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 …

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 …

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 …

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 …

Statistical modelling and optimization of the laser percussion microdrilling of thin sheet stainless steel

M Moradi, H Abdollahi - Lasers in Engineering, 2018 - pureportal.coventry.ac.uk
In order to investigate the influence of process parameters on the hole geometric features,
experiments were conducted based on response surface methodology (RSM) as one of the …

Experimental and parametric studies of Nd: YAG laser drilling on austenitic stainless steel

P Rajesh, U Nagaraju, GH Gowd… - The International Journal of …, 2017 - Springer
Laser drilling has swiftly become an economical and well-regulated substitute to
conventional hole drilling methods such as wire EDM, punching, broaching, or other …

Investigation into the influence of pulse shaping on drilling efficiency

PW French, M Naeem, M Sharp… - International Congress on …, 2006 - pubs.aip.org
Laser percussion drilling is now a well-established material processing technique in the
aerospace industry. These holes are important as they allow boundary layer cooling of the …

Study into the effect of beam waist position on hole formation in the laser drilling process

BS Yilbas, M Sami - Proceedings of the Institution of …, 1996 - journals.sagepub.com
Laser drilling may improve by proper selection of the laser parameters. One of the important
parameters in laser hole drilling is the focus setting of the focusing lens. In the present study …

Effects of intrapulse structure on hole geometry in laser drilling

J Cheng, FJ Kahlen, A Kar - Journal of Laser Applications, 2000 - pubs.aip.org
Lasers have been established as a commercial tool for drilling holes in a variety of materials.
The beam quality and temporal shape of the laser pulse have been identified as critical …

Study of affecting parameters in laser hole drilling of sheet metals

BS Yilbas - 1987 - asmedigitalcollection.asme.org
In practical applications of laser drilling the quality of the drilled hole is the critical factor, and
recently methods of studying the influence on quality of the main process variables have …