Chipbreaker and Grade Selection Guide for Turning Stainless Steel
Stainless Steel
Grades
AC6020M / AC6030M / AC6040M / AC1030U
AC6030M : Our 1st recommended grade for turning of stainless steel, achieving long and stable machining. Drastically reduces the abnormal damage common in stainless steel machining, thanks to the improved coating strength and excellent adhesion. AC6040M :Drastically improves reliability in the unstable cutting range, thanks to the excellent adhesion and peel-off resistance of the new PVD coating as well as the improved fracture resistance of the dedicated carbide substrate. AC6020M :Combines a high-hardness carbide substrate with excellent wear resistance and a new CVD coating with improved coating strength to achieve both excellent wear resistance and fracture resistance. Achieves long, stable tool life during high-speed cutting.
AC1030U : High-quality cutting edge grade suppresses adhesion and micro-chipping, realizing excellent machined surface quality.
Performance
A
AC6020M
● Continuous Cutting (Medium Speed)
● Continuous Cutting (High Speed)
.020
.010
◆
■
●
.016
.008
AC6020M
Competitor's Product B (CVD M20)
■ ●
Conventional Tool
Competitor's Product A (CVD M20) ●
■
.012
.006
■ ■ ■
◆ ● ●
●
■
●
AC6020M
■
◆ ◆ ◆
■
■
● ● ●
◆ ◆
.008
.004
Conventional Tool ◆ ◆ ■ ● ● ●
◆
■ ●
■ ■ ● ● ◆
.004
.002
◆ ●
●
0
0
10
20
30
10
20
30
Cutting Time (min)
Cutting Time (min)
Workpiece Material: 316L Insert: CNMG432EGU Cutting Conditions: v c =656 SFM, f =0.012 IPR, a p =.080”, Wet
Workpiece Material: 316L Insert: CNMG432EGU Cutting Conditions: v c =490 SFM, f =0.012 IPR, a p =.080”, Wet
AC6030M
● Continuous Cutting
● Interrupted Cutting
.012
Competitor's Product C ( CVD M30)
AC6030M
.010
Conventional Tool
.008
.006
Conventional Tool
.004
AC6030M
Competitor's Product D (CVD M30)
.002
0
10
20
30
40
50
0
500
1,000 1,500 2,000 2,500
Cutting Time (min)
No. of Impacts until Breakage
Workpiece Material: 316 Insert: CNMG432EGU Cutting Conditions: v c =330 SFM, f =.004 IPR, a p =0.04”, Wet
Workpiece Material: 316 Insert: CNMG432EEX Cutting Conditions: v c =656 SFM, f =0.008 IPR, a p =.080”, Wet
AC6040M
● Interrupted Cutting
● Continuous Cutting
.012
Competitor's Product E ( PVD M40)
AC6040M
.010
.008
Conventional Tool
.006
Conventional Tool
.004
AC6040M
Competitor's Product F (PVD M40)
.002
0
0
1,000 2,000 3,000 4,000 5,000 6,000
10
20
30
40
50
Cutting Time (min)
No. of Impacts until Breakage
Workpiece Material: 316 Insert: CNMG432EGU Cutting Conditions: v c =490 SFM, f =.008 IPR, a p =.080”, Wet
Workpiece Material: 316 Insert: CNMG432EGU Cutting Conditions: v c =755 SFM, f =.009 IPR, a p =.030”, Dry
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