تأثير سرعة القطع على انحراف البريمة و الإنهاء السطحي في عملية التثقيب العميق

Abstract EN

This research deals with studying the effect of cutting speed on the drill deflection and surface finish for producing deep holes.

Where experiments are done by using twist drills having (9, 10, 11) mm diameters by using samples of austenitic stainless steel under dry cutting conditions.

The results show that increases of the cutting speed limits from producing drilling length and it has negative effect upon magnitude of drill deflection and its vibration , it keeping in mind the drill deflection has small diameter will be more for the drill that has big diameter .

The speed and drill diameter have clear effect on flank wear land, in another word, with the increasing of speed and drill diameter, the flank wear land will increase.

Also, there is a direct proportional relationship between the speed and drill diameter in one hand and the surface quality on the other hand, therefore; the roughness increase when the speed and drill diameter increases.