Progressive die stamping
In the stamping process of progressive die, if the product has burr, it may be caused by the following reasons: A. blade wear; B. excessive gap, the effect of cutting edge research is not obvious; C. knife edge collapse angle; D. unreasonable gap, upper and lower offset or looseness; e. upper and lower dislocation.
Solutions: A. study the cutting edge; B. control the machining accuracy of punch and die or modify the design clearance; C. study the blade; D. adjust the blanking clearance to confirm the wear of the die hole or the machining accuracy of the molded part; e. replace the guide part or reassemble the die.