基于横向进给的磨削淬硬层深度正交试验研究

Research on Orthogonal Experiment of Grinding Hardened Layer Depth Based on Transverse Feed

以横向进给磨削正交试验为基础,研究了磨削深度a_p、工件进给速度vw和横向重磨量C_r对40Cr钢磨削淬硬层深度的影响。结果表明:磨削深度a_p和工件进给速度v_w是影响磨削淬硬层深度的高度显著因素,其显著性大小依次为:磨削深度a_p>工件进给速度v_w>横向重磨量C_r。随着磨削深度的增加或工件进给速度的减小,磨削淬硬层深度相应增大。从提高磨削淬硬层深度及其均匀性的角度出发,本试验的最优磨削淬硬工艺参数组合:磨削深度ap为0.4 mm,工件进给速度v为0.2 m/min,横向重磨量C_r为1 mm。

Based on the orthogonal experiment of transverse feed grinding,the effects of grinding depth(a_p),workpiece feed speed(v_w)and transverse regrinding value(C_r)on the hardened layer depth of 40 Cr steel were studied.The results show that,the grinding depth(a_p)and the workpiece feed speed(v_w)are significant factors affecting the depth of the grinding hardened layer.The significant factors from large to small are as follows:grinding depth(a_p)>workpiece feed speed(v_w)>transverse regrinding value(C_r).With the increase of grinding depth or the decrease of workpiece feed speed,the grinding hardened layer depth increases accordingly.From the point of improving the depth and uniformity of grinding hardened layer,the optimum grinding hardening process parameters of this experiment are as follows:the grinding depth(a_p)of 0.4 mm,the workpiece feed speed(v_w)of 0.2 m/min and the transverse regrinding value(C_r)of 1 mm.