Tungsten Carbide Ball-end Cutter

Tungsten carbide ball-end cutter is also called R-shaped cutter, usually mounted on miller for milling die steel, cast iron, carbon steel, alloy steel, tool steel, general iron and other materials. It has perfect cutting performance at high temperature. There are some advantages of tungsten carbide ball-end cutter:
1. Stable processing and high surface fineness. When using ball-end mill for processing, the cutting angle is changing continuously, almost no sudden changes;
2. Less consumption, high machining precision, it is the ideal tool for curve surface semi-finishing and finishing (The space of semi-finishing is generally twice longer than the finishing space);
3. Reduce the cutting radius, cutting linear velocity and improve the torque, which is beneficial for spindle motor running smoothly.

However, we should notice that when we are using tungsten carbide ball-end cutter:
1. Avoid using the nose of tool to fabricate the workpiece: Because the linear velocity of the nose of ball-end is zero. In other words, there is milling instead of cutting in this area, which coolant can not add into the cutting area and the cutting heat can not be effectively dispersed;
2. The beat way to machine the straight wall is contour shape processing, it should be noticed that avoid the ball-end process along the straight wall down;
3. Pay attention to the deep groove processing: The tool is easy to sink completely, due to the relatively small chip flutes ball head in the process to increase the viscosity of the material (such as copper), it will be broken easily at high feed speed. 

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