Three-dimensional printing heat accumulation control method and three-dimensional printing device

The invention discloses a three-dimensional printing heat accumulation control method. The method comprises the steps that the temperature value of a substrate for part printing is increased to the preheating temperature T0; controlling the laser printing assembly to perform additive manufacturing o...

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Bibliographische Detailangaben
Hauptverfasser:	LI PENG, WANG JINHAI, LIU JIANYE, GUAN ZIMIN, CHEN YUANDONG, WU YONGDONG, WEN JUNPENG, LIU AOSHUANG
Format:	Patent
Sprache:	chi ; eng
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 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:	The invention discloses a three-dimensional printing heat accumulation control method. The method comprises the steps that the temperature value of a substrate for part printing is increased to the preheating temperature T0; controlling the laser printing assembly to perform additive manufacturing on the substrate to continuously form a printing layer; the temperature of the printing layer is detected for the first time, and the difference value T1 between the current temperature of the printing layer and the preheating temperature is obtained; and the temperature of the printing layer is detected, the difference value Tt between the current temperature of the printing layer and the temperature of the printing layer when the output power of the laser printing assembly is reduced last time is obtained, when T1 or Tt is larger than or equal to T, the output power of the laser printing assembly is reduced, and otherwise, the current output power of the laser printing assembly is kept unchanged. According to the