Evaluation of weld-pass process on eliminating weld residual stress - 文章详情页

作者：

Zhang, Yiliang (Zhang, Yiliang.) | Shi, Xian (Shi, Xian.) | Zhao, Jianping (Zhao, Jianping.) | Zhao, Shilei (Zhao, Shilei.)

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摘要：

In　order　to　reduce　the　welding　residual　stress,　researchers　adopted　tempering　weld-pass　treatment　for　the　improvement　of　the　class　III　vessels　in　an　expansion　project.　Due　to　the　optimization　and　evaluation　of　welding　process,　the　researchers　conducted　a　comprehensive　test　and　evaluation　by　X-ray　method　on　six　Q345　steel　welding　test　plates　(600　mm×300　mm×30　mm),　with　three　kinds　of　processes　(welding　and　two　kinds　of　new　tempering　welding　treatment)　and　2　patterns　(flat　butt　and　T-joint　welded　plate)　and　considering　the　weld　metal　polished　(side　B)　while　the　other　side　(side　A)　not.　The　results　showed　that　the　welding　residual　stress　in　1　and　3　T-plate　decreased　by　46%　and　36%　respectively　than　which　is　not　with　tempering　welding　treatment.　Tempering　weld-pass　treatment　reduced　the　longitudinal　stress　(LS),　and　the　transverse　stress　(TS)　became　the　first　principal　stress.　The　residual　stress　of　A-side　was　25%　higher　than　that　of　B-side.　To　reduce　the　residual　stress,　the　weld　metal　can　be　removed　in　practical　engineering　applications.

关键词：

Welded steel structures Residual stresses Welds Plate metal Welding Tempering X ray diffraction

作者机构：

[ 1 ] [Zhang, Yiliang]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Shi, Xian]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Zhao, Jianping]College of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 211816, China
[ 4 ] [Zhao, Shilei]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

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电子邮件地址：

zhangyil@bjut.edu.cn

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