Determining The Cutting Speed And The Speed; Speed Table - Optimum OPTI drill DQ 20V Operating Manual

5

Determining the cutting speed and the speed

5.1 Table cutting speeds / infeed
Material table
Material to be processed
Unalloyed construction steels
< 700 N/mm²
Alloyed construction steels
> 700 N/mm²
Alloyed steels
< 1000 N/mm²
Steels, low stability
< 800 N/mm²
Steel, high stability
> 800 N/mm²
non-rust steels
> 800 N/mm²
Cast iron
< 250 N/mm²
Cast iron
> 250 N/mm²
CuZn alloy
brittle
CuZn alloy
ductile
Aluminum alloy
up to 11% Si
Thermoplastics
Thermosetting materials with
organic filling
Thermosetting materials with
anorganic filling
5.2

Speed table

Vc
in m/ 4 6
min
Drill
bit Ø
in
mm
1,0 1274 1911 2548
1,5 849 1274 1699
2,0 637 955 1274
2,5 510 764 1019
3,0 425 637
3,5 364 546
4,0 318 478
Determining the cutting speed and the speed
Version 1.0.1 - 2021-05-11
Recommended
cutting speed
Vc in m/min
30 - 35
20 - 25
20 - 25
40
20
12
15 - 25
10 - 20
60 - 100
35 - 60
30 - 50
20 - 40
15 - 35
15 - 25
8 10 12 15 18
3185 3822 4777 5732
2123 2548 3185 3822
1592 1911 2389 2866
1274 1529 1911 2293
849 1062 1274 1592 1911
728 910 1092 1365 1638
637 796 955 1194 1433
Translation of original operating manual
Recommended infeed f
in mm/revolution
Drill bit diameter d in mm
2...3 >3...6
0.05 0.10
0.04 0.08
0.04 0.08
0.05 0.10
0.04 0.08
0.03 0.06
0.10 0.20
0.05 0.15
0.10 0.15
0.05 0.10
0.10 0.20
0.05 0.10
0.05 0.10
0.05 0.10
20 25 30 35
Speed n in rpm
6369 7962 9554 11146
4246 5308 6369 7431
3185 3981 4777 5573
2548 3185 3822 4459
2123 2654 3185 3715
1820 2275 2730 3185
1592 1990 2389 2787
>6...12 >12...25
0.15 0.25
0.10 0.15
0.10 0.15
0.15 0.25
0.10 0.15
0.08 0.12
0.30 0.40
0.25 0.35
0.30 0.40
0.25 0.35
0.30 0.40
0.20 0.30
0.20 0.30
0.20 0.30
40 50 60 80
12739 15924 19108 25478
8493 10616 12739 16985
6369 7962 9554 12739
5096 6369 7643 10191
4246 5308 6369 8493
3640 4550 5460 7279
3185 3981 4777 6369
>25...50
0.35
0.20
0.20
0.35
0.20
0.18
0.60
0.55
0.60
0.55
0.60
0.40
0.40
0.40
100
31847
21231
15924
12739
10616
9099
7962
EN
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