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FE analysis of springback and secondary yielding effect during forward extrusion

Peng, X. and Qin, Y. and Balendra, R. (2003) FE analysis of springback and secondary yielding effect during forward extrusion. Journal of Materials Processing Technology, 135 (2-3). pp. 211-218. ISSN 0924-0136

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Abstract

The response of the work-material during forward extrusion and the subsequent unloading process was analysed with a view to examining differences in prediction of component-form errors, when different constitutive models are used. Two types of constitutive models were adopted for the analysis-classical theory of plasticity (CP) with isotropic hardening and non-classical theory of plasticity (NCP). When compared the results of the CP model with the NCP model, the latter shows a slightly smaller maximum punch-force requirement, smaller diameter of the extrudate and larger contraction of the die during unloading. The significant difference in the predicted final dimensions of the extrudate with different constitutive models suggests that more accurate constitutive descriptions on the work-material have to be used for the analysis of component-form errors in precision forming, if more accurate results are to be achieved.

Item type: Article
ID code: 8635
Keywords: extrusion, fe simulation, secondary yielding, springback, constitutive model, design engineering, Engineering design, Metals and Alloys, Modelling and Simulation, Ceramics and Composites, Industrial and Manufacturing Engineering, Computer Science Applications
Subjects: Technology > Engineering (General). Civil engineering (General) > Engineering design
Department: Faculty of Engineering > Design, Manufacture and Engineering Management
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 19 Oct 2009 15:21
    Last modified: 04 Sep 2014 19:22
    URI: http://strathprints.strath.ac.uk/id/eprint/8635

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