Influence of technological parameters of centrifugal reinforcement upon quality indicators of parts

Authors

  • Любомир Ярославович Роп’як Ivano-Frankivsk National Technical University of Oil and Gas 15 Karpatska str., Ivano-Frankivsk, Ukraine, 76019, Ukraine https://orcid.org/0000-0001-7500-336X
  • Ірина Орестівна Шуляр Ivano-Frankivsk National Technical University of Oil and Gas 15 Karpatska str., Ivano-Frankivsk, Ukraine, 76019, Ukraine https://orcid.org/0000-0001-7500-336X
  • Олег Михайлович Богаченко Ivano-Frankivsk National Technical University of Oil and Gas 15 Karpatska str., Ivano-Frankivsk, Ukraine, 76019, Ukraine https://orcid.org/0000-0001-7500-336X

DOI:

https://doi.org/10.15587/1729-4061.2016.59850

Keywords:

technological parameters, centrifugal reinforcement, tungsten carbide particles, concentration, wear-resistance

Abstract

Analysis of surface and three-dimensional reinforcement methods to enhance the wear-resistance of parts is performed. The advantages of centrifugal reinforcement of the part blanks with two mutually perpendicular axes of rotation of the ceramic mold to produce the reinforced zone with desired properties are substantiated. The influence of technological parameters of centrifugal reinforcement of steel parts with tungsten carbide particles in the casting process on the concentration and the wear of the working area using the mathematical experimental design is investigated. Second-order regression models for dependencies of concentration and wear on the technological process parameters: the number of rotations around the horizontal and vertical axes of the ceramic mold, heating temperature of the ceramic mold and heating temperature of reinforcing tungsten carbide particles are built.

The optimum values of frequencies of rotation around the horizontal and vertical axes, heating temperatures of the mold and reinforcing particles, which provide the maximum concentration of tungsten carbide particles in the working area and minimum wear are determined. It is found that the concentration of tungsten carbide particles in the working area and wear are affected by the kinematic components of technological parameters more than temperature ones. For centrifugal reinforcement of inserted drilling bit teeth with 1.0 mm tungsten carbide particles with two mutually perpendicular axes of rotation of the ceramic mold, the following technological parameters are optimal: nx=217 rpm; nz=702 rpm; Tф=270 oC; Ta=208 oC providing a maximum tungsten carbide concentration in the working area and minimum wear.

The research results are useful in the development of technological processes of manufacturing turned parts with the reinforced working area, namely disc and tooth rolling cutters, milling cutters, blade drilling bits, inserted drilling bit teeth.

Author Biographies

Любомир Ярославович Роп’як, Ivano-Frankivsk National Technical University of Oil and Gas 15 Karpatska str., Ivano-Frankivsk, Ukraine, 76019

PhD, Senior Researcher, Associate Professor,

Department of Computer Engineering Manufacturing

Ірина Орестівна Шуляр, Ivano-Frankivsk National Technical University of Oil and Gas 15 Karpatska str., Ivano-Frankivsk, Ukraine, 76019

PhD, Associate Professor

Department of Computer Engineering Manufacturing

Олег Михайлович Богаченко, Ivano-Frankivsk National Technical University of Oil and Gas 15 Karpatska str., Ivano-Frankivsk, Ukraine, 76019

Engineer

Department of Computer Engineering Manufacturing

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Published

2016-02-15

How to Cite

Роп’як, Л. Я., Шуляр, І. О., & Богаченко, О. М. (2016). Influence of technological parameters of centrifugal reinforcement upon quality indicators of parts. Eastern-European Journal of Enterprise Technologies, 1(5(79), 53–62. https://doi.org/10.15587/1729-4061.2016.59850

Issue

Vol. 1 No. 5(79) (2016): Applied physics. Materials Science

Section

Materials Science

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Copyright (c) 2016 Любомир Ярославович Роп’як, Ірина Орестівна Шуляр, Олег Михайлович Богаченко

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