Surface quality investigation of alsi10mg thin-walled parts built by selective laser melting

Nowadays, the building of thin-walled metal parts is one of the significant study topics for Additive manufacturing (AM) and selective laser melting (SLM) is broadly applied AM technique for fabrication of thin-walled and lattice structures. Thin-walled parts are largely used in several products of aerospace, aviation, etc. In this study, we have fabricated thin-walled test specimens of AlSi10Mg alloy at various wall thickness from 0.50 mm to 5.0 mm (at 12 different combinations of wall thickness) by using processing parameters of 320 W of laser power, 900 mm/s of scanning speed and 80 µm of hatch distance. The aim of the paper is to investigate the influence of different wall thicknesses on the surface quality of SLM built test specimens.