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Characteristics of the effect of swirling gas jet assisted laser
percussion drilling based on machine vision
3. J. M. Fishburn , R. P. Mildren , D. Kapitan , M. J. Withford , D. J. Brown , and J. A. Piper , “ Exploring the explosive ablation regime of metals in nanosecond micromachining,” Proc. SPIE 3885, 453–460 (2000).
4. M. Stafe , C. Negutu , I. Vladoiu , A. N. Ducariu , and I. M. Popescu , “ Experimental investigation of the dimensions and quality of laser-drilled holes in metals,” Proc. SPIE 7426, 742614 (2009).
6. E. Kacar , M. Mutlu , E. Akman , A. Demir , L. Candan , T. Canel et al., “ Characterization of the drilling alumina ceramic using Nd: YAG pulsed laser,” J. Mater. Process Technol. 209, 2008–2014 (2009).
9. D. Low , L. Li , and A. Corfe , “ Effects of assist gas on the physical characteristics of spatter during laser percussion drilling of NIMONIC 263 alloy,” Appl. Surf. Sci. 154, 689–695 (2000).
13. C.-C. Ho , J.-J. He , and T.-Y. Liao , “ On-line estimation of laser-drilled hole depth using a machine vision method,” Sensors 12, 10148–10162 (2012).
15. S. Bandyopadhyay , H. Gokhale , J. Sarin Sundar , G. Sundararajan , and S. Joshi , “ A statistical approach to determine process parameter impact in Nd: YAG laser drilling of IN718 and Ti-6Al-4V sheets,” Opt. Laser Eng. 43, 163–182 (2005).
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In this paper, a machine vision-based system is used for in-situ
monitoring and characterization of the effect of swirling gas jet assisted laser
percussion drilling. Feasibility of laser percussion drilling on highly
reflective materials, i.e., Al5052 with the implementation of
assisting swirling gas jet, was explored. The influence of the gas jet type on
the mechanism of material removal and resulting spatter is reported. The
authors conclude that the swirling gas jet method greatly reduces spatter
formation around the hole exit during the laser-drilling process. Consequently,
in order to understand and monitor the gas jet effects in laser drilling,
real-time in situ metrology is employed to observe the details.
Compared with the results obtained when using a straight gas jet, laser drilling
with a swirling gas jet reduces the drilled hole debris by 0.69 and increases
the drilled hole efficiency by a factor of up to 1.5. Experimental results show
that both the drilling depth and machining quality can be greatly and
simultaneously improved. Effects of the swirling flow on
the drilling efficiency and spatter thickness of the holes are investigated.
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