210 Каталог ISCAR 2017 Токарный металлорежущий инструмент и инструментальная оснастка Стр.206

Каталог ISCAR 2017 Токарный инструмент и оснастка Стр. 206 0210 ENG Lab2u

ISOTURN INSERTS USER GUIDE Edge Preparation and Recommended Applications T-Land Sizes for Standard Items Grade IN22 IN23 IS80 IS8 IS9 IN11 IB50 IB55 IB85 IB90 IS6 IW7 IN420 T (mm) 0.20 0.20 0.20 0.20 0.10 0.20 0.14 0.14 0.14 0.14 0.20 0.10 0.2 a° 25° 25° 25° 25° 25° 20° 20° 20° 20° 20° 25° 25° 25° super finishing E For semi-finishing and finishing f < 0.2 mm/rev T For semi-roughing and roughing f > 0.2 mm/rev S For heavy roughing and interrupted cutting Silicon Nitride for Cast Iron and High Temperature Alloys What is ISCANITE ISCANITE is a cutting tool material containing over 90 percent silicon nitride. ISCANITE is produced by unique hot pressing methods to achieve full density, and provides superior toughness along with high thermal-shock resistance. These characteristics make ISCANITE an ideal cutting tool material with impact resistance near that of coated carbides, and the heat and wear resistance of aluminum-oxide ceramics. Which materiaI can ISCANITE machine ISCANITE is primarily used on cast iron and high temperature alloys, brass and composites. Steel is the only material usually avoided because of various chemical incompatibilities. ISCANITE Benefits ISCANITE will increase your productivity, reduce your machining costs and can drastically reduce tool forces. ISCANITE increases productivity through additional metal removal rates and can fully utilize a machine's potential. Machining costs are reduced with increased tool life, along with less downtime for indexing, gauging, and adjustments. Cutting Speed and Cutting Force It is preferable to machine at higher cutting speeds and lower cutting forces (Point A is preferred over Point B.) In this case, pressure is reduced on the workpiece and any tendency of the workpiece to move or vibrate. If the available machine power is higher, or the machine can be stepped up. The use of higher cutting speeds of 750 m/min is possible, with the same cutting force as at Point B. (See Point C.) The positive influence of cutting speed and feed on machining conditions: higher cutting speeds are recommended and possible for silicon nitride inserts. O LL 0 O O LL O) _C O Cutting Speed Vc m/min 206 ISCAR