Stamping a medium – sized cartridge blank from low – carbon steel

Authors

  • Volodymyr Kalyuzhniy Igor Sikorsky Kyiv Polytechnic Institute, Ukraine https://orcid.org/0000-0002-4904-8879
  • Oleksandr Yarmolenko Igor Sikorsky Kyiv Polytechnic Institute, Ukraine
  • Kostyantyn Marchuk Igor Sikorsky Kyiv Polytechnic Institute, Ukraine

DOI:

https://doi.org/10.20535/2521-1943.2021.5.1.234466

Keywords:

cartridge blank; finite element method; semi-finished product; reverse extrusion; thinning drawing; crimping, force; normal stresses; deformation intensity.

Abstract

The work is devoted to obtaining a medium – sized cartridge blank from low-carbon steel. The sequence of punching transitions includes a hot back- extrusion operation, two cold draw – thinning operations, and a cold crimp operation. Modeling using the finite element method established: efforts and specific forces during operations, thermal effect during shaping, shape and size of semi – finished products with distributions of strain intensity. An elastoplastic metal model was used, which made it possible to reveal the forces of extracting the tool from deformed semifinished products and the forces of removing semifinished products from the matrix. A hollow semifinished product with the required dimensions of a protrusion on the bottom part from the side of the cavity and a protrusion on the end for forming a flange is obtained by reverse extrusion. The possibility of carrying out the first drawing operation with thinning through three sequentially located matrixes is shown. After this operation, annealing of the semi-finished product is required to restore plasticity. In the second operation of drawing with thinning and additional stamping of the bottom part, the final dimensions of this part from the side of the cavity and the shaping of the flange on the lateral surface of the semi-finished product are provided with the creation of a macrostructure to ensure the required operational properties. The shape and dimensions of the wall of the semi-finished product after the second drawing, the distribution of the intensity of deformations in it are determined from the condition of reaching the final dimensions and mechanical properties of the cartridge blank at the last crimping operation. For this, the deformations obtained as a result of the second drawing are taken into account when modeling the crimp. The proposed technology for stamping a blank of a sleeve can be implemented on a universal press – forging equipment, has a high productivity and minimizes mechanical processing.

References

  1. Forging and stamping: Handbook, E. I. Sеmenov (ed.). Vol. 2: Hot stamping. Moscow: Mechanical Engineering, 1986, 592 p.
  2. O. V. Kalyuzhnyy and V. L. Kalyuzhnyy, Intensyfikatsiya formoutvoryuyuchykh protsesiv kholodnoho lystovoho shtampuvannya. Kyiv: TOV "Sik Hrup Ukrayina", 2015, 292 p.
  3. O. V. Kaluzhny, V. L. Kaluzhny and S. S. Sokolovska, "Vyznachennya parametriv vytyahuvannya z potonshennyam zprofilʹovanym puansonom porozhnystykh zahotovok pislya zvorotnoho vydavlyuvannya", Visnyk NTU "KhPI". Seriya: Innovatsiyni tekhnolohiyi ta obladnannya obrobky materialiv u mashynobuduvanni ta metalurhiyi, no. 36 (1258), pp. 21-28, 2017.
  4. 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”, Mechanics and Advanced Technologies, no. 1(85), pp. 111-117, 2019. DOI: https://doi.org/10.20535/2521-1943.2019.85.164271.
  5. V. N. Danchenko, A. A. Milenin, V. I. Kuzmenko and V. A. Grinkevich, Komp'yuternoye modelirovaniye protsessov obrabotki metallov davleniyem. Chislennyye metody. Dnepropetrovsk: Sistemnyye tekhnologii, 2005, 448 p.
  6. I. S. Aliev, O. E. Markov, Ya. G. Zhbankov and S. A. Bliznyuk, "Vliyaniye operatsii vyvorota pokovki konicheskimi plitami na raspredeleniye deformatsiy", Obrabotka materialov davleniyem, no. 3 (24), pp. 64-68, 2010.
  7. S. A. Snitko and V. L. Kalyuzhny, "Konechno-elementnoye modelirovaniye mnogoperekhodnogo protsessa deformirovaniya zagotovok pri proizvodstve zheleznodorozhnykh koles", Visnyk NTUU "KPI". Seriya Mashynobuduvannya, no. 62, pp. 106-111, 2011.
  8. I. S. Aliev, Ya. G. Zhbankov, L. V. Tagan and A. A. Shvets, "Upravleniye napryazhenno-deformirovannym sostoyaniyem zagotovki v protsessakh kovki krupnykh pokovok", Obrabotka materialov davleniyem, no. 1 (34), pp. 50-57, 2013.
  9. V. L. Kalyuzhnyi, L. I. Alieva, D. A. Kartamyshev and I. G. Savchinskii, “Simulation of Cold Extrusion of Hollow Parts”, Metallurgist, vol. 61, no. 5-6, pp. 359-365, 2017. DOI: https://doi.org/10.1007/s11015-017-0501-1.
    |
  10. V. L. Kalyuzhny, L. I. Alieva, I. S. Aliev and V. N. Gornostay, "Goryachaya ob"yemnaya shtampovka polykh izdeliy iz vysokoprochnogo alyuminiyevogo splava s zadannymi mekhanicheskimi svoystvami", Zagotovitel'nyye proizvodstva v mashinostroyenii, vol. 16, no. 12, pp. 543-547, 2018.
  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”, Mechanics and Advanced Technologies, no. 3(90), pp. 106-112, 2020. DOI: https://doi.org/10.20535/2521-1943.2020.0.219526.
  12. A. V. Tretyakov and V. I. Zyuzin, Mekhanicheskiye svoystva metallov i splavov pri obrabotke davleniyem. Moscow: Metallurgiya, 1973, 224 p.

Downloads

Published

2021-06-23

How to Cite

[1]
V. Kalyuzhniy, . O. Yarmolenko, and K. Marchuk, “Stamping a medium – sized cartridge blank from low – carbon steel”, Mech. Adv. Technol., vol. 5, no. 1, pp. 113–121, Jun. 2021.

Issue

Vol. 5 No. 1 (2021)

Section

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

License

Copyright (c) 2021 Володимир Калюжний, Олександр Ярмоленко, Костянтин Марчук

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