In the processing industry, stamping and stretching parts are a common stamping and stretching parts. There are many processing plants of this type on the market, and of course, the quality will be uneven. If customers choose improperly, it will cause losses. Therefore, it is very important to choose reliable stamping and stretching parts manufacturers.

How to prolong the service life of stamping and stretching parts?

1. After the stamping and stretching parts are installed and used, the stamping parts must be strictly inspected, the dirt must be cleaned, and the guide sleeve and die of the stamping parts must be carefully inspected for good lubrication

2. According to the installation steps of the mold, install the mold and the mold on the turntable to ensure that the direction of the mold and the mold is consistent, especially the stamping parts in the required direction (non-circular and square) are larger. Pay attention to prevent assembly error and recoil

3. When the punch and die edges of stamping parts are worn, they shall be stopped from use and polished in time. Otherwise, the wear degree of die edge will expand rapidly, die wear will accelerate, and the quality of stamping parts and die life will be reduced

4. Regularly check the press turntable and die mounting base to ensure the coaxial accuracy of turntables on both sides

5. When installing the mold, the mold operator shall use soft metal (such as copper, aluminum, etc.) to make operation tools to avoid damaging the tensile parts during installation.

The die structure is reasonable, the manufacturing accuracy is high, the heat treatment effect is good, the punch of drawing stamping parts is selected correctly, the installation accuracy is high, and the correct use, maintenance and maintenance of the die are also important factors. Therefore, it is necessary to eliminate the adverse effects of various factors on the service life of deep drawing stamping parts and take effective measures to improve their service life.

In the production process of drawing parts, there will be many bad problems. Next, we analyze these problems.

1. Influence of stretching depth

The distribution of material flow resistance along the die opening is directly related to the drawing depth. Above the curve position of concave and convex, the excessive stretching depth of the stretching part can cause the uneven distribution of deformation resistance and wrinkle, which should be prevented as far as possible.

2. Adjust the blank holder force

When wrinkles occur evenly around the workpiece, it should be judged as the lack of pressing force, which can be removed by gradually increasing the pressing force. When the stretching part stretches the conical part and hemispherical part, most of the data is in the suspended state at the beginning of stretching. It is easy to wrinkle the side wall, so in addition to increasing the blank holder force, the precision stamping parts processing plant should also choose to increase the pick-up and extension rib to increase the inner diameter tensile stress of the plate and remove the wrinkle.

3. Influence of radius of die fillet

If the fillet radius of the die of the drawing part is too large, the blank flows into the die, and the tortuous deformation occurs through the fillet of the die. The smaller the tortuous resistance is. The smaller the zigzag resistance, the simpler the occurrence of wrinkling. The smaller the radius of the die, the greater the tortuous resistance of the tortuous deformation, the less simple wrinkling, but it is easy to form the cracking and galling of the tensile part.

Through a large number of production practice experience, it is concluded that the main reason for the wrinkling of tensile parts is the accumulation of materials and the excessive movement speed of local materials in the tensile process. When formulating the solution, the precision stamping parts processing plant should consider adjusting the corresponding structure of the die, which will play a good role.

The above is about the service life and bad problems of stamping and stretching parts. Stamping and stretching parts are widely used in daily life. In order to appropriately prolong the service life of stamping and stretching parts, we also need careful maintenance. I hope the above contents are helpful to readers.