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Firing channel fixation method for air bag cover, involves forming firmly bonded connection between joint surfaces of pre-joint by laser welding, where welding pressure is provided by joint, which positions and fixes channel at cover
Firing channel fixation method for air bag cover, involves forming firmly bonded connection between joint surfaces of pre-joint by laser welding, where welding pressure is provided by joint, which positions and fixes channel at cover
The method involves forming a pre-joint for positioning and fixing a firing channel (2) at an air bag cover (1). The channel and the cover contact each other within a ring-shaped joint region enclosing a predetermined breaking line by a force-fit/form-fit connection of the pre-joint. A firmly bonded connection is formed between the joint surfaces of the pre-joint by laser welding, where the welding pressure is provided by the pre-joint. An independent claim is also included for an assembly including an air bag cover with an integrated predetermined breaking line and a firing channel.
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