Change search
ReferencesLink to record
Permanent link

Direct link
Sheet Metal Forming Simulations with FEM
Umeå University, Faculty of Science and Technology, Department of Physics.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The design of new forming tools get more problemtic as the geometries get more complicated and the materials less formable. The idea with this project is to evaluate if an implementation of a simulation software in the designing process, to simulate the forming process before actually building the tools, could help Duroc Tooling avoid expensive mistakes. To evaluate this, the commercial FEM simulation software LS-DYNA was used in a complicated project, where the design of the forming tools for forming a girder was considered. The main objective was to avoid cracking and severe wrinkling which may result in the forming process. With help of simulations a stable forming process which did not yield cracks or severe wrinkling, was eventually found. The girder was almost impossible to form without cracking, but the breakthrough came when we tried to simulate a preforming step which solved the problem. Without a simulation software this would never have been tested since it would be to risky and expensive to try an idea which could turn out to be of no use. The simulations also showed that the springback - shape deformation occuring after pressing - was large and hard to predict without simulations. Therefore, the tools were also finally springback compensated. We concluded that simulations are very effective to quickly test new ideas which may be necessary when designing the tools for forming complicated parts. Simulation also provided detailed quantitative information about the expected cracks, wrinkles, and weaknesses of the resulting pieces. Even though there is cost associated with simulations, it is obvious from this project that a simulation software is a must if Duroc Tooling wants to be a leading company in sheet metal forming tools, and stand ready for the higher demands on the products in the future.

Place, publisher, year, edition, pages
2011. , 102 p.
Keyword [en]
Sheet Metal Forming Simulations, LS-DYNA
National Category
Physical Sciences
URN: urn:nbn:se:umu:diva-51527OAI: diva2:483734
Subject / course
Examensarbete i teknisk fysik
Educational program
Civilingenjörsprogrammet i teknisk fysik
2012-01-13, Universitetsklubben, Umeå, 18:44 (Swedish)
Physics, Chemistry, Mathematics
Available from: 2012-01-25 Created: 2012-01-25 Last updated: 2012-01-25Bibliographically approved

Open Access in DiVA

Sheet_Metal_Forming_Simulations_FilipLindberg.pdf(4160 kB)4546 downloads
File information
File name FULLTEXT01.pdfFile size 4160 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Lindberg, Filip
By organisation
Department of Physics
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 4550 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 3574 hits
ReferencesLink to record
Permanent link

Direct link