Open AccessInfluence of the Curvature of the Multipoint Die for Flexible Multipoint Stretch Bending on the Quality of Aluminum Profile
Author(s) -
Yang Li,
Rui Li,
Ce Liang,
Jicai Liang,
Fei Teng
Publication year - 2020
Publication title -
mathematical problems in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 62
eISSN - 1026-7077
pISSN - 1024-123X
DOI - 10.1155/2020/5960973
Subject(s) - curvature , bending , bent molecular geometry , die (integrated circuit) , structural engineering , finite element method , stress (linguistics) , materials science , aluminium , cushion , composite material , engineering , geometry , mathematics , linguistics , philosophy , nanotechnology
The finite element numerical simulation method was used to study the stretch-bending process of asymmetric L-section aluminum alloy profiles. The geometrical parameters of the multipoint dies (MPDs) are studied to influence the shape accuracy and springback of the L-section profile after bending. The results show that the profile curvature of the MPD after the profile is bent has a great influence on the stress-strain distribution, springback value, and shape accuracy. In order to obtain uniform stress-strain of the profile and reduce the springback and shape error, the MPD is optimized by numerical simulation analysis, which has a certain reference value of providing a theoretical basis for the rational design of the flexible stretch-bending.