Beam welding process

Details Beam welding process Beam welding process

1989-06-01

1990-04-03

Albritton, C. L.

Electric heating

Metal heating

By arc

21912164, 21912177, B23K 900

Patent

active

049142682

ABSTRACT:
A three stage beam welding method is provided which is particularly useful for reliably joining two bulky, irregularly configured workpieces requiring a deep weld. The method is especially well suited for joining a piece to replace a broken or damaged portion of a tool to the tool body. In accordance with the present method, a first high energy beam is applied to the joint between the workpieces to penetrate the joint and to produce at least one undercut on the workpiece exterior surface, an optional second high energy beam is substantially simultaneously applied to the joint to smooth and flatten the undercut, and a third high energy beam is applied to the joint to heat treat the welded joint, thereby improving its metallic microstructure and mechanical properties. The three stages of this beam welding process may be repeated sequentially for the number of times required to produce a mechanically optimal, reliable joint between two particular workpieces.

REFERENCES:
patent: 3230339 (1966-01-01), Opitz et al.
patent: 3417223 (1968-12-01), Steigerwald
patent: 3763721 (1973-10-01), Fuyakubo
patent: 4045646 (1977-08-01), Lichte
patent: 4229638 (1980-10-01), Lichte
patent: 4272665 (1981-06-01), Steigerwald
patent: 4409462 (1983-10-01), Jahnke
patent: 4644127 (1987-02-01), LaRocca

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