CAJ | 학술논문

采用电流辅助激光熔钎焊的方法对钛/铝异种合金的焊接特性进行研究.结果表明:激光功率对钛/铝异种合金接头的力学性能及微观组织有着明显的影响;辅助电流可有效地降低焊接过程中所需的激光功率,促进焊丝及铝合金母材的熔化,提高液态金属对母材的润湿铺展能力,在一定程度上促进了界面反应.
채용전류보조격광용천한적방법대태/려이충합금적한접특성진행연구.결과표명:격광공솔대태/려이충합금접두적역학성능급미관조직유착명현적영향;보조전류가유효지강저한접과정중소수적격광공솔,촉진한사급려합금모재적용화,제고액태금속대모재적윤습포전능력,재일정정도상촉진료계면반응.
The welding characteristic of Ti/Al dissimilar alloy by laser welding-brazing with assistant current was investigated. The experiment results indicate that laser power has a significant influence on mechanical properties and interfacial microstructures. The assistant current effectively decreases laser power required for joining Al alloy to Ti alloy, and significantly enhances the melting of filler wire and Al substrate as well as the wettability of liquid metal on Ti substrate. In addition, the interfacial reaction is improved by increasing assistant current to some degree.