Каталог Stellram токарный инструмент - страница 198

Заказ инструмента: http://steelcam.org 8 (343) 382-52-03 | sales@sverla-ekb.ru Turning Technical Top Rake & Effective Cutting Angle Top Rake Turning Inserts Positive: Produces low shearing stress and may eliminate vibration during finish – +machining, machining of long workpieces, -6° or poor workholding. 5° +6° 5° –6° -6° Negative: Produces larger shearing stress which causes a high chip strain. It is much stronger in comparison to the positive rake and requires good workpiece and tool stability. 6° 6° Effective Cutting Angle The position of the insert seat determines the cutting rake: • This can be negative or 0°. • The effective cutting angle is also determined by the insert geometry located on the seat, as this could be flat face or a chip breaker and it could change the effective cutting angle. • The effective cutting angle is the sum of the angle in the insert seat and the geometry of the seated inserts. ␥<0 ␥>0 ␥> 0 ß ß ß ␣ ␣ ␣ www.kennametal.com C197