The Introduction of Tungsten Carbide Drills (1)
The tungsten carbide drills are mainly divided into 4 types that are solid tungsten carbide drills, tungsten carbide indexable inserting drills, brazed tungsten carbide drills, replaceable tungsten carbide tooth-end drills. Each kind of drills has its character for different machining requirement.
Solid tungsten carbide drills are suitable to be used in the advanced CNC center .This kind of driller made of fine grain size tungsten carbide material .In the meanwhile in order to prolong its service life., they are coated with TiAlN,in addition ,they have the self-centering function with special designation of geometry cutting edge .Consequently the solid tungsten carbide drills performance well in drilling most materials with good cutting-control and chip-removal strengths ,meanwhile the holes drilled do not need extra machining work owing to its self-centering function and strict control of manufacturing precision .
Tungsten carbide indexable inserting drills installed on the turning and other rotary machining lathes are available to machine the holes with wide range ,its machining depth is capable to reach 2D~5D(D stands for diameter)
Brazed tungsten carbide drills is welded firmly on the steel drilling body which take self-centering cutting edge with low cutting force ,they are capable to be controlled well in machining most of materials of work-pieces ,the holes drilled with high surface roughness ,size and geometry precision ,and do not need extra machining work .This kind of drills with inner-cooling designation are available in machining center,CNC laths or other high toughness and rotating machines .
