Research of operational characterizations of cutting discs with oriented abrasive grains

V. A. Korotkov, S. I. Petrushin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Efficiency of the polishing process is determined by the properties of abrasive grains, including its form parameter and orientation in the body of the grinding tool. It is possible to improve the operational characterizations of the grinding instruments, in particular – cutting discs, by ordering of the grain geometry, selection of the rational form and orientation of abrasive grains for specific processing conditions and parameters of the power load. For the solution of such problem the developed and patented method for production of grinding tools with the orientated abrasive grains is offered [1]. According to the specified method the cutting discs with radial and tangential orientation of abrasive grains are made. As a comparative standard, discs without orientation of abrasive grains are made also. Comparative tests by cutting according to the scheme of pressing of workpiece to a disc with a constant effort are carried out. It is established that orientation of abrasive grains significantly influences the operational characterizations of cutting discs. So, the cutting ability of cutting discs with radial orientation of abrasive grains is 15-17% higher during processing of various materials, than at standard tools. The grinding coefficient of cutting discs with tangential orientation of abrasive grains is 25-29% higher, than at usual discs with non-oriented grains. Results of an assessment of effective power of cutting in addition confirm that discs with the radial orientation of grains are working with the greatest intensity and at the same time with biggest wear. Further, on decrease, cutting discs with non-oriented grains follow. Instruments with tangential orientation of abrasive grains are characterized by the smallest cutting ability and the smallest wear. Such effect is caused by that the radial focused abrasive grains possess the greatest sizes of forward corners, and tangential focused grains possess the smallest sizes. It is established also that application of cutting discs with radial orientation of abrasive grains in comparison with ordinary tools allows to reduce temperature in a cutting zone by 20-30 °C and to reduce the size of zones of thermal influence.

Original languageEnglish
Title of host publicationInnovative Technologies and Economics in Engineering
EditorsD.A. Chinakhov, D.A. Chinakhov
PublisherTrans Tech Publications Ltd
Pages224-230
Number of pages7
ISBN (Electronic)9783038352815, 9783038352815
DOIs
Publication statusPublished - 1 Jan 2014
Event5th International Scientific Practical Conference on Innovative Technologies and Economics in Engineering, 2014 - Yurga, Russian Federation
Duration: 22 May 201423 May 2014

Publication series

NameApplied Mechanics and Materials
Volume682
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference5th International Scientific Practical Conference on Innovative Technologies and Economics in Engineering, 2014
CountryRussian Federation
CityYurga
Period22.5.1423.5.14

Keywords

  • Cutting ability
  • Cutting discs
  • Cutting temperature
  • Effective power of cutting
  • Form parameter of the abrasive grains
  • Front angle of the abrasive grains
  • Grinding coefficient
  • Grinding instruments
  • Orientation angle of the abrasive grains
  • Polishing process

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Korotkov, V. A., & Petrushin, S. I. (2014). Research of operational characterizations of cutting discs with oriented abrasive grains. In D. A. Chinakhov, & D. A. Chinakhov (Eds.), Innovative Technologies and Economics in Engineering (pp. 224-230). (Applied Mechanics and Materials; Vol. 682). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/AMM.682.224