Crush zone and method for introducing crush zone into...

Details Crush zone and method for introducing crush zone into... Crush zone and method for introducing crush zone into...

2006-02-07

2006-02-07

Gutman, H. (Department: 3612)

Typesetting

Setting machines

Converging chutes

Reexamination Certificate

active

06994350

ABSTRACT:
The present invention involves a method to produce crush zones in aluminum structures using controlled application of retrogression heat treatment. Selected areas of a tubular rail are retrogression heat treated to locally lower the tensile yield strength. As a result, during a crash event, initial deformation is localized in the crush zone enabling the crush pattern to be designed directly into the structure.

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