Method of forming weld bead of pure copper on ferroalloy base ma

Details Method of forming weld bead of pure copper on ferroalloy base ma Method of forming weld bead of pure copper on ferroalloy base ma

1991-04-03

1993-07-27

Padgett, Marianne

Metal treatment

Process of modifying or maintaining internal physical...

Producing or treating layered, bonded, welded, or...

148524, 148525, 148529, 148532, 148536, 427556, 427597, 427540, 427580, 21912117, 21912159, 21912166, B05D 306, B23K 1500, B23K 900, B23K 2600

Patent

active

052307565

ABSTRACT:
In forming a weld bead of pure copper on a ferroalloy base material by laying a powder of copper and melting the powder by a high density energy source such as laser beams, TIG arc or electron beams, the powder of copper is beforehand mixed with a powder of an auxiliary metal having a higher melting point than pure copper. In order to ensure the substantial purity in copper of the weld bead, the powder mixture should not include more than 16 wt % nickel.

REFERENCES:
patent: 2427517 (1947-09-01), Wilson et al.
patent: 4267241 (1981-05-01), Mahrus et al.
patent: 4818307 (1989-04-01), Mori et al.
patent: 4832982 (1989-05-01), Mori et al.
Welding Production, 31(1984)Jul., No. 7, Cambridge, Great-Britain "Plasma-electroslag Deposition of Copper on Steel", (2 pages).
English Abstract of Japanese Patent Application No. 58-89262, vol. 9, No. 87, (M-372) (1810), Apr. 17, 1985.

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