Method of making large structural one-piece parts of metal, part

Details Method of making large structural one-piece parts of metal, part Method of making large structural one-piece parts of metal, part

1974-04-16

1976-10-12

Truhe, J. V.

Electric heating

Metal heating

For deposition welding

B23K 904

Patent

active

039859959

ABSTRACT:
Very large diameter metal shafts for turbines and electric generators, and other large structural metal parts, can be made in one piece to a high quality without occlusions, cavities, segregations, and cracks by building the part up layer by layer, each layer being formed by deposition of molten metal by welding along neighbouring tracks which together cover the area over which the layer is to be deposited. The weld deposition of the metal may be effected by a welding head which is moved longitudinally along the part, and if the part is simultaneously rotated the metal is deposited along a helical path in forming a layer. A plurality of welding heads may be used so that metal is deposited simultaneously at different positions during the construction of each layer.

REFERENCES:
patent: 3071490 (1963-01-01), Pevar
patent: 3139505 (1964-06-01), Kirschning
patent: 3549410 (1970-12-01), Farmer
patent: 3579800 (1971-05-01), Packard
patent: 3624345 (1971-11-01), Armstrong
patent: 3665143 (1972-05-01), Ujiie

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