Stainless steel is a commonly used steel, and many products are made from this steel. However, to use this kind of steel to make the products that you need, you need to process it. One of the processes is called stainless steel processing and bending, which is the process that needs to be used in many products. The process also has certain requirements, and it is necessary to follow a certain method. The common one is to carry out according to the characteristics of the stainless steel itself.

Due to the high yield point and high hardness of the stainless steel itself, the cold work hardening effect is remarkable, and the characteristics of the stainless steel plate when bending are as follows:

1) Because the thermal conductivity is worse than ordinary low carbon steel, the elongation is low, resulting in a large deformation force;

2) Stainless steel sheets have a strong tendency to rebound when compared with carbon steel during bending;

3) The stainless steel plate has a lower elongation than the carbon steel, and the bending angle R of the workpiece is larger than that of the carbon steel when bending, otherwise there is a possibility of cracking;

4) Due to the high hardness of the stainless steel plate, the cold work hardening effect is remarkable. Therefore, when selecting the bending tool, the tool steel with heat treatment hardness of 60HRC or more should be selected, and the surface roughness should be one order of magnitude higher than that of the carbon steel bending tool.

According to the above characteristics, in general:

1. Under the unit size, the thicker the sheet, the greater the bending force required, and the margin of bending force should be larger when the bending equipment is selected as the thickness increases;

2. Under the unit size, the greater the tensile strength, the smaller the elongation, the greater the bending force required, and the larger the bending angle should be;

3. In the case of designing the thickness of the plate and the bending radius, according to experience, the unfolding size of a curved workpiece is the right angle plus two minus the thickness of the plate, which can fully meet the design accuracy requirements, and calculate the expansion amount according to the empirical formula. Simplify the calculation process and greatly improve production efficiency;

4. The greater the yield strength of the material, the greater the elastic recovery. In order to obtain the angle of 90 degrees of the bending member, the angle of the required pressing knife should be designed to be smaller. Compared with the same thickness of carbon steel, the stainless steel has a large bending angle. This should pay special attention to the occurrence of crushing cracks and affect the strength of the workpiece.

From the above, it can be seen that the processing and bending of stainless steel is not a simple matter, and it is necessary to carry out careful calculation on the basis of understanding the stainless steel to obtain the desired processing result. At the same time, it also requires a wealth of experience to be able to do the bending process, otherwise it may encounter various problems in the processing process, resulting in cumbersome processing.