Chipbreaker and Grade Selection Guide for Turning Steel
Steel
■ Application Guide
*Chipbreaker dimensions in mm
EGU Type Chipbreaker 1st Recommended 2.05 0.25 7° 25°
1st Recommended Grade AC8025P
A
Chipbreakers for High-efciency Machining
Main Chipbreakers Strong Cutting Edge Chipbreakers
EFE Type
ESE Type
ESU Type
ESX Type
1.3
1.40
1.35
1.5
0.2
0.1 5 °
Finishing to Shallow Depth of Cut
13°
0.70
15°
17 °
20°
3°
EGE Type
EGU Type
EUX Type
2.0
2.05
2.0 15°
0.25
0.25
0.25
25°
General-purpose
23°
7°
3°
1st Recommended
EME Type
EMX Type
EMU Type
2.3 0.2 0.4 -15 °
2.5
2.4
0.3
Roughing to Large Depth of Cut
0.3 4°
20 °
20 °
4 °
AC8015P High-speed Machining Better Wear Resistance
AC8035P Interrupted Machining Better Toughness
EGU Type
EFE Type
1.40
2.05
0.25
To improve tool life
To improve tool life
0.70
25°
20°
7°
EUX Type
ESE Type
1.5
2.0 15°
To improve machining efciency
To improve machining stability
0.1 5 °
0.25
17 °
Better Performance
AC8020P
High Efficiency
EGU Type
EGE Type
2.0
2.05
To increase feed rate
To increase cutting speed
0.25
0.25
25°
23°
7°
3°
Dimensions in mm
Recommended Cutting Conditions
Steel
(Red text indicates 1st recommendation)
Workpiece Material
Cutting Process
Cutting Conditions
Min. - Max.
Chipbreaker
Grade
Depth of Cut a p (inch)
Cutting Speed v c (SFM)
Feed Rate f (IPR)
T1500Z
Fine Finishing EFB Finishing EFE
.008 - .040 .020 - .060 .040 - .160 .060 - .240 .008 - .040 .020 - .060 .040 - .160 .060 - .240 .008 - .040 .020 - .060 .040 - .160 .060 - .240
.002 - .010 .004 - .016 .008 - .020 .012 - .024 .002 - .010 .004 - .016 .008 - .020 .012 - .024 .002 - .010 .004 - .016 .008 - .020 .012 - .024
330 - 1500 850 - 1600 650 - 1200 450 - 800 330 - 1100 700 - 1400 500 - 850 350 - 600 160 - 900 550 - 1100 400 - 750 300 - 550
AC8015P
Mild Steel (SS400 and others)
EGU AC8025P
Medium
AC8035P
Rough EMU Fine Finishing EFB Finishing EFE
T1500Z
Carbon Steel Alloy Steel (S45C, SCM435, and others) Hard Steel Alloy Steel (SCM440H and others)
AC8015P
EGU AC8020P
Medium
AC8035P
Rough EMU Fine Finishing EFB Finishing EFE
T1500Z
AC8015P
EGU AC8020P
Medium
AC8035P
Rough EMU
A13
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