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Laser Machining of Polymer Matrix Composites: Scope, Limitation and Application

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Author(s): Pathik Patel#1 , Piyush Gohil#1 , Shilpesh Rajpurohit

Journal: International Journal of Engineering Trends and Technology
ISSN 2231-5381

Volume: 4;
Issue: 6;
Start page: 2391;
Date: 2013;
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Keywords: laser cutting | CO2 laser | polymer matrix composites | kerfwidth

ABSTRACT
This paper presents an overview of laser beam machining and researches carried out so far in the area of laser cutting of polymer matrix composites. Composite materials are highly promising materials for applications in the aeronautic, aerospace, automotive and marine industry, but their properties like brittleness, anisotropy and non-homogeneity make it a difficult to machine material by conventional machining methods. In order to make parts of the required specifications from composites an appropriate machining method must be selected and laser machining offers an attractive alternative for machining the composites. Laser machining is thermal energy based non-contact type advance machining. Laser beam is focused on the material to remove material by melting and vaporizing. Laser cutting of composites find wide application in industry due to improved end product quality, low cost and short processing time. In recent years number of researches have explored laser beam machining of polymer matrix composites and the problem associated with that. This paper gives an overview of laser beam machining of polymer matrix composites, the effect of laser cutting parameters (laser power, cutting speed, gas pressure etc.) on the cut quality parameters (heat affected zone, surface roughness, kerfwidth, taper angle etc.) and at last the problems associated with cutting of composites are discussed as future work.

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