Abstract
The criteria for outward curling of circular metal tubes have been investigated experimentally and theoretically. The results are summarized as follows: (1) The critical bending radius, ρc exists. When the bending radius at die inlet ρ is larger than the ρc, the tube end fits well on the die surface. On the other hand, when ρ ≤ ρc, the tube end separates from the die surface and curling occurs. (2) It is found that there is a geometrical similarity law of the ρc. The ρc increases with increasing die angle. Furthermore, it is also clarified that the ρc is independent of the tube materials and lubrication.
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 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.
