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Erschienen in: Structural and Multidisciplinary Optimization 6/2011

01.12.2011 | Industrial Application

Shape optimisation of preform design for precision close-die forging

verfasst von: Bin Lu, Hengan Ou, Z. S. Cui

Erschienen in: Structural and Multidisciplinary Optimization | Ausgabe 6/2011

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Abstract

Preform design is an essential stage in forging especially for parts with complex shapes. In this paper, based on the evolutionary structural optimisation (ESO) concept, a topological optimisation method is developed for preform design. In this method, a new criterion for element elimination and addition on the workpiece boundary surfaces is proposed to optimise material distribution. To improve the quality of the boundary after element elimination, a boundary smoothing technique is developed using B-spline curve approximation. The developed methods are programmed using C# code and integrated with DEFORM 2D software package. Two 2D case problems including forging of an aerofoil shape and forging of rail wheel are evaluated using the developed method. The results suggest that the developed topology optimisation method is an efficient approach for preform design optimisation.

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Metadaten
Titel
Shape optimisation of preform design for precision close-die forging
verfasst von
Bin Lu
Hengan Ou
Z. S. Cui
Publikationsdatum
01.12.2011
Verlag
Springer-Verlag
Erschienen in
Structural and Multidisciplinary Optimization / Ausgabe 6/2011
Print ISSN: 1615-147X
Elektronische ISSN: 1615-1488
DOI
https://doi.org/10.1007/s00158-011-0668-1

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