An Influence Function Method to Analyse Thin Strip Rolling with Work Roll Edge Contact

2009 ◽  
Author(s):  
Z.Y. Jiang ◽  
H.T. Zhu ◽  
D.B. Wei ◽  
A.K. Tieu
Keyword(s):  
Influence Function ◽  
Function Method ◽  
Work Roll ◽  
Thin Strip ◽  
Strip Rolling ◽  
Edge Contact ◽  
Influence Function Method

AN INFLUENCE FUNCTION METHOD ANALYSIS OF COLD STRIP ROLLING

2008 ◽  
Vol 22 (31n32) ◽  
pp. 5728-5733
Author(s):  
Z.Y. JIANG ◽  
D.W. WEI ◽  
A.K. TIEU
Keyword(s):  
Cold Rolling ◽  
Influence Function ◽  
Function Method ◽  
Rolling Force ◽  
Work Roll ◽  
Thin Strip ◽  
Traditional Theory ◽  
Influence Function Method ◽  
New Findings ◽  
Strip Crown

An influence function method has been developed to simulate the asymmetric cold rolling of thin strip with work roll kiss at edges. The numerical simulation model was obtained based on the deformation compatibility of the roll system in rolling and lateral directions. The strip plastic deformation has been considered in the formulation, which is significantly different from the traditional theory of metal rolling. The rolling mechanics and crown of the strip with work roll edge kiss, which are new findings for cold rolling of thin strip, are obtained. A comparison of the rolling force, roll edge kiss force and the strip crown after rolling has been conducted for various cross shear regions in the roll bite. Results show that the calculated strip crown is in good agreement with Ameasured value, and the rolling force and strip crown decrease with an increase of cross shear regions, as well as the work roll edge kiss force and edge wear decrease. The friction also has an influence on the profile of the rolled thin strip.

Modelling of work roll edge contact in thin strip rolling

2004 ◽  
Vol 155-156 ◽  
pp. 1280-1285 ◽  
Author(s):  
Z.Y. Jiang ◽  
H.T. Zhu ◽  
A.K. Tieu ◽  
W.H. Sun
Keyword(s):  
Work Roll ◽  
Thin Strip ◽  
Strip Rolling ◽  
Edge Contact

Lateral Distribution of Pressure in Thin Strip Rolling

1970 ◽  
Vol 92 (2) ◽  
pp. 453-459 ◽  
Author(s):  
H. A. Kuhn ◽  
A. S. Weinstein
Keyword(s):  
Rolling Force ◽  
Contact Region ◽  
Three Dimensional ◽  
Work Roll ◽  
Lateral Distribution ◽  
Thin Strip ◽  
Strip Rolling ◽  
Edge Contact ◽  
Strip Shape

A method is presented for the determination of the lateral distribution of pressure in thin strip rolling. A simplified three-dimensional analysis of elastic deformation of the rolls is developed for use in the method. Pressure in the roll edge contact regions (in underface rolling), as well as in the roll-strip contact region, is considered. In the case of four-high, planetary, and Sendzimir-type mills, the lateral distribution of pressure between the work roll and backup rolls is also found. Calculated results indicate lateral pressure distributions which have peak values at each edge of the strip with a minimum at the center. The degree of this nonuniformity depends on roll geometry and configuration. Partition of the total rolling force between roll-strip contact and roll edge contact in underface rolling is also determined. Since interroll heat transfer is dependent on contact area, and hence, pressure, the results can also aid the determination of lateral temperature distributions in the rolls. In addition, the method is potentially useful for a study of the influence of roll geometry and configuration on strip shape.

Rolling Force Calculation for Strip Cold Rolling Based on Influence Function Method

2014 ◽  
Vol 633-634 ◽  
pp. 791-794 ◽  
Author(s):  
Hai Zhou ◽  
Jin Lan Bai
Keyword(s):  
Cold Rolling ◽  
Influence Function ◽  
Function Method ◽  
Rolling Force ◽  
Force Model ◽  
Strip Rolling ◽  
Influence Function Method ◽  
Roll Flattening ◽  
Calculation Results ◽  
Force Calculation

The rolling force calculation procedure of strip cold rolling is developed based on influence function method, with consideration of the couple of roll flattening model and rolling force model. With the procedure total rolling force and the distribution of rolling force per width of each pass for HC mill are calculated using sampling data obtained from actual strip rolling. Comparing the calculation results with actual measured value, it is shown that the calculated total rolling forces are similar to actual data, and the distribution of rolling force per width is consistent with the actual status. It proved that the calculation method introduced in this paper is an effective method to calculate rolling force, and it can be used in the process control of strip cold rolling mill.

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