Reclamation of titanium alloy based aerospace parts using laser based metal deposition methodology

Abstract

Ti6Al4V alloys are widely recognized for their excellent properties, which make them suitable for aerospace applications. The aero-engine components are subjected to high loading conditions, which sometimes degrade their properties. Thus, replacing the whole component is not an economical way. Therefore, repairing or refurbishment of a component is necessary. Directed metal deposition (DMD) is an additive manufacturing technique employed to repair the aero-engine components. Among other repair manufacturing techniques, this process has gained significant attention in the last few years due to its inherent capabilities. However, there are some issues associated with this technique, like defects, surface roughness, residual stresses, which influence the mechanical properties of a material. Many researchers have paid attention to optimize the directed energy deposition (DED) parameters to improve the properties of a material. In this study, the review of directed energy deposition used to repair Ti6Al4V aerospace components is done. The analysis of the obtained results by some researchers is done here. © 2021 Elsevier Ltd. All rights reserved.