Sheet metal bending process: principle, process and application

Sheet metal bending process is an important metal processing technology that is widely used in many fields such as aviation, automotive, electronics and home appliances. The process makes sheet metal into parts or assemblies of the desired shape and size by utilizing the plasticity of the metal material and going through a series of bending, forming, welding and other processes. The following is a detailed introduction to the sheet metal bending process:

First. Basic Principle

The basic principle of the sheet metal bending process is to utilize the plastic deformation of the metal to produce parts or components of the required shape and size. In the bending process, first of all, the compressive stress formed within the material, and then through the shear stress and bending stress to produce bending deformation, so that the material undergoes plastic bending, and ultimately form the desired shape of the workpiece. This process can be realized by different molds and bending equipment to meet different needs and processing requirements.

Secondly. Process Flow

The flow of sheet metal bending process mainly includes the following steps:

Selection of suitable plate: The first step in the sheet metal bending process is to select a suitable plate. General selection of thickness between 0.5-2mm, material q235a or 45 steel and other hot-rolled profiles. These materials have good plasticity and processing performance, to meet the processing needs of different shapes and sizes of parts.

Unloading: Calculate the unloading amount (i.e. unfolding length) of the sheet according to the drawing requirements, and then cut the material according to the unfolded length for spare parts. This step is the key to ensure that the dimensions of the parts are accurate.

Drawing and positioning: according to the drawn positioning line, arrange the materials in order and fix them. This step is to ensure that the position of the parts in the bending process is stable, to avoid errors.

Bending: Use the bending equipment to bend the plate. In the bending process, you need to select the appropriate bending process and parameters according to the size, shape, material and other specific workpiece.

Welding and grinding: the necessary welding and grinding of the molded parts. Welding is to ensure the structural integrity and stability of the parts, while grinding is to improve the surface quality and aesthetic appearance of the parts.

Third. Applications and Advantages

Sheet metal bending process has a wide range of applications in automobile manufacturing, aerospace, electronic equipment and other fields. It can not only reduce the cost of sheet metal parts, improve production efficiency and material utilization, but also realize the mass production of similar sheet metal parts. In addition, through the sheet metal bending process to produce parts with neat corners and flat surfaces, can improve the appearance of the product quality and assembly quality, thereby enhancing the brand image.

In conclusion, sheet metal bending process is an important metal processing technology with a wide range of application prospects and significant advantages. With the continuous development and progress of science and technology, sheet metal bending process will be applied and developed in more fields.