Multi-material variable-stiffness structural efficient collaborative additive manufacturing method

• Main Authors: LIU BIN, GUO BINGXIN, MAO HONGKUI, BAI PEIKANG, FAN ZONGYI, XU HONG, WANG YU, LI ZHONGHUA, ZHAO ZHANYONG, ZHANG GUOWEI, HOU FUMIN, CAO XIN
• Format: Patent
• Language: Chinese; English
• Published: 04.09.2020
• 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; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; POWDER METALLURGY; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM; WORKING METALLIC POWDER

The invention discloses a multi-material variable-stiffness structural efficient collaborative additive manufacturing method, and belongs to the technical field of composite additive manufacturing. The method comprises the steps that firstly, a part structure is divided into a lightweight part with a complex pore structure and a solid part required to be rapidly machined and manufactured, a selective laser melting technology is used for preparing the lightweight part, the lightweight part is subjected to surface treatment, and finally, the arc additive manufacturing technology is used on the lightweight part to prepare the solid part. According to the method, a part in the complex shape can be rapidly prepared, the part machining period can be shortened, the production cost is reduced, themethod fully exerts the advantages of the selective laser melting forming technology and the arc additive manufacturing technology, the additive manufacturing level of large parts and multi-materialparts can be improved, and