Darmet - Cutting Tools

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Milling inserts SPKN

 

Properties and application:

Specifications:

SPKN 
Insert shape and angle
S 90° shape s 90 
Normal clearance angle
P 11° angle p 11 
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
To increase productivity it is recommended to increase feed while respecting cutting speed Please use coolant when machining suitable material groups

 

Operations
frezowanie czolowe
Surfacing

 

DesignationGradelsP/rDCutting direction
SPKN 1203 EDTR PL 30 12 3,18 75° 15° right
SPKN 1204 EDTR PL 30 12 4,76 75° 15° right
SPKN 1504 EDTR PL 30 15 4,76 75° 15° right

 

SPKN 1203 EDTR i SPKN 1204 EDTR
Material groupGroup numberBrinell hardness
[HB]
ap [mm]Feed [mm/turn]Vc [m/min]
minmaxminmaxminmax
Low carbon steel 1 150 0,5 7,0 0,18 0,38 190 350
180 7,0 0,38 300
210 7,0 0,38 260
Alloy steel 2 180 0,5 7,0 0,15 0,35 150 240
230 7,0 0,35 210
280 0,5 7,0 0,15 0,32 130 190
320 7,0 0,32 170
High alloy steel 3 220 0,5 7,0 0,12 0,32 90 150
280 7,0 0,32 130
320 0,5 7,0 0,12 0,28 60 110
350 7,0 0,28 90
400 0,5 5,0 0,10 0,22 40 80
480 3,0 0,20 70
550 1,5 0,28 60
Austenitic stainless steel
4 210 - 250 Not recommended
5 230 - 270
6 -
Ferritic stainless steel
7 annealed
Martensitic stainless steel
8 annealed
treated
Grey cast iron 9 140 - 230 0,5 7,0 0,15 0,38 170 300
250
210
Nodular cast iron 10 210 0,5 7,0 0,12 0,30 120 210
260 170
310 150
450 0,5 3,0 0,10 0,20 30 60
Nickel based alloys
11 - Not recommended
Titanium based alloys 12 -

 

SPKN 1504 EDTR
Material groupGroup numberBrinell hardness
[HB]
ap [mm]Feed [mm/turn]Vc [m/min]
minmaxminmaxminmax
Low carbon steel 1 150 0,5 9,0 0,18 0,38 190 350
180 9,0 0,38 300
210 9,0 0,38 260
Alloy steel 2 180 0,5 9,0 0,15 0,35 150 240
230 9,0 0,35 210
280 0,5 9,0 0,15 0,32 130 190
320 9,0 0,32 170
High alloy steel 3 220 0,5 9,0 0,12 0,32 90 150
280 9,0 0,32 130
320 0,5 9,0 0,12 0,28 60 110
350 9,0 0,28 90
400 0,5 6,0 0,10 0,22 40 80
480 3,0 0,20 70
550 1,5 0,28 60
Austenitic stainless steel
4 210 - 250 Not recommended
5 230 - 270
6 -
Ferritic stainless steel
7 annealed
Martensitic stainless steel
8 annealed
treated
Grey cast iron 9 140 - 230 0,5 9,0 0,15 0,38 170 300
250
210
Nodular cast iron 10 210 0,5 9,0 0,12 0,30 120 210
260 170
310 150
450 0,5 3,0 0,10 0,20 30 60
Nickel based alloys
11 - Not recommended
Titanium based alloys 12 -

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