摘要
基于多层GH4169波纹管组件电子束焊接过程中的气孔缺陷问题,开展了工艺优化试验,并进行了气孔缺陷显微组织分析。研究结果表明:降低焊接速度、添加扫描功能或脉冲功能对气孔缺陷的控制有直接影响。其中,使用脉冲功能补焊,气孔抑制效果最明显,最终可形成符合标准要求的焊接接头。
In this paper,based on the problem of porosity defects in electron beam welding of multi-layer GH4169 bellows assembly,the process optimization experiment was carried out and the microstructure of porosity defects was analyzed.The results of research shows that reducing welding speed and adding scanning function or pulse function have direct influence on the control of porosity defects.Among them,the porosity inhibition effect is the most obvious and finally the welding joint meeting the requirements can be formed when pulse function is used for repair welding.
作者
蔡菁青
房冬青
郭盛斌
白淳
张丽娜
王炜
谷文博
Cai Jingqing;Fang Dongqing;Guo Shengbin;Bai Chun;Zhang Lina;Wang Wei;Gu Wenbo(Capital Aerospace Machinery Co.,Ltd.,Beijing 100076)
出处
《航天制造技术》
2022年第4期29-32,共4页
Aerospace Manufacturing Technology
关键词
电子束焊接
焊缝气孔
多层波纹管
脉冲功能
electron beam welding
weld porosity
multi-layer bellows
pulse function
