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Product Code: ICA13_M1001

Comparison Between Laser Technologies and Alternative Processes on Paint and Polymer Layer Removal on Composite Substrate
Charly Loumena, Alphanov; Talence France
Anthony Kirsch, Alphanov; Talence France
Rainer Kling, Alphanov; Talence Cedex France
Presented at ICALEO 2013

The application of composites and in particular CFRP (Carbon Fiber Reinforced Polymer) is a booming market. This material tends to gradually replace metals and alloys in many fields such as automotive, renewable energies, and aerospace. Indeed, composite materials combine high mechanical performances, low weight and good corrosion resistance. However this highly technical material requires innovative processes in its manufacture, its machining and its maintenance. Laser processes such as cutting, drilling, surface activation and cleaning compete with conventional and alternative processes. In this paper, we report on paint and polymer layer removal on CFRP substrate with a wide selection of laser sources. In addition we make a comparison with alternative processes such as high pressure waterjet, cryogenic pellet and sodium bicarbonate.
Results of this comparative study are evaluated in terms of damage characterization of the carbon fiber or epoxy resin.

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