Assessment of deformations and hardness of cams and rollers working surfaces of die-cutting presses

Keywords

the drive mechanism, a pressure plate, the flat die-cutting press, the deformation, hardness, a cam, the law of periodic motion.

Cite as

Shakhbazov Ya. O., Shyrokov V. V., Cheterbukh O. Yu., and Ratska N. B. Assessment of deformations and hardness of cams and rollers working surfaces of die-cutting presses. Physicochemical Mechanics of Materials. 2025. 61(5), 066-071.

https://doi.org/10.15407/pcmm2025.05.066

Abstract

A diagram is proposed and the principle of operation of the drive mechanism of the pressure plate of a flat die-cutting press is described. The deformations and the required hardness of the working contact surfaces of the executive elements of the structure – cams and rollers – are analytically investigated. The coefficients, which relate the required hardness of the contact working surfaces of parts and the strength of the material, are calculated. Six laws of periodic motion of the corresponding executive link are used in the research, in particular according to the law of periodic motion “Sinusoidal acceleration (symmetrical tachogram)”, the smallest values of deformations (Δ = 6.13×10^–6 m) and hardness (HB = 1582.1 MPa) of the cams and rollers are established.

References

1. M. V. Chernets, Yu. Yu. Skvarok, M. Opelyak, and B. I. Kindratskyi, Research of Mechanisms and Tribotechnical Systems [in Ukrainian], Drogobych, Kolo (2003).
2. V. T. Pavlyshche, Fundamentals of Design and Calculation of Machine Parts [in Ukrainian], Afisha, Lviv (2003).
3. A. G. Fesenko, Surface Hardening Methods in the Manufacturing Process of Machine Parts [in Ukrainian], Oles Honchar Dnipro National University Publ. House, Dnipro (2015).
4. O. V. Zakalov, Basis of Friction and Wear in Machines [in Ukrainian], Ternopil Ivan Puluj National Technical University, Ternopil (2011).
5. V. D. Holovnya, Machine Parts [in Ukrainian], Zhytomyr State Technical University, Zhytomyr (2016).
6. G. S. Pysarenko, O. L. Kvitka, and Ye. S. Umanskyi, Materials Resistance [in Ukrainian], Vyshcha Skola, Kyiv (2004).
7. M. P. Markovets, Determination of Mechanical Properties of Metals by Hardness [in Russian], Mashinostroyeniye, Moscow (1979).
8. O. Yu. Cheterbukh, and Ya. O. Shabkhazov, Punching Machine Press [in Ukrainian], Patent of Ukraine No. 151852B26F 1/40 (2006.01), Publ. 21.09.2022; Bull. No. 38.
9. V. V. Vlakh, Влах В. В. Improvement of the Punching Press using the Combined Pressure Plate Drive Mechanism [in Ukrainian], Dissertation, Lviv, Ukraine, 2018.
10. O. M. Lolyudov, Mechanics of Printing and Packaging Machines [in Ukrainian], Ukrainian Academy of Printing, Lviv (2005).
11. V. V. Shyrokov, O. Y. Cheterbukh, K. B. Vasyliv, and O. V. Melnykov, “Evaluation of residual stresses during mechanical treatment of machine parts,” Mater. Sci., 58, Is. 1, 686-692 (2023). https://doi.org/10.1007/s11003-023-00717-y