Biswas, R and Kuar, A S and Biswas, S K and Mitra, S (2010) Characterization of hole circularity in pulsed Nd:YAG laser micro-drilling of TiN-Al(2)O(3) composites. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 51 (9-12). pp. 983-994. ISSN 0268-3768

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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-Al(2)O(3)) 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.

Item Type:	Article
Uncontrolled Keywords:	Nd:YAG laser micro-drilling; Titanium nitride-alumina composite; Circularity; Response surface methodology (RSM)
Subjects:	Processing Science
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	01 Feb 2012 12:24
Last Modified:	26 May 2016 05:07
URI:	http://cgcri.csircentral.net/id/eprint/619

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