Welding controller

Details Welding controller Welding controller

1993-04-27

1994-09-13

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219109, B23K 1124

Patent

active

053471059

ABSTRACT:
A controller for a welding machine which requires no change of control programs, even if there is any change in material, thickness or others of workpieces is provided. After start of welding, welding current and/or pinching force increase, until there occurs a phenomenon that interelectrode resistance shifts from an upward tendency to a downward tendency, and thereafter the values at this time are maintained. The values are proper, and proper welding is performed. This is achieved, irrespective of material, thickness or others of the workpieces, so that there is no need of changing control programs one by one.

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patent: 5111020 (1992-05-01), Stiebel

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