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Laser impact strengthening apparatus and laser impact strengthening treatment method for workpiece surface
Laser impact strengthening apparatus and laser impact strengthening treatment method for workpiece surface
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机译：工件表面的激光冲击强化装置及激光冲击强化处理方法
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摘要
The present invention provides a laser impact strengthening device for a workpiece surface. The apparatus includes a resonant cavity, utilizes fluid as a constraining layer, and the constraining layer is confined within the resonant cavity. When performing the laser shock strengthening process using the apparatus, since a resonant cavity exists, a shock wave that should be scattered to the outside is utilized, and a composite shock wave is formed by reflection of the resonant cavity and a collecting action, By acting twice or more on the workpiece surface, it is possible to perform an impact treatment multiple times with a single pulse, thereby greatly improving the energy utilization rate. And since a fluid constrained layer is restrict | limited in a resonance cavity and a shape is fixed, the subject that the thickness of the fluid constrained layer in a prior art is difficult to control and bad stability can be solved effectively. Therefore, the apparatus can improve the effect and reliability of the laser shock strengthening, and the utilization prospect is good. [Selection] Figure 2
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