What are the issues with welding ti6al4v?
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Welding Ti6Al4V titanium alloy can present several challenges. One issue is the potential increase or decrease in corrosion resistance when combined with gold, depending on the amount of gold in the alloy . Another issue is the formation of defects, such as porosity and lack of fusion, during laser additive manufacturing of large thickness Ti6Al4V titanium alloy joints . The structure and mechanical properties of electron-beam-welded joints between Ti6Al4V and Al6082-T6 alloys can be influenced by beam offset, leading to inhomogeneous welded joints with intermetallics and variations in microhardness . In pulse laser beam welding of Ti6Al4V plates, precise control of the assembling clearance is crucial to avoid severe defects caused by machining burrs and assembly errors . Fusion welding of NiTi to Ti6Al4V dissimilar joints is challenging due to the development of brittle intermetallic compounds, but the use of a zirconium interlayer and offsetting the laser beam to the Ti6Al4V side can reduce the formation of these compounds and improve joint mechanical performance .
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