Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making porous product
Patent
1994-06-13
1997-07-15
Jordan, Charles T.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Making porous product
419 7, 419 36, 419 37, 75228, 75255, 295271, 29DIG24, 29DIG47, 266200, 266236, B22F 100, B22F 310, B22F 702
Patent
active
056492774
ABSTRACT:
An apparatus and process for the free-forming manufacture of three-dimensal components. A powder-binder mixture, or a material with a high melting point, is plasticized or made molten, by raising the temperature inside a process chamber. The resulting molten material is discharged under pressure through a nozzle which is arranged at the end of the process chamber. The material inside the process chamber is deposited in layers. The processing direction and processing speed of the nozzle are programmed. An embodiment of the invention is disclosed in which a non-molten powder is deposited and supported by the deposition of a second powder alongside the non-molten powder.
REFERENCES:
patent: 4721599 (1988-01-01), Nakamura
patent: 5074532 (1991-12-01), Ducrocq et al.
patent: 5122632 (1992-06-01), Kinkelin
patent: 5433280 (1995-07-01), Smith
patent: 5529471 (1996-06-01), Khoshevis
Geiger Martin
Greul Mathias
Melchior Klaus
Pintat Theo
Staskewitsch Ewald
Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung
Jenkins Daniel
Jordan Charles T.
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