Rolls Geometry Calculating Mathematical Model for Rotational Bar Surface Drawing

Abstract:

The problem of round-rolled surface products improving quality by reducing roughness and waviness is solved. Traditionally, grinding is used to improve the surface quality, but at the same time new defects appear in the form of cracks, tinge colours and the abrasive particles in-filtration into the surface layer. Surface pressure processing instead of grinding is not associated with such defects, therefore, it is proposed to use a transverse rolling. Rolling rational profile for transverse rolling on round-rolled surface was theoretically determined. Analytical dependences were obtained for rolls in cage with support rings calibration calculations. Such calibration use ensures uniform deterioration of roll and rings bearing surfaces, as well as the rolls balance with their one-sided load during rolling. A parametric analysis of the deformation conditions effect on the rolls geometry was performed. The conditions under which rolls profile can be limited to a circle or a straight line were considered. The obtained results were used in rolls profiling for drawing the rolling surface in laboratory and industrial conditions.

• Periodical: Materials Science Forum (Volume 989)
• Pages: 629-635
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.989.629
• Online since: May 2020
• Authors: Aleksey Antimonov, Nadezhda Pushkareva*
• Keywords: Bar Calibration, Round Metal-Rolling, Surface Quality, Transverse Rolling

References

[1] A.G. Suslov, Inzheneriia poverkhnosti detalei - rezerv v povyshenii konkurentosposobnosti mashin – Inzheneriia poverkhnosti. Prilozhenie k zhurnalu Spravochnik. Inzhenernyi zhurnal, [Part surface engineering - a reserve in improving the competitiveness of machines], Mashinostroenie, Moskva, 2001, no. 4.

[2] V. G. Shcherbinskii, Tekhnologiia ul'trazvukovogo kontrolia svarnykh soedinenii [Technology of ultrasonic testing of welded joints], Tisso, Moskva, (2003).

DOI: 10.14489/td.2014.08.pp.009-012

[3] GOST 24507-80. Non-destructive Testing. Forgings from ferrous and non-ferrous metals. Ultrasonic methods of slow defection.

[4] A. I. Tselikov, P. I. Polukhin, Mashiny i agregaty metallurgicheskikh zavodov. Tom 3. Mashiny i agregaty dlia proizvodstva i otdelki prokata [Machines and units of metallurgical plants. Volume 3. Machines and units for the production and finishing of steel], Metallurgiia, Moskva, (1988).

[5] GOST 2789-73. Surface roughness. Parameters and characteristics.

[6] M.E. Egorov, V.I. Dement'ev, V.L. Dmitriev, Tekhnologiia mashinostroeniia (2-e izd) [Engineering technology], Vysshaia shkola, Moskva, (1976).

[7] GOST 14955-77. Quality round steel with special surface finishing. Specifications.

[8] M.L. Bernshtein, Atlas defektov stali [Atlas of steel defects], Metallurgiia, Moskva, (1979).

[9] GOST 18296-72. Surface working. Terms and definitions.

[10] S.A. Zaides, Tekhnologicheskie protsessy poverkhnostnogo plasticheskogo deformirovaniia: monografiia [Technological processes of surface plastic deformation: monograph], Izd-vo IrGTU, Irkutsk, (2007).

[11] L. G. Odintsov, Uprochnenie i otdelka detalei poverkhnostnym deformirovaniem: Spravochnik [Hardening and finishing of parts by surface deformation: Handbook], Mashinostroenie, Moskva, (1987).

[12] D. D. Papshev, Uprochnenie detalei obkatkoi sharikami [Hardening parts run-in balls], Mashinostroenie, Moskva, (1968).

[13] V.M. Braslavskii, Tekhnologiia obkatki krupnykh detalei rolikami [Technology running large parts rollers], Mashinostroenie, Moskva, (1976).

[14] V.M. Smelianskii, Mekhanika uprochneniia detalei poverkhnostnym plasticheskim deformirovaniem, [Mechanics of hardening of parts by surface plastic deformation], Mashinostroenie, Moskva, (2002).

[15] N.V. Oleinik, V.P. Kychin, A.L. Lugovskoi, Poverkhnostnoe dinamicheskoe uprochnenie detalei mashin [Surface dynamic hardening of machine parts], Tekhnika, Kiev, (1984).

[16] M.B. Bisk, I.A. Grekhov, V.B. Slavin, Kholodnaia deformatsiia stal'nykh trub [Cold deformation of steel pipes], Sredne-Ural'skoe knizhnoe izd-vo, Sverdlovsk, v.2, (1977).

[17] V.V. Smirnov, USSR Patent 398313. (1973).

[18] V.N. Kalabushev, B.P. Medvedev, V.I. Davydov, USSR Patent 685389. (1979).

[19] A.M. Antimonov, N.B. Pushkareva, Surface Pressure Treatment of Titanium Alloy Bars by Transverse Rolling, J. Materials Science Forum, 946(3) (2019) 744-749.

DOI: 10.4028/www.scientific.net/msf.946.744

[20] A.M. Antimonov, N.B. Pushkareva, Surface Pressure Treatment of Titanium Alloy Bars by Transverse Rolling, Russian Internet Journal of Industrial Engineering, 4(6) (2018) 39-43.

DOI: 10.4028/www.scientific.net/msf.946.744