Obrabotka Metallov 2018 Vol. 20 No. 3

OBRABOTKAMETALLOV Vol. 20 No. 3 2018 17 TECHNOLOGY face roughness with the use of neural network models]. Neirosіt’ovі tekhnologії ta їkh zastosuvannya , 2014, pp. 24–35. 20. Kovalevskyy S.V. Acoustic monitoring with neural network diagnostics. American Journal of Neural Net- works and Applications , 2015, vol. 1, iss. 2, pp. 39–42. Conflicts of Interest The authors declare no conflict of interest. © 2018 The Authors. Published by Novosibirsk State Technical University. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/ ).