Patent ID: 9651345
Date: 2017-05-16
CPC Classifications: B21J,B21K,B23P,B60R,F42B,Y10T

Claim:
1. A method for producing a ring-shaped or plate-like element for a metal-sealing material-feedthrough for a plurality of devices which are subjected to high pressures, said method comprising the steps of: providing a blank made of a high grade steel and copper alloy; subjecting said blank to a processing so that a feedthrough-opening is incorporated into said 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 of said blank including incorporation of a relief region having a height HF and extending from said back side toward said front side, said relief region formed using a process of cold-forming the high grade steel and copper alloy; said relief region having a diameter that is less than an overall diameter of said ring-shaped or plate-like element; and said ring-shaped or plate-like element having a reduced thickness region DR in said relief region that is less than the overall thickness D of said ring-shaped or plate-like element; punching through said reduced thickness region DR to form said feedthrough-opening; and inserting a sealing material into the feedthrough-opening; said process of cold forming including the sub-steps of: