Hardened aluminum alloy stock materials having continuous variat

Details Hardened aluminum alloy stock materials having continuous variat Hardened aluminum alloy stock materials having continuous variat

1994-06-21

1996-08-20

Simmons, David A.

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148698, 148437, 148438, 148439, 148440, 148902, 266102, 266103, 266104, C22F 104

Patent

active

055475248

ABSTRACT:
A planar sheet of structurally hardened aluminum alloy, having, after quenching and aging, mechanical strength which varies continuously in a particularly defined direction of the planar sheet. The planar sheet is produced in a process comprising quenching and final aging, where the final aging comprises heating for a defined period of time a first portion of the plate or sheet including a first edge to a first temperature T and a second portion of the plate or sheet including an opposite edge to a second temperature t<T.

REFERENCES:
patent: 4959107 (1990-09-01), Wallick, Jr. et al.

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