How to prevent the iron filings from falling off the stamping die trimming?

When trimming the die of stamping parts, a headache often occurs, that is, the phenomenon of iron filings. Especially in the periphery of the scrap knife of the lower mold, this situation will be more obvious. And this will have a great negative impact on the quality and appearance of stamping products, so we need to deal with it in time. First of all, we need to figure out what the specific reasons are. After analysis and inspection, we believe that the main problems are as follows: 1. The trimming edge is not vertical; 2. The stamping part does not match the mold surface; 3. The secondary shearing of the vertical edge trimming 4. The gap of the cutting edge exceeds the standard range; 5. The smoothness of the cutting edge is not ideal; 6. The second cut of the scrap knife; 7. The hardness of the cutting edge is not enough; 8. The cutting depth of the cutting edge is too deep. So, how to solve this problem? In view of the reasons listed above, we should mainly adopt the following measures: First, if iron filings are generated at the scrap knife position, then this is mainly caused by the poor process of the stamping tool, so the measures that can be taken are to Change the shape of the first 10 mm of the scrap edge of the upper die, replace it with the shape of the breakthrough edge, and mill the scrap edge of the lower die. If it is due to the inconsistent shape of the used template and the stamping part, or the unreasonable edge gap, then the measures that should be taken are: use the drawn plate buckle to study the surface of the edge mold, and adjust the upper and lower blades appropriately The gap between the mouth is adjusted, and the depth of the intake. Finally, in the process of vertical edge trimming, in order to ensure the service life of the stamping die as much as possible, we need to ensure that the fillet of the upper edge of the trimming is 3 mm larger than the fillet of the trimmed part, and the upper die trimming edge The vertical edge of the mouth and the vertical edge of the trimming piece should maintain an included angle of 10°. Related news: The characteristics of the main materials of stamping parts, the handling of common problems of stamping parts, the characteristics of scaffolding stamping parts and the importance of inspections