Open AccessUltra-low temperature effect on electron beam welding process
Author(s) -
Qiankun Xiao,
Xiaolin Han,
Yingying Pei
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/770/1/012067
Subject(s) - welding , electron beam welding , materials science , mechanical engineering , laser beam welding , deformation (meteorology) , spacecraft , process (computing) , cold welding , ultimate tensile strength , composite material , cathode ray , computer science , gas metal arc welding , engineering , electron , aerospace engineering , physics , quantum mechanics , operating system
In recent years, electron beam welding has become the most important application technology for space welding and plays an important role in the orbital assembly and repair of spacecraft at home and abroad. In this paper, the combination of simulation calculation and experimental verification is used to design the welding deformation control process scheme and related fixtures for ultra-low temperature environment, and the deformation test verification study of welding/repair is carried out. TC4 welding and repairing weld static strength, the tensile strength reaches 90% of the strength of the base metal, and the micro-hardness is basically the same. It provides reference and reference for the future application of electron beam welding technology in space in China.