Obrabotka Metallov. 2017 no. 3(76)

OBRABOTKAMETALLOV № 3 (76) 2017 25 TECHNOLOGY References 1. ReznikovA.N., Aleksentsev E.I., Barats Ya.I., Belostotskii V.L., Budnik N.V., Burochkin Yu.P., Gavrilov G.M., Gomel’skii M.V., Gordeev A.V., Drozhzhin V.I., Zgonnik N.P., Zubar’ V.P., Kremen’ Z.I., Murakhtanova N.M., Enhancing the Effectiveness of the Diamond Metal Bond Instrument when Grinding High-Strength Materials Alexander Yanyushkin 1, a , Dmitry Lobanov 1, b,* , Vadim Skeeba 2, с , Viktor Gartfelder 1, d , Larisa Sekletina 1, e 1 I.N. Ulianov Chuvash State University, 15 Moskovsky Prospekt, Cheboksary, 428015, Russian Federation 2 Novosibirsk State Technical University, 20 Prospect K. Marksa, Novosibirsk, 630073, Russian Federation a http://orcid.org/0000-0003-1969-7840 , yanyushkin@brstu.ru , b http://orcid.org/0000-0002-4273-5107 , lobanov@front.ru , c http://orcid.org/0000-0002-8242-2295 , skeeba_vadim@mail.ru , d http://orcid.org/0000-0002-6759-6756 , harvik48@list.ru , e larsek@list.ru ARTICLE INFO Article history : Received: 11 May 2017 Revised: 26 July 2017 Accepted: 15 August 2017 Available online: 15 September 2017 Keywords : Combined grinding Diamond wheel Metallic bond Electrochemical wheel dressing Surface quality ABSTRACT The objective is to identify the nature of the clogging process at the implementation of abrasive instrument in the processing of tough materials and to propose the technology recommendations to minimize the clogging, which will enable the enhanced use of the diamond metal bond instrument during grinding and reducing the costs of advanced and competitive products manufacturing. The research provides the analysis of the diamond metal bond wheels cutting capacity. It also gives a brief overview of the reasons for the loss of the abrasive instrument working capacity as well as evaluates the adhesive and diffusion processes in the cutting zone. The clogging of the grinding wheel is noted to be the main reason for the low working capacity of the diamond instrument. Methods: The experimental research was carried out on the 3D642E machine modernized for the process of the electric discharge diamond grinding and corresponding to the metrological requirements for the verification of product quality indicators. Structural research was carried out using optical and scanning microscopy, spectral and X-ray analysis. The samples were investigated on ARL X’TRA X-ray diffractometer, Carl Zeiss EVO50 scanning electron microscope with the EDS X-Act Integrated Chemical Analyzer and Carl Zeiss Axio Observer A1m optical microscope. The surface of the samples was additionally investigated by optical interferometry techniques using the surface topography complex Zygo Newviewtm 7300 which is designed to define the microrelief and structure parameters of the objects of technical and biological origin. Results and discussion: The proposed technology for the grinding of high-strength and nanoreinforced materials by the diamond metal bond wheels is based on maintaining the wheel high cutting properties by a continuous electrochemical dressing. The use of combined grinding technology makes it possible to significantly increase the working capacity and scope of the diamond metal bond abrasive instrument as well as to improve the processing of various hard alloys containing tungsten, cobalt, titanium or tantalum, oxide and carbide metal ceramics and nanostructured material based on zirconium boride. For citation: Yanyushkin A.S., Lobanov D.V., Skeeba V.Yu., Gartfelder V.A., Sekletina L.S. Enhancing the effectiveness of the diamond metal bond instrument when grinding high-strength materials. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science , 2017. no. 3 (76), pp. 17–27. doi: 10.17212/1994-6309-2017-3-17-27. (in Russian). ______ * Corresponding author Lobanov Dmitry V ., D.Sc. (Engineering), Associate Professor I.N. Ulianov Chuvash State University, 3 Spiridona Mikhailova Str., 428015, Cheboksary, Chuvash Republic, Russian Federation Tel.: +7-908-303-47-45 , e-mail: lobanov@front.ru Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science. 2017 no. 3(76) pp. 17–27 ISSN: 1994-6309 (print) / 2541-819X (online) DOI: 10.17212/1994-6309-2017-3-17-27 Obrabotka metallov - Metal Working and Material Science Journal homepage: http://journals.nstu.ru/obrabotka_metallov