A systematic review of process uncertainty in Ti6Al4V-selective laser melting

The adoption of Ti6Al4V-Selective laser melting (SLM) for direct manufacturing remains challenging in terms of quality as the resulting microstructures, mechanical properties, and overall performance of fabricated parts depend heavily on factors influencing the process. Although Ti6Al4V-SLM shows potential, the technology remains unstable and partially explored. This systematic review explores quality issues and uncertainty factors in the Ti6Al4V-SLM process. Using the Ti6Al4V-SLM, Quality, and Uncertainty as keywords, a search was performed on scientific databases. The findings demonstrate that laser power, scanning speed, and powder bed temperature significantly affect product quality and create various levels of uncertainty in Ti6Al4V-SLM.