An Improved Johnson–Cook Constitutive Model and Its Experiment Validation on Cutting Force of ADC12 Aluminum Alloy During High-Speed Milling
Abstract
:1. Introduction
2. Experimental Procedure
2.1. Quasi-Static Experiments
2.2. Split Hopkinson Pressure Bar Experiment
3. Results and Discussion
3.1. Improved Johnson–Cook Constitutive Model
3.2. Analysis of Constitutive Model Accuracy
3.3. Model Validation
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Chemical Compositions (%) | ||||||||
---|---|---|---|---|---|---|---|---|
Si | Fe | Cu | Mg | Mn | Zn | Ni | Sn | Al |
9.6–12 | <1.3 | 1.5–3.5 | <0.3 | <0.5 | <1.0 | <0.5 | ≤0.3 | others |
Cutting Speed v (m/min) | Spindle Speed n (r/min) | Feed Rate fz (mm/z) | Milling Width ae (mm) | Cutting Depth ap (mm) |
---|---|---|---|---|
300 | 15,924 | 0.025 | 3 | 0.5 |
600 | 31,847 | |||
900 | 47,770 |
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Meng, X.; Lin, Y.; Mi, S. An Improved Johnson–Cook Constitutive Model and Its Experiment Validation on Cutting Force of ADC12 Aluminum Alloy During High-Speed Milling. Metals 2020, 10, 1038. https://doi.org/10.3390/met10081038
Meng X, Lin Y, Mi S. An Improved Johnson–Cook Constitutive Model and Its Experiment Validation on Cutting Force of ADC12 Aluminum Alloy During High-Speed Milling. Metals. 2020; 10(8):1038. https://doi.org/10.3390/met10081038
Chicago/Turabian StyleMeng, Xinxin, Youxi Lin, and Shaowei Mi. 2020. "An Improved Johnson–Cook Constitutive Model and Its Experiment Validation on Cutting Force of ADC12 Aluminum Alloy During High-Speed Milling" Metals 10, no. 8: 1038. https://doi.org/10.3390/met10081038