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Inline Quality Assurance in Lightweight Fiber Composite Construction

A great many areas of business are interested in cutting energy consumption by reducing weight. Lightweight construction is one solution to this problem. Compared with conventional metal engineering, lightweight construction with textile fiber composite materials opens up new potential for energy efficiency.

Quality assur­ance for this high-performance material has to date been performed primarily using manual techniques, which raises reliability and affordability issues in trying to match the market requirements. The objective for quality assurance in the production of FRP is the securing of the entire process chain. This can be per­formed through automated inspection and the integra­tion of control procedures. The Machine Tool Lab (WZL) at the RWTH Aachen thus developed the Fiber Measurement System (FMS), a robot-based sensor system to detect and classify production errors in semi-finished textile products involved in FRP production.

The Machine Tool Lab (WZL) at the RWTH Aachen developed procedures based on a fusion of sensor data from active and passive optical measurement processes. While special laser-based measurement techniques are used for recording 3D geometry (macroform), the high-resolution area scan camera, Basler pilotpiA2400-17gm, is used for the detection of fiber orientation (microform) in the FRP structures.