Thermal mechanical loadings in machining process would promote material microstructure changes. The material microstructure evolution, such as grain size evolution and phase transformation could significantly influence the material flow stress behavior, which will directly affect the machining forces. An analytical model is proposed to predict cutting forces during the turning of AISI 4130 steel. The material dynamic recrystallization is considered through Johnson-Mehl-Avrami-Kolmogorov (JMAK) model. The explicit calculation of average grain size is provided in an analytical model. The grain size effect on the material flow stress is considered by introducing the Hall-Petch relation into a modified Johnson-Cook model. The cutting forces prediction are based on Oxley’s contact mechanics with consideration of mechanical and thermal loads. The model is validated by comparing the predicted machining forces with experimental measurements.
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ASME 2017 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing
June 4–8, 2017
Los Angeles, California, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-5072-5
PROCEEDINGS PAPER
Turning Force Prediction of AISI 4130 Considering Dynamic Recrystallization
Zhipeng Pan,
Zhipeng Pan
Georgia Institute of Technology, Atlanta, GA
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Yixuan Feng,
Yixuan Feng
Georgia Institute of Technology, Atlanta, GA
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Steven Y. Liang
Steven Y. Liang
Georgia Institute of Technology, Atlanta, GA
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Zhipeng Pan
Georgia Institute of Technology, Atlanta, GA
Yixuan Feng
Georgia Institute of Technology, Atlanta, GA
Xia Ji
Donghua University, Shanghai, China
Steven Y. Liang
Georgia Institute of Technology, Atlanta, GA
Paper No:
MSEC2017-3049, V001T02A040; 7 pages
Published Online:
July 24, 2017
Citation
Pan, Z, Feng, Y, Ji, X, & Liang, SY. "Turning Force Prediction of AISI 4130 Considering Dynamic Recrystallization." Proceedings of the ASME 2017 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing. Volume 1: Processes. Los Angeles, California, USA. June 4–8, 2017. V001T02A040. ASME. https://doi.org/10.1115/MSEC2017-3049
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