High-precision rapid manufacturing method for submillimeter thin-walled structure

• Main Authors: CHENG ZONGHUI, BAI BING, CI SHIWEI, HU JIAQI, CAI XIAOYE, XIE SUIJIE, DONG DINGPING
• Format: Patent
• Language: Chinese; English
• Published: 29.03.2024
• Subjects: 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; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; WORKING METALLIC POWDER

The invention relates to the field of machining and manufacturing of thin-walled parts, in particular to a high-precision rapid manufacturing method for a submillimeter-level thin-walled structure, which comprises the following steps: S1, creating a thin-walled structural part model; s2, Ti6Al4V titanium alloy powder is prepared; s3, the thin-wall structural part is printed and formed; s4, performing post-treatment on the thin-wall structural part; according to the method, the submillimeter thin-wall structural part is prepared through the selective laser melting forming technology, the deformation and cracking phenomena in the forming process of the thin-wall structural part are restrained or eliminated to the maximum extent, and the problems that when a submillimeter titanium alloy thin-wall structural part is prepared through a traditional machining mode, forming is difficult, the machining precision is low, the manufacturing cost is high, and the production period is long are solved; and high-precision ra