MECHANICAL ENGINEERING |
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Modeling and analysis of intermittent cutting temperature field for the “S” test specimens |
GUAN Liwen1, YANG Liangliang2, WANG Liping1, CHEN Xueshang2, WANG Yaohui2, HUANG Ke2 |
1. Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China;
2. School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China |
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Abstract Cutting temperature distributions were analyzed to determine the thermal deformation of “S” testing specimens. The cutting temperature field model was based on the heat distribution ratio for the tool-workpiece contact area. The intermittent cutting temperature model was based on the actual cutting process by combining heat sources, the heat distribution, and temperature measurements. The cutting heat distribution was optimized and the coolant application was simplified to a simple forced convection heat transfer coefficient. These boundary conditions were used in a finite element simulation of the cutting heat in “S” test specimens with the results verified against temperature measurements using thermocouples on a Parpas-PM20 five-axis computer numerical control (CNC) machine tool.
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Keywords
“S&rdquo
test specimen
cutting temperature field
intermittent model
finite element method (FEM)
thermocouple
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Online First Date: 21 October 2015
Issue Date: 15 February 2016
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