Darmet - Cutting Tools

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Milling inserts SEKN

 

Properties and application:

Specifications:

SEKN 
Insert shape and angle
S 90° shape s 90 
Normal clearance angle
E 20° angle E 20 
Tolerance class
K l ? 0,08
m ? 0,013
s ? 0,025
tolerance sh s 
Chipbreaker and clamping type
N type N 

 

productivity feed coolant stainless steel
To increase productivity it is recommended to increase feed while respecting cutting speed Please use coolant when machining suitable material groups Respect recommended cutting speed during stainless steel machining

 

Operations
frezowanie czolowe fazowanie
Surfacing Chamfering

 

DesignationGradelsP/rDCutting directions
SEKN 1203 AFTN PL 30 12 3,18 45° 25° neutral
SEKN 1204 AFTN PL 30 12 4,76 45° 25° neutral
SEKN 1504 AFTN PL 30 15 4,76 45° 25° neutral

 

SEKN 1203 AFTN i SEKN 1204 AFTN
Material groupGroup numberBrinell hardness
[HB]
ap [mm]Feed [mm/turn]Vc [m/min]
minmaxminmaxminmax
Low carbon steel 1 150 0,5 7,0 0,20 0,32 190 350
180 7,0 0,32 300
210 7,0 0,32 260
Alloy steel 2 180 0,5 7,0 0,20 0,30 150 240
230 7,0 0,30 210
280 0,5 7,0 0,20 0,30 130 190
320 7,0 0,30 170
High alloy steel 3 220 0,5 7,0 0,15 0,25 90 150
280 7,0 0,25 130
320 0,5 7,0 0,15 0,25 60 110
350 7,0 0,25 90
400 0,5 5,0 0,12 0,24 40 80
480 3,0 0,22 70
550 1,5 0,20 60
Austenitic stainless steel
4 210 - 250 0,5 7,0 0,18 0,32 190 250
5 230 - 270 0,5 5,0 0,15 0,28 160 210
6 - 0,5 5,0 0,12 0,25 70 150
Ferritic stainless steel
7 annealed 0,5 7,0 0,12 0,32 150 210
Martensitic stainless steel
8 annealed 0,5 7,0 0,12 0,32 150 230
treated 0,5 5,0 0,12 0,28 90 170
Grey cast iron 9 140 - 230 0,5 7,0 0,15 0,40 170 300
250
210
Nodular cast iron 10 210 0,5 7,0 0,12 0,32 120 210
260 170
310 150
450 0,5 3,0 0,12 0,22 30 60
Nickel based alloys
11 - 0,5 5,0 0,12 0,28 25 35
28 40
40 60
Titanium based alloys
12 - 0,5 5,0 0,12 0,32 35 60
0,28 28 40

 

SEKN 1504 AFTN
Material groupGroup numberBrinell hardness
[HB]
ap [mm]Feed [mm/turn]Vc [m/min]
minmaxminmaxminmax
Low carbon steel 1 150 0,5 9,0 0,20 0,52 190 350
180 9,0 0,52 300
210 9,0 0,52 260
Alloy steel 2 180 0,5 9,0 0,20 0,48 150 240
230 9,0 0,48 210
280 0,5 9,0 0,20 0,45 130 190
320 9,0 0,45 170
High alloy steel 3 220 0,5 9,0 0,15 0,42 90 150
280 9,0 0,42 130
320 0,5 9,0 0,15 0,38 60 110
350 9,0 0,38 90
400 0,3 5,0 0,12 0,32 40 80
480 3,0 0,28 70
550 1,5 0,26 60
Austenitic stainless steel
4 210 - 250 0,5 7,0 0,25 0,35 190 250
5 230 - 270 0,5 7,0 0,23 0,32 160 210
6 - 0,5 7,0 0,18 0,28 70 150
Ferritic stainless steel
7 annealed 0,5 9,0 0,23 0,38 150 210
Martensitic stainless steel
8 annealed 0,5 9,0 0,18 0,38 150 230
treated 0,5 9,0 0,18 0,32 90 170
Grey cast iron 9 140 - 230 0,5 9,0 0,25 0,60 170 300
250
210
Nodular cast iron 10 210 0,5 9,0 0,18 0,50 120 210
260 170
310 150
450 0,5 3,0 0,12 0,28 30 60
Nickel based alloys
11 - 0,5 7,0 0,18 0,32 25 35
28 40
40 60
Titanium based alloys
12 - 0,5 7,0 0,18 0,32 35 60
0,28 28 40

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