High scrap rate is a headache for Metal Stamping parts manufacturers. Because the profitability of the domestic hardware industry is already very low, if there is too much waste generated during the stamping process, there may be no profit or even loss. Therefore, it is extremely important to deal with the problem of high scrap rate of hardware stamping parts. The reasons for the occurrence of scrap products in stamped parts can be analyzed from the following aspects:

1. Poor quality of raw materials

Raw materials are the first guarantee for producing qualified stamped parts. If the hardness and surface of the raw materials do not meet the quality requirements, the corresponding scrap rate of stamped parts will definitely be too high. Especially for stamping parts with relatively large deformation, if the raw materials are not qualified, they will show phenomena such as cracking and damage. So, when purchasing raw materials, hardware stamping manufacturers must not be tempted by cheap prices and must find trustworthy and legitimate material suppliers.

2. Unqualified stamping mold equipment

The stamping die equipment does not meet the standards, resulting in poor cooperation between the upper and lower molds during stamping processing, leading to a high scrap rate. Stamping molds are the foundation for processing stamped parts, and equipment is crucial while ensuring that the molds are problem free. Don't think that equipment stamping molds are very simple, even small errors can lead to the production of stamped parts as scrap. When stamping equipment molds, the concentricity, clearance, flatness, and other factors of the upper and lower molds play a crucial role.

3. Mold shows wear and tear

Stamping molds may experience wear and tear or loose parts over long-term use, which can also lead to product scrap. There are many hardware stamping parts manufacturers who do not perform daily inspection and protection on the molds after the equipment is ready for production. They only remove the molds and briefly grind the cutting edges when there are large burrs. Little do they know that the wear of molds is not only the wear of the cutting edge, but also the wear of some mold accessories with use. After these accessories wear out, it will affect the accuracy of the entire mold.

4. The worker's operation is not standardized

The worker did not follow the equipment manual when operating the punch press, which may result in feeding errors.

5. Inaccurate positioning device

During the feeding process, inaccurate positioning of the mold equipment can cause problems in the cooperation and presentation of each process, as well as the presentation of waste products.

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