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Published on: May 15, 2017
[Thermodynamics process of laser drilling on copper surface]
Shi-Wen Li1, Qiu-Hui Zhang, Rui-Hua Niu
1School of Mathematics and Computer Science, Panzhihua University, Panzhihua 617000, China. lswdmm@126.com
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|July 12, 2013
Summary
This study details laser drilling on copper using nanosecond pulses, revealing micro-hole formation depends on energy deposition and plasma shock waves for material removal.
Area of Science:
- Materials Science
- Laser Physics
- Surface Engineering
Context:
- Investigating laser-material interactions is crucial for advanced manufacturing.
- Understanding micro-scale material removal processes informs precision engineering.
Purpose:
- To analyze the micro-morphology and thermodynamic processes of micro-holes created by ns laser pulses on copper.
- To elucidate the fundamental mechanisms governing laser drilling in metals.
Summary:
- Nanosecond laser pulses were used to drill micro-holes in copper, resulting in a central pit and surrounding uplift.
- Micro-hole depth increases with incident laser pulse energy.
- Successful laser drilling requires sufficient energy deposition for phase transitions (melting, vaporization, ionization) and the generation of a laser plasma shock wave to eject material.
Impact:
- Provides insights into laser drilling mechanisms for copper and other metals.
- Contributes to the development of precision laser-based material processing techniques.
- Enhances understanding of laser-plasma interactions in material ablation.
