Plunge dampener

Details Plunge dampener Plunge dampener

1977-04-28

1978-12-12

Truhe, J. V.

Electric heating

Metal heating

For bonding with pressure

B23K 920

Patent

active

041297709

ABSTRACT:
Apparatus for welding studs to workpieces by a drawn-arc welding technique is provided. The apparatus includes a stud welding tool having a plunge dampener mounted on the rear end thereof for dampening the plunge stroke of the stud during the welding cycle. The plunge dampener includes a rolling diaphragm which reduces friction. The plunge dampener also incorporates both vacuum and pressure for dampening the plunge stroke of the stud.

REFERENCES:
patent: 2424901 (1947-07-01), Richolt
patent: 2794868 (1957-06-01), McMorran
patent: 3242307 (1966-03-01), Mowry et al.
patent: 3313910 (1967-04-01), Sciaky
patent: 3723698 (1973-03-01), Logan
patent: 4019001 (1977-04-01), Krueger

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