Abstract: An airbag inflator assembly is disclosed that includes a container containing a charge of pressurized gas and having a peripheral surface surrounding an opening in the container. A burst disc member has one side capacitive discharge welded to the peripheral surface of the container to seal the opening and thus confine the pressurized gas within the container. An ignitor assembly includes an ignitor assembly housing and ignition elements constructed and arranged to generate sufficient force to break the seal formed by the burst disc member and release the pressurized gas from the container. The ignitor elements are disposed substantially within the ignitor assembly housing. The ignitor assembly housing is an integrally formed unitary construction capacitive discharge welded to a side of the burst disc member opposite to the one side.

Abstract: A method of manufacturing an airbag inflator assembly comprising placing a container, burst disc member, and housing for the ignitor assembly in a chamber; pressurizing the chamber to an appropriate pressure based upon a desired pressure to be contained within the container; applying force i) to urge a surface portion on one side of the burst disc member and the peripheral surface surrounding the opening in the container into forcible engagement with one another, and ii) to urge a surface portion on an opposite side of the burst disc member and an associated surface portion of the ignitor assembly housing into forcible engagement with one another; applying pulses of electrical discharge energy i) in the vicinity of the forcible engagement between the surface portion on one side of the burst disc member and the peripheral surface surrounding the opening in the container so that the surface portion on one side of the burst disc member and the peripheral surface surrounding the opening in the container are seali