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RESEARCH PAPERS

Prediction of Brinell Hardness Distribution in Cold Formed Parts

[+] Author and Article Information
Ahmet Demir, Fazil O. Sonmez

Department of Mechanical Engineering, Bogazici University, Istanbul, Bebek, 34342, Turkey

J. Eng. Mater. Technol 126(4), 398-405 (Nov 09, 2004) (8 pages) doi:10.1115/1.1789960 History: Received July 31, 2003; Revised April 05, 2004; Online November 09, 2004
Copyright © 2004 by ASME
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References

Figures

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A schematic for the spherical indentation of the Brinell hardness test
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Schematic of the procedure for verifying the analytical model
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Data points indicate the measured hardness corresponding to the numerically calculated values of effective strain 1 for AISI 1010. The thicker line shows the empirical curve obtained by curve fitting of the data points. The thinner line shows the hardness predicted by the proposed equation (Eq. (12) together with Eq. (1)).
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The thicker line shows the empirical curve obtained by curve fitting of the data points (HV=−60.7εo2+119.1εo+115.1)2. The thinner line shows the hardness predicted by the proposed equation (Eq. (12) together with Eq. (1)).
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Data points indicate the measured hardness of a mild steel 11. The line shows the hardness predicted by the proposed equation (Eq. (12) and Eq. (1)).
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Sketch for the experimental setup
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Final geometry of the forward extruded part and strain distribution at its centerline
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Data points indicate the measured Brinell hardness (kgf/mm2). The line shows the hardness predicted by the proposed equation (Eq. (12) and Eq. (1)).

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