Method and apparatus for welding workpieces made of superalloys

Details Method and apparatus for welding workpieces made of superalloys Method and apparatus for welding workpieces made of superalloys

1992-12-21

1994-06-07

Shaw, Clifford C.

Electric heating

Metal heating

By arc

219 7615, B23K 9235

Patent

active

053191790

ABSTRACT:
Apparatus for the deposition welding or the joint welding of a workpiece made of a superalloy by an arc welding process in which the workpiece is supported in a protective-gas container into which is placed a welding electrode and an induction coil for preheating the workpiece. Material of the same type of the workpiece is applied to the surface of the workpiece or to a welding joint thereof by arc welding produced by the welding electrode. The apparatus and associated method are particularly suitable for repairing age-hardened superalloys of engine blades.

REFERENCES:
patent: 2184534 (1939-12-01), Smith et al.
patent: 2819517 (1958-01-01), Pursell
patent: 4141127 (1979-02-01), Cretella et al.
patent: 4574172 (1986-03-01), Burack et al.
patent: 4859489 (1989-08-01), Pinkhasoy

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