Process for seam welding an overlapping sheet-metal seam

Details Process for seam welding an overlapping sheet-metal seam Process for seam welding an overlapping sheet-metal seam

1995-05-17

1997-04-22

Walberg, Teresa J.

Electric heating

Metal heating

Of cylinders

219 67, 219 83, B23K 1106

Patent

active

056226373

ABSTRACT:
In a seam welding process for overlapping sheets, in particular for welding can bodies, the welding force is momentarily reduced upon each insertion of a can body between the welding rollers. This keeps the welding pressure constant even at the start of a can body. In this way the power input to the sheet can be kept constant even at the start of a can body, and the weld quality even at the start of a can body satisfies requirements.

REFERENCES:
patent: 32251 (1986-09-01), Matsuno et al.
patent: 2892068 (1959-06-01), Park et al.
patent: 3305662 (1967-02-01), Praeg
patent: 3591756 (1971-07-01), Timko
patent: 3632949 (1972-01-01), Thorne
patent: 4376884 (1983-03-01), Gold et al.
patent: 4389556 (1983-06-01), Nozawa et al.
Abstract SU-A01 815 069 (Gulyaev I V).

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