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Features of efficient schemes of complex-shaped forging stamping in an open die designed using numerical simulation

https://doi.org/10.23947/1992-5980-2018-18-1-38-49

Abstract

Introduction. The die stamping (DS) process of the compound cross-section in an open die is considered. The work objective is to determine the form and number of operating steps to obtain the limiting conditions by the adopted parameters. During the investigation, the following lower parameters are determined: uneven strained condition of the considered section of the finished forging; metal consumption on the forging flashes; relative length of the stage of stamping finishing (metal flow only to the flash).

Materials and Methods. The study is based on the use of the numerical finite element method (FEM) for the solution to direct and inverse problems of the component forming under die forging. QForm package is used as a software tool.

Research Results. It is shown that the metal consumption can be reduced from 13-17% of the forging volume in the selected section to the values of 1.8 to 3.5%. The relative length of the stamping finishing stage can be reduced from 17% to 0.4%. The nonuniformity of the distribution of the cumulative deformation along the cross-section is estimated by the corresponding criterion. It can be reduced to the limits typical for optimization-level tasks (when using a profile piece-part) or a level of rational values (under the introduction of a single blanking pass).

Discussion and Conclusions. The quantification of stamping processes considered in this paper can be applied in the generalized type to any form of DS products. This allows improving the quality of forgings and significantly reducing their production cost.

About the Authors

A. V. Vovchenko
Don State Technical University
Russian Federation

Vovchenko, Armenak V., professor of the Shaping Technologies and Material Working Art Department, Dr.Sci. (Eng.), associate professor 

344000, Rostov-on-Don, Gagarin sq., 1



K. A. Kostenko
Don State Technical University
Russian Federation

Kostenko, Konstantin A., engineer of the Shaping Technologies and Material Working Art Department 

344000, Rostov-on-Don, Gagarin sq., 1



O. I. Katrich
Don State Technical University
Russian Federation

Katrich, Oksana I., postgraduate student, senior lecturer of the Shaping Technologies and Material Working Art Department 

344000, Rostov-on-Don, Gagarin sq., 1



References

1. Peretyatko, V.N., et al. Modelirovanie protsessa shtampovki shara. [Ball forming simulation.] Izvestia. Ferrous Metallurgy, 2008, no. 12, pp. 30–31 (in Russian).

2. Semenov, V.I. ed. Kovka i shtampovka. Spravochnik v 4 t. [Blachsmithing and stamping. Reference book in 4 vol.] Moscow: Mashinostroenie, 1986, vol. 2, 592 p. (in Russian).

3. Gubkin, S.I., Yushkov, A.V., Dobrovolskiy, S.I. Vyyasnenie prichin rassloeniya metalla (v ploskosti obloynogo mostika) pri ob''emnoy shtampovke. [Causation of spilly metal (in the plane of flash bridge) under die forging.] Coll. Sci. papers, FTI AN BSSR, Minsk: Izd-vo AN BSSR, 1955, iss. 2, pp. 16–22 (in Russian).

4. Okhrimenko, Y.M. Tekhnologiya kuznechno-shtampovochnogo proizvodstva. [Die forging technology.] 2nd revised and enlarged ed. Moscow: Mashinostroenie, 1976, 560 p. (in Russian).

5. Zaslavskiy, V.M. Novoe v tekhnologii shtampovki diskov i koles. [New in technology of forming disks and wheels.] Forging and Stamping Production, 1994, no. 1, pp. 25–26 (in Russian).

6. Vovchenko, A.V. Sovershenstvovanie tekhnologii protsessov ob''emnoy shtampovki na osnove primeneniya granichno-elementnykh raschetov. [Technological advancement of die forging on the basis of application of boundary-element calculations.] Rostov-on-Don, DSTU Publ. Centre, 2011, 264 p. (in Russian).

7. Gun, G.Y., et al. Avtomatizirovannaya sistema Form-2D dlya rascheta formoizmeneniya v protsesse shtampovki na osnove metoda konechnykh elementov. [Automated system Form-2D for calculating forming under stamping process based on the finite element method.] Forging and Stamping Production, 1992, no. 9/10, pp. 4–7 (in Russian).

8. Aliev, Ch.A, Teterin, G.P. Sistema avtomatizirovannogo proektirovaniya tekhnologii goryachey ob''emnoy shtampovki. [CAD system of hot forging technology.] Moscow: Mashinostroenie, 1987, 224 p. (in Russian).

9. Teterin, G.P., Polukhin, P.I. Osnovy optimizatsii i avtomatizatsii proektirovaniya tekhnologicheskikh protsessov goryachey ob''emnoy shtampovki. [Optimization and design automation basics of hot die forging.] Moscow: Mashinostroenie, 1979, 284 p. (in Russian).

10. Reznikov, Y.N., Kalinin, G.G. Optimizatsiya zagotovitel'nykh ruch'yev dlya pokovok, izgotovlyaemykh ob''emnoy shtampovkoy. [Optimization of roughing impressions for forgings produced by bulk forming.] Forging and Stamping Production, 1998, no. 10, pp. 8–10 (in Russian).

11. Reznikov, Yu.N., Vovchenko, A.V., Zhilenkov, V.E. Ob optimizatsii protsessov deformirovaniya metallov [On the Optimization of Metal Forming.] Russian Metallurgy (Metally), 2006, no. 1, pp. 33–37.

12. Reznikov, Yu.N., Vovchenko, A.V., Bykodorov, A.V. Umen'shenie dlitel'nosti stadii doshtampovki na osnove modelirovaniya formoizmeneniya. [Pre-stamping stage time reduction based on shaping simulation.] Forging and Stamping Production, 2001, no. 4, pp. 33–36 (in Russian).

13. Vovchenko, A.V., Reznikov, Yu.N., Soloviev, A.N. O vozmozhnosti uluchsheniya resheniy obratnykh zadach rascheta formoizmeneniya v protsessakh OMD. [About a possibility of martempering of solutions of inverse problems of calculation deformation in processes of forging of metal.] University News. North-Caucasian region. Technical Sciences Series, 2009, no. 3, pp. 60–64 (in Russian).

14. Reznikov, Yu.N. Raschet formy i razmerov zagotovok v protsessakh ob''emnoy shtampovki metodom verkhney otsenki. [Calculation of shape and dimensions of semiproducts in processes of die forging using upper evaluation.] Steel in the USSR, 1979, February, pp. 78–82.

15. Vovchenko, A.V. Otsenka urovnya optimal'nosti raspredeleniya nakoplennoy deformatsii v pokovkakh, izgotavlivaemykh v otkrytykh shtampakh. [Assessment of optimality level of accumulated strain distribution in forgings made in open press tools.] Vestnik of DSTU, 2011, vol. 11, no. 6 (57), pp. 833—841 (in Russian).


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For citations:


Vovchenko A.V., Kostenko K.A., Katrich O.I. Features of efficient schemes of complex-shaped forging stamping in an open die designed using numerical simulation. Vestnik of Don State Technical University. 2018;18(1):38-49. (In Russ.) https://doi.org/10.23947/1992-5980-2018-18-1-38-49

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