STRUCTURAL-TECHNOLOGICAL METHODS FOR REDUCTION OF THERMAL STRESS IN GRINDING

A study has been made of temperature fi elds occurring in a workpiece in the process of its fl at grinding. The author has obtained relations making it possible to calculate the rate of heating and cooling of the machined workpiece at any point of it with account of the machining regime and of the intensity of the heat fl ux and the time of its action, and also the dependence of the stresses in the workpiece on the time of action of the heat source and its temperature. It has been established that by changing the structural parameters of the cutting surface of the wheel and the relation between the velocity of motion of the workpiece, the velocity of motion of the wheel, and the grinding depth, one can control the time of action of the heat fl ux on the workpiece and reduce thermal stress of the process
   
Author:  T. N. Ivanova
Keywords:  thermal stress, fl at grinding, residual stress
Page:  1413