Tungsten carbide drills are by rotation of the drill press and their own impact load broken rock. In rock drilling, drill bit high frequency withstand impact loads, and by twisting, bending, stretching, compression and other complex stress the role of the collision at high speed rotary environment undergo rocks, rock powders and mineral water, etc. wear and corrosion medium.
A drill core drilling is used. A cylindrical drill bit body welded steel due to tungsten carbide inserts carbide cutting tool named.
Tungsten carbide drills are divided into four basic types: solid carbide drills, carbide indexable insert drills, welded carbide drills and drill bits change carbide crown. Each drill has a working premise for a particular interest.
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