Abstract
In the paper a method for selecting optimal spindle speeds for complex structures during milling operations is presented. It is based on the selection of the spindle speed in accordance with a simple equation resulting from the minimisation of vibration energy, which leads to the minimisation of the work of cut-ting forces presented in previous elaborations by the authors [1]. Optimal spindle speeds are obtained for many points selected on machined surface thanks to the results of the modal test. The effectiveness of the proposed method is verified based on the results of experimental research. Reduction of vibration level, improvement of surface quality and reduction of milling time were obtained.
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Acknowledgements
The research was carried out as a part of tasks financed by the Polish National Centre for Research and Development, project TANGO1/266350/NCBR/2015, on “Application of selected mechatronic solutions for supervising the machining of large-size work-pieces on multi-axis machining centres”.
Experimental investigations on the MIKROMAT 20V portal machining centre were made thanks to cooperation with PHS HYDROTOR S.A. in Tuchola, Poland.
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Kalinski, K.J., Galewski, M.A., Mazur, M.R. (2019). Simplified Map-based Selection of Optimal Spindle Speeds When Milling Complex Structures. In: Uhl, T. (eds) Advances in Mechanism and Machine Science. IFToMM WC 2019. Mechanisms and Machine Science, vol 73. Springer, Cham. https://doi.org/10.1007/978-3-030-20131-9_399
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DOI: https://doi.org/10.1007/978-3-030-20131-9_399
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