Study on Grinding Force of Grind-Hardening Based on Orthogonal Experimental Method

摘要

On the basis of orthogonal experiment method, the grind-hardening of 65Mn steel had been carried out on a conventional surface grinder with alumina grinding wheel, the influence of depth of cut a_p, table speed v_w, grinding mode g_m, and interaction between depth of cut and table speed av on grinding force were investigated. The results show that, all factors influencing the mean value of tangential grinding force F., are insignificant factor and av can be regarded as abandoned factor, in addition the significance ratio from most to least as followed: v_w>a_p>g_m,> av; all factors influencing the mean value of normal grinding force F_(mn) are significant factor, in addition the significance ratio from most to least as followed: a_p > v_w> g_m > ay. Relatively smaller grinding force and completely grind-hardened layer workpiece can be obtained when using grinding conditions that the a_p= 0.2mm, the v_w = 0.2m/min, and the g_m, =up grinding + down grinding in practical applications.