Method for producing a ring-shaped or plate-like element

摘要

The invention relates to a method for producing a ring-shaped or plate-like element, in particular for a metal-sealing material-feedthrough, in particular for devices which are subjected to high pressures, preferably igniters for airbags or belt tensioning devices, whereby a blank, especially in the embodiment of a wire-shaped material is provided and the blank is subjected to processing so that a feedthrough-opening can be incorporated into a ring-shaped or plate-like element created from the blank.

主权项

1. A method to produce a cylindrical metal-sealing material-feedthrough, said method comprising the steps of:
producing a cylindrical plate-like body by providing a blank; processing said blank so that a feedthrough-opening is incorporated into a ring-shaped or plate-like element created from said blank, said feedthrough-opening extending from a back side of said blank to a front side of said blank, said processing step including forming a relief region in said blank extending from said back side toward said front side using a cold forming process, the relief region having a height HF, the step of forming the relief region defining a reduced thickness region DR, said reduced thickness region DR having a thickness being not greater than 3 mm; punching through the reduced thickness region DR to form the feedthrough-opening; producing a sealing material including at least one metal pin embedded in said sealing material; and inserting said sealing material with said at least one metal pin into said feedthrough-opening extending from said back side to said front side of said ring-shaped or plate-like element.