Sandvik Coromant Heat resistant super alloys - Manual (Page 29)

27
CNMG/DNMG RCMX/RO SNMG/CNMX SNMG
CNMG/DNMG TF/GF
a
p
a
p
a
p
a
p
a
p
a
p
S05F H13A
Wear causing poor
surface with worn
insert.
Surface integrity tests have shown that
S05F, applied at v
c
40 m/min, gives
extremely consistent deformation depth
and residual stress profiles, when compar-
ing new and worn inserts. The dimensional
accuracy and lack of any coning/taper is
also seen to eliminate the need for re-cut-
ting or spring passes. Both of these are the
result of minimal wear on the trailing edge
compared to other grades.
Surface roughness, Ra mm
Feed, mm/r
= New insert
= Worn insert
Surface finish
comparison
45º
GC1105 applications – notch demanding
S05F applications – PD demanding
45º 45º
75º
95º
45º
3
2.5
2
1.5
1
0.5
0
0.15 0.25 0.15 0.25
CNMG 120408-23 H13A
CNMG 120408-SF S05F