Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1989-09-05
1990-07-31
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
1562728, 21912166, 2191218, 21912185, 264 58, 264113, 264125, 425174, B27N 300, B32B 3100, B23K 900, B29C 6700
Patent
active
049448170
ABSTRACT:
A method and apparatus for selectively sintering a layer of powder to produce a part comprising a plurality of sintered layers. The apparatus includes a computer controlling a laser to direct the laser energy onto the powder to produce a sintered mass. The computer either determines or is programmed with the boundaries of the desired cross-sectional regions of the part. For each cross-section, the aim of the laser beam is scanned over a layer of powder and the beam is switched on to sinter only the powder within the boundaries of the cross-section. Powder is applied and successive layers sintered until a completed part is formed. Preferably, the powder comprises a plurality of materials having different dissociation or bonding temperatures. The powder preferably comprises blended or coated materials.
REFERENCES:
patent: 2076952 (1937-04-01), Kratky
patent: 3848104 (1974-11-01), Locke
patent: 3985995 (1976-10-01), Brandi et al.
patent: 4117302 (1978-09-01), Earle et al.
patent: 4135902 (1979-01-01), Oehrle
patent: 4270675 (1981-06-01), Wicks et al.
patent: 4300474 (1981-11-01), Livsey
patent: 4323756 (1982-04-01), Brown et al.
patent: 4474861 (1984-10-01), Ecer
patent: 4540867 (1985-09-01), Ackerman
patent: 4575330 (1986-03-01), Hull
patent: 4587396 (1986-05-01), Rubin
patent: 4752352 (1988-06-01), Feygin
patent: 4818562 (1989-04-01), Arcella et al.
patent: 4863538 (1989-09-01), Deckard
Chicago Enterprise, vol. I, No. II (May 1987).
Crain's Chicago Business (1987).
Machine and Tool Blue Book, "Laser-Cut-Laminations Form Complex Parts", (4/87).
Laser Focus/Electro-Optics, p. 41, (Jun. 1987).
Inside R&D The Weekly Report on Technical Innovation, vol. 16, No. 19, (5/13/87).
Immediate Production of 3-D Objects, Hydronetics, Inc.
Lasers Carve Complex 3-D Parts (pp. 1-11).
Sample Cover Letter from Hydronetics, Inc.
Electrical Engineering, Times, Issue 430 (Apr. 20, 1987).
Takei et al., (May 1980), J. Appl. Phys., 51:2903-2908.
Fudim, "Sculpting Parts With Light", Machine Design, Mar. 6, 1986.
Deckard, "Part Generation by Layerwise Selective Sintering", May 1986.
Leont'ev, "Lazernaja Poverhnostnaja Obrabotka Metallov I Splavov", (1986) pp. 120-123 (partial translation included).
Deckard, et al., "Recent Advances in Selective Laser Sintering", Presented at 14th Conf. on Production Research and Technology (U. of Mich. 1987) pp. 447-451.
Deckard, et al., "Solid Freeform Fabrication and Selective Powder Sintering", Presented at NAMRACIS (1987) pp. 636-640.
Deckard, et al., "Process and Control Issues in Selective Laser Sintering ", Measurement and Control in Manufacturing (ASME, 1988) pp. 191-197.
"Device Quickly Builds Models of a Computer's Designs", New York Times (Mar. 16, 1988) p. 46.
"`Revolutionary`--Machine Makes 3--D Objects from Drawings", Austin--American Stateman (Dec. 4, 1987).
Barlow Joel W.
Beaman Joseph J.
Bourell David L.
Deckard Carl R.
Marcus Harris L.
Board of Regents , The University of Texas System
Powell William A.
LandOfFree
Multiple material systems for selective beam sintering does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiple material systems for selective beam sintering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple material systems for selective beam sintering will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1397168