Page 188 - UNION

part. Technical DaTa INch Technical DaTa INch part.
B B

da514 - high Speed cutting da542 - general Speed cutting

endmill NON-ALLOYED STEELS ALLOY STEELS endmill
& MATERIAL ALLOY STEELS · CAST IRON HARDENED STEELS MATERIAL HEAT RESISTANT STEELS HARDENED STEELS HARDENED STEELS &
drill HARDNESS HRc 30 ~ HRc45 HRc 45 ~ HRc 55 HARDNESS HRc 30~HRc 40 HRc 45~HRc 50 HRc 50~HRc 55 drill
STRENGTH 1000 ~ 1500N/mm 2 1500 ~ 2000N/mm 2 STRENGTH 1000~1250N/mm 2 1250~1750N/mm 2 1750~2000N/mm 2
DIAMETER(inch) RPM FEED RPM FEED DIAMETER(inch) RPM FEED RPM FEED RPM FEED
R.012×.024 30000 23.60 30000 11.80 R1/32×1/16 97000 8.30 13800 19.90 13600 17.90
R.0155×.031 27000 25.60 27000 15.00 R1/16×1/8 8000 14.60 10200 34.60 9800 33.50
R.020×.040 25000 25.60 25000 15.70 R3/32×3/16 5840 18.10 7500 34.60 7200 33.50
R.0235×.047 24000 26.40 24000 16.50 R1/8×1/4 5040 19.70 6900 36.20 6500 34.60
R.031×.062 23000 27.60 23000 16.90 R5/32×5/16 3540 20.90 5600 33.10 5300 31.50
R3/16×3/8 3020 22.40 4850 31.50 4650 30.30
RPM = rev. / min.
FEED = inch / min. D < .040 D < .040 R1/4×1/2 2350 20.90 4350 31.50 4150 30.30
Ae : 0.05×D Ae Ae : 0.05×D RPM = rev. / min.
Ap : 0.15×D Ap : 0.1×D FEED = inch / min.
D ≧ .040 D ≧ .040 Ae Ae : D1/16 ~ D1/8=0.05×D
Ae : 0.075×D Ae : 0.05×D Ae : D1/16 ~ D1/4=.008 D3/16 ~ D5/16=.010
Ap : 0.15×D Ap Ap : 0.15×D D5/16 ~ D1/2=.012 D3/8 ~ D1/2=.012
Ap : 0.2×D Ap : 0.1×D
Ap

da542 - high Speed cutting

endmill endmill
ALLOY STEELS
MATERIAL HARDENED STEELS HARDENED STEELS
HEAT RESISTANT STEELS
HARDNESS ~HRc 45 HRc 45~HRc 50 HRc 50~HRc 55
STRENGTH 1500N/mm 2 1250~1750N/mm 2 1750~2000N/mm 2
DIAMETER(inch) RPM FEED RPM FEED RPM FEED
R1/32×1/16 18400 21.90 13800 28.90 13600 30.10
R1/16×1/8 16800 31.50 10200 55.10 9800 51.20
R3/32×3/16 16800 56.70 7500 52.00 7200 49.20
R1/8×1/4 16800 72.80 6900 55.10 6500 53.10
R5/32×5/16 12600 89.40 5600 49.20 5300 45.30
R3/16×3/8 10930 96.10 4850 45.30 4650 43.30
R1/4×1/2 8400 82.70 4350 44.50 4150 41.30
drill drill
RPM = rev. / min.
FEED = inch / min. Ae : D1/16 ~ D1/8=0.052×D
Ae : D1/16 ~ D1/4=.008 Ae D3/16 ~ D5/16=.010
D5/16 ~ D1/2=.012 D3/8 ~ D1/2=.012
Ap : 0.052×D Ap : 0.052×D
Ap

86 Union Materials cUttinG tools 87