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HF UNI - Variable Helix and unequal pitch - 45° chamfer
CUTTING PARAMETERS
INFO
HF840
Material Group
ISO 513
P1
P2
M1
P3
K1
P4
M2
K2
K3
P5
M3
M4
K4
S1
S4
S2
S3
Hardness/Rm ≤ 700 N/mm² 700-1000 N/mm² ≤ 35 HRC ≤ 40 HRC
ap x ae 2D x 0.2D 2D x 0.2D 1.5D x 0.1D 1.5D x 0.1D
Vc (m/min)
TROCHOIDAL
ap x ae
190-230
D
(mm) n
(rpm)
3
4
5
6
8
10
12
14
16
18
20 11680
8760
7010
5840
4380
3500
2920
2500
2190
1950
1750
≤ D5
130-150
fn
Vf
(mm/rev) (mm/min)
0.035
0.046
0.058
0.068
0.088
0.105
0.120
0.135
0.150
0.165
0.183
1640
1620
1610
1580
1530
1470
1400
1350
1310
1290
1280
n
(rpm)
100-120
fn
Vf
(mm/rev) (mm/min)
7430
5570
4460
3720
2790
2230
1860
1590
1390
1240
1110
0.032
0.042
0.052
0.061
0.079
0.095
0.108
0.122
0.135
0.149
0.164
1.5D x 0.1D
940
930
920
900
880
840
800
770
750
740
730
n
(rpm)
5840
4380
3500
2920
2190
1750
1460
1250
1090
970
880
650
650
640
630
610
590
560
540
520
510
510
n
(rpm)
fn
Vf
(mm/rev) (mm/min)
3180
2390
1910
1590
1190
960
800
680
600
530
480
1.5D x 0.1D
NOTES:
Down milling CNC programming is required.
“ae” value max 0.2xD - “T” value max 0.1xD.
The use of end mill with diameter 30-40% smaller than the width of the slot is recommended.
The cutting conditions are based on CNC programming with medium dynamic speed.
With lower CNC dynamic speed, use the same cutting conditions or reduce the cutting speed Vc.
With higher CNC dynamic speed, reduce the “T” value by approximately -30 -50% and apply the maximum available cutting speed Vc.
ae
TYPHOO
N
PU-HPU
50-70
fn
Vf
(mm/rev) (mm/min)
0.028
0.037
0.046
0.054
0.070
0.084
0.096
0.108
0.120
0.132
0.146
TYPHOO
N
TA-HTA-4
HTA
S5
0.039
0.051
0.063
0.074
0.096
0.116
0.132
0.149
0.165
0.182
0.201
490
490
480
470
460
440
420
400
400
380
390
TYPHOO
N
SUH
TYPHOO
N
ALH
TYPHOO
N
HRC
TYPHOO
N
SUH MIN
I
TYPHOO
N
HL
C-SD-TA
LFTA
R1 Cutter radius
R2 Half of slot width
T
SUTA
Programming width of cut
ae Actual width of cut
Y (+)
HSS-HSS
/CO
DRILLS
Y
X (+)
G2
T
MDTA
HF VH/U
P
MEF
ALU
MEX
UH
HSS/CO
-HSSP
END MIL
LS
CARBIDE
BURRS
PARAMETERS SUGGESTED WITH HIGH POWER MILLING CHUCK AND STABLE MACHINING CONDITION
393