Cyclic heat treatment method for titanium or titanium alloy additive manufacturing part

The invention relates to a cyclic heat treatment method for a titanium or titanium alloy additive manufacturing part, which comprises the following steps: 1) heating an additive manufacturing molded part to a temperature higher than beta transformation temperature for heat preservation heat treatmen...

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Bibliographische Detailangaben
Hauptverfasser:	TENG AIJUN, DONG ENTAO, ZHANG ZHAO, YUAN ZIKAI, GAO QIANG, WANG PENG, MA ZHIWEI, KANG QIANG, HUANG ZHAOKUO, GUO JIE
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 CASTING CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The invention relates to a cyclic heat treatment method for a titanium or titanium alloy additive manufacturing part, which comprises the following steps: 1) heating an additive manufacturing molded part to a temperature higher than beta transformation temperature for heat preservation heat treatment: heating the additive manufacturing molded part to a temperature 10-50 DEG C higher than the beta transformation temperature, and preserving heat for 5-30 minutes; (2) taking out the formed part in the step (1), and transferring the formed part to a temperature below beta transformation temperature within 2 minutes to carry out heat preservation heat treatment; the temperature below the beta transformation temperature is 180-350 DEG C below the beta transformation temperature, and the heat preservation time is 8-30 minutes. By means of the circulating heat treatment mode, the heat treatment time is saved, microstructure improvement is rapidly and efficiently achieved, the performance of the titanium and titanium