Metal Cutting as a Property Test

[+] Author and Article Information
F. Lira

Catholic University of Chile, Santiago, Chile

E. G. Thomsen

University of California, Berkeley, Calif.; Catholic University of Chile, Santiago, Chile

J. Eng. Ind 89(3), 489-493 (Aug 01, 1967) (5 pages) doi:10.1115/1.3610093 History: Received May 11, 1966; Online August 25, 2011


It is suggested that a metal-cutting test can be utilized as a high-strain-rate property test at strains larger than those normally achievable in conventional tests. The strain and strain-rate analysis is performed on the chip root of a composite specimen whose interface records the necessary information in terms of deformed grid lines which become streamlines. In the stress analysis, it is necessary to assume that the shear stress calculated from transducer forces is constant throughout a thin shear zone observed at the higher cutting speeds. The results can be converted into effective-stress and effective-strain data and should permit the establishment of stress, strain rate, strain, and temperature relationships for materials at the larger strains and at the higher strain rates.

Copyright © 1967 by ASME
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