Invention Grant
- Patent Title: Application of surface relief to spot welding electrodes
- Patent Title (中): 表面浮雕应用于点焊电极
-
Application No.: US12605531Application Date: 2009-10-26
-
Publication No.: US08350179B2Publication Date: 2013-01-08
- Inventor: James G. Schroth , David R. Sigler
- Applicant: James G. Schroth , David R. Sigler
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Reising Ethington P.C.
- Main IPC: B23K11/00
- IPC: B23K11/00 ; B24B1/00 ; B23H1/00

Abstract:
The workpiece-contacting surface of the spot welding electrode may be suitably modified to incorporate a desired shape or form, generally comprising a depressed region outlining a recognizable shape, to form aesthetically-pleasing or functional features in the surface of a workpiece during resistance spot welding. Methods for creating the desired form in the spot welding electrode including abrasion, upsetting, and electrical discharge machining are disclosed. Preferably the electrode face is shaped and subsequently redressed during welding operations at the welding station.
Public/Granted literature
- US20110094999A1 APPLICATION OF SURFACE RELIEF TO SPOT WELDING ELECTRODES Public/Granted day:2011-04-28
Information query