Method for forming high-performance aluminum profile extrusion die through selective laser melting

• Main Authors: ZHENG JIANQUAN, ZHOU SHENGFENG, LUO WEIHAO, MA DESHENG, QIU YATING, NIE DEJIAN, LIN LIYING, HUANG HELUAN
• Format: Patent
• Language: Chinese; English
• Published: 31.10.2023
• 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; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; CASTING; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; NANOTECHNOLOGY; PERFORMING OPERATIONS; POWDER METALLURGY; PUNCHING METAL; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

A method for forming a high-performance aluminum profile extrusion die through selective laser melting is characterized by comprising the steps that (1) a CAD model of an aluminum profile extrusion die part to be prepared is sliced in a layered mode, and a series of selective laser melting forming two-dimensional scanning tracks are generated; and (2) according to the generated scanning track, the aluminum profile extrusion die of a three-dimensional entity is formed in a point-by-point, line-by-line and layer-by-layer stacking mode. The iron-based alloy powder for preparing the aluminum profile extrusion die comprises the following chemical components in percentage by weight: less than or equal to 0.3 percent of C; wt.% of Si, 0.5 to 1.5 wt.%; 2.0 to 3.2 wt.% of Ni; %, 0.5 to 0.8 wt.% of Mn; 4.5 to 6.5 wt.% of Cr; 0.5 to 1.5 wt.% of V; 2.0 to 3.5 wt.% of Mo; wt.% of Cu, 5.0 to 8.0 wt.% of Cu; 0.5 to 3.5 wt.% of Al; 5 to 15 wt.% of SiB4; 1.5 to 3 weight percent of graphene nanosheets; and the balance of Fe. W