Hosted by www.Geocities.ws

Abstract

The objective of this part of the series research is to investigate the correlation between the thermal residual stresses and conditions of surface grinding. The heat generated in grinding was modelled by a moving band heat source with a triangular profile. The effect of a coolant was simulated by heat convection. To obtain a reliable figure of thermal residual stresses induced by grinding, temperature-dependent properties of work materials were taken into account and a non-uniform convection model with an effective cooling factor was introduced. A thorough analysis using the finite element method showed that the predictions based on the temperature-independent properties always underestimate thermal deformation, that the effective cooling factor in the grinding zone should be maintained beyond a critical value, and that the Peclet number has a significant effect on the selection of critical grinding conditions. The paper offers an insight into the mechanism understanding of thermal residual stresses induced by surface grinding.

Corresponding author. Author t whom correspondence should be addressed.

Hosted by www.Geocities.ws