Method of welding laminates each having the structure of metal l

Details Method of welding laminates each having the structure of metal l Method of welding laminates each having the structure of metal l

1986-07-11

1987-03-17

Goldberg, E. A.

Electric heating

Metal heating

For bonding with pressure

219 912, B23K 1116

Patent

active

046509518

ABSTRACT:
A method of resistance-welding two laminates each having a basic structure of a metal layer/a thermally softenable insulating layer/a metal layer, which allows welding with excellent welding strength and good outer appearance of a welded spot. In this method, two laminates are prepared in which each metal layer has a thickness of 0.02 to 0.5 mm, and a ratio of the total thickness of the metal layers of each laminate to the thickness of the laminate falls within a range between 1/3 and 2/3. Electrodes held at a temperature above the softening temperature of the insulating layers are urged against the laminates to soften the insulating layers and so bring the metal layers into contact with each other and to resistance-weld the laminates.

REFERENCES:
patent: 3155809 (1964-11-01), Griswold
patent: 3909581 (1975-09-01), Stone et al.
patent: 4313996 (1982-02-01), Newman et al.
U.S. patent application Ser. No. 559,239, filed Jun. 21, 1966.

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