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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 497Ultrashort Pulsed Laser Micromachining of...

Ultrashort Pulsed Laser Micromachining of Polycrystalline Diamond

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Abstract:

A femtosecond pulsed Nd:YAG laser was used to micromachine polycrystalline diamonds (PCD) and study the ablated microstructure characteristics under different irradiation parameters. With high laser intensity and low traverse speed, a micro cone with very smooth surface and clear edge can be obtained. There was almost no recast layer around the cone and no phase transition on the ablated surfaces was found. By contrast, the use of low laser intensity and high traverse speed could ablate only the grain boundaries without any damage to the diamond grits. These results suggest a need for further research in femtosecond laser micromachining of PCD for potential applications in fabricating new types of micro grinding wheels or diamond pencils.

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Periodical:

Advanced Materials Research (Volume 497)

Pages:

220-224

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.497.220

Citation:

Cite this paper

Online since:

April 2012

Authors:

Zeng Qiang Li, Qi Wu, Jun Wang

Keywords:

Femtosecond Laser, Micro Machining, Polycrystalline Diamond, Ultrashort Pulsed Laser

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