Coated grades for Steel Turning AC8015P / AC8020P / AC8025P / AC8035P
AC8025P G ENERAL P URPOSE G RADE
Double the adhesion and breakage resistance!
Absolute Reliability Smooth Surface
Improved tool surface smoothness and significantly reduced adhesions through special surface treatment
AC8025P
2min
70min
120min
SEM image
Ra0.04µm
Normal Wear Controlled tool life during long cut time
Conventional
2min
70min
SEM image
Unable to Continue
Ra0.4µm
Part Material ： Chrome-molybdenum Alloy Steel （ End Face ） Insert ： CNMG432EGU-AC8025P Cutting Conditions ： v c = 330 - 960 SFM f = .0118 IPR a p = .059” Wet Adhesions Breakage
■ AC8025P 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
500 - 1150 500 - 1150 500 - 1150 500 - 1000 425 - 925 425 - 925 325 - 850 425 - 925 325 - 850 325 - 850 250 - 800 325 - 850 325 - 850 250 - 800 400 - 725
.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 - 1000 400 - 1000 400 - 1000 325 - 900 250 - 750 250 - 750 200 - 650 325 - 750 250 - 700 250 - 700 225 - 600 250 - 700 250 - 700 225 - 600 350 - 625
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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