Page 431 - THREADING CATALOG

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Machining Data for Solid Carbide Drills - IC908 D=3.0-20.0 mm
Tensile Cutting Feed (mm/rev) vs. Drill Diameter
Strength Hardness Material Speed Vc
ISO Material Condition [N/mm ] HB No. (1) (m/min) Ø3-5 Ø5.1-8 Ø8.1-12 Ø12.1-16 Ø16.1-20
2
<0.25% C annealed 420 125 1 80-120 0.10-0.18 0.15-0.25 0.2-0.30 0.20-0.35 0.25-0.40 THREAD DRILLING
≥0.25% C annealed 650 190 2 80-110 0.10-0.18 0.15-0.25 0.2-0.30 0.20-0.35 0.25-0.40
non-alloy
steel and cast <0.55% C quenched and 850 250 3 70-100
tempered
steel, free
cutting steel annealed 750 220 4 0.10-0.20 0.15-0.28 0.2-0.35 0.20-0.38 0.25-0.42
≥0.55% C quenched and 1000 300 5
tempered
annealed 600 200 6
P low alloy and cast steel 930 275 7 70-90 0.10-0.18 0.15-0.25 0.2-0.30 0.20-0.35 0.25-0.40
(less than 5% of quenched and 1000 300 8 60-80 0.10-0.18 0.15-0.25 0.2-0.30 0.20-0.35 0.25-0.40
alloying elements) tempered
1200 350 9 50-70 0.10-0.20 0.15-0.28 0.2-0.35 0.20-0.38 0.25-0.42
annealed 680 200 10 60-80 0.10-0.20 0.15-0.28 0.18-0.35 0.20-0.38 0.25-0.42
high alloyed steel, cast
steel and tool steel quenched and 1100 325 11 50-70 0.10-0.15 0.12-0.20 0.14-0.25 0.16-0.30 0.18-0.32
tempered
ferritic /
stainless steel martensitic 680 200 12 25-75 0.04-0.10 0.05-0.15 0.05-0.18 0.08-0.20 0.10-0.20
and cast steel
martensitic 820 240 13 25-75 0.04-0.10 0.05-0.15 0.05-0.18 0.08-0.20 0.10-0.20
stainless steel austenitic,
M 600 180 14 25-75 0.04-0.10 0.05-0.15 0.05-0.18 0.08-0.20 0.10-0.20
and cast steel duplex
ferritic / 180 15 85-105 0.15-0.25 0.20-0.35 0.25-0.45 0.30-0.50 0.35-0.55
pearlitic
gray cast iron (GG)
pearlitic /
martensitic 260 16 75-90 0.15-0.25 0.20-0.35 0.25-0.45 0.30-0.50 0.35-0.55
K ferritic 160 17
nodular cast iron (GGG)
pearlitic 250 18 65-80 0.12-0.20 0.15-0.25 0.20-0.35 0.25-0.40 0.30-0.45
ferritic 130 19
malleable cast iron
pearlitic 230 20
not 60 21 70-300
aluminum-wrought alloys hardenable 0.10-0.25 0.15-0.35 0.25-0.45 0.30-0.50 0.35-0.55
hardenable 100 22 70-200
not
≤12% Si hardenable 75 23 70-300 0.07-0.18 0.12-0.25 0.20-0.35 0.25-0.45 0.30-0.50
aluminum-
cast alloys hardenable 90 24
high
>12% Si 130 25
N temperature
>1% Pb free cutting 110 26
brass 90 27
copper alloys
electrolytic 100 28
copper
duroplastics,
non metallic fiber plastics 70 Shore D 29
hard rubber 55 Shore D 30
annealed 200 31
Fe based
high hardened 280 32
temperature annealed 250 33
alloys Ni or Co hardened 350 34
S based cast 320 35
pure 400 190 36
titanium alloys alpha+beta
alloys, 1050 310 37 15-35 0.02-0.07 0.04-0.10 0.06-0.12 0.08-0.15 0.08-0.18
hardened
hardened 55 HRC 38 40-70 0.06-0.10 0.08-0.12 0.10-0.14 0.12-0.16 0.14-0.18
hardened steel
H hardened 60 HRC 39
chilled cast iron cast 400 40
cast iron hardened 55 HRC 41
As a starting value, the middle of the recommended machining range should be used, then (according to wear results),
Conditions can be changed in order to optimize performance.
• When using external coolant supply only, reduce cutting speed by 10%
• Use internal coolant supply when machining austenitic stainless steel
(1) For workpiece materials list, see pages 443-472
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