Abstract
The friction welding for copper and aluminium is useful to minimize the diffusion thickness at the interface between copper and aluminium. The minimization of diffusion thickness is required for maintaining the joint strength, because brittle intermetallic compounds are formed at the friction weld interface between copper and aluminium. However, the improvement techniques on joint strength characteristics have not fully been clarified. In this study, stress singularities at the intersection of free surfaces and the interface between copper and aluminium are investigated using finite element analysis. It was confirmed that the no free-edge stress singularities existed in case of convex angle. In this experiment, copper and aluminium friction welded joints with convex apex angle were fabricated as to minimize the diffusion thickness, such ad > 1 μm at the interface between copper and aluminium. It was confirmed that the good tensile strength could be observed in any cases. The Charpy impact energy became comparatively low values in case of 90 degree of apex angle, and revealed a remarkable good impact energy can be obtained in case of the convex angle that showed no free-edge stress singularities.
Sign-in/Register to access full text options 
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 callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
Disclaimer: 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.
