Method and machine for electrical resistance roll seam welding w

Details Method and machine for electrical resistance roll seam welding w Method and machine for electrical resistance roll seam welding w

1984-01-25

1985-08-20

Envall, Jr., Roy N.

Electric heating

Metal heating

For bonding with pressure

219 81, B23K 1106

Patent

active

045366365

ABSTRACT:
In a method for electrical resistance roll seam welding with a single electrode-wire, wherein the electrode-wire runs over first and second electrode carrier-rolls urged against each other, and the strength of the electrode-wire is increased by rolling-out before it enters the first electrode carrier-roll, elongations of the electrode-wire which can otherwise arise and lead to a slippage of the electrode-wire at the welding point and therefore, deleteriously affect the weld-quality can be largely prevented by reducing the electrode-wire temperature at the welding-point by cooling with a cooling device (17) the electrode-wire (12) between its rolling-out point (17/18) and its passage onto the first electrode carrier-roll (14) and/or between its departure from electrode carrier-roll (14) and its passage onto the second electrode carrier-roll (15).

REFERENCES:
patent: 3504155 (1970-03-01), Opprecht et al.
patent: 4258245 (1981-03-01), Flaherty
patent: 4334138 (1982-06-01), Matsuno et al.

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