Sandvik Coromant Heat resistant super alloys - Manual (Page 117)

115
Hole making in the aerospace industry – aero engine
3. Chamfering
Insert 327R06-1212045-CH 1025
Body 327-12B30EC-06
v
c
75 m/min
f
z
0.1 mm/tooth
2. Finish boring
Alternative 1
CoroMill Plura R216.24 – Ø 12.00 mm
R216.24-12050CAK26P 1620
v
c
40 m/min
f
n
0.2 mm/r
1. Drilling
CoroDrill Delta-C R846 – Ø 11.00 mm
R846-1100-30-A1A 1220
v
c
25 m/min
f
n
0.1 mm/r
OPERATION A
Ø 12 mm, hole 20 mm deep
1. Drilling
T-Max 424.10 DHD, Ø 110 mm
Insert grade B2D1
v
c
43 m/min
f
n
0.23 mm/r
2. Rough boring – hole Ø 119.5 mm
CoroTurn SL – Silent Tools boring bar, Ø 80 mm
DNMG 150608-23 1105
v
c
40 m/min
f
n
0.2 mm/r
a
p
2.0 mm
3. Finish boring – hole Ø 120.0 mm
CoroTurn SL – Silent Tools boring bar, Ø 80 mm
DNMG 150608-SM 1105
v
c
40 m/min
f
n
0.2 mm/r
a
p
0.25 mm
OPERATION B
Ø 120 mm, hole 1500 mm deep
2. Finish boring
Alternative 2
Boring bar R429
Insert TCEX 06T1 02L-F 1105
v
c
35 m/min
f
n
0.08 mm/r