Simulation and Analysis of Residual Stress and Tool Wear in Mechanical Repeated Ruling Process

In order to study the superiority of mechanical repeated ruling grating blank compared with single mechanical ruling, the residual stress and tool wear are analyzed in this paper. In this paper, the residual stress theory of mechanical repeated ruling is first established, and then four groups of single factor test methods with constant total ruling depth are adopted in combination with the finite element simulation software. The first group is a single ruling test, and the last three groups are mechanical repeated ruling tests. The characteristics of residual stress and tool wear of raster blank were studied and compared. The analysis results show that the distribution of residual stress field and tool wear in mechanical repeated ruling grating blank are more regular than that in single one. Taking the above factors into consideration, the optimal combination scheme of one-time large ruling deep and two-time small ruling depth is adopted. The results of this study provide a theoretical basis and method guidance for the mechanical repeated ruling grating.