In the field of metal processing, carbide drill bits, with their outstanding wear resistance and high stability, have become indispensable cutting tools in modern manufacturing. This drill bit, made from tungsten carbide and cobalt powder through powder metallurgy process, is redefining the standard for efficient drilling.

Performance advantages of carbide drill bits:

Compared with high-speed steel drill bits, carbide drill bits exhibit significant performance advantages:

Outstanding hardness: HRA hardness can reach 90-93, making it suitable for processing high-strength materials

Strong wear resistance: The service life is 5 to 10 times that of high-speed steel drill bits

Excellent heat resistance: It can still maintain cutting performance at high temperatures of 800-1000℃

Efficiency improvement: Allows for higher cutting speeds and feed rates

Analysis of Key Parameters of carbide drill bits

When choosing carbide drill bits, the following parameters should be given special attention:

Slot design: Straight slots are suitable for non-ferrous metals, while spiral slots are suitable for steel parts and stainless steel

Top Angle: The standard 118° is highly versatile, while 135° is more suitable for stainless steel

Coating types: TiN coating improves lubricity, and TiAlN coating enhances heat resistance

Edge treatment: Sharp edges are used for fine machining, and chamfering treatment enhances the strength of the edge

Tips and precautions for using hard alloy drill bits

The correct usage method can maximize the performance of the drill bit

Clamping accuracy: Ensure that the runout is less than 0.02mm

Adequate cooling: The internal cooling design works best, while the external cooling must ensure sufficient flow

Parameter optimization: Adjust the rotational speed and feed according to the material properties

Timely grinding: When the wear exceeds 0.2mm, grinding should be carried out immediately