Page 928 - YG 2019

X-POWER X-POWER
END MILLS RECOMMENDED CUTTING CONDITIONS END MILLS RECOMMENDED CUTTING CONDITIONS

CARBIDE, 4 FLUTE BALL NOSE - MMC CARBIDE, 2 FLUTE MINIATURE BALL NOSE

RECOMMENDED EM960, EM865 SERIES
ae P
CUTTING MATERIAL NON-ALLOYED STEELS

ap CONDITIONS ALLOY STEELS HARDENED STEELS
CAST IRON
HARDNESS HRc30 ~ HRc45 HRc45 ~ HRc55
STRENGTH 1000 ~ 1500N/mm 2 1500 ~ 2000N/mm 2
DIAMETER RPM FEED RPM FEED
R.012 × .024 30000 23.6 30000 11.8
▶ ap=0.02×D1 R.0155 × .031
▶ ae=0.05×D1 27000 25.6 27000 15.0
R.020 × .040 25000 25.6 25000 15.7
R.0235 × .047 24000 26.4 24000 16.5
R.031 × .062 23000 27.6 23000 16.9

ap ap
D＜.040 D≧.040 D＜.040 D≧.040
EM093, EM097, EM673, EM864 SERIES ap=0.05×D ap=0.075×D ap=0.05×D ap=0.05×D
ae=0.15×D ae=0.15×D ae ae=0.1×D ae=0.15×D ae
■ NORMAL SPEED
RPM = rev./min.
P FEED = inch/min.
MATERIAL NON-ALLOYED STEELS ALLOYED STEELS
ALLOY STEELS HEAT RESISTANT HARDENED STEELS
CAST IRON STEELS
HARDNESS ~HRc30 HRc30 ~ HRc40 HRc45 ~ HRc65
STRENGTH ~1000N/mm 2 1000 ~ 1250N/mm 2 1500N/mm 2
DIAMETER RPM FEED RPM FEED RPM FEED
R3/32 × 3/16 21000 157.5 20000 157.5 7000 55.1
R1/8 × 1/4 17000 157.5 16000 137.8 6000 51.2 CARBIDE, MULTI FLUTE ROUGHING - SIDE CUTTING
R5/32 × 5/16 13000 137.8 12000 118.1 4500 43.3
R3/16 × 3/8 10500 118.1 10000 98.4 3500 39.4
R1/4 × 1/2 9000 110.2 8000 98.4 3000 37.4
R5/16 × 5/8 6000 110.2 5500 86.6 2000 31.5 EM666, EM156, EM832, EM814 SERIES
RPM = rev./min. P
FEED = inch/min.
MATERIAL NON-ALLOYED STEELS ALLOY STEELS ALLOY STEELS
ALLOY STEELS HEAT RESISTANT HEAT RESISTANT HARDENED STEELS HARDENED STEELS
CAST IRON STEELS STEELS
■ HIGH SPEED HARDNESS ~HRc30 HRc30 ~ HRc38 HRc38 ~ HRc45 HRc45 ~ HRc55 HRc55 ~ HRc65
2
P STRENGTH ~1000N/mm 2 1000 ~ 1200N/mm 2 1200` ~ 1400N/mm 2 1400 ~ 2000N/mm 2 2000N/mm ~
MATERIAL NON-ALLOYED STEELS ALLOYED STEELS DIAMETER RPM FEED RPM FEED RPM FEED RPM FEED RPM FEED
ALLOY STEELS HEAT RESISTANT HARDENED STEELS 1/4 15600 91.4 12400 33.1 8400 22.5 3400 10.3 2400 7.5
CAST IRON STEELS 5/16
HARDNESS ~HRc30 HRc30 ~ HRc40 HRc45 ~ HRc65 3/8 11600 91.4 9200 33.1 6300 22.5 2400 9.5 1800 7.1
7600
91.4
9200
2000
11.4
1300
22.5
33.1
7.5
5100
STRENGTH ~1000N/mm 2 1000 ~ 1250N/mm 2 1500N/mm 2 1/2 8000 94.5 6000 31.5 4200 22.5 1680 10.3 1200 7.5
DIAMETER RPM FEED RPM FEED RPM FEED
5/8 6000 94.5 4800 29.9 3300 20.1 1200 6.3 800 4.4
R3/32 × 3/16 28000 220.5 27000 208.7 11000 82.7 3/4 5200 91.4 4400 28.4 2700 16.6 1100 5.9 700 4.0
R1/8 × 1/4 23000 200.1 22000 192.9 9000 74.8 1 4800 85.1 3600 22.1 2400 14.2 1000 5.9 660 4.0
R5/32 × 5/16 18000 181.1 17000 169.3 7000 66.9
R3/16 × 3/8 14000 153.5 13000 145.7 5000 55.1
R1/4 × 1/2 12000 145.7 11000 137.8 4500 51.2 1.5D 1.0D
R5/16 × 5/8 9000 122.0 8000 118.1 3300 43.3
0.3D 0.05D
RPM = rev./min.
FEED = inch/min. RPM = rev./min.
FEED = inch/min.
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