Details About Steel Roll Forming Machine
2016-06-21
Steel roll forming machine bends metal with complex process and many ingenious devices. Today we’ll talk about some details about this machine.
When steel roll forming machine bending a piece of sheet metal, the residual stress in the material will cause the sheet to spring back slightly after the bending operation. Due to this elastic recovery, it is necessary to over-bend the sheet a precise a amount to achieve the desired bend radius and bend angle. The final bend radius will be greater than initially formed and the final bend angle will be smaller. The ratio of the final bend angle to the initial bend angle is defined as the spring back factor, KS. The amount of spring back depends upon several factors, including the material, bending operation, and the initial bend angle and bend radius.
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