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TECHNICAL PAPERS

The Analysis and Control of Micro-Hardness Distribution During Wire Drawing

[+] Author and Article Information
Robert B. Gifford, John P. Coulter

Manufacturing Science Laboratory, Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, PA 18015

Alexander R. Bandar

Institute for Metal Forming, Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015

Wojciech Z. Misiolek

Institute for Metal Forming, Department of Materials Science and Engineering, Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, PA 18015

J. Manuf. Sci. Eng 126(2), 247-254 (Jul 08, 2004) (8 pages) doi:10.1115/1.1688380 History: Received April 01, 2002; Revised November 01, 2003; Online July 08, 2004
Copyright © 2004 by ASME
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References

Figures

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Ultimate tensile strength distributions for typical stock and drawn wire
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Preliminary testing tensile strength results for individual material heat numbers. (BD refers to before drawing, AD refers to after drawing)
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True stress-true strain curves covering the range of 302 stainless steel heats utilized during the present study
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Numerically predicted micro-hardness distributions resulting from 6°, 10° and 16° dies
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Numerically predicted Knoop micro-hardness vs. radial position for the four material and die angle combinations described in Table 5
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Schematic location of micro-hardness indentation tests
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Hardness distribution as a function of wire radius for the draw dies utilized with material heat 3; a) Dies 1, 2 and 3; b) Dies 4, 5 and 6
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Numerically predicted and experimentally determined radial micro-hardness distributions resulting from the drawing of material heat 3 through the six dies described in Table 6

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