Rolling-Cladding Technology for Cu-Al Thin Sheet

Author:

Xiong Sang,Shang Zhengping,Gao Huan,Zhai Qijie

Abstract

Abstract In order to meet the demand of electronic and heat-radiating devices for CuAl composite the rolling-cladding technology for Cu-Al thin sheet was developed. The corresponding roll-cladding technology was optimized by the experiments. The varying regularity of thickness ratio in the rolling process of Cu-Al thin sheet was studied. The change in the Cu-Al interface was investigated by adopting different annealing technologies. The results show that the critical rolling reduction rate for AlCu cladding decreases with increasing the thickness proportion of Cu. The reduction rate of Al and Cu is proportional to total reduction rate. With the increase of the rolling reduction rate of Al and Cu, the reduction rate of Cu and Al also increases. Annealing can enhance the bending performance of the thin sheet. However, when the annealing temperature is too high, the hard and brittle intermetallic compounds form at the interface of Cu and Al, which will deteriorate the bonding strength of Cu-Al cladding sheet.

Publisher

IOP Publishing

Subject

General Medicine

Reference6 articles.

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1. How to Obtain High Load-Bearing Al-Cu Joints by Nanoscale Sculpturing;Journal of The Electrochemical Society;2024-04-01

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