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ALUMINUM ALLOY PLATE FOR SUPER PLASTIC FORMING, ALUMINUM ALLOY TUBE AND ITS SUPER PLASTIC FORMED BODY
ALUMINUM ALLOY PLATE FOR SUPER PLASTIC FORMING, ALUMINUM ALLOY TUBE AND ITS SUPER PLASTIC FORMED BODY
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机译：用于超塑性成形的铝合金板，铝合金管及其超塑性成形体
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摘要
PROBLEM TO BE SOLVED: To obtain a wide width aluminum alloy plate for super plastic forming and to integrally form a large formed body by subjecting rolled plates of super plastic aluminum alloy each other to solid-state welding. ;SOLUTION: Solid-state welding is a joining method not remaining a solidified structure to a joining part. It is preferable for solid-state welding to use friction agitation welding, flash butt welding, DC butt welding, resistance welding. A super plastic aluminum alloy is either of Al-Mg alloy, Al-Zn-Mg alloy, Al-Zn-Mg- Cu alloy, Al-Cu alloy, Al-Li alloy, Al-Mg-Si alloy, Al-Si alloy, etc., a recrystallization grain is refined, a grain size is preferably ≤30 μm. The material, refined by static recrytallization is subjected to a grain refining treatment to have a grain size of ≤40 μm, or a cold rolling of a draft of ≥40% or softening annealing to a degree not generating recrsytallization in a process to produce a rolled plate.;COPYRIGHT: (C)2000,JPO
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