Åpne denne publikasjonen i ny fane eller vindu >>2017 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
Abstract [en]
Cold pilgering is a challenging tube forming process in terms of modeling due to the complexity in kinematic of tools, friction condition and material behavior. The process development has mostly been based on simple formulas and costly full-scale tryouts. The aim in this study is to develop validated Finite element models of cold pilgering to increase the understanding of influence of the process parameters on the produced tubes.
In the course of this thesis, three-dimensional mechanical and thermo-mechanical Finite element models of cold pilgering were developed. The commercial code MSC.Marc was used in the simulations. General 3D models are needed to be able to capture asymmetric deformation in cold pilgering. It was found that tool deflections together with elastic deformation of roll dies have considerable influence on the rolling force. Furthermore, the strain rate and temperature effects on the response of the material and thereby on the rolling force were evaluated.
sted, utgiver, år, opplag, sider
Luleå: Luleå University of Technology, 2017
Serie
Licentiate thesis, ISSN 1402-1757
Emneord
Cold pilgering, finite element method, tube forming, tool elasticity, roll flattening
HSV kategori
Forskningsprogram
Forskningsprofiler 2009-2020, Stålformning och ytteknik
Identifikatorer
urn:nbn:se:du-25902 (URN)978-91-7583-873-1 (ISBN)978-91-7583-872-4 (ISBN)
Presentation
2017-05-31, E130, Luleå tekniska universitet, Luleå, 10:25 (engelsk)
Opponent
Veileder
2017-08-292017-08-292021-11-12bibliografisk kontrollert