Apparatus for reprocessing spot welding electrodes

Details Apparatus for reprocessing spot welding electrodes Apparatus for reprocessing spot welding electrodes

1988-03-14

1990-04-17

Spruill, Robert L.

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

72359, B21D 316, B21D 3700

Patent

active

049169319

ABSTRACT:
In apparatus according to the present invention, re-forming takes place in a single operation. The forming device contains a die extended by a hollow cylindrical die area and includes a punch which is surrounded by an outer punch which is advanced under the tension of a spring and fits into the hollow cylindrical die area. A conical centering area is located upstream of the hollow cylindrical die area. Used spot welding electrodes of different lengths and pronounced deformation can be restored several times with this forming tool.

REFERENCES:
patent: 3078566 (1963-02-01), Egan
patent: 3108502 (1963-10-01), Chatfield
patent: 3186209 (1965-06-01), Friedman
patent: 3280613 (1966-10-01), Schrom
patent: 4249408 (1981-10-01), Lovell
patent: 4423617 (1984-01-01), Nippert
patent: 4682487 (1987-07-01), Kaeseler

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