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Milling-layer thickness model based on a trochoid trajectory |
| GUAN Liwen1, Zhao Xiao2, WANG Liping1 |
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 The milling-layer thickness model greatly affects the prediction accuracy of instantaneous milling forces. Current milling layer thickness models can accurately predict the instantaneous change in the milling layer thickness foe small feed rates per tooth, but are less accurate with large feed rates per tooth. The study analyzes the milling blade movement pattern as the tool rotates and the work-piece feeds in to the tool. The model predicts the trochoid trajectory and the milling start and end angles. The milling-layer thickness model is then based on the trochoid trajectory. Trochoid trajectory model is more accurate for both large and small feed rates per tooth than the circle model and the equivalent uniform thickness model.
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| Keywords
milling-layer thickness model
trochoid
tool trajectory
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Issue Date: 15 November 2017
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url: http://dx.doi.org/10.1016/S0924-0136(01)00586-6
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2017,
Vol. 57
