Spot welding apparatus and a method for controlling the apparatu

Details Spot welding apparatus and a method for controlling the apparatu Spot welding apparatus and a method for controlling the apparatu

1997-07-03

2000-06-06

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219 8641, B23K 1100

Patent

active

060721456

ABSTRACT:
A spot welding apparatus having a pressing axis to which a mechanical impedance control device is provided. The mechanical impedance control device includes a welding condition instruction device, a pressing axis control device, and a mechanical impedance calculation device. A method for controlling the spot welding apparatus, wherein for welding relatively thin plates, the mechanical impedance is controlled to be low, and for welding relatively thick plates, the mechanical impedance is controlled to be high.

REFERENCES:
patent: H703 (1989-11-01), Repperger et al.
patent: 3727822 (1973-04-01), Umbaugh
patent: 5582747 (1996-12-01), Sakai et al.

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