1272 Каталог KORLOY 2020 Инструмент и оснастка для станков по металлу Стр.L12

Каталог KORLOY 2020 Инструмент для станков по металлу Стр. L12 1272 Lab2u

Turning O The affects of cutting condition The most desirable machining means short machining time, long tool life and good precision This is the reason that proper cutting condition for each tools should be selected according to material’s properties, hardness, shapes, the efficiency of machine O Cutting speed Workpiece: S45C (180HB) Tool life criterion: VB = 0.2 mm Depth of cut: 1.5 mm Feed: 0.3 mm/rev Holder: PCLNR2525-M12 Insert: CNMG120408, Dry cutting 10 20 30 40 60 100 Workpiece: STS304 (200HB) Tool life criterion: VB = 0.2 mm Depth of cut: 1.5 mm Feed: 0.3 mm/rev Holder: PCLNR2525-M12 Insert: CNMG120408, Dry cutting (The tool life feature of M grade) Workpiece: GC300 (180HB) Tool life criterion: VB = 0.2 mm Depth of cut: 1.5 mm Feed: 0.3 mm/rev Holder: PCLNR2525-M12 Insert: CNMG120408, Dry cutting (The tool life feature of K grade) O Cutting Speed’s effects When the cutting speed increases up to 20% in an application, the tool life respectively decreases down 50% Although inversely, if the cutting speed increases up to 50% the tool life decreases 20%. On the other hand if cutting speed is too low (20-40m/min) Tool life shortens due to vibration Technical Information 12