As the two most widely used drill bits of different materials, high-speed steel drill bits and carbide drill bits, what are their respective characteristics, what are their advantages and disadvantages, and which material is better in comparison.
The reason why high-speed steel drill bits are widely used is that the high-speed steel material has strong resistance to high temperature and wear resistance, and will not produce deformation and wear effects during high temperature cutting. Of course, it is slowly confirmed with the consumption of time. There will be losses, but things that are done in a time without wastage are very valuable. Secondly, the toughness of high-speed steel drills is much higher than that of other materials. Drilling drills must not only maintain stability and toughness requirements. It is also very high. Without good toughness, the drill bit is prone to chipping, which leads to unstable hole diameter when the drill bit is worn out.
The biggest advantage of carbide drills is their high hardness. The advantage of high hardness allows carbide drills to face many other high-hardness steels. However, the biggest disadvantage of carbide drills is poor toughness, which is very brittle and easy to chip. In the case of deep holes, If there is no special process as a support carbide drill bit is far from the effect of high-speed steel drill bit, of course, the hardness of the high-speed steel drill bit can withstand it.
In general, high-speed steel drill bits and carbide drill bits have the same characteristics, but the outstanding point of high-speed steel lies in the good toughness, while the outstanding point of carbide drill bits is the high hardness, and the contrast of the disadvantages is that the hardness of high-speed steel drill bits is not enough, and the high-hardness steel is processed.
It is not wear-resistant, and the toughness of carbide drills for processing deep holes is not good, so when choosing a drill, you must choose the corresponding drill according to the specific situation. For example, high-speed steel drills made of copper, iron and aluminum are more suitable than carbide drills. The DTH high-hardness carbide drill bit will be more durable than the high-speed steel drill bit.
Post time: Nov-26-2021
