摘要
在激光焊接条件下,分析了 20%SiCw /6061铝基复合材料焊缝表面及内部性,指出在激光焊接条件下,铝基复合材料的焊缝较窄、深宽比大;焊缝可分为焊缝中焊接区、熔化区及未变化区三部分;在中心焊接区内有大量Al4C3 生成,造成焊缝较脆容易断裂。
The exterior and interior characteristics of welding beadof laser welded 20%SiC/6061 aluminum matrix composites were studied.Laser welded the bead of aluminum matrix composites was nalTow and theratio of pentration and width was great.The welding bead could be dividedinto three parts:the center melt reaction section and melt unreaction sec-tion and heat affeted section.Many A14 C3 platelets were created in thecenter melt reaction section and made the welding bead brickle and easyto be ruptured.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2005年第1期58-60,共3页
Transactions of The China Welding Institution
关键词
激光焊接
铝基复合材料
焊缝
laser welaing
aluminrm matrix composites
weld
