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Influence of Basic Process Parameters on Mechnical and Internal Properties of 316L Steel in SLM Process for Renishaw AM400

Einfluss von Basisprozessparameter auf mechanische und interne Eigenschaften vom Stahl 316L im SLM-Prozess für Renishaw AM400
: Hajnys, Jiri; Pagac, Marek; Petru, Jana; Kotera, Ondrej; Scholz, Sebastian


MM Science journal (2019), March 2019, S.2790-2794
ISSN: 1803-1269 (Print)
ISSN: 1805-0476 (Online)
Fraunhofer IWU ()
process parameter; mechanical property; SLM; additive manufacturing; porosity

The paper deals with the study and experimental evaluation of the influence of process parameters determining the resulting mechanical properties of the components after additive production using the 1.4404 (316L) stainless steel SLM method. The determining process parameters that have been investigated are laser power, scanning speed and layer creation strategy. These parameters fundamentally affect the microstructure and macrostructure of components created by the SLM method, therefore, they have been subjected to closer examination. The results then determined the ideal set of parameters according to the assessment criteria - tensile test, porosity and roughness of the surface. Experiments were performed on the Renishaw AM400 and therefore the results and recommendations are directly related to this particular machine.