轻工机械2018，Vol.36Issue(2)：1-5,5.DOI:10.3969/j.issn.1005-2895.2018.02.001
基于CMT技术的镀锌钢-铝合金板焊接变形研究
Deformation Analysis of Welding of Galvanized Steel-Aluminum Alloy Sheet Based on CMT Welding Technology
摘要
Abstract
Cold metal transfer(CMT) technology was applied for galvanized steel and aluminum alloy edge plug welding deformation problem,using the five factors(wire feeding speed,welding time,aluminum plate thickness,hole diameter and arc length correction) three levels (low, medium and high) orthogonal test method.Through the analysis of deformation quantity,the optimum welding parameters were obtained.The connection strength and welding quality of the weldment under the optimum technological parameters were investigated by tensile test and metallographic test.The results show that wire feeding speed, aluminum plate thickness and opening diameter have the greatest influence on welding deformation.The optimal process parameters are combined with wire feeding speed of 5 m/min, opening diameter of 6 mm,the aluminum sheet thickness 1.5 mm,arc length correction 5%,and welding speed of 1.6 m/min. The best combination of welding parameters obtained by variance analysis not only makes the deformation of welding sheet smaller,but also achieves the required connection strength.关键词
异种金属焊接/焊接变形/冷金属过渡/边塞焊/正交实验法Key words
welding of dissimilar metals/welding deformation/CMT(cold metal transfer)/orthogonal experiment method/edge plug welding分类
矿业与冶金引用本文复制引用
王夏杰,邢彦锋,金光灿..基于CMT技术的镀锌钢-铝合金板焊接变形研究[J].轻工机械,2018,36(2):1-5,5.基金项目
国家自然科学基金项目(51105241) （51105241）
上海工程技术大学研究生科研创新基金项目(E3-0903-17-01084). （E3-0903-17-01084）
