At present time is increasingly applying 3D printing methods in the area of production of metallic materials also. 3D printing is use for serial and individual unit production in the aerospace, automotive and medical applications (prosthetics, implants, etc.). 3D printing methods are chosen especially for the production of dimensionally complicated products, where is difficult or impossible to achieve a result by classical methods of production. In the case of steels, the austenitic stainless materials with high nickel and chromium contain shall be applied in this area. Due to fact, that by this way manufactured material has diametrically different microstructure, it is necessary to verify its properties.This article deals with, in particular, mechanical and microstructural properties of products (test specimens) from Steel AISI 316L produced by 3D printing (SLM method). Assessments of the strength parameters in the tensile test, the impact energy and hardness are studied. For the assessment of basic microstructure, porosity and fracture surfaces evaluation the light microscopy is used. Obtained results are compared with the properties of identical test specimens made by “conventional” ways. The results show promising and homogenous mechanical properties.Keywords: 3D print, SLM, steel AISI 316L, microstructure, mechanical properties
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