Simulation of the chamfering process in dies
DOI:
https://doi.org/10.15587/1729-4061.2015.39999Keywords:
cutting, die, stress-strain state, sliding punch, finite element methodAbstract
Bevel cutting in special dies on the pressing equipment is a progressive method of preparing edges for welding. The basic methods of bevel cutting and chamfering before welding were considered. The principal difference between the schemes is the original arrangement of workpieces, geometry of the cutting edge and motion direction of the punch.
The purpose of the study is to determine the stress-strain state of the system "cutter-workpiece" and select a rational cutting scheme in terms of the smallest loads, acting on the tool.
A comparison of the stress-strain state parameters under various chamfering schemes was performed by modeling using the software package ANSYS/LS-DYNA. For this, calculation schemes of the models were drawn, optimal parameters of the model parts and types of their contact interaction were determined. The result of the calculations is equivalent stress-strain distribution diagrams, graphics of the stress change on the cutting edge of the tool in time, and chamfering process visualization.
The results suggest that in terms of the stability of die tooling and quality of the design elements, cutting scheme with a punch, which performs translational motion simultaneously in two directions - horizontal and vertical is more rational. As a result of numerical simulation, it was found that the stresses on the cutting edge of the punch are reduced by more than 400 MPa and workpiece distortion and burr formation are eliminated when cutting using the proposed scheme.
The proposed cutting scheme was implemented in the design of the die, used in the production cycle of PJSC "Krukovka Carriages". Persistence of the most loaded nodes of the die is hundreds of times higher than previously used die tooling.
References
- Gyrdymov, G. P., Zilburg, L. I., Savcenko, I. D., Shalyshyn, V. D. (1990). Avtomatizatsiya tehnologicheskoy podgotovki zagotovitelnogo proizvodstva. Lviv: Mashinostroyeniye, 350.
- Dragobetskiy, V. V., Martsynyuk, O. B. (2005). Sopostavleniye energeticheskikh parametrov, protsessov termicheskoy i mekhanicheskoy rezki listovykh zagotovok. Visnyk KDPU, 30, 64–66.
- Dragobetskiy V. V., Martsynyuk O. B. Naumove Ye. A. Pirogov D. L. (2008). Visnyk Skhidnoukrayinskogo natsionalnogo universytetu imeni Volodymyra Dalya, 124,1, 85 – 88.
- Dragobetskiy, V. V., Martsynyuk, O. B. (2005). Novyye metody snizheniya raboty plasticheskoy deformatsii v operatsiyakh probivki i vyrubki. Visnyk KDPU, 30, 67–69.
- Cleary, P. W., Prakash, M., Das, R., Ha, J. (2012). Modelling of metal forging using SPH. Applied Mathematical Modelling, 36 (8), 3836–3855. doi: 10.1016/j.apm.2011.11.019
- Gerber, B., Yang, T. C. (2008). Making an impact. ANSYS Advantage, 2 (4), 40–42.
- Tynyanyi, A. F. (2004). Chislennoye modelirovaniye kontaktnoy zadachi v ramkakh kvazistaticheskogo uprugoplasticheskogo deformirovaniya v pakete AnSYS/LS-DYNA. Neftegazovoye delo, 1.
- Ilyushkin, M. V. (2012). Modelirovaniye protsessov obrabotki davleniyem v programme ANSYS/LS-DYNA: uchebno-metodicheskoye posobiye. Ulyanovsk: UlGU, 1, 91.
- Kryvoruchko, D. V., Zaloga, V. O., Korbach, V. G. (2009). Osnovy 3D-modelyuvannya protsesiv mekhanichnoyi obrobky metodom skinchenykh elementiv: navchalnyy posibnyk. Sumy: SumDU, 1, 208.
- MatWeb, Your Source for Materials Information. Available at: http://www.matweb.com/
- Jones, N., Griffin, R. N., Van Duzer, R. E. (1971). An experimental study into the dynamic plastic behaviour of wide beams and rectangular plates. International Journal of Mechanical Sciences, 13 (8), 721–735. doi: 10.1016/0020-7403(71)90072-5
- Jones, N., Soares, C. G. (1978). Higher modal dynamic plastic behavior of beams loaded impulsively. International Journal of Mechanical Sciences, 20 (3), 135–147. doi: 10.1016/0020-7403(78)90001-2
- Sturgess, C. E., Jones, M. (1971). Estimation of dynamic forces in high-speed compression using a free-flight impact forging device. International Journal of Mechanical Sciences, 13 (4), 309–322. doi: 10.1016/0020-7403(71)90056-7
- Jones, N., Marcilio, A. (2010). Post-Failure Behaviour of Impulsively Loaded Circular Plates. International Journal of Mechanical Sciences, 52 (5), 706–715. doi: 10.1016/j.ijmecsci.2009.11.014
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2015 Сергей Викторович Шлык, Владимир Леонидович Хорольский, Мария Игоревна Наумова
![Creative Commons License](http://i.creativecommons.org/l/by/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution 4.0 International License.
The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.
A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.