Method for manufacturing femtosecond laser complex components in large batch

A femtosecond laser and manufacturing method technology, applied in manufacturing tools, laser welding equipment, image data processing, etc., can solve problems such as low efficiency

Active Publication Date: 2018-07-24
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI +1
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  • Application Information

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Problems solved by technology

[0010] The laser processing accuracy of large and complex components is affected by the cumulative error...

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  • Method for manufacturing femtosecond laser complex components in large batch
  • Method for manufacturing femtosecond laser complex components in large batch

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Embodiment Construction

[0016] Fine manufacturing and fine engraving of patterns on the surface of large components such as satellite solid-surface antenna transmitters, radar stealth frequency selectors, and thin-walled cylinders of engine casings, such as the use of conventional laser fixed-position single-point processing combined with component movement to achieve large-scale curved surfaces Graphic manufacturing, not only the processing efficiency is low, but also the mechanical comprehensive precision of the large-stroke device directly affects the manufacturing precision of the pattern.

[0017] In order to improve the quality and efficiency of laser manufacturing on the surface of large and complex components, this project proposes a large-scale three-dimensional pattern precision segmentation and unit pattern online splicing manufacturing technology, which divides large components into multiple processing areas. Laser focal depth and galvanometer scanning range, design a reasonable area divis...

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Abstract

The invention provides a method for manufacturing femtosecond laser complex components in a large batch. The surface processing of the complex component comprises: setting, according to the area and the focal depth of a laser processing region, a constraint condition and a region growing algorithm by using a complex component model reconstruction and surface processing pattern splicing algorithm;dividing the processing region, simplifying the region boundary to obtain the processing region, extracting the key features of the processing pattern types and layout features; designing a slicing algorithm according to the process of periodic and non-periodic layout in order that the processing pattern is automatically and quickly laid out on the surface of the complex component; by using the processing region division and pattern segmentation algorithm and setting the element type and combination in the processing pattern, obtaining the intersection of the element and the processing regionboundary and classifying the sub-pattern to the corresponding processing region; by using processing pattern real-time detection and online splicing manufacturing technology and by setting and installing a high-precision CCD camera, obtaining the video image of a processed part, recognizing the boundary of the processed pattern in real time based on an image processing algorithm, and then according to the boundary information of the pattern to be processed, predetermining the registration error of the two processing patterns, obtaining a required correction transformation parameter, and achieving online splicing manufacture in a laser processing process.

Description

technical field [0001] The invention belongs to the field of advanced laser manufacturing, and relates to a surface processing and manufacturing method of a femtosecond laser complex component. The method uses complex component model reconstruction and surface processing pattern splicing algorithm, processing area division and pattern segmentation algorithm, real-time detection of processing pattern and online splicing manufacturing technology to process complex component surface. Background technique [0002] A new type of light source appeared in the 1960s, which has the characteristics of good monochromaticity, good directionality, good coherence, and energy concentration. A femtosecond light pulse is defined as a duration of 10 -12 s-10 -15 s laser pulse, this laser pulse has the characteristics of extremely high peak power, wide spectral width and extremely short laser emission time. With its unique ultra-short duration and ultra-strong peak power, the femtosecond la...

Claims

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Application Information

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IPC IPC(8): G06T3/40G06T7/10G06T7/62B23K26/362
CPCB23K26/361G06T3/40G06T3/4038G06T7/10G06T7/62G06T2200/32G06T2207/30164
Inventor 李明姜澜
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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