What is the reason for the increase in scrap during stamping?

When metal stamping and drawing manufacturers are carrying out stamping processing, sometimes there will be an increase in waste. The high rejection rate will affect the production efficiency and production cost, and it does not conform to the concept of energy saving and environmental protection. Only by reasonably reducing the scrap rate can the enterprise develop better. So what is the reason for the increase in scrap? Let's find out. 1. The quality of steel plate raw materials is not good. Raw materials are the first guarantee for processing qualified metal stamping parts. If the hardness and appearance of the raw materials do not meet the quality requirements, the corresponding stamping parts scrap rate will definitely be too high, and metal stamping and drawing manufacturers need Find a reliable and regular material supplier. 2. The stamping die equipment is unqualified. The stamping die equipment does not meet the specifications. The upper die and the lower die cannot cooperate well during the stamping process, resulting in a high rejection rate. On the premise that there is no problem with the mold, the equipment is very important. Even a small error may cause the produced metal stamping parts to be scraps. When equipment stamping molds, the concentricity, gap, flatness, etc. of the upper and lower molds all play a very important role. 3. Inaccurate positioning equipment During the feeding process, inaccurate mold positioning equipment will cause problems in the cooperation of each process, and will also lead to a high rejection rate. 4. Die wear In the long-term use of stamping die, wear and tear or loose parts will affect the accuracy of the entire die and cause the product to be scrapped. 5. Irregular operation of workers. When operating the punching machine, the workers did not follow the equipment manual, or the feeding error occurred. [Recommended recommendation] Learn more: What conditions should a good stamping and drawing manufacturer have? Learn more: How to ensure the quality of automobile stamping parts Learn more: How to maintain automobile stamping parts