Multi Regression Analysis of Flow Curve Obtained by Torsion Test

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This paper presents determination of flow curve of steel by using multi regression analysis based on only few experimental points of torsion test. It is necessary to know the flow curve of the formed metal and the best way to obtain one are different experiments such as tensile, upsetting or torsion tests. In the paper torsion test was used for obtaining the flow curve. In torsion test a cylindrical specimen is twisted by torque acting around its axis. Experimental data of torsion test were processed by determination of statistical characteristic of experimental results.

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159-163

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December 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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