Abstract
Ti4Al4V is an important aerospace alloy because of its excellent properties that include high
strength to weight ratio and corrosion resistance. In spite of these impressive properties processing
titanium is very challenging which contributes to the high cost of the material. laser metal
deposition, an important additive manufacturing method is an excellent alternative manufacturing
process for Ti6Al4V. The economy of this manufacturing process also depends on the right
combination of processing parameters. The principal aim of this study is to know the optimum
processing parameters that will result in deposit with sound metallurgical bonding with the
substrate with proper mechanical property and better surface finish. This will help to reduce the
need for expensive secondary finishing operations using this manufacturing process. This study
investigates the influence of scanning speed and the powder flow rate on the resulting properties
of the deposited samples. Microstructure, Microhardness and surface finish of Ti6Al4V samples
that were produced using the laser metal deposition process over a range of scanning speeds,
ranging from 0.02 to 0.12 m/s and powder flow rate of ranging from 0.72 to 6.48 g/min...