Obrabotka metallov

OBRABOTKA METALLOV

METAL WORKING AND MATERIAL SCIENCE
Print ISSN: 1994-6309    Online ISSN: 2541-819X
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Recent issue
Vol. 27, No 2 April - June 2025

Experimental determination of energy-power parameters and components of deformation during cyclic forming of material

Issue No 1 (66) January - March 2015
Authors:

Chernomas Vadim Vladimirovich,
Sevastyanov Georgiy Mamievich,
Sevastyanov Anton Mamievich,
Bondarenko Svetlana Vladimirovna
DOI: http://dx.doi.org/10.17212/1994-6309-2015-1-33-41
Abstract
Production of special types of rolled nonferrous alloys using the combined technology of casting and deformation is a relatively new trend in resource-saving metallurgy. In domestic practice such techniques are implemented in the device for continuous casting and metal deformation. The key features of this device are cyclicity of process and the presence of large irreversible deformations of the workpiece (a strip of rectangular cross section in movable crystallizer, closed on four sides). These features lead to the problem of experimental data obtaining on the energy-power parameters of deformation, as well as the distribution and intensity of the strain state of the workpiece. In this paper, we propose a method for determining the instantaneous power of irreversible form changing by means of indirect measurements. The technique based on the detection and analysis of changes in the electrical characteristics of the motor drive in two modes of operation of the plant: cyclic deformation of the specimen and the motion of plant components without specimen deformation. We propose a method for directly measuring the components of the plastic deformation of the workpiece based on the method of knurled dividing grid with subsequent calculations by the Zibel's method. The experimental results indicate the expressed triaxial strain state of the workpiece because of the combined action of elongation and shifts in two mutually perpendicular planes. Verification of software package LS-DYNA carried out based on obtained experimental data by solving the problem of constrained shear, which coupled with the large plastic deformations.
Keywords: cyclic forming, components of plastic deformation, strain intensity, power of irreversible form changing, deformation tool.

References
1. Sidelnikov S.B. Klassifikatsiya i oblasti primeneniya sovmeshchennykh i kombinirovannykh protsessov obrabotki tsvetnykh metallov i splavov [Classification and fields of application of integrated and combined methods to process non- ferrous metals and alloys]. Izvestiya vusshikh uchebnykh zavedenii. Tsvetnaya metallurgiya – Russian Journal of Non-Ferrous Metals, 2005, no. 3, pp. 45–49. (In Russian)

2. Sidelnikov S.B., Dovzhenko N.N., Soldatov S.V., Dovzhenko I.N., Galiev R.I., Sidel'nikov A.S., Kiselev A.L., Bespalov V.M., Samchuk A.P. Sovershenstvovanie konstruktsii ustanovok sovmeshchennoi obrabotki alyuminiya i ego splavov [Improving plant designs combined treatment of aluminum and its alloys]. Mekhanicheskoe oborudovanie metallurgicheskikh zavodov Mechanical machinery of metallurgical enterprises, 2013, no. 2, pp. 7–12.

3. Gorokhov Yu.V., Zagirov N.N., Gubanov I.Yu. Calculation of deformation-zone parameters during continuous extrusion by the conform method. Russian metallurgy (Metally), 2004, no. 4, pp. 396–399.

4. Langerweger J.F., Maddock B. Recent development in CONFORM and CASTEX continuous extrusion technology. Proceedings of Fourth International Aluminum Extrusion Technology Seminar, Chicago, Illinois, April 11–14, 1988, vol. 2, pp. 533–538.

5. Odinokov V.I., Chernomas V.V., Lovizin N.S. Dvukhruch'evoi liteino-kovochnyi modul' gorizontal'nogo tipa dlya proizvodstva nepreryvnolitykh deformirovannykh zagotovok iz tsvetnykh splavov [Two-strand casting-forging module horizontal type for the production of continuously deformed pieces of non-ferrous alloys]. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) Metal Working and Material Science, 2008, no. 1, pp. 12–14.

6. Odinokov V.I., Chernomas V.V., Lovizin N.S., Stulov V.V., Sklyar S.Yu. Technology for preparing metal objects in a horizontal casting and metal deformation unit. Metallurgist, 2009, vol. 53, iss. 7–8, pp. 412–415. doi: 10.1007/s11015-009-9198-0

7. Stulov V.V., Odinokov V.I., Ogloblin G.V., Chernomas V.V., Derbetkin A.A. Producing continuous-cast deformed steel billet. Steel in Translation, 2009, vol. 39, iss. 8, pp. 639–644. doi: 10.3103/S0967091209080075

8. Chernomas V.V., Lovizin N.S., Sosnin A.A. Stability criteria for manufacturing metal products on a horizontal metal casting and deformation plant. Journal of Machinery Manufacture and Reliability, 2012, vol. 41, iss. 2, pp. 158–162. doi: 10.3103/S1052618812020045

9. Burenin A.A., Kovtanyuk L.V. Bol'shie neobratimye deformatsii i uprugoe posledeistvie [Large irreversible deformation and elastic aftereffect]. Vladivostok, Dal'nauka Publ., 2013. 311 p. ISBN 978–5–8044–1423–9

10. Prigorovskii N.I. Metody i sredstva opredeleniya polei deformatsii i napryazhenii: Spravochnik [Methods and means of determining the strain and stress fields. Handbook]. Moscow, Mashinostroenie Publ., 1983. 248 p.

11. Ostrovskii Yu.I., Shepinov V.P., Yakovlev V.V. Golograficheskie interferentsionnye metody izmereniya deformatsii [Holographic interference method for measuring deformation]. Moscow, Nauka Publ., 1988. 248 p.

12. Fridman Ya.B., Zilova T.K., Demina N.I. Izuchenie plasticheskoi deformatsii i razrusheniya metodom nakatannykh setok [The study of plastic deformation and fracture by formed grids method]. Moscow, Oborongiz Publ., 1962. 188 p.

13. GOST 129281. Splavy svintsovo-sur'myanistye. Tekhnicheskie usloviya [State Standard 1292–81. Lead-antimony alloys. Specifications]. Moscow, Standartinform Publ., 2000. 10 p.

14. Smirnov-Alyaev G.A., Chikidovskii V.P. Eksperimental'nye issledovaniya v obrabotke metallov davleniem [Experimental studies in metal forming]. Leningrad, Mashinostroenie Publ., 1972. 360 p.

15. Shestakov N.A., Vlasov A.V. Raschety protsessov obrabotki metallov davleniem v MathCAD. Reshenie zadach energeticheskim metodom [Calculations of metal forming processes in MathCAD. Problem solving by energy method]. Moscow, MGIU Publ., 2008. 344 p. ISBN 5–276–00076–X
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