What is the characteristics of different types of cemented carbide drills?

Overall hard alloy drill bit: There is a centering function, the type is complete, can correspond to deep hole processing, high processing accuracy, heavy-grinding, and effectively reducing processing costs.

Cemented carbide replacement blade drill bit: abandoned blade, low cost, convenient switching

Replace the cutter-type cemented carbide drill bit: there is a center of mind, the type is complete, the same cutting rod can be installed with a plurality of diameters, high processing efficiency, high processing precision, and a plurality of materials can correspond to different pieces. The cutter head is reducing cost.

The cemented carbide drill bit is an equipped with a drilling project. A drill bit used by the core drilling. Steel cylindrical drill body is named due to the inner tungsten carbide. The shape of the cemented carbide cutting tool and its number of inserts on the drill bit, the arrangement, and the insert angle, referred to as the bottom blade, the outer blade and the outer blade to ensure the gap of water and drain. The upper portion of the drill body is a wire buckle to connect the rock core tube, and the side of the drill bit is opened, and there is a water in the bottom lip. The sink and water ports ensure the circulation of the rinsing liquid, reaching the role of excluding rock powder and cooling drill. In order to increase the gap in the macadium, in order to increase the gap, the ribs are welded in the inner and outer wall of the hard metal drill. A needle-shaped self-grinding bit can be used in the hard layer of high abrasive resistance. Generally hard alloy drill bits are drilled into rock drills to stratigraphic stratum; the needle-shaped carbide drill bit can be drilled into VI-Qi-Level Rock.

In the manufacture The phenomenon of the block, the beginning of the edge of the cut off, this gap will exacerbate wear during cutting, severely reduce the use of the tools. Now there is a perfect way to solve this problem, that is, the drill bit is passivated, the main cutting edge passivation makes the cutting edge form a circular arc shape, reducing the drill edge blade, and can improve the surface quality of the workpiece after the drilling.

Passivation processing also called strengthening treatment, the cemented carbide drill will cause a very small R arc to form a very small R arc before passing through this process, making the cutting resistance dispersed, and can eliminate some of the cutting edges and ligaments Azipulating, thereby enhancing the rigidity of the blade.