Do you know how to deal with the crack of the drawing stamping parts?

During the production and processing of stretch stamping parts, there will be tension cracks. Do you know why tension cracks occur? How to deal with this situation?

When the tensile stress on the cylinder wall exceeds the strength limit of the material during the processing of tensile stamping parts, the product will crack, and the crack usually appears at the cylinder wall slightly above the fillet of the punch,. The factors affecting the tensile crack of products include: tensile properties of materials, diameter and thickness of materials, tensile coefficient, fillet radius of concave convex die, blank holder force, friction coefficient, etc.