Maraging steels are good candidates for the laser powder bed fusion process (L-PBF), also known as Selective Laser Melting, due to excellent weldability and resistance quench cracking. Powders physical chemical characteristics dominate final microstructure properties of printed parts, that heavily influenced by parameters. In this study, effects scanning strategies on dimensions, average surfac...

The great mechanical performance of 18Ni300 maraging steel, achieved during ageing treatment by the precipitation fine intermetallic precipitates within a martensitic matrix, makes this material good choice for demanding applications such as injection moulds automotive industry. Its ease manufacture selective laser melting (SLM) allows parts with higher degree complexity and possibility customi...

This article is focused on the laser macro polishing of additively manufactured (AM) parts. The material that being processed maraging steel (MS1). main part study to find suitable parameters significantly reduce surface roughness 3 surfaces with completely different topologies. investigated are scanning speed, defocussed and power. However, other properties also tested. Fatigue life, tensile h...