the introduction of tungsten carbide drill

       A drill used by core drilling.The steel cylindrical drill body is named after the carbide cutting of tungsten carbide. The shape of the carbide cutting tool and the number of inlayings on the drill bit, the arrangement of the way, the different welding angle, known as the bottom of the blade, the blade and the outer edge, to ensure that there is water and discharge of the gap.





The upper part of the drill body is a threaded connection of the core tube, the drill body side of the open sink, the bottom of the lips also open a nozzle. Sink and outlet are to ensure the flow of rinse, to exclude the role of rock powder and cooling bit.





Carbide drill bit classification and grade:

1.YG3X (K01) hardness ≥91.5 in the tungsten cobalt titanium alloy wear resistance is the best, but the impact toughness is poor, suitable for cast iron nonferrous metals and alloys, broken fire steel, alloy steel small section of the high-speed finishing.



2.YG3 (K05) Hardness ≥90.5 Wear resistance after YG3X, more sensitive to shock and vibration, suitable for cast iron Nonferrous metals and their alloys Continuous cutting of semi-fine car, fine thread and reaming.



3.YG6A (K10) Hardness ≥91.5 is a fine grain alloy, good wear resistance, suitable for chilled cast iron, non-ferrous metals and their alloys semi-finishing, but also suitable for crushed steel alloy steel semi-finishing and finishing.



4.YG6 (K15K20) hardness ≥ 90 wear resistance higher, but lower than YG3, impact and vibration than YG3X as well. Suitable for semi-finishing and finishing of cast iron, non-ferrous metals and alloys, medium-cutting speeds for non-metallic materials.



5.YG8 (K30) hardness ≥89.5 use high strength, impact resistance, shock resistance than YG6 good, but the wear resistance and allow the cutting speed is low. Suitable for cast iron, nonferrous metals and alloys, non-metallic materials, low-speed roughing.