METHOD OF PRODUCING MOLD FOR PRESSING ROD MODELS BY SELECTIVE LASER FUSION OF METAL POWDER OF STAINLESS STEEL
	KOKAREVA V V; SMELOV V G; ALEKSEEV V P
	2023-12-22
专利权人	UNIV SAMARA NAT RES (UYSA-Non-standard)
申请日期	2023-12-22
专利号	RU2831287-C1
成果简介	NOVELTY - Invention relates to production of mold for pressing rod models by method of selective laser fusion (SLF) of metal powder of stainless steel “12X18H10T”, and can be used for production of foundry tooling. Manufacturing of parts by SLF technology takes place at the following process parameters: laser radiation power from 147 to 207 W, scanning speed from 450 to 1,000 mm/s, layer thickness from 50 to 60 mcm and scanning pitch from 0.08 to 0.14 mm. Process of parts manufacturing by SLF technology takes place inside a sealed chamber in the medium of protective gas—argon. High mechanical characteristics of workpieces are achieved due to rational properties of metal powder of stainless steel “12X18H10T” and SLF technological process mode parameters according to the required mechanical properties achievement criteria: laser fusion power—218 W, scanning speed—540 mm/s, scanning pitch—0.12 mm and layer thickness—0.06 mm. Ultimate strength (TS) is equal to 1,010 MPa. Low level of residual stresses is achieved due to prediction of deformation of the workpiece and distortions of mold workpieces based on the FEM of the digital model of the TP SLF process. Value of the inherited deformations for making the mold blank is as follows: εx=0.02, εy=0.008, εz=0.1. USE - Additive technologies. ADVANTAGE - Improving mechanical characteristics and achieving geometrical accuracy of mold workpieces for pressing rod models during selective laser fusion (SLF) of metal powder of stainless steel “12X18H10T”. 1 cl, 2 dwg, 1 tbl
IPC 分类号	B22F-010/28 ; B23K-026/70 ; B33Y-010/00
国家	俄罗斯
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/18781
专题	中国科学院新疆生态与地理研究所
作者单位	UNIV SAMARA NAT RES (UYSA-Non-standard)
推荐引用方式 GB/T 7714	KOKAREVA V V,SMELOV V G,ALEKSEEV V P. METHOD OF PRODUCING MOLD FOR PRESSING ROD MODELS BY SELECTIVE LASER FUSION OF METAL POWDER OF STAINLESS STEEL. RU2831287-C1[P]. 2023.

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