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通过选择合适的刀具材料、合理的刀具参数(主要是刀具直径)和切削用量,有效地改善了淬硬钢材料的铰削加工工艺性能,解决了实际生产中淬硬钢材料高精度孔难加工的问题。加工完成的工件经精度等级达到了规定的IT7级,表面粗糙度值Ra0.73～0.86μm,完全能满足高精度模具的生产要求。
By selecting the appropriate tool material, reasonable tool parameters (mainly the diameter of the tool) and the amount of cutting, the hardened steel materials effectively improve the reaming process performance, to solve the actual production of hardened steel high precision hole difficult to process The problem. After the completion of the workpiece accuracy level reached IT7 level, the surface roughness Ra0.73 ~ 0.86μm, fully able to meet the high-precision mold production requirements.