Method for manufacturing superhard composite product by using extrusion type additive

• Main Authors: ZHANG WEI, LIU YONG, ZHU XIANZHI, LIU YUXI
• Format: Patent
• Language: Chinese; English
• Published: 05.03.2024
• 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; ALLOYS; CASTING; 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

The invention relates to a superhard composite material additive manufacturing technology, in particular to a method for manufacturing a superhard composite material through extrusion type additive manufacturing. The superhard composite material is prepared from the following raw materials: a binding phase, superhard raw material powder and an organic polymer, the binding phase, the superhard raw material powder and the organic polymer are prepared into feeding particles through a mixing and crushing method, the feeding particles are formed through an extrusion type additive manufacturing method and then degreased and sintered, and finally the superhard composite material is obtained through high-temperature and high-pressure full densification. The superhard composite material with excellent performance can be obtained by selecting a material ratio, a printing process and a printing strategy and combining a degreasing sintering method and a high-temperature and high-pressure method. The mold cost can be save