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Laser manufacturing process control method based on acoustic wave monitoring

A manufacturing process and laser technology, applied in the direction of manufacturing tools, laser welding equipment, welding/welding/cutting items, etc., can solve problems such as structural size parameters and abnormal shape and structure, and achieve high-efficiency and high-quality laser processing and repeatability high effect

Inactive Publication Date: 2020-05-12
HEFEI INNOVATION RES INST BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A laser manufacturing process control method based on acoustic wave monitoring proposed by the present invention can solve the technical problems of structural size parameters and abnormal morphology caused by mismatching factors such as laser processing system, laser processing parameters and materials in the processing process

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  • Laser manufacturing process control method based on acoustic wave monitoring
  • Laser manufacturing process control method based on acoustic wave monitoring
  • Laser manufacturing process control method based on acoustic wave monitoring

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.

[0038] Such as figure 1 , figure 2 and image 3 As shown, the laser manufacturing process control method based on acoustic wave monitoring described in this embodiment, the online monitoring structure of laser manufacturing based on photoacoustic monitoring, the laser manufacturing process control online monitoring structure of photoacoustic monitoring includes a laser processing system, a A sample, an acoustic signal measurement system and a data acquisition and control system, the laser processing system includes a nanosecond laser and a scanni...

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Abstract

The invention discloses a laser manufacturing process control method based on acoustic wave monitoring and can solve the technical problems of abnormal component size parameters and shape organizationcaused by instability of a laser system and mismatching of process parameters. The laser process parameters are rapidly optimized by monitoring photo-acoustic signals online, and high-efficiency andhigh-quality laser manufacturing based on photo-acoustic monitoring is realized. The laser manufacturing process control method based on acoustic wave monitoring is implemented through steps as follows: S1, a sample is pretreated; S2, laser processing parameters are set, and processing is started in a specific environment; and S3, photo-acoustic signals are monitored online, the laser processing parameters are rapidly adjusted according to signal features, and the laser processing process is completed. Laser processing abnormity can be monitored in real time based on monitoring of the photo-acoustic signals, the laser processing parameters are rapidly controlled and optimized, and high-efficiency laser manufacture process can be controlled.

Description

technical field [0001] The invention relates to the technical field of laser precision machining, in particular to a laser manufacturing process control method based on acoustic wave monitoring. Background technique [0002] Traditional component processing methods include mechanical processing, chemical etching, photolithography and focused ion beam etching, etc. However, mechanical processing is easy to cause damage to the surface of materials, while chemical etching requires the development of specific corrosion solutions for specific materials, and is easy to pollute the environment. Photolithography and focused ion beam have high etching precision, but require special equipment and professional technical operations, and the cost is high. Laser processing technology is a non-polluting and economical non-contact processing method, and it can process almost any material, including some hard and brittle materials that are difficult to process by traditional processing metho...

Claims

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Application Information

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IPC IPC(8): B23K26/21B23K26/60B23K26/70
CPCB23K26/21B23K26/60B23K26/702B23K26/705B23K2103/52
Inventor 管迎春胡国庆王鹏
Owner HEFEI INNOVATION RES INST BEIHANG UNIV
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