This implies shaping plate metal by a set of bend actions. This operation is carried out on rolling line, where a number of rolling stands feed the plate stock. Every single one of the rolling stands possesses a roll often mentioned as a roll die, which are to be placed on each side of a plate. Different sizes and forms of roll dies are applied in various positions. A roll die can be located on or under the plate, alongside or at a certain angle. Sheet plate gets deformed when pushed in roll stands by die, then it gets bent. Every rolling stand carries out a task in bend process to obtain the required design. Maintenance of rolling dies include regular lubrication to avoid frictions of dies and plates. This will also bring to long outwear of dies. Rolling line may also be suitable for such manufacturing actions as punch and shear.
Roll formation is applied in turning a plate metal into various cross-sectioned shapes such as open and pipe-shaped profiles. This technique is also suitable to form lengthy metal pieces possessing 1-2 inch breadth and 0.004-0.125 inch density. Though breadth up to 5 feet and thickness 0.25 inches are possible. Roll formation allows creating such solid profiles as panels, tracks and so on, which are widely applied in buildings and HVAC areas.
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