BOUNDARY ELEMENT DETERMINATION OF STRAIN UNIFORM DISTRIBUTION CONDITIONS IN FORGINGS PRODUCED UNDER BROACHING BY RADIAL ROLLING-IMPRESSION DIES
Abstract
The boundary element analysis data of forging round cross-section blanks by the radial rolling-impression dies are presented. The effective technological parameter boundary values for the forging process which permit to lower the increase of the strain nonuniformity in forging cross section are defined. The numerical analysis data are put in the functional expressions making connection between the broaching technological parameters, notch parameters in the dies, and cross section in the blanks used.
References
1. Tarnovskij I.Ya. Svobodnaya kovka na pressax / I.Ya. Tarnovskij, V.N. Trubin, M.G. Zlatkin. – M.: Mashinostroenie, 1967. – 328 s. – In Russian.
2. Unksov E.P. Inzhenernaya teoriya plastichnosti: metody` raschyota usilij deformirovaniya / E.P. Unksov. – M.: GNTI ML, 1959. – 328 s. – In Russian.
3. Sokolov L.N. Teoriya i texnologiya kovki / L.N. Sokolov, N.K. Golubyatnikov, V.N. Efimov, I.P. Shelaev; pod red. L.N. Sokolova. – Kiev: Vy`shha shkola, 1989. – 317 s. – In Russian.
4. Vovchenko A.V. Ob opredelenii e`ffektivny`x uslovij kovki radial`no-vy`rezny`mi bojkami chislenny`m metodom granichny`x e`lementov / A.V. Vovchenko // Izv. RAN. Seriya «Metally`». – 2012. – № 2. – In Russian.
5. Vovchenko A.V. Sovershenstvovanie texnologii processov ob``yomnoj shtampovki na osnove primeneniya granichno-e`lementny`x raschyotov: monografiya / A.V. Vovchenko. – Rostov n/D: Izda-tel`skij centr DGTU, 2011. – In Russian.
6. Brebbiya K. Metody` granichny`x e`lementov / K. Brebbiya, Zh. Telles, L. Vroubel. – M.: Mir, 1987. – 524 s. – In Russian.
7. Vovchenko A.V. Ocenka urovnya optimal`nosti raspredeleniya nakoplennoj deformacii v pokovkax, izgotavlivaemy`x v otkry`ty`x shtampax / A.V. Vovchenko // Vestn. Donsk. gos. texn. un-ta. – 2011. – T.11. – №6(57). – S. 833–841. – In Russian.
8. Reznikov Yu.N. Optimizaciya zagotovitel`ny`x ruch`yov dlya pokovok, izgotovlyaemy`x ob``yomnoj shtampovkoj / Yu.N. Reznikov, G.G. Kalinin // Kuznechno-shtampovochnoe proizvodstvo. – 1998. – № 10. – S. 8–10. – In Russian.
9. Svedlou Dzh. Vy`vod granichny`x integral`ny`x uravnenij dlya tryoxmernogo uprugoplasticheskogo techeniya / Dzh. Svedlou, T. Kruz // Mexanika: period. sb. perevodov. – 1972. – №4 (134). – S. 96–106. – In Russian.
10. Gol`dshtejn R.V. K voprosu o primenenii metoda granichny`x integral`ny`x uravnenij dlya resheniya zadach mexaniki sploshny`x sred / R.V. Gol`dshtejn // Metod granichny`x integral`ny`x uravnenij: Vy`chislitel`ny`e aspekty` i prilozheniya v mexanike (Mexanika: novoe v zarubezhnoj nauke). – M.: Mir, 1978. – S. 183–209. – In Russian.
11. Alekseev Yu.N. Vvedenie v teoriyu obrabotki metallov davleniem, prokatkoj i rezaniem: monografiya / Yu.N. Alekseev. – Xar`kov: Izd-vo Xar`kovskogo un-ta, 1969. – 108 s. – In Russian.
12. Pisarenko G.S. Uravneniya i kraevy`e zadachi teorii plastichnosti i polzuchesti: sprav. posobie / G.S. Pisarenko, N.S. Mozharovskij. – Kiev: Naukova dumka, 1981. – 496 s. – In Russian.
13. Babichev A.P. Fizicheskie velichiny`: spravochnik / A.P. Babichev, N.A. Babushkina, A.M. Bratkovskij [i dr.]; pod red. I.S. Grigor`eva, E.Z. Mejlixova. – M.: E`nergoatomizdat, 1991. – 1232 s. – In Russian.
14. Brovman M.Ya. Soprotivlenie deformacii v processax obrabotki davleniem pri vy`sokix temperaturax / M.Ya. Brovman // Texnologiya lyogkix splavov. – 1979. – №8. – S. 26–30. – In Russian.
15. Garnaev A.Yu. Ispol`zovanie MS Excel i VBA v e`konomike i finansax / A.Yu. Garnaev. – SPb.: BXV – Sankt-Peterburg, 1999. – 336 s. – In Russian.
Review
For citations:
Vovchenko A.V. BOUNDARY ELEMENT DETERMINATION OF STRAIN UNIFORM DISTRIBUTION CONDITIONS IN FORGINGS PRODUCED UNDER BROACHING BY RADIAL ROLLING-IMPRESSION DIES. Vestnik of Don State Technical University. 2012;12(4):48-55. (In Russ.)
Views:
372
Email this article 