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Study on Ultrasonic Vibration Grinding Temperature of the Nano-ceramic

Author: WangXing
Tutor: ZhaoBo
School: Henan Polytechnic University
Course: Mechanical Manufacturing and Automation
Keywords: ultrasonic vibiration grinding temperature field nano-ceramic finit element simulation
CLC: TG580.616
Type: Master's thesis
Year: 2009
Downloads: 71
Quote: 0
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Abstract


Ultrasonic vibiration grinding can improve workpiece’s processing quality effectively and been favored of prople. However the impact of the thermal effect of grinding is always an important factor to grinding, so the research of surface temperature and grinding zone’s temperature of ultrasonic assisted grinding has a positive significance.In this paper, a grinding temperature measurement programme and playback programme based on Labview had been designed. According to the contrast experiment of grinding temperature of nano-ceramic in ultrasonic vibiration grinding and common grinding, the impact of grinding parameters to grinding temperature under the ultrasonic vibiration grinding and common grinding had been analysised. The results showed that both in two grinding ways, the grinding temperature increased as the increased of speed of grinding wheel or grinding depth and the decreased of working table speed, the grinding temperature of ultrasonic vibiration grinding is lower than common grinding of 40 C . According to the orthogonal analysis, the empirical formula of grinding temperature in ultrasonic vibiration grinding and common grinding, and the conclusion that the largest impact to grinding temperature is grinding depth had been found. Then a model of grinding temperature field had been made. The subroutine of moving heat source for surface grinding had been composed. Used the finite element analysis software MSC.Marc/Mentat, dynamic simulation of temperature field in nano-ceramic under the ultrasonic assisted grinding and common grinding had been made, and the temperature nephogram of whole test-piece and grinding zone of nano-ceramic in different times had been got. The temperature value had been calculated by the simulation programme with the parameters which used in experiment. Analysis had been done by single-factor analysis and orthogonal analysis, and after the contrast of the simulate results and experiment results, the conclusion that the regular of simulation results was similar with experiment results, but the value of simulation was higher for 6% than experiment had been found. In response to this situation, a detailed analysis for the reasons that caused a discrepancy had been made.

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > Grinding and grinding machine > General issues > Grinding process > General approach > Vibration Grinding
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