The investigation of forces' component during frictional hardening of cylindrical surfaces of machine parts

The investigation of forces' component during frictional hardening of cylindrical surfaces of machine parts

Authors

  • V. I. Gurey Lviv Polytechnic National University, 12 Bandera street, Lviv, Ukraine, 79013

DOI:

https://doi.org/10.31471/1993-9965-2020-2(49)-81-90

Keywords:

friction treatment; nanocrystalline structure; dynamometer; force components

Abstract

Friction treatment refers to methods of surface hardening (strengthening) using highly concentrated energy sources. After processing in the surface layers of the parts a hardened (reinforced) white layer with a nanocrystal-line structure is formed. Friction treatment of the cylindrical surfaces of the samples was performed on an upgrad-ed lathe (model 16K20), on which instead of a tool-post was installed a special device for autonomous tool drive. A metal disk made of steel 45 is used as a tool. Mineral oil with active additives containing polymers was used as a technological medium in the process of friction treatment. A special dynamometer was developed to study the components of the force that occurs in the contact area of the tool-part during the frictional hardening of the cy-lindrical surfaces of the parts. The immovable elastic elements of the dynamometer are fixed on conical holes in the rear headstock and spindle. To make rotation impossible of the elastic element in the spindle, it is mounted in the adapter bushing through the bearings. Studies have shown that the modes of friction treatment significantly affect the normal Py and the tangential component Pz of the force that occurs in the contact area of the tool-part. The increasing of the part’s rotational velocity slightly affects into magnitude of the force components that occurs in the contact area of the tool-part during processing with the longitudinal feed S = 0.3 mm/rev and the depth of pressing the tool into the workpiece t = 0.1 mm. When increase the depth of pressing the tool into the workpiece from 0.1 to 0.3 mm and part’s rotational velocity equal n = 40 rpm, the normal force component Py increased from 380 N to 690 N, and the tangential component Pz – from 28 N to 47 N. And in that the same time increasing the part’s rotational velocity to 125 rpm leads to an increase the normal component Py from 510 N to 1160 N, and the tangential component Pz – from 38 N to 69 N.

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References

Inzheneriya poverkhni / K. A. Yushchenko, Yu. S. Borysov, V. D. Kuznetsov [etc.]. Kyiv : Naukova dumka, 2007. 558 p. [in Ukrainian]

Dearnley P. A. Introduction to Surface Engineering. New York : Cambridge university press, 2017. 497 p. URL: www.cambridge.org/

Inzheneriia poverkhnosti detalei / Pod red. A.G. Suslova. Moscow: Mashinostroenie, 2008. 320 p. [in Russian]

Tian L. A Short Review on Mechanical Behavior of Nanocrystalline Materials. International Journal of Metallurgy and Metal Physics (2:008). 2017. P. 2–13.

Waugh D.G., Lawrence J. Laser Surface Engineering. Processes and Applications. Cambridge: Woodhead Publishing, 2014. 718 p.

Zhang Fangyuan, Duan Chunzheng, Sun Wei, Ju Kang Effects of cutting conditions on the microstructure and residual stress of white and dark layers in cutting hardened steel. Journal of Materials Processing Tech. (266), 2019. P 599-611.

Gurey V., Ihor Hurey The Effect of the Hardened Nanocrystalline Surface Layer on Durability of Guideways. Lecture Notes in Mechanical Engineering. Advanced Manufacturing Processes. Selected Papers from the Grabchenko’s International Conference on Advanced Manufacturing Processes (InterPartner-2019), (September 10-13, 2019, Odessa, Ukraine)/ Odessa, 2020. P. 63–72. URL: https://doi.org/10.1007/978-3-030-40724-7_7.

Gurey V. Ihor Hurey Influence of Surface Hardened Nanocrystalline Layers on the Resistance of Contact Fatigue Destruction. Lecture Notes in Mechanical Engineering. Advances in Design, Simulation and Manufacturing III. Proceedings of the 3rd International Conference on Design, Simulation, Manufacturing: The Innovation Exchange, DSMIE-2020, June 9-12, 2020, Kharkiv, Ukraine – Volume 1: Manufacturing and Materials Engineering, 2020, P. 483–491. URL: https://doi.org/10.1007.978-3-030-50794-7_47

Kovač P., Gostimirović M. Grinding Force of Cylindrical and Creep-Feed Grinding Modeling. Open access peer-reviewed chapter. 2018. URL: http://dx.doi.org/10.5772/intechopen.76968

Sutowski P. The effect of process parameters on grinding forces and acoustic emission in machining tool steel 1.2201/NC10. Journal of Mechanical and Energy Engineering. Vol. 1, No. 1(41) – 2017. P. 37–44. URL:http://www.jmee.tu.koszalin.pl/download_article/jmee_2017_01_037044.pdf

Published

2020-12-30

How to Cite

Гурей, В. І. (2020). The investigation of forces’ component during frictional hardening of cylindrical surfaces of machine parts: The investigation of forces’ component during frictional hardening of cylindrical surfaces of machine parts. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas, (2(49), 81–90. https://doi.org/10.31471/1993-9965-2020-2(49)-81-90