Page 430 - THREADING CATALOG

USER GUIDE
THREAD DRILLING ISO non-alloy Material Condition 420 [N/mm 2 ] 125 Hardness HB 1 2 Material No. (1) Speed Vc 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20

Machining Data for Solid Carbide Drills D=0.8-2.9 mm
Tensile Strength
Feed (mm/rev) vs. Drill Diameter
Cutting

Ø0.8-1.4
(m/min)
Ø1.5-1.9
Ø2.5-2.9
Ø2-2.4
<0.25% C
annealed
50-100
0.05-0.15
0.03-0.10
190
annealed
650
≥0.25% C
40-100
0.08-0.20
0.07-0.17
steel and
850
cast steel,
quenched and tempered
<0.55% C
free cutting
0.03-0.10
220
0.07-0.17
40-85
750
0.05-0.15
annealed
0.08-0.20
≥0.55% C
steel
0.08-0.20
0.03-0.10
300
quenched and tempered
0.07-0.17
40-85
0.05-0.15
200
annealed 1000 250 3 4 5 6 40-85 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
0.08-0.20
40-75
600
0.03-0.10
0.07-0.17
0.05-0.15
low alloy and cast steel
P 930 275 7 40-60 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
(less than 5% of
alloying elements) quenched and tempered 1000 300 8 40-60 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
1200 350 9 40-60 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
high alloyed steel, cast annealed 680 200 10 30-50 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
steel and tool steel quenched and tempered 1100 325 11 30-50 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
stainless steel ferritic / martensitic 680 200 12 20-35 0.03-0.06 0.04-0.08 0.05-0.10 0.06-0.10
and cast steel martensitic 820 240 13 20-35 0.03-0.06 0.04-0.08 0.05-0.10 0.06-0.10
stainless steel
M austenitic, duplex 600 180 14 20-35 0.03-0.06 0.04-0.08 0.05-0.10 0.06-0.10
and cast steel
ferritic / pearlitic 180 15 40-80 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
gray cast iron (GG)
pearlitic / martensitic 260 16 40-70 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
ferritic 160 17 40-95 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
K nodular cast iron (GGG)
pearlitic 250 18 50-95 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
ferritic 130 19 40-80 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
malleable cast iron
pearlitic 230 20 40-80 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
not hardenable 60 21 80-150 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
aluminum-wrought alloys
hardenable 100 22 80-150 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
not hardenable 75 23 80-150 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
aluminum- ≤12% Si hardenable 90 24 80-150 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
cast alloys
N >12% Si high temperature 130 25 80-150 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
>1% Pb free cutting 110 26 80-150 0.03-0.10 0.05-0.15 0.07-0.17 0.08-0.20
copper alloys brass 90 27 50-150 0.05-0.12 0.07-0.15 0.08-0.18 0.09-0.18
electrolytic copper 100 28 60-160 0.05-0.15 0.07-0.18 0.08-0.20 0.09-0.22
duroplastics, fiber plastics 70 Shore D 29
non metallic
hard rubber 55 Shore D 30
annealed 200 31 10-20 0.02-0.04 0.03-0.06 0.04-0.07 0.04-0.08
Fe based
high hardened 280 32 10-20 0.02-0.04 0.03-0.06 0.04-0.07 0.04-0.08
temperature annealed 250 33 10-20 0.02-0.04 0.03-0.06 0.04-0.07 0.04-0.08
S alloys Ni or Co hardened 350 34 10-20 0.02-0.04 0.03-0.06 0.04-0.07 0.04-0.08
based
cast 320 35 10-20 0.02-0.04 0.03-0.06 0.04-0.07 0.04-0.08
pure 400 190 36 10-20 0.02-0.03 0.02-0.03 0.03-0.04 0.03-0.04
titanium alloys
alpha+beta alloys, hardened 1050 310 37 10-20 0.02-0.03 0.02-0.03 0.03-0.04 0.03-0.04
hardened 55 HRC 38 10-20 0.01-0.02 0.01-0.02 0.02-0.03 0.02-0.03
hardened steel
H hardened 60 HRC 39 10-20 0.01-0.02 0.01-0.02 0.02-0.03 0.02-0.03
chilled cast iron cast 400 40 10-20 0.01-0.02 0.01-0.02 0.02-0.03 0.02-0.03
cast iron hardened 55 HRC 41 10-20 0.01-0.02 0.01-0.02 0.02-0.03 0.02-0.03
• For drill with lengh to diameter ratio larger than 6xD, reduce feed by 20%
• If the RPM exceeds 10,000, a dynamic balance should be done to the system
• Maximal radial and axial runout should not exceed 0.01 mm
(1) For workpiece materials list, see pages 443-472
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.
ISCAR
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