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The Effect of Grain Refinement by Ti Addition on Brazing Characteristic of 4343/3003/4343 Aluminum Clad Sheet  

Shin, Je-Sik (Liquid Metal Processing & Casting Technology R & D Group, Korea Institute of Industrial Technology)
Moon, Byung-Moon (Liquid Metal Processing & Casting Technology R & D Group, Korea Institute of Industrial Technology)
Publication Information
Journal of Korea Foundry Society / v.30, no.5, 2010 , pp. 187-195 More about this Journal
Abstract
In this study, in order to obtain a useful guide line for design and production of automotive heat exchanger components made of 4343/3003/4343 aluminum clad sheets, it was aimed to improve the understanding about the grain refinement effect on brazing characteristic of the clad sheets. Al-10Ti master alloy was used for grain refinement of 3003 core alloy, and the Ti inoculation level was systematically changed up to 0.1 wt%. The three-layer aluminum clad sheets were fabricated by hot roll bonding process. The effect of grain refinement on brazing characteristic of the clad sheets was investigated by evaluating wettability, bonding strength and sagging resistance.
Keywords
Aluminum; Clad sheet; Grain refinement; Wetting; Bonding strength; Sagging;
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