Capacitor discharge process for welding braided cable

Electric heating – Metal heating – By arc

Patent

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Details

219 5622, 219 93, 219 96, B23K 922

Patent

active

054573017

ABSTRACT:
A capacitor discharge process for welding a braided cable formed from a plurality of individual cable strands to a solid metallic electrically conductive member comprises the steps of: (a) preparing the electrically conductive member for welding by bevelling one of its end portions while leaving an ignition projection extending outwardly from the apex of the bevel; (b) clamping the electrically conductive member in a cathode fixture; (c) connecting the electrically conductive member clamped in the cathode fixture to a capacitor bank capable of being charged to a preselected voltage value; (d) preparing the braided cable for welding by wrapping one of its end portions with a metallic sheet to form a retaining ring operable to maintain the individual strands of the braided cable in fixed position within the retaining ring; (e) clamping the braided cable and the retaining ring as a unit in an anode fixture so that the wrapped end portion of the braided cable faces the ignition projection of the electrically conductive member; and (f) moving the cathode fixture towards the anode fixture until the ignition projection of the electrically conductive member contacts the end portion of the braided cable thereby allowing the capacitor bank to discharge through the electrically conductive member and through the braided cable and causing the electrically conductive member to be welded to the braided cable via capacitor discharge action.

REFERENCES:
patent: 2874264 (1959-02-01), Quinlan
patent: 3325621 (1967-06-01), Conrad
patent: 3402466 (1968-09-01), Phillips
patent: 3539762 (1970-11-01), Swengel, Sr. et al.
patent: 3634649 (1972-01-01), Rager et al.
patent: 3703623 (1972-11-01), Swengel, Sr.
patent: 3934786 (1976-01-01), Kozak et al.
patent: 4038743 (1977-08-01), DuRocher et al.

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