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Li Liu, 鹏 姚, Dongkai Chu, Xiangyue Xu, Shuoshuo Qu, Chuanzhen Huang. Laser-assisted Water Jet Machining of High Quality Micro-trap Structures on Stainless Steel Surfaces[J]. Chinese Optics. doi: 10.37188/CO.EN.2024-0004
Citation: Li Liu, 鹏 姚, Dongkai Chu, Xiangyue Xu, Shuoshuo Qu, Chuanzhen Huang. Laser-assisted Water Jet Machining of High Quality Micro-trap Structures on Stainless Steel Surfaces[J]. Chinese Optics. doi: 10.37188/CO.EN.2024-0004

Laser-assisted Water Jet Machining of High Quality Micro-trap Structures on Stainless Steel Surfaces

doi: 10.37188/CO.EN.2024-0004
  • Received Date: 01 Feb 2024
  • Rev Recd Date: 01 Apr 2024
  • Accepted Date: 29 Apr 2024
  • Available Online: 11 May 2024
  • The study systematically analyzes the impact of various parameters such as laser repetition frequency, pulse duration, average power, water jet pressure, repeat times, nozzle offset, focal position, offset distance between grooves, and processing speed on the surface morphology of stainless steel. The findings reveal that micro-groove depth increases with higher laser power but decreases with increasing jet pressure and processing speed. Interestingly, repeat times have minimal effect on depth. On the other hand, micro-groove width increases with higher laser power and repeat times but decreases with processing speed. By optimizing these parameters, the researchers achieved high-quality pound sign-shaped trap structures with consistent dimensions. We tested the secondary electron emission coefficient of the "well" structure. The coefficient is reduced by 0.5 at most compared to before processing, effectively suppressing secondary electron emission.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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