Ultraprecise milling surface topography texture control method

Abstract

The invention discloses an ultraprecise milling surface topography texture control method. The method includes that a machining surface topography texture direction angle delta is set; a tool starting phase angle difference Delta<phi> of adjacent tool paths is determined according to the texture direction angle delta, tool path planning of a cutting area and a non-cutting area is conducted according to the tool starting phase angle difference Delta<phi>, and a tool path file is generated; and ultraprecise milling can be achieved by using the tool path file. By controlling the tool starting phase angle difference of the adjacent tool paths instead of controlling a starting phase angle of each row of tool paths, a starting process of moving of a spindle and various shafts is avoided, and controlling feasibility is greatly improved. In addition, by planning non-cutting paths, the tool starting phase angle difference of the adjacent tool paths is effectively controlled, and control for the ultraprecise milling surface topography is achieved.

Description

technical field [0001] The invention relates to the field of ultra-precision milling, in particular to a method for controlling surface topography and texture in milling, and is especially suitable for three-axis ultra-precision milling and high-speed milling. Background technique [0002] Processed surface topography has a significant impact on product quality and performance. Surface topography will directly affect the contact strength, corrosion resistance, wear resistance, sealing, fatigue resistance, fit properties, friction, lubrication, optical properties and heat transfer properties of the workpiece surface. Therefore, the control of the machined surface morphology is of great significance. [0003] In milling, due to the spatial position of the cutting edge in the rotational movement of the spindle, feed residue and line spacing residue are formed on the milled surface. In ordinary milling, since the row spacing is large and the feed per tooth is much smaller than...

AI Technical Summary

Problems solved by technology

When the feed rate per tooth is much smaller than the line spacing, the surface morphology is mainly determined by the line spacing residue, and the influence of the feed residue is relatively small, so the impact of the initial cutting phase angle of the tool path cannot be reflected

However, when the feed per tooth is close to the line spacing, the impact of the initial cutting phase angle of the tool path on the feed residue cannot be ignored, so it also has a significant impact on the machined surface morphology

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