Academic literature on the topic 'Multipoint cutting tool'
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Journal articles on the topic "Multipoint cutting tool"
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Sarwar, Mohammed, and Julfikar Haider. "Development of Advanced Surface Engineering Technologies for the Benefit of Multipoint Cutting Tools." Advanced Materials Research 83-86 (December 2009): 1043–50. http://dx.doi.org/10.4028/www.scientific.net/amr.83-86.1043.
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The benefits of applying advanced coatings on both single point and multipoint cutting tools such as improvement of productivity, tool life, machined surface quality etc. have been realised by the surface engineering researchers [1], commercial coaters [2-4] and end users [5]. The demand for advanced coatings in cutting tool industries is continually growing to meet the challenges of high speed machining, dry machining, near net-shape machining, machining of hard-to-cut materials etc.. Advanced coatings with excellent properties on flat coupon in a laboratory deposited by modern deposition technologies should not be taken for granted in improving the performance of complex shaped cutting tools [6] in aggressive cutting environments. This is because the end performance of coated cutting tools is not only dependant on the coating itself but also on the tool substrate material, geometry, surface finish and cutting edge conditions prior to coating deposition. The paper presents case studies with examples of successes and failures of advanced coatings on different multipoint cutting tools (e.g., milling cutters, bandsaws, circular saws, holesaws etc.). The future strategy for developing successful coating technology for cutting tools should be directed towards adopting a systems approach to bridge the communication gap amongst the cutting tool manufactures, tool coaters and end users.
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Maksarov, V. V., A. D. Khalimonenko, and K. G. Matrenichev. "Stability analysis of multipoint tool equipped with metal cutting ceramics." IOP Conference Series: Earth and Environmental Science 87 (October 2017): 082030. http://dx.doi.org/10.1088/1755-1315/87/8/082030.
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Nagaraj, Meenaskshi Sundaram, Chakaravarthy Ezhilarasan, A. John Presin Kumar, and Rishab Betala. "Analysis of multipoint cutting tool temperature using FEM and CFD." Manufacturing Review 5 (2018): 16. http://dx.doi.org/10.1051/mfreview/2018013.
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Nimonic C-263 is a British nickel–chromium–cobalt–molybdenum alloy specially meant to be used in high-temperature and high-strength applications. Consequently, it produces high thermo-mechanical loads on the machining tool when machined. As a result, excessive heat is generated during dry drilling, between Nimonic C-263 and tungsten carbide tool coated with Alcorna, which in turn reduces the durability of the tool. In order to determine the temperature distribution of the tool, the coupling of finite element machining simulations along with computational fluid dynamics simulations is performed. The temperature distribution of the tool under dry condition is simulated via the DEFORM 3D software and the Altair AcuSolve software. Further investigation under cooling condition is performed using Altair AcuSolve software. The mass flow rate of the coolants is kept constant when the temperature distribution is obtained during the CFD analysis under cooling condition. Silver nano coolant has high heat reduction compared to other coolants and is found to generate 34% less heat than dry condition.
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Ravikumar, S., and K. I. Ramachandran. "Tool Wear Monitoring of Multipoint Cutting Tool using Sound Signal Features Signals with Machine Learning Techniques." Materials Today: Proceedings 5, no. 11 (2018): 25720–29. http://dx.doi.org/10.1016/j.matpr.2018.11.014.
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Sarwar, Mohammed, Mike Dinsdale, and Julfikar Haider. "Development of Advanced Broaching Tool for Machining Titanium Alloy." Advanced Materials Research 445 (January 2012): 161–66. http://dx.doi.org/10.4028/www.scientific.net/amr.445.161.
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Broaching is a precision multipoint metal removal operation normally employed for manufacturing variety of complex parts having either internal or external features. Broaching can produce high precision and good surface finish at a high metal removal rate. The unique feature of a broach tool is that the feed/depth of cut for the teeth is built into the broach unlike other cutting tools. The tool design (e.g., rise per tooth and tooth geometry) play a vital role in the broach performance. A specially adapted machine tool modified to investigate a single broach tooth has been used. Cutting forces and material removal rate have been measured during experimental work for different combination of broaching parameters and broach tool geometry. The effect of the parameters on the surface quality produced has been established. The characteristics of chips formed have also been defined. Finally, optimum tooth geometry and rise per tooth have been recommended for tool performance, broached surface quality and efficient chip formation. The information provided in this paper will be beneficial for broach tool designers and manufacturing engineers.
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Bhatia, Anmol, Anmol Jatwani, and Arpit Nalwa. "Design of Multipurpose Wood Working Machine." International Journal of Advanced Engineering Research and Applications 5, no. 01 (May 31, 2019): 46–49. http://dx.doi.org/10.46593/ijaera.2019.v05i01.006.
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This paper aims to present a model of a machine that can perform multiple operations on wood which is efficient and reliable than machines that already exist. The paper can help the common man, the daily worker, the carpenter that toils away by providing him with a tool at his disposal that can save his time, money and labor. The multipurpose wood working machine is unique in the manner that it utilizes a single multi-point tool to conduct all its operations and is operated by a single motor to save energy. The multipoint tool not only replaces multiple other tools but also saves energy by utilizing a single motor as compared to multiple motors which would be required if there were multiple tools. This also decreases the area the machine will take up making it more portable and lighter. By utilizing a single tool, there is an increase in the safety of the machine, as multiple tools mean multiple hazards. The tool will function in a manner similar to a routing machine. It is fixed in a module which holds it perpendicular to the vice which will be holding the work piece. The tool can transverse in all three directions using sleeves which are wrapped around threaded rods. Actuator motors then inhibit motion in all 3 dimensions using a control board. By doing so, the multipoint tool can work to its full potential and perform various multiple operations such as cutting, planning, drilling and slotting.
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Masmiati, N., H. S. Chan, Ahmed A. D. Sarhan, M. A. Hassan, and M. Hamdi. "Investigating the Possibility to Reduce the Residual Stress Level in 2.5D Cutting Using Titanium Coated Carbide Ball End Mill." Advances in Materials Science and Engineering 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/485267.
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End milling is a multipoint cutting process in which material is removed from a workpiece by a rotating tool. It is widely used in cutting 2.5D profiles such as point-to-point, contouring, and pocketing operations. 2.5D machining possesses the capability to translate in all 3 axes but can perform the cutting operation in only 2 of the 3 axes at a time. This study focuses on optimizing the cutting parameters, such as machined surface inclinationangle, axial depth of cut, spindle speed, and feed rate for better surface integrity, namely, microhardness, residual stress, and microstructure in 2.5D cutting utilizing a titanium-coated carbide ball end mill. An optimization method known as Taguchi optimization, which includes planning, conducting, and analyzing results of matrix experiments, was used in order to achieve the best cutting parameter level. Data analysis was conducted using signal-to-noise (S/N) and target performance measurement (TPM) response analysis and analysis of variance (Pareto ANOVA). The optimum condition results obtained through analysis show improvements in microhardness of about 0.7%, residual stress in the feed direction of about 18.6%, and residual stress in the cutting direction of about 15.4%.
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Liu, Xiaoxu, Xianlong Ni, Osamu Konda, Hiroko Furuhashi, Satoru Maegawa, and Fumihiro Itoigawa. "Clarification of the Mechanism of Pulse Laser Grinding of Nanosecond Lasers Using High-Speed Camera Imaging." Machines 10, no. 3 (March 8, 2022): 196. http://dx.doi.org/10.3390/machines10030196.
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Pulse laser grinding (PLG), as a cutting tool processing method, can not only achieve edge sharpening with high precision, but it can also produce surface modification. For example, polycrystalline cubic boron nitride (PCBN) tools processed by PLG can show increased hardness due to the reduction in defects. However, the mechanism of edge formation under PLG processing remains unclear. In this study, by observing the plasma generated during processing using a high-speed camera, the elementary process for each laser pulse of the PLG process was visualized. The plasma luminescence moved successively through four stages: multipoint luminescence, uniform luminescence, the downward movement of the luminous center, and faint luminescence. By comparing the results of three different laser pulse pitches (0.2, 2, and 20 μm), it was found that the pulse pitch had a significant influence on the PLG processing mode. When the pulse pitch was too small, the sidewall effect was likely to lead to local excess machining. The large pulse pitch resulted in processed surfaces that could not be fully covered by laser irradiation, and it was preferred to remove the decrease threshold subsequently. Thus, the moderate pulse pitch condition showed a superior processed surface compared to the others.
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Borse, Swati V., and D. M. Patel. "Comparative structural Analysis of Acme and Square thread Screw jack using Autodesk Inventor." International Journal on Recent and Innovation Trends in Computing and Communication 7, no. 6 (June 26, 2019): 39–43. http://dx.doi.org/10.17762/ijritcc.v7i6.5321.
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A screw jack is a device used to lift the vehicle above the ground level in order to ease repairs. A power screw is designed to translate radial motion to linear motion. Many users are familiar with manually operated car jack which still included as standard equipment in cars. A car jack is an important device in vehicle to change flat tire in our journey. Every year near about 160 injuries are associated with car jacks. The correct use of jacks can prevent the accidents and injuries. Improvement in Design of car jack is really important to make the tool more efficient and user friendly with high safety features. The objectives of this paper is to critically analyze and compare between ACME and SQUARE threads from stress and strain perspective in order to improve the performance from safety and durability point of view for developments in the field of thread design. In this paper selection of two different types of screw threads namely Square and Acme threads. The square threads are named after their square geometry. They are the most efficient power screw, but also the most difficult to machine, thus most expensive. The Acme threads are machining with multipoint cutting tool on thread milling machine, it is an economical operation. Acme threads have more thickness at core diameter than of Square threads therefore a screw with Acme threads is stronger than equivalent screw with Square threads.
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JAYSWAL, S. C., V. K. JAIN, and P. M. DIXIT. "MAGNETIC ABRASIVE FINISHING PROCESS — A PARAMETRIC ANALYSIS." Journal of Advanced Manufacturing Systems 04, no. 02 (December 2005): 131–50. http://dx.doi.org/10.1142/s0219686705000655.
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Magnetic Abrasive Finishing (MAF) is one of the non-conventional finishing processes, which produces a high level of surface quality and is primarily controlled by magnetic field. In MAF, workpiece is kept between the two poles (N and S) of a magnet. The working gap between the workpiece and the magnet is filled with magnetic abrasive particles. A magnetic abrasive flexible brush (MAFB) is formed, acting as a multipoint cutting tool, due to the effect of magnetic field in the working gap. This paper deals with theoretical investigations of the plane MAF process to know the effect of the process parameters on the surface quality produced. The magnetic field is simulated using finite element model of the process. The magnetic field is also measured experimentally to validate the theoretical results. A series of numerical experiments are performed using the finite element and surface roughness models of the process to study the effect of flux density, height of working gap, size of magnetic abrasive particles and slots (size and location) in the magnetic pole on the surface quality. Based on the results, it is concluded that surface roughness value (R max ) of the workpiece decreases with increase in flux density and size of magnetic abrasive particles. Surface roughness value (R max ) decreases with decrease in working gap. R max value also decreases when the magnet has a slot as compared to the magnet having no slot. Present study would help in understanding the effect of the various parameters on surface roughness value without doing a number of real-life experiments.
Dissertations / Theses on the topic "Multipoint cutting tool"
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GOBBER, FEDERICO SIMONE. "Development of innovative TCT saw blades for high speed cutting of metallic alloys." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2711640.
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The subject covered in this thesis concerns the development of an innovative PVD coated multipoint cutting tool with cemented carbide brazed inserts for high-speed cutting of ferrous alloys. The aim of the research was to optimize the properties of the constituent materials in order to maximize their durability and provide a constant level of surface finishing of the machined parts. Fast cutting technologies are nowadays spreading because of the high productive rate that they guarantee, but on the other side wear is more severe with high speed cutting. Tungsten Carbide Tipped (TCT) saw blades are typically used in wood cutting but since 30 years are gradually taking the place of traditional band saws due to the higher cutting speed that are possible to reach and thanks to a better surface finishing on machined surfaces. The research work that was part of an industrial project was divided into three steps:
1. characterization of cemented carbide grades for application in machining
2. optimization of the cutting geometry
3. development of a tailored CAE – PVD coating.
The first part of the research work involved the study of literature in order to define the most suitable grades of cemented carbide for experimentation and to define some possible coating composition and architectures. Both plain grades and mixed grades with secondary Ti and Ta carbides were chosen, the relations among hardness, toughness, grain size and wear resistance were investigated through microstructural and mechanical characterization; finally discs made of cemented carbide were tested against pins of steel to characterize the resistance to sliding wear. From this characterization a mixed grade cemented carbide with 12% cobalt binder and micrometric grain size was chosen due to the best toughness properties shown from characterization. Saw blades work under interrupted cutting conditions so toughness was required as the most important feature. In the second part of this study the cutting geometry of the cemented carbide inserts was optimized via experimental cutting tests and CAE methods. After a set of benchmark cutting tests on an industrial sawing station, the experimental cutting forces were calculated analytically and than used to calibrate a FEM 2D numerical calculation model. Two cutting geometries were then tested among those simulated: -15° and -25° rake angles. Thanks to the use of an hard metal with increased toughness (KIC> 15 MPa), a tool with a rake angle of -15 ° has been designed to guarantee lower cutting forces (less than 90 N in the first cuts), friction and temperature on the surface of the tool’s rake face (Figure 1). By experimental validation of the simulated geometries the cutting model gained predictive power. In the second phase of the work, three CAE - PVD coatings of the Al - Ti - Cr - N system were studied. Two of them were monolayer and one multilayer. The aim of this part of the work was to investigate the mechanical and microstructural properties of the analyzed coatings using different experimental methods to describe their behavior. The coatings were characterized not only from the mechanical point of view (hardness, toughness and adhesion) but also from the morphological (defective), and microstructural point of view. From the tests carried out, a multi-layered coating with improved toughness for use in interrupted cutting was designed.
Book chapters on the topic "Multipoint cutting tool"
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Gobber, Federico Simone, Elisa Fracchia, and Mario Rosso. "Wear Characterization of Cemented Carbide Multipoint Cutting Tool Machining AISI 4140 at High Cutting Speed: Criteria for Materials Selection." In TMS 2019 148th Annual Meeting & Exhibition Supplemental Proceedings, 711–18. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05861-6_69.
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"High Speed Steels." In Tool Steels, 251–90. 5th ed. ASM International, 1998. http://dx.doi.org/10.31399/asm.tb.ts5.t65900251.
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Abstract High-speed tool steels have in common the ability to maintain high hardness at elevated temperatures. High speed steels are primarily used for cutting tools that generate heat during high-speed machining. They are designated as group M or group T steels in the AISI classification system, depending on whether the major alloying approach is based on molybdenum or tungsten. This chapter describes the effects of each of the alloying elements and carbon content on the processing, microstructures, and properties of high-speed steels. It discusses the processes involved in the solidification, hot work, annealing, austenitizing for hardening, and tempering of high-speed steels. It also discusses the processes involved in controlling grain size during austenitizing and reviews the characteristics of cooling transformations and other property changes in tempered high-speed steels. Information on multipoint cutting tools is provided. The chapter discusses the applications of high-speed tool steel and factors in selecting high-speed tool steels.
Conference papers on the topic "Multipoint cutting tool"
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Haber, Rodolfo E., Rodolfo Haber-Haber, Angel Alique, and Agusti´n Jime´nez. "Fuzzy Logic Based Drilling Force Control in a Network-Based Application." In ASME 2007 International Manufacturing Science and Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/msec2007-31039.
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In order to improve efficiency of high-performance drilling processes while preserving tool life, the current study focuses on the design and implementation of an optimal fuzzy-control system for drilling force. The main topic of this study is the design and implementation of a networked fuzzy controller. The control algorithm is connected to the process through a multipoint interface (MPI) bus, a proprietary programming and communication interface for peer-to-peer networking that resembles the PROFIBUS protocol. The output (i.e., feed-rate) signal is transmitted through the MPI; therefore, network-induced delay is unavoidable. The optimal tuning of the fuzzy controller using a maximum known delay is based on the integral time absolute error (ITAE) criterion. In this study, a step in the force reference signal is considered a disturbance, and the goal is to assess how well the system follows set-point changes using the ITAE criterion. The main advantage of the approach presented herein is the design of an optimal fuzzy controller using a known maximum allowable delay to deal with uncertainties and nonlinearities in the drilling process and delays in the network-based application. In order to suppress the cutting-force increase, the feed rate is decreased gradually as the drilling depth increases, and the cutting force is quite well regulated at the given setpoint. The good transient response is verified by improvements in the integral time absolute error (11.77), integral time square error (2.912) and integral of absolute error (12.81) performance indices. Moreover, the experimental results without oscillations and overshoot corroborate that increases and fluctuations in force drilling can be suppressed despite an increase in drilling depth. Thus, the drilling process can be stabilized and the risk of drill failure can be greatly reduced through a fuzzy-control system.
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Haber, Rodolfo E., Rodolfo Haber-Haber, Angel Escribano, and Javier Escribano. "Networked Fuzzy Control System for a High-Performance Drilling Process." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34538.
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In order to improve drilling efficiency while preserving tool life, the current study focuses on the design and implementation of a simple, optimal fuzzy-control system for drilling force. The main topic of this study is the design and implementation of a networked fuzzy controller. The control system consists of a two-input (force error and change of error), single-output (feed-rate increment) fuzzy controller. The control algorithm is connected to the process through a multipoint interface (MPI) bus. The output (i.e., feed-rate) signal is transmitted through the MPI; therefore, network-induced delay is unavoidable. The optimal tuning of the fuzzy controller using a maximum known delay is based on the integral time absolute error (ITAE) criterion. The main advantage of the approach presented herein is the design of a simple fuzzy controller using a known maximum allowable delay to deal with uncertainties and nonlinearities in the drilling process and delays in the network-based application. The results demonstrate that the proposed control strategy provides an excellent transient response without overshoot and a slightly higher drilling time than the CNC working alone (uncontrolled). Therefore, the fuzzy-control system reduces the influence of the increase in cutting force and torque that occurs as the drill depth increases, thus eliminating the risk of rapid drill wear and catastrophic drill breakage.