end mill

Abstract

The invention relates to the structural design technology of special end mills for stainless steel and titanium alloys. Its blade adopts unequal helix angle structure. The advantages of the present invention are: 1) Using unequal helix angles, compared with previous products, can effectively suppress high-frequency vibration; 2) Adopting stable and excellent TIALN coating with heat resistance, can process materials with higher hardness; 3) Adding a long-shrinking shank type (outer diameter larger than the shank diameter) saves materials used for end mills; 4) Adopting a curved cutting edge that can suppress the height difference in vertical processing to achieve a good processing surface and improve the acceptance environment of cutting tools.

Description

technical field [0001] The invention relates to the structural design technology of a stainless steel and titanium alloy special end mill, and belongs to the technical field of cutting tools. Background technique [0002] The processing requirements of aerospace, automobile and machine tool manufacturing industries are getting higher and higher, especially in difficult-to-cut materials such as stainless steel and titanium alloys. Due to the vibration of end mills, it is difficult to achieve high efficiency, high precision and long life in the processing process. Smooth processing; at the same time, the shank and blade of traditional end mills generally have the same outer diameter, but the shank only has the function of clamping. If it is set to be consistent with the outer diameter of the blade, it uses more materials, resulting in material waste; At the same time, during the processing of the end mill, due to the existence of the height difference, the cutting tool is subj...

AI Technical Summary

Problems solved by technology

[0002] The processing requirements of aerospace, automobile and machine tool manufacturing industries are getting higher and higher, especially in difficult-to-cut materials such as stainless steel and titanium alloys. Due to the vibration of end mills, it is difficult to achieve high efficiency, high precision and long life in the processing process. Smooth processing; at the same time, the shank and blade of traditional end mills generally have the same outer diameter, but the shank only has the function of clamping. If it is set to be consistent with the outer diameter of the blade, it uses more materials, resulting in material waste; At the same time, during the processing of the end mill, due to the existence of the height difference, the cutting tool is subjected to force at a point, which will cause a certain vibration phenomenon. At the same time, the stress environment of the cutting tool cutting edge is not good, which is easy to cause damage.

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