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Deformation diagram of rolling process: During the rolling process, the flow diagram of the metal in the deformation zone in the height direction, width direction and rolling direction.
The flow of deformed metal particles is affected by the geometric characteristics of the deformation zone.
The high-direction compression deformation of the rolled piece mainly occurs in the back-slip area (see back-slip), and the width-direction deformation also mainly occurs in the back-slip area.
In the back-slip zone, the horizontal velocity of the deformed metal particles is lower than the horizontal component of the linear velocity of the roll, so the metal particles flow toward the entrance direction relative to the roll surface, forming a back-slip phenomenon.
In the front slip zone (see front slip), the horizontal speed of the deformed metal particles is higher than the horizontal component of the roller linear velocity, so the metal etching brass particles flow toward the outlet relative to the roll surface, forming a front slip phenomenon (see figure).
Since the length l of the deformation zone during the strip rolling process is generally smaller than the width B of the rolled piece, the frictional resistance to deformation in the length direction is less than the frictional resistance in the width direction, so that the flow of metal etching particles during the rolling process mainly occurs in the extension direction.
Link to this article：Deformation during rolling
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