Steel Recommended Carbide Grades New New Grades AC805P / AC810P / AC820P / AC8025P / AC830P / AC1030U Selection Insert AC800P Series covers a wide range of machining applications from high speed to interrupted cutting. l All grades feature Super FF Coat, which has excellent wear and chipping resistance. l Versatile GE Type chipbreaker suited to high-feed applications. High efficiency, long tool life.  he ultra-thick alumina coating achieves excellent wear resistance at high speed cutting above 300 m/min AC805P: T under dry cutting conditions. AC810P: In addition to FF-TiCN, which has excellent peel-off and wear resistance, this grade features a tough, thick Alumina coating enhanced by newly developed grain growth control technology, excellent wear resistance and long tool life in high-speed, high-feed cutting. AC820P: In addition to FF-TiCN, which has excellent peel-off and wear resistance, this grade features a high- density structured FF-Al2O3 layer using new smooth surface treatment technology, and also employs coating thickness control technology to achieve excellent versatility, stability, and long tool life. AC8025P: Employs Absotech Platinum, a new CVD coating. This grade has excellent adhesion and chipping resistance thanks to the smooth surface treatment and reduction in tensile stress of the coating to achieve a stable, long tool life. AC830P: I n addition to FF-TiCN, which has excellent peel-off and wear resistance, this grade features a strengthened FF-Al2O3 layer using new stress control technology, and moreover provides excellent reliability and wear- resistance in heavy interrupted cutting to achieve long tool life. AC1030U: Employs Absotech Bronze, a new PVD coating and exclusive tough carbide substrate. This grade reduces adhesion and microchipping with a high-quality cutting edge to achieve excellent machined surface quality. Performance AC8025P l Wear Resistance (Medium-Speed vc=200m/min) Excellent wear resistance in medium-speed cutting. 0,30 0,25 Flank Wear Width (mm) Comp. B Comp. A Conv. A 0,20 ◆ ■ ◆ ◆ ◆ ● ■ ■ ● ● ◆ ■ ◆ ■ ■ ● ● 0,15 ■ ● ● ● ◆ ● ● ● ● ● ● ● ● ■ ● ● AC8025P AC8025P Conv. A ● ■ ● ● 0,10 ●● ● ● ● 0,05 ◆ ■ 0 20 40 60 80 100 Cutting Time (min) Work Material: 34CrMo4, Toolholder: PCLNR2525M12, Insert: CNMG120408NSE Cutting Conditions: vc=200m/min, f =0,2mm/rev, ap=1,5mm, Wet Comp. A Comp. B l Adhesion and Chipping Resistance Greatly improved adhesion and chipping resistance with an advanced coating and smooth surface treatment. 0,30 Flank Wear Width (incl. Chipping) (mm) 0,25 Comp. D 0,20 ■ ■ ● Conv. B 0,15 ■ ● ● ◆ ■ ● ◆ ◆ ■ ◆ ● ◆ ● ● ● 0,10 ■ ● ● ● AC8025P AC8025P Conv. B ◆ ● ● ● ● ◆ ■ ● Comp. C 0,05 ● 0 5 10 15 20 25 30 Cutting Time (min) Work Material: 15CrMo5, Toolholder: PCLNR2525M12, Insert: CNMG120408NGU Cutting Conditions: vc=300m/min, f =0,3mm/rev, ap=1,5mm, Wet, Comp. C Comp. D A6