Product Introduction:

Stainless steel has a low thermal conductivity, and the difficult-to-cut material has a large influence on the tool tip. An end mill with a large helix angle is advantageous for the life of the tool. As the hardness increases, the cutting resistance of high hardness materials increases. Large helix anglel is beneficial the tool life. On the other hand, a tool with a large helix angle is liable to cause an increase in cutting resistance. With right helix tool, the cutting resistance acts downward, thus the tool is likely to fall off. Therefore, it is necessary to use a high-rigidity tool shank. When the rigidity of the tool and sheet parts is low, end mills with a small helix angle may be used. The number of flutes is selected depending on the cutting method of the end mill. When cutting a groove with a width equal to the tool radius, a large-capacity chip flute is required. Usually, a 2-flute tool is used. For side cutting with small width, choose a multi-edge end mill with tool rigidity as priority. As the number of edges increases, the rigidity and machining efficiency (tool life) can be increased, but at the same time, the discharge of chips will be weaker. However, proper choice of cutting conditions can overcome the weakness of chip removal. Multi-flute is direction of future development.