Manufacturing method of magnetic shielding structure material based on SLM forming

• Main Authors: YANG JIAOXI, XIONG FALIN, ZHU QING, LI RAN, WANG ZEKANG, YANG FENG
• Format: Patent
• Language: Chinese; English
• Published: 26.08.2022
• 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 discloses a manufacturing method for forming a magnetic shielding structure material based on SLM, and belongs to the technical field of laser additive manufacturing. The structure comprises an assembly structure, a lightweight layer and a magnetic shielding layer. The used alloy powder comprises the following element components in percentage by weight: 1.8 to 9.48 percent of Mo, 0.05 to 2.9 percent of V, 0.12 to 7.71 percent of Nb, 0.7 to 2.48 percent of Al, 1.02 to 3.44 percent of Ti, 0.1 to 3.8 percent of Cu, 0.02 to 3.2 percent of Co, 0.02 to 4.4 percent of Cr, 0.01 to 8.45 percent of B, 0.08 to 8.12 percent of Si, 3.74 to 19.88 percent of Fe and the balance of Ni. The consumption of printing raw materials is reduced through a dot matrix filling mode, the weight of the magnetic shielding structure body is reduced, and the manufacturing efficiency is improved; the soft magnetic alloy with high magnetic conductivity is obtained by controlling process conditions, so that the shielding effective