Page 70 - Osawa_Update_2023

HF UNI - Variable Helix and unequal pitch - Corner radius

CUTTING PARAMETERS
M4 N4
HF535T M1 N1 M2 M3 N3
N2
N5
M5 M6 N6 P4 S4
N3
N3
P1
N1
N2
S2
M3
M1 M2 M7 N7 S1 M3 M4 N4 P2 P3 S3 M2 N2 M5 N5
N1
N2
S5
S6
K4
Material Group P1 P2 S2 S7 H1 H1 P3 S3 M1 K2 K3 P5 M1 P6 M4 M2 N4 M3 N3 H4 H4 P3 P5 S5

P4
S1
S4
P7
H2 H2H3 H3
K1
N1
S2
P2
S3
ISO 513 P1 P4 S4
S1
K5 H5 H5H6 H6 S3
K6
P3
S2
P2
S1
K4
H1 H1H2 H2H7 H7
H2 H2H3 H3H5 H5
K1 K2 K7 K3 H3 H3H4 H4 K2 K3 K5
P1
Hardness/Rm ≤700 N/mm² 600÷1000 N/mm² K1 ≤35 HRC H2 H2H3 H3 ≤45 HRC
H1 H1H4 H4
K4
K2
K3
K1
H1 H1
ap x ae 3.5D x 0.05D 3.5D x 0.05D 3.5D x 0.05D 3.5D x 0.05D
Vc (m/min) 170÷190 100÷120 80÷100 60÷80
SIDE MILLING D fz fz fz fz
(mm) (mm/z) (mm/z) (mm/z) (mm/z)
10 0.100 0.100 0.080 0.072
12 0.120 0.120 0.100 0.090
16 0.150 0.150 0.130 0.117
20 0.150 0.150 0.150 M4 N4 0.135
N2
M1 N1 M2 M3 N3
M5 M6 N6 P4 S4
N5
N3
N2
N3
N1
M1 M2 M7 N7 S1 M3 M4 N4 P2 P3 S3 M2 M3 M5 N5
N2
S2
P1
M4
S5
S6
N2
K4
Material Group P1 S1 P7 S7 H1 H1 P3 S3 M1 K2 K3 P5 M1 P6 N1 M2 N4 M3 N3 H4 H4 P3 P5 S5

P2
H2 H2H3 H3
S2
S2
P2
S3
P4
S4
N1
K1
ISO 513 K5 P1 K6 P4 P2 S4 P3 S3
S1
H5 H5H6 H6
S2
K2
K7
K1 H1 H1H2 H2H7 H7 K3 H3 H3H4 H4 K2 K3 K5
H2 H2H3 H3H5 H5
K4
P1
S1
Hardness/Rm ≤700 N/mm² 600÷1000 N/mm² K1 ≤35 HRC ≤45 HRC
K4
H1 H1H4 H4
K2 H2 H2H3 H3
K3
K1
H1 H1
ap x ae 3.5D x 0.05D 3.5D x 0.05D 3.5D x 0.05D 3.5D x 0.05D
Vc (m/min) 170÷190 100÷120 80÷100 60÷80
TROCHOIDAL D fz fz fz fz
(mm) (mm/z) (mm/z) (mm/z) (mm/z)
10 0.100 0.100 0.080 0.072
12 0.120 0.120 0.100 0.090
16 0.150 0.150 0.130 0.117
20 0.150 0.150 0.150 0.135
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.
R1 Cutter radius
ae
R2 Half of slot width
T Programming width of cut
R2 ae Actual width of cut
R1

Y (+)
Y

X (+)
T
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