Improvement weldability of dissimilar joints (Ti6Al4V/Al6013) for aerospace industry by laser beam welding

The discovery of new metal alloys and the technological advancement in welding processes are key resources for aerospace industry to obtain cost reduction better reliability. Thus, welded joints dissimilar materials such as aluminum titanium have been explored due their combined low density high mechanical performance. Otherwise, metals may present deleterious factors joint formation intermetallic and/or brittle second phase residual stress. This project investigates weldability (Al6013/Ti6Al4V) by laser beam welding. approach will be done terms properties microstructural characterization. For this purpose, optimal offset from line related heat input has found. It was observed that controls amount compound layer fusion zone. Large pores were on Al side weld when is zero. microstructure consisted α-Al grains dispersed precipitates. Heat also influenced volumetric fraction Martensite α′ secondary acicular α found side. Furthermore, TiAl base TiAl, Ti3Al4, Ti2Al3 formed. Tensile strength 60% alloy. In addition, same higher input, there an increase hardness interface.