Non-Destructive Machinability Characterization of Materials Through a Correlation With Rate of Strain Sensitivity

[+] Author and Article Information
Jeffrey A. Sprague

Smith and Nephew, Inc., 1450 Brooks Road, Memphis, TN 38116e-mail: jeff.sprague@smith-nephew.com

Evangelos C. Eleftheriou, Charles E. Bates

Department of Materials and Mechanical Engineering, University of Alabama at Birmingham, 254-BEC, 1150 Tenth Avenue South, Birmingham, AL 35294-4461

J. Manuf. Sci. Eng 122(4), 691-697 (Sep 01, 1999) (7 pages) doi:10.1115/1.1285902 History: Received January 01, 1999; Revised September 01, 1999
Copyright © 2000 by ASME
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Experimental setup including tower, electromagnet, drop weights, dynamometer, mounting plates, and test sample
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Sample force signal obtained with dynamometer
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Schematic diagram of worn flank face
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Four repetitions of tool wear curve from drilling experiment on material G2 at 0.63 (m/s) cutting speed
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Taylor curve from drilling experiment on material G2
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Normalized stress versus rate of strain curve
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Average number of holes to squeal versus normalized contact viscosity
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Rate of loading versus rate of strain
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Illustration of machinability and contact viscosity curves for gray irons
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Illustration of machinability and contact viscosity curves for ductile irons




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