电焊机2017，Vol.47Issue(12)：78-81,4.DOI:10.7512/j.issn.1001-2303.2017.12.17
不锈钢冷金属过渡焊角接接头应力及变形规律研究
Research on residual stress and deformation of corner joints in cold metal transfer welding for stainless steel
马明菊 1汪认 1徐德志 2孙凯2
作者信息
- 1. 中车青岛四方机车车辆股份有限公司,山东青岛266111
- 2. 西南交通大学材料科学与工程学院,四川成都610031
- 折叠
摘要
Abstract
In the lightweight issue of high-speed train,the stainless steel sheet plays an important role in body structure and has received increasing attention.The fillet welding test is conducted on the SUS301L sheet with dissimilar thickness by cold metal transfer technology.The temperature change of the positions which have different distances from the weld center is collected by thermocouple probe.3D laser scanner is used to measure welding deformation.Large wavy deformation occurs in the bottom plate after welding since a special restrained condition of suspended welds.The maximum deformation is about 6.545 mm.The residual stress of joints is measured by μ-X360 analyzer and the distribution of stress is M-type.关键词
冷金属过渡焊/不锈钢薄板角接/热循环/焊接变形/残余应力Key words
cold metal transfer welding/corner welding of stainless steel sheet/thermal cycle/welding deformation/residual stress分类
矿业与冶金引用本文复制引用
马明菊,汪认,徐德志,孙凯..不锈钢冷金属过渡焊角接接头应力及变形规律研究[J].电焊机,2017,47(12):78-81,4.
