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Characterization of hole circularity in pulsed Nd:YAG laser micro-drilling of TiN-Al(2)O(3) composites

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Characterization of hole circularity in pulsed Nd:YAG laser micro-drilling of TiN-Al(2)O(3) composites
 
Creator Biswas, R
Kuar, A S
Biswas, S K
Mitra, S
 
Subject Processing Science
 
Description 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.
 
Publisher SPRINGER LONDON LTD
 
Date 2010-12
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cgcri.csircentral.net/619/1/13-2010.pdf
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
 
Relation http://cgcri.csircentral.net/619/