Coated grades for Steel Turning AC8015P / AC8020P / AC8025P / AC8035P
AC8035P G RADE FOR I NTERRUPTED C UTTING
More than double the fracture resistance performance
Excellent Stability Coating Stress Control Special surface treatment reduces tensile residual stress and significantly reduces chipping
AC8035P
90% less tensile stress
SEM image
0.008
0.010
0.012
Tensile residual stress in TiCN （ GPa ） 0 0.1 0.2 0.3
0
250
500
# of Impacts
Each corner can continue
Conventional
SEM image
0.008
0.010
0.012
0 0.1 0.2 0.3
0
250
500
Unable to continue
# of Impacts
Tensile residual stress in TiCN （ GPa ）
Part Material ： 4137 Steel (External Interrupted) Insert ： CNMG432EGU-AC8035P Cutting Conditions ： v c = 530 SFM f = .0079 - .0118 IPR a p = .079” Dry
■ AC8035P Cutting Conditions
Soft steel, Low carbon steel (1010, etc.) Low alloy steel (4130, etc.) 180HB or less
High carbon steel (1045, etc.) High alloy steel (4137, etc.) 180HB or more
Insert
Chipbreaker
Depth of Cut (in.) Feed Rate (IPR) Speed vc (SFM) Depth of Cut (in.) Feed Rate (IPR)
Speed vc (SFM)
EFE
.004 - .050
.004 - .016 .004 - .016 .004 - .024 .004 - .018 .008 - .024 .008 - .028 .014 - .032 .006 - .018 .008 - .024 .008 - .028 .014 - .032 .008 - .024 .008 - .028 .014 - .032 .018 - .045
400 - 1000 400 - 1000 400 - 1000 325 - 825 325 - 825 325 - 650 325 - 825 325 - 650 325 - 650 250 - 600 325 - 650 325 - 650 250 - 600 400 - 625 225 - 500
.004 - .050 .020 - .080 .020 - .100 .030 - .200 .070 - .235 .070 - .235 .120 - .315 .030 - .200 .070 - .235 .060 - .275 .120 - .315 .070 - .250 .080 - .315 .120 - .350 .175 - .535
.004 - .016 .004 - .016 .004 - .024 .004 - .018 .008 - .024 .008 - .028 .014 - .032 .006 - .018 .008 - .024 .008 - .028 .014 - .032 .008 - .024 .008 - .028 .014 - .032 .018 - .045
400 - 825 400 - 825 325 - 650 250 - 600 250 - 600 225 - 525 300 - 550 225 - 500 225 - 500 200 - 450 225 - 500 225 - 500 200 - 450 300 - 525 150 - 400
ELU, ESU, ESE .020 - .080 ESEW .020 - .100 EGU, EGE, EUX .030 - .200
CNM □ 43 □ DNM □ 43 □ SNM □ 43 □
TNM □ 33 □ TNM □ 43 □ WNM □ 43 □
EMU EME EHG
.070 - .235 .070 - .235 .120 - .315
EGU, EGE, EUX .030 - .200
EMU EME EHG EMU EME EHG EHF
.070 - .235 .060 - .275 .120 - .315 .070 - .250 .080 - .315 .120 - .350 .175 - .535
CNM □ 54 □ SNM □ 54 □
CNM □ 64 □ CNM □ 86 □ DNM □ 54 □
SNM □ 64 □ SNM □ 86 □ TNM □ 54 □
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