AUTOMATIC CONTROL OF TEMPERATURE AND POWER CONDITIONS DURING ROUGH GRINDING OF SLABS

Authors

DOI:

https://doi.org/10.20998/2078-7405.2021.94.10

Keywords:

rough grinding, slab grinding temperature control, aperiodic link

Abstract

The production of high-quality rolled products (slabs), the formation of its surface phase-structural composition, texture, stress state during rough grinding depends on the temperature in the area of contact between the wheel and the slab. During processing, due to geometric errors of the rolled surface, as well as due to local changes in hardness, periodic fluctuations of the instantaneous depth of cut occur, which can be determined indirectly by controlling one of the technological parameters, for example, the power spent on grinding, with subsequent recalculation it to online temperature values. The grinding temperature is described as a control object in the form of an aperiodic link. Computer simulation has confirmed the efficiency of the system for maintaining the specified temperature of slab grinding under various operating conditions that simulate the situations of real production.

Author Biographies

Valentin Tikhenko, Odessa Polytechnic State University

Doctor of Technical Sciences, Professor Chairs of metal-cutting machine tools, metrology and certification,

Odessa Polytechnic State University, Odessa, Ukraine

Vladimir Lebedev, Odessa Polytechnic State University

Doctor of Technical Sciences, Professor Chairs of metal-cutting machine tools, metrology and certification,

Odessa Polytechnic State University, Odessa, Ukraine

Tatiana Chumachenko, Odessa Polytechnic State University

Candidate of Technical Sciences, Associate Professor, Chairs technology of structural materials and materials science, Odessa Polytechnic State University, Odessa, Ukraine

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Published

2021-06-16

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Section

Mechanical processing of materials, the theory of cutting materials, mathematical and computer simulation of machining p