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Ki, Hyungson
Laser Processing & Multiphysics Systems Laboratory
Research Interests
  • Laser materials processing
  • Laser material interaction

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Multiple reflection and its influence on keyhole evolution

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Title
Multiple reflection and its influence on keyhole evolution
Author
Ki, HyungsonMohanty, P.S.Mazumder, J.
Keywords
Effective laser absorptivity;  Laser drilling;  Laser welding;  Multiple reflection
Issue Date
2002-02
Publisher
AMER INST PHYSICS
Citation
JOURNAL OF LASER APPLICATIONS, v.14, no.1, pp.39 - 45
Abstract
A multiple reflection model inside a self-evolving cavity was developed based on the level set method. The ray tracing technique was adopted, considering the specular mode of reflection. Simulation was carried out for five different surfaces: two fake drill hole surfaces, one fake keyhole surface, one self-consistent drill hole surface, and one self-consistent keyhole surface. The study revealed many interesting findings regarding multiple reflections.
URI
https://scholarworks.unist.ac.kr/handle/201301/6586
DOI
10.2351/1.1449885
ISSN
1042-346X
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