DESIGN IMPROVEMENT OF THE STEP-WEDGE DIES AND EXPERIMENTAL STUDY OF THE FORGING PROCESS OF 45 STEEL BILLETS
Tolkushkin A. Naizabekov A. Panin E. Yordanova R. Shvarts D. Tsyba P. Volokitina I. Rovin S. Esbolat A.
2024University of Chemical Technology and Metallurgy
Journal of Chemical Technology and Metallurgy
2024#59Issue 51209 - 1214 pp.
In this paper, a forging tool of a new design is proposed, which allows to implement shear and alternating strain in the entire volume of the deformed billet with a smaller change in its initial dimensions. To confirm the effectiveness of the proposed new forging tool in obtaining billets and forgings of the plates and slabs type of the required quality, a laboratory experiment was conducted. During the laboratory experiment, the forging of billets made of the steel 45 was carried out in such forging tools as step-wedge dies of two different variants (proposed and previously known) and in step dies. Analysis of the shape change of billets and the evolution of the microstructure of steel after two deformation cycles showed that the use of the step-wedge dies with a wedge protrusion on the upper die and a wedge cavity on the lower die is more promising for forging billets and forgings of the plates and slabs type with a given level of mechanical properties, since it allows to obtain a fine-grained structure with a smaller change in the initial dimensions of the billet.
forging , mechanical properties , microstructure , shear strain , step dies , step-wedge dies
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Rudny Industrial Institute, 38 50 let Oktyabrya St., Rudny, Kazakhstan
Karaganda Industrial University, 30 Republic Ave., Temirtau, Kazakhstan
University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Blvd., Sofia, Bulgaria
Ural Federal University, 19 Mira St., Ekaterinburg, Russian Federation
LLP “Promtech Perspective“, 7/2 Prigorodnaya St., Karaganda, Kazakhstan
Belarusian National Technical University, 65 Prospekt Nezavisimosti, Minsk, Belarus
Rudny Industrial Institute
Karaganda Industrial University
University of Chemical Technology and Metallurgy
Ural Federal University
LLP “Promtech Perspective“
Belarusian National Technical University
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