Selectively heat treated airbag canister and method for...

Details Selectively heat treated airbag canister and method for... Selectively heat treated airbag canister and method for...

B - Operations, Transporting

60

R

B60R 21/26 (2006.01)

Patent

CA 2350273

A selectively heat treated canister for use in a vehicle airbag deployment system is configured to contain combustion materials and to contain gases produced from the combustion thereof. The canister includes a tubular body having a length and a longitudinal axis. The body is formed as at least three drawn sections. Each prior section is drawn one more time than a successive adjacent section. The canister defines a closed end and an open end. The closed end is at a least drawn section and the open end is at a most drawn section. The canister defines a heat treated region and is selectively heat treated at at least one transition zone between adjacent drawn sections to reduce crack propagation observed during testing. A method for making the canister is also disclosed.

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