Laser-directed fabrication of full-density metal articles using hot isostatic processing

dc.contributor.assigneeBoard of Regents, The University of Texas System
dc.creatorDouglas W. Freitag
dc.creatorJoseph J. Beaman, Jr.
dc.creatorDavid L. Bourell
dc.date.accessioned2019-10-23T21:40:27Z
dc.date.available2019-10-23T21:40:27Z
dc.date.filed1995-11-27
dc.date.issued1997-06-17
dc.description.abstract" A method of fabricating a fully-dense three-dimensional metal article is disclosed. According to a first embodiment of the invention, the interior portion of the article is formed by way of selective laser sintering, in a cross-section of a layer of powder. After formation of the layer of powder, the laser is directed to form a gas-impervious skin around the interior portion of the article in that layer. The process is repeated, until the article is completed. The article surrounded by the skin is then subjected to hot isostatic pressing to densify the article; the skin, which serves as the ""can"" for the hot isostatic pressing, may or may not be removed from the article, as desired. According to a second embodiment of the invention, the can is formed first by way of laser generation, and is then filled with the metal powder, prior to hot isostatic pressing. "
dc.description.departmentBoard of Regents, University of Texas System
dc.identifier.applicationnumber8563220
dc.identifier.patentnumber5640667
dc.identifier.urihttps://hdl.handle.net/2152/77224
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/4313
dc.publisherUnited States Patent and Trademark Office
dc.relation.ispartofUniversity of Texas Patents
dc.relation.ispartofUniversity of Texas Patents
dc.rights.restrictionOpen
dc.rights.restrictionOpen
dc.subject.cpcB22F3/1266
dc.subject.cpcB22F3/1055
dc.subject.cpcB22F3/15
dc.subject.cpcB29C64/153
dc.subject.cpcB33Y10/00
dc.subject.cpcB33Y70/00
dc.subject.cpcY02P10/295
dc.subject.uspc419/31
dc.subject.uspc419/38
dc.subject.uspc419/55
dc.titleLaser-directed fabrication of full-density metal articles using hot isostatic processing
dc.typePatent

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