Study on Sphere Grinding Temperature of Coated Workpiece with Block Structure Cup Wheel

The triangular heat source model and the effective width of moving heat source were used to deduct theoretical formula of temperature field according to the real conditions of the sphere grinding of coated workpiece with block structure cup wheel. The dynamic effect of grinding toward heat transfer process, the face temperature of wear debris and the one-dimension heat transfer model were integrated to study on ratio of heat introduced to workpiece. The grinding temperature and surface morphology were compared between the block structure cup wheel and normal cup wheel by the experiment, and the influence of grinding parameters toward grinding temperature was also analyzed. The results show that there are lower grinding temperature and better grinding conditions in sphere grinding of coated workpiece with block structure cup wheel than in that with normal cup wheel.