深冷处理对高速钢丝锥磨损的影响

Influences of cryogenic treatment on high speed steel tap wear

深冷处理对高速钢的耐磨性有一定的影响,但不同的深冷处理工艺使材料的耐磨性有较大的差别。采用正交试验的方法,比较不同深冷温度、保温时间、主轴转速对高速钢丝锥后刀面最大磨损值VB的影响,试验及分析结果表明,因素显著性顺序为:主轴转速>深冷温度>保温时间,最优组合为深冷温度-120℃,保温时间为4 h,主轴转速为150 r/min。

Cryogenic treatment has some effect on the wear resistance of high speed steel,but different cryogenic treatment process makes a great difference in wear resistance of the material. This article adopts the method of orthogonal test,compares different cryogenic temperature,holding time and spindle speed influence on the maximum flank wear of high speed steel tap. Test and analysis results show that significant factor in order: spindle speed > cryogenic temperature > holding time,optimal combination: cryogenic temperature- 120 ℃,holding time 4 h,cutting speed 150 r/min.