End milling cutter for processing nonferrous metal

Abstract

The present invention discloses an end milling cutter for processing nonferrous metal, comprising a cutting part and a handle part, wherein the whole cutting part is provided with a plurality of peripheral cutting edges spirally extending from a bottom end to the handle part; a spiral chip removal slot is disposed between two adjacent peripheral cutting edges; in the radial plane of the cutting part, two included angles formed by a connecting line from each peripheral cutting edge to a rotation centre of the end milling cutter and a connecting line from two adjacent peripheral cutting edges to the rotation centre of the end milling cutter are not dimensionally identical; the difference of the two included angles is [alpha], wherein the absolute value of [alpha] is greater than 0 degree but less than or equal to 30 degrees. The end milling cutter for processing nonferrous metal has the advantages that the structure is simple, resonances generated during cutting process can be avoided, the resonance trend during the cutting is reduced, and the surface quality of processed workpieces is improved.

Description

technical field [0001] The invention relates to the field of metal cutting, in particular to an end mill for nonferrous metal processing. Background technique [0002] Due to their own characteristics, non-ferrous metals are relatively easy to obtain a high metal removal rate. Currently, there are many types of tools dedicated to high metal removal rates on the market. However, as the requirements for the processing of non-ferrous metal products are getting higher and higher, in addition to requiring a higher metal removal rate, the surface quality of the processed material must also be considered. The peripheral edges of the existing end mills are equidistantly distributed, and resonance is likely to occur during cutting, which seriously affects the improvement of processing quality; in addition, the helix angle of the existing end mills’ peripheral edges is very large, and it is generally easy to achieve low hardness and low melting point. Deep and messy tool marks remain...

AI Technical Summary

Problems solved by technology

The peripheral edges of the existing end mills are equidistantly distributed, and resonance is likely to occur during cutting, which seriously affects the improvement of processing quality; in addition, the helix angle of the existing end mills’ peripheral edges is very large, and it is generally easy to achieve low hardness and low melting point. Deep and messy tool marks remain on the surface of non-ferrous metal materials, which affects the appearance and surface quality of non-ferrous metal products, and because the clearance angle of the peripheral edge of the end mill is very large, the entire cutting part has no smoothing and anti-vibration structure, in the case of serious scratches on the surface of the workpiece, the subsequent surface treatment process cannot be carried out, resulting in the scrapping of the workpiece and increasing the cost of manufacturing

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