Roll surface temperature in the arc of contact has been directly measured by a temperature sensor embedded on the roll surface during the hot rolling of aluminum sheet. Influences of the rolling parameters such as initial sheet temperature, reduction ratio, and lubrication condition on the roll surface temperature have been investigated. The roll surface temperature abnormally increases in the entrance part of the contacting arc when the rolled sheet seized on the roller with no lubricant. By comparison with the roll surface temperature simulated by one-dimensional finite difference method, the heat transfer coefficient between the roll and the sheet surfaces was estimated to be approximately 400 kW/m2K. A simulation of the abnormal increase in the roll surface temperature in the case of seizure has been performed by adding the heat generation in the surface layer of the sheet caused by friction on the boundary surface.

1.
Chen
B. K.
,
Thompson
P. F.
, and
Choi
S. K.
,
1992
, “
Temperature Distribution in the Roll-Gap During Hot Flat Rolling
,”
Journal of Materials Processing Technology
, Vol.
30
, pp.
115
130
.
2.
Chen
W. C.
,
Samarasekera
I. V.
, and
Hawbolt
E. B.
,
1992
, “
Fundamental Phenomena Governing Heat Transfer During Rolling
,”
Metallurgical Transactions A
, Vol.
24A
, pp.
1307
1320
.
3.
Hlady, C. O., Samarasekera, I. V., Hawbolt, E. B., and Brimacombe, J. K., 1993, “Heat Transfer in the Hot Rolling of Aluminum Alloys,” Proc. Int. Symp. on Light Metals Processing and Applications, C. Bickert et al., ed., 32nd Ann. Conf. of Metallurgists, CIMM, Quebec City. PQ, Canada, pp. 511–522.
4.
Hlady
C. O.
,
Brimacombe
J. K.
,
Samarasekera
I. V.
, and
Hawbolt
E. B.
,
1995
, “
Heat Transfer in the Hot Rolling of Metals
,”
Metallurgical and Materials Transactions B
, Vol.
26
, pp.
1019
1027
.
5.
Kalpakjian, S., 1991, Manufacturing Process for Engineering Metals, Addison-Wesley, p. 351.
6.
Nakao, M., and Takatsuka, K., 1984, Theory and Practice of Flat Rolling, The Iron and Steel Institute of Japan (in Japanese), pp. 141–144.
7.
Sheu
S.
,
Hecor
L. G.
, and
Richmond
O.
,
1998
, “
Tool Surface Topographies for Controlling Friction and Wear in Metal-Forming Processes
,”
ASME JOURNAL OF TRIBOLOGY
, Vol.
120
, pp.
517
527
.
8.
Shoji
M.
,
1978
, “
Study on an Inverse Problem of Transient Heat Conduction
,”
Trans. Jpn. Soc. Mech. Eng.
, (in Japanese), Vol.
44
, No.
381
, pp.
1633
1643
.
9.
Shoji, M., 1995, Heat Transfer Textbook, University of Tokyo Series on Advanced Mechanical Engineering 6, University Tokyo Press (in Japanese), pp. 102–115.
10.
Yanagimoto, J., Wakamatsu, H., and Kiuchi, M., 1996, “Thermal Analysis in Hot Rolling/3,” Proc. of 47th Japanese Joint Conf. for the Technology of Plasticity (in Japanese), pp. 71–72.
11.
Yoneyama
T.
,
Kimura
H.
,
Sugie
A.
,
Miyaji
K.
, and
Hori
T.
,
1995
, “
Measuring System of Temperature and Heat Flux on the Roll Surface in Cold Rolling of Aluminum Sheets
,”
Journal of the JSTP (in Japanese)
, Vol.
36
, No.
410
, pp.
236
241
.
12.
Yoneyama, T., Fujita, A., Yoshida, S., Hoshino, I., and Kokubo, M., 1996, “Measurement of Temperature and Heat Flux on the Roll Surface in Hot Rolling of Aluminum Sheets,” Proc. of the 5th Int. Conf. on Technology of Plasticity, Vol. 1, pp. 67–70.
13.
Yoneyama, T., Fujita, A., Asaoka, H., Kimura, H., Hoshino, I., and Kokubo, M., 1997, “Heat Scratch in the Hot Rolling of Aluminum Sheets and Its Relation with the Roll Surface Temperature,” Proc. of the 1st Int. Conf. on Tribology in Manufacturing Processes ’97, Gifu, K. Dohda et al., ed., Gifu, Japan, pp. 397–402.
This content is only available via PDF.
You do not currently have access to this content.