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Park, Hyung Wook
Multiscale Hybrid Manufacturing Lab
Research Interests
  • Advanced manufacturing process and system
  • Flexible manufacturing
  • Multiscale materials

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Finite element analysis of adiabatic shear band formation during orthogonal metal cutting

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Title
Finite element analysis of adiabatic shear band formation during orthogonal metal cutting
Author
Rhim, Sung-HanPark, Hyung WookOh, Soo-Ik
Keywords
Adiabatic shear band;  Cutting;  Flow stress model;  Serrated chip;  Thermal softening
Issue Date
2007
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v.345-346, no., pp.885 - 888
Abstract
In serrated chips of difficult-to-machining materials such as medium carbon steel and titanium alloy during metal cutting process at high strain rates, the fine grain structure of the narrow shear bands which results from thermal softening due to severe deformation have been observed. However, the theories which have been developed to analyze continuous chip formation and most FEM analyses based on the conventional models such as Johnson-Cook and Zerilli-Armstrong flow stress model fail to explain the adiabatic shear band formation and the serrated chip formation. This paper discusses the characteristic of the new flow stress model in the previous investigation [1,2] and FEM simulation results to predict the serrated chip formation results are shown.
URI
https://scholarworks.unist.ac.kr/handle/201301/7260
ISSN
1751-6161
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