基于中间过渡层的5A06/0Cr18Ni10Ti气化冲击焊接工艺研究  

Study on Vaporizing Foil Actuator Welding Process of 5A06/0Cr18Ni10Ti with Interlayer

作　　者：苏珊[1] 陈树君[1] 肖珺[1] Yu MAO Anupam VIVEK Glenn DAEHN SU Shan;CHEN Shujun;XIAO Jun(Engineering Research Center of Advanced Manufacturing Technology for Automotive Components, Ministry of Education, Beijing University of Technology, Beijing 100124, China)

机构地区：[1]北京工业大学汽车结构部件先进制造技术教育部工程研究中心,北京100124 [2]Impulse Manufacturing Laboratory, the Ohio State University, Columbus 43211, USA

出　　处：《金属学报》2019年第8期1041-1048,共8页Acta Metallurgica Sinica

基　　金：国家自然科学基金项目No.51575012~~

摘　　要：利用气化冲击焊接技术,制备了力学性能良好基于中间层的5A06铝合金与0Cr18Ni10Ti不锈钢气化冲击焊接接头,中间层3003铝合金与飞板5A06铝合金和靶板0Cr18Ni10Ti界面焊接良好,接头结合区域呈圆环状。通过信号采集系统分析了铝箔气化时间和电流随能量输入的变化,采用OM和SEM分析了接头界面的微观形貌和元素分布。研究了能量输入对铝箔气化的时刻和接头力学性能的影响。结果表明,随着能量输入的增加,铝箔气化所需时间减小,最终碰撞速率增大,从而使焊接区域直径增大;接头的抗拉力和抗剪力随能量输入的增大而增大。当能量输入为9 kJ时,接头的最大抗拉力为44.0 k N,抗剪力为2.1 kN;5A06/3003界面呈中间对称波状结合,3003/0Cr18Ni10Ti界面以金属间化合物连接,结合区域错位分布。Aluminum alloy and stainless steel composite structure have been widely used in the chemical industry. Aluminum alloy and stainless steel are difficult to weld by fusion weld method because of differences in physical and chemical properties. Joints of aluminum alloy 5 A06 and 0 Cr18 Ni10 Ti stainless steel with good mechanical properties were created using vaporizing foil actuator welding with an interlayer. The interlayer was welded to both the target and the flyer on a ring-shaped welded area. The influences of the input energy on the time of the occurrence of vaporization and mechanical properties of the joints were analyzed. Single collection system and photonic Doppler velocimetry system were used to analyze the burst time, discharge current and voltage changes with energy input increased, and microstructure and element distribution were analyzed by OM and SEM with EDS. The results show that as the input energy increases, the vaporization of the foil occurred earlier and achieved higher impact velocity,resulting in a larger diameter of the welded area. The peak tensile load and shear load were increased with energy input increased, the peak tensile load is 44.0 k N and peak shear load is 2.1 k N with 9 k J energy input. The Al3003 was joint to 5 A06 in symmetric wavy pattern and joint with 0 Cr18 Ni10 Ti stainless steel by intermetallic compounds. The joining areas were not aligned.

关 键 词：中间过渡层 异种材料 气化冲击焊接 光子多普勒测速 

分 类 号：TG456.9[金属学及工艺—焊接]