Self-adaption control method for laser engraving

Abstract

The invention discloses a self-adaption control method for laser engraving, and belongs to the technology of laser surface engraving. The technique and method related to the invention comprise the steps of selecting a laser device, conducting match testing between laser control parameters and engraving power, measuring laser engraving energy density, selecting a laser engraving technique and testing an allowable range, conducting self-adaption match control between laser engraving technological parameters and motion parameters, and conducting laser engraving machining on multiaxial laser engraving equipment. On the basis that according to traditional laser engraving, single laser technological parameters are input, matching control of laser power and machine tool is introduced, optimum selection of laser engraving parameters is achieved, the laser engraving precision and quality of laser engraving at acceleration and deceleration positions in the laser engraving process can be better achieved, and the engraving technique is more intelligent.

Description

technical field [0001] The invention relates to the field of aerospace surface manufacturing, in particular to an adaptive control method for laser engraving. Background technique [0002] With the design of a large number of stiffener structures for aerospace aircraft mechanism components, the structural form is becoming more and more complex. In order to solve the processing of these complex surface parts, the chemical milling process is adopted for aerospace aircraft structural parts. The engraving of the chemical milling pattern is a key step in the entire casing chemical milling process, which is to carve the designed pattern on the protective layer of the part to be chemical milled and realize the peeling. At present, lasers are widely used at home and abroad to engrave patterns for parts chemical milling. [0003] Patent CN102995019A provides a titanium alloy milling process, using laser and digital technology, by controlling the laser energy and the thickness of th...

AI Technical Summary

Problems solved by technology

[0004] Although the existing laser engraving process and method provide the manufacturing method of plane and curved surface laser engraving, there are still some difficult problems to solve: First, the laser processing parameters generally use the fixed parameters after the experiment, which cannot be adapted to machine tool processing Velocity, acceleration changes during the process, burn-out at corners or starting points

The second is that in laser engraving, a fixed incident angle is often used for processing plane processing. In three-dimensional surface processing, the incident angle needs to be changed in real time, resulting in inconsistent manufacturing quality standards, and even partially unable to meet the actual processing situation.

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