铝/钢异种金属磁力脉冲焊接多物理场耦合有限元分析  

Finite element analysis of multi-physics coupling for electromagnetic welding of aluminum/steel dissimilar metals

作　　者：王艳[1] 熊志林 宁朝阳[1] 陈金兰 Wang Yan;Xiong Zhilin;Ning Zhaoyang;Chen Jinlan(School of Mechanical Engineering,Hunan Industry Polytechnic,Changsha 410208,Hunan,China;Hunan Engineering Research Center of Intelligent Flexible Machining Technology for Complex Thin-walled Precision Parts,Changsha 410208,Hunan,China)

机构地区：[1]湖南工业职业技术学院机械工程学院,湖南长沙410208 [2]复杂薄壁精密零件智能柔性加工技术湖南省工程研究中心,湖南长沙410208

出　　处：《钢铁钒钛》2024年第3期188-194,共7页Iron Steel Vanadium Titanium

基　　金：湖南省教育厅科学研究一般项目(22C0854)。

摘　　要：铝/钢异种金属焊接接头易反应生成Fe-Al金属间化合物,恶化接头性能,使焊接成型困难。使用ABAQUS有限元软件模拟异种金属磁力脉冲焊(EMW)电磁-热-结构耦合过程,在最小能量下实现铝/不锈钢的高质量焊接。基于Box-Behnken响应曲面法设计试验,从电压(V)、间距(ds)和驱动板厚度(td)等工艺参数中提取重要参数。通过绘制Al/不锈钢焊接工艺窗口研究焊缝形成的可能性,并试验验证EMW仿真结果的有效性。通过分析最佳工艺参数下接头微观结构评估了接头成型质量。方差分析表明,在V=15 kV,ds=1.5 mm和td=1 mm下,可以获得用于高质量焊接的最大撞击速度。The reaction of aluminum/steel dissimilar metals welded joints to form Fe-Al intermetallic compounds deteriorates joint performance and makes welding forming difficult.In this paper,ABAQUS finite element software was used to simulate the electromagnetic-thermal-structure coupling process of dissimilar metal electromagnetic welding(EMW)to achieve high-quality aluminum/stainless steel welding with minimal energy.The experiment was designed based on the Box-Behnken response surface method,and important parameters were extracted from the process parameters such as voltage(V),separation distance(ds)and driving plate thickness(td).By drawing the Al/stainless steel welding process window,the possibility of weld formation was studied,and the validity of the EMW simulation results was verified by experiments.In order to evaluate the joint forming quality,the joint microstructure under the optimal process parameters was analyzed.The analysis of variance shows that the maximum impact velocity for high-quality welding can be obtained under V=15 kV,ds=1.5 mm and td=1 mm.

关 键 词：铝/钢异种金属 磁力脉冲焊 有限元模拟 电磁-热-结构耦合 响应曲面法 

分 类 号：TG456[金属学及工艺—焊接] TG146[一般工业技术—材料科学与工程]