电火花加工中电极材料对加工性能影响的试验研究  

Experimental study on processing performance of electrode material in electric discharge machining

作　　者：陈虎[1,2] 张立新[1] 喻俊志[3] 王卫兵[1] 

机构地区：[1]石河子大学机械电气工程学院,石河子832003 [2]新疆天业集团模具中心,石河子832003 [3]中国科学院自动化研究所复杂系统与智能科学实验室,北京100080

出　　处：《现代制造工程》2013年第4期79-84,共6页Modern Manufacturing Engineering

基　　金：国家科技支撑计划子课题项目(2012BAF07B04-41);中国科学院科技支新项目(XBXJ-2011-020)

摘　　要：以电火花多电极加工3Cr13模具型腔为研究对象,以提高材料去除率和降低电极损耗为目标,对负极性标准切入加工时不同电极材料的电火花加工性能(加工效率、电极损耗)进行研究,设计并进行了不同工艺参数下紫铜电极和Cu50W铜钨合金电极加工试验,获得了不同条件下的材料去除率和电极相对损耗参数,并对多电极电火花加工工艺及经济性进行了分析,结果表明:相同工艺参数下,加工性能因电极材料热学性能不同而不同,Cu50W铜钨合金的材料去除率约为紫铜的85.7%,而电极相对损耗约为紫铜的42.9%,从而为电火花加工不锈钢模具材料的电极选择提供了理论依据。In order to improve material removal rate and reduce electrode wear, EDM multi-electrode machining 3Crl3 die steel were used to study process performance of different electrode material. The electrical discharge machining contrast experiments with different technological parameters were designed and carried out. The parameters of material removal rate and relative electrode wear were obtained at different process conditions, and analyzed the processing technology and the profitability of EDM technological. The results suggest that, the processing performance of EDM was changed by the thermal properties of the electrode ma- terial. The Cu50W material removal rate is about 85.7% using the copper as reference, however, the relative electrode wear is about 42.9%. The above results provided a theoretical foundation for the select of electrode in EDM machining stainless steel mould.

关 键 词：多电极 电火花加工 电极材料 加工性能 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]