Reasonable Selection of Cemented Carbide Drill Significantly Improves Drilling Productivity

In the past, it was thought that the drilling process had to be carried out at a lower feed rate and at a cutting speed, which had been the case under the usual drilling conditions. Nowadays, with the advent of cemented carbide drills, the concept of drilling has also changed. In fact, by properly selecting the right carbide drill bit, can greatly improve the drilling productivity, reduce the cost per hole.

The basic types of carbide drills that available in four basic types: solid carbide drill, carbide indexable insert drill, weld carbide drill bit and indexable carbide teeth drill bit. Each drill bit has the advantage of being suited to particular processing conditions.

Solid carbide drills are suitable for use in advanced machining centers. The drill bits are made of fine-grained cemented carbide for extended service life and are coated with a specially designed geometrical blade that provides a self-centering feature for drilling the most workpiece materials with good chip Control and chip removal performance. The self-centering function of the drill bit and the tightly controlled manufacturing accuracy ensure the drilling quality of the hole without the need for further finishing after drilling.

Welded Carbide Drill bits are made of solid carbide crowns welded to a steel drill body. This kind of drill adopts self-centering geometrical edge type, cutting force is small, can achieve good chip control for most workpiece materials, the hole surface finish is good, the dimensional accuracy and positioning accuracy are high, Processing. The drill is internally cooled and can be used in machining centers, CNC lathes or other high-rigidity, high-speed machines.