THE EFFECT OF ROLLING MODES ON THE RELATIVE BEARING LENGTH OF THE ELECTRIC SPARK SURFACE COATINGS
Rubrics: MECHANICAL ENGINEERING
Authors:
1.
Stary Oskol Technological Institute of NUST MISIS
(Department of Technology and Equipment in Metallurgy and Mechanical Engineering named after V.B. Krakht, Postgraduate Student)
graduate student
Stary Oskol, Belgorod, Russian Federation
graduate student
Stary Oskol, Belgorod, Russian Federation
2.
Starooskolsky Technological Institute (branch) of MISIS
(Department of Technology and Equipment in Metallurgy and Mechanical Engineering named after V.B. Krakht, Associate Professor)
employee
Stariy Oskol, Belgorod, Russian Federation
employee
Stariy Oskol, Belgorod, Russian Federation
3.
Stary Oskol Technological Institute named after A.A. Ugarov (branch) of the National Research Technological University "MISiS"
(Department of Technology and Equipment in Metallurgy and Mechanical Engineering named after V.B. Krakht, Associate Professor)
employee
Stariy Oskol, Belgorod, Russian Federation
employee
Stariy Oskol, Belgorod, Russian Federation
Type:
Article
Pages:
from 13
to 23
Status:
Published
Received:
22.11.2025
Accepted:
09.12.2025
Published:
27.02.2026
Subject area:
VAK Russia 2.5.6
UDC 621.9.048.4
Russian Library and Bibliographic Classification 345
UDC 621.9.048.4
Russian Library and Bibliographic Classification 345
Language:
Russian
Keywords:
alloying, deformation, rolling, roughness, surface, length, microhardness, thickness, profilogram, Abbott-Firestone curve
Abstract:
The study objective is to determine the effect of rolling modes on the formation of the relative bearing length of the surface of hard electric spark facing. The task to which the paper is devoted is to study the effect of modes of surface plastic deformation by rolling on the microgeometry of the surface: roughness and relative bearing length of the profile. Research methods. Theoretical analysis of literary sources on the topic of surface plastic deformation of part surfaces. Field experiments on rolling hard electric spark facings, followed by measuring the surface roughness, relative bearing length of the profile, and examining the microgeometry of the part surface using profilograms. The novelty of the work is in the fact that the modes of surface plastic deformation by rolling hard electric spark facings are developed. The practical significance is to ensure the possibility of rolling hard electric spark facings while reducing surface roughness and increasing the relative bearing length of the profile. Study results. As a result of the theoretical analysis, the method of surface plastic deformation was determined. Based on the results of measuring surface roughness, relative bearing length of the profile, microhardness and thickness of electric spark coatings after rolling, modes were determined that reduce roughness and increase the relative bearing length of the profile. Conclusions: in order to improve the performance of parts, it is necessary to form a certain microgeometry of the surface. Along with surface hardening by forming hard electric spark facing, it is necessary to ensure a low surface roughness and increase the relative bearing length of the profile. Special attention is paid to the study of modes of surface plastic deformation of hard electric spark coatings. An assumption is made about the mechanism of rolling hard electric spark coatings. The values of the surface microgeometry parameters and their photographs are presented. The values of surface roughness, relative bearing length of the surface profile, microhardness, and coating thickness are presented.
The study objective is to determine the effect of rolling modes on the formation of the relative bearing length of the surface of hard electric spark facing. The task to which the paper is devoted is to study the effect of modes of surface plastic deformation by rolling on the microgeometry of the surface: roughness and relative bearing length of the profile. Research methods. Theoretical analysis of literary sources on the topic of surface plastic deformation of part surfaces. Field experiments on rolling hard electric spark facings, followed by measuring the surface roughness, relative bearing length of the profile, and examining the microgeometry of the part surface using profilograms. The novelty of the work is in the fact that the modes of surface plastic deformation by rolling hard electric spark facings are developed. The practical significance is to ensure the possibility of rolling hard electric spark facings while reducing surface roughness and increasing the relative bearing length of the profile. Study results. As a result of the theoretical analysis, the method of surface plastic deformation was determined. Based on the results of measuring surface roughness, relative bearing length of the profile, microhardness and thickness of electric spark coatings after rolling, modes were determined that reduce roughness and increase the relative bearing length of the profile. Conclusions: in order to improve the performance of parts, it is necessary to form a certain microgeometry of the surface. Along with surface hardening by forming hard electric spark facing, it is necessary to ensure a low surface roughness and increase the relative bearing length of the profile. Special attention is paid to the study of modes of surface plastic deformation of hard electric spark coatings. An assumption is made about the mechanism of rolling hard electric spark coatings. The values of the surface microgeometry parameters and their photographs are presented. The values of surface roughness, relative bearing length of the surface profile, microhardness, and coating thickness are presented.
Keywords:
alloying, deformation, rolling, roughness, surface, length, microhardness, thickness, profilogram, Abbott-Firestone curve
alloying, deformation, rolling, roughness, surface, length, microhardness, thickness, profilogram, Abbott-Firestone curve
1. GOST 18296-72. Surface Working. Terms and Definitions. Moscow: Izdatelstvo Standardov; 1973.
2. Kochetkov AV, Barats FYa, Shashkov IG. Review of studies of fine-hardening treatment by surface plastic deformation. Naukovedenie. 2013;4(17):37.
3. Smelyansky VM. Mechanics of hardening of parts by surface plastic deformation. Moscow: Mashinostroenie; 2002.
4. Odintsov LG. Hardening and finishing of parts by surface plastic deformation: handbook. Moscow: Mashinostroenie; 1987.
5. Zhuldybin AA, Vladimirov AA, Shapovalov AI. Prospects for the use of electric spark alloying on the working surfaces of locomotive bogie parts. Transport Engineering. 2025;9:28-37. DOIhttps://doi.org/10.30987/2782-5957-2025-9-28-37.
