The application of end mills

The use of end mills? The number and length of cutting edges of end mills, as well as the different spiral methods, may all lead to differences in the objects used.
1. End mills with different numbers and lengths of blades
Select the number of cutting edges based on the cutting method of the end mill.
When cutting grooves with the same cutting width and tool diameter, a larger chip holding groove is required. In this case, a 2-blade end mill is generally selected. When performing side cutting with a smaller cutting width, choose a multi blade end mill.
Selection of blade length
Choose the length of the end mill blade based on the depth of the groove shape and other machining shapes.
2. End mills with different helix angles
The larger the helix angle of the end mill, the longer the contact length between the workpiece and the cutting edge. This can reduce the load accepted by the cutting edge per unit length, thus extending the tool life. However, at the same time, the cutting resistance will increase, so it is necessary to consider using a tool holder with high clamping rigidity.
For difficult to cut materials with low thermal conductivity of stainless steel and significant thermal impact on the cutting edge, large spiral angle end mills are used for cutting. In addition, the characteristics of the precision machined surface are modified due to the helix angle. For example, when smooth and precise machining is required, sometimes a large helix angle end mill can also be used.
When using a large spiral angle end mill, the cutting resistance will increase, and the force of the right spiral angle tool coming out will also increase. Therefore, it is necessary to take corresponding measures, such as using a tool holder with high clamping rigidity.
To maintain the rigidity of the cutting tool, a small helix angle end mill can be used.