Abstract
In micro-manufacturing, circularity of a drilled hole at entry and exit are important attributes which greatly influence the quality of a drilled hole. This study investigates the effect of five parameters in the circularity of drilled holes in pulsed Nd:YAG laser micro-drilling process. The drilling operation has been carried out on titanium nitride–alumina (TiN–Al2O3) composite, an important electroconductive ceramics suitable for wear and heating applications. The effect of various process parameters like lamp current, pulse frequency, pulse width, air pressure, and focal length of Nd:YAG laser micro-drilling on hole circularity at entry and exit has been investigated through response-surface-methodology-based experimental study. The parametric combination for optimal hole circularity at entry and exit has also been evaluated.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Meijer J (2004) Laser beam machining (LBM), state of the art and new opportunities. J Mater Process Technol 149:2–17
Tiwari G, Sarin Sundar JK, Sundarajan G, Joshi SV (2005) Influence of process parameters during pulsed Nd:YAG laser cutting of nickel-base superalloys. J Mater Process Technol 170:229–239
Ghoreishi M (2006) Statistical analysis of repeatability in laser percussion drilling. Int J Adv Manuf Technol 29:70–78
Kuar AS, Paul G, Mitra S (2006) Nd:YAG laser micromachining of alumina-aluminium interpenetrating phase composite using response surface methodology. Int J Mach Mach Mater 4:432–444
Ghoreishi M, Low DKY, Li L (2002) Comparative statistical analysis of hole taper and circularity in laser percussion drilling. Int J Mach Tools Manuf 42:985–995
French PW, Hand DP, Peters C, Shannon GJ, Byrd P, Watkins K, Steen WM (1999) Investigation of Nd:YAG laser percussion drilling process using factorial experimental design. In: Proceedings of ICALEO-99, Section C: 51–60
Bandhopadhayay S, Sarin Sundar JK, Sunderajan G, Joshi SV (2002) Geometrical features and metallurgical characteristics of Nd:YAG laser drilled holes in thick IN718 and Ti-6Al-4 V sheets. J Mater Process Technol 127:83–95
Jackson MJ, O’Neill W (2003) Laser micro-drilling of tool steel using Nd:YAG lasers. J Mater Process Technol 142:517–525
Yilbas BS, Yilbas Z (1987) Parameters affecting hole geometry in laser drilling of Nimonic 75. SPIE Lasers Motion Ind Appl 744:87–91
Yilbas BS (1988) Investigation into drilling speed during laser drilling of metals. Optics Laser Technol 20(1):29–32
Montogomery DC (1997) Design and analysis of experiments, 4th edn. Wiley, Singapore
Allen T (1981) Particle size measurements, 3rd edn. Chapman and Hall, London
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Biswas, R., Kuar, A.S., Biswas, S.K. et al. Characterization of hole circularity in pulsed Nd:YAG laser micro-drilling of TiN–Al2O3 composites. Int J Adv Manuf Technol 51, 983–994 (2010). https://doi.org/10.1007/s00170-010-2691-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00170-010-2691-6