rolling laps

Round rolls of a cylinder

Rolling (according to DIN 8586) is a production process from the group of rolling bending which in turn is one of bending. During rolling, the blank is moved between three rolls (sometimes two or more than three) to bend it.

A simple example: a rectangular sheet is rolled up, a cylinder is formed, the seam edges of which are subsequently welded.

The sheet metal bending machines are used in three different designs:

The characteristics of round rolls are the working widths and the deformable sheet thickness.

Standard data are 3 or 4 m working width and the ability to round 10 to 15 mm thick sheet metal.

An extremely large machine (now unused?) in Lille, France: a round roll with a working width of 6 m and a force of up to 150 mm thick sheet metal in a cold state or red-hot plates from neighboring annealing furnaces of 250 mm Thick warm round rolls.

The main application is container construction. Steel towers for wind power plants are also manufactured using this manufacturing process. There, sheets of up to about 80 mm thickness are rolled. The steel towers often have a slightly conical shape. Edit source text Weblinks Edit sourcetext Commons: Round rolls - collection of pictures, videos and audio files

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