04.12.2008 Thursday
 


Tools and Inserts for DRILLING  
Toolsr(Index)
Inserts(Index)
Cutting Data Standart Values
Grade Overview
Cutting Data Standart Values
 
Main groups of material and their characteristic letters Brinell
hardness
HB
Feed f (mm/rev.)
Cutting Speed
vc=m/min
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
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
1) and cast steel
2) and austenitic / ferritic