Chipbreaker and Grade Selection Guide for Turning Cast Iron Cast Iron
Grades
AC4010K /
AC4015K / AC420K
AC4010K : Our 1st recommended grade for machining gray cast iron.
Adopts an ultra-thick new CVD coating to realise ultra-high-speed machining at V C = 2,300 SFM.
AC4015K : Our 1st recommended grade for ductile cast iron.
New high-adhesion, high-strength CVD coating realises both wear resistance and chipping resistance. AC420K : Superior fracture resistance, providing excellent stability in interrupted unstable cutting and when cutting mill-scaled work.
Performance
AC4010K/AC4015K Wear Resistance
● Gray Cast Iron
● Ductile Cast Iron
A
●
■ ◆
.016
.016
Competitor's Product B (K10)
●
Competitor's Product A (K10)
■
■
●
◆
Conventional Tool
●
■
■ ◆
.012
.012
●
● ● ●
AC4010K
■
● ●
●
●
●
■ ● ●
■
AC4015K
AC4010K
.008
.008
● ●
■ ● ●
●
●
●
◆ ●
■ ● ●
■ ◆ ●
.004
.004
■ ●
0
2
4
6
8
10
0
5
10
15
20
25
30
Cutting Time (min)
Cutting Time (min)
After 12 minutes
After 12 minutes
After 12 minutes
Conventional Tool
Competitor's Product A (K10)
AC4010K
AC4010K
AC4015K
Competitor's Product B (K10)
Workpiece Material: FC250 Continuous Insert: CNMG432EGZ Cutting Conditions: v c =1,970 SFM, f =0.016 IPR, a p =.080", Dry
Workpiece Material: FCD700 Continuous Insert: CNMG432EGZ Cutting Conditions: v c =460 SFM, f =0.012 IPR, a p =.060", Wet
AC4010K/AC4015K Chipping Resistance
● Gray Cast Iron
● Ductile Cast Iron
Minor Chipping
Minor Chipping
400
300
200
100
0
Competitor's Product D (K15) Conventional Tool
AC4010K AC4015K
After 10 minutes
After 10 minutes
AC4010K
AC4015K
Chipping on Flank
Chipping on Rake Face
After 240 seconds
After 240 seconds
AC4010K
AC4015K
After 6 minutes
After 10 minutes
After 240 seconds
After 240 seconds
Conventional Tool
Competitor's Product C (K15)
Conventional Tool
Competitor's Product D (K15)
Workpiece Material: FC250 Interrupted Insert: CNMG432EGZ Cutting Conditions: v c =1,300 SFM, f =0.012 IPR, a p =.080", Wet
Workpiece Material: FCD450 Interrupted Insert: CNMG432EGZ Cutting Conditions: v c =1,475 SFM, f =0.012 IPR, a p =.060", Wet
AC420K Fracture Resistance
FCD450 Grooved (Heavy Interrupted Acceleration Test)
Cutting Edge Wear Comparison (After 150s)
AC420K
Competitor's Product E ( K15 )
Competitor's Product F ( K20 )
AC420K
Fracture Resistance Drastically Improved
Competitor's Product E (K15)
Competitor's Product F (K20)
Workpiece Material: FCD450 Interrupted Insert: CNMG432EGZ Cutting Conditions: v c =1,150 SFM, f =0.010 IPR, a p =060", Wet
100 150 200
300
A17
Tool Life (s)
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