Kyocera - Каталог фрезерование 2017 ENG
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MRF / MRFW BALL-NOSE END MILL
Applicable Inserts ( B21) Recommended Depth of Cut
Insert Part Number Part Number Depth of Cut (in) Applications
RDFG 08FR MRF08-S12
Top Face D.O.C. Pf Pf AGRADES
Mark 10FR 0.008 (Max 0.012) 0.031 B
C
12FR Standard Neck MRF10-S12 0.008 0.039 D
E
Top Face Shown 16FR MRF12-S12 0.020 0.047 FLINEUP / INSERTS 45 / 70 LEAD
• Align the Top Face Mark of both insert and toolholder. 20FR MRF16-S20 0.020 0.063 G
25FR MRF20-S25 0.039 0.079 H
MRF25-S32 0.039 0.098 J
MRF08-S12-130 0.008 (Max 0.012) 0.031 K
O
Long Neck MRF10-S16-150 0.008 0.039 P
R
MRF12-S16-160 0.020 0.047 T
MRF16-S20-160 0.020 0.063 J3
MRF20-S25-180 0.039 0.079
MRF25-S32-200 0.039 0.098 D.O.C.
Carbide Carbide MRFW08-S08 0.008 (Max 0.012) 0.031 75 LEAD
Long Standard
Neck Neck MRFW10-S10 0.008 0.039
MRFW12-S12 0.020 0.047
MRFW08-S08-130 0.008 (Max 0.012) 0.031
MRFW10-S10-140 0.008 0.039 90 LEAD
MRFW12-S12-150 0.020 0.047
For 8mm, Holder may be broken because of overload if D.O.C. exceeds 0.012".
Recommended Cutting Conditions (At Cutting Dia. D)
Workpiece Insert 8mm 10mm 12mm HIGH FEED
Material Grades
Vc (sfm) fz (ipt) Vc (sfm) fz (ipt) Vc (sfm) fz (ipt) Vc (sfm) fz (ipt)
Carbon Steel (RPM) Vf (ipm) (RPM) Vf (ipm) (RPM) Vf (ipm)
Alloy Steel PR915 330~660 0.004~0.012 MULTI-FUNCTION SLOT MILLS RADIUS / BALL-NOSE OTHER APPLICATIONS TOOL HOLDING SPARE PARTS
Mold Steel PR915 260~590 0.004~0.012 490 0.008 490 0.008 490 0.008
Stainless Steel PR915 160~490 0.004~0.008 (5,970) (94.095) (4,770) (75.197) (3,980) (62.598)
Cast Iron PR915 160~490 0.004~0.008
PR915 330~660 0.008~0.016 430 0.008 430 0.008 430 0.008
Workpiece (5,170) (81.496) (4,140) (65.354) (3,450) (54.331)
Material
330 0.006 330 0.006 330 0.006
Carbon Steel (3,980) (46.850) (3,180) (37.402) (2,650) (31.496)
Alloy Steel
Mold Steel 330 0.006 330 0.006 330 0.006
Stainless Steel (3,980) (46.850) (3,180) (37.402) (2,650) (31.496)
Cast Iron
490 0.02 490 0.012 490 0.012
(5,970) (140.945) (4,770) (112.598) (3,980) (94.095)
Insert 16mm 20mm 25mm
Grades
Vc (sfm) fz (ipt) Vc (sfm) fz (ipt) Vc (sfm) fz (ipt) Vc (sfm) fz (ipt)
(RPM) Vf (ipm) (RPM) Vf (ipm) (RPM) Vf (ipm)
PR915 330~660 0.004~0.012
PR915 260~590 0.004~0.012 490 0.008 490 0.008 490 0.008
PR915 160~490 0.004~0.008 (2,980) (46.850) (2,390) (37.402) (1,910) (29.921)
PR915 160~490 0.004~0.008
PR915 330~660 0.008~0.016 430 0.008 430 0.008 430 0.008
(2,590) (40.551) (2,070) (32.677) (1,660) (25.984)
330 0.006 330 0.006 330 0.006
(1,990) (23.622) (1,590) (18.898) (1,270) (14.961)
330 0.006 330 0.006 330 0.006
(1,990) (23.622) (1,590) (18.898) (1,270) (14.961)
490 0.012 490 0.012 490 0.012
(2,980) (70.472) (2,390) (56.299) (1,910) (45.276)
Actual Cutting Speed (Vd) Conversion Coefficient Table
Vd varies depending on D.O.C. and slant face angle.
Vd can be obtained by dividing the conversion coefficient into the recommended cutting speed.
Model Tool Dia. (D) 8mm 10mm 12mm
D.O.C. (t: in) 0.004" 0.008" 0.004" 0.008" 0.008" 0.020"
1.00 1.00 1.00 1.00
15° 1.00 1.00 1.05 1.03 1.04 1.01
1.20 1.14 1.16 1.07
D (Tool Dia.) Slant Face 30° 1.05 1.02 1.51 1.38 1.42 1.24
Angle 45° 2.24 1.92 2.02 1.60
(°) 60° 1.18 1.12 5.06 3.57 3.92 2.50
75°
° (Slant Face Angle) 1.47 1.34
2.15 1.82
90°(Horizontal Plane) 4.48 3.22
Tool Dia. (D) 16mm 20mm 25mm
t (D.O.C.) D.O.C. (t: in) 0.008" 0.020" 0.020" 0.039" 0.020" 0.039" TECHNICAL
1.00 1.02 1.00 1.01
15° 1.00 1.00 1.02 1.00 1.03 1.00
1.12 1.06 1.14 1.08
d (Actual Cutting Dia.) Slant Face 30° 1.05 1.01 1.34 1.21 1.38 1.25
Angle 45° 1.18 1.10 1.83 1.53 1.93 1.62
(°) 60° 1.47 1.30 3.20 2.29 3.57 2.55 INDEX
75° 2.14 1.73
90°(Horizontal Plane) 4.48 2.87
e.g.) S uppose tool dia. 8mm, D.O.C. = 0.039", slant face angle 90°: The actual cutting speed Vd for carbon steel machining,
when Vc is 490sfm at the full cutter diameter, Vd can be obtained by calculating: Vd = 490 4.48 = 109.4sfm
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