Apparatus for reprocessing spot welding electrodes

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

B - Operations, Transporting

23

K

327/113, 327/90

B23K 35/40 (2006.01) B21C 25/00 (2006.01)

Patent

CA 1297168

ABSTRACT A forming tool is known in which highly deformed spot welding electrodes are successively re-formed in two different dies whilst retaining the use-conditioned diffusion layer. 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.

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