Papers by Author: Zhen Tao Shang

Abstract: The grinding temperature in wheel-workpiece contact zone in HSDG of alumina ceramic was measured using the grindable K type thermocouple. Effects of the grinding conditions, including wheel velocity, feed rate and depth of cut, on the temperature were investigated. The results indicate that the grinding temperatures measured under different grinding conditions varied from 100 to 300 °C. The grinding zone temperature exhibits a reasonably linear relationship with the average energy flux, i.e. the higher the energy flux, the higher the corresponding grinding zone temperature will be.

Abstract: This paper focuses on experimental investigation on high speed grinding of 40 Cr steel with vitrified CBN grinding wheel, the effect of grinding process parameters, such as grinding speed, depth of cut, and feed rate, on the grinding force and surface roughness are analyzed The experimental results reveal that the grinding force decreases with higher grinding speed and increases with the addition of depth of cut or feed rate, and the surface roughness is satisfactory in high speed grinding.

Abstract: Electrolytic In-process Dressing (ELID) has been applied in high speed grinding of partially stabilized zirconia. Using a developed electrode system, the ELID effect on a bronze bond diamond wheel was significant. This resulted in a decrease in grinding force, and thus improved the ground surface quality. The improvement of grinding performance was attributed to the good maintenance of wheel sharpness by ELID dressing.