Resistance spot welding gun with weld quality detection feature

Details Resistance spot welding gun with weld quality detection feature Resistance spot welding gun with weld quality detection feature

1984-05-29

1985-09-17

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219 89, B23K 1124

Patent

active

045422770

ABSTRACT:
A method and apparatus are disclosed for detecting weld nugget growth on a workpiece during a welding operation using a resistance spot welding gun. In the preferred embodiment, a piston rod is slidably mounted in a cylinder and is connected at one end to an electrode of the gun. The opposite end of the piston rod extends rearwardly through the cylinder and is coupled to a sensor assembly for detecting the amount of movement of the piston rod created by weld nugget growth on the workpiece during the welding cycle.

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patent: 4419558 (1983-12-01), Stiebel
Nied, "The Finite Element Modeling of the Resistance Spot Welding Process", Welding Research Supplement, pp. 123-132 (Apr., 1984).

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