Why are the edges uneven during the processing of stamping and drawing parts?

The uneven edges during the processing of stamping and drawing parts are a relatively common quality problem. For metal stamping factories, it is relatively simple to solve. The precision core technical team has focused on precision metal stamping and metal insert injection molding for more than 30 years. The precision author will tell you how to solve it next. 1. The uneven edge is caused by the inconsistency of the intermediate point between the blank and the convex and concave die or the uneven material thickness, as well as the uneven corner radius of the die and the uneven gap between the convex and concave die (the corner radius of the die is too large, and the blank holder is separated from the blank holder in the final stage of deep drawing. Make sure that the material that has not crossed the rounded corners, the blanking ring will be pulled into the die to form edge wrinkles after being pressed into the die. 2. Solution Repositioning of the die, correct the corner radius of the die and the gap between the convex and concave die to make the size uniform Then put it into production (reduce the corner radius of the die or use an arc-shaped blank holder device to eliminate wrinkles). [Recommendation] Learn more: What are the methods for polishing the surface of stainless steel? Learn more: Manufacturing characteristics of automotive stamping parts molds Learn more: Precautions for designing continuous stamping die (2)