Welding gun control method

Details Welding gun control method Welding gun control method

1997-05-29

1999-02-09

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219 8633, B23K 1110

Patent

active

058697993

ABSTRACT:
Positions where the pair of electrode chips are in contact with each other are regarded as reference positions. Desired starting positions where the tips of the pair of electrodes are slightly apart from the surfaces of a workpiece are determined on the basis of the reference positions X taking into consideration the thickness d of the workpiece. The electrode chips are moved to the desired starting position. The electrode chips are moved at a predetermined low speed until contact positions where the electrode chips come into contact with the workpiece (20). The electrode chips are then moved at a predetermined speed from the contact positions to overshot positions where the workpiece is compressed between the electrode chips.

REFERENCES:
patent: 4841113 (1989-06-01), Hamada et al.
patent: 5340960 (1994-08-01), Takasaki et al.
patent: 5449875 (1995-09-01), Ito et al.
patent: 5484975 (1996-01-01), Itatsu

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