Laser and Water-Jet Fiber Coupling Technology for Water-Jet Guided Laser Micromachining

Abstract:

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The processing effect using water-jet guided laser micromachining technology is determined by the accurate coupling of focused laser and high speed water-jet. In order to realize the effective coupling, based on the analysis and calculation, a coupling unit with special structures was designed. The maximum angle of incidence was researched, which determined whether the total reflection occurred when laser transported in the water-jet. By the aid of fluid dynamical simulation, the coupling unit with uniform distribution of inner-cavity fluid field was designed. The attenuation of laser energy in water-jet fiber was investigated. Using appropriate laser wavelength, pulse energy and filtered and de-ionized water, energy attenuation in fiber was reduced. Experimental results showed that applying this coupling technology, perfect water-jet guided laser micromachining can be achieved.

Info:

Periodical:

Advanced Materials Research (Volumes 69-70)

Edited by:

Julong Yuan, Shiming Ji, Donghui Wen and Ming Chen

Pages:

29-33

DOI:

10.4028/www.scientific.net/AMR.69-70.29

Citation:

Y. Wang et al., "Laser and Water-Jet Fiber Coupling Technology for Water-Jet Guided Laser Micromachining", Advanced Materials Research, Vols. 69-70, pp. 29-33, 2009

Online since:

May 2009

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Price:

$35.00

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