The production of metal components by Additive Manufacturing (AM) processes has been experiencing exponential growth in recent years. However, only a limited number of alloys can be processed through metal AM. To address this limitation, this thesis investigates optimization of process parameters in Laser Powder Bed Fusion (LPBF) – AM for an AlSi10Mg alloy with 20% wt. (Cu) aiming to significantly reduce defects such as porosity and cracks. LPBF parameters including laser power, scanning speed, and layer thickness were taken into account to assess their impact on the structural integrity of the fabricated samples. The research began with the fabrication of 15 cubic 10mm3 samples using gas atomised AlCu20Si10Mg powder.