An article about drill bit classification and advantage.
Home › Product News › An article about drill bit classification and advantage.
An article about drill bit classification and advantage.
As we all know, the correct choice of cemented carbide drills bit is of great help for improving drilling productivity and reducing the cost of processing each hole. There are four common carbide drill bits in daily life. They are solid cemented carbide drills, cemented carbide indexable insert drills, welded cemented carbide drills, and replaceable carbide drills. Each kind of drill bit has benefits suitable for specific processing conditions, so what are the advantages of different cemented carbides?
The solid carbide drill bit, as a kind of centering function, has a complete range of types and can be used for deep hole processing. It has the advantages of higher processing accuracy and regrind and reuse. Generally, it can be regrinded 7 to 10 times. In the process of processing, we can reduce our processing costs. The cemented carbide indexable insert drill bit is a disposable insert without centering function. It has the advantages of lower cost, wider range of correspondence, and rich variety. Drills with cemented carbide indexable inserts can process a wide range of apertures, and the processing depth ranges from 2D to 5D (D is the aperture), which can be applied to lathes and other torsion processing machines.
The welded hard alloy drill bit is made by firmly welding a hard alloy tooth crown on the steel drill body. It adopts a self-centering geometric edge type, which has small cutting force and the drill bit can be re-grinded 3 to 4 times. Its main advantage is that it can achieve good chip control, the surface finish of the processed hole is good, and the size and positioning accuracy are also good. The main applications are cnc machining centers, CNC lathes or other high-rigidity, high-speed machine tools.
The replaceable cutter head type cemented carbide has a centering function and a complete range, and the same cutter shaft can also be equipped with various diameter cutter heads, which can correspond to different processing materials. In addition, the processing efficiency is also remarkable, and the processing accuracy is relatively high. When processing steel materials, the steel drill body can change the crown at least 20 to 30 times, which can effectively reduce the production cost.
In actual production, when high-speed drilling is performed, a drill with self-centering function is required, which requires precision and efficiency. In addition to the centering function, the solid hard drill bit and the replaceable bit-type cemented carbide drill bit have high accuracy, and generally can reach the IT6-IT9 level. Therefore, at this time, we will choose solid hard drill bits and replaceable bit type cemented carbide drill bits. Between the two, the rigidity of the solid carbide drill bit is more superior.
Write a Comment