Expression of the Self-Sharpening Mechanism of a Roller Cone Bit during Wear Due to the Influence of the Erosion Protection Carbide Coating

Roller cone drill bits are used in drilling larger diameter wells. The efficiency of the roller bit depends on wear rate materials that forms teeth, which crushes rock at bottom well. To prevent excessive wear, research has largely focused study and determination abrasion-resistant materials. In our work, we investigated mechanism a whose wear-resistant teeth protected by hard metal coating welded onto teeth. difference between material properties erosion-protective carbide tooth steel leads to uneven order determine changes, carried out detailed studies through was out, parameters is made. principle their coating, determined research, indicated guidelines could be basis for development as well problem applying an erosion protection studied type bits.