铝合金电阻点焊电极延寿技术的研究  

Research on maintaining service life technology for the electrode of Al-alloy resistance spot welding

作　　者：李青松[1] 罗震[2] 李中伟[1] 张东文[1] 

机构地区：[1]河北省电力研究院,河北石家庄050021 [2]天津大学,天津300072

出　　处：《电焊机》2009年第7期59-61,共3页Electric Welding Machine

摘　　要：在铝合金点焊过程中,接头强度的波动、表面成形差、表面清理工艺复杂、飞溅多以及电极使用寿命短等问题都影响了铝合金点焊工艺的推广,而电极烧损又是导致这些问题的主要原因。以实验为基础探讨了铝合金电阻点焊时电极发生烧损的机理及其影响因素,为进一步解决电极烧损问题提供了一些理论依据。通过实验寻找一种较好的能涂敷在铝合金表面的物质,这层物质涂层能有效提高点焊铝合金时铜电极的使用寿命。To weld aluminum alloy with resistance spot welding,to generalize resistance spot welding technology for aluminum alloy is affected caused by some questions, such as the fluctuating of joint＇s hardness, bad surfacing formation, comphcated cleaning surface process, more welding spatter,and low service life of electorde, ere.And the fire waste of electrode is the main causation which affects to generalize resistance spot welding technology for aluminum alloy.ln this paper,the mechanism and its influnce facts of fire waste of aluminum alloy when resistance spot welding based on experiments are discussed, and the theroy basis for solving fire waste of electrode is provided.To search a special material for coating the surface of alminum alloy by experimets.This coating can improve the service life of electrode.

关 键 词：铝合金 电阻点焊 电极失效 

分 类 号：TG457.14[金属学及工艺—焊接]