carbide drill basic types

to choose the carbide drill is divided into four basic types : solid carbide drills, carbide indexable insert drills , welding and replaceable tungsten carbide steel drill bit crown . Each bit has advantages for specific processing conditions .

I. Solid carbide drills
Solid carbide drills suitable for use on advanced processing center . This drill carbide material with fine particles , in order to extend the service life , but also for the TiAlN coating, specially designed blade geometry type so that a drill with self-centering function , in most workpiece materials when drilling with good chip control and chip evacuation . The self-centering drill features and strict control of manufacturing precision ensures quality hole drilling , drilling without further follow-up after the tungsten steel deep processing .

II. carbide indexable insert drills
Install carbide indexable insert drill machinability aperture wide range of machining depth range of 2D ~ 5D (D is diameter ) can be used lathes and other rotating machines.

three . welded carbide drill
Welded carbide drill steel drill body is firmly welded a crown made ​​of cemented carbide . The use of self-centering drill bit of edge geometry , cutting force is small, for most workpiece materials can achieve a good chip control , machined hole surface finish, dimensional accuracy and positioning accuracy are high, do not have to follow-up fine processing . The drill bit using internal cooling method can be used for machining centers , CNC lathes or other high rigidity, high speed machines.

IV. replaceable carbide drill crown
Replaceable carbide drill crown is a recent development of a new generation drilling tool . It consists of steel drill body and replaceable crown overall combination of tungsten steel , tungsten steel with welded glass cutter compared precision comparable, but the crown can be replaced, thus reducing processing costs, improve drilling productivity. This drill obtain precise pore size increments and has a self-centering function, so high precision aperture .

tungsten steel drill body with precision grinding crown interactions between V-shaped groove connecting the lock mechanism interlocked to ensure the weld drill assembly having the same drill carbide dimensional accuracy and rigidity . Meanwhile , this locking mechanism with only one correct position, so that the crown is easy to install to the matching rod , thus can guarantee when replacing crown repeat positioning accuracy. When tightening the locking screw through the lever , crown / drill body assembly firmly locked to each other , the connection stiffness competent enough big feed , high- speed high productivity hole machining requirements. Seco-Carboloy adoption of advanced manufacturing carbide injection molding process with a high crown material uniformity , so that the crown has a uniform intensity and uniform heat distortion performance. Seco company currently offers three specific types CrownLoc drill blade geometry : the first one is a conventional passivation edge radius , blade width and inverted cone angle universal geometric blade type, suitable for processing most types of steel materials ; the second is a wide belt and chamfering blade edge geometry type, suitable for machining cast iron materials ; a third type can reduce the cutting edge geometry and heat hardening , suitable for processing stainless steel and super alloys.

use carbide drill considerations: tungsten steel finishing precision selection carbide drill , you first need to consider drilling