Determining The Cutting Speed And The Speed; Speed Table; Table Cutting Speeds / Infeed - Optimum B 24 H Operating Manual

OPTIMUM
M A S C H I N E N - G E R M A N Y
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
4 6
in m/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
Page 46
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
3185 3822 4777
2123 2548 3185
1592 1911 2389
1274 1529 1911
849 1062 1274 1592
728 910 1092 1365
637 796 955 1194
Determining the cutting speed and the speed Bench drill and upright drill B24H ; B28H
(B) (Vario) ; Version 2.1.7
Determining the cutting speed and the speed
Recommended infeed f
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
18 20 25 30
Speed n in rpm
5732 6369 7962 9554
3822 4246 5308 6369
2866 3185 3981 4777
2293 2548 3185 3822
1911 2123 2654 3185
1638 1820 2275 2730
1433 1592 1990 2389
in mm/revolution
>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
35 40 50 60
11146 12739 15924 19108
7431 8493 10616 12739
5573 6369 7962 9554
4459 5096 6369 7643
3715 4246 5308 6369
3185 3640 4550 5460
2787 3185 3981 4777
>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
80 100
25478 31847
16985 21231
12739 15924
10191 12739
8493 10616
7279 9099
6369 7962
21 / 07 / 2014