保护气体对铝合金焊接气孔敏感性的影响
Effect of Shielding Gas on Susceptibility to Porosity in
杨小波
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作者单位:重庆大学
中文关键字:铝合金;氩气;混合气体;气孔
英文关键字:aluminum alloy; argon; argon-helium mixture; porosity
中文摘要:摘要:铝合金熔化焊时,气孔是最常见的焊接缺陷之一。本文综述了铝合金焊缝气孔的形成机理,并讨论了纯氩气保护气体和氩氦混合保护气体对焊缝中气孔数量的影响。
英文摘要:Abstract: Porosity is a commen welding defect in fusion welding of aluminum alloy. This paper reviews the mechanisms of porosity formation and discusses the effects of pure argon shielding gas and argon-helium mixture on porosity of welded joints.
Key words: aluminum alloy; argon; argon-helium mixture; porosity