Options of crimping in a container and matrices of a special profile of axysymmetric hollow billets made of C60 steel

Authors

DOI:

https://doi.org/10.20535/2521-1943.2023.7.1.264790

Keywords:

hot, semi-hot and cold crimping, finite element method, hollow workpiece, forces, specific forces, stress, intensity of deformation, die equipment

Abstract

Mathematical models were created using the finite element method and research was carried out on options for hot, semi-hot and cold crimping in a container and matrix of a special profile of axisymmetric hollow blanks made of high-carbon steel with variable wall thickness along the height. A plastic model of metal is used. Before hot and semi-hot crimping, the part of the workpiece was heated at the height to be deformed. The shape and dimensions of the initial blank for crimping were determined by calculation, which ensured the required dimensions of the product. The use of a container and a matrix of a special profile with a deforming surface made with ring protrusions made it possible to obtain a product in one pass for the considered options for crimping due to the reduction of the influence of frictional forces during molding. The rate of deformation was determined to maintain the mode of hot and semi-hot deformation during crimping. The dependence of the axial force on the deforming tool on the movement of the punch and the distribution of specific forces on the contacting surfaces was established. The use of cold pressing leads to an increase in the accuracy of the shape and dimensions of the product, a decrease in energy consumption and metal consumption. The final stress-strained state of the metal, the shape and dimensions of the product are determined. Based on the distribution of deformation intensity, an evaluation of the working of the metal structure by semi-hot and cold plastic deformation was carried out, and the yield point of the metal after crimping was predicted. On the basis of the simulation data, a design of the general appearance of the die equipment for cold crimping was developed.

References

  1. V. P. Romanovskiy, Spravochnik po kholodnoy shtampovke. Leningrad: Mashinostroyeniye, 1979, 520 p.
  2. Forging and stamping: Handbook. Vol. 4: Sheet stamping, A. D. Matveyev Ed. Moscow: Mechanical Engineering, 1987, 544 p.
  3. Yu. A. Averkiev and A. Yu. Averkiev, Kholodnaya shtampovka. Moscow: Mashinostroyeniye, 1989, 304 p.
  4. Ye. A. Popov, V. G. Kovalev and I. N. Shubin, Tekhnologiya i avtomatizatsiya listovoy shtampovki. Moscow: MGTU, 2000, 480 p.
  5. E. A. Sosenushkin, E. A. Yanovskaya and D. V. Khachatryan, “Theoretical and technological aspects of crimping in a conical die”, Izvestiya MGTU MAMI, vol. 2, no. 1 (15), pp. 139–145, 2013.
  6. V. A. Krivoshein, “Sravnitel'nyi analiz teoreticheskikh i eksperimental'nykh dannykh pri issledovanii protsessa obzhima v matritse s kol'tsevymi kanavkami”, Izvestiya vuzov: Mashinostroyeniye, no. 5, pp. 10–12, 2014.
  7. O. V. Kaliuzhnyi, “Open and closed crimping of tubular blanks with different heights in a matrix of a special profile”, Processing of materials by pressure, no. 2 (39), pp. 144–149, 2014. Available: http://www.dgma.donetsk.ua/science_public/omd/omd_2(39)_2014/article/26.pdf.
  8. O. V. Kaliuzhnyi and V. L. Kaliuzhnyi, Intensification of shaping processes of cold sheet stamping. Kyiv: Sіk Group Ukraine LLC, 2015, 292 p.
  9. N. I. Shlyapugin, “Features of modeling the process of crimping and expansion of tubular blanks in DEFORM_2d”, Proceedings of the Samara Scientific Center of the Russian Academy of Sciences, vol. 16, pp. 240–244, 2014.
  10. V. Kalijuznyi and O. Jarmolenko, “Intensification of the process of the cold envelope of humidified semi-fabricates for the receiving products with a changing window installation”, Mech. Adv. Tech., no. 1(85), pp. 111–117, 2019. DOI: https://doi.org/10.20535/2521-1943.2019.85.164271.
  11. V. Kaliuzhnyi, O. Kaliuzhnyi and K. Marchuk, “Calculation of the size of a hollow workpiece with a thin wall with interchangeabe thickness and determination of the parameters of its crimping in a matrix with a cone-cylindrical deforming surface”, Mech. Adv. Technol., no. 3(90), pp. 106–112, 2020. DOI: https://doi.org/10.20535/2521-1943.2020.0.219526.
  12. Forging and stamping: Handbook. Vol. 2: Hot stamping, E. I. Semenov Ed. Moscow: Mechanical Engineering, 1986, 592 p.
  13. V. A. Evstratov, Osnovy tehnologii vydavlivanija i konstruirovanija shtampov. Kharkov: Vyshcha shkola, 1987, 142 p.

Downloads

Published

2023-04-25

How to Cite

[1]
V. Kaliuzhnyi, V. Levchenko, O. Kaliuzhnyi, and S. Sytnyk, “Options of crimping in a container and matrices of a special profile of axysymmetric hollow billets made of C60 steel”, Mech. Adv. Technol., vol. 7, no. 1 (97), pp. 68–74, Apr. 2023.

Issue

Vol. 7 No. 1 (97) (2023)

Section

Up-to-date machines and the technologies of mechanical engineering

License

Copyright (c) 2023 Володимир Калюжний, Володимир Левченко, Олександр Калюжний, Станіслав Ситник

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The ownership of copyright remains with the Authors.
 
Authors may use their own material in other publications provided that the Journal is acknowledged as the original place of publication and National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” as the Publisher.

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under CC BY 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work