When most metal stamping plants process stamping parts, the scrap rate is often too high. Now the competition in the stamping industry is very fierce, and the profits have been greatly compressed. If the scrap rate remains high, a batch of orders may be completed, which may not only have no profits, but also lose money. It is particularly important to solve the problem of high scrap rate of metal stamping parts.

1. The quality of raw materials is not up to standard

Raw materials are the first guarantee for processing qualified stamping parts. If the hardness and surface of raw materials do not meet the quality requirements, the scrap rate of corresponding stamping parts will be too high. Especially for some stamping parts with large deformation, if the raw materials are unqualified, there will be cracking, damage and other phenomena. Therefore, when purchasing raw materials, we must not be greedy for cheap, but must find a reliable regular material supplier.

2. The installation of stamping die is unqualified

The installation of stamping die does not meet the specification, resulting in the poor cooperation between the upper die and the lower die during stamping processing, resulting in high scrap rate. Stamping die is the foundation of processing stamping parts. On the premise of ensuring that there is no problem with the die, installation is very important. Don't think the installation of stamping die is very simple. Even small errors may lead to the production of stamping parts as scrap. When installing the stamping die, the concentricity, clearance and flatness of the upper and lower die play a vital role.

3. The die is worn

In the long-term use of stamping die, wear or loose parts will also lead to product scrapping. There are many stamping plants that do not carry out daily inspection and maintenance of the die after installing the die for production. Only when the burr is large, the die is removed and the knife edge is simply polished. As everyone knows, the wear of the die is not only the blade wear, but also some die accessories will wear with use. After these accessories are worn, they will affect the accuracy of the whole die.

4. Nonstandard operation of workers

When operating the punch, the worker did not operate according to the installation manual, or there was an error in feeding.

5. The positioning device is inaccurate

During the feeding process, the inaccurate mold positioning device will cause problems in the coordination of each process and waste products.

As each kind of metal stamping parts need different stamping dies, there are specific reasons for all of them. When the scrap rate of stamping parts is too high, you might as well find the reasons from these aspects first.