Terms For The Rotating Tool - Optimum Optiturn TU 2506 Operating Manual

OPTIMUM
M A S C H I N E N - G E R M A N Y
3.22

Terms for the rotating tool

Cutting direction
Tool
Clearance surface
Img.3-29: Geometrically
determined cut-
ter for the separa-
tion process
Clearance surface

positive clearance angle
Img.3-31: Cut A - A, posi-
tive cutter
Wedge angle
Chip angle
Clearance angle
Clearance angle minor cutting edge
Setting angle
Setting angle minor cutting edge
Point angle
Depth of cut:
Feed
In most cases the setting angle is depending on the work piece. A setting angle of 45° to 75° is
suitable for roughing. setting angle of 90° to 95° (no tendency to chattering) is suitable for plan-
ing.
The corner angle serves as passing from the major cutting edge to the minor cutting edge. To-
gether with the infeed it determines the surface quality. The corner radius must not be selected
too large as this might result in vibrations.
GB TU2506 | TU2506V | TU2807 | TU2807V
Page 128
Chip thickness
Chip surface
Chip surface

Chip angle

Positive




n


n

ap (mm)
f (mm/U)
Original operating instructions
f
ap


Img.3-30: Cut and chip size
Chip surface

Clearance surface

positive clearance angle
Img.3-32: Cut A - A, nega-
tive cutter
The following factors influence the
chip break when turning
Setting angle
Corner radius
Cutting edge geometry
Cutting speed:
Depth of cut:
Feed

n

Chip angle
negative

r
Vc
ap
f
Version 1.0.1 2014-05-16