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Rectangular uniform laser pulse impact strengthening and forming system and application method thereof

A laser pulse and impact strengthening technology, which is applied in the field of laser pulse peening and beam shaping and homogenization, can solve the problems of low laser pulse energy and unsuitability

Pending Publication Date: 2021-02-19
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Benefits of technology

This new method allows for precise control over the amount of light emitted by an externally-shaped device that forms tiny shortened lasers called microplasma or nano plasmas (NP). These devices are used during various scientific experiments where they help create patterns without damaging them themselves. They also allow for more accurate analysis compared to previous methods like XRF techniques. Overall this innovation improves efficiency and precision in analyzing sample properties.

Problems solved by technology

This technical problem addressed in this patents relates to improving laser pulses for various applications such as machining or welding processes while avoiding issues like excessively distributed residue stresses due to noncircularity of lasering points used during laser processing.

Method used

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  • Rectangular uniform laser pulse impact strengthening and forming system and application method thereof
  • Rectangular uniform laser pulse impact strengthening and forming system and application method thereof

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Embodiment Construction

[0036] The specific implementation manner of the present invention will be described in more detail below with reference to schematic diagrams. The advantages and features of the present invention will be more apparent from the following description. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0037] In the following, if the methods described herein comprise a series of steps, the order of these steps presented herein is not necessarily the only order in which these steps can be performed, and some of the described steps may be omitted and / or some not described herein. Additional steps can be added to the method.

[0038] In the existing technology, most of the current laser pulse shock technologies in my country use circular laser spots, and the gaps between the spots are avoided by adjusting the overl...

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Abstract

The invention relates to a rectangular uniform laser pulse impact strengthening and forming system and an application method thereof. The system comprises a laser generation module, an external optical shaping module and a sample piece module, wherein the laser generation module is configured as a nanosecond laser for outputting nanosecond laser pulses; the external optical shaping module comprises a shaping curved mirror group or a shaping curved combined mirror, and is configured to shape the nanosecond laser pulses to form rectangular uniform nanosecond laser pulses; and the sample piece module comprises a plurality of sample pieces to be subjected to a laser pulse shot blasting technology and materials for forming the sample pieces. The application method is to apply the laser pulse shot blasting technology to the sample pieces and the materials for forming the sample pieces by adopting the system. The system and the method solve the problems generated by adopting circular laser spots in the prior art and the problems that the conventional domestic square pulse laser outputs low laser pulse energy and is not suitable for the laser pulse shot blasting technology.

Description

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Claims

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Application Information

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Owner SHANGHAI JIAO TONG UNIV
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