Calibration Method of Laser Scanning Accuracy Controlled by Galvanometer

Abstract

The invention provides a laser scanning accuracy correction method controlled by a vibrating mirror. The steps are: using drawing software to draw 5 horizontal lines and 5 vertical lines in equal proportions to obtain 25 feature point area graphics; The proportion of the cardboard is printed on the cardboard; the standard cardboard is placed on the laser scanning focal plane, and the feature points are corrected sequentially through the correction software, so that the laser beam projected on the cardboard through the galvanometer is consistent with the laser spot on the standard cardboard. The corresponding feature points coincide to complete the laser scanning correction. The advantage is: compared with the traditional correction method, the present invention adopts the method of directly printing out the cardboard with standard 25 feature points, and then only needs to directly observe whether the laser spot projected on the cardboard coincides with the corresponding feature points; instead of first Through the method of laser output marking, and then measuring and point-by-point adjustment; the invention saves cumbersome correction steps and reduces the difficulty of correction.

Description

technical field [0001] The invention belongs to the technical field of metal powder laser melting and additive manufacturing, and in particular relates to a laser scanning precision correction method controlled by a vibrating mirror. Background technique [0002] With the continuous innovation and development of science and technology, the market competition has become increasingly fierce, and the continuous diversification of social needs has shortened the product update cycle. For some metals with special properties and complex structures in the fields of aerospace, ships and weaponry Parts, such as aero-engine turbine discs, are usually made of difficult-to-machine materials. Traditional methods of processing and manufacturing often have a long processing cycle, and the utilization rate of materials is extremely low, especially for parts with high complexity, even the manufacturing cannot be completed, and it is difficult to meet the market demand of the society. [0003...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects existing in the prior art, the present invention provides a galvanometer-controlled laser scanning precision correction method, which can effectively solve the time-consuming and poor accuracy of laser scanning precision correction due to human interference factors in traditional laser scanning correction. question

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