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Hot Embossing by Matthias Worgull

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4.4. Quality of Molded Parts

What defines the quality of a replicated part? The criteria and their related measurement techniques named above characterize the geometry and the surface roughness as a result of the molding process. The results of these measurements are fundamental to analyzing the molded part regarding the flow behavior of the polymer melt, the isotropy of shrinkage, the warpage of thin parts, or the deformation because of internal stress. All these aspects result in a deviation from the ideal shape, here the inverse shape of the microstructured mold insert, and provide feedback on the molding process, the molding parameter, and the molding technology. The quality of a molded part therefore will include, besides the measurable ...

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