Title of the article

PERFORMANCE CHARACTERISTICS OF STEEL CUTTING DISCS WITH A MODIFIED SURFACE FOR CUTTING BRITTLE NON-METALLIC MATERIALS

Authors

KISELEV Mikhail G., D. Sc. in Eng., Prof., Head of Department “Device Design and Manufacture”, Instrumentation Engineering Faculty, Belarusian National Technical University, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

GABEC Viacheslav L., D. Sc. in Eng., Assoc. Prof., Associate Professor of Department “Device Design and Manufacture”, Instrumentation Engineering Faculty, Belarusian National Technical University, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

BOHDAN Pavel S., Graduate Student of Department “Device Design and Manufacture”,Instrumentation Engineering Faculty, Belarusian National Technical University, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

ROSHCHIN Dmitrii V., Undergraduate Student of Department “Device Design and Manufacture”, Instrumentation Engineering Faculty, Belarusian National Technical University, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

In the section TECHNOLOGICAL MECHANICS
Year 2017 Issue 2 Pages 57–64
Type of article RAR Index UDK 621.9.048 Index BBK  
Abstract

The paper is devoted to the experimental estimation of the effect of electroerosive modification of the smooth surface of a steel (U8A) cutting disc on its operational parameters when cutting glass samples using free abrasive, in particular, on the intensity of sawing, the roughness of the cutting surface, the width of the cut and the wear resistance of the tool. The main provisions of the experimental research methodology are described, including a description of the devices for modifying the working and lateral surfaces of the disk, as well as the methods and means used to determine its operational parameters. The results of experimental studies reflecting the effect of modifying the surface of a disc on the intensity of sawing glass specimens, the roughness of the cutting surface, the width of the cut and the wear resistance of the tool are presented and discussed. It is shown that, as a result of modifying the surface of the disk, holes are formed on it, which serve as a kind of micro-folds in which an abrasive paste is fixed. Due to this, in comparison with the smooth surface of the disc, a greater number of abrasive grains fall directly into the treatment zone, thereby causing more intensive destruction of the sample material. It is established that, in comparison with the disk in the initial (smooth) state of the surface, modifying its working surface raises the sawing intensity 1,1 times, and with additional modification of its lateral surfaces 1,25 times, but at the same time 1,5–2 times the value Ra of the roughness of the surface of the cut increases and the width of the cut increases by a factor of 1,4. It has been experimentally shown that by periodically modifying the worn out surface of the disc, which is technically carried out directly during the operation, it is possible to maintain its high cutting ability throughout the entire time of use of the tool.

Keywords

cutting disc, free abrasive, abrasive paste, sawing, electro-erosion treatment, surface modification, cutting ability, brittle material

   You can access full text version of the article
Bibliography
  • Kurnosov A.I., Yudin V.V. Tehnologija proizvodstva poluprovodnikovyh priborov i integralnyh mikroshem [Manufacturing process of semiconductor devices and integrated circuits]. Moscow, Vysshaja shkola, 1986. 368 p.
  • Orlov P.N. [et al.] Dovodka pretcizionnykh detalei mashin [Finishing of precision machine parts]. Moscow, Mashinostroenie, 1978. 256 p.
  • Zaporozhskii V.P., Lapshinov B.A. Obrabotka poluprovodnikovykh materialov [Processing of semiconductor materials]. Moscow, Vysshaja shkola, 1986. 368 p.
  • Okatov M.A. [et al.] Spravochnik tekhnologa-optika [Handbook of the technologist-optics]. St. Petersburg, Politehnika, 2004. 679 p.
  • Zubakov V.G., Semibratov M.N., Shtandel S.K. Tekhnologiia opticheskikh detalei [Technology of optical parts]. Moscow, Mashinostroenie, 1985. 368 p.
  • Kiselev M.G., Drozdov A.V., Moskalenko A.V., Bohdan P.S. Modifikatciia iskhodnoi poverkhnosti provolochnogo instrumenta s tceliu pridaniia ei rezhushchei sposobnosti putem primeneniia elektrokontaktnoi obrabotki [Modification of the initial surface of a wire tool to give it a cutting ability by applying an electrocontact treatment]. Vestnik Belorussko-Rossiiskogo universiteta [Bulletin of the Belarusian-Russian University], 2012, no. 1, pp. 13–22.
  • Kiselev M.G., Drozdov A.V., Moskalenko A.V., Bohdan P.S. Vliianie parametrov rezhima elektrokontaktnoi obrabotki iskhodnoi poverkhnosti provolochnogo instrumenta na ego rezhushchuiu sposobnost [Effect of parameters of the mode of electrocontact treatment of the initial surface of a wire tool on its cutting ability]. Doklady BGUIR [Reports of BSUIR], 2013, no. 3, pp. 5–11.
  • Kiselev M.G., Drozdov A.V., Moskalenko A.V., Monich S.G., Bogdan P.S. Vliianie sposoba vypolneniia elektrokontaktnoi obrabotki iskhodnoi poverkhnosti provolochnogo instrumenta na ego rezhushchuiu sposobnost [Influence of the method of performing electrocontact treatment of the initial surface of a wire tool on its cutting ability]. Materialy, tekhnologii, instrumenty [Materials, technologies, tools], 2012, no. 4, pp. 83–88.
  • Kiselev M.G., Drozdov A.V., Bohdan P.S., Tcikhovich A.I. Opredelenie ekspluatatcionnykh pokazatelei otreznogo diska s modifitcirovannoi putem elektrokontaktnoi obrabotki poverkhnostiu [Determination of operational characteristics of the cutting disc with modified by electrocontact surface treatment]. Vestnik Belorussko-Rossiiskogo universiteta [Bulletin of the Belarusian-Russian University], 2015, no. 4, pp. 22–32.
  • Kiselev M.G., Drozdov A.V., Bohdan P.S., Sentemova D.V. Vliianie skorosti vrashcheniia rabochei poverkhnosti otreznogo diska v protcesse ee elektroerozionnoi obrabotki na rezhushchuiu sposobnost instrumenta [Influence of speed of the working surface cutting discs during on edm cutting ability tool]. Mekhanika mashin, mekhanizmov i materialov [Mechanics of machines, mechanisms and materials], 2016, no. 2, pp. 58–62.