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公开(公告)号：DE69913950D1
公开(公告)日：2004-02-05
申请号：DE69913950
申请日：1999-03-26
Applicant: 3D SYSTEMS INC
Inventor： HULL W , LOCKARD S , ALMQUIST A
Abstract: Tool having a molding surface is formed from a flowable material (e.g., powder material) wherein the shape of molding surface is formed from a molding process using a master pattern having a surface with a shape substantially the same as the shape of the molding surface to be formed. The tool has at least one thermal control element located within it and spaced from the molding surface where a component used in forming the thermal control element is located within the flowable material prior to solidifying the material. The powder material is preferably a mixture of metals. The thermal control elements include fluid flow paths, heating elements, temperature sensors, and the like.
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公开(公告)号：DE69623489D1
公开(公告)日：2002-10-10
申请号：DE69623489
申请日：1996-09-27
Applicant: 3D SYSTEMS INC
Inventor： LEYDEN N , THAYER S , BEDAL J , ALMQUIST A , HULL W , EARL M , KEREKES A , SMALLEY R , MEROT M , FEDCHENKO P , LOCKARD S , PANG H , THAT TON
Abstract: A three-dimensional object is formed by selectively depositing successive layers (14) of build material from a print-head (9) having a plurality of orifices or nozzles (10(1)-10(96)), such as an ink-jet type of print-head. The print-head (9) is moved (X-Y control) relative to a support platform (15) in a series of scans in the X-direction offset from one another in the Y-direction and possibly overlapping. The orifices (10(1)-10(96)) extend transversely of the scan X-direction and may be set at an angle (α) to it to control the resolution perpendicular to the scan direction. The platform (15) is movable relative to the print-head in the Z-direction for forming each successive layer (14). The build material is a flowable material and may be a radiation-curable material, such as an ultra-violet curable photo-polymer. The data according to which each layer is formed may be manipulated according to a selected build style to determine the selective activation of the print-head orifices.
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公开(公告)号：DE69910384T2
公开(公告)日：2004-06-24
申请号：DE69910384
申请日：1999-06-11
Applicant: 3D SYSTEMS INC
Inventor： LOCKARD F , SCHMIDT KRIS , HULL W
Abstract: A method for making a molded refractory article including the steps of providing a mold including a master pattern, the mold and master pattern defining a mold cavity; filling the mold cavity with a mixture comprising refractory particles and a heat fugitive binder; placing the assembly of the mold, master pattern and mixture in a furnace; curing the mixture; separating the mold and master pattern from the cured mixture; removing the binder to form a porous structure, sintering the porous structure to provide a porous refractory article and infiltrating the porous refractory article with a filler metal.
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公开(公告)号：DE69910384D1
公开(公告)日：2003-09-18
申请号：DE69910384
申请日：1999-06-11
Applicant: 3D SYSTEMS INC
Inventor： LOCKARD F , SCHMIDT KRIS , HULL W
Abstract: A method for making a molded refractory article including the steps of providing a mold including a master pattern, the mold and master pattern defining a mold cavity; filling the mold cavity with a mixture comprising refractory particles and a heat fugitive binder; placing the assembly of the mold, master pattern and mixture in a furnace; curing the mixture; separating the mold and master pattern from the cured mixture; removing the binder to form a porous structure, sintering the porous structure to provide a porous refractory article and infiltrating the porous refractory article with a filler metal.
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公开(公告)号：DE69913950T2
公开(公告)日：2004-10-21
申请号：DE69913950
申请日：1999-03-26
Applicant: 3D SYSTEMS INC
Inventor： HULL W , LOCKARD S , ALMQUIST A
Abstract: Tool having a molding surface is formed from a flowable material (e.g., powder material) wherein the shape of molding surface is formed from a molding process using a master pattern having a surface with a shape substantially the same as the shape of the molding surface to be formed. The tool has at least one thermal control element located within it and spaced from the molding surface where a component used in forming the thermal control element is located within the flowable material prior to solidifying the material. The powder material is preferably a mixture of metals. The thermal control elements include fluid flow paths, heating elements, temperature sensors, and the like.
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Patent Agency Ranking
公开(公告)号：DE69621001D1
公开(公告)日：2002-06-06
申请号：DE69621001
申请日：1996-01-29
Applicant: 3D SYSTEMS INC
Abstract: Methods and apparatus for use in building three-dimensional objects on substantially a cross-sectional basis including methods and apparatus for forming successive layers using counter-rotating rollers, ink jet recoaters, spinning members which sling material, applicator bars that dispense material via a meniscus and/or independently dispensed streams, and also including methods and apparatus to determine a preferred region over which to form a layer and to check for building errors.
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公开(公告)号：DE69623489T2
公开(公告)日：2003-11-20
申请号：DE69623489
申请日：1996-09-27
Applicant: 3D SYSTEMS INC
Inventor： LEYDEN N , THAYER S , BEDAL J , ALMQUIST A , HULL W , EARL M , KEREKES A , SMALLEY R , MEROT M , FEDCHENKO P , LOCKARD S , PANG H , THAT TON
Abstract: A three-dimensional object is formed by selectively depositing successive layers (14) of build material from a print-head (9) having a plurality of orifices or nozzles (10(1)-10(96)), such as an ink-jet type of print-head. The print-head (9) is moved (X-Y control) relative to a support platform (15) in a series of scans in the X-direction offset from one another in the Y-direction and possibly overlapping. The orifices (10(1)-10(96)) extend transversely of the scan X-direction and may be set at an angle (α) to it to control the resolution perpendicular to the scan direction. The platform (15) is movable relative to the print-head in the Z-direction for forming each successive layer (14). The build material is a flowable material and may be a radiation-curable material, such as an ultra-violet curable photo-polymer. The data according to which each layer is formed may be manipulated according to a selected build style to determine the selective activation of the print-head orifices.
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公开(公告)号：DE69621001T2
公开(公告)日：2003-04-03
申请号：DE69621001
申请日：1996-01-29
Applicant: 3D SYSTEMS INC
Abstract: Methods and apparatus for use in building three-dimensional objects on substantially a cross-sectional basis including methods and apparatus for forming successive layers using counter-rotating rollers, ink jet recoaters, spinning members which sling material, applicator bars that dispense material via a meniscus and/or independently dispensed streams, and also including methods and apparatus to determine a preferred region over which to form a layer and to check for building errors.
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