深小孔加工工具电极损耗研究  

Research on Tool Electrode Wear in Drilling Small Deep Holes by Using EDM

作　　者：张晓洪[1] 齐麦顺[2] 

机构地区：[1]西华大学机械工程与自动化学院,四川成都610039 [2]燕山大学继续教育学院,河北秦皇岛066004

出　　处：《西华大学学报（自然科学版）》2010年第6期7-9,21,共4页Journal of Xihua University:Natural Science Edition

摘　　要：以减少深小孔加工工具电极损耗为目的,利用DK703数控电火花小孔加工机,对65Mn深小孔电火花放电加工展开试验研究,以加工工具电极损耗为研究对象,采用部分正交多项式回归设计方法,进行了回归试验,通过试验数据得出回归方程,并用极值分析的方法确定最优参数组合:当脉冲宽度为50μm,占空比为1,峰值电流为1档时,加工工具电极损耗是最小的,为8mm左右。本文的试验结果验证了该回归方程和参数优化合理。In order to reduce the tool electrode wear in processing small deep holes in EDM,a trial research is conducted on a CNC EDM perforation machine DK703 with workpiece material 65Mn.In the trial,the tool electrode wear is taken as research object,and relevant mathematical models are created using the regressive method of orthogonal polynomials.The optimal parameters combination is obtained.The selected optimal parameters are that pulse width is 50μm,duty cycle is 1,and peak current is the 1st position.And the value of tool electrode wear is about 8 mm.It is proved that the regression equation and optimum parameter analysis are reasonable.

关 键 词：深小孔 电加工 电极损耗 参数优化 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]