Email this article THE STUDY OF HARD TURNING OF 105WCr6 STEEL
- Authors: Rastorguev D.A.1, Sevastiyanov A.A.1
-
Affiliations:
- Togliatti State University
- Issue: No 4 (2018)
- Pages: 24-32
- Section: Articles
- URL: https://vektornaukitech.ru/jour/article/view/113
- DOI: https://doi.org/10.18323/2073-5073-2018-4-24-32
- ID: 113
Cite item
Full Text
Abstract
The paper presents the results of the experiment on the processing of 105WCr6 steel ring blanks prehardened up to the HRC 55 hardness. This material is applied to produce cutting and measuring tools with the high requirements for the accuracy in size and flatness after the thermal treatment. The experiment involved the ring facing using the 16B16T1C1 machine with the CBN plate cutter without the use of a lubricating and cooling fluid. The cutting rate and the advancement and depth of cutting were varied during the three-factor experiment. For the wider industrial application, hard turning requires the additional research related to the study of special aspects of chip formation, the identification of the dependencies of cutting forces and temperature in the cutting zone on the processing mode. The authors studied the chip formation process and the quality of processed surface and carried out the systematization of chip types depending on the cutting modes. The main technology factor determining a chip type is the cutting rate. When it increases the chip type changes from a continuous chip through a transition form to a segmental chip. When zooming in a chip, the welldefined chip segmentation can be seen. When increasing the cutting rate the segments become more defined that causes the change of a chip type. At the critical value of the cutting rate, the chip comes from a discontinuous one to a segmental chip. In this case, the dynamic component of cutting force related to the chip formation process grows. Such change in the cutting process dynamics is accompanied by the corresponding traces of a tool on a processed surface. Stable type of chip formation promotes the formation of a surface with the regular minimum height microrelief. The growth of chip formation dynamism, when increasing the cutting rate, causes the formation of a moire effect on a processed surface. The study identified the processing modes optimal in terms of efficiency, surface condition and chip type. The results obtained can be used to organize an automated manufacturing with the use of CNC machines and automatic lines.
About the authors
D. A. Rastorguev
Togliatti State University
Author for correspondence.
Email: rast_73@mail.ru
Rastorguev Dmitry Aleksandrovich, PhD (Engineering), assistant professor of Chair “Equipment and Technologies of Machinery Production”
445020, Russia, Togliatti, Belorusskaya Street, 14.
Russian FederationA. A. Sevastiyanov
Togliatti State University
Email: alex-119977@yandex.ru
Sevastiyanov Aleksandr Aleksandrovich, student of Institute of Mechanical Engineering
445020, Russia, Togliatti, Belorusskaya Street, 14.
Russian Federation
References
- Kozochkin M.P., Sabirov F.S., Popikov A.N. Investigation of solid turned. Vestnik Ufimskogo gosudarstvennogo aviatsionnogo tekhnicheskogo universiteta, 2009, vol. 12, no. 4, pp. 24–29.
- Grubyy S.V., Lapshin V.V. Research of cutting properties of boron nitride cutters. Nauka i obrazovanie: nauchnoe izdanie MGTU im. N.E. Baumana, 2012, no. 6, pp. 61–76.
- Kozochkin M.P., Seleznev A.E. Research of vibroacoustic signal at moment of penetration during processing of hardened steels. Vestnik MGTU Stankin, 2015, no. 4, pp. 52–58.
- Trofimov V.V., Nesmeyanov E.A. Regulation of amplitude of fluctuations of the tool at processing on multispindle machine tools for hard turning. Vestnik Voronezhskogo gosudarstvennogo tekhnicheskogo universiteta, 2011, vol. 7, no. 3, pp. 61–65.
- Pronin A.I., Shchelkunov E.B., Vinogradov S.V., Shchelkunova M.E., Mylnikov V.V. Investigation of cutting force in hardened steel turning. Uchenye zapiski Komsomolskogo-na-Amure gosudarstvennogo tekhnicheskogo universiteta, 2016, vol. 1, no. 4, pp. 63–66.
- Kuznetsov V.P., Skorobogatov A.S., Voropaev V.V., Petunin A.A. Study of hard turning of deposited surface with a tool with a closed system of heat removal from a replaceable insert. Vestnik Rybinskoy gosudarstvennoy aviatsionnoy tekhnologicheskoy akademii im. P.A. Soloveva, 2017, no. 2, pp. 169–174.
- Kozochkin M.P., Sabirov F.S., Seleznev A.E. Vibroacoustic monitoring of cutting edge machining of hardened steel. Vestnik MGTU Stankin, 2018, no. 1, pp. 23–30.
- Kozochkin M.P., Sabirov F.S., Popikov A.N. Vibroacoustic diagnostics of hard turning. Vestnik MGTU Stankin, 2009, no. 1, pp. 23–29.
- Sotova E.S., Lazareva E.M. Increasing of cutting efficiency of heat-treated steel through the application of cutting tools of high-strength composite ceramic with coating. Izvestiya Moskovskogo gosudarstvennogo tekhnicheskogo universiteta MAMI, 2012, vol. 2, no. 2, pp. 184–189.
- Pronin A.I., Mylnikov V.V., Chernyshov E.A. A Study of the Influence of Machining Parameters on the Surface Roughness of the 40Kh Tempered Steel Parts when Turning by Ceramic Cutters. Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroenie, 2017, no. 8, pp. 41–45.
- Rigal J.F., Zapciu M., Mabrouki T., Belhadi S. Saw tooth chip formation in hard turning and the approach to separate process segmentation and machine assembly vibration frequencies. Proceedings of the 15th International Conference on Manufacturing Systems – ICMaS. USA, Editura Academiei Române Publ., 2006, pp. 133– 136.
- Bouacha K., Yallese M.A., Khamel S., Belhadi S. Analysis and optimization of hard turning operation using cubic boron nitride tool. Journal of Refractory Metals and Hard Materials, 2014, vol. 45, pp. 160–178.
- Mabrouki T., Courbon C., Zhang Y., Rech J., Nélias D., Asad M., Hamdi H., Belhadi S., Salvatore F. Some insights on the modelling of chip formation anditsmorphology during metal cutting operations. Comptes rendus mecanique, 2016, vol. 344, no. 4-5, pp. 335–354.
- Azizi M.W., Belhadi S., Yallese M.A., Mabrouki T., Rigal J.-F. Surface roughness and cutting forces modeling for optimization of machining condition in finish hard turning of AISI 52100 steel. Journal of Mechanical Science and Technology, 2012, vol. 26, no. 12, pp. 4105–4114.
- Belhadi S., Mabrouki T., Rigal J.-F., Boulanouar L. Experimental and numerical study of chip formation during straight turning of hardened AISI 4340 steel. Pro- ceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2005, vol. 219, no. 7, pp. 515–524.
- Caruso S., Outeiro J.C., Umbrello D., M’Saoubi R. Modeling and experimental validation of the surface residual stresses induced by hard machining of AISI H13 tool steel. International journal of material forming, 2010, vol. 3, supply 1, pp. 515–518.
- Das S.R., Panda A., Dhupal D. Experimental investigation of surface roughness, flank wear, chip morphology and cost estimation during machining of hardened AISI 4340 steel with coated carbide insert. Mechanics of Advanced Materials and Modern Processes, 2017, vol. 3, pp. 1–15.
- Tebassia H., Yallesea M.A., Belhadi S., Girardin F., Mabrouki T. Quality-productivity decision making when turning of Inconel 718 aerospace alloy: A response surface methodology approach. International Journal of Industrial Engineering Computations, 2017, vol. 8, no. 3, pp. 347–362.
- Kim D.M., Kim D.Y., Banerjee N., Park H.W. Predictive modeling for the cryogenic cooling condition of the hard turning process. The International Journal of Advanced Manufacturing Technology, 2018. Article in press.
- Ko T.J., Kim H.S. Surface Integrity and Machineability in Intermittent Hard Turning. International journal of advanced manufacturing technology, 2001, vol. 18, no. 3, pp. 168–175.
Supplementary files
