Operation
Version 1.0 - 2020-12-22
135
Translation of original instruction
TU2506VB
EN
T
U
2506V
B_GB
_4.
fm
4.16.2 Types of cutting form levels
They are needed to influence the chip drain and the chip shape in order to achieve optimum
chipping conditions.
Examples of types of cutting form levels
Img.4-19: Cutting form level
Img.4-20: Cutting form level with fillet
b = 1.0 mm to 2.2 mm
t = 0.4 mm to 0.5 mm
b = 2.2 mm with fillet
For infeeds of 0.05 to 0.5 mm per revolution and depths of cut of 0.2 mm to 3.0 mm.
The different apex angles (
) of the cutting form level need to conduct the chip.
Img.4-21: Positive apex angle for planing
Img.4-22: Neutral apex angle for planing and rough-
ing
Img.4-23: Negative apex angle for roughing
The ready-ground major cutting edge must be slightly ground with a grindstone for the plan-
ing.
For the roughing, a small chamfer must be produced with the grindstone in order to stabilize
the cutting edge against striking chips (b
f
= f x 0.8).
b
t
b
j
