弯曲成形过程中，毛坯在外载荷的作用下会产生塑性和弹性两种形式的变形。一

During the bending process, the blank will be deformed in two forms, plastic and elastic, under the action of external loads. <br>Once the external load is removed, the resulting elastic deformation will disappear immediately, while the plastic deformation will continue to be maintained. <br>Due to the existence of elastic deformation of the part, the shape and size of the part will deform in the opposite direction to the loading direction, and this deformation is springback. <br>The factors affecting the size of the springback are more complex. To ensure quality control in the springback process, it is necessary to analyze its influencing factors.

In the process of bending forming, the blank will produce plastic and elastic deformation under the action of external load.<br>Once the external load is removed, the elastic deformation will disappear immediately, while the plastic deformation can continue.<br>Due to the existence of elastic deformation, the shape, position and size of parts will produce deformation opposite to the loading direction, which is rebound.<br>The influence factors of springback are complex. To ensure the quality control in the springback process, it is necessary to analyze its influencing factors.

In the process of bending, the blank will produce plastic and elastic deformation under the action of external load. Once the external load is removed, the elastic deformation will disappear immediately, and the plastic deformation can continue to be maintained. Due to the elastic deformation of parts, the shape and position dimensions will produce the deformation opposite to the loading direction, and this deformation is springback. The influencing factors of springback are complicated. To ensure the quality control in the springback process, it is necessary to analyze its influencing factors.