Author

Jingwei Zhang

Publication Date

1999

Document Type

Dissertation/Thesis

First Advisor

Kim, Meung J.

Degree Name

M.S. (Master of Science)

Department

Department of Mechanical Engineering

LCSH

Cutting||Finite element method||High power lasers||Pulsed power systems||Lasers in engineering

Abstract

A two-dimensional transient model for pulsed high-power laser cutting process is developed. The nondimensional forms of governing equation and the boundary conditions are derived, and the numerical solutions are obtained by a finite element method. Results obtained by this finite element model are compared with other data. The parameters of the pulsed laser cutting process are identified for the performance of the cutting process. The performance of the cutting process is further studied to determine the groove size and shape resulting from the pulsed laser beam. The results obtained by this finite element model are compared with those from continuous laser cutting process. The effects of the laser power and the duration of the pulsed laser beam are also discussed.

Comments

Includes bibliographical references (pages [63]-64).

Extent

ix, 64 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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