Apparatus suitable for use in the automatic welding of pipes

Details Apparatus suitable for use in the automatic welding of pipes Apparatus suitable for use in the automatic welding of pipes

1976-04-14

1979-01-02

Smith, Al Lawrence

Metal fusion bonding

Including applicator movable during fusion

With lateral oscillation along path of seam

228 29, B23K 3702

Patent

active

041323386

ABSTRACT:
The present invention relates to an apparatus suitable for use in the automatic welding of pipes. The apparatus according to the invention comprises a fixed part or rail band which is clamped around the pipe at a prefixed position and a moving part which is driven with an orbital motion along the rail band and supports a swinging welding torch, a welding rod feeding mechanism and a torch position adjusting mechanism. The swinging motion of the welding torch is produced by a pneumatic system which permits both the amplitude and the frequency of said swinging motion to be adjusted. It is also possible to produce high swing frequencies and various times of stoppage for the torch at the ends of the swinging motion.

REFERENCES:
patent: 3331545 (1967-07-01), Olivieri
patent: 3604612 (1971-09-01), Miller
patent: 3619552 (1971-11-01), Cape
patent: 3844468 (1974-10-01), Nelson et al.
patent: 3963895 (1976-06-01), Hennion

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