Force limiting weld head

Details Force limiting weld head Force limiting weld head

1989-02-22

1990-07-10

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219 8661, B23K 1130

Patent

active

049408755

ABSTRACT:
A force limiting weld head (11) which includes a supporting structure (13), a pressure barrel (15) and an output member (17) mounted for movement on the supporting structure, a fixed electrode (19) mounted on the supporting structure, a movable electrode (21) driven by the output member, a coupling (23) for drivingly coupling the pressure barrel and the output member. The coupling includes a variable-volume chamber (89) and a piston (77) responsive to overtravel for varying the volume of the chamber.

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patent: 4680441 (1987-07-01), McKendrick
patent: 4733042 (1988-03-01), Nishiwaki et al.

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