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Impact of mechanical anisotropy on flat-rolled wires geometry

Abstract : A precise final geometry of flat-rolled wires is required in view of their industrial applications. However, comparison between experimental and computed cross-sections shows a gap of 10%. This difference might originate in the anisotropy introduced by wire drawing. Coefficients of an anisotropic constitutive model (Hill 48) have been identified from transverse compression tests. Then Lam3®, a finite element software, has been used to simulate rolling passes. The anisotropic law previously established significantly improves the estimation of the final width: yet the underestimation of the experimental width is 5% instead of 10%. Possible ways for further improvement are discussed.
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Thomas Massé, Yvan Chastel, Lionel Fourment, Pierre Montmitonnet, Christian Bobadilla, et al.. Impact of mechanical anisotropy on flat-rolled wires geometry. 12th ESAFORM Conference on Material Forming, Apr 2009, Enschede, Netherlands. pp.Pages 363-366, ⟨10.1007/s12289-009-0444-6⟩. ⟨hal-00509436⟩

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