METHOD AND DEVICE FOR MANUFACTURING THREE-DIMENSIONAL OBJECT

PROBLEM TO BE SOLVED: To improve the quality of an object shaped with the method and device for manufacturing a three-dimensional object by a sintering means. SOLUTION: The three-dimensional object is made by the processes of sintering a material at two or more dots corresponding to the object secti...

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Bibliographische Detailangaben
1. Verfasser:	KELLER PETER DR
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CASTING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS POWDER METALLURGY SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM WORKING CEMENT, CLAY, OR STONE WORKING METALLIC POWDER WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve the quality of an object shaped with the method and device for manufacturing a three-dimensional object by a sintering means. SOLUTION: The three-dimensional object is made by the processes of sintering a material at two or more dots corresponding to the object section using a radiation energy, thereby solidifying a powder material in laminating. The process comprises a step of applying a powder material layer on a support plate or an already sintered layer, a step of preheating the powder material up to the processing temperature below the one for sintering the powder and a step of sintering the material at the two or more dots in corresponding to the object section in the layer. A step of determining the heat amount absorbed by the powder for each zone of at least two temperature zones is carried out while controlling and heating the applied powder layer. COPYRIGHT: (C)2004,JPO