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Pipe Production
ArticleName Features of computer simulation of the joint thermal field of the plug and shell during piercing of extra-thick-walled hollow billets
DOI 10.17580/chm.2023.05.07
ArticleAuthor N. M. Vavilkin, A. S. Budnikov, N. V. Kholodova

National University of Science and Technology (NUST) MISiS, Moscow, Russia:

N. M. Vavilkin, Dr. Eng., Prof., Dept. of Metal Forming
A. S. Budnikov, Cand. Eng., Associate Prof., Dept. of Metal Forming, e-mail:


Vyksa branch of NUST MISiS, Vyksa, Russia:
N. V. Kholodova, Senior Lecturer, Dept. of Technology and Equipment for Metal Forming


The piercing plug is one of the most important elements of a technological tool operating under conditions of high force and significant heating, especially in the process of piercing extra-thickwalled shells with a D/S < 5.5 ratio. The results of the joint solution of the thermal problem of the plug and shell using the QForm 3D program, operating on the basis of finite element and control volumes methods have been presented. Based on the simulation results, the temperature field of the non-watercooled plug and shell was considered in the process of modeling the piercing of a billet of 2 m long and 250 mm in diameter into a shell of 270 mm in diameter with a wall thickness of 70 mm under conditions of a mini 70–270 pipe rolling plant. According to the calculations, the piercing process proceeded for 13 s, which practically corresponds to the experimental estimates of the machine time, while there is a significant inhomogeneity of the temperature field of the shell and plug both along the length and in the cross section. The temperature of the inner surface of the shell, which is in direct contact with the plug, changes dramatically. The temperature of the inner part of the shell at the front end is 800 °C, the middle and rear ends is 1200 °C. This behaviour of the thermal state of the shell is associated with the plug state. When piercing a long billet, the temperature of the mandrel toe increases to 1200 °C, and its spherical part to 1120 °C. These values are critical and show that in the absence of water cooling, the mandrel operates in extremely difficult conditions, which significantly reduces its durability.

keywords Mandrel, mill, helical piercing, sleeve, computer simulation, thermal state, resistance

1. Vavilkin N. М., Bodrov D. V. Features of the thermal state of piercing plugs with a developed cooling cavity. Proizvodstvo prokata. 2011. No. 4. pp. 14–17.
2. Vavilkin N. М., Bukhmirov V. V. Piercing plug. Moscow : MISiS, 2000. 128 p.
3. Amirgaliyev Y., Wójcik W., Ospanova T., Jetpisov K. 3D modelling of distribution of temperature field in the rolling mill. Journal of Ecological Engineering. 2017. Vol. 18. No. 6. pp. 1–7.
4. Cao Q., Hua L., Qian D. Finite element analysis of deformation characteristics in cold helical rolling of bearing steel-balls. Journal of Central South University. 2015. Vol. 22. No. 4. pp. 1175–1183. DOI: 10.1007/s11771-015-2631-6
5. Rout M., Pal S. K., Singh S. B. Finite element simulation of a cross rolling process. Journal of Manufacturing Processes. 2016. Vol. 24, Iss. 1. pp. 283–292.
6. Wang F. X., Du F. S., Yu H. The thermal-mechanical coupled fem analysis on 3-roll continual tube rolling PQF deformation process. Advanced Materials Research. 2011. Vol. 193. pp. 1670–1674. DOI: 10.4028/
7. Gao J. F., Li Q., Zhao W. Thermal stress analysis for local heating variable cross section roll forming. Advanced Materials Research. 2013. Vol. 683. pp. 599–603. DOI: 10.4028/
8. Domazet Ž., Lukša F. Influence of rolling temperature on fatigue life of calibrated rolls. Advanced Materials Research. 2013. Vol. 742. pp. 482–487. DOI: 10.4028/
9. Vlasov А. V., Stebunov S. А., Evsyukov S. А., Biba N. V., Shishkov А. А. Finite-element modeling of technological processes of pressing and die forging : Textbook. Edited by A. V. Vlasov. Moscow : Izdatelstvo MGTU imeni N. E. Baumana, 2019. 383 p.
10. Vorobyev А. А., Krutko А. А., Badamshin А. М. Modeling heat treatment processes in the QFORM HEAT TREATMENT module. Izvestiya Peterburgskogo universiteta putey soobshcheniya. 2022. Vol. 19. No. 4. pp. 727–735.
11. Mashekov S. A., Absadykov B. N., Mashekova A. S. Investigation of the kinematics of rolling ribs and pipes on a continuous radialshifting mill of a new construction. News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences. 2018. Vol. 3. No. 430. pp. 98–109.
12. Yusupov V. S., Romantsev B. А., Skripalenko М. М., Andreev V. А., Erokhin А. V., Myshechkin А. А., Kasumov А. E. Simulation of features of the stress-strain state of billets in helical rolling processes. Stal. 2021. No. 6. pp. 17–19.
13. Samusev S. V., Kondrushin A. V., Fadeev V. A. Deformation during continuous forming of longitudinal welded pipes. Steel in Translation. 2022. Vol. 52, Iss. 1. pp. 39–44.
14. Skripalenko M. M., Karpov B. V., Rogachev S. O. et al. Simulation of the kinematic condition of radial shear rolling and estimation of its influence on a titanium billet microstructure. Materials. 2022. Vol. 15, Iss. 22. 7980.
15. Skripalenko M. M., Romantsev B. A., Galkin S. P., Kaputkina L. M., Skripalenko M. N., Danilin A. V., Fadeev V. A., Rogachev S. O. Сreation of 3D model of stainless-steel billet’s grain after three-high screw rolling. Materials. 2022. Vol. 15, Iss. 3. 995.
16. Deng G. Y., Zhu H. T., Tieu A. K., Zhu Q. et al. Numerical evaluation of a high speed steel work roll during hot strip rolling process. Material Science Forum. 2017. Vol. 904. pp. 55–60. DOI: 10.4028/
17. Nattarawee Siripath, Surasak Suranuntchai, Sedthawatt Sucharitpwatskul. Finite element modeling of upper ball joint in a two-step hot forging process. Advances in Materials and Technologies. 2022. Vol. 934. pp. 95–102. DOI: 10.4028/p-iziu0l
18. Kriskovich S. М., Romanenko V. P., Vavilkin N. М., Fortunatov А. N. Features of the stress-strain state of screw piercing of extra-thick-walled hollow billets for mechanical engineering. Chernye Metally. 2022. No. 6. pp. 55–59.
19. Vavilkin N. М., Kriskovich S. М. Features of the stress state of screw piercing of especially thickwalled hollow billets for mechanical engineering. Chernye Metally. 2021. No. 10. pp. 44–48.
20. Skripalenko М. М., Khyui Ch. B., Romantsev B. А., Galkin S. P., Samusev S. V. Study of features of the stress-strain state of billets under different schemes of helical rolling using computer simulation. Stal. 2019. No. 2. pp. 35–39.
21. Aleshchenko A. S., Quang N. Studying the wear resistance of the mandrels of a two-high screw rolling mill. Metallurgist. 2022. Vol. 66, Iss. 5-6. pp. 650–656.

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