Hardness and Surface Roughness Study of Steel Part Produced by Additive Technology

Abstract

3D printing is currently growing very rapidly and it allows to produce structurally complex elements consisting of one or more parts. 3D printing technique delivers some problems which are necessary to solve. The article deals with the hardness and surface roughness investigation of a component produced by direct metal laser sintering technology. The goal of the research was to study the influence of a surface orientation on observed parameters mentioned above. The tested sample was designed as a complex part that includes many geometrical features, which can also influence properties of a product. The part was produced from maraging steel 1.2709. Executed preliminary tests have shown that the obtained values differ, what indicates that there are effects of manufacturing conditions on the product quality. Next experiments will be performed to specify the impact degree of individual factors.