金属加工（热加工）Issue(5)：63-68,76,7.
镀锌风管激光焊接头组织性能及锌元素含量研究
Research on microstructure,mechanical properties and zinc element content of laser welded joints in galvanized air ducts
亓安泰 1马迎兵 2闫灿灿 1李竹渊 1董安 2胡玉 1刘金平 1张晓冬 1杨晓宁1
作者信息
- 1. 核工业工程研究设计有限公司 北京 101300
- 2. 中国核电工程有限公司 北京 100840
- 折叠
摘要
Abstract
By using laser wire-feeding welding method and without removing the galvanized layer,the welding of thin steel plates of galvanized air ducts is achieved.The micro structure and mechanical properties of the joints are observed through a metallographic microscope and an electronic universal testing machine.The research shows that within the process range of laser power from 3020 to 3340W,welding speed from 4 to 8mm/s,wire feeding speed from 1.8 to 2.2m/min,and defocus amount from+3 to+7mm,ferrite and martensite in the weld zone and heat-affected zone are evenly distributed.When the laser power is 3180W,the welding speed is 7mm/s,the wire feeding speed is 2.0m/min,and the defocus amount is+5mm,the tensile load of the joint can reach a maximum of 30.96kN.It is detected by EPMA(Electron Probe Micro-Analyzer)that there is no zinc element in the weld,indicating that zinc vapor does not affect the welding during the laser welding process.关键词
激光焊接/镀锌层/组织/电子探针/Zn元素Key words
laser welding/galvanized layer/microstructure/electron probe/zinc element引用本文复制引用
亓安泰,马迎兵,闫灿灿,李竹渊,董安,胡玉,刘金平,张晓冬,杨晓宁..镀锌风管激光焊接头组织性能及锌元素含量研究[J].金属加工（热加工）,2026,(5):63-68,76,7.
