At present, the use of cemented carbide drill bits in mechanical processing and manufacturing accounts for about 1/5 of the total processing. In addition, cemented carbide drill bits have high hardness, strength, wear resistance and corrosion resistance, which are highly regarded by processing companies. favorite.
How to choose a cemented carbide drill?
The choice of cemented carbide drill bit should be selected according to the usage scenario. The following are common usage scenarios.
1. Use on advanced machining centers
Choose solid carbide drill bits, which are made of fine-grained carbide materials. In order to extend the service life, they have also been coated. The specially designed geometric edge shape enables the drill bit to have a self-centering function. Good chip control and chip removal performance when working with workpiece materials.
2. Use on lathes and other rotary processing machine tools
Choose hard alloy indexable insert drills. This drill has a wide range of processing apertures, and the processing depth ranges from 2D to 5D (D is the aperture).
3. Machining center, CNC lathe or other high rigidity, high speed machine tools.
Choose welded cemented carbide drill bits or replaceable cemented carbide crown drill bits. This type of drill is firmly welded to a steel drill body with a cemented carbide crown or a steel drill body and a replaceable solid carbide crown. Combination. It adopts self-centering geometric edge shape with low cutting force, and can achieve good chip control for most workpiece materials. The processed hole surface has good surface finish, dimensional accuracy and positioning accuracy are high, and subsequent finishing is unnecessary.
What are the types of carbide drills?
Although there are many carbide drill bits, there are actually only four basic types: solid carbide drill bits, cemented carbide indexable insert drill bits, welded carbide drill bits and replaceable carbide crown drill bits.
