Prediction of temperature in the tool, chip, and workpiece surface is important to study tool wear, residual stresses in the machined part, and to design cutting tool substrates and coating. This paper presents a finite difference method-based prediction of temperature distribution in the tool, chip, and workpiece surface for transient conditions. The model allows inclusion of anisotropic materials such as coating or different material properties. The energy is created in the primary shear zone where the metal is sheared, the secondary deformation zone where the chip moves on the tool rake face with friction, and the tertiary zone where the flank face of the tool rubs against the finished part surface. The model allows both sticking and sliding friction contact of the moving chip on the rake face of the tool. The distribution of temperature is evaluated by meshing chip, workpiece surface zone, and tool into small discrete elements. The heat transfer among the elements is modeled, and the temperature is predicted at the center of each element. The heat transfer to the tool, workpiece, and chip is iteratively evaluated. The predicted temperature values are compared against the experimental measurements collected with coated tools in turning.
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July 2019
Research-Article
A Two-Dimensional Transient Thermal Model for Coated Cutting Tools
Coskun Islam,
Coskun Islam
Department of Mechanical Engineering,
University of British Columbia,
6250 Applied Science Lane,
Vancouver, BC V6T 1Z4,
e-mail: coskunislam@alumni.ubc.ca
University of British Columbia,
6250 Applied Science Lane,
Vancouver, BC V6T 1Z4,
Canada
e-mail: coskunislam@alumni.ubc.ca
Search for other works by this author on:
Yusuf Altintas
Yusuf Altintas
1
Professor
Fellow ASME
Department of Mechanical Engineering,
University of British Columbia,
6250 Applied Science Lane,
Vancouver, BC V6T 1Z4,
e-mail: altintas@mech.ubc.ca
Fellow ASME
Department of Mechanical Engineering,
University of British Columbia,
6250 Applied Science Lane,
Vancouver, BC V6T 1Z4,
Canada
e-mail: altintas@mech.ubc.ca
1Corresponding author.
Search for other works by this author on:
Coskun Islam
Department of Mechanical Engineering,
University of British Columbia,
6250 Applied Science Lane,
Vancouver, BC V6T 1Z4,
e-mail: coskunislam@alumni.ubc.ca
University of British Columbia,
6250 Applied Science Lane,
Vancouver, BC V6T 1Z4,
Canada
e-mail: coskunislam@alumni.ubc.ca
Yusuf Altintas
Professor
Fellow ASME
Department of Mechanical Engineering,
University of British Columbia,
6250 Applied Science Lane,
Vancouver, BC V6T 1Z4,
e-mail: altintas@mech.ubc.ca
Fellow ASME
Department of Mechanical Engineering,
University of British Columbia,
6250 Applied Science Lane,
Vancouver, BC V6T 1Z4,
Canada
e-mail: altintas@mech.ubc.ca
1Corresponding author.
Manuscript received October 17, 2018; final manuscript received April 13, 2019; published online May 14, 2019. Assoc. Editor: Tugrul Ozel.
J. Manuf. Sci. Eng. Jul 2019, 141(7): 071003 (14 pages)
Published Online: May 14, 2019
Article history
Received:
October 17, 2018
Revision Received:
April 13, 2019
Accepted:
April 15, 2019
Citation
Islam, C., and Altintas, Y. (May 14, 2019). "A Two-Dimensional Transient Thermal Model for Coated Cutting Tools." ASME. J. Manuf. Sci. Eng. July 2019; 141(7): 071003. https://doi.org/10.1115/1.4043578
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