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Physical and Mathematical Model of the Process of Face Grinding of Rails with Abrasive Wheels Operating at Speed of 50 m/s

  • T. N. Orlova
  • I. Y. Orlov
  • N. S. Hvan
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

At rough grinding, the rate of the abrasive mass loss by the wheel (self-sharpening) depends, from the one hand, on magnitude of the power load accruing to each operating grain of the wheel, and from the other hand, on the strength and quantity of the bonding determining the hardness of the wheel, i.e., its capability to keep the grain from being torn out from the bonding until obtaining the biggest worn place. It is necessary to determine practical force operating upon the grain. However, for each power load on different types of rails, it is necessary to select a different hardness of the wheel, which ensures the retention of blunted grains at various power loads on the wheel. In this case, the increase in the hardness of the wheel, obtained by increasing the volume of the bonding and reducing the porosity of the wheel, reduces the self-sharpening of the wheel (smaller loss of blunted grains), which leads to the termination of cutting and metal removal, strong heat generation, and metal burns. As a result, we invented the dependence that makes it possible to determine the practical force operating upon a single grain of an abrasive wheel force taking into account the operating modes of the real grinding machine, the properties of the treated surface, and the wheel structure.

Keywords

Abrasive Grinding Single grain Rails Grinding tool 

References

  1. 1.
    Orlov IY (2017) Influence of technological methods on performance criteria. Materials science and technology of structural materials are the most important components of the modern engineer’s competence, Volgograd, 2007Google Scholar
  2. 2.
    Orlov IY and Shumyacher VM (2008) Study of the thermal conductivity of development prototypes for the selection of filler, which increases the strength characteristics of the face grinding wheels (with the expansion of environmental problems). In: The Prospective directions of the engineering and metal working technology development: materials of the international, DSTU, Rostov-on-Don, 29 Sept–3 Oct 2008Google Scholar
  3. 3.
    Baidakova NV and Kryukov SA (2014) About the influence of the abrasive grain shape on the cutting ability of the tool on the operations of stripping. In: New materials and technologies: the state of the issue and the development prospectsGoogle Scholar
  4. 4.
    Orlov IY and Orlova TN (2004) Investigation of the influence of two-stage mixing of the components of the molding mixture on the processability of the mixture (obtaining of the free-flowing molding mixtures) and the physical and mechanical properties of the abrasive tool on a bakelite bonding. In: Abrasive processing, abrasive tools and materials. Shlifabraziv-2004, VolzhskyGoogle Scholar
  5. 5.
    Orlov IY (2015) The efficiency increase of the operation of steels surface grinding with a bakelite tool by selecting fillers which reduce the heat stress of the process. Handbook. Eng J Appl 6(219)Google Scholar
  6. 6.
    Zamula KP (1986) Forecasting of the longevity of railway rails according to the results of laboratory tests. Ukr. Scientific Research Institute of metals, KharkovGoogle Scholar
  7. 7.
    Krysanov LG (1983) Investigation of the operational stability of mass production rails. Report on research and development, No. SR 01825015446, Ident. No. 02830073330, MoscowGoogle Scholar
  8. 8.
    Kosmin VV (1994) High-speed grinding of rails in the USA. RW transport abroad, Ser. 4. The railway and railway equipment. Design and construction. EI, Central Scientific Research Institute of Technical and Economic Research Ministry of Railways, Pub. 1Google Scholar
  9. 9.
    Mashkovich ON (1995) Increasing the service life of rails due to their grinding. RW transport, Ser. 4. The railway and railway equipment. EI, Central Scientific Research Institute of Technical and Economic Research Ministry of Railways, No. 4Google Scholar
  10. 10.
    Orlov IY and Orlova TN (2007) Method for calculating of the specific amount of volatile substances during heat treatment of abrasive bakelite tools. In: Materials science and technology of structural materials are the most important components of the modern engineer’s competence, VolgogradGoogle Scholar
  11. 11.
    Pushkarskaya OY, Orlov IY (2004) Research and development of technology for processing (application) of bearing plants slurry for use in abrasive tools manufacturing. Publishing House of SUSU, Chelyabinsk, p 2004Google Scholar
  12. 12.
    Orlov IY (2010) Physical and mathematical model of the process of face grinding of rails by abrasive wheels. In: Science and education: problems, solutions and innovations. Publishing house, Part 1, VolgGASU, Volgograd, 9–10 Dec 2010Google Scholar
  13. 13.
    Kondakov NP (1958) The configuration of the head and the breakage of the rails with the troughs. The railway and railway equipment, No. 11Google Scholar
  14. 14.
    Orlova TN et al (2003) Investigation of the processes occurring during the reaction of the polycondensation of phenol-formaldehyde resins. Publishing House SUSU, Chelyabinsk, 2003Google Scholar
  15. 15.
    Nosenko VA et al (2006) To the question of the structure of an abrasive tool. Handbook. Eng JGoogle Scholar
  16. 16.
    Orlov IY (2012) Increasing the cutting properties of an abrasive tool for grinding railway rails. In: The processes of abrasive treatment, abrasive tools and materials. Shlifrabriv-2011, VolgGASU, VolgogradGoogle Scholar
  17. 17.
    Orlov IY and Orlova TN (2003) Investigation of the processes occurring during the polycondensation reaction of phenol-formaldehyde resins. In: Theory, technology and equipment for the manufacturing of abrasive tools, Publishing House of SUSU, ChelyabinskGoogle Scholar
  18. 18.
    Kurdyukov VI (2000) Scientific foundations of design, manufacture and operation of abrasive tools. Dissertation, KurganGoogle Scholar
  19. 19.
    Ostrovsky VI (1981) Theoretical foundations of the grinding process. Publishing House of Leningrad State University, LeningradGoogle Scholar
  20. 20.
    Kryukov SA and Slavin AV (2013) Baidakova N.V. Forecasting of mechanical strength of abrasive composite materials. Technol Mech Eng 10Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Volzhsky Polytechnic Institute (Branch) Volgograd State Technical UniversityVolzhskyRussia

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