Email this article THE FORECASTING OF THE EFFECTVE THICKNESS OF A TEMPERED BY HIGH FREQUENCY CURRENT LAYER FOR THE “REVERSE IDLER GEAR SHAFT” DETAIL ACCORDING TO THE 45 STEEL ESTIMATED HARDENABILITY
- Authors: Pirogov O.K.1, Merson D.L.2, Akhantiev V.P.3
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Affiliations:
- Togliatti State University, Togliatti JSC «VIS», Togliatti
- Togliatti State University, Togliatti
- JSC «VIS», Togliatti
- Issue: No 4 (2015)
- Pages: 89-94
- Section: Technical Sciences
- URL: https://vektornaukitech.ru/jour/article/view/350
- DOI: https://doi.org/10.18323/2073-5073-2015-4-89-94
- ID: 350
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Abstract
The study is performed on the example of “Reverse idler gear shaft” part made of 45 steel and covers the development of methodology of forecasting the effective thickness of a tempered by high frequency currents layer with the help of estimated hardenability, which uses data of metal acceptance test by chemical composition and grain size.
The research is caused by the necessity of increase of the tempering equipment capacity and the reduction of working time for the estimated hardenability determination. The work was performed taking into account the lack of research in scientific literature containing the detailed description of methodology for forecasting of hardness and effective thickness of tempered with high frequency currents layer for the parts made of 45 steel using the estimated hardenability. In this research, the authors, firstly, analyzed the heat chemistry, secondly, determined the values of hardness depending on the layer effective thickness, and, thirdly, built the estimated hardenability curves using the Daido Steel (DS) method and the layer effective thickness dependences on the estimated hardenability.
It was determined, that the above-mentioned dependences allow forecasting the layer effective thickness with the desired precision prior to the “HFC hardening” operation that serves as the basis for the proposed methodology implementation into production.
The developed methods allow the following:
- to reduce the working time for determining the effective thickness of a tempered with high frequency currents layer, as compared to the control in a specialized laboratory;
- to eliminate in the existing production the necessity of control of the layer effective thickness after the “HFC hardening” operation, and therefore, to avoid the equipment downtime due to the use of data of the supplied metal acceptance test by chemical composition.
About the authors
Oleg Konstantinovich Pirogov
Togliatti State University, TogliattiJSC «VIS», Togliatti
Author for correspondence.
Email: d383-j488@yandex.ru
graduate student, engineer
Russian FederationDmitriy Lvovich Merson
Togliatti State University, Togliatti
Email: D.Merson@tltsu.ru
Doctor of Sciences (Physics and Mathematics), Professor, Director of the Research Institute of Progressive Technologies
Russian FederationValery Pavlovich Akhantiev
JSC «VIS», Togliatti
Email: ahantev_vp@vis.su
engineer
Russian FederationReferences
- GOST 1050-88. Prokat sortovoy, kalibrovanny, so spetsialnoy otdelkoy poverkhnosti iz uglerodistoy kachestvennoy konstruktsionnoy slali [State Standard 1050-88. Carbon structural quality steel gauged bars with special surface finish. General specifications]. Moscow, Standartinform Publ., 2008. 17 p.
- Cărămidaru V.D., Vela I. Heat Treatments and Materials Used in the Manufacturing of the Gear Wheels. Analele Universităţii Eftimie Murgu Reşiţa. Fascicula de Inginerie, 2010, vol. XVII, no. 2, pp. 65–74.
- Kosec B., Karpe B., Licen M., Kosec G. Inductive heating and quenching of planetary shafts. Journal of Achievements in Materials and Manufacturing Engineering, 2010, vol. 39, no. 2, pp. 190–196.
- Malinkina E.I., Lomakin V.N. Prokalivaemost stali [Hardenability of steels]. Moscow, Mashinostroenie Publ., 1970. 180 p.
- Kozlovsky I.S. Prokalivaemost stali [Hardenability of steels]. Moscow, Mashgiz Publ., 1945. 95 p.
- Kachanov N.N. Prokalivaemost stali [Hardenability of steels]. Moscow, Metallurgiya Publ., 1978. 192 p.
- Akhantyev V.P., Kulenko A.V. Otsenka primeneniya metodov rascheta prokalivaemosti po sostavu dlya tsementuemykh slaley [Evaluation of application methods of hardenability calculation by composition for carburizing steels]. Togliatti, ITs OAO AVTOVAZ Publ., 2002. 9 p.
- Kulenko A.V., Firsov D.G., Kuznetsov A.V. Adaptatsiya raschetnykh metodik opredeleniya prokalivaemosti po khimicheskomu sostavu dlya vozmozhnosti otsenki kachestva sortovogo prokata tsementuemykh i uluchshaemykh staley, ispolzuemykh dlya izgotovleniya otvetstvennykh detaley KP i shassi [The adaptation of calculation methods for determination of hardenability by chemistry for the possibility of quality evaluation of rolled carburizing and heat treatable steels used for production of vital parts of transmission and chassis]. Togliatti, OAO AVTOVAZ Publ., 2013. 70 p.
- Meskin V.S. Osnovy legirovaniya stali [Basics of steel alloyage]. Moscow, Metallurgizdat Publ., 1959. 688 p.
- Staoeko R., Adrian H. The effect of nitrogen and vanadium on hardenability of medium carbon 0.4 %C and 1.8 %Cr steel. Archives of Materials Science and Engineering, 2008, vol. 33, no. 2, pp. 69–74.
- Rosso M., Dobrzański L.A., Otręba J., Grande M. Mechanical properties and microstructural characteristic of sinter-hardened steels. Archives of Materials Science and Engineering, 2009, vol. 35, no. 2, pp. 117–124.
- Gilyaev A.P. Metallovedenie [Metal science]. Moscow, Metallurgiya Publ., 1986. 544 p.
- Smirnov M.A. Osnovy termicheskoy obrabotki stali [Basics of heat treatment of steels]. Moscow, Nauka i tekhnologii Publ., 2002. 519 p.
- Krishtal M.A., Borgardt A.A., Vyboyshchik M.A. Metallovedenie uglerodistykh staley [Metal science of carbon alloys]. Togliatti, TolPI Publ., 1994. 108 p.
- Entin R.I. Prevrashcheniya austenita v stali [Transformation of austenite into steels]. Moscow, Metallurgizdat Publ., 1960. 252 p.
- GOST 5657-69. Stal’. Metod ispytaniya na prokalivaemost [State Standard 5657-69. Steel. Methods for the determination of hardenability]. Moscow, Standartinform Publ., 1993. 7 p.
- Sitek W., Trzaska J. Hybrid modelling methods in materials science – selected examples. Journal of Achievements in Materials and Manufacturing Engineering, 2012, vol. 54, no. 1, pp. 93–102.
- Telejko I., Adrian H., Skalny K., Pakiet M., Staśko R. The investigation of hardenability of low alloy structural cast steel. Journal of Achievements in Materials and Manufacturing Engineering, 2009, vol. 37, no. 2, pp. 480–485.
- Gojic M., Kosec B., Anzel I., Kosec L., Preloscan A. Hardenability of steels for oil industry. Journal of Achievements in Materials and Manufacturing Engineering, 2007, vol. 23, no. 2, pp. 23–26.
- Hadi S., Widiyono E., Winarto W., Noor D.Z. EMS-45 Tool Steels Hardenability Experiment using Jominy ASTM A255 Test Method. IPTEK: The Journal for Technology and Science, 2013, vol. 24, no. 1, pp. 7–12.
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