New Measurement Processes to Define the Quality of Machined Fibre Reinforced Polymers

This paper deals with two possibilities, which enable the investigation of the machining quality of parts made of fibre reinforced polymers. Finishing operations like milling or drilling are necessary in actual production processes. Such operations mostly cause damages like fraying, delamination or splintering at the machining surface. The one dimensional maximum method and the three dimensional damage analysis are two tools, which allow a reliable comparison between different experiments with, for example, varied process parameters. Therefore the one dimensional maximum method (1D-MM) only needs a calliper or microscope with measuring feature and can be accomplished in nearly every environment. The three dimensional damage analysis (3D-DA) requires high end measuring equipment but provides more information. Both procedures distinguish the occurring damages in fraying, delamination and splintering, what enables the optimized enhancement of the process. Such measurement methods are the necessary basis for every development or investigation in this field and should be understood as an approach for standardization.