Indexable Drills
Feed Force Requirement

„
Feed Force Requirement

Steel 4140
10
9
8
Feed Force [kN] 7
f = 0.25
6
f = 0.20
5
4
3 f = 0.16
2
f = 0.12
1
0
12 16 20 24 28 32 36 40 44 48 52 56 60 64 68
Drill Diameter D1 (mm)


Stainless Steel 304
10
f = 0.20
9
8
f = 0.18
Feed Force [kN]


7
6
f = 0.15
5
4
f = 0.12
3
2
1
0
12 16 20 24 28 32 36 40 44 48 52 56 60 64 68
Drill Diameter D1 (mm)


Cast Iron GG25
10
9
8
Feed Force [kN]


7
6
f = 0.25
5
4
f = 0.20
3
f = 0.16
2
f = 0.12
1
0
12 16 20 24 28 32 36 40 44 48 52 56 60 64 68
Drill Diameter D1 (mm)


V38 widia.com


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