摘要
针对Al、Fe元素物理化学性能差异大,常规焊接方法焊接性差、接头强度低等问题,通过数值模拟与试验研究相结合的方法,分析不同的碰撞速度、碰撞角度对3003铝合金和0Cr18Ni10Ti不锈钢气化冲击焊接界面行为及产物分布的影响。使用光滑粒子动力学(SPH)方法对气化冲击焊接过程中分析界面行为及温度分布情况进行分析,研究不同的工艺参数条件对界面波形特征的影响规律,得出界面射流产生的条件和界面特征的形成机理,比较不同工艺条件下得到的界面波形特征的变化趋势和界面产物的分布特点。数值模拟和试验结果对推广气化冲击焊接在异种金属材料上的工程应用具有重要的意义。
Considering the significant differences in the physical and chemical properties of aluminum and iron,the poor weldability of conventional welding methods,and the low joint strength,this study analyzes the effects of various collision speeds and angles on the interface behavior and product distribution in vaporization foil actuator welding of 3003 aluminum alloy and 0Cr18Ni10Ti stainless steel through a combination of numerical simulation and experimental research.The SPH method is employed to analyze the interface behavior and temperature distribution during the vaporization foil actuator welding process,and the influence of various process parameters on the interface waveform characteristics is examined.The conditions for the generation of interface jets and the formation mechanism of interface characteristics are determined,and the changing trends of interface waveform characteristics and the distribution characteristics of interface products under different process conditions are compared.The numerical simulation and experimental results are highly significant for the engineering application of vaporization foil actuator welding in dissimilar metal materials.
作者
吴媛媛
谷晓亚
刘晓余
苏珊
WU Yuanyuan;GU Xiaoya;LIU Xiaoyu;SU Shan(Shijiazhuang Vocational College of Finance and Economics,Shijiazhuang 050200,Hebei,China;Hebei Xinlaiman Construction Technology Co.Ltd.,Shijiazhuang 051330,Hebei,China;Shijiazhuang Tiedao University,School of Mechanical Engineering,Shijiazhuang 050043,Hebei,China)
基金
河北省自然基金面上项目(E2021210117)。
关键词
异种材料
气化冲击焊接
数值模拟
界面行为
dissimilar material
vaporization foil actuator welding
numerical simulation
interfacial behavior
