MODELING OF HIGH-SPEED EXTRUSION PROCESS FOR BIMETAL MILLING PICKS OF ROAD MILLING MACHINES IN DEFORM-3D SOFTWARE ENVIRONMENT

Milling picks for road milling machine are considered as equipment which must meet the most stringent requirements associated with fatigue and static strength. Therefore, majority of modern milling picks are manufactured while using high-quality steels alloyed with manganese and chromium. In order to extend service life of the picks for the road milling machine they are supplemented with carbide inserts soldered to the head. In this connection, an application of high-speed hot extrusion technology which has already proved itself in a number of investigations as a highly efficient technology for obtaining precise billets for tools with increased mechanical properties, manufacture of road milling picks, is a very promising direction of the research. The aim of the research is to create a computer model for high-speed hot extrusion in order to intensify a process pertaining to development of technology for manufacturing bimetal picks for road milling machines and to compare the obtained results of modeling and experimental studies. A comparative analysis of the plastic flow in real and model samples has shown that the obtained models provide a qualitative and reliable picture of the plastic flow in the process of highspeed hot extrusion. Modeling in DEFORM-3D eliminates complicated calculations and significantly reduces a number of experimental studies while developing new technological processes.

1. Kachanov I. V., Isaevich L. A. (2002) High-speed Hot Extrusion of Core Products. Minsk, Tekhnoprint. 327 (in Russian).

2. Zdor G. N., Isaevich L. A., Kachanov I. V., (2010) Technology of High-Speed Material Deformation. Minsk, Belarusian National Technical University. 456 (in Russian).

3. Kachanov I. V., Zdor G. N., Isaevich L. A., Shary V. N. (2011) High-Speed Hot Extrusion of Core Products with Butt end Cladding. Minsk, Belarusian National Technical University. 198 (in Russian).

4. Kapranov I. V., Osinnykh V. Ya. (1977) Peculiar Features of High-Speed Hot Extrusion of High Precision Forming Tool. Povyshenie Kachestva i Effektivnosti Izgotovleniia Tekhnologicheskoi Osnastki Metodami Plasticheskogo Deformirovaniia: Sb. Tezisov Vsesoiuz. Nauch.-Tekh. Konf. [Improvement of Quality and Efficiency in Manufacturing of Machine-Tool Attachments While Using Deformation Methods. Book of Abstracts of All-Union Scientific Research Conference]. Tallinn, 125–129 (in Russian).

5. Ivanov K. M., Liasnikov A. V., Gumeniuk Iu. I, Matveev S. A. (2001) Investigation of Technological Capabilities for Cross-Sectional Extrusion Using Finite Element Method. Metalloobrabotka, 2, 24–27 (in Russian).

6. Ivanov K. M., Shevchenko V. S., Yurgenson E. E. (2000) Finite Element Method for Technological Tasks of Metal Forming Processes. Saint-Petersburg, Institute of Machine Building. 217 (in Russian).

7. Sogrishin Yu. P., Grishin L. G., Vorobiov V. M. (1978) Die Stamping Using High-Speed Hammers. Moscow, Maschinostroenie Publ. 164 (in Russian).

8. Rubchenya A. A., Denisik A. A., Gerasimenko A. A. (2017) Technology of Making Cutters for Road Machines. Sovremennye Napravleniya v Proektirovanii, Stroitel'stve, Remonte i Soderzhanii Transportnykh Sooruzhenii: Materialy I Mezhdunar. Stud. Konf. [Modern Directions in Designing, Construction, Repair and Maintenance of Transport Facilities: Proceedings of the I International Student Conference]. Minsk, Belarusian National Technical University, 172–177 (in Russian).

9. Kachanov I. V., Shary V. N., Roubchenya A. A., Vlasov V. V. (2016) Road Milling Picks for Road and Mining Machines and the Method of its Manufacture. Patent Republic of Belarus No 21535 (in Russian).

10. Roubchenya A. A. (2016) Modeling of Plastic Flow of Metal with High-Speed Hot Extrusion of Road Milling Picks. Minsk, Belarusian Scientific Research Institute “Transtekhnika”. 286 (in Russian).