Aluminum alloy products suited for commercial jet aircraft wing

Details Aluminum alloy products suited for commercial jet aircraft wing Aluminum alloy products suited for commercial jet aircraft wing

1995-05-26

1999-02-02

Ip, Sikyin

Metal treatment

Stock

Aluminum base

148438, 148440, 148690, 148693, 148694, 148701, 420533, 244123, 244124, C22C 2106

Patent

active

058659110

ABSTRACT:
Rolled plate products up to 6 inches thick or more and other products in an aluminum alloy consisting essentially of about 5.2 to 6.8% zinc, 1.7 to 2.4% copper, 1.6 to 2% magnesium, 0.03 to 0.3% zirconium, balance substantially aluminum and incidental elements and impurities, are useful in making structural members for commercial airplanes especially by machining or shaping such members from the plate. Such members include lower wing skins and wing spars and other members. The plate is made by operations comprising homogenization, hot rolling, solution heat treatment, stretching and artificial aging. Alternatively, the plate is shaped after stretching, which may include machining, and is then artificially aged.

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