Abstract and keywords
Abstract (English):
The analysis of a technological system for two-cutter profile turning is shown. An unstable form of oscillations in the “cutter-blank” system in the course of profile turning is considered. The dependencies allowing the estimation of an oscillation value at machining are shown. Some experimental investigations confirming theoretical assumptions are shown.

Keywords:
two-cutter turning; profile surface; oscillations; surface quality; process efficiency.
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References

1. Matalin, A.A. Impact of SPID system oscillations and allowance unevenness upon surface quality at fine boring / A.A. Matalin, K.V. Lomakin. - In the book: Efficient Technology and Automation for Control of Machine Parts Machining. - L.: Mechanical Engineering, 1970. - pp. 219 - 225.

2. Vozhzhov, A.A. Peculiarity analysis in computation of cutting forces at turning with cutter sawtooth oscillations in radial direction // Bulletin of SevNTU: Proceedings, Edition 139/2013. Set: Mechanical Engineering and Transport. - Sevastopol, 2013. pp. 45 - 52.

3. Vozhzhov, A.A., Khudaimuratov, M.A. Analysis of relative forced oscillations of a tool and a blank at profile turning // Bulletin of Modern Technologies: Proceedings of Sevastopol State Uni. - Sevastopol: SevSU, 2016. Edition 4. - pp.10 - 20.

4. Pashkov, E.V. Technological Fundamentals in Thin-walled Cylindrical Parts Turning: Reference Book. - Sevastopol: Publishing House of SevNTU, 2000. - pp. 425

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