Abstract
Laser welding of TC4 titanium (Ti) and 7075 aluminum (Al) alloys were accomplished in an overlap Ti-on-Al configuration with infinite-shape oscillating beam, microstructure and mechancial properties of joints were analyzed, energy-saving rate, interfacial heat transfer and energy-saving production were also investigated. The results suggested that the performance of TC4/7075 dissimilar joint can be maintained from 1663 N to 1672 N without obvious fluctuations by the use of oscillating laser beam with the corresponding increasing 50 Hz frequency for every 100 W decrease in laser power, which is derived from the promotion of heat transfer in penetration depth direction, thus keeping the melting amount of base metal to maintain an effective connection. In addition, the energy-saving rate rises as laser power decreases and oscillating frequency increases. Under 900 W laser power and 150 Hz oscillating frequency, the energy-saving rate reaches the highest value of 21.62% compared to the initial conventional laser welding process at 1200 W laser power. The conclusions can provide a basis for energy-saving rate evaluation of the green manufacturing in Ti/Al novel process.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
