航天器环境工程2015，Vol.32Issue(5)：549-553,5.DOI:10.3969/j.issn.1673-1379.2015.05.017
KM8不锈钢板式热沉激光焊接工艺研究
Laser welding of the KM8 stainless steel plate-style thermal shroud
摘要
Abstract
The thermal shroud is an important subsystem of the space environment simulator, mainly used to provide a cold and dark environmental for the spacecraft thermal balance and thermal vacuum tests. The thermal shroud of the KM8 space environment simulator used for the space station thermal test and the KM7A space environment simulator used for the satellite test are all in stainless steel plate-style structures. For the manufacture of the two large stainless steel thermal shrouds, the urgent need is to solve the bottleneck problem related with the processing of the stainless steel plate-style thermal shrouds. This paper analyzes the laser welding process for the KM8 thermal shroud. Welding specimens of different combinations of plate thickness with different welding parameters are made, and mechanical tensile tests, weld analysis and detections are carried out. The optimum welding parameters of the combination of different thickness plates are then determined. The manufacture practice shows that the welding parameters obtained in this study are adequate.关键词
空间环境模拟器/热沉/激光焊接/焊接工艺/不锈钢板Key words
space environment simulator/thermal shroud/laser welding/welding process/stainless steel plate分类
航空航天引用本文复制引用
许贞龙,李玉忠,崔立军,陈金明..KM8不锈钢板式热沉激光焊接工艺研究[J].航天器环境工程,2015,32(5):549-553,5.基金项目
中国空间技术研究院自主研发项目 （）
