Method for processing coolant hole of internal cooling bit
In the western market, there are high-speed steel and powder high-speed steel internal cooling tools, their processing technology is more complex, take the core material, hot pressing, cold drawing, core pulling material, hot spin and spiral way. From product applications, there are drills, taps and reamers for internal cooling.
About the processing of the inner cold hole, it depends on the material and the corresponding products. In general, cemented carbide is added to the core when the mold is fixed, and then the core material is different according to the hot melt type.
Tap is a single hole, in terms of high-speed steel, large caliber can be gun, drill or EDM to solve, small caliber, such as the outer diameter of 6 is difficult to solve. I heard the French company to provide timber Fuleikong can. Think of Germany's Cobalt collar, the British dormer, Japan's OSG, cold, this is all he has to provide materials.
