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中厚板铝合金激光-MIG复合双层焊接方法
引用本文:姚为,王志敏,李宏伟,王春明.中厚板铝合金激光-MIG复合双层焊接方法[J].焊接学报,2011,32(7):21-24.
作者姓名:姚为  王志敏  李宏伟  王春明
作者单位:1. 北京航星机器制造公司,北京,100013
2. .华中科技大学材料科学与工程学院,武汉,430074
基金项目:总装备部装备预先研究项目
摘    要:提出了激光-MIG复合双层焊接中厚板铝合金方法,该方法分两层进行焊接:第一层为打底焊,解决焊接熔深不足的问题;第二层为盖面焊,解决焊缝成形不良的问题.结果表明,在激光器额定功率为4 kW时,采用激光-MIG复合双层焊接方法焊接ZL114A材料的熔深可达10 mm,接头抗拉强度平均值为238 MPa,大于母材抗拉强度的8...

关 键 词:激光-MIG复合焊  双层焊接  中厚铝合金
收稿时间:2010/5/27 0:00:00

Double-layers laser-MIG hybrid welding method in welding thick aluminum alloy
YAO Wei,WANG Zhimin,LI Hongwei and WANG Chunming.Double-layers laser-MIG hybrid welding method in welding thick aluminum alloy[J].Transactions of The China Welding Institution,2011,32(7):21-24.
Authors:YAO Wei  WANG Zhimin  LI Hongwei and WANG Chunming
Affiliation:Beijing Hangxing Machinery Manufacturing Corporation, Beijing 100013, China,Beijing Hangxing Machinery Manufacturing Corporation, Beijing 100013, China,Beijing Hangxing Machinery Manufacturing Corporation, Beijing 100013, China and Material Science and Technology College, Huazhong University of Science and Technology, Wuhan 430074, China
Abstract:In this paper, double-layers laser-MIG welding of thick aluminum alloy method was put forward. It welds two layers:the first layer padding welding, to solve the problem of inadequate weld penetration; second welding surface for the cap to address the problem of the poor weld shape. The results showed that:rated at 4 kW lasers when the composite layer by laser-MIG welding materials, welding ZL114A deeps up to 10mm, average joint tensile strength is 238 MPa, tensile strength is greater than 80% of the base metal. Double-layers laser-MIG welding method of welding, a simulation of a cylindrical pieces of aerospace products, forming a good weld, penetration up to 9 mm. With no crack, no incomplete penetration and lack of fusion, no visible inclusions, defects is mainly chain-like porosity, pore diameter less than 1mm, almost no distortion after welding.
Keywords:laser-MIG hybrid welding  double-layers welding  thick aluminum alloy
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