Abstract
The stability of cutting processes in end milling can be increased by an optimization of the tool geometry. In this paper the influence of unequal helix angles is investigated. Unequal helix angles lead to varying tooth pitches. Thus, the cutting condition of each tooth is different. A mechanistic model is presented to determine incremental process forces along the tool axis. Based on the proposed model, stability charts for tools with unequal helix angles are computed and compared with experimental investigations from literature. The presented results show that tools with an optimized geometry can increase the stability significantly.
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Acknowledgments
This work has been supported by the Ministry for Science and Culture of Lower Saxony (MWK) within the excellence cluster ‘Pro3gression’.
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© 2014 Springer International Publishing Switzerland
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Grabowski, R., Denkena, B., Köhler, J. (2014). Process Force and Stability Prediction of End Mills with Unequal Helix Angles. In: Denkena, B. (eds) New Production Technologies in Aerospace Industry. Lecture Notes in Production Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-01964-2_13
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DOI: https://doi.org/10.1007/978-3-319-01964-2_13
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