Spot welding method and apparatus having weld electrode lock-up

Details Spot welding method and apparatus having weld electrode lock-up Spot welding method and apparatus having weld electrode lock-up

1990-09-24

1992-05-19

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

2191171, B23K 1110

Patent

active

051151138

ABSTRACT:
A method and apparatus for single-sided resistance spot welding that prevents excessive weld indentation. A first flat part and a tubular part are clamped between welding electrodes with a predetermined welding force. A welding current is applied to the electrodes to heat the parts where the spot weld is made. One of the electrodes is locked from movement as welding current is applied to prevent that electrode from indenting into the heated weld zone.

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patent: 4073217 (1978-02-01), Colin
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patent: 4334624 (1982-06-01), Detmold
patent: 4619188 (1986-10-01), Kimura
patent: 4625836 (1986-12-01), Pigott
patent: 4793450 (1988-12-01), Savenijie
patent: 4812612 (1989-03-01), Perkins

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