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Laser impact processor for Nd glass

A laser shock and neodymium glass technology, applied in the field of laser applications, can solve the problems of low energy of the laser generating device, and achieve the effect of reducing the volume and weight, simple structure and easy debugging.

Inactive Publication Date: 2003-12-17
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this method, no improvements are made to the defects of low energy of existing laser generators and pollution to the environment

Method used

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  • Laser impact processor for Nd glass
  • Laser impact processor for Nd glass
  • Laser impact processor for Nd glass

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Experimental program
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Embodiment Construction

[0013] see figure 1 , expressing in the box is the high-power intense laser generating device, the output power of which is gigawatt level, and the pulse width is 10 nanosecond level. Among them, 1 is a phosphate neodymium glass Q-switched laser oscillator with multi-transverse mode superposition output. The laser beam generated by the oscillator passes through the spatial filter and beam expander 2, and then enters the phosphate neodymium glass after being reflected twice by the mirror 3 The laser amplifier 4 and the Fresnel isolator 5 pass through the reflector 6 again and then output through the phosphate neodymium glass amplifier 9. 7 is the laser charging and triggering power supply, and 8 is the electro-optic Q-switching power supply. The two power supplies are respectively connected to the oscillator 1 and the amplifier 9, and the dotted line in the figure shows their connection relationship. In actual use, the connection, installation and debugging of the various com...

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Abstract

A laser impacting processor of Nd glass is composed of high-power laser generator consisting of Q-regulating laser oscillator, reflector, phosphate Nd-glass laser amplifier and Fresnel isolator, combined light beam transmission device with movable joint, and laser impact head. Said laser oscillator is multiple transverse modes added phosphate Nd-glass Q-regulating one. Its advantages include compact structure, small size, light weight and no pollution. It can be used for impact processing of metal part.

Description

technical field [0001] The present invention relates to laser application technology. Background technique [0002] Laser shock processing (LSP) is a newly developed laser processing technology. Its working principle is to use high-power laser to irradiate the surface of metal materials to generate high-temperature, high-density and high-intensity plasma, thereby forming high-intensity shock stress waves, which act on the surface of metal workpieces or materials to make the surface layer Plastic deformation to improve the fatigue resistance of metal materials and prolong the service life. In the existing neodymium glass high-power laser devices, the laser oscillator is a single transverse mode output, which has the advantage of a relatively small divergence angle. However, the output energy of this laser oscillator is very small, which cannot meet the requirements of this application, and multi-stage amplification is required during use, which complicates its structure. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/00B23K26/18C21D10/00H01S3/11
Inventor 吴鸿兴郭大浩王声波戴宇生夏小平
Owner UNIV OF SCI & TECH OF CHINA