Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making porous product
Patent
1989-12-08
1993-04-20
Lawrence, Evan
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Making porous product
264 23, 264 25, 264 60, 264 69, 264 71, 264113, 264128, 419 5, 419 10, B22F 702, B29C 3502, B29C 6702, C04B 3564
Patent
active
052040550
ABSTRACT:
A process for making a component by depositing a first layer of a fluent porous material, such as a powder, in a confined region and then depositing a binder material to selected regions of the layer of powder material to produce a layer of bonded powder material at the selected regions. Such steps are repeated a selected number of times to produce successive layers of selected regions of bonded powder material so as to form the desired component. The unbonded powder material is then removed. In some cases the component may be further processed as, for example, by heating it to further strengthen the bonding thereof.
REFERENCES:
patent: 4247508 (1981-01-01), Housholder
patent: 4575330 (1986-03-01), Hull
patent: 4665492 (1987-05-01), Masters
patent: 4791022 (1988-12-01), Graham
patent: 4818562 (1989-04-01), Arcella et al.
patent: 4863538 (1989-09-01), Deckard
patent: 4929402 (1990-05-01), Hull
patent: 5121329 (1992-06-01), Crump
patent: 5147587 (1992-09-01), Marcus et al.
Deckard, C. and Beaman, J., "Solid Freeform Fabrication and Selective Powder Sintering", NAMRAC Proceedings, Symposium #15, undated.
Kodama, H., "Automatic Method for Fabricating a Three-Dimensional Plastic Model with Photo-Hardening Polymer", Review of Scientific Instruments, vol. 52, No. 11, Nov. 1981.
Wohlers, Terry, "Creating Parts by the Layers", Cadence, Apr., 1989, pp. 73-76.
Cima Michael J.
Haggerty John S.
Sachs Emanuel M.
Williams Paul A.
Lawrence Evan
Massachusetts Institute of Technology
O'Connell Robert F.
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