Rigid-plastic boundaries approach to the analysis of arbitrary profile dies in axisymmetric extrusion

Huang, Guoming; Wang, Jang-Ping; Lee, Hsien-Der; Chang, Cheng-Sung

doi:10.1016/j.jmatprotec.2008.10.037

Cited by 7 publications

(4 citation statements)

References 19 publications

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“…Their work attempted to pick the best type of die shape, based upon minimization of force and redundant strain. Huang et al [12] further refined this work to show that the cosine dies provide both the lowest force and effective strain.…”

Section: Previous Studies On Distortion Of Axisymmetric Extrusionsmentioning

confidence: 94%

Minimizing distortion during extrusion using adaptable dies

Gordon¹,

Tyne²,

Moon³

2012

International Journal of Mechanical Sciences

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Section: Previous Studies On Distortion Of Axisymmetric Extrusionsmentioning

confidence: 94%

Minimizing distortion during extrusion using adaptable dies

Gordon¹,

Tyne²,

Moon³

2012

International Journal of Mechanical Sciences

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“…This can make the manufacturing process more economical. For this reason, several researchers investigated the influences of the die profile on the required forming load and energy as well as on the material flow during the process [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Some researchers employed the upper-bound method for optimization of the die profile for axisymmetric forward extrusion operation [3][4][5]. Various functions such as cosine [3], Legendre polynomial [4], as well as elliptic and hyperbolic [5] functions were used to find the optimal die geometries.…”

Section: Introductionmentioning

confidence: 99%

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Experimental, Analytical, and Numerical Studies on the Forward Extrusion Process

Fereshteh-Saniee

Fakhar

Karimi

2013

Materials and Manufacturing Processes

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This article in concerned with studying the effect of die profile on the load and energy necessary for plane-strain forward extrusion. With this regard, the geometries of the second-order polynomial and exponential die profiles were optimized in order to minimize the required extrusion pressure calculated based on the slab method. These optimal extrusion dies and the relevant linear one were manufactured for three extrusion ratios. After performing the extrusion experiments, the corresponding finite-element simulations were carried out under the same test conditions. All the analytical, experimental, and numerical findings, which were in good agreement with each other, showed that for all the extrusion ratios, the optimized polynomial and exponential die profiles involved the minimum and maximum force and energy requirements for the process, respectively. Moreover, the influence of the die geometry was more apparent at lower extrusion ratios. When the experimental results were analyzed based on the Taguchi method, it was also found that the effect of the die profile on the maximum extrusion load was more than one third that of the extrusion ratio.

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