Journal articles: 'Cutting modes'

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Knyazeva, Anna G., and Maria A. Anisimova. "Model of the Plate Oxygen Cutting Taking into Account the Kinetics of Heterogeneous Oxidation Reaction." Advanced Materials Research 880 (January 2014): 199–204. http://dx.doi.org/10.4028/www.scientific.net/amr.880.199.

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This paper presents a mathematical model of oxygen cutting of the plate. It takes into account not only possible heat losses from the treatment zone, but also the heat release doe to the oxidation reaction. In turn, the oxidation leads to plate thickness change. The model allows analyzing the temperature distribution during the cutting process for different modes. The following cutting modes are revealed in the model: surface cutting, detail splitting, kinetic and diffusion regime.

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Sotova, E. S., and M. N. Lazareva. "Increasing of cutting efficiency of heat-treated steel through the application of cutting tools of high-strength composite ceramic with coating E. S. Sotova, M. N. Lazareva." Izvestiya MGTU MAMI 6, no. 2-2 (March 20, 2012): 184–89. http://dx.doi.org/10.17816/2074-0530-68500.

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In the paper there is investigated the cutting tool properties of high-strength composite ceramics with multi-coated cutting hardened steel. Mathematical models of cutting are obtained. They establish the dependence of the wear and tear on the back of the instrument, roughness of the machined surface of the parts, the tangent component of the cutting forces, as well as cutting power on the modes of turning. A problem of cutting tools modes optimization is made of high-strength composite ceramics. It is established that the application of the multi-functional coatings on ceramic cutting tool allows you to increase the efficiency of processing.

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Averin, Evgenii, Aleksandr Zhabin, Andrey Polyakov, Yurii Linnik, and Vladimir Linnik. "Transition between relieved and unrelieved modes when cutting rocks with conical picks." Journal of Mining Institute 249 (September 20, 2021): 329–33. http://dx.doi.org/10.31897/pmi.2021.3.1.

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In the modern theory of rock cutting in production conditions, it is customary to distinguish two large classes of achievable cutting modes – relieved and unrelieved. The kinematics of rock-breaking machines in most cases determines the operation of the cutting tool in both modes in one cycle of the cutting tool. The currently available calculation methods have been developed for a stable, usually unrelieved cutting mode. In this article, the task is set to determine the conditions for the transition between cutting modes and the modernization of the calculation method for determining the forces on the cutting tool. The problem is solved by applying methods of algebraic analysis based on the search for the extremum of the force function on the cutter, depending on the ratio of the real cut spacing to the optimal spacing for the current chip thickness. As a result of solving the problem, an expression is obtained for determining the chip thickness, for which, at the specified parameters, the transition between the relieved and unrelieved cutting modes is provided. The obtained result made it possible to improve the method of calculating the forces on the cutting tool in the areas of the cutter movement with relieved cutting.

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Zmyzgova, T. R., N. V. Agapova, E. N. Polyakova, and A. V. Chelovechkova. "Image Analysis to Optimize Calculations of Grinding Modes." Journal of Physics: Conference Series 2096, no. 1 (November 1, 2021): 012126. http://dx.doi.org/10.1088/1742-6596/2096/1/012126.

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Abstract Modeling helps to investigate and analyze the interrelationships of grinding parameters as a single system. The article describes a computer model of the surface layer of a grinding wheel, taking into account the cutting modes and characteristics of the circle. The subsystem of the surface layer of the grinding wheel is the most important subsystem of grinding, since it connects the main characteristics of the circle with the cutting modes and with the parameters of the workpiece. The output characteristics of the model are the parameters of the working layer with a height of several micrometers, in which micro-cutting occurs. It is impossible (or very difficult) to obtain them by conducting full-scale experiments, since the processes are instantaneous, and the cutting elements have micro-dimensions. This problem was solved by creating a simulation stochastic model based on the geometric representation of the surface layer, which clearly displays the result. The analysis of the image of this model allowed us to numerically describe the output parameters of cutting. The article offers a faster algorithm for analyzing the image of the simulation model of the surface layer. It is carried out over a matrix containing numerical information about the projection of the surface layer, the main parameters of each single slice are calculated, and only after that the result is displayed on the graphic screen. To simulate a single grinding mode, it is necessary to repeat the process of "image creation - image analysis– output of results" hundreds of times until a stable state is reached. The use of the algorithm in an automated system will allow you to create a system for automatically searching for optimal grinding modes, as well as to derive analytical dependencies of cutting modes on input parameters, for example, on the parameters of the circle and the workpiece.

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Javidikia, Mahshad, Morteza Sadeghifar, Victor Songmene, and Mohammad Jahazi. "Low and High Speed Orthogonal Cutting of AA6061-T6 under Dry and Flood-Coolant Modes: Tool Wear and Residual Stress Measurements and Predictions." Materials 14, no. 15 (July 31, 2021): 4293. http://dx.doi.org/10.3390/ma14154293.

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The present research work aimed to study the effects of cutting environments and conditions on tool wear and residual stresses induced by orthogonal cutting of AA6061-T6. Cutting environments included dry- and flood-coolant modes and cutting conditions consisted of cutting speed and feed rate. A 2D finite element (FE) model was developed to predict tool wear and residual stresses and was validated by experimental measurements including machining forces, tool wear, and residual stresses. This was obtained by exploring various magnitudes of the shear friction factor and heat transfer coefficient and choosing proper coefficients using the calibration of the predicted results with the measured ones. The experimental results showed that the effect of cutting environment including dry and flood-coolant modes was negligible on machining forces. The experimental investigation also demonstrated that increasing feed rate raised machining forces, tool wear and residual stresses in both cutting environments. Low Speed Cutting (LSC) led to the highest value of tool wear and High Speed Cutting (HSC) provided the lowest values of resultant machining forces and residual stresses in both modes. Flood-coolant mode reduced tool wear and slightly decreased tensile residual stresses in comparison with dry mode. As a result, low feed rate and high-speed cutting under flood-coolant mode were proposed in order to improve tool wear and residual stress in orthogonal cutting of AA6061-T6.

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Ucun, İsmail. "INVESTIGATION OF EFFECT ON LATERAL DISPLACEMENT AND FORCES OF CUTTING MODE IN SAWABILITY OF METAL PROFILE USING CUTTING DISC." Transactions of the Canadian Society for Mechanical Engineering 36, no. 1 (March 2012): 23–35. http://dx.doi.org/10.1139/tcsme-2012-0003.

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In this study, the cutting performance of cutting discs used to cut metal materials depending on the cutting modes is determined with an experimental study. Tests are performed using a computer-controlled cutting machine. For the tests, peripheral speeds of 40, 60 and 80 m/sec and feed speeds of 0.3, 0.4, 0.5, 0.6, and 0.7 m/min. are preferred as cutting parameters. Up cutting and down cutting are taken into consideration as cutting modes. A three-point dynamometer is used to determine the forces applied on the disc during cutting. A KEYENCE laser displacement measuring device is used to measure lateral displacements of the cutting disc. According to the test results, feed speed is observed as a significant parameter in determining the cutting forces and lateral displacements. Up and down cutting modes used in the study has a significant effect on determining the forces applied on the cutting disc and lateral displacements of the disc. In particular, lateral displacements obtained in down cutting mode are observed to be greater than the displacements obtained in up cutting mode.

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Popov, Roman Andreevich, and Victor Grigorievich Chernikov. "Technical hemp harvesting cutting machine parameters and operation modes calculation." Agrarian Scientific Journal, no. 3 (March 29, 2021): 82–85. http://dx.doi.org/10.28983/asj.y2021i3pp82-85.

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In the article, a promising scheme of a rotary type apparatus for a non-support cut of technical hemp is proposed. The main design parameters of working bodies are defined (diameter of the cutting disc, location of the cutting segments, width of the device). The operating modes of the cutting device are calculated (cutting speed, rotational speed and angular speed of the blade, torque, power applied to the drive). The research results will be used to create working bodies for harvesting technical hemp.

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Ni, Xiuying, Jun Zhao, Fuzeng Wang, Feng Gong, Xin Zhong, and Haiwang Tao. "Failure analysis of ceramic tool in intermittent turning of hardened steel." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 232, no. 12 (February 8, 2017): 2140–53. http://dx.doi.org/10.1177/0954405416684156.

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The aim of this investigation is to identify the Al2O3-(W, Ti)C ceramic fracture modes and failure mechanisms under different cutting speeds and feed rates during intermittent turning of hardened 20CrMnTi steel. The failure surfaces of the cutting tools were examined by digital optical microscope and scanning electron microscope. The cutting forces and transient temperature in the intermittent turning process were measured during the entire life cycle. The experimental results showed that the cutting forces exhibited an increasing trend with the tool failure progression, which in turn accelerated the tool failure progression. The main failure modes of ceramic tools were wear and micro-chipping in the initial stage and final fractures, resulting from mechanical damage and thermal damage in intermittent turning processes. And the cutting temperature increased with the increase in cutting speed. The cutting speeds and feed rates were closely correlated with ceramic tool fracture modes and failure mechanisms. Furthermore, the combination of cutting parameters was divided into four regions with different fracture modes and failure mechanisms of cutting tools according to the fracture morphology of cutting tools. This partitioning analysis can provide a basis for the design and development of different ceramic cutting tools with the desired properties for different applications.

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Wang, Fenglei, Shaochun Ma, Haonan Xing, Jing Bai, Yezhen Yang, Jiwei Hu, and Yi Wei. "Sugarcane Basecutters: A Critical Review." Applied Engineering in Agriculture 37, no. 2 (2021): 251–65. http://dx.doi.org/10.13031/aea.14179.

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HighlightsThis article is focused on the technology review of sugarcane basecutters.Two cutting theories and two cutting modes are briefly reviewed.Three optimization methods of parameters for the sugarcane basecutter are summarized.Four potential research interests to improve the basecutting quality are discussed.Abstract. Basecutter is a core component of a sugarcane harvester, and its performance significantly influences cane yield and harvesting efficiency. Therefore, it is meaningful to conduct a critical review of sugarcane basecutters. In this article, an introduction about basecutter structure was performed first; then two cutting theories (support/free cutting) and two cutting modes (straight/sliding cutting) were briefly reviewed; and the advantages and disadvantages of different cutting modes were summarized. It was followed by a comprehensive introduction of three optimization methods: theoretical analysis and simulation, indoor experiments, and field experiments. Finally, four potential research interests in improving basecutting quality and exploring the stubble damage process were discussed. In this review, the comprehensive, detailed, and accurate information about sugarcane basecutter was expected to provide engineers with a technology reference to improve the basecutting performance. Keywords: Basecutter, Cutting theories and modes, Optimization methods, Potential research interests, Sugarcane harvester.

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Wang, Xingjun, Zhuoran Yang, Feifei Xu, and Liping Wang. "Improving surface quality in microcutting of 10B/Al composite." Industrial Lubrication and Tribology 71, no. 5 (July 8, 2019): 672–76. http://dx.doi.org/10.1108/ilt-03-2019-0079.

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Purpose The microcutting performance of the 10B/Al composite is significantly poor because of the existence of hard boron particles. The effects of cutting parameters, including uncut chip thickness and cutting speed, on the material removal mechanism and surface generation are investigated to improve the surface quality. Design/methodology/approach The 2D finite element model, which includes a rigid cutting tool, a reinforced phase, a matrix and a dense layer, is established. The effects of uncut chip thickness on material removal mechanism and surface generation are analyzed from a probabilistic perspective. The relationship between the uncut chip thickness and the probability in which the machined surface will have a better surface quality is constructed. A Gaussian distribution formula is applied to describe the machined surface quality. Findings Two representative particle-removal modes, namely, cutting-through and pulling-out modes, are observed. For cutting-through mode, when the relative cutting location is small, better surface quality is obtained. For pulling-out mode, the quality of the machined surface gradually improves because the further increase of the relative cutting location reduces the height of the generated pit and scratches. The microcutting at high cutting speed tends to suppress the scratch phenomenon. The best surface quality will be obtained at small uncut chip thickness and high cutting speed. Originality/value The surface quality generated in microcutting of the 10B/Al composite can be improved by optimizing the cutting parameters and controlling the particle-removal modes based on the proposed Gaussian distribution formula.

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Keer, L. M., Y. Xu, and V. K. Luk. "Analysis of High Speed Axially Symmetric Cutting for Stripping Peripheral Coating." Journal of Manufacturing Science and Engineering 120, no. 1 (February 1, 1998): 185–91. http://dx.doi.org/10.1115/1.2830099.

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A theory of axially symmetric cutting is used to estimate the resistance to material removal of a composite cylinder undergoing stripping of a peripheral coating. The removal of materials from the surface of the cylindrical workpiece is analyzed using the minimum energy theory of Merchant. It is assumed that the shear surface is oriented at an angle π, such that the total work done at the shear surface by relative sliding and at the rake face due to friction has a minimum value. When the material conditions and the depth of cut are the same for cuttings in the axially symmetric and orthogonal modes, chips removed in axially symmetric cutting will have an additional energy loss due to the tensile hoop stress. The resistance due to the axially symmetric cutting is therefore larger than that arising from orthogonal cutting. The predicted resistance of axially symmetric cutting are in favorable agreement with data of dynamic stripping tests performed at Sandia National Laboratories.

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Huang, Xiang, and Z. X. Lin. "The Optimal Model of Tool Paths Generation for Pocket Milling." Materials Science Forum 626-627 (August 2009): 201–6. http://dx.doi.org/10.4028/www.scientific.net/msf.626-627.201.

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This paper describes an integrated method to determine optimal cutting parameters for milling pocket based on minimum cutting time. The main constraints entailed in real cutting, such as chatter free, uncut free tool paths, cutter and machine tool limitations, are included into the optimal model. The optimal parameters (depth of cut, width of cut, spindle speed) are inserted into the tool paths generation directly for four kinds of conventional cutting modes (Zig and Zig-Zag parallel cutting mode, inwards and outwards spiral pattern modes). According to the fact that the first cut in every cut level is slotting milling, the milling areas are divided into slotting milling area and general milling area. This dynamically corrected tool paths generation method changes the order of conventional tool paths, so different cutting parameters are used in slotting milling and general milling areas. The case study has demonstrated that the proposed methods can identify the optimal milling conditions and generate tool paths automatically and result in minimum milling time.

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Ismail, F., and V. R. Vadari. "Machining Chatter of End Mills With Unequal Modes." Journal of Engineering for Industry 112, no. 3 (August 1, 1990): 229–35. http://dx.doi.org/10.1115/1.2899579.

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This paper further investigates the effect of reducing the contribution of the mode coupling mechanism to machining chatter. This reduction was achieved in a previous investigation by making the cutting tool more compliant in one direction. Thus, in particular, the objective of the present work was to study the effect of varying the orientation angle between the flexible mode and the leading edge of the first cutting tooth. The study covered slotting and half immersion, up and down milling. The modified cutters, irrespective of the orientation angle, are shown to outperform the regular cutter in slotting over a wide speed range. This angle is found to have a very strong effect in half immersion. The study is conducted using both computer simulation and cutting tests using aluminum.

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Zhao, Wei, Haibo Hong, and Hongzhi Wang. "Mechanism of Unstable Material Removal Modes in Micro Cutting of Silicon Carbide." Micromachines 10, no. 10 (October 13, 2019): 696. http://dx.doi.org/10.3390/mi10100696.

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This study conducts large-scale molecular dynamics (MD) simulations of micro cutting of single crystal 6H silicon carbide (SiC) with up to 19 million atoms to investigate the mechanism of unstable material removal modes within the transitional range of undeformed chip thickness in which either brittle or ductile mode of cutting might occur. Under this transitional range, cracks are always formed in the cutting zone, but the stress states cannot guarantee their propagation. The cutting mode is brittle when the cracks can propagate and otherwise ductile mode cutting happens. Plunge cutting experiment is conducted to produce a taper groove on a 6H SiC wafer. There is a transitional zone between the brittle-cut and ductile-cut regions, which has a mostly smooth surface with a few brittle craters on it. This study contributes to the understanding of the detailed process of brittle-ductile cutting mode transition (BDCMT) as it shows that a transitional range can occur even for single crystals without internal defects and provides guidance for the determination of tcritical from taper grooves made by various techniques, e.g., to adopt larger tcritical around the end of the transitional range to increase machining efficiency for grinding or turning as long as the cracks do not extend below the machined surface.

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Zhao, Qing Liang, Jun Yun Chen, and Jian Luo. "Investigation of Surface Roughness Prediction in Single-Point Diamond Turning." Advanced Materials Research 154-155 (October 2010): 856–61. http://dx.doi.org/10.4028/www.scientific.net/amr.154-155.856.

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Experimental results indicate the previous theoretical model cannot predict well the surface roughness in single-point diamond turning on a precision lathe. In solving that, an improved model was presented in this paper. The difference between the previous model and the improved model is that the relative tool-workpiece vibration is measured before cutting operation using a capacitive displacement sensor in the previous model whilst the vibration is extracted from the measured surface profile in the improved model. The relative vibration was first studied under various cutting conditions to establish the vibration modes under corresponding cutting conditions. Then the surface roughness was predicted based on the vibration modes. The results prove that there is good agreement between the predicted values and measured values and the improved model is useful and reliable.

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Hu, Qiang, Xian Li Liu, Fu Gang Yan, Yao Nan Cheng, Shuai Qiao, and Geng Huang He. "Research on Machinability of the Shell Materials and Tools' Failure." Key Engineering Materials 584 (September 2013): 38–44. http://dx.doi.org/10.4028/www.scientific.net/kem.584.38.

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Large cylindrical shell is a large diameter and thick wall tube part working in high temperature and high pressure environment. It is made of 2.25Cr-1Mo-0.25V high strength steel, whose machinability is special. The characteristics of cutting temperature and cutting force are researched in the cutting process by analyzing the machinability of 2.25Cr-1Mo-0.25V steel in this paper. And the main tool failure modes are analyzed in the cutting process, combining with empirical approach to compare tool failure modes under cutting different steels. The high efficiency cutting measures are proposed in tool optimization design finally, in order to provide a reference for high efficiency machining of large cylindrical materials.

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Ovsyannikov, V. E., and V. I. Vasilyev. "DETAILS’ REPAIR OF CONSTRUCTION AND ROAD MACHINES: FLUCTUATIONS’ MODELLING." Russian Automobile and Highway Industry Journal 16, no. 5 (November 2, 2019): 534–42. http://dx.doi.org/10.26518/2071-7296-2019-5-534-542.

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Introduction. Hole details are quite widely used in structures of construction and road machines. The specialists apply boring for draft, semi-fair, and in some cases for fair processing of such surfaces. This type of processing is often followed by the negative nature of oscillatory processes that leads to decrease in accuracy and in the surface quality. The paper studies the possibility of the calculation method’s usage in oscillatory processes, which allows assigning the cutting modes by providing required output parameters.Materials and methods. The authors used the double-support beam as a design model of a boring cutter. The solution of the fluctuations’ modeling came down to definition of point movements, which corresponded to cutter top (points of application equally effective cutting forces). The authors made the definition of movements with use of Mor integrals. Therefore, the paper considered the impact of chip formation and separation due to perturbing forces.Results. The authors carried out the calculation of forces’ values in cutting with use of the degree dependences. Moreover, the authors accepted the formation’s frequency as the frequency of the perturbing influenced structure. The frequency of the chip formation was defined on the basis of estimated dependences, which connected parameters of the tool, the cut-off layer and modes of cutting. As a result, the author received the implementations of oscillatory processes and studied the influence of different factors on vibration amplitude.Discussion and conclusions. The authors make assessment of the received results’ adequacy by comparison with experimental data. The error doesn’t exceed 20%. The developed model considers geometrical parameters of the tool (a departure, plate corners, etc.), the modes of cutting both mechanical properties of the processed material and parameters of the chip formation. The model can be used both at design of boring operations and by optimization of the cutting modes for the purpose of productivity increase.

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Черемисинова, Natalya Cheremisinova, Еремин, Mikhail Eremin, Панов, and Roman Panov. "Investigation of dynamic characteristics of the process of abrasive microcutting of brittle nonmetallic materials." Forestry Engineering Journal 4, no. 1 (April 21, 2014): 162–68. http://dx.doi.org/10.12737/3363.

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Studies have established the influence of the structural composition of the processed materials, cutting modes and diamond indenter geometry on the dynamics of the process of microcutting. Mathematical formulas, reflecting the influence of the cutting modes of nonmetals and geometry of diamond microcut on impulse force microcutting, are given. Power dependences for glass, ferrites, ceramics, polycor can be used for analysis of the grinding process, the calculation of the cutting modes and in the development of technological processes of finishing brittle nonmetallic materials.

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Koc, Salih, and Arash Dahi Taleghani. "A Fast Method to Determine the Critical Depth of Cut for Various Rock Types." Energies 13, no. 17 (August 31, 2020): 4496. http://dx.doi.org/10.3390/en13174496.

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Knowing correct values of the rock mechanical properties is crucial for many engineering applications in subsurface. Rocks may show two failure modes during cutting: ductile and brittle. In the ductile mode, rock deforms plastically, and the debris is powdered ahead of the cutting face. On the other hand, chips are the major cutting characteristics for the brittle failure during rock cutting. The critical depth of cut represents the transition point between these two models, so knowing this value helps better predict the failure mechanism of rock. In this paper, a new method is introduced based on measuring the roughness of the groove for determining the transition point of failure modes for every rock sample after the scratch test. The graph depicting the average change in the surface roughness (Rt) versus the scratched surface roughness (ΔR) can be used to identify the rock failure mode and determine the transition point for the cutting process. The value of this slope increases until the depth of cut reaches the transition point, and then the slope reaches a constant value. The main purpose of this paper is to estimate the critical depth of cut of different rock specimens employing the new surface roughness model.

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Rivkin, Alexey V., Alexandr N. Sobolev, Alexey Ja Nekrasov, and Michael O. Arbuzov. "Researching of the Influence of the Cutting Parameters of Expanded Polystyrene with a Thermal Tool on the Form Errors of the Product." Key Engineering Materials 910 (February 15, 2022): 97–102. http://dx.doi.org/10.4028/p-044x93.

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Boland, Richard J., and Louis R. Pondy. "The micro dynamics of a budget-cutting process: Modes, models and structure." Accounting, Organizations and Society 11, no. 4-5 (January 1986): 403–22. http://dx.doi.org/10.1016/0361-3682(86)90010-3.

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Dai, Xianwei, Zhongwei Huang, Huaizhong Shi, Xiaoguang Wu, and Chao Xiong. "Cutting force as an index to identify the ductile-brittle failure modes in rock cutting." International Journal of Rock Mechanics and Mining Sciences 146 (October 2021): 104834. http://dx.doi.org/10.1016/j.ijrmms.2021.104834.

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Kabaldin, Y. G., D. A. Shatagin, and A. M. Kuzmishina. "The Development of a Digital Twin of a Cutting Tool for Mechanical Production." Proceedings of Higher Educational Institutions. Маchine Building, no. 4(709) (April 2019): 11–17. http://dx.doi.org/10.18698/0536-1044-2019-4-11-17.

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A digital model (twin) of a cutting tool based on neural network modeling is proposed in this work. It is shown that the developed virtual model makes it possible to optimize the composition and structure of wear-resistant coating and to determine the processing modes that ensure the maximum wear resistance of the cutting tool. The optimization can be performed before the actual manufacturing of the cutting tool by varying the input data of the neural network has taken place. A digital passport of the cutting tool allows the consumer to avoid buying a counterfeit product. Information security issues are considered.

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Khusainov, Rustem, and Dinar Safin. "Identification of the Model of the Dynamic System of a Milling Machine Based on the Study of Vibroacoustic Characteristics." MATEC Web of Conferences 346 (2021): 03030. http://dx.doi.org/10.1051/matecconf/202134603030.

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In this paper, the authors propose a method for ensuring the reliability of the computational model intended for the study of dynamic processes in technological cutting systems. The advantage of using 3D models in CAD/CAM/CAE systems for solving such problems is shown. The method of conducting an experimental study to identify the calculated model by natural frequencies is justified. The method is proposed for adjusting the 3D model in order to ensure that the dynamic pattern occurring during cutting corresponds to experimental processes. The authors give a concrete example of solving the problem of identifying the computational model of the dynamic system of a milling machine. An example of solving the applied problem of optimizing cutting modes in terms of vibration resistance parameters using the identified computational model is also given.

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Xiang, Ke Jun, Zhan Qiang Liu, and Xing Ai. "Development of High-Speed Cutting Database System with Hybrid Intelligent Reasoning." Key Engineering Materials 315-316 (July 2006): 696–700. http://dx.doi.org/10.4028/www.scientific.net/kem.315-316.696.

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First, the problems in cutting database are analyzed and primary factors that should be considered in establishing high-speed cutting database are pointed out, including data presenting modes, data collecting and updating, the intelligence of the database, and the integration with CAD, CAPP and CAM. Secondly, high-speed cutting system is analyzed. On the basis of the categorization of the variables, the function model and the information model of cutting database are set up, which leads to the establishment of the architecture of high-speed cutting database. Finally, the combination mechanism of the rule-based reasoning and the case-based reasoning is analyzed and the process of the hybrid reasoning is given.

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Bayly, Philip V., Michael T. Lamar, and Sean G. Calvert. "Low-Frequency Regenerative Vibration and the Formation of Lobed Holes in Drilling." Journal of Manufacturing Science and Engineering 124, no. 2 (April 29, 2002): 275–85. http://dx.doi.org/10.1115/1.1459087.

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Large-amplitude vibrations in drilling often occur at frequencies near multiples of the rotation frequency, even when these are much lower than the system’s first natural frequency. These vibrations are responsible for out-of-round, “lobed” holes. A simplified model of the mechanics of this phenomenon is presented in this paper. The model includes cutting and “rubbing” forces on the drill, but inertia and damping of the tool are neglected at low speeds. This quasi-static model remains dynamic because of the regenerative nature of cutting; the force on each cutting element depends on both the tool’s current position and its position at the time of the previous tooth passage. Characteristic solutions, including unstable retrograde “whirling” modes, are found in terms of eigenvalues and eigenvectors of a discrete state-transition matrix. These unstable modes correspond closely to behavior observed in drilling tests.

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Rudik, A. V., and G. V. Pasov. "DEPENDENCE OF CUTTING SURFACE PARAMETERS FROM SURFACE GRINDING MODES." Scientific notes of Taurida National V.I. Vernadsky University. Series: Technical Sciences 4, no. 1 (2019): 7–11. http://dx.doi.org/10.32838/2663-5941/2019.4-1/02.

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Chemezov, Denis, Aleksandr Petrenko, Andrey Komissarov, and Oleg Gorbatenko. "OPTIMIZATION OF CUTTING MODES WHEN SEMIFINISH AND ROUGH MILLING." Theoretical & Applied Science 76, no. 08 (August 30, 2019): 209–13. http://dx.doi.org/10.15863/tas.2019.08.76.27.

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Zhang, Chun-Liang, Ying-Xin Yang, Hai-Tao Ren, Can Cai, Yong Liu, and Ming Yang. "Investigation of the Cross-Cutting Polycrystalline Diamond Compact Bit Drilling Efficiency." Shock and Vibration 2021 (February 26, 2021): 1–15. http://dx.doi.org/10.1155/2021/8841255.

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The parallel track scraping principle of conventional PDC bits largely limits the cutting efficiency and working life in deep formations. Cross-cutting polycrystalline diamond compact (PDC) bit may be an efficient drilling tool that increases the rock-breaking efficiency through both cross-cutting and alternate-cutting modes of the PDC cutter. The motion track equation of the cross-cutting PDC bit was derived by using the compound coordinate system, and the motion track was analyzed. Meanwhile, through the unit experiment and discrete element simulation, the cutting force, volume-specific load, and crack propagation were analyzed under different cutting modes. Through establishing a nonlinear dynamic model of the bit-rock system, the speed-up mechanism of the novel bit was analyzed based on rock damage, rock stress state, and motion characteristic of the bit during the rock-breaking process. Compared with unidirectional cutting, cross-cutting produces less cutting force, more brittle fracture, and a greater decrease of formation strength. The novel PDC bit can put more rock elements into a tensile stress condition than a conventional PDC bit, and the plastic energy dissipation ratio of the cross-cutting PDC bit is lower while the damage energy consumption ratio is higher than they are for conventional bits, which is beneficial to increasing the ratio of fracture failure and improving rock-breaking efficiency. Laboratory drilling tests show that the cross-cutting PDC bit can create mesh-like bottom-hole features. Drilling contrast experiments show that a mesh-like bottom-hole pattern can be obtained by using the cross-cutting PDC bit, of which the ROP is obviously higher than that of the conventional bit when drilling in sandstone or limestone formation. Meanwhile, the influence of deviation angle, weight on bit, and rock properties on cutting efficiency of the cross-cutting PDC bit are studied.

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Siyanov, Sergey. "Single-stage support of friction surface wear intensity at edge processing." Science intensive technologies in mechanical engineering 2021, no. 3 (March 20, 2021): 43–48. http://dx.doi.org/10.30987/2223-4608-2021-3-43-48.

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On the basis of the investigations carried out there are offered theoretical dependences for the determination of wear intensity with regard to cutting modes with edge tools. They allow defining optimum cutting modes to ensure the required intensity of friction surface wear at edge processing.

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Podashev, Dmitry. "Theory of Formation of Edge’s Surface Roughness Finished by Radial Polymer-Abrasive Brushes." Materials Science Forum 1037 (July 6, 2021): 571–80. http://dx.doi.org/10.4028/www.scientific.net/msf.1037.571.

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Formation of roughness during treatment by polymer-abrasive brushes occurred as a result of interaction of cutting micro-relief with processed surface. The cutting micro-relief of abrasive instrument is described in the form of random process with normal distributional law. When calculation of roughness, the depths of penetration of cutting lugs in processed material as well as regularity of changing of radial radius of rounding of peaks of cutting lugs from modes of treatment are taken into consideration. Set are relations of roughness of processed edge from modes of treatment (deformations of instrument, cutting velocities, feeding) as well as from constituent cutting force. It is proved that usage of polymer-abrasive brushes for rounding of edges faces all requirements of aviation industry on roughness of processed edges.

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Bezjazychnyj, V. F. "THE RATIONALE FOR THE ASSIGNMENT OF CUTTING DATA TO ENSURE THE REQUIRED QUALITY OF THE MATERIAL OF THE SURFACE LAYER DETAILS." Spravochnik. Inzhenernyi zhurnal, no. 292 (July 2021): 3–17. http://dx.doi.org/10.14489/hb.2021.07.pp.003-017.

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The justification of the feasibility of determining the cutting modes when processing with a blade tool with optimization to minimize the wear of the cutting wear is given, i.e. for its maximum resistance and at the same time to ensure the required quality indicators of the material of the surface layer of the part after processing. The initial data for the calculation and examples of calculating the cutting mode and surface layer quality indicators are given. Nomograms for determining the cutting modes, taking into account the quality indicators of the surface layer, are of practical interest for technologists of machine-building enterprises.

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Yaresko, S. I. "Application Features of the Cutting Tool, Hardened by Laser Pulsed Radiation." Materials Science Forum 870 (September 2016): 46–51. http://dx.doi.org/10.4028/www.scientific.net/msf.870.46.

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The performed studies of the application features of the cutting tool, hardened by laser pulsed radiation are based on the comprehensive cutting process analysis. In this approach, the modeling results of the cutting process with hardened tool allowing to define the area of the effective use of laser treatment (LT). In particular, the increase in the tool life only for the certain values of the cut depth at the fixed irradiation energy was observed. The causes of the observed phenomena were determined based on durometric researches and studies of the microstructure in the contact zone. The measurements were performed for the cutters (steel R18) after turning structural steel 12Kh2N4A under various cutting modes. It was found that the processes of tool material softening, observed at turning with high feed values, limits the scope of cutting conditions by hardened tool. It is shown that LT leads to increased tool life, operating at the cutting conditions when the growth of tension thermodynamic in the cutting zone does not result in the development of softening processes. It is established that the area cutting modes are restricted to the values of cut depth not exceeding 1.5 mm (V=42.5 m/min, s=0.2 mm/rev) for the investigated pair of tool-workpiece (R18-12Kh2N4A). Tool life increases by more than 4 times compared to the durability of the non-irradiated tool provided the optimal combination of laser processing and hardened tool cutting modes is achieved.

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Янюшкин, Александр, Aleksandr Yanyushkin, Даниил Рычков, Daniil Rychkov, Дмитрий Лобанов, and Dmitriy Lobanov. "Costeffectiveness in polymeric composite material cutting." Bulletin of Bryansk state technical university 2015, no. 4 (December 30, 2015): 173–79. http://dx.doi.org/10.12737/17157.

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The creation of new structural materials for manufacturing parts of various technical destinations is an integral part of modern industry, inasmuch as the requirements to products are mainly directed to the decrease of their mass, hardening, conservation of properties at the influence of hostile environment and temperature without attraction of additional expenditures for manufacturing. But, in the course of cutting a tool is worn out quickly and cannot ensure high efficiency of machining. The purpose of researches consists in the technological process efficiency increase of composite material edge cutting machining. As a problem of researches is the development of the procedure for the assessment of expenditures presented depending on the peculiarities of the tool design, its capacity for work and cutting modes. For the solution of problems set there is offered a procedure for the assessment of expenditures presented which takes into account the expenses for a cutter, work material, electric power and other parameters characterizing the techniques taking into account the specificity of composite material machining. There is an expenditure binding to empirical values of the technological period of tool life and machining productivity depending on cutting modes. The procedure is realized for the optimization of the technological process of composite material milling. The recommendation for the definition of cutting modes ensuring low expenditures for manufacturing is developed.

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Ширинкин, Виталий, Vitaliy Shirinkin, Ринат Абзаев, Rinat Abzaev, Игорь Койнов, Igor Koynov, В. Макаров, V. Makarov, Александр Мешкас, and Aleksandr Meshkas. "Peculiarities in diagnostics of cutting process at composite material drilling." Science intensive technologies in mechanical engineering 1, no. 12 (December 30, 2016): 20–27. http://dx.doi.org/10.12737/23484.

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The paper reports the working problems and their consequences for composite materials drilling, milling and turning. A bench for computer diagnostics of cutting process at composite materials drilling is developed. The dependences researches in cutting physical parameters influence upon different cutting modes on the basis of the analysis of scientists’ papers and recommendations and also maximum possibility of equipment and mathematical planning of an experiment are carried out. The procedure of two-factor mathematical planning of an experiment is presented. The diagrams of dependences and description of conclusions and recommendations on the application of the bench for computer diagnostics of a cutting process for the choice of optimum cutting modes at the machining of VCU-39 composite material are obtained.

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Moriwaki, Toshimichi. "Development of 2DOF Ultrasonic Vibration Cutting Device for Ultraprecision Elliptical Vibration Cutting." Key Engineering Materials 447-448 (September 2010): 164–68. http://dx.doi.org/10.4028/www.scientific.net/kem.447-448.164.

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A new ultrasonic vibration cutting device for ultraprecision elliptical vibration cutting has been developed. The elliptical vibration cutting device developed utilizes combination of bending and longitudinal modes of vibration of the stepped vibrator to generate circular or elliptical vibration locus at the cutting tool edge. The design principle as well as the structure and the performance of the elliptical vibration cutting device is introduced here. The experimental results of diamond cutting of Co-Cr-Mo Alloy proved that good surface quality with roughness of 20 nmPV can be obtained stably with the elliptical vibration cutting device developed.

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Liu, Han Lian, Qiang Shi, Chuan Zhen Huang, Li Mei Wang, Bin Zou, and Zhi Hong Yang. "Experimental Study on the Cutting Performance of In Situ Fabricated TiB₂ Toughened TiN-Based Composite Ceramic Tool in Turning Stainless Steel." Advanced Materials Research 1017 (September 2014): 630–35. http://dx.doi.org/10.4028/www.scientific.net/amr.1017.630.

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A new developed TiN-TiB2 ceramic cutting tool material (marked as TBN5) with high comprehensive mechanical properties was fabricated by the in-situ integration synthesis process. The cutting performance of TBN5 tool in continuously turning the austenitic stainless steel 1Cr18Ni9Ti was experimentally investigated; the failure modes and failure mechanisms of the cutting tool TBN5 were analyzed combined with its mechanical properties. Aiming at the materials removal amount, the optimal cutting parameters of TBN5 tool in turning 1Cr18Ni9Ti were firstly obtained by the orthogonal tests; and then with this cutting parameters, the cutting performance of TBN5 compared to the commercial tools LT55 and SG4 was studied. The results showed that the advanced tool TBN5 could get longer tool life than LT55 and SG4; the main failure modes of TBN5 were flank wear, breakage and the flaking of main cutting edge. The scope of its flaking was smaller and diffusion wear was not obvious, which was related to the higher fracture toughness and the higher thermal conductivity of TBN5.

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Jašinskas, Mindaugas, Irmantas Gedzevičius, Giedrius Garbinčius, and Justinas Gargasas. "RESEARCH ON CUTTING THE PLASMA OF ALUMINIUM ALLOYS." Mokslas - Lietuvos ateitis 2, no. 4 (August 31, 2010): 83–87. http://dx.doi.org/10.3846/mla.2010.077.

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The paper analyses the plasma cutting process of nonferrous metals. The influence of aluminium and modes of brass plates cut on the quality of the cut using air plasma are presented. The modes of plasma cutting counting differences in speed, flow, the tip of the angle and the distance between the shell and the cutting plate are analysed. According to the given results, dependences are proposed. A particular influence of the cut parameter on the quality of the cut is determined.

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Ouyang, Ba Sheng, Guo Xiang Lin, and Yong Hui Tang. "Analysis of Cutting Forces and Machining Error in Ball End Milling of Cylindrical Surfaces." Advanced Materials Research 328-330 (September 2011): 560–64. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.560.

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Cutting forces and machining error in contouring of concave and convex surfaces using helical ball end mills are theoretically investigated. The cutting forces are evaluated based on the theory of oblique cutting. The machining errors resulting from the tool deflections due to these forces are evaluated at various points of the machined surface. The influence of various cutting conditions and cutting modes on machining error is investigated and discussed.

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40

Voronov, V. P., and M. I. Sedykh. "Cutting parameters at needle-milling." Izvestiya MGTU MAMI 3, no. 2 (January 20, 2009): 192–95. http://dx.doi.org/10.17816/2074-0530-69687.

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In article is open the questions wire brash, its specific and advantage in comparison with other ways of performance of operations of preparation of surfaces of preparations for anticorrosive covering of metal, welding by explosion etc. In article are consider еhe questions of the basic parameters of cutting at wire brash and on what they depend, and as a choice of modes of cutting, their influence on quality of a surface and productivity of process.

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Ankin, A. V., and A. S. Adeev. "Dimensioning in Combined Cutting-deforming Machining with Axial Oscillations." Izvestiya MGTU MAMI 3, no. 1 (January 10, 2009): 99–102. http://dx.doi.org/10.17816/2074-0530-69926.

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The paper examines dimension processing in the technological system for combined cutting-deforming machining of needle shafts class. Actually dimension processing provided by cutting block, while the rollers of deforming part forming of surface roughness with plastic deformation method. Detail the process of the axial oscillation for removal of elastic-reduced metal after cutting. The mathematical model for calculating the error of machining consists of two parts. Computer modeling and subsequent analysis of the solutions will help to design technological process of combined cutting-deforming machining of needle shafts class and assign these modes of machining, which will provide the quality of demanded parameters: the dimension of part and surface roughness.

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Lobanov, D. V., Pavel V. Arkhipov, A. S. Yanyushkin, and Vadim Yu Skeeba. "The Research into the Effect of Conditions of Combined Electric Powered Diamond Processing on Cutting Power." Key Engineering Materials 736 (June 2017): 81–85. http://dx.doi.org/10.4028/www.scientific.net/kem.736.81.

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The paper presents results of the investigation into efficiency of high-tensile composite materials grinding with metal bonded diamond abrasive tools, as well as it demonstrates the necessity to stabilize diamond disks cutting properties in order to reduce cutting power, since it is one of important economic indicators of processing. The comparative analysis of preliminary studies of various diamond processing methods reveals that the minimal cutting power is observed when using the combined method of electric powered diamond processing which includes electrochemical grinding and simultaneous continuous electrochemical dressing of the grinding disk surface. Further research into the suggested method reveals relevant mathematical dependences of metal-bonded diamond disks cutting power and electric modes. The analysis of the results shows that combining of hard-alloy surface electrochemical dissolution and electrochemical dressing of the disk surface facilitates mechanical cutting with high effectiveness and little effort. This leads to substantial reduction of cutting power as compared with other methods. The reasonable electric modes are discovered which provide the minimal cutting power without reducing efficiency of the process and quality of finished product.

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43

Loktionov, Aleksandr, Nadezhda Gaar, and and Аndrey Rakhimyanov. "Determining the processing modes of the low carbon steel by high-precision plasma cutting based on dimensionless complexes." MATEC Web of Conferences 297 (2019): 01007. http://dx.doi.org/10.1051/matecconf/201929701007.

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The results of the investigations on determining the processing modes during high-precision plasma cutting of low carbon steel based on the values of Peclet number and dimensionless power which provide the minimal value of deviation of the cut sides from perpendicularity are presented in the paper. The conditions of obtaining the cut of high quality from the viewpoint of minimizing the cut side deviation from perpendicularity are determined by cutting low carbon steel. The dependences of the cutting speed and the cut width on the processed material thickness, intended to determine the processing modes and adjustment of the linear dimensions are established. The investigations were made on the device of the thermal cutting “Termit PPl” based on the installation of the high-precision plasma cutting HiFocus 130i of Kjellberg firm by using the HiFocusplus technology. Low carbon construction steel St3 was chosen as an investigated material. The thickness of the sheet material constituted 4 mm, 6 mm, 10 mm, 16 mm and 20 mm.

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Hattori, Kosuke, Hiroyuki Kodama, Toshiki Hirogaki, and Eiichi Aoyama. "Investigation of Chatter Vibration in End-Milling Process by Considering Coupled System Model." Advanced Materials Research 939 (May 2014): 201–8. http://dx.doi.org/10.4028/www.scientific.net/amr.939.201.

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Chatter vibration in cutting processes usually leads to surface finish degradation, tool damage, cutting noise, energy loss, etc. Self-excited vibration particularly seems to be a problem that is easily increased to large vibration. The regenerative effect is considered as one of the causes of chatter vibration. Although the chatter vibration occurs in various types of processing, the end-milling is a typical process that seems to cause the chatter vibration due to a lack of rigidity of one or more parts of the machine tools, cutting tool, and work-piece. The aim of our research is to propose a simple method to control chatter vibration of the end-milling process on the basis of a coupling model integrating the related various elements. In this study, hammering tests were carried out to measure the transfer function of a machine tool and cutting tool system, which seems to cause vibration. By comparing these results, finite elemental method (FEM) analysis models were constructed. Additionally, cutting experiments were carried out to confirm the chatter vibration frequencies in end-milling with a machining center. In the hammering tests, impulse hammer and multiple acceleration pick-ups are connected to a multi-channel FFT analyzer and estimate the natural frequencies and natural vibration modes. A simplified FEM model is proposed by circular section stepped beam elements on the basis of the hammering test results, considering a coupling effect. In comparisons of the calculated results and hammering test results, the vibration modes are in good agreement. As a result, the proposed model accurately predicts the chatter vibration considering several effects among the relating elements in end-milling. Moreover, it can be seen that the chatter vibration is investigated from a viewpoint of the integrating model of the end-milling process.

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Gavrilin, Alexey, Boris Moyzes, Kirill Kuvshinov, Maxim Vedyashkin, and Olga Surzhikova. "Determination of Optimal Milling Modes by Means of Shock-Vibration Load Reduction on Tool and Peak-Factor Equipment." Materials Science Forum 942 (January 2019): 87–96. http://dx.doi.org/10.4028/www.scientific.net/msf.942.87.

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Vibrodiagnostics of metal-cutting machines is an efficient method to increase reliability of all elements of the technological system «machine tool-device-instrument-detail». The development of vibrodiagnostic methods is especially important for milling metal-cutting machines which operate in intermittent cutting mode and are exposed to shock-vibration loads. One of the trends in the development of metal cutting equipment is to increase its productivity by expanding the ranges of cutting modes. Increase in the combination of cutting modes leads to increased probability of coincidence of the natural frequencies of the equipment and the frequencies of the cutting process which in its turn leads to operation of the machine equipment elements under resonance conditions. In the article we provide the results of our research aimed to develop the method to reduce shock-vibration load on tool and peak-factor equipment of milling machine. In our research we developed the technique that makes it possible to measure not only the general level of vibration, but also other parameters used for vibrodiagnostics, for example, the value of the peak factor has been developed. The method includes the development of a principle layout and of a plan for a three-factor experiment, construction and analysis of vibrational and spectral diagrams of the milling process for the assignment of optimal modes that provide machine operating at lower level of shock-vibration loads. Based on the results of the work we have come to the conclusion that it is rather promising to use the peak factor in analysis of the milling machines reliability.

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Анцев, Александр, and Aleksandr Ancev. "CALCULATION OF MULTI-BLADE CUTTING TOOL RELIABILITY." Bulletin of Bryansk state technical university 2019, no. 6 (June 27, 2019): 30–37. http://dx.doi.org/10.30987/article_5d10851f338ed8.53056430.

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The process effectiveness of blade cutting is defined considerably with the prediction accuracy of cutting tool durability term. But, in spite of that cutting processes have a probabilistic character, in modern mechanical engineering there are used durability de-pendences describing only the dependence of an average period of blade cutting tool durability upon cutting modes without taking into account a stochastic nature of tool wear depending upon many factors. For ac-counting cutting process variability there are offered stochastic models of cutting tool failure, but they hold good for a cutting tool with one cutting edge and in the case with a multi-blade cutting tool they must be speci-fied. In the paper it is defined that at a fan wear model with the increase of the blade number the period of cutting tool durability decreases, as failure likelihood of even one blade increases because of the blade properties spread of one tool. The factor of a durability period variation decreases with the growth of the blade number because of the decrease of an average durability period decrease. In the case of a wear accumulation model the multi-blade tool reliability does not depend upon the blade number. The dependences of an average period of durability and a factor of variation at a complex model of wear are similar to the case with the fan model of wear, but their values will be higher. In the case of a destruction model the factor of multi-blade tool durability variation does not depend upon the blade number, but an average durability depends considerably upon the blade number, but the dependence appearance corresponds to the dependence of an average durability at a fan model of wear. The type of the dependence of durability average period upon on the blade number at a generalized model of failures is similar to the cases considered previously, and a kind of the dependence of a variation factor changes depending on model parameters

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47

Furmanov, D. V., N. E. Lysakov, and L. M. Shamakhov. "Experimental and analytical justification of the asphalt concrete cutting process by road milling machines working equipment." Russian Automobile and Highway Industry Journal 19, no. 2 (May 19, 2022): 170–82. http://dx.doi.org/10.26518/2071-7296-2022-19-2-170-182.

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Introduction. The article is devoted to the results of a study of the cutting resistance of road asphalt concrete in the process of removing worn coatings by the working bodies of milling machines. The relevance of the work is due to the emergence of new grades of asphalt concrete and new types of cutting elements, for which it is difficult to predict the loads on the working body when solving the problems of designing new and justifying the operating modes of existing machines.Purpose. To calculate the parameters of the working body of the road milling machine.Materials and methods. The experimental work was carried out by determining the horizontal and vertical components of the resistance force of cutting asphalt concrete. The research was carried out on a mechanical stand with a movable plate, using recording equipment. Four different grades of asphalt concrete were destroyed. A twofactor experiment was conducted for each brand of material. The horizontal and vertical components of the cutting resistance forces were determined depending on the chip cross-sectional area, the grade of asphalt concrete and the type of cutting element.Results. As a result of the experiment, data were obtained that make it possible to reasonably determine the loads on the working body of the road milling machine. It is proved that the dependence of the cutting resistance forces on the chip cross-sectional area of the cutting element has a nonlinear character. The data obtained allow to comprehensively answer questions concerning the justification of the parameters of road milling machines.Discussion and conclusion. The obtained data allow to develop a mathematical model of the asphalt concrete milling process which will make possible to determine not only the loads on the working body and the energy intensity of the process, but also to reasonably approach the placement of cutting elements on the drum, determine the rational range of equipment operating modes and solve the problems of choosing operating modes depending on the type of asphalt concrete.

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48

Altıntas¸, Y., and P. Lee. "Mechanics and Dynamics of Ball End Milling." Journal of Manufacturing Science and Engineering 120, no. 4 (November 1, 1998): 684–92. http://dx.doi.org/10.1115/1.2830207.

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Mechanics and dynamics of cutting with helical ball end mills are presented. The helical ball end mill attached to the spindle is modelled by orthogonal structural modes in the feed and normal directions at the tool tip. For a given cutter geometry, the cutting coefficients are transformed from an orthogonal cutting data base using an oblique cutting model. The three dimensional swept surface by the cutter is digitized using the true trochoidal kinematics of ball end milling process in time domain. The dynamically regenerated chip thickness, which consists of rigid body motion of the tooth and structural displacements, is evaluated at discrete time intervals by comparing the present and previous tooth marks left on the finish surface. The process is simulated in time domain by considering the instantaneous regenerative chip load, local cutting force coefficients, structural transfer functions and the geometry of ball end milling process. The proposed model predicts cutting forces, surface finish and chatter stability lobes, and is verified experimentally under both static and dynamic cutting conditions.

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Ивченко, Т., T. Ivchenko, А. Михайлов, A. Mikhaylov, Ирина Петряева, and Irina Petryaeva. "Multi-criterion optimization of cutting modes at profiled surface finish turning under conditions of variability in limitations in force." Science intensive technologies in mechanical engineering 2, no. 3 (June 1, 2017): 3–8. http://dx.doi.org/10.12737/24958.

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The paper reports the results in investigations of cutting parameter variability at profiled surfaces turning. The procedure of the multi-criterion optimization of profiled surfaces turning modes taking into account of variability in the limitations in force is presented. The recommendations on choice of optimum cutting modes based on the criteria of productivity, cost price and their compression are shown.

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Timofeev, Dmitriy Yu, Aleksei D. Khalimonenko, and Maria A. Nacharova. "Preliminary Local Thermal Impact as a Surface Quality Assurance Factor." Materials Science Forum 1031 (May 2021): 125–31. http://dx.doi.org/10.4028/www.scientific.net/msf.1031.125.

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The article considers the issues of assuring the quality of the surfaces of machine parts by applying a preliminary local thermal impact before their edge cutting machining. In the zone of application of local thermal impact, a zone of metastable structure with respect to the material of the workpiece to be treated occurs. When the cutting plane intersects with the local thermal application line, the formed flow chip is segmented. The created graphs allow assigning of local thermal modes to the surface of the workpiece before edge cutting machining. Application of preliminary local thermal impact will assure the specified quality of the surface of the treated workpiece at semi-finishing and finishing edge cutting machining modes and stable segmentation of the flow chip.

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Journal articles on the topic 'Cutting modes'

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