Scanning speed and powder flow rate influence on the properties of laser metal deposition of titanium alloy

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Peer-Reviewed Research
  • SDG 13
  • SDG 12
  • SDG 9
  • Abstract:

    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...