The effect of laser peak power and pulse width on the hole geometry repeatability in laser percussion drilling
GKL Ng, L Li - Optics & Laser Technology, 2001 - Elsevier
In this work, the two main factors that influence the repeatability of the laser percussion
drilling process are identified. Experimental parametric analysis was carried out to correlate …
drilling process are identified. Experimental parametric analysis was carried out to correlate …
Repeatability characteristics of laser percussion drilling of stainless-steel sheets
GKL Ng, L Li - Optics and lasers in engineering, 2003 - Elsevier
An analysis on the repeatability of a laser percussion drilling process is conducted using a
flash lamp pumped Nd: YAG laser on 2mm thick stainless-steel sheets. Laser drilling …
flash lamp pumped Nd: YAG laser on 2mm thick stainless-steel sheets. Laser drilling …
Statistical analysis of repeatability in laser percussion drilling
M Ghoreishi - The International Journal of Advanced Manufacturing …, 2006 - Springer
This study investigates the effect of six parameters in the repeatability of drilled holes in laser
percussion drilling process by means of statistical techniques. Peak power, pulse width …
percussion drilling process by means of statistical techniques. Peak power, pulse width …
The influence of temporal pulse train modulation during laser percussion drilling
The temporal pulse train modulation during laser percussion drilling was found to effect
significant changes to the material ejection processes. In particular, distinct differences in the …
significant changes to the material ejection processes. In particular, distinct differences in the …
Comparative statistical analysis of hole taper and circularity in laser percussion drilling
The present study investigates the relationships and parameter interactions between six
controllable variables on the hole taper and circularity in laser percussion drilling …
controllable variables on the hole taper and circularity in laser percussion drilling …
Internal characterization and hole formation mechanism in the laser percussion drilling process
I Arrizubieta, A Lamikiz, S Martínez, E Ukar… - International Journal of …, 2013 - Elsevier
Laser percussion drilling is increasing its relevance in many industrial applications, being
used particularly in the aircraft industry in performing the micro-holes in nickel based alloys …
used particularly in the aircraft industry in performing the micro-holes in nickel based alloys …
Hole taper characterisation and control in laser percussion drilling
Small hole (< 1 mm diameter) drilling by lasers is widely applied in various manufacturing
processes. Hole tapering is one of the inherent manufacturing problems associated with …
processes. Hole tapering is one of the inherent manufacturing problems associated with …
Microdrilling of metals with ultrashort laser pulses
The pulse duration requirements for melting-free and burr-free drilling of metals have been
observed in detail. It will be shown that the highest process efficiency and hole quality can …
observed in detail. It will be shown that the highest process efficiency and hole quality can …
Drilling of micron-scale high aspect ratio holes with ultra-short pulsed lasers: Critical effects of focusing lenses and fluence on the resulting holes' morphology
Micro drilling employing ultra-short pulsed lasers is a promising manufacturing technology
for producing high aspect ratio holes, particularly on ceramic substrates due to the growing …
for producing high aspect ratio holes, particularly on ceramic substrates due to the growing …
An investigation into melt flow dynamics during repetitive pulsed laser drilling of transparent media
This paper presents an investigation into the dynamics of repetitive pulsed laser drilling of a
visually transparent media using a CO2 laser source. This enabled the use of a high-speed …
visually transparent media using a CO2 laser source. This enabled the use of a high-speed …