Abstract

In order to quickly obtain an appropriate (semi-)product shape that prevents edge fracture in stretch flanging, the non-uniform stretch flanging theory proposed by Nagai was applied to the prediction of strain distribution observed in sheet metal forming of a product with a flat top and a concave wall. The strains calculated by the finite difference method along the flange edge are comparable to those obtained by finite element analysis. Furthermore, flange height h, corner radius R, and shape angle θ were selected as significant factors on circumferential strain εc along the flange edge. The investigation on the effect of those factors shows that εc increases as R decreases, h increases, and as θ increases. A further increase in θ, however, reduces the increasing rate of εc.

Full Text
Paper version not known

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 call

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.