Kaltenbach KPS Series, Manual

Page: 111 / 268

KPS SERIES
Technical Documentation
M-UK-KPS--06
11/02/03 Page 111 of 138
KALTENBACH
6.2.2 Punch-Die Clearance
Next to the important fact of having a suitable machine, it is even more important to
have the right tools with the correct cutting clearance.
NOTICE
Use sharp Punches and Dies with correct Clearance Only
A correct cutting clearance results in
-
a long usage-time of the tools
-
is preventing deformation of the material and bending of the products
-
the thicker the material the bigger the cutting tolerance should be.
The cutting tolerance is difference between punch and die diameters. The cutting
tolerance is determined by 8-10% of the material thickness to be processed.
Example:
Material
thickness 20 mm
Punch (1) diameter 26 mm
Cutting tolerance 10% 2,0 mm
Die (2) diameter 28 mm