Technological features manufacture samples of stainless steel 316L by Selective Laser Melting on the machine Melt Master3D-550

5th International Scientific Workshop on "Advanced Technologies of Materials Field-Assisted Consolidation"

Yudin, A.V.^1 ; Beregovsky, V.V.^1 ; Tret'Yakov, E.V.^1 ; Jhirnova, J.E.^1 ; Burmistrov, M.A.^1

Laboratory Additive Technologies, RPA CNIITMASH, Moscow

115088, Russia^1

关键词: Austenitic stainless;    High density powder;    Laser radiation energy;    Morphometric properties;    Selective laser melting;    Stainless steel 316L;    Technological feature;    Technological parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/218/1/012022/pdf
DOI  :  10.1088/1757-899X/218/1/012022

来源: IOP

【 摘 要 】

In this work we consider obtaining high-density powder samples from austenitic stainless steel 316L, on the first national experimental layered build-up equipment by the method of selective laser melting (SLM) Melt Master3D - 550. The equipment description is given. Morphometric properties of the original powdered material is studied. Continuous unit vectors (tracks) and high-density samples with the relative density of 97% are obtained during the experiments. The laser radiation energy contribution is estimated to compare the conditions for obtaining samples with different technological parameters. In course of the study of the sample properties the dependence of density on the specific energy is revealed. Moreover, the influence of technological parameters on the microstructure and microhardness of the samples is established. The obtained data are compared with the results of other studies on similar foreign facilities.