Containerless method of producing crack free metallic articles b

Details Containerless method of producing crack free metallic articles b Containerless method of producing crack free metallic articles b

1996-03-22

1999-05-04

Mills, Gregory L.

Electric heating

Metal heating

By arc

21912185, 219 761, 148525, B23K 2600

Patent

active

059001704

ABSTRACT:
A containerless method of producing a crack free metallic article of near-net shape includes melting a filler material into a metallic substrate or seed under conditions chosen to preclude cracking. In a preferred embodiment of the invention, a laser beam is operated at a relatively low power density and at a relatively large beam diameter at the substrate surface for an extended length of time to produce a molten pool with a low aspect ratio. Near-net shape is achieved by applying the process in a closed-loop, multi-axis material deposition system.

REFERENCES:
patent: 4028787 (1977-06-01), Cretella et al.
patent: 4122240 (1978-10-01), Banas et al.
patent: 4232094 (1980-11-01), Rhodes et al.
patent: 4269868 (1981-05-01), Livsey
patent: 4323756 (1982-04-01), Brown et al.
patent: 4382169 (1983-05-01), Rabkin et al.
patent: 4644127 (1987-02-01), La Rocca
patent: 4743733 (1988-05-01), Mehta et al.
patent: 4804815 (1989-02-01), Everett
patent: 4878953 (1989-11-01), Saltzman et al.
patent: 4927992 (1990-05-01), Whitlow et al.
patent: 4940390 (1990-07-01), Clark et al.
patent: 4944817 (1990-07-01), Bourell et al.
patent: 5038014 (1991-08-01), Pratt et al.
patent: 5113582 (1992-05-01), Monson et al.
patent: 5135695 (1992-08-01), Marcus
patent: 5147999 (1992-09-01), Dekumbis et al.
patent: 5160822 (1992-11-01), Aleshin
patent: 5193272 (1993-03-01), Wortmann et al.
patent: 5208431 (1993-05-01), Uchiyama et al.
patent: 5273204 (1993-12-01), Dalal et al.
patent: 5291937 (1994-03-01), Corderman et al.
patent: 5308409 (1994-05-01), Kamimura et al.
patent: 5312584 (1994-05-01), Frasier et al.
patent: 5393482 (1995-02-01), Benda et al.
patent: 5554837 (1996-09-01), Goodwater et al.
Gary Lewis, Los Alamos National Laboratory, Los Alamos, NM, "Laser Beam Fuses Metal Particles One LAyer At A Time", Advanced Materials & Processes, Nov. 1994.
"Rapid Prototyping Key To Fast Development", R&D Magazine, May 1994, pp. 55-56.
F. Staub et al., "An Alternative Process For The Manufacture Of Single Crystal Gas Turbine Blades", Sulzer Technical Review, Mar. 1988, pp. 11-16.
"Machining In 3-D", Aviation Week and Space Technology, Jan. 24, 1994, International Product News, vol. 140, No. 4, p. 69.
Schweissen Und Schneiden, vol. 47, No. 3, Mar. 1995, Dusseldorf, DE, pp. 220-223, XP000493794 H. Haferkamp et al.: "3D-Laserstrahl-Pulver-Auftragschweissen . . . ".
Laser Praxis, No. 2, Oct. 1990, Munchen, DE, pp. LS 101, LS 104-LS 106, XP000171951 K. G. Thiemann et al.: "Reparaturbeschichten . . . " (Translation Attached).

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