电子与封装2023，Vol.23Issue(12)：24-28,5.DOI:10.16257/j.cnki.1681-1070.2023.0159
4047铝合金成分对激光焊接气孔的影响
Influence of 4047 Aluminum Alloy Composition on Laser Welded Porosity
李宸宇 1王传伟 1吴昱昆 1魏之杰1
作者信息
- 1. 中国电子科技集团公司第三十八研究所,合肥 230088
- 折叠
摘要
Abstract
4047 aluminum alloy is widely used in microwave components in the aerospace field.The formation mechanism of laser welded porosity in 4047 aluminum alloy with different organizational compositions is investigated.The results show that the low Si content in the alloy reduces the heat absorption rate of the material,leading to reduced mobility in the hot melt zone and easy formation of porosity.By increasing the welding laser power to improve the heat input of the alloy,the generation of porosity can be reduced,and the airtightness qualification rate of the product can be improved.The increased welding stress caused by the orientation of alloy organization can also easily lead to the generation of welded porosity.The welding quality can be improved by performing stress relief annealing treatment before welding.关键词
激光封焊/4047铝合金/焊接气孔Key words
laser sealing welding/4047 aluminum alloy/welded porosity分类
信息技术与安全科学引用本文复制引用
李宸宇,王传伟,吴昱昆,魏之杰..4047铝合金成分对激光焊接气孔的影响[J].电子与封装,2023,23(12):24-28,5.
