Detachable ring welding knurling.

摘要

Name of the invention: detachable annular electrode.The invention relates to a welding knurling (1) for welding metal plates (50, 52). The knurling (1) comprises at least one disc (2) of a first material and a ring (4) of a second material different from the first material, and an assembly device for installing the ring (4) on the disc (2).Abstract figure: Figure 1