Following some guidelines when designing a component for Fineblanking can substantially
improve the cost and quality of the finished part. Inside and outside radius specifications are critical to producing fineblanked components.
The following diagrams show the recommended design radii. They are divided
into three ranges, depending on part difficulty:
A) simple - very long tool life
B) medium - long tool life
C) difficult - satisfactory tool life
For range C), the tensile strength of the material should
not exceed 600 N/mm2 (40 tsi).
For values outside the range C), the tool life drops considerably.
|
Limits of the Geometrical Shape - Corner Radii
