Experimental investigation on performance of electroplated CBN wheel with ordered arrangement of abrasives in dry grinding

The electroplated super-hard abrasive wheel is prone to cause the blockage of wheel and the burnout of workpiece in high efficiency grinding due to insufficient of chip storage space. Ordered arrangement of abrasives technology is an effective method to improve sharpness and chip storage space of wheel. Moreover, it also can reduce grinding heat generation. Therefore, an ordered electroplated CBN wheel with dislocation arrangement of abrasives is developed by a new imprint dispensing method in this paper. Grinding force model of a dislocation arrangement of abrasives is established and discussed. Grinding forces, grinding temperatures and surface morphology of workpiece and wheel are compared with the traditional electroplated CBN wheel in dry grinding experiments. The results show that grinding force decreases by 15–20% and grinding temperature decreases by 6–20% in high-speed shallow grinding. However, grinding force increases by 5–15% and grinding temperature increases about 5% in high-efficiency deep grinding. Grinding forces are not only affected by abrasive arrangement but also by grinding amount. Surface quality of workpiece is worse when using the ordered wheel due to a considerable reduction in abrasive number, but the ordered wheel is no blockage.