20.500.12556/DKUM-97104 Optimization of machining performance in deep hole boring: a study on cutting tool vibration and dynamic vibration absorber design In the realm of precision engineering, particularly in deep hole boring processes, tool vibration emerges as a critical determinant of machining performance. This investigation elucidates the genesis of self-excited vibrations within deep hole boring operations and delineates the underlying mechanisms of cutting tool vibration. A focal point of this study is the optimal alignment of the boring bar to mitigate vibrational impacts, thereby enhancing surface finish quality and extending tool longevity. Central to this analysis is the employment of a Dynamic Vibration Absorber (DVA) aimed at attenuating cutting tool vibration. The deployment of DVA necessitates precise identification of modal parameters, namely the equivalent stiffness (K) and mass (M) of the cutting tool. This research juxtaposes various scholarly methodologies to amalgamate theoretical calculations with simulation approaches, thereby acquiring accurate modal parameters. Utilizing Matlab software, the vibration amplitude of the boring bar under varying spring stiffness scenarios was examined. Results indicate a direct correlation between increased stiffness and reduced amplitude, particularly when the frequency ratio 'g' ranges between 0.5 and 1.1. Consequently, a stiffer DVA configuration is posited as more effective in vibration reduction. Furthermore, the study conducted frequency sweep experiments on a damping boring bar, utilizing a vibration excitation platform. These experiments revealed the existence of an optimal stiffness value for the DVA, thereby underscoring the significance of stiffness matching in vibration mitigation strategies. deep hole boring boring bar machining performance vibration dynamic vibration absorber stiffness matching Matlab precizno inženirstvo globoko vrtanje globoke izvrtine svedri vibracije true false true Chair of Production Engineering (CPE), University of Maribor Faculty of Mechanical Engineering Angleški jezik Slovenski jezik https://apem-journal.org/ Content from this work may be used under the terms of the Creative Commons Attribution 4.0 International Licence (CC BY 4.0). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Članek v reviji 2026-02-18 10:27:57 2026-02-18 10:27:58 2026-03-11 08:58:31 0000-00-00 00:00:00 2023 0 0 str. 371-380 no. 3 Vol. 18 Sep. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2023-05-20 2023-11-17 2023-11-19 621.952.8 268815363 10.14743/apem2023.3.479 1854-6250 APEM18-3_371-380.pdf APEM18-3_371-380.pdf 1 3C388DC5A769349789B12C7A9BE314C7 675f4fc7e2d6a2daed7517ef98c69392e11a23d9140f9b023b3bf707b4f94324 ac022bdf-0cac-11f1-8b1a-00155d580e1a https://dk.um.si/Dokument.php?lang=slv&id=203443 https://apem-journal.org/Archives/2023/APEM18-3_371-380.pdf 0 b39b9a0a-0cac-11f1-8b1a-00155d580e1a https://dk.um.si/Dokument.php?lang=slv&id=203444 Fakulteta za strojništvo Advances in production engineering & management 0 0 0