As an excellent alloy material, cemented carbide plays a very important role in the field of industrial manufacturing and is known as "industrial teeth". Whether it is the production of tool materials such as turning tools, drills, and boring tools, or the processing of materials such as high manganese steel, stainless steel, and heat-resistant steel, cemented carbide is inseparable. How is cemented carbide actually applied?
There are three main types of cemented carbide drills: solid carbide drills, carbide indexable insert drills and replaceable carbide drills. Reuse can control the cost of processing. The cemented carbide indexable insert drill has a complete range of drills, which is convenient for tool change and does not have a centering function. The replaceable cutter head type carbide drill bit also has a centering function. It has a complete range, high machining accuracy and efficiency, and the cutter head can also be reground.
Although cemented carbide has the advantages of wear resistance, corrosion resistance, and high hardness, when the cemented carbide drill bit is drilling, the workpiece has a large torque, and the resulting thermal expansion and contraction phenomenon can easily cause the drill bit to break in the hole. When using carbide drills, what do we need to pay attention to to avoid this situation?
1. When the strength of the drill bit is acceptable, reduce the width of the chisel edge to avoid the wear of the drill bit by the axial force.
2. Different drill bits and cutting speeds should be selected for different materials.
3. When drilling materials with severe surface hardening, try to avoid friction on the cutting surface by the tool, which will cause large wear of the drill bit.
4. When cutting workpiece materials, pay attention to the use of cutting fluid, use it in time, and keep it lubricated.
5. Fine use of special high-performance alloy blades can reduce chipping and maintain good wear resistance
