Rotative tool for repairing electrodes for spot welding

Details Rotative tool for repairing electrodes for spot welding Rotative tool for repairing electrodes for spot welding

1988-10-07

1989-08-15

Briggs, William

Gear cutting, milling, or planing

Milling

Means to remove scale or raised surface imperfection

219119, 407 42, 409181, B23C 312

Patent

active

048569496

ABSTRACT:
In a spot welding to effect welding overlaid metal plates clamped by two opposite electrodes to which greater current is applied, tips of the electrodes are frustoconically shaped. Rotative tool (1) having recesses (H, J) respectively of reverse frustoconical shapes is provided with edged portions of notched portions formed by notching radially the peripheral wall thereof and through holes provided at the notched portions. Cut powder generated when the electrodes are cut is dropped off downward from the through holes. Tip ends on ceiling surfaces of the electrodes are cut at the same time by edged portion formed at upper edges (3) provided at the diameter of an extended portion (61) formed by extending over perforated bottoms of the recesses.

REFERENCES:
patent: 2284483 (1942-05-01), Whitesell, Jr.
patent: 2286931 (1942-06-01), Radeke
patent: 2418767 (1947-04-01), Hall
patent: 2638817 (1953-05-01), Hall
patent: 2930289 (1960-03-01), Swarts
patent: 3820437 (1974-06-01), Dyer et al.

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