Technological Assurance of Fiberglass Composites Surface Layer Quality during End Milling

OBRABOTKAMETALLOV Vol. 22 No. 4 2020 38 TECHNOLOGY References 1. Matthews F.L., Rawlings R.D. Composite materials: engineering and science . Oxford, The Alden Press, 1999. 480 p. ISBN 978-1-8557-3473-9. 2. Bataev A.A., Bataev V.A. Kompozitsionnye materialy: stroenie, poluchenie, primenenie [Composite materials: structure, production, application]. Novosibirsk, NSTU Publ., 2002. 384 p. ISBN 5-7782-0315-2. 3. Chung D.D.L. Composite materials: functional materials for modern technologies . London, Springer-Verlag, 2004. 293 p. ISBN 978-1-4471-3734-0. DOI: 10.1007/978-1-4471-3732-0. 4. Mehdikhani M., Gorbatikh L., Verpoest I., Lomov S.V. Voids in fi ber-reinforced polymer composites: a review on their formation, characteristics, and effects on mechanical performance. Journal of Composite Materials , 2019, vol. 53, iss. 12, pp. 1579–1669. DOI: 10.1177/0021998318772152. Technological Assurance of Fiberglass Composites Surface Layer Quality during End Milling Andrei Markov a , Vyacheslav Nekrasov b , Jian Su c , Azhar Salman d , Sergei Gayst e , Mikhail Andreev f, * I.I. Polzunov Altai State Technical University, 46 Lenina avenue, Barnaul, Altai region, 656038, Russian Federation a https://orcid.org/0000-0002-3101-9711 , andmarkov@inbox.ru , b https://orcid.org/0000-0002-8122-4641, sla44@mail.ru, c https://orcid.org/0000-0001-5120-3623, 278507234@qq.com , d https://orcid.org/0000-0002-6584-1439, azharmansoor76@gmail.com, e https://orcid.org/0000-0001-8697-6263, sergei-gaist@mail.ru , f https://orcid.org/0000-0002-3660-3343, m194@mail.ru Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science. 2020 vol. 22 no. 4 pp. 31–40 ISSN: 1994-6309 (print) / 2541-819X (online) DOI: 10.17212/1994-6309-2020-22.4-31-40 Obrabotka metallov - Metal Working and Material Science Journal homepage: http://journals.nstu.ru/obrabotka_metallov ARTICLE INFO Article history : Received: 29 September 2020 Revised: 29 October 2020 Accepted: 15 November 2020 Available online: 15 December 2020 Keywords : Milling Delamination Composite material Cutting parameters ABSTRACT Introduction . Today fi berglass is one of the most common composite materials. Therefore, its mechanical processing continues to be the subject of many studies. In many scienti fi c publications, the in fl uence of cutting modes and structural and geometric parameters of the tool on the roughness of the machined surface, cutting forces and wear of the cutting tool has been established. The purpose of this work is to study the effect of machining modes on delamination and roughness of fi berglass composites during end milling, as well as testing the hypothesis about the effect of torque on the delamination. The relevance of the study is due to the fact that delamination, along with roughness, has a signi fi cant impact on the quality of processing and subsequent assembly of the fi nished product. A criterion is proposed for assessing the magnitude of the delamination of composite materials during its machining. The results of experimental studies of the torque on the cutter, the relative coef fi cient of delamination and surface roughness from cutting conditions are presented. Methods : factorial experiment using an experimental assembly developed by the authors based on a piezoelectric torque sensor. The installation allows real-time recording of the change in torque during the milling process, depending on the modes of operation. Results and Discussion . A comparative analysis of the obtained dependences showed that the torque is directly related to delamination. To reduce the delamination, the depth of cut should be decreased, and in order to ensure the speci fi ed productivity, the feed and the rotational speed of the cutter should be increased. The presented results con fi rm the prospects of the developed approach aimed at machining new classes of composite materials. For citation: Markov A.M., Nekrasov V.N., Su J., Salman A.M., Gayst S.V., Andreev M.V. Technological assurance of fi berglass composites surface layer quality during end milling. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science , 2020, vol. 22, no. 4, pp. 31–40. DOI: 10.17212/1994-6309-2020-22.4-31-40. (In Russian). ______ * Corresponding author Andreev Mikhail V. , Ph.D. (Engineering) I.I. Polzunov Altai State Technical University, 46 Lenina avenue, 656038, Barnaul, Russian Federation Tel.: +7 (960) 962-73-11, e-mail: m194@mail.ru