Process parameter optimization of dmls process to produce AlSi10Mg components

Abstract

AlSi10Mg components were produced by Direct Metal Laser Sintering (DMLS) and its physical properties like density and mechanical properties ultimate tensile strength were measured.The experimental analysis showed that energy density and hatch spacing are the vital factors influencing the density of the components, the range of energy density for obtaining the best result was 42.40-63.25 J/mm3.The most important parameter effecting the Ultimate Tensile Strength (UTS) was Laser Power but Hatch Spacing also had an equal importance on the tensile strength but energy density analysis revealed that the highest energy density did not gave the least value of UTS as it was in the case of density.The optimum process parameter for both density and UTS was found to be a Laser Power of 330 W,Scan Speed of 1200 mm/s and Hatch Spacing of 0.15 mm.