CALCULATIONS FOR THE STRENGTH OF CASTING AT THE FORMATION OF ITS CAVITY BY CYLINDRICAL ROD
https://doi.org/10.17073/0368-0797-2016-1-39-42
Abstract
The mathematical model of stress calculation of casting at forming
of its cavity by cylindrical rod has been analyzed in the paper. The dependencies of arising radial and tangential stresses were determined, as well as distributed contact pressure predicting force interaction of the “casting-rod” system in various combinations of stiff ness expressed by modulus of elongation. It is shown that the highest stresses occur in the layers of casting adjacent to the rod surface. The infl uence of the temperature gradient, the rigidity of the casting and sand-clay molding sand, casting geometric para meters displayed wall thickness and the outer radius, on the value of appearing in the casting of radial, tangential and equivalent stresses, as well as the distribution of contact forces has been considered. The impact of these factors on the strain-stress state of the casting wall, expressed in terms of equivalent stress obtained using the second hypothesis strength has been estimated.
About the Author
A. S. Savinov
Magnitogorsk state technical university named after G.I. Nosov (38, Lenina ave., Magnitogorsk, 455000, Russia)
Russian Federation
Russian Federation
Sci. (Eng.), Assist. Professor, Head of the Chair of Mechanics
References
1. Shagalov V.L., Popov S.I. Technological sample for testing of steel on crack resistance. Liteinoe proizvodstvo. 1989, no. 5, pp. 7–8. (In Russ.).
2. Timofeev A.A., Shumov I.D. Test for casting stress. Liteinoe proizvodstvo. 1971, no. 7, pp. 40–42. (In Russ.).
3. Balandin G.F., Gini E.I., Matvienko Yu.P. etc. Technological samples for controlling hot cracks in panel moldings. Izvestiya VUZov. Mashinostroenie. 1964, no. 1, pp. 198–203. (In Russ.).
4. Shvetsov V.I., Kulakov B.A., Ivanov M.A. Osobennosti proizvodstva otlivok iz stali: monografi ya [Features of the production of steel castings: monograph]. Chelyabinsk: Izdatel’skii tsentr YuUrGU, 2014, 240 p. (In Russ.).
5. Bochvar A.A., Rykalin N.N., Prokhorov I.I. etc. On the hot solidification cracks during casting and welding. Liteinoe proizvodstvo. 1960, no. 10, p. 47. (In Russ.).
6. Balandin G.F., Kashirtsev L.P. Rheological investigation of crack resistance of castings during their solidifi cation. Liteinoe proizvodstvo. 1978, no. 1, pp. 5–8. (In Russ.).
7. Rybachuk S.I., Desnitskii V.V., Primak I.N. etc. Mathematical model of hot cracking formation probability in castings. Liteinoe proizvodstvo. 1980, no. 3, pp. 2–3. (In Russ.).
8. Vdovin K.N., Savinov A.S., Feoktistov N.A. Prediction of crack resistance of large steel castings. Liteinoe proizvodstvo. 2014, no. 12, pp. 8–10. (In Russ.).
9. Balandin G.F., Stepanov Yu.A. On force interaction of solidifying casting and mold. Liteinoe proizvodstvo. 1962, no. 4, pp. 37–41. (In Russ.).
10. Gulyaev B.B. Liteinye protsessy [Foundry processes]. Moscow: Mashgiz, 1960, 416 p. (In Russ.).
11. Konstantinov L.S., Trukhov A.P. Napryazheniya deformatsii i treshchiny v otlivkakh [Deformation stresses and cracks in castings]. Moscow: Mashinostroenie, 1981. – 199 s. (In Russ.).
12. Savinov A.S., Tubol’tseva A.S., Sinitskii E.V. Analysis of the force mold- shape interaction. Izvestiya Samarskogo nauchnogo tsentra Rossiiskoi akademii nauk. Samara: Izd-vo Samarskogo nauchnogo tsentra RAN, 2011, pp. 623–626. (In Russ.).
13. Darkov A.V., Shpiro G.S. Soprotivlenie materialov [Strength of materials]. Moscow: Vysshaya shkola, 1975, 654 s. (In Russ.).
14. Morozeiskii L.I., Mitenev O.A. The study of casting of wide slabs into molds with wavy surface. In: Problemy stal’nogo slitka. Fizikokhimicheskie protsessy kristallizatsii stal’nykh slitkov: sb. nauch. tr. [Problems of steel ingot. Physical and chemical processes of crystallization of steel ingots: Coll. of sci.papers]. Moscow: Metallurgiya, 1967, no. 2, pp. 439–447. (In Russ.).
15. Savinov A.S., Tubol’tseva A.S., Dzyuba V.P. etc. Investigation of the physical properties of dry sand-clay molds. Dep. VINITI, no. 82 - V2012. Moscow: 2012, 10 p. (In Russ.)
Review
For citations:
Savinov A.S. CALCULATIONS FOR THE STRENGTH OF CASTING AT THE FORMATION OF ITS CAVITY BY CYLINDRICAL ROD. Izvestiya. Ferrous Metallurgy. 2016;59(1):39-42. (In Russ.) https://doi.org/10.17073/0368-0797-2016-1-39-42
Views:
530
Email this article 