Open AccessA Study on the Joining Technology of Copper-Aluminium Composite Heat-Dissipating Components
Author(s) -
Yanfei Bian,
Shi Jian-zhou,
Xie Ming-jun,
Meng Cai
Publication year - 2021
Publication title -
journal of manufacturing engineering
Language(s) - English
Resource type - Journals
ISSN - 0973-6867
DOI - 10.37255/jme.v16i2pp066-069
Subject(s) - brazing , aluminium , copper , materials science , metallurgy , composite number , thermal conductivity , welding , composite material , alloy
Copper-aluminium composite heat dissipation components have both the high thermal conductivity of copper and the low density of aluminium. Copper and aluminium are dissimilar materials as they have significant differences in physical and chemical properties, and hence it is not easy to weld them together. In this paper, the joining of copper to aluminium is studied by using the ultrasonic brazing technique. The results show that the copper and aluminium can be connected by ultrasonic brazing, and it is found that the bonding of the copper side interface is the weak link of the entire joint, but the joint strength can still reach 95MPa.