Dynamic process of angular distortion between aluminum and titanium alloys with TIG welding  

作　　者：王蕊 梁振新 张建勋 

机构地区：[1]State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University

出　　处：《中国有色金属学会会刊：英文版》2008年第2期233-239,共7页Transactions of Nonferrous Metals Society of China

基　　金：Project(50475093)supported by the National Natural Science Foundation of China;Project supported by the State Key Laboratory ofAdvanced Welding Production Technology,China

摘　　要：The dynamic process of welding angular distortion in the overlaying welding of 5A12 aluminum alloy and BT20 titanium alloy was investigated.Information of dynamic distortion was got via self-made welding dynamic measuring system.Research results show that the characteristics of dynamic distortions at various positions of the plate edge parallel to the weld of 5A12 and BT20 alloy are different.Comparison between 5A12 and BT20 alloy shows that transverse shrinkage and downward longitudinal bending are main factors influencing the dynamic angular distortion processes of 5A12 and BT20 alloy under welding heat input of 0.32 kJ/mm.The angular distortion of 5A12 alloy is completely inversed with welding heat input increasing to 0.4 kJ/mm,and the position of weld center and buckling distortion become the primary factors.The dynamic process of welding angular distortion in the overlaying welding of 5A12 aluminum alloy and BT20 titanium alloy was investigated. Information of dynamic distortion was got via self-made welding dynamic measuring system. Research results show that the characteristics of dynamic distortions at various positions of the plate edge parallel to the weld of 5A12 and BT20 alloy are different. Comparison between 5A12 and BT20 alloy shows that transverse shrinkage and downward longitudinal bending are main factors influencing the dynamic angular distortion processes of 5A12 and BT20 alloy under welding heat input of 0.32 kJ/mm. The angular distortion of 5A12 alloy is completely inversed with welding heat input increasing to 0.4 kJ/mm, and the position of weld center and buckling distortion become the primary factors.

关 键 词：动力学过程 角扭曲 铝 钛 合金 焊接技术 

分 类 号：TG457.1[金属学及工艺—焊接]