ADDITIVE MANUFACTURING METHOD FOR MAKING A THREE-DIMENSIONAL OBJECT USING SELECTIVE LASER SINTERING

The present disclosure relates to an additive manufacturing (AM) method for making a three-dimensional (3D) object, comprising a) the provision of providing a powdered polymer material (M) comprising at least one polymer (P1) having a melting temperature (Tm) greater than 270° C., as measured by dif...

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Bibliographische Detailangaben
Hauptverfasser:	WARD, Christopher, JEOL, Stéphane, LEO, Vito
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The present disclosure relates to an additive manufacturing (AM) method for making a three-dimensional (3D) object, comprising a) the provision of providing a powdered polymer material (M) comprising at least one polymer (P1) having a melting temperature (Tm) greater than 270° C., as measured by differential scanning calorimetry (DSC) according to ASTM D3418, and at least one polymer (P2) having a glass transition temperature (Tg) between 130° C. and 240° C., and no melting peak, as measured by differential scanning calorimetry (DSC) according to ASTM D3418, b) the deposition of successive layers of the powdered polymer material; and c) the selective sintering of each layer prior to the deposition of the subsequent layer, wherein the powdered polymer material (M) is heated before step c) to a temperature Tp (° C.): Tp