Visual defects of painted surfaces on ABS/PC injected parts

Abstract : A high surface quality is necessary for automotive industry especially for exterior parts. Most outdoors polymers are painted for aesthetic reasons as metallic parts. The quality aspect must be indistinctive of the nature of the substrate, metal or polymer, to produce a global high quality aspect of the vehicle. Whatever the material, metal or polymer, sometimes defects appear in small locations which lead to the rejection of the automotive part. Here is presented a specific defect, aligned dots on the painted polymer part which are not present before painting process. The analytical method is almost universal but the defect is specific. It results from the conjugation of polymer nature and process and from the nature of painting.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-01444604
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MS_2008_CEMEF HAL.pdf
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  • HAL Id : hal-01444604, version 1

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Eponine Raynaud, Evelyne Darque-Ceretti, Bernard Monasse, Philippe Duquesne, Frédéric Georgi. Visual defects of painted surfaces on ABS/PC injected parts. MATERIALS & SENSATIONS 2008, Oct 2008, Pau, France. ⟨hal-01444604⟩

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