Groups die in childbirth, care should be taken to guard punching convex the die edge acuity. Punching edge wear, the material suffered tensile stress will increase, thereby stamping parts breeds occurred vitality tumblebars increasing trend distorted.

Blanking clearance consistent rationale or uneven gap also produce stampings turn feed slandered need to be repressed.

3, the end of the punch blade repair beveled or curved. This blanking force mitigation invalid facilities. The blanking force remission can increase the tensile force to the die side, which arrived restrained from stampings tumblebars distorted results.

4, additional extreme pressure to condescend. Pair the discharge insert the binder of thicker size (normal unloading inserts the thick H +0.03 sister), in order to increase the pressure on the die side, which the restraint punching stampings turned material, distorted.

Reasonable mold intend. Progressive die cutting measures shelved with or affect the precision Stamping. For stampings subtle small part of cutting, a general first set aside a larger area of punching cutting, and then shelved the smaller areas punching cutting to exacerbate blanking force Stamping.

6, attention to materials, overcome conservative mold administered layout. Out content material in the discharge board gap (ie, when the mold is closed, the stripper plate and die fit, and to accommodate the material at the stripper plate and die gap material thickness t-0.03 to 0.05 mm). So, stamping stripper plate smooth motion, the material can be pressed. The key to forming part of, the stripper plate set made ​​to insert layout to facilitate the the planning brief stamping incurred stripper plate pressure feed area mill (pressure) loss, and I can not concern material.