Preliminary Investigations on Preparation of Cu-Al Bi-Metallic Tubes Using Swaging-Diffusion Method

Qing Le Hao; Jing Tao Han; Jing Jie Song; Shuai Ji

doi:10.4028/www.scientific.net/AMR.941-944.1822

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 941-944Preliminary Investigations on Preparation of Cu-Al...

Preliminary Investigations on Preparation of Cu-Al Bi-Metallic Tubes Using Swaging-Diffusion Method

Abstract:

Bi-metallic tubes (BMTs) combine performance advantages of two different tubes and are usually used in particular conditions where corrosion resistance is important. Traditionally, BMTs are manufactured by plastic processes such as extrusion, explosive welding/cladding, hydroforming and even combinations thereof. However, rotary swaging, which is commonly used to produce tubes, was seldom mentioned when preparing BMTs. In this work, Cu-Al BMTs were achieved using swaging-diffusion method (SDM). The effect of process on formability of BMTs are investigated. The experimental results indicate that with the increasing of deformation, metallurgical bonding layer, which is more desirable than mechanical bonding layer, can be achieved. And the metallurgical bonding layer will thicken to 2μm after diffusion. Besides, some failures produced in the swaging process are presented.

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Periodical:

Advanced Materials Research (Volumes 941-944)

Pages:

1822-1826

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.941-944.1822

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Online since:

June 2014

Authors:

Qing Le Hao, Jing Tao Han*, Jing Jie Song, Shuai Ji

Keywords:

Bi-Metallic Tube, Cu-Al, Failure, Formability, Swaging-Diffusion Method

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