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Статті в журналах з теми "Grinding system"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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1

Ohmori, H., Y. Uehara, W. Lin, Y. Watanabe, K. Katahira, T. Naruse, N. Mitsuishi, and S. Ishikawa. "New ELID Grinding Technique for Desk-top Grinding System Based on VCAD Concept(Nanoprecision Elid-grinding (continued))." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2005.2 (2005): 703–8. http://dx.doi.org/10.1299/jsmelem.2005.2.703.

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2

Larshin, Vasily, Natalia Lishchenko, and Jan Pitel. "INTERMITTENT GRINDING TEMPERATURE MODELINGFOR GRINDING SYSTEM STATE MONITORING." Applied Aspects of Information Technology 3, no. 2 (June 10, 2020): 58–73. http://dx.doi.org/10.15276/aait.02.2020.4.

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3

Ke, Xiao Long, Yin Biao Guo, and Chun Jin Wang. "Compensation and Experiment Research of Machining Error for Optical Aspheric Precision Grinding." Advanced Materials Research 797 (September 2013): 103–7. http://dx.doi.org/10.4028/www.scientific.net/amr.797.103.

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Анотація:

According to the demand of precision machining for optical aspheric lens, especially large scale optical aspheric lens, this paper presents an error compensation technique for precision grindging. Based on precision surface grinding machine (MGK7160), grating-type parallel grinding method is put forward to realize grinding paths planning for optical aspheric lens. In order to obtain surface metrology and evaluation after grinding, an on-machine measurement system is built. On the basis of compensation principle, machining error is separated to achieve error compensation. Grinding experiments are carried out and show that it can meet the demand of precision grinding, and the accuacy after error compensation attains 6.5μm.

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4

Nikiforov, Igor, Pavel Maltsev, and Marina Kulakova. "GRINDING WHEEL MONITORING SYSTEM." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 20, 2019): 193. http://dx.doi.org/10.17770/etr2019vol3.4107.

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Анотація:

It has been hypothesized that the change in the micro and macro geometry of the grinding wheel can be determined by a non-contact way by supplying jet of air through the nozzle of a pneumatic-electric-contact converter to the surface of the tool during operation. To confirm this hypothesis an experiment was did on a surface grinding machine. Various samples were machined, that led to self-sharpening of the tool. Grinding wheel monitoring system was developed for the experiments. System includes a device that provides the setting of the necessary working gap between the nozzle and the controlled wheel. A justification is proposed for determining the frequency of grinding wheel grinding during operation by accurately accounting for changes in the state of its surface without stopping the machining process.

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5

Naruse, T., Y. Uehara, H. Ohmori, W. Lin, Y. Watanabe, K. Katahira, S. Ishikawa, N. Mitsuishi, and Y. Yamamoto. "Development of the Micro Tool by the Desk-top ELID Grinding System(Nanoprecision Elid grinding)." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2005.1 (2005): 237–42. http://dx.doi.org/10.1299/jsmelem.2005.1.237.

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6

Zhao, Hong Wei, Yi Ming Qi, Yu Qi Liu, and Shi Hui Pei. "Research on Grinding Control System Design Method Based on Multi-Agent System Model." Advanced Materials Research 694-697 (May 2013): 2125–29. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.2125.

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Анотація:

This paper proposes a Multi-Agent grinding control system model based on the blackboard model and in accordance with the Multi-Agent Systems modeling method . We hierarchical decompose of the grinding control task, establish a grinding control subsystem model, we establish the specific function of each subsystem model and establish a complete multi-Agent grinding control system structure. We establish a Multi-Agent System based on the blackboard model and multi-Agent Communication and Coordination Mechanism. This paper describes the architecture of the control multi-Agent grinding system and its function results in details and designs a blackboard coordination model, the results shared collaborative mechanisms and Multi-Agent collaboration conflict resolution strategies. This system model reduces the difficulty of the operation of the grinding control, multi-Agent collaboration enhance the system's ability to execute, decision-making consultation mechanisms improves the control precision and accuracy of the system.

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7

Kim, Kyeong Tae, Yun Hyuck Hong, Kyung Hee Park, Seok Woo Lee, Hon Zong Choi, and Young Jae Choi. "Development of Ultrasonic Grinding Wheel for Hybrid Grinding System." Journal of the Korean Society for Precision Engineering 30, no. 11 (November 1, 2013): 1121–28. http://dx.doi.org/10.7736/kspe.2013.30.11.1121.

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8

Sha, Zhi Hua, Zong Nan Zhang, and Sheng Fang Zhang. "Research on the Virtual Prototype of Grinding System for Wafer Precision Grinding Machine Based on Mechanical System Mechanics." Applied Mechanics and Materials 164 (April 2012): 330–33. http://dx.doi.org/10.4028/www.scientific.net/amm.164.330.

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Анотація:

In order to decrease the development costs, shorten the developing cycle, improve the overall performance and reduce the environmental pollution of the wafer precision grinding machine, the structure, transmission, movement of grinding system for wafer precision grinding machine is analyzed based on mechanical system mechanics, the three-dimensional model of the grinding system is established, based on frame animation technology and via secondary development of Pro/E in the environment of VS 2008, the virtual prototype of grinding system for wafer precision grinding machine is developed, the kinematics and dynamics simulation of the grinding system is realized.

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9

Liu, Gui Jie, Ya Dong Gong, and Wan Shan Wang. "Intelligent Monitor and Control System for Grinding Process." Key Engineering Materials 304-305 (February 2006): 535–39. http://dx.doi.org/10.4028/www.scientific.net/kem.304-305.535.

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Анотація:

The intelligent monitor and control system for grinding process is proposed in this paper, it utilizes the nonlinear modeling theory and self-learning capability of neural network to setup non-liner mapping relations between grinding conditions and AE signals, and to realize grinding process intelligent monitor and control by picking-up grinding AE signals on line. Grinding quality can be monitored on-line, starting parameters for grinding process can be selected, on-line intelligent adjustment of grinding conditions also can bee realized by using this system.

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10

Kobayashi, Satoshi, Keita Shimada, Chikashi Murakoshi, Kazunori Koike, Masayuki Takahashi, Toru Tachibana, and Tsunemoto Kuriyagawa. "Development of an Ultrasonically-Assisted Electrolytic Grinding System." International Journal of Automation Technology 7, no. 6 (November 5, 2013): 654–62. http://dx.doi.org/10.20965/ijat.2013.p0654.

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Анотація:

Conventional methods of grinding tend to be less efficient and less accurate for circumferential surfaces of smaller inner diameter. To make such grinding highly accurate and highly efficient, we have developed an Ultrasonically-Assisted Grinding Unit (UAG-Unit) by providing ultrasonic assistance to conventional internal grinding. In addition, we have also developed an Ultrasonic and Electrolytic Grinding System (UEGSystem), which incorporates the effects of both ultrasonic vibrations and electrolytic actions into the conventional grinding of parts with small internal diameters and high aspect ratios.

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11

Larshin, Vasily, and Natalya Lishchenko. "Gear grinding system adapting to higher CNC grinder throughput." MATEC Web of Conferences 226 (2018): 04033. http://dx.doi.org/10.1051/matecconf/201822604033.

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Анотація:

The paper is devoted to a solving an important scientific and technical problem of increasing the productivity of defect-free profile gear grinding on CNC machines on the basis of development of on-machine intelligent subsystems for the grinding operation designing, monitoring, and diagnosing which allow grinding system elements adapting to a higher productivity of the CNC grinder. The characteristic of the adaptation principle in manufacturing systems on CNC machines is given in accordance with both the systems and control theories. The productivity resources based on the use of the adaptation principle are studied and identified as well as a methodology is developed for researching the grinding system using scientific methods of modeling, optimization and control. Besides, corresponding technological preconditions are given in the form of a set of purposeful methods and means of innovative profile grinding technology, including grinding stock on-machine measurement and transformation the stock uncertainty into the grinding wheel displacement from the gear to be grinded.

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12

Zhang, Dong, Chao Yun, and Ling Zhang. "Fixture Optimization for Robotic Belt Grinding System." Applied Mechanics and Materials 121-126 (October 2011): 2030–34. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.2030.

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Анотація:

The precision is impacted when the robotic grinding path is discontinuous and the gripper needs to be replaced during manufacturing. In order to solve this problem, a new type PPPRRR grinding robot was proposed. The mathematical model for the robotic grinding paths was set up. The factors including the pose of the workpiece respect to the end joint and the position of contact wheel respect to the robot base frame {O}were analyzed to influence the grinding ability of the system. Base on the Monte Carlo method the posture and position factors above had been optimized, and the grinding ability of the system was increased. The optimization methods were proved right and workable by grinding golf head experiment.

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13

Lee, Hyeon Min, Woo Chun Choi, Chang Rae Cho, and Soon Ju Cho. "Thermal Deformation Analysis of an Orbital Grinding System Grinding Process." Journal of the Korean Society for Precision Engineering 33, no. 7 (July 1, 2016): 595–600. http://dx.doi.org/10.7736/kspe.2016.33.7.595.

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14

Liu, Yung Tien, Bo Jheng Li, Neng Hsin Chiu, and Han Ju Huang. "Development of Data Acquisition System for Examination of Grinding Performance." Materials Science Forum 773-774 (November 2013): 355–64. http://dx.doi.org/10.4028/www.scientific.net/msf.773-774.355.

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Анотація:

In this paper, a data acquisition system was constructed for examining grinding performance of a plunge grinding machine. The system is capable of simultaneously recording power assumption of main spindle, grinding normal force, and material removal of a workpiece. Through grinding experiments for cylindrical workpieces, parameters of grinding process including normal force, power consumption, and time history of diametric error were obtained. With the obtained parameters, the stiffness and time constant of the grinding system were being derived such that the performance of the grinding machine was well evaluated. The configured system described in this paper can be applied to improve grinding performance through further online compensation process.

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15

OHMORI, Shigetoshi, Haruhisa SAKAMOTO, and Shinji SHIMIZU. "Semi-cold-air Supply System for Environmental Impact Reduction and Its Application to Surface Grinding(Grinding technology)." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2005.2 (2005): 641–46. http://dx.doi.org/10.1299/jsmelem.2005.2.641.

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16

Webster, J. A., C. Cui, R. B. Mindek, and R. Lindsay. "Grinding Fluid Application System Design." CIRP Annals 44, no. 1 (1995): 333–38. http://dx.doi.org/10.1016/s0007-8506(07)62337-3.

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17

Choi, T., and Y. C. Shin. "Generalized Intelligent Grinding Advisory System." International Journal of Production Research 45, no. 8 (April 15, 2007): 1899–932. http://dx.doi.org/10.1080/00207540600562025.

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18

Wada, Kenzo, Juniti Hamada, Hirohiko Nakamura, Hiroshi Ito, Atushi Miwa, and Eiji Morimoto. "Optimal Control of Grinding System." Transactions of the Japan Society of Mechanical Engineers Series C 59, no. 560 (1993): 1109–14. http://dx.doi.org/10.1299/kikaic.59.1109.

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19

Yu, Tian Biao, Peng Cheng Su, Jing Qiang Zhang, Peng Guan, and Wan Shan Wang. "A Simulation System for Grinding Based on Virtual Reality." Advanced Materials Research 126-128 (August 2010): 96–100. http://dx.doi.org/10.4028/www.scientific.net/amr.126-128.96.

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Анотація:

A grinding simulation system is developed based on the technology of virtual reality. Simulation theory based on virtual reality is introduced and architecture workflow and operation of the system is studied. With the system, simulation of grinding process of all kinds of materials can be done, influence law of grinding wheel parameters (abrasive grain sizes, bond materials, grinding wheel diameter, etc.) and process parameters (grinding speed, workpiece speed, axial feed workpiece materials, etc.) on machining quality of the workpiece can be analyzed, machining quality can be forecasted and optimization of grinding process parameters can be gained.

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20

Saleh, Tanveer, and Mustafizur Rahman. "A System Development Approach for Electrolytic In-Process Dressing (ELID) Grinding." International Journal of Automation Technology 5, no. 1 (January 5, 2011): 21–29. http://dx.doi.org/10.20965/ijat.2011.p0021.

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Анотація:

This study aims to present the development and performance evaluation of an ultra-precision ELID grinding machine. The machine is a 3-axis machine, including three conventional linear axes (X,Y, andZ). On top, another rotational axis has been included to assist aspheric/spherical lens grinding. In order to introduce intelligence to the machine, several on-machine measuring systems have been developed and incorporated. In ELID grinding, pulsed DC voltage is applied to the metal-bonded diamond wheels to ensure the constant protrusion of sharp cutting grit throughout the grinding cycle. The peak dressing voltage is kept constant irrespective of the wheel sharpness in conventional ELID grinding, which may lead to over dressing of the grinding wheel. The grinding force ratio, also known asKvalue, is an indicator of grit sharpness. In this study, a new approach to wheel dressing is proposed: the peak dressing voltage is varied according to the change in theKvalue during grinding. In conventional ELID grinding, the duty ratio of the dressing power supply is kept constant throughout the grinding cycle. However, this method does not achieve grinding wheel truing, which is very important to maintaining the stability of the grinding. This research work proposes a novel approach to wheel truing by controlling the dressing voltage duty ratio for ELID grinding.

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21

Yu, Ying Liang, Zhan Li Huang, De Qing Yang, and Zhi Yi Miao. "Research on Application of NC Polish-Grinding of Valve Stem and Instantaneous Compensation of Grinding Wheel." Applied Mechanics and Materials 163 (April 2012): 191–95. http://dx.doi.org/10.4028/www.scientific.net/amm.163.191.

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Анотація:

According to the example of using a common grinding and composition of parts processing movement and achievement elements, the design of construction of special NC technologies in ordinary grinding machine was formulated. . The grinding and polish-grinding were performed by using two NC systems in series to achieve multi-axis movement. The function and application scope of NC technology were expanded because the instantaneous compensation of the grinding wheel and the polish-grinding wheel were performed under a rectangular coordinate system and a polar coordinate system by using an open loop NC system. The application of surface recovery of grinding wheel by NC reconstruction and extension applications of processing the track of involute curve were referred.

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22

Yu, Ying Liang, W. M. Li, Zhi Yi Miao, and De Qing Yang. "Research on Application of NC Polish-Grinding of Valve Stem and Instantaneous Compensation of Grinding Wheel." Key Engineering Materials 487 (July 2011): 515–20. http://dx.doi.org/10.4028/www.scientific.net/kem.487.515.

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Анотація:

According to the example of using a common grinding and composition of parts processing movement and achievement elements, the design of construction of special NC technologies in ordinary grinding machine was formulated. . The grinding and polish-grinding were performed by using two NC systems in series to achieve multi-axis movement. The function and application scope of NC technology were expanded because the instantaneous compensation of the grinding wheel and the polish-grinding wheel were performed under a rectangular coordinate system and a polar coordinate system by using an open loop NC system. The application of surface recovery of grinding wheel by NC reconstruction and extension applications of processing the track of involute curve were referred.

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23

Li, Hui, and Fa Ting Zhang. "The Design Study of High-Speed Cylindrical Grinding Machine Transmission System." Applied Mechanics and Materials 251 (December 2012): 143–46. http://dx.doi.org/10.4028/www.scientific.net/amm.251.143.

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Анотація:

In mechanical processing, according to the requirements of components’ high surface quality, this paper makes a structure design of high-speed cylindrical grinding machine transmission system. Such structure is mainly used in high-speed grinding and powerful grinding, so as to improve the grinding efficiency. The design provides a certain basis for the further research of grinding machine structure.

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24

Cao, Jin Ling, and Ying Luo. "Dynamic Analysis in Grinding Head of Roller Grinding Machine." Advanced Materials Research 694-697 (May 2013): 259–62. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.259.

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Анотація:

In the article, the vibration resistance of spindle system in grinding head of roller grinding machine is studied by means of harmonic response and modal analysis, by using the method of the transfer matrix, obtained the first five orders of the natural frequency of spindle system. By studying the M84100A type spindle system in grinding head of roller grinding machine, obtained the conclusion that the natural frequency was far from the work frequency, so laid a foundation of the spindle system dynamic design.

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25

MIZUTANI, Masayoshi, Jun KOMOTORI, Kazutoshi KATAHIRA, and Hitoshi OHMORI. "Surface Properties of Biomaterials (Ti-6Al-4V alloy) Finished by a New ELID Grinding System(Nanoprecision Elid grinding)." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2005.1 (2005): 213–18. http://dx.doi.org/10.1299/jsmelem.2005.1.213.

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26

Lee, Rong-Tsong, Yih-Chyun Hwang, and Yuang-Cherng Chiou. "Dynamic analysis and grinding tracks in the magnetic fluid grinding system." Precision Engineering 33, no. 1 (January 2009): 81–90. http://dx.doi.org/10.1016/j.precisioneng.2008.04.001.

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27

Lee, Rong-Tsong, Yih-Chyun Hwang, and Yuang-Cherng Chiou. "Dynamic analysis and grinding tracks in the magnetic fluid grinding system." Precision Engineering 33, no. 1 (January 2009): 91–98. http://dx.doi.org/10.1016/j.precisioneng.2008.04.004.

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28

Fukuhara, Yoshiya, Shuhei Suzuki, and Hiroyuki Sasahara. "Development of In-Process Monitoring System for Grinding Wheel Surface Temperature and Grinding State." Advanced Materials Research 1136 (January 2016): 624–29. http://dx.doi.org/10.4028/www.scientific.net/amr.1136.624.

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Анотація:

Grinding is a machining technology for plane surfaces and cylindrical surfaces in general. In comparison with cutting, higher accuracy can be provided and it is easier to manufacture high-hardness materials using grinding. However, the grinding wheel surface state changes during grinding, and grazing, clogging and shedding may then lead to problems. As these problems degrade the accuracy and productivity of grinding and the surface integrity of the work material, it is important to select an appropriate grinding condition to avoid the problems. In this study, a novel in-process system for monitoring the grinding wheel surface temperature and grinding state in real time, was proposed. A thermocouple is embedded in the grinding wheel in the developed system. The measured temperature data are transmitted to the external terminal equipment by a wireless transmitter built into the tool shank. Grinding wheel surface temperature was measured on four kinds of grinding wheels using the developed system. As a result, the grinding wheel surface temperature was measured successfully. In addition, it was clarified that the temperature transition largely depends on the grinding state.

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29

Kurfess, T. R., and D. E. Whitney. "Predictive Control of a Robotic Grinding System." Journal of Engineering for Industry 114, no. 4 (November 1, 1992): 412–20. http://dx.doi.org/10.1115/1.2900692.

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Анотація:

This paper describes a modified predictive controller that has been interfaced with the robotic weld bead grinding system currently under development at The Charles Stark Draper Laboratory. The objective of the predictive control in the grinding system is to invert the previously modeled grinding dynamics. This is accomplished via a link between the controller and a grinding simulator that has been developed, based on an exchange of geometric and force data used by both algorithms. The interface utilizes vision data obtained from previous grinding passes to generate a force trajectory used by the robot on the subsequent pass. This trajectory is precomputed by the predictive controller to yield a specific weld bead shape. Due to system limitations, measurement noise, and modelling errors, the beads are not ground perfectly flat. However, their cross sectional area (or height) variations are reduced significantly. Thus, the bead is flattened although not completely.

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30

Tang, Hao, Zhao Hui Deng, Wei Liu, Lin Lin Wan, and Qiao Ping Wu. "Present Research Situation and Future Perspectives of Grinding Process Simulation System." Key Engineering Materials 531-532 (December 2012): 759–64. http://dx.doi.org/10.4028/www.scientific.net/kem.531-532.759.

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Анотація:

Grinding, as the last process of most products, directly affect the machining accuracy and surface quality of the product. Multi-parameter input and output and nonlinear mapping between the parameters of the grinding process play the most important part of computer simulation applied to grinding process. In this paper, the theory of computer simulation was introduced and a detail research on status of grinding process model and grinding process simulation system at foreign and domestic were elaborated, focused on the foreign academic research in this area. In the end, the paper presents an outlook of the research of grinding process simulation system.

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31

Rohith Mervin, Noel, Aravind R, and Bestley Joe S. "PLC based automatic grinding system for door frames." International Journal of Engineering & Technology 7, no. 2.25 (May 3, 2018): 170. http://dx.doi.org/10.14419/ijet.v7i2.25.20500.

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Анотація:

Usually in order to smoothen or flatten any surface we generally prefer grinding process, the grinding process can be done in surface area or metal portion in any possible areas or metal portion in any possible area we want. This research work is on automation, since automation can be done for grinding of door frames. This idea gained inertest is due to the increasing demand of door frames for the customers in huge amount of production rates. There are several methods to grind the door frames either it can be done by humans (man-made), because normally grinding is a process which is being done manually by humans and we also have several methods other than manual grinding techniques. By automation using “programmable logic controllers” (PLC) which can overcome the traditional relay logic controllers, the door frames can be preferably grinded in a fraction of seconds and production rates to gets higher. Since we use (PLC) being the industrial tool, it performs the step-by-step sequence combined by both mechanical and electrical parts. In this paper, the proposed (PLC) based grinding automation is performed and finally compared with the conventional methods being used before grinding process and validated by using real time status obtained.

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32

Li, L. J., Fei Hu Zhang, and S. Dong. "Development of Parallel Grinding System of Aspheric Optics." Key Engineering Materials 339 (May 2007): 365–70. http://dx.doi.org/10.4028/www.scientific.net/kem.339.365.

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Анотація:

The roughness and profiles accuracy of aspheric surface are two key factors affecting the resolution and other characteristics of optical instruments. In this paper a new grinding system-parallel grinding system was built, and an CNC system controlled by PMAC (programmable multi-axis controller) was developed, the parallel grinding system can realize Arc Envelope Grinding Method (AEGM) only through controlling 2-axis and the wear of wheel was diminished, the tool path calculation was simplified. Using this system, the roughness and profile accuracy of aspheric surface are improved.

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33

Cheng, Wei, and Ping Liang. "Design of Automatic Control System of Grinding Zone Temperature in Grinding Hardening." Key Engineering Materials 589-590 (October 2013): 723–28. http://dx.doi.org/10.4028/www.scientific.net/kem.589-590.723.

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Анотація:

The grinding hardening is a new technology which utilized thermal of grinding zone to heat-treat the workpiece surface layer. In grinding hardening process, grinding zone temperature directly affects the quality of surface layer of heat treatment. The high temperature heat pipe is very good device of control heat transfer. In order to make the grinding zone temperature slightly change in grinding process, this paper describes a design of temperature automatic control technology. A high temperature heat pipe contact with the workpiece’s grinding zone. The zone temperature is measured using infrared radiation pyrometer and the temperature data will be used to control the high temperature heat pipe’s thermal resistance through the PID controller. That is that the PID controller will adjust the contact area between workpiece and high temperature heat pipe, thus achieves control of workpiece’s surface hardening requirements.

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34

Li, X. M., and Ning Ding. "Adaptive Fuzzy Neural Network Control System in Cylindrical Grinding Process." Key Engineering Materials 426-427 (January 2010): 220–24. http://dx.doi.org/10.4028/www.scientific.net/kem.426-427.220.

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Анотація:

An adaptive fuzzy neural network control system in cylindrical grinding process was proposed. In this system, the initial cylindrical grinding parameters were decided by the expert system based on fuzzy neural network. Multi-feed and setting overshoot optimization methods were also adopted during the grinding process, and a human machine cooperation system (composed of human and two fuzzy – neural networks) could revise the process parameters in real-time. The experiment of the cylindrical grinding was implemented. The results showed that this control system was valid, and could greatly improve the cylindrical grinding quality and machining efficiency.

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35

Ding, Ning, Chang Long Zhao, Xi Chun Luo, and Jian Shi. "An Intelligent Grinding Wheel Wear Monitoring System Based on Acoustic Emission." Solid State Phenomena 261 (August 2017): 195–200. http://dx.doi.org/10.4028/www.scientific.net/ssp.261.195.

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Анотація:

Acoustic emission (AE) signals can provide tool condition that is critical to effective process control. However, how to process the data and extract useful information are challenging tasks. This paper presented an intelligent grinding wheel wear monitoring system which was embedded in a surface grinding machine. An AE sensor was used to collect the grinding signals. The grinding wheel wear condition features were extracted by a proposed novel method based on statistics analysis of the average wavelet decomposition coefficient. The detailed signal characteristics during different wear condition are described. A BP neural network was used to classify the conditions of the grinding wheel wear. The inputs of the neural network were the three extracted features, and the outputs were three different states of grinding wheel condition, namely primary wear, intermediate wear and serious wear. The intelligent monitoring system was evaluated through grinding experiments. The results indicate that the effectiveness of the proposed method for extracting features of AE signals and developed intelligent grinding wheel wear monitoring system are satisfied.

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36

Xiu, Shi Chao, Jian Liu, Chang He Li, and Guang Qi Cai. "Study on Balance Precision of Ultra-High Speed CBN Grinding Wheel System." Key Engineering Materials 375-376 (March 2008): 614–18. http://dx.doi.org/10.4028/www.scientific.net/kem.375-376.614.

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Анотація:

The balance precision of grinding wheel is a key technical parameter in ultra-high speed grinding process. The actual standard for the balance precision of rigid rotor is not fit for the thin ultra-high speed grinding system well. The unbalance factors affected on the ultra-high speed grinding wheel and its system were analyzed, and its effects on the machining quality in the process were also discussed. The theory and select principle of the balance precision for ultra-high speed grinding wheel system were studied. The test of dynamic performance was performed for the thin ultra-high speed CBN grinding wheel system whose structure was optimized. The groundwork to establish the standard of balance precision for thin ultra-high speed grinding system was offered.

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37

Thomas, D. A., D. R. Allanson, J. L. Moruzzi, and W. Brian Rowe. "In-process Identification of System Time Constant for the Adaptive Control of Grinding." Journal of Engineering for Industry 117, no. 2 (May 1, 1995): 194–201. http://dx.doi.org/10.1115/1.2803294.

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Анотація:

The forces generated during the grinding process cause deflections of the machine-grinding wheel-workpiece system which are large compared to the accuracies required. The deflections cannot be precisely predicted and the optimum grinding conditions vary because the grinding wheel sharpness changes with grinding wheel wear and dressing. In practice conservative machining conditions and feed cycles are used in order to maintain the quality of the finished workpieces. This paper presents a new method of characterizing the time constant of the system from the grinding power consumption during the infeed section of a grinding cycle. Adaptive grinding cycles have been implemented which use the measured value of system time constant to control the target axis position and the dwell time. In this way the control system adapts the machining cycle for the wheel condition at the time of grinding, and can cope with the large variations in deflection that occur when using high feedrates.

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Guan, Jia Liang, Zhi Wei Wang, Li Li Zhu, Zhi De Chen, and Wen Chang Wang. "Exploitation of the ELID Grinding Parameters Expert System." Advanced Materials Research 816-817 (September 2013): 221–26. http://dx.doi.org/10.4028/www.scientific.net/amr.816-817.221.

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This paper introduces the ELID grinding parameters expert system. When we use this system, input machining parameters of the machined material and the requirement of processing precision, then it can speculate ELID grinding process parameters and electrolytic parameters for material. This system has a great practical value for the optimization of ELID grinding process, reducing processing cost and improving efficiency.

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39

Liu, Gui Jie, Ning Mei, and Jun Zhe Tan. "Research on Web Based Remote Monitor and Control System for Grinding Process." Materials Science Forum 532-533 (December 2006): 1112–15. http://dx.doi.org/10.4028/www.scientific.net/msf.532-533.1112.

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Анотація:

A web based remote monitor & control system for grinding process is presented. In this system, OPC/Socket drive technology, CAN bus technology, B/S structure, Java Applet and ActiveX etc. are used to realize the remote monitor & control, and grinding processes in different place can be monitored and controlled by remote grinding expert only through browser, so it overcomes the shortage that the grinding quality depends on skilled workers and variants with grinding operators. The data processing and feature releasing method of AE signals in grinding process also be discussed. The grinding state feature information can be updated automatically, and be browsed by remote experts through running the ActiveX in the browser. Therefore, it is of important significance for improving workers’ working environment and work-piece quality.

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40

Świć, Antoni, Victor Taranenko, Arkadiusz Gola, and Marek Opielak. "Dynamic System of Grinding of Low-Rigidity Shafts." Applied Mechanics and Materials 791 (September 2015): 281–89. http://dx.doi.org/10.4028/www.scientific.net/amm.791.281.

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The paper presents a methodology of building a mathematical model of dynamic system of shaft grinding under the condition of elastic strain, and the model itself. The model was worked out basing on analytical identification. The system of equations and general structural pattern of MM system of dynamic grinding are introduced. Such prepared system of equations and structural pattern of MM takes into account the geometry of machined layer and forces of cutting during the grinding, elastic properties of DS and the process of forming the section of the machined layer (ML). The specification of DS identifying for grinding the small stiffness shafts is shown.

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41

Xu, K.-Z., C.-J. Wei, and D.-J. Hu. "Geometric error compensation of spherical surface grinding system." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 225, no. 4 (April 2011): 473–82. http://dx.doi.org/10.1243/09544054jem1921.

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Kinematics theory for a multi-body system is used to analyse translational joint error, rotational joint error, and quadrature error in a spherical grinding system. A virtual grinding point method is proposed that is based on process features, and the feasibility as well as effectiveness of this method is demonstrated. A volumetric error model of the grinding system is created and the compensation method is coded into a control computer program. A laser interferometer is used to experimentally measure the error both with and without the proposed error compensation scheme. The experimental results validate the proposed approach in that they show that the spherical surface grinding precision is significantly improved.

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42

Onishi, Takashi, Moriaki Sakakura, Naoki Sato, Takuya Kodani, Kazuhito Ohashi, and Shinya Tsukamoto. "Grinding System Reducing the Influence of Thermal Deformation of Workpiece in Cylindrical Grinding." Advanced Materials Research 797 (September 2013): 609–12. http://dx.doi.org/10.4028/www.scientific.net/amr.797.609.

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Анотація:

In cylindrical grinding, a sizing device is generally used to obtain the required dimension. However, the dimensional error can be caused by the thermal deformation of the workpiece even if grinding machine is controlled with the sizing device. To solve this problem, it is necessary to develop the grinding system that can consider the thermal deformation of the workpiece during grinding process. In this study, an advanced grinding system was developed, which can predict the net stock removal of ground workpiece immediately. The grinding experiment is carried out to verify the developed system.

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Wang, Wan Shan, Peng Guan, and Tian Biao Yu. "Thermal-Mechanical Analysis of Hybrid Spindle System Based on FEM." Advanced Materials Research 565 (September 2012): 644–49. http://dx.doi.org/10.4028/www.scientific.net/amr.565.644.

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The deformation of the spindle system is the main factor affecting the accuracy of ultra-high speed grinding. To calculate the deformation of ultra-high-speed grinding spindle system is required to consider not only the formation of structural deformation, but also the thermal deformation. Using the simulation method, oil temperature and grinding force are calculated in this paper. Based on these two factors, the thermal-mechanical deformation of the hybrid spindle system is analyzed and calculated with the method of FEM. the This article uses simulation methods, analysis and calculation of the oil film temperature rise and the grinding force caused by deformation of the liquid and hydrostatic spindle system factors. The methods presented in this paper can be used in digital design of various kinds of spindle systems, in order to improve the accuracy of the spindle system design.

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44

Epureanu, B. I., F. M. Montoya, and C. L. Garcia. "Centerless Grinding Systems Stability." Journal of Manufacturing Science and Engineering 121, no. 2 (May 1, 1999): 157–62. http://dx.doi.org/10.1115/1.2831199.

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In this paper, the steady state dynamics of a centerless grinding machine and work piece has been examined. A model of a centerless grinding system which allows both the deflection of the work piece center and the deformation of the grinding machine frame has been developed. Two instabilities are demarcated • work piece surface generation instability, and • grinding process instability. Both the generation and the grinding stability of self-excited vibrations are investigated. Stability limits are defined using the characteristic equations of the system. The main factors that influence the limit of stability of the machine, and the transversal profile of the work piece have been shown to be • the relative position of the grinding wheel, regulating wheel and support blade of the work piece; • the width of the grinding wheel; • the harmonic response of the grinding machine frame.

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45

Yu, Zhong An, Wei Qin Tan, and Zheng Hua Xie. "The Design of Computer Control System for Grinding-Classification Process." Applied Mechanics and Materials 130-134 (October 2011): 1894–97. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.1894.

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Grinding-classification procedure is the key link of dressing production. This paper briefly introduced the technology of grinding and classification, and designed the computer control system of grinding and classification process, the realization of the grinder concentration control is by variable ratio control and the control of pump pool level is realized by average control, which realized automatic control for the concentration and flow of the grinding and classification, and presented the design of hardware and software for the control system.

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46

Choi, Jeongju. "Optimal Control System of Traverse Grinding." Journal of the Korea Academia-Industrial cooperation Society 13, no. 12 (December 31, 2012): 5704–8. http://dx.doi.org/10.5762/kais.2012.13.12.5704.

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47

Xiao, Guoxian, Stephen Malkin, and Kourosh Danai. "Autonomous System for Multistage Cylindrical Grinding." Journal of Dynamic Systems, Measurement, and Control 115, no. 4 (December 1, 1993): 667–72. http://dx.doi.org/10.1115/1.2899194.

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Анотація:

An optimization strategy is presented for cylindrical plunge grinding operations. The optimization strategy is designed to minimize cycle time while satisfying production constraints. Monotonicity analysis together with local linearization are used to simplify the non-linear optimization problem and determine the process variables for the optimal cycle. At the end of each cycle, the uncertain parameters of the process are estimated from sensory data so as to provide a more accurate estimation of the optimal process variables for the subsequent cycle. The optimization strategy is validated both in simulation and for actual grinding tests.

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48

BRATAN, S. M., A. O. KHARCHENKO, and E. A. VLADETSKAYA. "STOCHASTIC FLAT GRINDING OPERATION CONTROL SYSTEM." Fundamental and Applied Problems of Engineering and Technology 339, no. 1 (2020): 75–82. http://dx.doi.org/10.33979/2073-7408-2020-339-1-75-82.

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49

KOBAYASHI, Satoshi, Masayuki TAKAHASHI, Toru TACHIBANA, Tsunemoto KURIYAGAWA, and Keita SHIMADA. "Ultrasonically-Assisted Electrolytic Internal Grinding System." Journal of the Japan Society for Precision Engineering 80, no. 2 (2014): 146–50. http://dx.doi.org/10.2493/jjspe.80.146.

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50

Hauksdóttir, Anna Soffía, Marianthi Ierapetritou, Sirkka-Liisa Jämsä-Jounela, and Ursula Zühlke. "A DECOUPLING GRINDING CIRCUIT CONTROL SYSTEM." IFAC Proceedings Volumes 35, no. 1 (2002): 49–54. http://dx.doi.org/10.3182/20020721-6-es-1901.01159.

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