Chumachenko Tetiana

Scopus Publications

Increasing the Durability of Cutting Tools Through Additional Low-Temperature Heat Treatment after Sharpening
Tatiana Chumachenko, Alla Bespalova, Oleksij Knush
Materials Science Forum, 2025
The tool stability and its wear are important factors that determine the patterns of change in systematic and random errors during processing. The higher the tool stability and, consequently, the lower the wear intensity over time, the longer the period of time the part error does not exceed the tolerance field and the less often it is necessary to re-adjust the equipment and re-grind the tool. Cold treatment of a blade tool to cryogenic temperatures after sharpening can make it possible to significantly increase its stability. The purpose of processing hardened steel at a temperature below room temperature is to remove residual austenite from the structure and subsequently affects the properties of the steel. In the martensitic transformation interval, between the temperatures and, ordinary room temperature is a stop that interrupts the course of transformations during cooling. Thus, cooling below zero is a natural part of the steel hardening process.
Increasing the Continuous Operation Time of the Diamond Cutting Disk When Using Various Cooling Media
Tetiana Chumachenko, Alla Bespalova, Olha Dashkovska, Oleksij Knush, Tatiana Nikolaieva
Lecture Notes in Mechanical Engineering, 2025
Analysis of Microcutting of VT8 Titanium Alloy and 12Cr2Ni4A Steel During Grinding with Cubic Boron Nitride
Tatiana Chumachenko, Oleksandr Derevianchenko, Tatiana Nikolaieva, Yevhen Omelchenko, Alla Bespalova
Lecture Notes in Mechanical Engineering, 2023
Burns of Tempering While Grinding Hardened Steels
Vladimir Lebedev, Tatiana Chumachenko, Nataliya Klymenko, Olga Frolenkova
Lecture Notes in Mechanical Engineering, 2022
Methods for Measuring Grinding Temperatures
Ala Bezpalova, Vladimir Lebedev, Tatiana Chumachenko, Olga Frolenkova, Nataliya Klymenko
Lecture Notes in Mechanical Engineering, 2022
An Analytical and Experimental Study of the Grinding Process of Thermal Barrier Coatings with Highly Porous Wheels of Cubic Boron Nitride
Vladimir Lebedev, Olga Frolenkova, Tatiana Chumachenko, Alla Bespalova, Olha Dashkovska
Lecture Notes in Mechanical Engineering, 2022
ANALYSIS OF CUTTING FORCES DURING GRINDING OF TITANIUM ALLOY AND CORROSION-RESISTANT STEEL BY DIAMOND, ELECTROCORUNDUM AND CUBIC BORINE NITRID WHEELS
Vladimir Lebedev, Tatiana Chumachenko, Alla Bespalova, Tatiana Nikolaeva, Yevhen Omelchenko
Technology Audit and Production Reserves, 2021
The object of research is the process of circular and surface grinding of titanium alloy and corrosion-resistant steel, namely, the cutting forces arising from mechanical processing. One of the most problematic areas in work is the selection of the required grinding modes, material and grinding wheel grain size. In the course of the experiment, we used samples of VT8 titanium alloy and 12Х18N9T steel, on which the grinding process was studied with wheels made of various materials (electrocorundum, cubic boron nitride (CBN), diamond). The values of the cutting forces Py and Pz were obtained in the latitude of permissible modes, which are most often used in circular and flat grinding, and can reach maximum values, respectively, Py=27 N, Pz=15.5 N. The data were obtained at a low wheel speed from electrocorundum, about 15 m/s and grain size 8. By reducing the grain size of the wheel, we get the effect of increasing the energy consumption of the grinding process, due to the increase in the values of the cutting forces. If we compare the cutting forces arising from grinding with different wheels, then the following can be noted. Compared to electrocorundum wheels, when using CBN wheels, the cutting forces are reduced by 20–25 %, and when grinding with diamond wheels (despite the high wear of the diamond wheel), the effect of cutting forces is reduced by 25–30 %. This is due to the fact that cutting conditions are the most favorable for diamond and CBN grains, which makes it possible to use more intense cutting conditions. The results of the study allow predicting the performance of the grinding wheel, reducing the energy consumption of production, and also adjusting the processing mode of the part to obtain the necessary quality indicators of the surface layer and the geometric dimensions of the part.
Penetration Depth of the Critical Temperature into the Workpiece Material During Grinding
Vladimir Lebedev, Tatiana Chumachenko, Nataliya Klymenko, Olga Frolenkova, Serhii Yevtifieiev
Lecture Notes in Mechanical Engineering, 2021
Experimental and analytical study of CBN grinding of welded martensitic aging steel
Vladimir Lebedev, Vladimir Tonkonogyi, Tatiana Chumachenko, Nataliya Klymenko, Olga Frolenkova
Lecture Notes in Mechanical Engineering, 2020
Experimental study of the process of borazon grinding of thermal barrier coating of zro
Vladimir Lebedev, Volodymyr Tonkonogyi, Vladyslav Vaysman, Olga Frolenkova, Tatiana Chumachenko
Lecture Notes in Mechanical Engineering, 2020
Mathematical modeling of the process of the interaction of the cutting diamond disk with the environment
Ala Bezpalova, Vladimir Lebedev, Yuri Morozov, Tatiana Chumachenko, Nataliya Klymenko
Lecture Notes in Mechanical Engineering, 2020
Investigation and analysis of the possibility of diffusionless phase transformations in the surface layer of a part under the action of grinding temperatures
Ala Bezpalova, Vladimir Lebedev, Natalia Klimenko, Tatiana Chumachenko, Inga Uryadnikova
Eastern European Journal of Enterprise Technologies, 2018
Martensite transformations in the surface layer at grinding of parts of hardened steels
Vladimir Lebedev, Natalia Klimenko, Inga Uryadnikova, Tatiana Chumachenko, Alexander Ovcharenko
Eastern European Journal of Enterprise Technologies, 2017
Definition of the amount of heat released during metal cutting by abrasive grain and the contact temperature of the ground surface
Vladimir Lebedev, Natalia Klimenko, Tatiana Chumachenko, Inga Uryadnikova, Alexander Ovcharenko
Eastern European Journal of Enterprise Technologies, 2016

Chumachenko Tetiana

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Scopus Publications