The Introduction of Tungsten Carbide Drills
Replaceable tungsten carbide tooth-end drills are the new generation drilling tools developed in recent years consisting of steel body and replaceable tungsten carbide tooth-end tip .Comparing with brazed tungsten carbide drills ,its machining precision is similar ,but it is more cost-effective owing to the tooth-end tips are available to be replaced with high working efficiency. This kind of carbide drills with very high hole machining precision because of its self-centering function. The CrownLoc drills fromm Seco-Carboloy ,its body and tungsten carbide tooth-end tip is connected with V-shape groove and locked each other tightly.With this structure ,we can make the drills has the same machining precision and solid toughness as the brazed ones.In the meantime,this connection structure only has one correct coordination position, which made the tooth-end tips easy to be fixed onto the column with which to match,so as to achieve the position precision after replace the carbide tips repeatly .After locked with the V-shape structure ,its toughness is capable to bear heavy-duty,highly rotary speed and high machining efficiency of holes requirements .The tungsten carbide tooth-end tips in Seco-Carboloy are made with advanced injection moulding process ,making them with excellent material uniformity ,even toughness and same thermal deformation performance .
Now Seco is capable to produe three special types CrownLoc drills with special geometry cutting edges:the first one is general geometry cutting edge with common possivation radius on cutting edges ,edge band width and tap-chamfering ,which is available to drill most grades of steel ;the second one is the geometry cutting shape with comparatively wide edge-band and chamfering ,which is available to drill costing iron materials ;the third one with the geometry cutting edge to reduce cutting heat and machining hardening in process ,suitable to drill stainless steel and super alloys .
