424 Каталог TUNGALOY 2007 Режущий инструмент Точение Фрезерование Сверление Стр.

Каталог TUNGALOY 2007 Режущий инструмент Стр. 0424 ENG Lab2u

Info (3) Honing Honing specifications for DSX Round the R portion in large After regrinding check the following before use The difference of the lip heights is kept within 0.02 mm. There is no damaged portion on the cutting edges left. Cutting edges are properly honed. No grinding burrs left. The honing angle 0 and width T should be varied depending on the drill type diameter and work material. Recommended honing specifications are given in the Table below. Honing procedures (refer to Fig. 3) Round the R portion shown in Fig. 3 in large. Then roughly hone the cutting edge lines by using an electro-deposited diamond file of around 170 grit. Carry out finish honing by using a diamond hand stick of 400 to 600 grit. For DSX type drills there is no need to hone the thinned portions. The honing width should be changed depending on the drill diameter. For smaller side of diameter the width should be in smaller side of values given in the Table.