Additively manufactured parts produced via laser powder bed fusion (LPBF) have limitations in their applications due to post-processing requirements caused by high surface roughness. The characteristics of side-skin surfaces are generally assumed to be dominated by adhered powder particles. This work aims to analyze and interpret the effects of LPBF processing parameters on side-skin surfaces. As such, this work has two sections to investigate the effect of (i) core and (ii) border LPBF parameters on side-skin surface roughness for Ti–6Al–4V. The findings show that there is a robust correlation between both core and border LPBF parameters on side-skin surface morphologies. In terms of core LPBF parameters, an interaction between laser power and beam velocity is shown to influence side-skin surface roughness, resulting in Sa values in the range of 11–26 μm. Additionally, a preliminary investigation into the effect of melting mode phenomena at the border leads to a possibility of obtaining Sa values of <10 μm, with reduced effects of adhered and partially fused powder.

由于高表面粗糙度引起的后加工要求，通过激光粉末床熔合（LPBF）生产的增材制造零件在其应用中存在局限性。一般认为，侧皮表面的特性主要由粘附的粉末颗粒决定。这项工作旨在分析和解释LPBF加工参数对侧面皮肤表面的影响。因此，这项工作分两部分来研究（i）核心和（ii）边界LPBF参数对Ti-6Al-4V的侧面皮肤表面粗糙度的影响。研究结果表明，侧皮表面形态上的核心和边界LPBF参数之间存在强相关性。根据核心LPBF参数，显示激光功率和光束速度之间的相互作用会影响侧面皮肤的粗糙度，从而导致Sa的值在11–26μm的范围内。另外，对边界处熔融模式现象的影响的初步研究导致获得S a值<10μm的可能性，同时减少了粘附和部分熔融粉末的影响。