End mill with special groove and micro edge structure based on bionics

Abstract

The invention provides a bionics-based end mill with a special groove profile and a micro blade structure. The cutting edge part comprises peripheral cutting teeth and a chip pocket, the tooth number of the peripheral cutting teeth is 4, the peripheral cutting teeth consist of a first front mill surface, a second front mill surface and a rear mill surface, the radial profile of the first front mill surface is linear, the radial profile of the second front mill surface is in the shape of a parabola, and the coordinates of all points on the radial profile of the second front mill surface meet a parabola equation; the radial profile of the rear mill surface is linear; the chip pocket comprises the two parts of a main groove and an auxiliary groove, the main groove is connected with the second front mill surface, the radial profile of the main groove is in the shape of a parabola, the coordinates of all points on the radial profile of the main groove meet the parabola equation, the auxiliary groove projects outwards and is connected with the main groove and the rear mill surface, and the coordinates of all points on the radial profile of the auxiliary groove meet an equation: y=ax3+bx2+cx+d. The end mill has excellent strength and can inhibit the production of zigzag chips during titanium alloy processing. The cutting process is smoother, the workpiece surface quality is improved, and the service life of the mill is prolonged.

Description

technical field [0001] The invention relates to a solid carbide end mill used for machining titanium alloys, and belongs to the technical field of end mills. Background technique [0002] Titanium alloy has excellent properties such as high specific strength, high temperature strength and corrosion resistance, and is widely used in aerospace, petrochemical, medical equipment, automobile industry and other fields. However, due to the high chemical activity, low thermal conductivity and small elastic modulus of titanium alloys, severe vibration and high cutting temperature during cutting, it is easy to aggravate tool wear and adversely affect production efficiency and surface quality. The structure of the end mill has a significant effect on cutting forces, vibration and temperature, and is a key factor in achieving efficient machining of titanium alloys. [0003] At present, when machining titanium alloys, it is difficult for general end mills to ensure high tool strength, g...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problem that the existing milling cutter is difficult to take into account the rigidity, chip removal and heat dissipation of the tool, and provides a vertical milling cutter with good rigidity, good chip removal and heat dissipation performance based on bionics with special groove type and micro-edge structure. milling cutter

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