ArticleName |
Extraction of square box parts with lateral pushing and squeezing |
ArticleAuthorData |
Tula State University (Tula, Russia):
Yu. V. Bessmertnaya, Cand. Eng., Associate Prof., Dept. of Plastic Forming Mechanics, e-mail: bessmertny@rambler.ru S. N. Larin, Dr. Eng., Prof., Head of Dept. of Plastic Forming Mechanics |
Abstract |
Modern development of mechanical engineering sets the tasks consisting in increasing of quality of produced parts, development and introduction of waste-free and lowwaste technological processes. Non-waste and low-waste production reduces the cost of raw materials, which affects the production cost and leads to increased profits. New technological processes for obtaining square box parts can be used at various enterprises of the rocket and space complex, defense industry, aircraft construction, shipbuilding, instrument making, construction, energy, as well as at enterprises producing consumer goods. Also square box parts can be used as metal packing, i.e containers. This is a strong, reliable package that has a low weight and a number of advantages. Manufacture of this type of parts is used in mass and largescale production. In modern mechanical engineering, sheet metal stamping operations are widely used, in which up to 30% or more of metal is discarded when using round and profile blanks. It should be noted that 90% of the cost of finished parts is the cost of metal, so the development of manufacturing technologies in which raw materials are used rationally, is currently an urgent task. The article presents a method of manufacturing square box parts from a square sheet blank, which reduces or eliminates crowning in a square shell. The choice of a square blank is due to the fact that when it is produced, the utilization factor of the material during cutting is 100%. Reducing waste on a large scale leads to significant savings. The research was conducted within the framework of the grant NSh-2601.2020.8. |
References |
1. Zubtsov М. Е. Sheet stamping. Leningrad: Mashinostroenie, 1980. 432 p. 2. Romanovskiy V. P. Cold stamping guide. Leningrad: Mashinostroenie, 1979. 520 p. 3. Yakovlev S. P., Yakovlev S. S., Andreychenko V. А. Anisotropic materials forming. Kishinev: Kvant, 1997. 332 p. 4. Chudin V. N. Extraction of sheet box-shaped products. Kuznechno-shtampovochnoe proizvodstvo. 2002. No. 6. pp. 3–8. 5. Wei D., Luo L., Satoc H., Jiang Zh., Manabec K. Simulations of hydro-mechanical deep drawing using Voronoi model and real microstructure model. Procedia Engineering. 2017. Vol. 207. pp. 1033–1038. 6. Tang W., Huang Sh., Li D., Peng Y. Mechanical anisotropy and deep drawing behaviors of AZ31 magnesium alloy sheets produced by unidirectional and cross rolling. Journal of Materials Processing Technology. 2015. Vol. 215. pp. 320–326. 7. Abea Y., Ohmia T., Moria K., Masudab T. Improvement of formability in deep drawing of ultrahigh strength steel sheets by coating of die. Journal of Materials Processing Technology. 2014. Vol. 214, Iss. 9. pp. 1838–1843. 8. Dhaiban A. A., Soliman M.–Emad S., El-Sebaie M. G. Finite element modeling and experimental results of brass elliptic cups using a new deep drawing process through conical dies. Journal of Materials Processing Technology. 2014. Vol. 214, Iss. 4. pp. 828–838. 9. Kriechenbauer S., Mauermann R., Muller P. Deep Drawing with Superimposed Low-frequency Vibrations on Servo-screw Presses. Procedia Engineering. 2014. Vol. 81. pp. 905–913. 10. Cui X., Mo J., Fang J., Li J. Deep Drawing of Cylindrical Cup Using Incremental Electromagnetic Assisted Stamping with Radial Magnetic Pressure. Procedia Engineering. 2014. Vol. 81. pp. 813–818. 11. Bao Meng, Min Wan, Sheng Yuan, Xudong Xu, Jie Liu, Zhenbiao Huang. Influence of cavity pressure on hydrodynamic deep drawing of aluminum alloy rectangular box with wide flange. International Journal of Mechanical Sciences. 2013. Vol. 77. pp. 217–226. 12. Kukhar V. D., Malyshev А. N., Bessmertnaya Yu. V. Extraction of a square box from a sheet blank in a radial and conical matrix. Izvestiya TulGU. Seriya Tekhnicheskie nauki. 2016. Iss. 7. pp. 9–13. 13. Korotkov V. А., Platonov V. I., Bessmertnaya Yu. V., Samsonov N. А. Elimination of scallops during drawing of cylindrical shells from sheet metals with planar anisotropy of mechanical properties. Kuznechno-shtampovochnoe proizvodstvo. Obrabotka metallov davleniem. 2018. No. 10. pp. 34–39. 14. Larin S. N., Platonov V. I., Korotkov V. А. The design of a matrix for drawing of materials possessing planar anisotropy of mechanical properties. Tsvetnye Metally. 2018. No. 7. pp. 83–87. 15. Demin V. А., Chernyaev А. V., Platonov V. I., Korotkov V. А. Experimental technique for determining the mechanical properties of metal under stretching at high temperature. Tsvetnye Metally. 2019. No. 5. pp. 66–73. 16. Pasynkov А. А., Boriskin О. I., Larin S. N. Theoretical researches on operation of isothermal distribution of tubes from difficult-to-form non-ferrous alloys in conditions of a short-term creep. Tsvetnye Metally. 2018. No. 2. pp. 74–78. 17. Korotkov V. A., Bessmertnaya Yu. V., Larin S. N., Samsonov N. A., Danilichev D. I. Method of producing shells from square-shaped sheet workpieces. Patent RF. No. 2710198. Published: 25.12.2019. Bulleten No. 36. 18. Biba N. V., Stebunov S. А. QForm 5.0 is a software tool to increase production efficiency in metal forming. 2008. Available at: https://qform3d.ru/files_ru/2008_0001.pdf (accessed: 26.07.2021). |