Sandvik Coromant Parting and grooving - users guide - Manual (Page 24)

22
Pip free parting
To avoid or minimise pips use right hand
style or left hand style ground inserts with
smallest possible front angle that gives an
acceptable component.
Inserts with 5° front angle are available in
CF, CM and CR geometries. Inserts with
10° and 15° front angle are available in CS
geometry.
Note that a large front angle reduces
pips, but will not produce a straight cut and
give poorer surface finish and shorter tool
life.
For straight parting and high stability use
a screw clamp holder with the shortest
overhang, a
r
. A reinforced toolholder will
increase the stability even more.
Reinforced blade.
Screw clamp holder
with short a
r
.
Parting – small
diameter bars
When parting off small diameter bars, ensure
the lowest possible forces are generated.
Use inserts with smallest possible width and
sharpest edges, i.e. CS or CF geometries.
The precision ground CoroCut XS hav-
ing widths down to 0.7 mm and 15° front
angled for pip-free parting are ideal for these
types of applications.