Общий каталог Sumitomo 2019 - 2020 - страница 17

Work Material Flank Wear Width (mm) Flank Wear Width (mm) Cutting Time until Chipping (s) For SmallLathesNon-FerrousHardenedMetalSteelExotic AlloyCast IronStainlessSteelSteelInsert Grades 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 VC = 700m/min. 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 A ● Gray Cast Iron ● Ductile Cast Iron 0.4 ■ 0.4 ● Competitor's Product A (K10) ■ ◆0.3■◆Conventional Tool ■ Competitor's Product B (K10) ●●0.3■● ◆ ●0.2■● AC4010K●◆●●0.1●◆■ 0.2 ●■ ■●■●● ●● ●● ● ● AC4010K●AC4015K●●0.1■●● ●■ 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 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 ● Gray Cast Iron ● Ductile Cast Iron Minor Chipping Minor Chipping 400 300 200 100 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 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 Fracture Resistance(K20)Drastically Improved AC420K Competitor's Product E (K15) Competitor's Product F (K20) 100 150 200 300Tool Life (s) Work Material: FCD450 Interrupted Insert: CNMG120408N-GZCutting Conditions: vc=350m/min, f=0.25mm/rev, ap=1.5mm Wet A17