EWN 04-7
Fine boring head
Ø 0.4-3.0
View 90° twisted
View 90° twisted
x
x
Ø 4 carbide
Ø 4 carbide
CK1
Ø 0.4-0.6 / 0.9 mm Boring depth Carbide boring bars Vc (max)* Allow. Feed X [mm] Order No. R m/min mm/Ø mm/U
Ø 0.6-0.8 / 0.9 mm Boring depth Carbide boring bars Vc (max)* Allow. Feed X [mm] Order No. R m/min mm/Ø mm/U 1.5 55
Workpiece material
1.1 1.5 1.1 1.5 1.1 1.5 1.1 1.5 1.1 1.5 1.1 1.5
615.561 615.541 615.561 615.541 615.561 615.541 615.551 615.541 615.561 615.541 615.561 615.541
0.10 0.05 0.10 0.05 0.10 0.05 0.10 0.05 0.10 0.05 0.10 0.05
615.562 615.541 615.562 615.541 615.562 615.541 615.552 615.541 615.562 615.541 615.562 615.541
0.10 0.05 0.10 0.05 0.10 0.05 0.10 0.05 0.10 0.05 0.10 0.05
35
0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02
0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02
P Steel
35
55
M Stainless steels
1.5
35
55
K Cast iron
1.5
35
Aluminium
55
1.5
N
Non-ferrous metals
35
55
1.5
30
S Titaniumium
50
1.5
Ø 0.8-1.2 / 0.9-1.4 mm Boring depth Carbide boring bars Vc (max)* Allow. Feed X [mm] Order No. R m/min mm/Ø mm/U
Ø 1.2-1.5 / 0.9-1.4 mm Boring depth Carbide boring bars Vc (max)* Allow. Feed X [mm] Order No. R m/min mm/Ø mm/U
Workpiece material
2.0 3.0 2.0 3.0 2.0 3.0 2.0 3.0 2.0 3.0 2.0 3.0
615.563 615.542 615.563 615.542 615.563 615.542 615.553 615.542 615.563 615.542 615.563 615.542
0.10 0.05 75 0.10 0.05 75
2.5 3.0 2.5 3.0 2.5 3.0 2.5 3.0 2.5 3.0 2.5 3.0
615.564 615.542 615.564 615.542 615.564 615.542 615.554 615.542 615.564 615.542 615.564 615.542
0.10 0.05 0.10 0.05 0.10 0.05 0.10 0.05 0.10 0.05 0.10 0.05
0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02
85
0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02 0.1 0.04 0.02
P Steel
85
M Stainless steels
0.10 0.05 0.10 0.05 0.10 0.05 0.10 0.05
75
85
K Cast iron
75
Aluminium
85
N
Non-ferrous metals
75
85
50
S Titaniumium
50
Ø 1.5-1.9 /1.4-2.0 mm Boring depth Carbide boring bars Vc (max)* Allow. Feed X [mm] Order No. R m/min mm/Ø mm/U
Ø 1.9-3.0 mm Boring depth Carbide boring bars Vc (max)* Allow. Feed X [mm] Order No. R m/min mm/Ø mm/U
Workpiece material
3.5 5.0 3.5 5.0 3.5 5.0 3.5 5.0 3.5 5.0 3.5 5.0
615.565 615.543 615.565 615.543 615.565 615.543 615.555 615.543 615.565 615.543 615.565 615.543
0.20 0.05 140 0.20 0.05 125 0.20 0.05 140 0.20 0.05 140 0.20 0.05 140
4.5 6.0 4.5 6.0 4.5 6.0 4.5 6.0 4.5 6.0 4.5 6.0
615.566 615.544 615.566 615.544 615.566 615.544 615.566 615.544 615.566 615.544 615.566 615.544
0.20 0.05 175 0.20 0.05 125 0.20 0.05 175 0.20 0.05 175 0.20 0.05 175
0.1 0.06 0.02 0.1 0.06 0.02 0.1 0.06 0.02 0.1 0.06 0.02 0.1 0.06 0.02 0.1 0.06 0.02
0.1 0.06 0.02 0.1 0.06 0.02 0.1 0.06 0.02 0.1 0.06 0.02 0.1 0.06 0.02 0.1 0.06 0.02
P Steel
M Stainless steels
K Cast iron
Aluminium
N
Non-ferrous metals
0.20 0.05
0.20 0.05
50
S Titaniumium
50
Remark: * Vc max. corresponds either to the max. permissible spindle speed for this fine boring head (30 000 rpm), or to the max. cutting speed for the machining of the corresponding workpiece material.
For cutting with high spindle speeds (> 15 000 rpm), the complete and pre-set tool assembly has to be fine balanced. For all operations we recommend to use a fine balanced tool shank.
64
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