Mechanical properties of the laser powder deposition and laser powder bed fusion printed 316L

Abstract Metal 3D printing technologies have made it possible to produce different parts, but the mechanical properties of parts connected using not yet been sufficiently studied. In study, 316L stainless steel was laser powder deposited (DED) with cladding head on bed fusion (PBF-LB) printed and joint investigated experimentally. The microstructure examined from cross-sections by optical microscopy. were evaluated hardness measurements tensile strength tests. structure similar typical structure, at joint, due higher heat input DED process, an increase in grain size clearly visible. Based measurements, profile very even, average approximately 305 HV. PBF-LB 549 MPa which is 11% lower than 316L.