Spot welding method and apparatus having weld electrode lock-up
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United States of America Patent
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May 19, 1992
Grant Date -
N/A
app pub date -
Sep 24, 1990
filing date -
Sep 24, 1990
priority date (Note) -
Expired
status (Latency Note)
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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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