Name: Liaoning Super Group Construction Group Co., Ltd.
Super group hardware accessories store：
Doors and windows, stretch bending and pressboard workshop：
Address: middle section of South outer ring of Dashiqiao
When processing white steel building doors, it is easy to produce the following forming defects, which we should pay attention to from time to time.
1. The outer wall thickness of the bending deformation area of the profile is thinner.
2. The inner wall thickness of the bending deformation area increases and wrinkles.
3, cross section shape distortion;
Springback is an important factor to be considered in die design in stretch bending process. The final forming of stretch bending parts is largely affected by the springback after forming. Springback is mainly manifested by overall unloading rebound and trimming springback. When the springback exceeds the allowable value, the forming defects will affect the geometric accuracy of the bending parts. In order to control the springback of parts with relatively large bending radius after forming, the stretch-bending forming process can be adopted, which can make the formed parts have reasonable alignment allowance and reduce the workload of manual alignment. If the springback of parts is too large, the manual alignment can not be corrected. Resulting in scrap parts. Therefore, springback is an important factor that affects and restricts the forming of Ningbo stretch bending dies and stretch bending parts.