DETECTION AND REPAIR DEVICE AND METHOD FOR POWDER ADDITIVE MANUFACTURING

A detection and repair device for powder additive manufacturing. The detection and repair device (100) comprises a powder bed unit (2), a repair unit (3) and a detection unit (4); the powder bed unit has a powder bed platform (21), a powder spreading mechanism (22) and a laser unit (23); the repair...

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Bibliographische Detailangaben
Hauptverfasser:	CHEN, HsinPao, YEN, Juihsiung, CHEN, Yihsien
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CASTING CLADDING OR PLATING BY SOLDERING OR WELDING COMBINED OPERATIONS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MACHINE TOOLS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MEASURING METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS PHYSICS POWDER METALLURGY SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SOLDERING OR UNSOLDERING TESTING TRANSPORTING UNIVERSAL MACHINE TOOLS WELDING WORKING BY LASER BEAM WORKING METALLIC POWDER WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A detection and repair device for powder additive manufacturing. The detection and repair device (100) comprises a powder bed unit (2), a repair unit (3) and a detection unit (4); the powder bed unit has a powder bed platform (21), a powder spreading mechanism (22) and a laser unit (23); the repair unit has a processing mechanism (32); the detection unit has a camera (41) and a controller (42), the controller determining, according to image data of the powder bed platform captured by the camera, whether to spread powder or remove a powder spread defect, or to drive the processing mechanism to repair the surface of a work piece (101). Further disclosed is a detection and repair method for powder additive manufacturing. The method, by detecting image data obtained after powder spreading and image data obtained after fusion, can efficiently determine various defects and improve the quality of work pieces.