Каталог Sumitomo сплавы и режимы - страница 15

Representative Grades / K Cast Iron

Cast Iron

Grades High Speed Continuous Cutting General Purpose Mill-Scaled Work/Interrupted Cutting

AC405K / AC415K / AC420K A AC405K ： Suitable for high-speed continuous cutting with excellent resistance to wear and plastic deformation. AC415K ： First recommended grade for cast iron turning provides stability and long tool life in a wide range of processes. AC420K ： Superior fracture resistance provides excellent stability in interrupted unstable cutting and when cutting mill-scaled work.

• Improvements to super FF-TiCN coating grain and hardness provide significantly improved wear resistance. Newly developed stress control technology enhances micro-grained α Alumina (FF-Al O ) coating for superior reliability.

2 3

• Coating Structure

Ș

Micro-grained Alumina (FF-Al O )

2 3 Improved adhesion and peel-off

Coating stress control technology reduces abnormal

damage caused by chipping.

ChippingChipping

Super FF-TiCN

Ultra-fine grained, ultra-hard TiCN coating increases wear resistance 1.5 times.

AC400K Series Conventional

Coating Coating

AC405K/AC415K Wear Resistance

600

• AC405K

500

AC415K

• Competitor’s

400 Product A (K05)

• Competitor’s Product B (K10)

AC415K Chipping Resistance

10,00010,000

Chipping Resistance

1.5

Improved Times

8,000

6,000

4,000

2,000

100 0

Flank Wear Width = Cutting Time Until 0.3mm (min) Tool Product C (K10)

Work Material：FCD450(Round Bar) Insert：CNMG120408N-GZ Work Material：FCD450 Insert：CNMG120408N-GZ

AC420K Fracture Resistance

FCD450 Grooved (Heavy Interrupted Acceleration Test) Edge Wear Comparison (After 150 sec)

AC420K

Competitor’s Product D (K15) Competitor’s

(K20) Work Material：FCD450 Toolholder：PCLNR2525-43 Insert：CNMG120408N-GZ

100 150 200 300 Cutting Conditions：v =350m/min f=0.25mm/rev a =1.5mm Wet

c p Tool Life (sec)