Method for relieving residual stresses by build-up welding over

Details Method for relieving residual stresses by build-up welding over Method for relieving residual stresses by build-up welding over

1984-02-17

1986-04-29

Albritton, C. L.

Electric heating

Metal heating

For deposition welding

219 591, B23K 904

Patent

active

045859175

ABSTRACT:
The outer surface of a butt-welded joint is build-up welded such that a ratio h/t is higher than approximate 0.2 and a ratio L/.sqroot.Rt is higher than approximate 1, where h denotes height of a build-up welded portion; t, wall thickness of a pipe; L, width of the build-up welded portion; and R, radius of the pipe. As a result, the residual stresses in the build-up welded portion counterbalances the residual stresses in the welded joint, whereby the residual stresses at the inner surface of the welded joint can be relieved.

REFERENCES:
patent: 4049186 (1977-09-01), Hanneman et al.

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