Thesis in the field of Additive Manufacturing - Focus on Sustainability

Liebherr-Aerospace Lindenberg GmbH is one of the leading European manufacturers of aircraft equipment. The products are used on board many large-scale aircraft, business jets and helicopters. In addition to chassis, flight control and actuating systems, the program also includes gears.

Final work in the field of additive manufacturing - Focus on sustainability Job ID 80624

Topic of work: Conception and implementation of a framework for sustainability assessment of the PBF-LB/M process chain at Liebherr-Aerospace Lindenberg GmbH The aim of this thesis is to develop a scientifically sound evaluation framework for the quantitative sustainability analysis of the process chain of the powder-bed-based laser beam melting of metals (PBF-LB/M) at Liebherr-Aerospace Lindenberg GmbH. The work combines established methods of ecological accounting (Life Cycle Assessment, LCA) with real operating and consumption data to enable a resilient assessment of the climate and resource-related effects of the process chain. In addition to determining the status quo, the framework is designed to systematically evaluate potential optimizations in the process chain with regard to their climate impact (in particular CO2 emissions) and to identify corresponding potential for improvement. The following objectives are provided under the work: Systematic analysis of the current state of research and development for the sustainability assessment of additive manufacturing processes, focusing on PBF-LB/M technologies. Identification, selection and critical assessment of relevant LCA methods, standards and industry-wide established sustainability standards. Data collection and processing of real process and consumption data along the PBF-LB/M process chain at Liebherr-Aerospace. Conception of a modular evaluation framework for quantifying climate impacts (in particular in kg CO2 equivalents), taking into account material, energy and process parameters. Application of the framework for evaluating the current actual state as well as simulated process variants with optimized parameters or process routes. Critical reflection of the results regarding their expressiveness, industrial scalability and potential contributions to the decarbonization of additive manufacturing. Expected knowledge gain: The work aims to provide sustainable process optimizations in additive manufacturing through a holistic view of the process chain. The developed framework is intended to serve as a practical tool to make ecological impacts both qualitatively and quantitatively transparent and to support the implementation of effective emission reduction strategies in industrial practice. The work enables practical sustainability assessments

enrolled students from the courses Sustainability Management, Mechanical Engineering, Aerospace Technology, Industrial Engineering or Similar Safe handling of MS Office Knowledge of LCA of advantage

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