Laser Machining of Structural Ceramics: An Integrated Experimental and Numerical Approach for Surface Finish

One of 2 posters in the series: UNT Graduate Exhibition available on this site.

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Description

Poster awarded first place in the 2013 UNT Graduate Exhibition in the Engineering category. This poster discusses laser machining of structural ceramics and an integrated experimental and numerical approach for surface finish.

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1 p.

Creation Information

Vora, Hitesh D. & Dahotre, Narendra B. March 2, 2013.

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This poster is part of the collection entitled: UNT Scholarly Works and was provided by UNT College of Engineering to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 330 times , with 6 in the last month . More information about this poster can be viewed below.

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UNT College of Engineering

The UNT College of Engineering promotes intellectual and scholarly pursuits in the areas of computer science and engineering, preparing innovative leaders in a variety of disciplines. The UNT College of Engineering encourages faculty and students to pursue interdisciplinary research among numerous subjects of study including databases, numerical analysis, game programming, and computer systems architecture.

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  • Main Title: Laser Machining of Structural Ceramics: An Integrated Experimental and Numerical Approach for Surface Finish
  • Series Title: UNT Graduate Exhibition

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Description

Poster awarded first place in the 2013 UNT Graduate Exhibition in the Engineering category. This poster discusses laser machining of structural ceramics and an integrated experimental and numerical approach for surface finish.

Physical Description

1 p.

Notes

Abstract: High energy lasers emerged as an innovative and potential industrial tool to fabricate complex shapes on structural ceramics which is otherwise difficult using conventional machining techniques. However, obtaining a desired surface finish at higher material removal rate during laser machining of structural ceramics is still a critical issue. In this situation, the better understanding of various physical phenomena such as heat transfer, fluid flow, recoil pressure, Marangoni convection, and surface tension and its influence on the evolution of typical surface topography during laser machining could be more helpful. In light of this, this study was attempted to present the state of the art of laser machining of alumina using an integrated experimental and computational approach. A multistep computational model based on COMSOL™ Multiphysics was developed to study the effect of various physical phenomena on the generation of surface topography for various laser machining conditions. Furthermore, this process model can be used as a handy tool for the process engineers to configure the process variables (laser power, scanning speed, pulse rate, size of overlap) to obtain the specified quality characteristics. The surface topography of laser machined alumina was measured by an optical profilometer and the results were compared with the computationally predicted topographic parameters with reasonably close agreement.

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  • UNT Graduate Exhibition, 2013, Denton, Texas, United States

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UNT Scholarly Works

Materials from the UNT community's research, creative, and scholarly activities and UNT's Open Access Repository. Access to some items in this collection may be restricted.

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Creation Date

  • March 2, 2013

Added to The UNT Digital Library

  • March 22, 2013, 6:09 p.m.

Description Last Updated

  • March 10, 2014, 1:12 p.m.

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Vora, Hitesh D. & Dahotre, Narendra B. Laser Machining of Structural Ceramics: An Integrated Experimental and Numerical Approach for Surface Finish, poster, March 2, 2013; (digital.library.unt.edu/ark:/67531/metadc152429/: accessed April 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Engineering.