Page 380 - Catalogue-Osawa-2021

HF UNI - Variable Helix and unequal pitch - 45° chamfer

CUTTING PARAMETERS
INFO
HF440

Material Group P1 P2 P7 K1 P3 P4 M1 K2 K3 P5 M2 M3 K4 S1 S4 S2 S3 S5
ISO 513
Hardness/Rm ≤700 N/mm² 600÷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) 160÷200 110÷130 80÷100 50÷70
CARBIDE D fz fz fz fz
DRILLS
(mm) (mm/z) (mm/z) (mm/z) (mm/z)
3 0.032 0.028 0.025 0.035
PU-HPU
TA-4HTA TROCHOIDAL 4 0.042 0.037 0.033 0.046
5 0.052 0.047 0.041 0.057
SUH
ALH 6 0.061 0.055 0.049 0.067
HRC 8 0.079 0.071 0.063 0.087
SUH MINI 10 0.095 0.085 0.076 0.104
HL 12 0.108 0.097 0.086 0.119
HSD 14 0.122 0.109 0.097 0.134
C-SD-TA 16 0.135 0.122 0.108 0.149
20 0.164 0.148 0.131 0.181
ap x ae ≤ D5 1.5D x 0.1D 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.
HSS The cutting conditions are based on CNC programming with medium dynamic speed.
DRILLS 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.
LFTA R1 Cutter radius
ae
SUTA R2 Half of slot width
HSS-HSS/CO T Programming width of cut
R2 ae Actual width of cut
R1

Y (+)
Y

X (+)
CARBIDE
END-MILLS T
G2
MDTA
HF VH/UP
MEF
ALU
MEX/MH
UH/MH

HSS
END-MILLS

CARBIDE
BURRS

PARAMETERS SUGGESTED WITH HIGH POWER MILLING CHUCK AND STABLE MACHINING CONDITION
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Libro 1.indb 378