Journal articles: 'Multifunctional machine-tool'

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SUZUKI, Masafumi, Toshiki HIROGAKI, Eiichi AOYAMA, Keiji OGAWA, and Masatoshi IWAMA. "B2 Estimation of Environmental Impact on Desktop-Size Multifunctional Machine Tools by LCA(Advanced machine tool)." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2009.5 (2009): 61–66. http://dx.doi.org/10.1299/jsmelem.2009.5.61.

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Effendi, Riki, Fadwah Maghfurah, and Rudiarto Rudiarto. "Optimization Design of Multifunction Machines For Making 2 Kinds of Animal Feed." Journal of Energy, Mechanical, Material and Manufacturing Engineering 3, no. 2 (December 31, 2018): 99. http://dx.doi.org/10.22219/jemmme.v3i2.7011.

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Optimization design of multifunctional machines for making of animal feed is one of the development efforts of conventional machinery to be a multifunctional machine with electric motor drive which is to help small MSME industries so that their results and capacity are faster and more effective during the process of milling and grinding. This is a new concept designed to increase the time effectiveness of its use. This tool is specifically designed to chop odot grass and grind corn kernels, where the tool works using resources from an electric motor that moves a U-type blade or type I blade for knitting or grinding. The method used to make multifunction machines includes the development of existing models, seeking research on previous tools, refining the design model concept, making 3D models using the Solidworks Computer Aided Design (CAD) with a cycle time of 50 seconds on different test pieces and mills where assembly time is needed to complete the multifunction machine for ± 20 days or 28800 minutes.

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Sugimura, Nobuhiro, Shigeru Ueno, Nozomi Mishima, and Soichi Hachiga. "Design and Evaluation of a New-Type Multifunctional Machine Tool - Functional Requirements and Design -." Journal of Robotics and Mechatronics 9, no. 6 (December 20, 1997): 427–33. http://dx.doi.org/10.20965/jrm.1997.p0427.

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The objective of this research is to develop a new type of flexible and multifunctional machine tool which can be integrated into such manufacturing processes as machining, inspection and the heat treatment of mechanical products. The functional requirements of the multifunctional machine tools were initially analyzed based on a questionnaire given to both the users and the designers of machine tools. The basic configuration of the machine tool is proposed to conform to the functional requirements. The configuration designed has two main spindles, for both the tool and the work, one subspindle, and eight rotational and linear feed axes. All the machining processes of turning, milling, 5-axis machining of sculpted surfaces, grinding, slotting gear shaving and laser processing can be carried out using the proposed machine tool without the need for manual set-ups. A simulation model and a scale model are developed that simulate the manufacturing motion processes and the set-up processes of the machine tool.

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Zivanovic, Sasa, Milos Glavonjic, and Branko Kokotovic. "Development of multifunctional reconfigurable desktop machine tool with hybrid kinematics." Tehnika 70, no. 2 (2015): 261–69. http://dx.doi.org/10.5937/tehnika1502261z.

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Huo, Meng You, Qin He Zhang, Jian Hua Zhang, and Xing Ai. "The Control System Construction of the Multifunctional Combined CNC Machine." Key Engineering Materials 315-316 (July 2006): 566–70. http://dx.doi.org/10.4028/www.scientific.net/kem.315-316.566.

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In this paper we present a multifunctional combined CNC machine that integrates the technology of USM, EDM and grinding. For non-conductive hard and brittle materials, the machine tool could perform ultrasonic machining and grinding machining combined ultrasonic vibration; for conductive hard and brittle materials, electrical discharge with or without ultrasonic vibration could be implemented. Conductive engineering ceramics have been used for elementary experiments, the results show that it is more efficient and more stable for processing this kind of materials by using the multifunctional combined CNC machine. On the basis of brief introduction about the structure of the machine tool, this paper emphasizes the form of control system, the gap state inspection that can be used to ensure the stability in processing and the principle for servo control.

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FUJIOKA, Mikihito, Toshiki HIROGAKI, Eiichi AOYAMA, Keiji OGAWA, and Masatoshi IWAMA. "1315 Development of Small Multifunctional Machine Tool for Cell Production System." Proceedings of Conference of Kansai Branch 2005.80 (2005): _13–29_—_13–30_. http://dx.doi.org/10.1299/jsmekansai.2005.80._13-29_.

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Huo, Meng You, Jin Quan Xu, Jian Hua Zhang, Xing Ai, and Yu Jing Hu. "Development of PMAC-Based Multifunctional Combined CNC Machine." Materials Science Forum 471-472 (December 2004): 830–33. http://dx.doi.org/10.4028/www.scientific.net/msf.471-472.830.

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This paper presents a PMAC-based combined CNC machine that integrates technologies of ultrasonic machining, electrical discharge machining and high speed grinding. As a multifunctional machine, it can provide diverse machining methods for different materials. For hard and brittle materials, it can conduct ultrasonic machining and high-speed grinding respectively or in a combined form; for conductive hard and brittle materials, electrical discharge machining with or without ultrasonic vibration could be implemented. Driven by AC servomotors, the mechanical structure of the vertical machine is mainly composed of a cross workbench for work piece handling, and a spindle head for tool feeding or high speed rotating. Besides those mentioned above, the system management program, the pulse power generator as well as the ultrasonic generator are also analyzed in this paper. Experimental results show that this machine has a wide range of application indeed and is suitable for various materials processing.

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Kudoyarov, R. G., V. L. Zinov, and R. R. Basharov. "Design and Operation of the Motorized Spindle in a Multifunctional Machine Tool." Russian Engineering Research 36, no. 2 (February 2016): 134–37. http://dx.doi.org/10.3103/s1068798x16020143.

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Jia, B. X., Zhen Long Wang, Fu Qiang Hu, Xiao Hai Li, and Wan Sheng Zhao. "Research on Multifunctional Micro Machining Equipment." Materials Science Forum 471-472 (December 2004): 37–42. http://dx.doi.org/10.4028/www.scientific.net/msf.471-472.37.

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To perform several micro-machining on same machine tool, a micro machining equipment was researched and developed. The equipment adopts some high and new technologies. It is equipped with high precision XYZ stage, a spindle with high rotation accuracy and variable rotation speed, a granite worktable, a block electro discharge grinding unit for machining micro rod, a ultrasonic vibration unit for workpiece vibrating, a high frequency pulse power supply for micro-ECM and a video microscopic system with high enlargement factor. The equipment can perform micro electro discharge machining (EDM), micro electrochemical machining (ECM), micro ultrasonic machining (USM) as well as their combination. It can also machine 3D microstructures. A series of experiments were carried out. Using micro-EDM, micro rods with the diameter of less than 5µm were ground on block electrode, micro holes and 3D microstructures were obtained. Shaped holes were machined by using combination of micro-EDM and micro-USM. A micro hole with the diameter of 100µm was machined via micro-ECM.

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SUGIMURA, Nobuhiro, Shigeru UENO, Nozomi MISHIMA, and Soichi HACHIGA. "Design and Evaluation of a New-Type Multifunctional Machine Tool. Functional Requirements and Design." Transactions of the Japan Society of Mechanical Engineers Series C 62, no. 595 (1996): 1133–38. http://dx.doi.org/10.1299/kikaic.62.1133.

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Suda, S., T. Wakabayashi, I. Inasaki, and H. Yokota. "Multifunctional Application of a Synthetic Ester to Machine Tool Lubrication Based on MQL Machining Lubricants." CIRP Annals 53, no. 1 (2004): 61–64. http://dx.doi.org/10.1016/s0007-8506(07)60645-3.

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Li, Guang Hui, Zhen Yu Wang, Guo Peng Liao, and Guang Yu Tan. "Experimental Study on Critical Vibration for the Load of Motion Platform of Linear Servo Motor." Key Engineering Materials 522 (August 2012): 613–17. http://dx.doi.org/10.4028/www.scientific.net/kem.522.613.

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Motorized spindle is an execution unit of machine tool. The rotation of a motorized spindle and the cutting of a machine tool are two vibration sources which will impact the feed system. These vibrations will affect processing quality, cause tools failure and destroy machine stability. The signal analysis in time-domain and frequency-domain for two types of vibrations of execution unit load of linear servo motor were conducted respectively in this work, by employing the BZ7201-USB multifunctional data acquisition instrument. From the analysis, the impact of vibration load to the motion precision of execution unit was obtained. As the load vibration will cause overshoot problem as well, the critical vibration range of motion platform was obtained from a research on system PID parameter adjustment for overshoot problem. The results provide experimental data for further research on servo feed system control.

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KUMANOTANI, Maho, and Keiichi NAKAMOTO. "Complicated workpiece shape machining using optimal target shape position and orientation on a multifunctional machine tool." Journal of Advanced Mechanical Design, Systems, and Manufacturing 12, no. 6 (2018): JAMDSM0111. http://dx.doi.org/10.1299/jamdsm.2018jamdsm0111.

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Li, Xiao Hai, Bei Bei Xue, Shu Ming Wang, and Li Jie Zhao. "Experiments on Electrochemical Micromachining with Ultra-Short Pulse Current." Applied Mechanics and Materials 868 (July 2017): 192–97. http://dx.doi.org/10.4028/www.scientific.net/amm.868.192.

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During electrochemical micromachining (EMM) , materials are removed in the form of ions based on the anodic dissolution mechanism, so it should be a promising technique for micromachining . A new kind of experimental setup of EMM was developed successfully, which is in fact a multifunctional machine tool, and micro-electrode tool can also be fabricated on the same machine tool. The developed experimental setup for EMM consists of feed unit, micro electrode fabrication unit, ultra-short pulse power supply, short circuit detection of machining current and so on. The experiments on micro electrochemical milling (micro EC milling) of typical micro-structure samples by the micro electrode tool rotating like micro milling cutter were carried out. The new feed strategy of micro EC milling was adopted. The comparative process experiments were carried out to explore the machining laws to meet the requirements for micromachining. At optimized parametric combinations, the micro triangle and the micro beam with width of about 50μm were milled on the stainless plate 304 by micro EC milling.

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Li, Xiao Hai, Zhen Long Wang, and Wan Sheng Zhao. "Research on Electrochemical Micromachining System and Related Techniques." Key Engineering Materials 315-316 (July 2006): 731–35. http://dx.doi.org/10.4028/www.scientific.net/kem.315-316.731.

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Electrochemical machining (ECM) has been rarely applied in micromachining because the electric field is not localized. In order to explore the feasibility of applying ECM to micromachining at micro to meso-scale, an experimental setup with precision control over electrochemical micromachining (EMM) was developed, which is in fact a multifunctional machine tool. The micro tool electrodes for EMM can also be fabricated by micro electrical discharge machining (EDM) on the same machine tool. A high-frequency short-pulse micro-energy MOSFET power supply was designed. Lower machining voltage and lower concentration of passivity electrolyte are utilized together to localize dissolution area in EMM. A micro hole 45 ,m in diameter was drilled by EMM on stainless steel foil with 100 μm thickness. A new approach of fabricating microstructures by means of EMM milling using a simple micro tool electrode is proposed, and a shaped hole and a micro cantilever beam with high precision were acquired by EMM milling. The satisfactory process results indicate the potential capability of EMM for higher machining accuracy and smaller machining size.

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Guo, Shi Qing, Li Quan Wang, Shao Ming Yao, and Min Liu. "Research on FBE Grinding Device of Deepwater Multifunctional Pipeline Repair Machinery." Key Engineering Materials 693 (May 2016): 385–94. http://dx.doi.org/10.4028/www.scientific.net/kem.693.385.

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Deepwater pipeline repairing machine (DPRM) is an appropriative equipment which is used to repair damaged deepwater oil and gas pipelines. With the development of deepwater oil and gas exploitation, inventions of such kinds of equipments are urgent priorities. Grinding technology is used in DPRM to remove pipeline anticorrosive coating. It is easy to cut the pipeline excessively when grinding pipeline anticorrosive coating for large orality of deepwater pipelines, which is not conducive to use mechanical connector to seal the pipeline. In order to settle this problem, the rotating compliant mechanism is designed and the grinding tool is steel wire brush. Based on the theory of boundary layer, the underwater rotating mechanical model of grinding tools is established to gain the relationship between grinding drag torque and grinding tool radius, rotational speed, and positive pressure. The grinding experiment gives the effect of structural parameters of steel wire brush on removing anticorrosive coating and indicates that medium density bowl type steel wire brush is the best choice. Finally, the grinding pipeline anticorrosive coating test is completed to verify the rationality of the design of grinding device. These studies provide technical basis for the development of deepwater multifunctional pipeline repair machinery.

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Verbiţchi, Victor, Horia Florin Daşcău, Lia Nicoleta Boțilă, and Radu Cojocaru. "Experiments on Friction Stir Processing (FSP), with Tilted Parent Metal." Key Engineering Materials 890 (June 23, 2021): 95–104. http://dx.doi.org/10.4028/www.scientific.net/kem.890.95.

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Friction stir processing (FSP), with tilted parent metal is a new process, which consists in the use of an inclined base plate with an angle α = 1 - 3 º related to the table of the FSP processing machine, by mounting a calibrated part under one end of the base plate. Two clamping plates are fixed with screws on the base plate, and a sheet (parent metal, PM) or a workpiece is placed between the base plate and the clamping plates. The processing tool has the same tilt angle with respect to the sheet to be processed. Said parts are components of the jig for the process described. The processing tool performs a movement with the speed v(x), correlated with a simultaneous movement with the speed v(z) = v(x) tg α. The correlation is achieved by means of a program developed for the processing machine. Due to the tilt, during the FSP process, the leading edge of the rotating tool shoulder progressively enters the PM, continuously, at the point where the shoulder penetration depth in the PM is minimal. On the multifunctional friction processing machine, MMPF type, the processing by the described process of an aluminium alloy sheet, with the sizes 300 mm x 200 mm x 4 mm was performed. A hardened C45 steel tool was used, having the following technical characteristics: shoulder diameter 14 mm, smooth frusto-conical pin with a large diameter of 2.5 mm, a small diameter of 2.0 mm, and a height of 1.5 mm. The parameters had the following values: tilt angle α = 2° 6'; pin penetration depth h = 1.60 - 1.85 mm; tool speed n = 1500 - 2000 rpm; speed v(x) = 1 - 2 mm / s; speed (software correlated) v(z) = 0.03672181 * (1 - 2) mm / s; the temperature of the sheet behind the tool t = 240 - 420 °C. The appearance of the processed sheet is appropriate. No imperfections are observed. The results are appropriate. The tilted PM brings the following advantages of the process: the mechanical stress to produce burrs and / or chips on the surface of the PM decreases; the way the FSP process is carried out is improved, by reducing gap moving and vibrations; the appearance and mechanical characteristics of the processed areas are improved; the quality level of the executed products rises; wear of processing tools is reduced; energy efficiency increases; the electricity consumption of the machine decreases; productivity increases.

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SEDOV, ALEKSEY. "DEVELOPMENT OF AN INTELLIGENT MACHINE FOR SORTING ANIMALS ACCORDING TO SPECIFIED CRITERIA." Elektrotekhnologii i elektrooborudovanie v APK 4, no. 41 (December 2020): 83–87. http://dx.doi.org/10.22314/2658-4859-2020-67-4-83-87.

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The Federal scientific Agroengineering center VIM has developed technical tools, algorithms and software for the intelligent automatic control system for milking animals “Stimul” on the “Herringbone” milking unit in three versions. The created system does not include automatic selection gates for effective management of zootechnical and veterinary services of animals. (Research purpose) The research purpose is in developing an intelligent machine for automatic sorting of animals for servicing and managing the herd according to specified characteristics. (Materials and methods) The article presents the development of control and management systems in dairy farming based on the conceptual principles of digital transformation. The digital control system is based on a multifunctional panel controller. The created control unit has a port for connecting to the RS 485 network and provides support for network functions via the Modbus Protocol. The programming of the control unit has been made in the SMLogix tool environment, which supports the FBD function block language. (Results and discussion) The article presents an intelligent machine for automatic sorting of animal flows for servicing and managing the herd according to specified characteristics with the unification of hardware, software modules and interface. The article describes the necessary parameters for the automatic remote animal identification system, the basic component of the control system of an intelligent machine for sorting animals according to specified characteristics. (Conclusions) The machine allows to automatically identify, sort and send animals to the specified areas for individual service.

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Popikov, Petr, and Anton Pozdnyakov. "MATHEMATICAL MODEL OF THE INTERACTION OF THE SCREW WORKING BODIES OF FOREST FIRE GROUND-THROWING MACHINES WITH THE GROUND COVER." Forestry Engineering Journal 11, no. 1 (March 30, 2021): 163–71. http://dx.doi.org/10.34220/issn.2222-7962/2021.1/15.

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The paper provides an overview of research on the working processes of screw working bodies of technological machines. It is noted that at present such important issues in the theory of auger working bodies as the required number of auger turns, the required position of the auger spiral in relation to the center, etc. have not been fully resolved, since the solution of these issues can provide an increased productivity of the tool. A structural and technological scheme of a forest fire machine with multifunctional modules is proposed, which consists of auger working bodies, which can be changed modularly with a screw metal thread for a brush, depending on the area and type of soil, the rotor of the thrower, with the ability to drive the cutters-throwers and auger working bodies both from the power take-off shaft of the tractor, and using a hydraulic motor, a guide casing. A mathematical model of an auger working body with a hydraulic drive has been compiled for removing the ground cover with forest litter when extinguishing forest fires with a ground gun, so that combustible materials do not fall into the fire zone together with the soil flow from the rotor-thrower. The working process of the hydraulic drive of the auger working bodies of a forest fire ground-sweeping machine is described by a system of differential equations, including the equations of translational and rotational movements of the auger working body and the equation of the flow rate of the working fluid. The problem of optimization of kinematic and dynamic parameters of auger working bodies of forest fire ground-sweeping machine is set

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Li, Kai-Yun, Raul Sampaio de Lima, Niall G. Burnside, Ele Vahtmäe, Tiit Kutser, Karli Sepp, Victor Henrique Cabral Pinheiro, Ming-Der Yang, Ants Vain, and Kalev Sepp. "Toward Automated Machine Learning-Based Hyperspectral Image Analysis in Crop Yield and Biomass Estimation." Remote Sensing 14, no. 5 (February 24, 2022): 1114. http://dx.doi.org/10.3390/rs14051114.

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The incorporation of autonomous computation and artificial intelligence (AI) technologies into smart agriculture concepts is becoming an expected scientific procedure. The airborne hyperspectral system with its vast area coverage, high spectral resolution, and varied narrow-band selection is an excellent tool for crop physiological characteristics and yield prediction. However, the extensive and redundant three-dimensional (3D) cube data processing and computation have made the popularization of this tool a challenging task. This research integrated two important open-sourced systems (R and Python) combined with automated hyperspectral narrowband vegetation index calculation and the state-of-the-art AI-based automated machine learning (AutoML) technology to estimate yield and biomass, based on three crop categories (spring wheat, pea and oat mixture, and spring barley with red clover) with multifunctional cultivation practices in northern Europe and Estonia. Our study showed the estimated capacity of the empirical AutoML regression model was significant. The best coefficient of determination (R2) and normalized root mean square error (NRMSE) for single variety planting wheat were 0.96 and 0.12 respectively; for mixed peas and oats, they were 0.76 and 0.18 in the booting to heading stage, while for mixed legumes and spring barley, they were 0.88 and 0.16 in the reproductive growth stages. In terms of straw mass estimation, R2 was 0.96, 0.83, and 0.86, and NRMSE was 0.12, 0.24, and 0.33 respectively. This research contributes to, and confirms, the use of the AutoML framework in hyperspectral image analysis to increase implementation flexibility and reduce learning costs under a variety of agricultural resource conditions. It delivers expert yield and straw mass valuation two months in advance before harvest time for decision-makers. This study also highlights that the hyperspectral system provides economic and environmental benefits and will play a critical role in the construction of sustainable and intelligent agriculture techniques in the upcoming years.

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Nim, Evgeniya G. "Deep Mediatization: Rethinking a Figurational Approach." RUDN Journal of Studies in Literature and Journalism 26, no. 4 (December 29, 2021): 664–71. http://dx.doi.org/10.22363/2312-9220-2021-26-4-664-671.

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The article analyzes the possibilities and limitations of the figurative approach to the deep mediatization study, developed by Andreas Hepp and Nick Couldrie. To what extent is figurative theoretical optics sensitive to the processes of social worlds and practices transformation under the media influence? What are the possible directions of revision and further development of this approach? The figurative approach to deep mediatization is a powerful theoretical tool to explore this complex, non-linear meta-process. Focusing on figurations helps to avoid media centrism and emphasize the social life procedurality. At the same time, the figurations concept (understood as collectives, organizations, and institutions) raises some questions. In particular, the thesis about special media ensembles inherent in different figurations does not always work. This is due to the emergence of multifunctional platforms that can become a single digital infrastructure for many figurations. Such platforms have the potential of the ecosystem for a mediatized social life. Further analysis of the relationship between figurations and platforms is required, which does not reduce platforms only to the technological component of figurations. Bridging the deep divide between human actors and technology would also lead to new readings of medialogics (such as human-machine logics).

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de Acutis, Aurora, Carmelo de Maria, and Giovanni Vozzi. "Multimaterial and Multiscale Rapid Prototyping of Patient-Specific Scaffold." Advances in Science and Technology 100 (October 2016): 151–58. http://dx.doi.org/10.4028/www.scientific.net/ast.100.151.

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The majority of strategies used in tissue engineering (TE) employ a scaffold, which is used to guide .the proliferation, the migration and the adhesione of cell in 3D to pruduce an engineered tissue. A new trend in scaffolds’s fabrication is represented by the hybrid Rapid Prototyping technologies. This is a new multimaterial and multiscale fabrication approach which combine the common RP technologies with other micro/nanofabrication techiques to fabricate scaffold that mimick the hetereogenty and hierarchical structure typical of the native extracellular matrix. In this new contest our work present: 1) an innovative device for the fabrication of multi material scaffolds based on an open source FDM 3D printer suitably modified to integrate a multi nozzle deposition tool 2) a design proposal for a multi material and multi scale machine to allow a full control over the modulation of the building materials and of the topography in a scaffold 3) and lastly a CAD workflow to guide the fabrication of RP patient specific scaffolds. Multifunctional hydrogel-based scaffold are fabricated as a demonstration of the validity of the proposed devices. Starting from a clinical case we print a patient-specific scaffold with the aim to recover bone defects at mandibular level as a validation of the proposed CAD process.

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Jiang, Jingchao, and Yongsheng Ma. "Path Planning Strategies to Optimize Accuracy, Quality, Build Time and Material Use in Additive Manufacturing: A Review." Micromachines 11, no. 7 (June 28, 2020): 633. http://dx.doi.org/10.3390/mi11070633.

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Additive manufacturing (AM) is the process of joining materials layer by layer to fabricate products based on 3D models. Due to the layer-by-layer nature of AM, parts with complex geometries, integrated assemblies, customized geometry or multifunctional designs can now be manufactured more easily than traditional subtractive manufacturing. Path planning in AM is an important step in the process of manufacturing products. The final fabricated qualities, properties, etc., will be different when using different path strategies, even using the same AM machine and process parameters. Currently, increasing research studies have been published on path planning strategies with different aims. Due to the rapid development of path planning in AM and various newly proposed strategies, there is a lack of comprehensive reviews on this topic. Therefore, this paper gives a comprehensive understanding of the current status and challenges of AM path planning. This paper reviews and discusses path planning strategies in three categories: improving printed qualities, saving materials/time and achieving objective printed properties. The main findings of this review include: new path planning strategies can be developed by combining some of the strategies in literature with better performance; a path planning platform can be developed to help select the most suitable path planning strategy with required properties; research on path planning considering energy consumption can be carried out in the future; a benchmark model for testing the performance of path planning strategies can be designed; the trade-off among different fabricated properties can be considered as a factor in future path planning design processes; and lastly, machine learning can be a powerful tool to further improve path planning strategies in the future.

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Yang, Peng, and Yi-Min Deng. "Evaluating behavioral process similarity of mechanical products in redesign for functional adaptability." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 12 (February 27, 2016): 2211–22. http://dx.doi.org/10.1177/0954406216631576.

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Functional adaptability makes a product not only multifunctional but also compact in structure and flexible in application. An adaptable-function mechanical product generally demonstrates various degrees of similarity in its behavioral processes for different adaptable functions. Evaluation of this similarity is an important aspect of research for the design of such products, especially for redesigning existing products towards functional adaptability. Until present there lacks research on the design and development of this specific kind of products, including the work on the similarity evaluation of their behavioral processes. To address this problem, this paper investigates the functional and structural characteristics of adaptable-function products first. Based on this, by applying the function-behavior-structure design rationale, a redesign framework of mechanical product for functional adaptability was proposed, and the similarity characteristic of behavioral process was investigated, both on that of the behavior structure and that of behavior characteristics. Furthermore, the paper applied a fuzzy mathematics method for the evaluation of behavioral process similarity, for which a fuzzy comprehensive evaluation model was constructed and the corresponding evaluation method was proposed. Finally, a mini-combined machine tool with adaptable-functions was taken as an example to analyze the behavioral processes and to illustrate the proposed similarity evaluation procedure. The results demonstrated the feasibility and effectiveness of the proposed methodologies.

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Li, Xiao Hai, Li Jie Zhao, Xin Rong Wang, X. Zhang, and Zhen Long Wang. "Research on Micro Electrochemical Machining Based on Multifunction Machine Tool." Materials Science Forum 628-629 (August 2009): 399–404. http://dx.doi.org/10.4028/www.scientific.net/msf.628-629.399.

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The research aims to develop an experimental equipment to carry out in depth research on micro electrochemical machining (micro-ECM). The mechanisms of ultra-short pulse current micro ECM are discussed. As a consequence, lower machining voltage, lower passivity electrolyte concentration, high frequency short pulse power supply and micro rotating tool electrode at high speed have been synthetically used to localize the dissolution area during micro-ECM. The machining gap can be kept at a very small value, and the better resolution of machined shape is achieved by using a novel designed electrode gap control system and the effective utilization of ECM for micromachining is fulfilled. The experiments on microstructure by micro-ECM milling on stainless steel plate are conducted. The micro structures milled on 304 stainless steel foil with 300μm thickness with high precision and high aspect ratio are achieved, and the width of micro beam is about 60μm.

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Anggorowati, Dwi Ana, Nanik AR, Maranatha W, and Dimas Indra Laksmana. "Metode Memperpanjang Masa Simpan Minuman Sari Markisa Dengan Menggunakan Mesin Multifungsi di Kampung Ramqisa." Aksiologiya: Jurnal Pengabdian Kepada Masyarakat 4, no. 1 (December 10, 2019): 86. http://dx.doi.org/10.30651/aks.v4i1.3371.

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ABSTRAK Pertanian di perkotaan yang berlokasi di Kelurahan Rampal Celaket Kecamatan Klojen Kota Malang di wilayah RW I menjadi salah satu lokasi percontohan dimana masyarakat dilingkungan tersebut benar-benar memanfaatkan lahan pekarangan untuk bercocok tanam. Berbagai tanaman sayur dan buah-buahan dibudidayakan dilokasi ini untuk dijadikan produk olahan yang dikomersialkan sehingga bisa menjadi produk unggulan di kampung ramqisa. Dalam memproduksi minuman sari markisa, kendala terbesarnya adalah produk sangat mudah rusak. Kendala ini disebabkan karena mitra tidak memahami bagaimana penanganan produksi dengan baik. Untuk mengatasi hal ini, tim pendamping dari ITN Malang membantu mitra dalam menangani proses pembuatannya, diantaranya adalah memberikan penyuluhan atau pelatihan dalam memproduksi minuman jus markisa. Selain itu, tim membantu dalam hal mengupayakan mesin produksi dengan cara membantu mendesain mesin yang sesuai dengan proses terkontrol. Mesin tersebut adalah Mesin Pemanas dan Pengaduk dan pengemas didesain mampu mengendalikan mikroorganisme penyebab pembusukan dari sari buah markisa dengan cara mengontrol suhu pemasakan, sehingga proses sterilisasi sari buah dapat dicapai. Dalam desain mesin ini, juga dibuat mampu untuk melakukan pengadukan sehingga jus buah tidak terpisah dan jus buah tercampur homogen. Dengan alat multifungsi mampu membuat 20 Liter minuman sari markisa dengan waktu 1 jam/1 tenaga kerja, jadi lebih bisa menghemat waktu jika dibandingkan denga metode lama yang membutuhkan waktu 3 jam/2 tenaga kerja, Masa Simpan : penyimpanan di lemari es bertahan 3 bulan , dan di suhu ruang 1 bulan lebih bagus dari produk sebelumya yaitu penyimpanan di lemari es bertahan 10 hari dan disuhu ruang 2 hari. Kata Kunci: jus markisa; mesin pemanas dan pengaduk; sterilisasi.ABSTRACTAgriculture in urban areas located in Rampal Celaket Subdistrict, Klojen Subdistrict, Malang City in RW I region is one of the pilot locations where the community actually uses the yard to grow crops. Various vegetable and fruit plants are cultivated in this location to be processed products that are commercialized so that they can become superior products in Ramqisa village. In producing passion fruit drinks, the biggest obstacle is that the products are very perishable. This obstacle is caused because the partners do not understand how to handle production properly. To overcome this, a team of assistants from ITN Malang helps partners in handling the manufacturing process, including providing counseling or training in producing passion fruit juice drinks. In addition, the team helped in terms of working on a production machine by helping to design machines that are in accordance with controlled processes. The machine is a heating and stirring machine and the packaging is designed to be able to control the microorganisms that cause decomposition of passion fruit juice by controlling the cooking temperature, so that the sterilization process of fruit juice can be achieved. In the design of this machine, it is also made capable of stirring so that the fruit juice is not separated and the fruit juice is mixed homogeneously. With a multifunctional tool capable of making 20 Liters of passion fruit drinks with an hour / 1 of labor, so it can save more time when compared with the old method which takes 3 hours / 2 of labor, Save Period: storage in the refrigerator lasts 3 months, and at room temperature 1 month better than the previous product that is storage in the refrigerator last 10 days and at room temperature 2 days.Keywords: heating and stirring machines; passion fruit juice; sterilization

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Martinov, Georgi M., Aleksandr B. Ljubimov, Anton S. Grigoriev, and Lilija I. Martinova. "Multifunction Numerical Control Solution for Hybrid Mechanic and Laser Machine Tool." Procedia CIRP 1 (2012): 260–64. http://dx.doi.org/10.1016/j.procir.2012.04.047.

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Chen, Shao-Hsien, and Wun-Syuan Huang. "Prediction of Thermal Deformation of Rotary Table in Multifunction Machine Tool Using Neural Networks." Sensors and Materials 32, no. 3 (March 10, 2020): 859. http://dx.doi.org/10.18494/sam.2020.2598.

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Wang, Tai Yong, Zhi Feng Qiao, Qing Jian Liu, and Miao Hu. "Open CNC System Based on Embedded Monitoring Unit." Advanced Materials Research 136 (October 2010): 284–88. http://dx.doi.org/10.4028/www.scientific.net/amr.136.284.

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Regarding to the requirement of machine tool state monitoring in the functional diversity of CNC system, the prototype of an open CNC system based on embedded monitoring unit is studied and constructed. According to the analyzing of the development status of machine tool state monitoring, an embedded monitoring unit model, which connects with the CNC system through the field bus and can be reconfigured when the monitoring target changed, is set up with the ARM + DSP master-slave architecture, through which the state of machine tools can be accessed by the CNC system. In view of the development trend of open CNC system, a four-layer open architecture reference model is proposed, which will meet the demand for structure adjustment and function expansion. In addition, the key supporting technologies in the system design are also researched, so as to provide a feasible solution for the maintenance and multifunction integration of CNC equipment.

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Amezquita-Garcia, Jose, Miguel Bravo-Zanoguera, Felix F. Gonzalez-Navarro, Roberto Lopez-Avitia, and M. A. Reyna. "Applying Machine Learning to Finger Movements Using Electromyography and Visualization in Opensim." Sensors 22, no. 10 (May 14, 2022): 3737. http://dx.doi.org/10.3390/s22103737.

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Electromyographic signals have been used with low-degree-of-freedom prostheses, and recently with multifunctional prostheses. Currently, they are also being used as inputs in the human–computer interface that controls interaction through hand gestures. Although there is a gap between academic publications on the control of an upper-limb prosthesis developed in laboratories and its service in the natural environment, there are attempts to achieve easier control using multiple muscle signals. This work contributes to this, using a database and biomechanical simulation software, both open access, to seek simplicity in the classifiers, anticipating their implementation in microcontrollers and their execution in real time. Fifteen predefined finger movements of the hand were identified using classic classifiers such as Bayes, linear and quadratic discriminant analysis. The idealized movements of the database were modeled with Opensim for visualization. Combinations of two preprocessing methods—the forward sequential selection method and the feature normalization method—were evaluated to increase the efficiency of these classifiers. The statistical methods of cross-validation, analysis of variance (ANOVA) and Duncan were used to validate the results. Furthermore, the classifier with the best recognition result was redesigned into a new feature space using the sparse matrix algorithm to improve it, and to determine which features can be eliminated without degrading the classification. The classifiers yielded promising results—the quadratic discriminant being the best, achieving an average recognition rate for each individual considered of 96.16%, and with 78.36% for the total sample group of the eight subjects, in an independent test dataset. The study ends with the visual analysis under Opensim of the classified movements, in which the usefulness of this simulation tool is appreciated by revealing the muscular participation, which can be useful during the design of a multifunctional prosthesis.

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Wang, Zhen Long, Bao Guo Zhu, Wei Liang Zeng, and Li Zhong Sun. "Study on the Influence Factors of Electrochemical Micromachining." Key Engineering Materials 364-366 (December 2007): 903–8. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.903.

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There are many influence factors of electrochemical micromachining (EMM) development. So the characteristics of EMM technology were analyzed firstly. It was an effective method that the nanosecond pulses voltage was used in EMM, and the nanosecond pulses voltage was prepared to solve the problems of machining area, using small gap, and machining micro 3D structure. Its minimum pulse duration is 5ns, and its voltage, current, and duty ratio can be changed freely. Moreover, many experiments of EMM were carried into execution. After the phenomenon and results of the experiments were analyzed, the reformative project of experiment was put forward. The feasibility of the project and technique route was testified correctly by the nanosecond pulses voltage on the multifunction machine tool which was manufactured independently. After studying on the influences of EMM technology, the experiences of EMM process will be enriched and make EMM have a further development.

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Hoecker, Douglas G., Kevin M. Corker, Emilie M. Roth, Melvin H. Lipner, and Marilyn S. Bunzo. "Man-Machine Design and Analysis System (MIDAS) Applied to a Computer-Based Procedure-Aiding System." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 38, no. 4 (October 1994): 195–99. http://dx.doi.org/10.1177/154193129403800402.

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Difficult issues in design criteria confront the designers of human—computer interaction (HCI) implementations for future power plant control rooms. Such HCI-intensive control—room elements include “soft” controls and displays, computerized procedures, alarm presentations, and support for cooperative information—sharing among crewmembers. This shift in technology, from dedicated controls and displays in fixed locations to multifunction computer—driven operator workstations and wall displays, must focus not only on the required functionality of these interfaces, but also on their crafting and integration in such a way as to minimize the likelihood of operator error. With the objective of providing early insight into the cognitively error—prone consequences of selected interface dynamics, we are adapting a computer—based cognitive modeling tool, the Man—machine Integrated Design and Analysis System (MIDAS), to quantitatively model certain user requirements for operating different types of interfaces while dealing with high—consequence events in a control room setting. MIDAS was conceived and is being developed as a joint Army/NASA program at the NASA Ames Research Center to test different design approaches to computerizing the cockpits of advanced commercial and military aircraft. This report presents preliminary results from a project to adapt the MIDAS tool to the nuclear control room domain. These results have enabled comparative observation of cognitive loading depending on whether a supervisor uses computerized procedures or paper procedures to direct crew response to a plant trip event. The results suggest that each technology for procedural support, in its current respective implementation, has its own strengths and weaknesses at different points in the control task dialog.

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Tu, Q., Y.-M. Deng, AYC Nee, and WF Lu. "Functional upgrading fundamental and performance upgrading priority ranking of adaptable-function products." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 6 (July 19, 2018): 2135–48. http://dx.doi.org/10.1177/0954406218780518.

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Excellence in function and performance is one of the key reasons for a product to sustain its market competitiveness. Upgrading of products, including those of the adaptable-function products, is necessary to ensure their market attractiveness. Current research that is specifically on upgrading of adaptable-function products is lacking. To this end, this paper attempts to study both functional aspect and performance aspect of upgrade design of this kind of products. For the former, the study focuses on some fundamental issues of functional upgrading relevant to the upgrading type, where an analogy-based functional upgrading strategy is proposed. The proposed work is illustrated by the functional upgrading of an electric drill design case. For the latter, the study focuses on how to evaluate the upgrading priority, for which a number of performance attributes to be upgraded are specified. For this purpose, the technology potentials for enabling the upgrade design (which should be maximized) and the influence caused by the upgrading (which should be minimized) are first studied. Based on technology potentials and upgrading influence, the priority ranking is evaluated to help the designer making performance upgrading decisions. Finally, a case study of upgrading a multifunction machine tool is presented, which demonstrates the feasibility of the proposed evaluation method. With the help of the established upgrading design prototype and the strategy of upgrading priority ranking guidelines, the designers can get the relevant design support during their upgrade design process.

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Lee, Sungcheul, and Jong-Kweon Park. "Experimental Verification of Dynamic Behavior of a Capsule-Type Modular Machine Tool for Multifunctional Processes." Journal of Manufacturing Science and Engineering 140, no. 1 (November 16, 2017). http://dx.doi.org/10.1115/1.4037999.

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A capsule-type modular machine tool was developed, which was capable of multifunctional processes with a single setup. This mechanism was designed according to the concept of a reconfigurable machine tool (RMT), which can transform from a machining center to a lathe, and is capable of multiple functional processes, such as laser, milling, and grinding processes. After addressing the kinematics of the machine, a static structural analysis was performed and some ribs were added to enhance the stiffness. A frequency response function (FRF) simulation was conducted on the modified machine and natural frequencies were determined to avoid resonance in processing. Then, an FRF test was performed to find the actual natural frequencies, to confirm the simulation results. After investigating the natural frequencies, high-speed machining was performed to make 300 μm sized patterns.

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Comak, Alptunc, and Yusuf Altintas. "Dynamics and Stability of Turn-Milling Operations With Varying Time Delay in Discrete Time Domain." Journal of Manufacturing Science and Engineering 140, no. 10 (July 27, 2018). http://dx.doi.org/10.1115/1.4040726.

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Turn-milling machines are widely used in industry because of their multifunctional capabilities in producing complex parts in one setup. Both milling cutter and workpiece rotate simultaneously while the machine travels in three Cartesian directions leading to five axis kinematics with complex chip generation mechanism. This paper presents a general mathematical model to predict the chip thickness, cutting force, and chatter stability of turn milling operations. The dynamic chip thickness is modeled by considering the rigid body motion, relative vibrations between the tool and workpiece, and cutter-workpiece engagement geometry. The dynamics of the process are governed by delayed differential equations by time periodic coefficients with a time varying delay contributed by two simultaneously rotating spindles and kinematics of the machine. The stability of the system has been solved in semidiscrete time domain as a function of depth of cut, feed, tool spindle speed, and workpiece speed. The stability model has been experimentally verified in turn milling of Aluminum alloy cut with a helical cylindrical end mill.

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Zuo, Qiyang, Kai He, Xiaobing Dang, Wei Feng, and Ruxu Du. "A Novel Incremental Sheet Bending Process of Complex Curved Steel Plate." Journal of Manufacturing Science and Engineering 139, no. 11 (September 13, 2017). http://dx.doi.org/10.1115/1.4037428.

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Bending complex curved steel plates for constructing ship hull has long been a challenge in shipbuilding industry. This paper presents a novel incremental bending process to obtain complicated curved steel plates by a series of sequential and layered punches. Taking advantage of this process, the blank plate that is fixed and held by a flexible supporting system can incrementally be bent into the target shape by a press tool along a planned tool path step by step and layer by layer. Acting as a “lower die,” the flexible supporting system can provide flexible and multifunctional supports for the work piece during the forming process, whose four general motion modes are demonstrated in this paper. Meanwhile, the procedures of tool path planning and forming layering are also explained in detail. In addition, aiming at different motion modes of the flexible supporting system, two springback compensation methods are given. Furthermore, according to the forming principle presented in this paper, an original incremental prototype equipment was designed and manufactured, which is mainly composed of a three-axis computer numerical control (CNC) machine, a flexible supporting system, and a three-dimensional (3D) scanning feedback system. A series of forming experiments focusing on a gradual curvature shape were carried out using this prototype to investigate the feasibility and validity of this forming process.

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Journal articles on the topic 'Multifunctional machine-tool'

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