Types Of Cutting Form Levels - Optimum Optiturn TU 2807VB Betriebsanleitung

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
b

Img.4-19: Cutting form level
b = 1.0 mm to 2.2 mm
t = 0.4 mm to 0.5 mm
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.4-23: 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
Operation
Version 1.0 - 2020-12-22
t
j
= f x 0.8).
f
Translation of original instruction
b

Img.4-20: Cutting form level with fillet
b = 2.2 mm with fillet

Img.4-22: Neutral apex angle for planing and rough-
ing
TU2807VB EN
125