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Evaluating influence degree of equal-channel angular pressing parameters based on finite element analysis and response surface methodology

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Abstract

The current paper presents a collection of numerical, mathematical, and statistical techniques to predict strain behavior and required pressing force of 7075 aluminum alloy within the different parameters of equal-channel angular pressing (ECAP). Accordingly, response surface methodology was utilized to estimate the contribution percentage of the processing parameters (i.e., die channel angle, outer corner angle, coefficient of friction, and punch rate) on effective plastic strain, standard deviation of effective strain, and required pressing force of the deformed sample; then, regression modeling relationships were presented for each of the three outputs. Also, a suitable coincidence was found between the predicted regression model, numerical approach, theoretical technique, and experimental work. It is found that the achieved results could be used as a successful guideline for evaluation of the ECAP process.

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Acknowledgements

The authors would like to thank the Iran National Science Foundation (INSF) for the financial support of this work under the Grant No. 94810544.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Faculty of Engineering, University of Maragheh, P.O. Box 55136-533, Maragheh, Iran

    M. Ebrahimi & F. Pashmforoush

  2. School of Denizli Vocational Technology, Program of Machine, Pamukkale University, Denizli, Turkey

    C. Gode

Authors
  1. M. Ebrahimi
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  3. C. Gode
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Correspondence to M. Ebrahimi.

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Technical Editor: Lincoln Cardoso Brandão.

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Ebrahimi, M., Pashmforoush, F. & Gode, C. Evaluating influence degree of equal-channel angular pressing parameters based on finite element analysis and response surface methodology. J Braz. Soc. Mech. Sci. Eng. 41, 95 (2019). https://doi.org/10.1007/s40430-019-1597-y

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