Judgment of Failure Form of Cemented Carbide Button

2022-06-08 Share

Judgment of Failure Form of Cemented Carbide Button


The main failure modes of cemented carbide button are abrasive wear, thermal fatigue, spalling, internal cracks, fracture of non-exposed parts of the carbide button, shear fracture, and surface cracks. Accurately judging the failure mode of cemented carbide ball tooth is an important prerequisite to analyzing its failure cause and taking measures to improve its life.


Each failure of cemented carbide button has its characteristics. Although several other failure modes have similarities, they can also find their characteristics as long as they are carefully observed. The difficulty is that the damage of spherical gear alloys is rarely seen with only one failure mechanism, and often several failure modes occur simultaneously. 

To figure out the main problem, one has to look closely at the balls on multiple failed bits used in the same place. For the carbide button in the same ring of the drill bit, the bearing capacity is very similar, so by observing a large number of carbide buttons on a ring at various stages, the main failure method can be found. During the observation process, the following aspects should be observed:


1. The place where the most damage to the carbide button occurs, and this damage often occurs;

2. The section of the ball tooth where the starting point of the fracture cannot be found should be included;

3. Multiple carbide buttons have the same type of crack origin.

ZZBETTER supplies a large number of cemented carbide buttons, which are produced from raw materials, with good product quality, wear resistance, corrosion resistance, high hardness, and long service life.


ZZBETTER’s tungsten carbide buttons:

Advantages of tungsten carbide buttons

1. Having unique working performance

2. High hardness and good wear resistance

3. Widely used in mining of various rocks and oil drilling.

4. Suitable for crushing very strong granite, limestone, and poor iron ore.

Applications of tungsten carbide buttons

1. Oil drilling and shoveling, snow plow machines, and other equipment.

2. Used for coal drilling tools, mining machinery tools, and road maintenance tools.

3. used in quarrying, mining, tunneling, and civil construction.

4. DTH Drill bit, thread drill bit, and other drill bits.

If you are interested in tungsten carbide products and want more information and details, you can CONTACT US by phone or mail at the left, or SEND US MAIL at the bottom of the page.

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