Lapshin V.P. 2020 Vol. 22 No. 1

OBRABOTKAMETALLOV Vol. 22 No. 1 2020 79 EQUIPMENT. INSTRUMENTS 24. Lapshin V.P., Turkin I.A. Dynamic in fl uence of the spindle servo drive on the drilling of deep narrow holes. Russian Engineering Research , 2015, vol. 35, no. 10, pp. 795–797. DOI: 10.3103/S1068798X15100111. 25. Ryzhkin A.A., Shuchev K.G., Klimov M.M. Obrabotka materialov rezaniem [Processing of materials by cutting]. Rostov-on-Don, Feniks Publ., 2008. 418 p. ISBN 978-5-7890-0413-X. 26. Vul’f A.M. Rezanie metallov [Cutting of metals]. Leningrad, Mashinostroenie Publ . , 1973. 496 p. 27. Zorev N.N. Voprosy mekhaniki protsessa rezaniya metallov [Questions of mechanics of metal cutting process] . Moscow, Mashgiz Publ., 1956. 367 p. 28. Makarov A.D. Optimizatsiya protsessov rezaniya [Optimization of cutting processes]. Moscow, Mashinostroenie Publ . , 1976. 278 p. 29. PopovE.P., Pal’tov I.P. Priblizhennyemetody issledovaniya nelineinykh avtomaticheskikh sistem [Approximate methods for studying nonlinear automatic systems] . Moscow, Mashgiz Publ., 1960. 792 p. Con fl icts of Interest The author declare no con fl ict of interest.  2020 The Author. Published by Novosibirsk State Technical University. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/ ).