Innovative technology for stamping a small-sized sleeve blank
DOI:
https://doi.org/10.20535/2521-1943.2021.5.3.249679Keywords:
sleeve blank, finite element method, semi-finished product, reverse extrusion, thinning drawing, crimping, force, normal stresses, deformation intensity, die toolingAbstract
The work is devoted to the development of an innovative technology of stamping from low-carbon steel for small-size liner blanks. The sequence of punching transitions includes a cold back extrusion operation, two cold drawing operations with thinning, and a cold crimping operation. Simulation with the use of the finite element method established the forces and specific forces during operations, the thermal effect during shaping, the shape and size of semi-finished products with distributions of the intensity of deformations. An elastoplastic metal model was used, which made it possible to reveal the deformation forces, tool extraction from deformed semifinished products and the effort to remove semifinished products from the dies. A hollow semi-finished product is obtained by reverse extrusion. The possibility of carrying out the first drawing operation with thinning through two sequentially located dies with the formation of a hole in the bottom part is shown. After this operation, annealing of the semi-finished product is required to restore plasticity. In the second operation, thinning stretching. 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 sleeve 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. For each transition of stamping, a construction of stamping equipment has been developed. The proposed technology for stamping a sleeve blank can be implemented on a universal pressing equipment, has a high productivity due to a reduction in the number of transitions and minimizes mechanical processing.
References
- Kovka i shtampovka: Spravochnik 4 Vols. Moskow: Mashinostroenie. Vol. 2, Goryachaya ob'emnaya shtampovka, E.I. Semenova Ed. 1986.
- O.V. Kalyuzhniy, V.L. Kalyuzhniy, Intensifikatsiya formoutvoryuyuchih protsesiv holodnogo listovogo shtampuvannya. Kyiv: TOV “Sik Grup UkraYina”, 2015.
- O.V. Kalyuzhniy, S.S. Sokolovska, “Viznachennya parametriv vityaguvannya z potonshennyam zprofilovanim pu-ansonom porozhnistih zagotovok pislya vidavlyuvannya”, Visnik NTU “HPI”: Seriya “Innovatsiyni tehnologiyi ta obladnannya obrobki materialiv u mashinobuduvanni ta metalurgiyi”, Harkiv: NTU “HPI”, No. 36 (1257), pp. 21–28, 2017.
- 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. Technol., No. 1(85), pp. 111–117, 2019. https://doi.org/10.20535/2521-1943.2019.85.164271
- V.N. Danchenko, A.A Milenin, V.I. Kuzmenko, Kompyuternoe modelirovanie protsessov obrabotki metallov davleniem. Chislennyie metodyi, Dnepropetrovsk: Sistemnyie tehnologii, 2008.
- I.S. Aliev, O.E. Markov and Ya.G. Zhbankov, “Vliyanie operatsii vyivorota pokovki konicheskimi plitami na raspredele-nie deformatsiy”, Obrabotka materialov davleniem, Kramatorsk: DGMA, No. 3(24), pp. 64–69, 2010.
- S.A. Snitko, V.L. Kalyuzhnyiy, “Konechno-elementnoe modelirovanie mnogoperehodnogo formoizmeneniya pri pro-izvodstve zheleznodorozhnyih koles”, Vestnik NTUU “KPI”. Mashinostroenie, Kiev: NTUU “KPI”, No. 11, pp. 106–112, 2011.
- I.S. Aliev, Ya.G. Zhbankov and L.V. Tagan, “Upravlenie napryazhenno-deformirovannyim sostoyaniem zagotovki v protsessah kovki krupnyih pokovok”, Obrabotka materialov davleniem, Kramatorsk: DGMA, No. 1(34), pp. 50–59, 2013.
- V. Kaliuzhnyi, et al., “Simulation of Cold Extrusion of Hollow Parts”, Metallurgist, Vol. 61, Nos. 5–6, September, (Rus-sian Original Nos. 5–6, May–June, 2017), pp. 359–365, 2017. https://doi.org/10.1007/s11015-017-0501-1
- V.L. Kalyuzhnyiy, et al., “Goryachaya ob'emnaya shtampovka polyih izdeliy iz vyisokoprochnogo alyuminievogo splava s zadannyimi mehanicheskimi svoystvami”, Zagotovitelnoe proizvodstvo, No. 12, pp. 18–25, 2018.
- V. Kaliuzhnyi, O. Kaliuzhnyi, and K. Marchuk, “Calculation of the size of a hollow workpiece with a thin wall with in-terchangeabe 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. https://doi.org/10.20535/2521-1943.2020.0.219526
- A.V. Tretyakov, V.I. Zyuzin, Mehanicheskie svoystva metallov i splavov pri obrabotke davleniem. Spravochnik. 2th ed, Moscow: Metallurgiya, 1973.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2021 Володимир Калюжний, Олександр Ярмоленко, Костянтин Марчук
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
- 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.
- 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.
- 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