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An investigation on diffusion bonding of aluminum to copper using equal channel angular extrusion process

By P. Eslami and A. Karimi Taheri

Abstract

A new method for production of bimetallic rods, utilizing the equal channel angular extrusion (ECAE) process has been introduced before by previous researchers, but no attempt has been made to assess the effect of different temperatures and holding times in order to achieve a diffusional bond between the mating surfaces. In present research copper sheathed aluminum rods have been ECAEed at room temperature and subsequently held at a constant ECAE pressure, at different temperatures and holding times to produce a diffusional bond between the copper sheath and the aluminum core. The bonding quality of the joints was examined by shear strength test and a sound bonding interface was achieved. Based on the results, a bonding temperature of 200 °C and holding time of 60–80 min yielded the highest shear strength value

Topics: Article
Publisher: North-Holland
OAI identifier: oai:pubmedcentral.nih.gov:3102181
Provided by: PubMed Central
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