What is rolling? What is the rolling principle?

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What is rolling? What is the rolling principle?

Update Time:2022/5/11

Rolling is by virtue of the friction of the upper and lower rotating rolls, the metal material is dragged between the rolls, and at the same time rely on the roll to exert pressure for continuous compression deformation, get the required shape of the processing method. In other words, it makes use of the friction between the rolled piece and the roll to attract the rolled piece to the roll for continuous rolling, so that the cross section area of the rolled piece decreases and the length increases.

Usually in the rolling process, the two rolls are the main drive, and the diameter is equal, the roller surface circumference speed is the same; The speed of rolled parts is balanced at the roller and the roller. The rolled parts are not affected by any external force except by the roll. The contact friction of the upper and lower roller surfaces is the same, and the deformation along the high direction (i.e. thickness) and wide direction of the rolled section is completely symmetric with the flow of metal particles. The performance of rolled pieces is even. Rolling process is a commonly used process to produce titanium and titanium alloy plates, bars, pipes and profiles, etc.

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