王楠楠,邱然锋,石红信,张柯柯,任凤章,里中忍

• 1:河南科技大学材料科学与工程学院
• 2:有色金属共性技术河南省协同创新中心
• 3:日本国立熊本大学自然科学研究科

摘要(Abstract)：

探讨了A231B镁合金表面状态、制造态以及工艺垫片类型对电阻点焊过程中孔洞生成的影响。通过对接头横断面观察,采用孔洞面积分数评价了各类接头中孔洞生成的工艺依存性。结果表明母材中既存微孔和焊前母材表面状态对接头孔洞面积分数的影响很小;镁合金点焊过程中孔洞生成的主要因素是由热收缩与飞溅。通过延长电流缓降时间、提高电极压力能够抑制孔洞的生成。

关键词(KeyWords)： 镁合金;点焊;孔洞

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(U1204520);; 河南省基础与前沿技术研究项目(122300410202);; 教育部留学回国人员科研启动基金资助项目;; 河南省科技攻关项目(112102210176);; 河南省高校科技创新团队支持计划(13IRTSTHN003)

作者(Author): 王楠楠,邱然锋,石红信,张柯柯,任凤章,里中忍

DOI: 10.13289/j.issn.1009-6264.2014.09.003

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