Do you know the factors that limit stretch bending processing in production? Next, the editor will provide you with a brief analysis, let's take a look together.

 

There are two main factors that restrict stretch bending processing in production: one is stretch bending fracture, and the other is excessive deformation of cross-sectional dimensions. The first two aspects to consider when determining the bending process parameters for Yuanhao profiles are these two aspects. In addition, minimizing the amount of elastic recovery is also an important basis for selecting bending process parameters. The component that bears the combined action of axial tension and bending moment is called a tension bending component, which includes eccentric tension components and tension rod components with lateral loads. The application of tension bending components in steel structures is relatively rare. For tension bending members, if the bending moment is not large and they mainly bear the axial tension, their cross-sectional form is the same as that of general axial tension rods. Under the combined action of tension and bending moment, the appearance of plastic hinges in the section is considered as the ultimate bearing capacity.

 

In the process of edge bending, improper selection of processing parameters can cause instability and wrinkling on the web plate, which is also an important factor to consider. Extruded profiles are considered a special type of sheet metal material, which has a dimension in one direction that is much smaller than the dimensions in the other two directions. Therefore, during the forming process, it can usually be regarded as being completed under plane stress state.

 

For bending parts with high precision requirements, large length and curvature radius requirements, and small lateral dimension requirements, they can be bent on a dedicated bending machine. When bending, the entire thickness of the sheet is subjected to tensile stress, resulting in only elongation deformation. The deformation caused by rebound after unloading is small, making it easy to ensure accuracy.

 

That's all for the factors that limit stretch bending processing in production mentioned above. I hope it's helpful to everyone.