Finite element simulation of innovative manufacturing processes for tube fittings

dc.contributor.authorZhang, Yu
dc.identifier.citationSource: Masters Abstracts International, Volume: 47-01, page: 0573.
dc.description.abstractTube fittings are widely used in the pressure vessel industry. Current research on tube fittings serves to determine means of decreasing the cost and increasing the efficiency of their manufacture. With this motivation, several new tube forming processes have been proposed in recent years. The current study focuses on the finite element simulation of two new manufacturing processes for tube fittings; i.e. hydroforming and tube push-bending. For tube hydroforming, used to produce T and Y joints, there is a working range defined by the combination of internal pressure and axial load. To ensure that a satisfactory product is obtained, it is essential that the loading path be inside the working range. The working range for several tube hydroforming models are predicted, and the results are validated with existing theoretical and experimental values. The new tube push bending process has the advantage that tube bends with a small bending radius can be produced. In this study, finite element simulations are carried out to demonstrate this advantage. The spring-back and material waste factors are determined through simulation, as well as the maximum axial load. The results obtained are validated against existing theoretical and experimental values. The study ends with some conclusions about the suitability of finite element simulations in tube forming processes, and with some suggestions for further research.
dc.format.extent114 p.
dc.publisherUniversity of Ottawa (Canada)
dc.subject.classificationEngineering, Mechanical.
dc.titleFinite element simulation of innovative manufacturing processes for tube fittings
CollectionTh├Ęses, 1910 - 2010 // Theses, 1910 - 2010

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