Fiber laser-MIG hybrid welding process of commercial pure titanium and its properties - 文章详情页

作者：

Cui, Li (Cui, Li.) (学者：崔丽) | Li, Xiaoyan (Li, Xiaoyan.) | He, Dingyong (He, Dingyong.) (学者：贺定勇) | Kutsuna, Muneharu (Kutsuna, Muneharu.)

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摘要：

Fiber　laser-metal　inert　gas　(MIG)　arc　hybrid　welding　was　used　to　weld　the　commercial　pure　titanium　(CP-Ti).　The　weld　appearance,　cross　section,　tensile　strength,　Erichsen　value　and　microstructure　of　the　CP-Ti　welded　joints　were　studied.　The　results　show　that　the　arc　stability　is　substantially　improved　and　the　welding　speed　can　be　increased　to　7　times　by　fiber　laser-MIG　hybrid　welding.　The　welded　joints　by　laser　welding　and　the　hybrid　welding　exhibit　the　higher　ultimate　tensile　strength　than　those　of　the　base　metal.　In　addition,　the　welded　joint　by　the　fiber　laser-MIG　hybrid　welding　has　higher　Erichsen　values　than　that　by　laser　joints.　The　difference　in　plasticity　is　attributed　to　the　microstructure　changes　in　the　welded　joint　of　hybrid　welding.　Thus,　the　fiber　laser-MIG　hybrid　welding　of　CP-Ti　can　be　carried　out　successfully　at　higher　welding　speed　with　a　good　combination　of　weld　bead　appearance　and　plasticity.

关键词：

Fiber lasers Fibers Gas welding Inert gases Inert gas welding Metal testing Microstructure Plasticity Tensile strength Tensile testing Titanium alloys Titanium compounds Titanium metallography Welds

作者机构：

[ 1 ] [Cui, Li]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Li, Xiaoyan]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [He, Dingyong]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Kutsuna, Muneharu]Nagoya University, Nagoya 464-8603, Japan

通讯作者信息：

电子邮件地址：

cuili@bjut.edu.cn

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