Several solutions for side scratches on stamping and drawing parts

Recently, I received an order from an old customer of an electronic equipment factory. It is a stainless steel square stamping and drawing part. Because it is an appearance part, the surface quality is relatively high, and the surface must be free of scratches. The product is generally a deep-drawn part with a side length of 200mm and a height of 30mm. Due to the film processing, all the tops can basically guarantee the surface quality. In the early stage of the mold trial, the side has been scratched, and the problem was solved after research and analysis , Here we press to share with you the solutions to such problems. First, whether the gap design of the stamping die is reasonable. When designing the gap of the stamping die, it is necessary to comprehensively consider the size, material, thickness, and stretch height of the product. Unreasonable die gap design will also lead to scratches. Second, the stamping and drawing process. For products with higher height or smaller diameter, at the beginning of the design of the mold, it is necessary to calculate the number of drawing processes required. If the process design is too small, it will also cause scratches. Third, the influence of mold surface roughness. For stainless steel products, the roughness of the mold surface also has a great influence on the surface quality of the product. It is best to polish the surface of the mold. Fourth, the choice of stamping equipment. Since stamping and drawing parts are a process of severe deformation, it is best to use a hydraulic press for processing. The speed of the mechanical punching process is too fast, and the surface quality of the product may not meet the requirements during processing. Fifth, the selection of raw materials. For stamping and drawing parts, when choosing raw materials, you must choose soft materials that are easy to deepen. For some special products, annealing should be considered while drawing. In our actual production and processing, we must observe and analyze more, so that we can solve problems better and faster when we encounter problems. In fact, the processing of stamping and drawing parts is not that complicated, as long as we are good at summarizing and learning. Processed stamping and drawing parts satisfying customers. Previous post: The quotation of stamping factory must learn to be targeted and give up