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Industry 4.0 Repairs of Automotive CFRP Parts by Individual Repair Patch

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Industry 4.0 Repairs of Automotive CFRP Parts by Individual Repair Patch Production with Geometrically Adaptive Manufacturing Molds


Throughout the last decade, CFRP have increasing appeal for applications in high volume markets, such as the automotive industry. Due to the cost sensitivity of automobile products new repair strategies for these CFRP parts are required. These strategies need to enable a safe, fast and economic repair, optimized material utilization and low amounts of waste. At the same time versatile geometries and functional integration of the CFRP parts in vehicles have to be taken into account. At the Institute of Plastics Processing (IKV) at RWTH Aachen University a highly integrated and multiple-sensor aided repair strategy for CFRP vehicles has been developed together with six partner institutes. The strategy consists of three steps: Damage detection, evaluation and repair patch based reconstruction of the vehicles in existing workshops. The supply of prefabricated repair patches maybe outsourced to a centralized service partner. All steps of the repair are connected through an industry 4.0 data management system.Due to the different geometries of damaged CFRP parts an adaptive mold for the production of individual repair patches is used. This paper explores the capabilities of adaptive mold concepts, which enable the manufacture of thermoset and thermoplastic repair patches. The developed mold technology is introduced and the specific requirements and solutions are discussed. Additionally, the results of initial manufacturing trials are investigated.


Author: Philipp Wagner


Conference: SAMPE Seattle 2017


SKU/Code: SE17--0611

Pages: 14

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