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Tools
and Inserts for DRILLING |
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Cutting
Data Standart Values |
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Main
groups of material and their characteristic
letters |
Brinell
hardness
HB |
Feed f (mm/rev.)
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Cutting
Speed
vc=m/min |
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Diameter
of hole (mm) |
| Material |
<25 |
25-40 |
>40 |
R331 |
SB40 |
| P |
Unalloyed
steel1) |
ca
0.15 % C annealed |
125 |
0.05-0.1 |
0.08-0.2 |
0.1-0.25 |
200-300 |
100-160 |
| ca
0.45 % C annealed |
190 |
0.05-0.1 |
0.08-0.2 |
0.1-0.3 |
200-300 |
100-160 |
| ca
0.45 % C hardened and temp. |
250 |
0.05-0.1 |
0.08-0.2 |
0.1-0.3 |
180-300 |
100-160 |
| ca
0.75 % C annealed |
270 |
0.05-0.1 |
0.08-0.2 |
0.1-0.3 |
180-280 |
100-160 |
| ca
0.75 % C hardened and temp. |
300 |
0.05-0.1 |
0.08-0.2 |
0.1-0.3 |
150-250 |
100-160 |
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Low-alloy steel1) |
annealed |
180 |
0.05-0.12 |
0.08-0.25 |
0.1-0.3 |
180-300 |
100-140 |
| hardened
and temp. |
275 |
0.05-0.12 |
0.08-0.25 |
0.1-0.3 |
150-250 |
100-140 |
| hardened
and temp. |
300 |
0.05-0.1 |
0.08-0.2 |
0.1-0.3 |
120-250 |
100-140 |
| hardened
and temp. |
350 |
0.05-0.1 |
0.08-0.2 |
0.1-0.3 |
120-220 |
100-140 |
| High-alloy
steel 1) |
annealed |
200 |
0.05-0.14 |
0.08-0.25 |
0.1-0.3 |
150-300 |
100-140 |
| hardened
and temp. |
325 |
0.05-0.1 |
0.08-0.2 |
0.1-0.3 |
120-250 |
100-140 |
| Stainless
steel1) |
ferritic/martensitic,annealed |
200 |
0.05-0.1 |
0.08-0.2 |
0.1-0.3 |
120-300 |
100-140 |
| martensitic,
hardened and temp. |
240 |
0.05-0.1 |
0.08-0.2 |
0.1-0.3 |
120-300 |
100-140 |
| M |
Stainless
steel 1) |
austenitic
2), quenched |
180 |
0.05-0.1 |
0.08-0.2 |
0.1-0.25 |
120-250 |
80-120 |
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1)
and cast steel
2) and austenitic / ferritic |
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