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http://dx.doi.org/10.7736/KSPE.2012.29.5.572

A Fundamental Study on UV Laser Micro Machining of Micro Porous Polymeric Foams  

Oh, Jae-Yong (ERC/NSDM, Department of Mechanical Engineering, Pusan Natl. Univ.)
Shin, Bo-Sung (ERC/NSDM, Department of Mechanical Engineering, Pusan Natl. Univ.)
Lee, Jung-Han (Department of Mechanical Engineering, Pusan Natl. Univ.)
Park, Sang-Hu (Department of Mechanical Engineering, Pusan Natl. Univ.)
Park, Chul-Beom (Department of Mechanical and Industrial Engineering, Univ. of Toronto)
Publication Information
Journal of the Korean Society for Precision Engineering / v.29, no.5, 2012 , pp. 572-577 More about this Journal
Abstract
Recently porous polymer has widely been applied to packaging, heat isolation, and sound absorption in various fields from the electrics to the automobiles industry. A lot of micro porosities inside foamed polymer provide lower heat conduction and lighter weight than non-porous polymer, because they involve gas or air during foaming process. In this paper experimental approaches of the UV laser micro machining behavior for Expanded Polypropylene (EPP) foamed polymer materials, which have different expansion rates, were investigated. From these results, the ablation phenomena were finally observed that the ablation is depended upon stronger photo-chemical than photo-thermal effect. This study will also help us to understand interaction between UV laser beam and porous polymer.
Keywords
UV Laser; Micro Porosity; Polymer Foam; Micro Machining; Ablation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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