A short review on SLM-processed Ti6Al4V composites

Abstract

The advancements in computer-aided design, manufacturing, and additive manufacturing techniques attracted the researcher to apply various new methods with the unique combination of alloys and composites to design and develop complex parts. Among them the selective laser melting (SLM) process, a branch of additive manufacturing, and Ti6Al4V (Ti64) composite. Due to the better mechanical and corrosion resistance characteristics of Ti64 and its composites, they have been utilized for making various engineering parts related to jet engine fans of aero-engine, engine valves of automobiles, knee and hip joint endoprosthesis in the biomedical field, and corrosion resistance pipes in chemical industries. Also, more complex, net-shaped, and lattice-structured components can be fabricated by advancing the SLM process. The final quality of the parts manufactured from the SLM technique will depend on the fabrication process parameters followed. Many researchers have done research work on metal additive manufacturing by changing and optimizing the SLM process parameters such as laser power ( P), scanning speed ( v), hatch spacing ( d), and layer thickness ( h). Also, they have studied the effect of changes on the feedstock preparation, SLM process parameters, milling time of composite and post-heat treatment on the quality of Ti6Al4V composites. Therefore, a detailed review is needed to study the effect of the abovementioned parameters on the quality of metal additively manufactured parts through SLM. Hence, a short review is done on future challenges and opportunities of SLM-processed Ti6Al4V composites and reported in this article.

Effect of Rotational Shear and Heat Input on the Microstructure and Mechanical Properties of Large-Diameter 6061 Aluminium Alloy Additive Friction Stir Deposition

“…The leading metal AM technology currently uses the fusion cladding method and solid-phase additive manufacturing technology [5]. The fusion additive methods include selective laser melting (SLM) [6][7][8], direct metal laser sintering (DMLS) [9,10], and electron beam selective zone melting (SEBM) [11,12]. The basic working principle of these AM methods is to melt solid powder materials through a computer-controlled laser heat source, stack the melted materials layer by layer and cover the previous additive layer, finally completing the AM of the structural parts.…”

Benefits of Aeronautical Preform Manufacturing through Arc-Directed Energy Deposition Manufacturing

“…While excelling in the rapid production of large components, it might be less suitable for intricate geometries. In contrast, Powder Bed Fusion (PBF) methods [30], like Selective Laser Melting (SLM) [31] or Electron Beam Melting (EBM) [32], provide higher material efficiency, superior accuracy, and resolution, making them well suited for intricate designs. However, these processes may incur higher costs and slower manufacturing speeds.…”