Properties and application:

Specifications:

CNGG 
Insert shape and angle
C  80° shape c 80 
Normal clearance angle
N 0° angle n 0 
Tolerance class
G l ? 0,05
m ? 0,08
s ? 0,13
 tolerance sh c 
Chipbreaker and clamping type
G type G

 

Insert application guide
Designation Super finishing Finishing Semi finishing Roughing Interrupted cut
CNGG 120404 ALU m3 m4 m1 m1 m1
CNGG 120408 ALU m2 m4 m4 m1 m2
miarka2 miarka2 miarka2 miarka2 miarka2
zalecenia1 Not recommended zalecenia2 Acceptable zalecenia3 Recommended zalecenia4 Excellent

 

Turning operations
toczenie wzdluzne toczenie poprzeczne
Straight turning Facing

 

DesignationGradelsr
CNGG 120404 ALU PL 05 12 4,76 0,4
CNGG 120408 ALU PL 05 12 4,76 0,8

 

CNGG 120404 ALU
AluminiumGroup numberBrinell hardness
[HB]		ap [mm]Feed [mm/turn]A max [mm2]Vc [m/min]Optimal cutting conditions
minmaxminmaxminmaxapfeed
Si < 4% 13 - 0,25 5,0 0,12 0,35 1,5 400 1200 0,5 - 3 0,23
4% < Si < 8% 13 - 0,10 0,30 1,2 250 600
Si > 8% 14 - Recommended to use CNMG 120404 NN insert.
 For aluminium with high content of silicon it is recommended to use CNMG 120404 NN insert with cutting conditions shown below.
Si > 8% 14 - 0,50 5,0 0,10 0,30 0,80 200 400 0,5 - 1,2 0,15

 

CNGG 120408 ALU
AluminiumGroup numberBrinell hardness
[HB]		ap [mm]Feed [mm/turn]A max [mm2]Vc [m/min]Optimal cutting conditions
minmaxminmaxminmaxapfeed
Si < 4% 13 - 0,25 5,0 0,12 0,60 2,0 400 1200 0,5 - 3 0,23
4% < Si < 8% 13 - 0,10 0,50 1,8 250 600
Si > 8% 14 - Recommended to use CNMG 120408 NN insert.
For aluminium with high content of silicon it is recommended to use CNMG 120408 NN insert with cutting conditions shown below.
Si > 8% 14 - 0,50 5,0 0,10 0,50 1,50 200 400 1,0 - 3 0,25