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[ 1 ] Helming, S.; Haverkamp, C.; Haefner, B. & Lanza, G. (2019), „Development of a Structured Approach for Reactive Disruption Management in Supply Chain Networks “. Proceedings of the International Conference on Competitive Manufacturing - Knowledge Valorisation in the Age of Digitalization, Hrsg. Dimitrov, D.; Hagedorn-Hansen, D. & von Leipzig, K., S. 431-437.
Abstract:
Increasing complexity and dynamics in globally distributed supply chain networks makes companies vulnerable to disruptions and does not only require good and robust planning, but also rapid troubleshooting as a reaction to unforeseen events. However, companies often neither possess a targeted approach for the systematic identification and communication of disruptions nor for the appropriate reaction to a disruption and the minimization of its consequences while considering the entire supply chain. Hence, this paper proposes a framework for reactive disruption management which allows for a multi-criteria evaluation and logical selection of measures in case of a disruption.

[ 2 ] Treber, S.; Moser, E.; Helming, S.; Haefner, B. & Lanza, G. (2019), „Practice-oriented Methodology for Rreallocating Production Technologies to Production Locations in Global Production Networks“, Production Engineering, S. 1-9.
Abstract:
An increasingly uncertain and dynamic competitive environment is challenging industrial companies nowadays. Against this backdrop, companies are focusing on their core competences. They organize their production in global production networks. While the competitiveness of production networks could be maintained for a long time by optimizing individual production sites, the overall network is increasingly becoming the focus of attention. In particular, the elimination of redundant production technologies offers the potential to exploit economies of scale, to bundle technology-specific competences and to achieve an increase in efficiency. The purely mathematical optimization models disseminated in research are unable to consider all the sub tasks of planning. For this reason, this article proposes a practice oriented methodology for reallocating production technologies to production locations in global production networks. The procedure consists of three phases: the investigation of current production technology-to-site allocation in the production network, the generation and planning of alternative reallocations as well as the evaluation of reallocations. For testing its practical suitability, the procedure is exemplary applied to the global production network for forging processes of a medical device manufacturer.

[ 3 ] Treber, S.; Moser, E.; Helming, S.; Haefner, B. & Lanza, G. (2019), „Practice-oriented Methodology for Rreallocating Production Technologies to Production Locations in Global Production Networks“, Production Engineering, S. 1-9.
Abstract:
An increasingly uncertain and dynamic competitive environment is challenging industrial companies nowadays. Against this backdrop, companies are focusing on their core competences. They organize their production in global production networks. While the competitiveness of production networks could be maintained for a long time by optimizing individual production sites, the overall network is increasingly becoming the focus of attention. In particular, the elimination of redundant production technologies offers the potential to exploit economies of scale, to bundle technology-specific competences and to achieve an increase in efficiency. The purely mathematical optimization models disseminated in research are unable to consider all the sub tasks of planning. For this reason, this article proposes a practice oriented methodology for reallocating production technologies to production locations in global production networks. The procedure consists of three phases: the investigation of current production technology-to-site allocation in the production network, the generation and planning of alternative reallocations as well as the evaluation of reallocations. For testing its practical suitability, the procedure is exemplary applied to the global production network for forging processes of a medical device manufacturer.

[ 4 ] Weinmann, H.; Lang, F.; Hofmann, J. & Fleischer, J. (2018), „Bahnzugkraftregelung in der Batteriezellfertigung“, wt Werkstattstechnik online, S. 519-524.
Abstract:
Viele Maschinen- und Materialparameter sind für die Qualität eines Elektroden-Einzelblattes verantwortlich. Relevant für Vereinzelung und Stapelbildung ist etwa die Bahnzugkraft, mit der die Elektrodenbahn während des Stanzvorgangs beaufschlagt wird. Diese wurde in der Versuchsanlage des wbk Institut für Produktionstechnik regelbar ausgeführt, um Zusammenhänge bei der Einzelblattstapelbildung zu untersuchen. Dieser Artikel stellt Auswahl und Funktion sowie die Integration der Lösung in die Versuchsanlage und die Auswirkung verschiedener Bahnzugkräfte auf die Maßhaltigkeit der gestanzten Einzelblätter vor.

[ 5 ] Weinmann, H. & Fleischer, J. (2018), „Highly integrated machine module for single sheet stacking“. Tagungsband zur International Battery Production Conference (IBPC), Hrsg. Prof. Arno Kwade, ., S. 58.
Abstract:
The number of electrified vehicles and portable electronic devices announced by manufacturers is rising continuously. This inevitably leads to an increase in demand for battery cells, whereby the pouch cell is particularly well suited for some applications since it offers for example the advantage of higher format flexibility, due to the cell assembly from individual sheets, and the possibility to process thick-film electrodes. The breakthrough of the pouch cell format is currently counteracted by the comparatively high production costs which are largely attributable to the time consuming process steps of separation and assembly. The general challenges in the production for pouch cells lie in the fast and damage-free separation and positioning of the individual sheets (anode, cathode, separator) relative to each other. Thick-film electrodes and increasingly thin separators place additional demands on the production process. Thick-film and heavily calendered electrodes for example exhibit higher rigidity, resulting in new challenges for material guidance, handling and separation. According to the state of the art, electrodes and separators are often cut using lasers. This procedure favors the formation of particles which are difficult to remove from clean and dry rooms. After assembly, the individual sheets are oftentimes temporarily stored in magazines, whereby tolerances in the magazines lead to degrees of freedom and finally to a loss of the previously defined orientation and position. The contact between the magazine guide and the single sheet can also cause damage to the material, especially on the edges, just like those additional process steps for realignment and positioning of the single sheets on the cell stack. The aim of the presentation is to present a systematic derivation of a new and efficient process for forming single sheet stacks considering process related requirements. In particular, feeding and alignment of the material web as well as the separation and positioning of the individual sheets on the cell stack will be addressed. The new process is to be implemented in a highly integrated machine module that incorporates the functions of separating, conveying and depositing for electrodes or separators and thus enables a significantly reduced number of process steps. Furthermore, magazines and subsequent alignment of the electrode or separator sheets prior to cell stacking can be dispensed with. The new module should also be explicitly suitable for processing thick-film electrodes and allow a variation of the individual sheet size in one dimension. The higher format flexibility and efficiency achieved by the new process should help to further strengthen the application fields of pouch cells and at the same time reduce production costs.

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