Investigation and Optimization of Disk-Laser Welding of 1 mm Thick Ti-6Al-4V Titanium Alloy Sheets

Investigation and Optimization of Disk-Laser Welding of 1 mm Thick Ti-6Al-4V Titanium Alloy Sheets

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Ti-6Al-4V joints are employed in nuclear engineering, civil industry, military, and space vehicles.Laser beam welding has been proven to be promising, thanks to increased penetration depth and reduction Validation of journal impact metrics of Web of Science and Scopus of possible defects of the welding bead; moreover, a smaller grain size in the fusion zone is better in comparison to either TIG or plasma arc welding, thus providing an increase in tensile strength of any welded structures.In this frame, the regression models for a number of crucial responses are discussed in this paper.The study Efeitos de diferentes frações inspiradas de oxigênio no índice biespectral em cães submetidos à infusão contínua de propofol Effects of several inspired oxygen fractions on the bispectral index in dogs submitted to continuous infusion of propofol has been conducted on 1 mm thick Ti-6Al-4V plates in square butt welding configuration; a disk-laser source has been used.

A three-level Box-Behnken experimental design is considered.An optimum condition is then suggested via numerical optimization with the response surface method using desirability functions with proper weights and importance of constraints.Eventually, Vickers microhardness testing has been conducted to discuss structural changes in fusion and heat affected zone due to welding thermal cycles.