216 Каталог TUNGALOY 2007 Режущий инструмент Точение Фрезерование Сверление Стр.212

Каталог TUNGALOY 2007 Режущий инструмент Стр. 212 0216 ENG Lab2u

TAC Parting Grooving Tools Machining method of groove bottom close to a shoulder When machining the bottom surface of a groove by traverse feeding chip recutting can occur close to the wall. Stop the feed short of the wall (remaining width less than front edge width of insert and then remove the remaining stock by plunging. Comparison of surface roughness When machining the outer diameter of a workpiece by traverse feeding a ring like material can be produced as shown in the figure at right. In this case stop the feed short of the work end. (Remaining width to be less than the front edge width of insert andd then remove the remaining stock by plunging. Method of machining with full radius insert When machining a groove wall by using a full-radius insert plunge cut is recommended for roughing and retract feeding is possible for finishing. Cutting depth should be smaller than 5 of insert radius. for roughing for finishing V y Method of widening groove width of face groove When widening the width of a face groove choose the blade to fit to the largest diameter and then enlarge the width inward. Plunging Method of face profiling When profiling a face groove the tool should be fed from outer diameter towards the centre. The inner wall of the groove should be machined by plunging. Method of widening groove width of internal groove When widening the groove width of an internal groove the method used should be basically the same as that of external grooving.