USE OF SEMI-CRYSTALLINE POLYMER WITH LOW TG AND POST-CRYSTALLIZATION FOR EASY 3D PRINTING

The invention provides a method for manufacturing a 3D item (10) with a fused deposition modeling 3D printer, the method comprising (a) providing a thermoplastic material (20), wherein the thermoplastic material (20) comprises a first polymer (21) of the semi-crystalline type, wherein the first poly...

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Bibliographische Detailangaben
Hauptverfasser:	HIKMET, Rifat, Ata, Mustafa, BERBEN, Edward, Theodorus, Maria, LUB, Johan
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 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 invention provides a method for manufacturing a 3D item (10) with a fused deposition modeling 3D printer, the method comprising (a) providing a thermoplastic material (20), wherein the thermoplastic material (20) comprises a first polymer (21) of the semi-crystalline type, wherein the first polymer (21) has a glass temperature (Tg) and wherein the thermoplastic material (20) has a melting temperature (Tm); generating in a generation stage an intermediate 3D printed item (110) by printing the thermoplastic material (20), wherein the thermoplastic material (20) is heated to a temperature equal to or above the melting temperature (Tm), while maintaining during printing an ambient temperature (Ta) to the intermediate 3D printed item under construction below the glass temperature (Tg); and generating in an annealing stage said 3D item (10) by heating the intermediate 3D printed item (110) equal to or above the glass temperature (Tg).