Общий каталог Sumitomo 2019 - 2020 - страница 17

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Cast Iron Chipbreaker and Grade Selection Guide for Turning

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 = 700m/min. C 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

A

AC4010K/AC4015K Wear Resistance

  • Gray Cast Iron
  • Ductile Cast Iron
0.4■0.4●
Competitor's Product A (K10)Competitor's

■ Product B (K10)

◆ Conventional Tool 0.3

0.3 ■ ■

  • AC4010K
0.2● AC4010K0.2●■●AC4015K
0.10.1●

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

AC4010KConventional ToolCompetitor's Product A (K10)AC4010KAC4015KCompetitor's Product B (K10)
Work Material: FC250 Continuous Insert: CNMG120408N-GZWork Material: FCD700 Continuous Insert: CNMG120408N-GZ
Cutting Conditions: v =600m/min, f=0.4mm/rev, a =2.0mm DryCutting Conditions: v =140m/min, f=0.3mm/rev, a =1.5mm Wet

c p c p

AC4010K/AC4015K Chipping Resistance

  • Gray Cast Iron
  • Ductile Cast Iron
Minor ChippingMinor Chipping400
300
200
100

0 AC4010K AC4015K Conventional Tool Competitor's Product D (K15)

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 minutesAfter 10 minutesAfter 240 secondsAfter 240 seconds
Conventional ToolCompetitor's Product C (K15)Conventional ToolCompetitor's Product D (K15)
Work Material: FC250 Interrupted Insert: CNMG120408N-GZWork Material: FCD450 Interrupted Insert: CNMG120408N-GZ
Cutting Conditions: v =400m/min, f=0.3mm/rev, a =2.0mm WetCutting Conditions: v =450m/min, f=0.3mm/rev, a =1.5mm Wet

c p c p

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 AC420K

Fracture ResistanceCompetitor's Product E (K15)Competitor's Product F (K20)
(K20)Drastically Improved
Work Material: FCD450 Interrupted Insert: CNMG120408N-GZ

100 150 200 300

Tool Life (s) Cutting Conditions: v =350m/min, f=0.25mm/rev, a =1.5mm Wet c p