Experimental research on material removal in robot abrasive belt grinding

摘要

In order to reveal the material removal behavior of robot abrasive belt grinding (RABG) of nickel-based superalloy, the experimental research method of single grit grinding is proposed. In the research, ceramic alumina grits are used to scratch superalloy K438 based on the experimental setup of RABG. Four material removal parameters, namely real cutting depth, number of cutting edges involved in grinding, effective cutting area of cutting edges and pile-up ratio, are used to quantitatively describe the material removal behavior. The experimental results show that the grits have good cutting performance. And the cutting edges involved in grinding change dynamically, which has a significant influence on material removal. In addition, this paper analyzes the differences between RABG and wheel grinding (WG), studies the effect of cutting depth on material removal, and determines the factors that affect the material removal ability by evaluating the material removal ability of different grits.