Cutting forces when grinding parts from martensite aging steels with highporous abrasive, borazon and diamond wheels

Keywords: grinding, martensitic-aging steels, cutting forces, strength, density, electrocorundum, borazon, diamond

Abstract

Object of research. The article investigates the cutting forces when grinding martensitic-aging steels with highly porous grinding wheels.

The problem to be solved is the regularities of the change in the magnitude of the cutting forces when grinding maraging steels with highly porous CBN wheels.

Main scientific results. The studies were performed on martensiticaging steel H8K18M14. As a result of the experiments, it was found that when grinding wheels made of materials such as electrocorundum, CBN (borazon) and diamond, a significant role is played by the values of the cutting force, which increase during processing.

During the experiment it was found out: the cutting forces Py and Pz in the width of the allowable modes, which are most often used in circular and flat grinding, can reach the following values: with the structure of the wheel 26 come to values from 2.714N to 30.721 and with the structure of the wheel 40 come to values from 2.49N to 28.185N.

Reducing the grain size of the wheel, let’s obtain the effect of increasing the energy costs of the grinding process, by increasing the magnitude of the cutting forces.

If to compare the cutting forces that occur when grinding different wheels, it is possible to note the following: in comparison with electrocorundum wheels when using wheels with KNB cutting forces are reduced by 20-25 %, and when grinding with diamond wheels, the effect of cutting forces is reduced by 25 - 30 %. When grinding with highly porous wheels, the cutting force is 15-20 % higher than when grinding with wheels of normal porosity.

The area of practical use of research results-grinding technology for maraging steels.

Innovative technological product – relationship between processing modes and the magnitude of cutting forces when grinding maraging steels.

Scope of application of an innovative technological product-mechanical engineering technology

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Author Biographies

Vladimir Lebedev, Odessа Polytechnic State University

Department of Structural Materials Technology and Materials

Alla Bespalova, Odessa State Academy of Civil Engineering and Architecture

Department of Construction and Labor Protection

Tatiana Chumachenko, Odessа Polytechnic State University

Department of Structural Materials Technology and Materials

Yevhen Omelchenko, Odessа Polytechnic State University

Department of Materials Science and Structural Materials

Tatiana Nikolaieva, Odessа Polytechnic State University

Department of Materials Science and Structural Materials

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Published
2021-08-31
How to Cite
Lebedev, V., Bespalova, A., Chumachenko, T., Omelchenko, Y., & Nikolaieva, T. (2021). Cutting forces when grinding parts from martensite aging steels with highporous abrasive, borazon and diamond wheels. ScienceRise, (4), 11-16. https://doi.org/10.21303/2313-8416.2021.002041
Section
Innovative technologies in industry