磨削用量对65Mn钢磨削淬硬层深度及其均匀性的影响

Influences of Grinding Parameters on Grinding-Hardened Layer Depth and Uniformity of 65Mn Steel

采用刚玉砂轮在普通平面磨床上对65Mn钢进行磨削淬硬,研究磨削深度和工件进给速度对65Mn钢磨削淬硬层深度及其均匀性的影响。结果表明:试件淬硬层由完全淬硬层、过渡层组成;淬硬层最大深度随磨削深度的增大而增大,随工件进给速度的增加而减小;在本试验条件下,磨削深度ap>0.4mm时,试件表层全部淬硬,均匀性较好。

The grind-hardening of steel 65Mn had been carried out on a surface grinder with alumina grinding wheel,and the influences of the depth of cut and feed speed on depth and uniformity of harden layer were investigated.The results show that the grinding-harden layer consists of the completely hardened region and the transition region.When the depth of cut increases,the largest depth of harden layer increases accordingly and when the feed speed of workpiece increases,the largest depth of harden layer decreases accordingly.The120 surface of specimen would be competely hardened if the depth of cut is greater than 0.4mm,and the uniformity of harden layer has been improved also.