Bit bearing durability is one of the main factors, which determine a drill bit performance results. To increase bit bearing durability, we carry out chemical and heat treatment followed by a metallurgical survey with a 50 to 1500-power microscope. Silver-plated parts of the bearing are checked with image analyzer IA-32, which defines a grain size (10-200 µm) and coating thickness (20-30 µm) with visualization eliminating the risk of a personal assessment. Conducting such surveys allows only high quality components to be used in the manufacturing process.
Volgaburmash and Uralburmash are Russia’s largest companies producing rock-cutting tools