Bending parts are the most common type of Metal Stamping parts for stamping parts manufacturers, but in practice, they often show that the shape and size of the processed products do not meet the drawing specifications. Why do the shapes and sizes of stamped bending parts not meet the specifications in daily stamping production?

1. Stamping the

Bending stamping die is a tool for bending stamping parts. Usually, the shape and size of the bending stamping part depend on the size of the working part of the stamping die. The finer the stamping die is made, the finer the shape and size of the bending part. In addition, the pressing equipment and positioning equipment used in the stamping die structure also affect the shape and size of the bending part.

2. Material, the different materials used by stamping parts manufacturers will also affect the shape and size of the bent parts. This is mainly due to two reasons: on the one hand, the mechanical properties of the material and the uneven distribution of the composition, the same sheet of bending stamping parts, due to the pressure and rebound values are different, resulting in errors in the shape and scale; on the other hand, the uneven thickness of the material will also make the bending stamping parts different in scale and shape.

3. Bending process

When the number of steps for bending stamped parts increases, the cumulative error caused by the errors of each step will also increase. In addition, the different order of organization before and after the process will also have a great impact on the scale. For example, for the bent parts with holes, the shape and orientation of the holes are much higher when punching before bending than when punching first and then bending.

4. Process operation, installation, adjustment of stamping dies, and proficiency in production operations will all have a certain impact. For example, the accuracy of feeding and the reliability of steel plate positioning will affect the shape and scale of the bent parts.

5. Punch

When bending, different types of punches, different tonnage sizes, and different working speeds will change the size of the bending parts. In addition, the size of the punch itself will also have a certain impact.

6. The bending part itself

The shape of the bent part is asymmetrical, or its external dimensions are large, which will cause large errors during the bending process.

Stamping parts manufacturers can pay attention to the above reasons in the actual operation process, which can largely avoid mistakes in bending parts.

This article is from EMAR Mold Co., Ltd. For more EMAR related information, please click: www.sjt-ic.com!