DETERMINATION OF DETONABLE GAS MIXTURE HEAT FLUXES AT THERMAL DEBURRING

Authors

  • Sergey Plankovskyy Kharkiv National Aerospace University
  • Andrzei Teodorczyk Warsaw University of Technology
  • Olga Shypul Kharkiv National Aerospace University
  • Oleg Tryfonov Kharkiv National Aerospace University
  • Dmytro Brega Kharkiv National Aerospace University

DOI:

https://doi.org/10.14311/AP.2019.59.0162

Keywords:

Thermal deburring, Edge finishing, Heat flux, Shock waves, Detonable gas mixtures

Abstract

Modern technology requires a multitude of precise parts that are a necessity in reliable methods of surface finishing. Energy of detonable gas mixture combustion has been used in manufacturing as a processing source for a long time. One of the most underappreciated methods is thermal deburring; this is caused by certain difficulties in modelling and simulation of this process due to a complex and poorly predictable nature of the combustion. A theoretical approach towards thermal deburring process using the conception of an equivalent chamber is described. Processing of combined experimental and computational data results in a simplified model of thermal deburring in the case with deflagration and combustion with a shock waves formation. The proposed mathematical model was verified by an experimental investigation of the combustion in a shock tube, the difference of compared parameters did not exceed 3%. The heat fluxes at thermal deburring by combustible gas mixtures and their distribution on part surfaces according to the direction of the shock waves propagation were calculated. A relation between the value of the heat flux and shock waves propagation was found with a convincing repeating trend.

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Author Biographies

  • Sergey Plankovskyy, Kharkiv National Aerospace University
    Aircraft manufactoring department. Professor.
  • Andrzei Teodorczyk, Warsaw University of Technology
    Professor.
  • Olga Shypul, Kharkiv National Aerospace University
    Aircraft manufactoring department. Assistant professor.
  • Oleg Tryfonov, Kharkiv National Aerospace University
    Aircraft manufactoring department. Assistant professor.
  • Dmytro Brega, Kharkiv National Aerospace University
    Aircraft manufactoring department. Assistant professor.

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Published

2019-04-30

Issue

Vol. 59 No. 2 (2019)

Section

Articles

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How to Cite

Plankovskyy, S., Teodorczyk, A., Shypul, O., Tryfonov, O., & Brega, D. (2019). DETERMINATION OF DETONABLE GAS MIXTURE HEAT FLUXES AT THERMAL DEBURRING. Acta Polytechnica, 59(2), 162-169. https://doi.org/10.14311/AP.2019.59.0162