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Change in Microhardness of Metal Depending on Wetting Ability of Lubricating Coolant

  • I. V. BashkirtsevaEmail author
  • T. N. Orlova
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

On the basis of the theoretical and experimental studies, a new technological direction for the rational use of the composition of lubricating coolant with the contact interaction of the lubricating coolant with the metal, including the determination of the physicochemical parameters of the lubricating coolant and the evaluation of their quality by performance, has been proposed. The prerequisites for the active interaction of the medium and the metal as the abrasive grain moves through it arise under conditions of significant normal and shear stresses. At the same time, in the deformed metal volumes, dislocation friction emerges on the surface, cracks form and microdefects develop due to surface activation. The decrease in the shear resistance of the boundary lubricant film in the “grain-to-metal” contact, an improvement in its mobility and an increase in the bearing capacity are the reasons that an increase in the abrasive sliding speed on the metal when working with hydrocarbon and emulsion lubricating coolant leads to a decrease in the friction coefficient.

Keywords

Lubricating coolant Abrasive treatment Microhardness of metals 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

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

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