In actual processing, you also need to consider the influence of factors. Correct the radius of curvature of the workpiece appropriately. <br><br>Springback <br>Due to the elastic deformation, springback occurs after the sheet is rolled, and the radius of curvature will increase. Therefore, when rolling, we need to increase the down force and reduction. Because <br><br>work hardening <br>is cold plastic deformation, the strength and hardness of the plate will increase while the plasticity and toughness decrease. This requires increasing the pressing force and the amount of pressing. <br><br>For the yield limit of the sheet, <br>we take the ordinary rolling machine as an example. The working capacity of the bending machine is designed according to the yield limit of the plate as 235Mpa. If the material changes and the yield limit increases, the reduction force and reduction amount must be increased. <br>There are many factors that also affect the radius of curvature. We should make some corrections based on the actual situation. <br>Through the analysis and research of the pressing force and the amount of pressing, we can also control the actual rolling process. These provide references for worker operations and also provide theoretical basis for automatic control.
正在翻译中..