Additive manufacturing process comprising relieving stresses of the manufactured workpiece

An additive manufacturing process performed by an additive manufacturing machine includes strain gauges (26) that detect stress within a part (16) during fabrication within a defined workspace (12). When the detected stress is exceeds a desired level the fabrication steps are paused and a stress rel...

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Bibliographische Detailangaben
Hauptverfasser:	Haynes, Jeffrey D, Matejczyk, Daniel Edward, Gao, Youping, Keremes, John J
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CASTING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING METALLIC POWDER WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An additive manufacturing process performed by an additive manufacturing machine includes strain gauges (26) that detect stress within a part (16) during fabrication within a defined workspace (12). When the detected stress is exceeds a desired level the fabrication steps are paused and a stress relieving process is performed within the workspace (12) without moving the part (16). The additive manufacturing machine (10) includes heaters (30) and coolers (34) for changing the temperature within the workspace (12) to perform the desired stress relieving process in the same space as fabrication is performed. Once it is confirmed that stresses within the part (16) are within acceptable limits the part fabrication process is resumed.