Общий каталог Sumitomo 2019 - 2020 - страница 17

Chipbreaker and Grade Selection Guide for Turning Material Work 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 VC = 700m/min. AC4015K : Our 1st recommended grade for ductile cast iron. Insert Grades 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 ● Gray Cast Iron AC4010K/AC4015K Wear Resistance ● Ductile Cast Iron A 0.4 ■ 0.4 ● Competitor's Product A (K10) ■ Competitor's ● ◆ ■ Product B (K10) ● Steel Flank Wear Width (mm) Flank Wear Width (mm) 0.3 ■ ◆ Conventional Tool 0.3 ■ ● ● ● ◆ ■ ● ● ● ● AC4010K ● ● ● 0.2 ■ AC4010K 0.2 ● ■ ● ● AC4015K ● ■ ● ● ◆ ● ● ● ■ ● Stainless 0.1● ◆ ■ 0.1 ● Steel ● ■ 0 2 4 6 8 10 0 5 10 15 20 25 30 Cutting Time (min) Cutting Time (min) Cast Iron After 12 minutes After 12 minutes After 12 minutes Exotic Alloy AC4010K Conventional Tool Competitor's Product A (K10) AC4010K AC4015K Competitor's Product B (K10) Work Material: FC250 Continuous Insert: CNMG120408N-GZ Work Material: FCD700 Continuous Insert: CNMG120408N-GZ Cutting Conditions: vc=600m/min, f=0.4mm/rev, ap=2.0mm Dry Cutting Conditions: vc=140m/min, f=0.3mm/rev, ap=1.5mm Wet AC4010K/AC4015K Chipping Resistance Hardened ● Gray Cast Iron ● Ductile Cast Iron Steel Minor Chipping Minor Chipping 400 Cutting Time until Chipping (s) 300 Non-Ferrous Metal 200 100 For Small 0 AC4010K AC4015K Conventional Tool Competitor's Product D (K15) Lathes 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) Work Material: FC250 Interrupted Insert: CNMG120408N-GZ Work Material: FCD450 Interrupted Insert: CNMG120408N-GZ Cutting Conditions: vc=400m/min, f=0.3mm/rev, ap=2.0mm Wet Cutting Conditions: vc=450m/min, f=0.3mm/rev, ap=1.5mm 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) Fracture Resistance AC420K Competitor's Product E (K15) Competitor's Product F (K20) Drastically Improved Work Material: FCD450 Interrupted Insert: CNMG120408N-GZ 100 150 200 300 Tool Life (s) Cutting Conditions: vc=350m/min, f=0.25mm/rev, ap=1.5mm Wet A17