A new instrumentation for the optical modelling of unstable rolling processes, a polarisation device, a rolling mill, and rolls fabricated from optical glass are described. The uniformity of the changes in contact stress during rolling with increasing back tension preceding strip slippage between the rolls is explored. It is shown that the methods for the determination offriction coefficient based on changes of the kinematics of the metal deformed zone caused by externalforces are unreliable.
MST/1890
Get full access to this article
View all access options for this article.
References
1.
FROCHTM. M.: in Thotoelasticity’, Vol. 2, 86-170; 1950, Moscow, Gostechizdat.
2.
ALEXANDROVA. Y. and AHMETZIANOVM. H.: in‘Polarization—optical methods of deformed body mechanics’, 149–156; 1973, Moscow, Izdatelstvo, Nauka.
3.
FOPPLEL. and MONHE.: in‘Practice of optical modelling’, 46–47; 1966, Novosibirsk, Izdatelstvo Nauka.
4.
KHAJIATF. A. and LANCASTERP. R.: J. Strain Anal.,1969, 4, (4), 245–260.
5.
KAZAKOVAR. V., NIKOLAEVV. A., and POLUHINV. I.: in‘Polarisation — optical method of stress investigation’, 366–371; 1966, Leningrad, Russia, Izdatelstvo, LSU.
6.
SHLOMCHACKG. G. and POLUHINv. P.: Polarization—optical installation for stress determination’, USSR Certificate no. 844999, information bulletin of inventions and discoveries no. 25, 7 July 1981, Moscow.
7.
SHLOMCHACICG. G.Izv. Akad. Nauk SSSR, Met., 1978, (6), 102-106.
8.
cHrzEncovU. M.: Metallurgia, 1970, 296.
9.
SHLOMCHACKG. G., FENG. A., and KUTSALV. G.kV. V.U.Z. Chernaya Metall., 1980, (3), 79-81.
10.
SHLOMCHACKG. G., FENG. A., and KUTSALV. G.V. V.U.Z. Chernaya Metall., 1980, (5), 61-65.
11.
BLANDD. and FORDH.: Proc. Inst. Mech. Eng., 1949, 144–159.
