Patent ID: 8469255
Filing Date: 2013-06-25
Classification: B23K,C21D,C22C,C22F

Abstract:
1. A method for assembling aluminum alloy parts, comprising: (i) obtaining at least a first aluminum alloy part in a solution heat treated, quenched, optionally cold worked, and naturally aged at ambient temperature and/or pre-aged temper, and at least a second aluminum alloy part, (ii) welding said parts to obtain a welded assembly having a welded zone, (iii) cold working the entire welded zone from 0.3% to 5%, (iv) post-weld aging the cold worked welded assembly to obtain a final metallurgical temper wherein said post-weld aging is performed from 120° C. to 200° C. for 10 to 60 hours.