COOLING EFFECTIVENESS OF CUTTING FLUID IN CREEP FEED GRINDING

In this study, the heat transfer paths among the grinding fluid, the g rains and the workpiece are investigated for the creep feed grinding. As heat enters the workpiece, the majority of heat is carried away by the fluid. Thus. the cooling effectiveness of the grinding fluid is de fined and calculated through the application of the numerical method t o illustrate how much the fraction of the heat is carried away by the grinding fluid. The results reveal that water has higher cooling effec tiveness than oil. In addition, the cooling effect of the grinding flu id becomes more significant at lower workpiece speed, higher grinding depth and greater wheel speed. (C) 1997 Elsevier Science Ltd.