Apparatus for rotary bi-axle type friction welding

Details Apparatus for rotary bi-axle type friction welding Apparatus for rotary bi-axle type friction welding

1974-03-20

1976-05-04

Smith, Al Lawrence

Metal fusion bonding

Including means to provide heat by friction between...

156 735, 228112, B23K 2700

Patent

active

039542157

ABSTRACT:
This disclosure relates to an apparatus for friction welding wherein an improved friction welding of a first and a second workpieces are carried out in a manner such that welded and plasticized workpieces are rapidly synchronized and also a larger thrust is provided at only the end stage of the welding so that change of metallic structure of welded workpieces due to cooling which tends to cause cracks in the welded portion is prevented.
In order to carry out this improved friction welding, the apparatus for friction welding includes a second driving means for driving the second workpiece, detecting means for detecting the sum of the lengths of welded workpieces capable of providing a signal for interrupting the drive of the first workpiece and hydraulic systems capable of adjusting the thrust according to a signal from the detecting means.

REFERENCES:
patent: 3538592 (1970-11-01), Padilla
patent: 3549076 (1970-12-01), Mills
patent: 3595462 (1971-07-01), Mirayama
patent: 3623213 (1971-11-01), Sciaky et al.
patent: 3678566 (1972-07-01), Ellis et al.
patent: 3712528 (1973-01-01), Takagi et al.
patent: 3735910 (1973-05-01), Watson et al.
patent: 3743162 (1973-07-01), Gage
patent: 3750927 (1973-08-01), Miller et al.
patent: 3753820 (1973-08-01), Ishikawa et al.

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