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HF UNI - Variable Helix and unequal pitch - 45° chamfer
CUTTING PARAMETERS
INFO
HF445
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 0.1D 1.5D x 0.1D 1.5D x 0.1D
Vc (m/min)
TROCHOIDAL
160-200
D
(mm) n
(rpm)
6
8
10
12
14
16
20 5040
3780
3030
2520
2160
1890
1510
110-130
fn
Vf
(mm/rev) (mm/min)
0.066
0.085
0.102
0.117
0.131
0.146
0.177
1320
1290
1240
1180
1130
1100
1070
n
(rpm)
80-100
fn
Vf
(mm/rev) (mm/min)
3450
2590
2070
1730
1480
1290
1040
0.059
0.077
0.092
0.105
0.118
0.131
0.160
810
790
760
730
700
680
660
n
(rpm)
2650
1990
1590
1330
1140
1000
800
560
540
520
500
480
470
450
n
(rpm)
fn
Vf
(mm/rev) (mm/min)
1590
1190
960
800
680
600
480
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
R1 Cutter radius
0.072
0.094
0.112
0.128
0.144
0.160
0.195
460
450
430
410
390
380
370
TYPHOO
N
SUH
TYPHOO
N
ALH
TYPHOO
N
HRC
TYPHOO
N
SUH MIN
I
TYPHOO
N
HL
C-SD-TA
R2 Half of slot width
T
TYPHOO
N
PU-HPU
50-70
fn
Vf
(mm/rev) (mm/min)
0.052
0.068
0.082
0.093
0.105
0.117
0.142
TYPHOO
N
TA-HTA-4
HTA
S5
Programming width of cut
ae Actual width of cut
LFTA
Y (+)
Y
X (+)
T
SUTA
HSS-HSS
/CO
DRILLS
G2
MDTA
HF VH/U
P
MEF
ALU
MEX
UH
HSS/CO
-HSSP
END MIL
LS
CARBIDE
BURRS
PARAMETERS SUGGESTED WITH HIGH PRECISION WELDON CHUCK AND STABLE MACHINING CONDITION.
FOR APPLICATION ON HIGH POWER MILLING CHUCK, PLEASE REFER TO HF444 PARAMETERS.
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