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[ 1 ] Schäfer, M.; Moll, P. & Fleischer, J. (2018), „Modular production plants for hybrid lightweight components“. 22nd Dresden International Lightweight Engineering Symposium, Hrsg. Institut für Leichtbau und Kunststofftechnik, T. U. D., S. 141-145.
Abstract:
In recent years there has been an increasing trend towards shorter product life cycles and an increasing number of variants due to individual customer requirements, which has led to smaller batches in production. In order to meet these market requirements, production plants must be adaptable to changing demands by fast reconfiguration. In the presented approach, a service-oriented-architecture for a modular production plant with methods of web-based configuration of the line control system was investigated.

[ 2 ] Barton, D.; Gönnheimer, P.; Qu, C. & Fleischer, J. (2018), „Self-describing connected components for live information access within production systems“. 4th International Conference on System-Integrated Intelligence: Intelligent, Flexible and Connected Systems in Products and Production, Hrsg. Denkena, B.; Thoben, K. & Trächtler, A., S. 250-257.
Abstract:
Access to data from components in production systems is potentially an enabler for various data-based approaches. This paper presents a practical approach to transform mechanical components into self-describing cyber-physical systems connected within a local network. The requirements for typical use cases are analysed and a modular cyber-physical connector is proposed. The data is collected by a central OPC UA client and fed into a web-based visualisation, so that it is easily accessible for operators, maintenance staff, and other stakeholders. The approach is illustrated for components with two different levels of complexity.

[ 3 ] Kupzik, D.; Ballier, F.; Lang, J.; Coutandin, S. & Fleischer, J. (2018), „Development and evaluation of concepts for the removal of backing foils from prepreg for the automated production of UD reinforced SMC parts“. Proceedings of the 18th European Conference on Composite Materials (ECCM18), Hrsg. European Society for Composite Materials (ESCM), S. 1-8.
Abstract:
Backing foil or paper needs to be removed from the raw material prior to the processing of Sheet-Moulding-Compound (SMC) or unidirectionally reinforced prepreg (UD-Tapes). In present automated production processes, this step is conducted after unrolling the raw material and prior to the cutting. In a process chain, which is conducted in the authors project, the backing foil needs to remain at the material after the cutting step. For these process chains, a method needs to be found to remove the backing foil from the material. In the state of the art, methods are shown to remove backing paper from prepreg. In this paper new methods are developed and tested for the removal of backing foil together with existing concepts. The main difficulty is the transition from backing paper to backing foil which has a higher tack to the material, is thinner and mechanically less strong. Concepts which are investigated use compressed air, mechanical forces or the stiffness of the foil. The application of compressed air is tested between foil and prepreg. Mechanical forces can either be introduced using grippers, brushes, friction to rubber or adhesive tape. The stiffness of the foil is used when removing it through bending the prepreg.

[ 4 ] Kupzik, D.; Ballier, F.; Roller, T.; Coutandin, S. & Fleischer, J. (2018), „Development and evaluation of separation concepts for the controllable release of tacky prepreg from handling devices“. Procedia CIRP, Hrsg. Lihui Wang, S. 574-579.
Abstract:
The handling and layup of unidirectionally reinforced thermoset prepreg patches is currently a largely manual process. To reduce labor costs and increase part quality, automated handling of the material is desired. However, laying down the prepreg is challenging due to the tack of some materials. This paper investigates various modifications to an existing vacuum gripping system to enable a reliable separation process between the prepreg and the gripping system. The investigation focuses on the improvement of the integrated pneumatic blow-off mechanism, the development of a mechanical separation system and the application of different suction pads.

[ 5 ] Gerstenmeyer, M.; Zanger, F. & Schulze, V. (2018), „Influence of Complementary Machining on fatigue strength of AISI 4140“, CIRP Annals - Manufacturing Technology, S. 583-586.
Abstract:
Mechanical surface treatment is an additional process step in the process chain of part manufacturing to enhance performance but increasing production time and costs. Hence, different hybrid processes have been developed including Complementary Machining, which does not need a complex tool. Investigations of orthogonal Complementary Machining indicates that optimized cutting edge microgeometries can induce useful surface layer states like nanocrystalline surfaces whilst minimizing tool wear. This paper analyzes the resulting surface layer states (roughness, residual stresses, grain refinement) and their influence on fatigue strength after turning and Complementary Machining for AISI4140q&t. Implementing these analyses a deeper process understanding is accomplished.