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RAD-6 (MRX)
Helical Milling Conditions
• Sinking depth (h) when helical milling should be under Max D.O.C. in table below. Formula for Sinking Depth (h) Ds (Trajectory diameter of GRADES A
cutter's center line) B
Sinking angle (with trajectory of the center line of tool) should be under max h = Ds tan LINEUP / INSERTS 45 / 70 LEAD C
(maximum ramping angle) in cutting conditions on page J20. Ds=Dh-D D
(h should be under D.O.C.) E
• Feed rate should be under 70% of cutting conditions on page J18. F
( should be under max) G
H
• Climb milling is recommended. Requirements for Removing Core J
K
Inch Metric [ When Cutting Dia. Dh1DhDh2 ] O
P
Inch Min. Metric Min. Dh Center core part R
Tool Spec. Tool Spec. Cutting remains after machining. T
Cutting Min. Dia. for Max. (Not removable with
Tool Min. Dia. for Max. Cutting flat bottom Cutting the same cutter)
Insert Dia. Cutting flat bottom Cutting Max Dia. facing Dia.
Max Dia. facing Dia. Tool D.O.C. Dh1 Dh2 Dh3
D.O.C. Dh1 Dh2 Dh3 Insert Dia. 4 20 24 30
16 75 LEAD
0.625 0.157 0.787 0.935 1.171 Dh
RD..08 0.750 0.157 0.984 1.185 1.421 RD..08 20 4 26 32 38 [ When Cutting Dia. Dh2DhDh3 ]
1.000 0.157 1.457 1.685 1.921 25 4 36 42 48 Center core part
remains after
0.750 0.197 0.945 1.106 1.421 20 5 26 30 38 Dh machining. 90 LEAD
(Removable by
1.000 0.197 1.299 1.606 1.921 25 5 33 40 48 traversing with
the same cutter)
RP..10 1.250 0.197 1.811 2.106 2.421 RP..10 32 5 47 54 62
1.500 0.197 2.323 2.606 2.921 40 5 63 70 78 HIGH FEED
2.000 0.197 3.307 3.606 3.921 50 5 83 90 98 D
2.500 0.197 4.331 4.606 4.921 63 5 109 116 124 Refer to table on the left for Dh1~Dh3.
1.250 0.236 1.654 2.028 2.421 32 6 43 52 62 Helical Milling Factors MULTI-FUNCTION SLOT MILLS RADIUS / BALL-NOSE OTHER APPLICATIONS TOOL HOLDING SPARE PARTS
1.500 0.236 2.165 2.528 2.921 40 6 59 68 78
RP..12 2.000 0.236 3.150 3.528 3.921 RP..12 50 6 79 88 98 D (Cutter Diameter)
2.500 0.236 4.173 4.528 4.921 63 6 105 114 124
3.000 0.236 5.157 5.528 5.921 80 6 139 148 158
4.000 0.236 7.165 7.528 7.921 100 6 179 188 198 Ds (Trajectory diameter
of cutter's center line)
1.500 0.315 1.890 2.370 2.921 40 8 51 64 78
DhCutting Diameter
2.000 0.315 2.874 3.370 3.921 50 8 71 84 98 Ds
RP..16 2.500 0.315 3.858 4.370 4.921 RP..16 63 8 97 110 124 (Sinking Depth)
3.000 0.315 4.882 5.370 5.921 80 8 131 144 158 Sinking Angle
h
4.000 0.315 6.890 7.370 7.921 100 8 171 184 198
5.000 0.315 8.740 9.244 9.795 125 8 221 234 248
Above value is based on the clearance of 0.039" between the tool and the workpiece.
C ase Studies 1.378” H13 Tool Steel Slant Face
(47~49HRC)
304 Stainless Steel 3.150”
• Mold Parts
• Nozzle Parts 2.559” 4.331” • Vc = 410 sfm 14.961” 9.055”
• Vc = 370 sfm • fz=0.010 ipt
• fz = 0.006 ipt 4.5 Times • D.O.C. ae = More than
• D.O.C. ae = Longer Tool Life Double Tool Life
0.039~0.079" 0.394"
0.039" 2.559" 450 pcs / Edge • Dry 2 pcs with Stable Machining TECHNICAL
• Dry • MRX20-S20-08-2T
• MRX100R-12-9T-M
(2 Flutes)
(9 Flutes) • RDGT0803M0ER-GM
• RPGT1204M0ER-SM
(PR1525)
(PR1535)
PR1525
PR1535
Conventional 100 pcs / Edge Conventional 1pc with Unstable Tool Life
Cost savings with 4.5 times longer tool life with 1.5 times more insert edges. Conventional tool only machined 1 workpiece due to unstable tool life, but the INDEX
MRX prevented burr formation and improved surface finish. MRX doubled the tool life with stable machining.
(User Evaluation) (User Evaluation)
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