1355 Каталог INGERSOLL 2011 Режущий инструмент и инструментальная оснастка Стр.1357

Каталог INGERSOLL 2011 Инструмент и оснастка Стр. 1357 1355 Lab2u

GENERAL TECHNICAL INFORMATION TURNING AND GROOVING PRINCIPLE OF TURNING WITH T-CLAMP ULTRA PLUS TOOLS The clearance angle a is a function of the side cutting forces and is not constant as is the case with ISO inserts. aP r- .d v Clearance angle between the insert and workpiece The deflection is influenced by: Feed: f Depth of cut: ap Overhang: T Cutting speed: Vc Workpiece Material i When these factors are properly applied the insert (a) creates a "Wiperaction providing excellent surface quality and tolerance. FINISHING OPERATION: DIAMETER COMPENSATION A compensation factor for the finish diameter must be used in the final machining operation. After grooving to the desired diameter the machining direction changes to longitudinal turning. At this point deflection occurs. If machining continues without tool compensation corner A will penetrate the workpiecs as a result of the deflection phenomenon. (See picture) This will result in two different diameters 0D1 from the grooving operation and 0D2 from the turning operation. The difference between 0D1 and 0D2 is the change in diameter designated at Delta A. Tool compensation factor is calculated as shown: A 2 0D1- 0D2 2 Using the compensation factor will eliminate the difference in part diameter. Follow this simple procedure during machining. Recommended ap 1. Groove to the final diameter. 2.Pull the tool back with a value of A 2. 1357