Browsing by Subject "process chain"

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    Fatigue Behavior of Additive Manufactured Parts in Different Process Chains - An Experimental Study
    (University of Texas at Austin, 2017) Uhlmann, Eckart; Gerlitzky, Georg; Fleck, Claudia
    Metal based Additive Manufacturing (AM) has experienced dynamic growth in recent years. However, the global distribution of Additive Manufacturing is limited by the fact the produced parts suffer from bad surface quality and the material properties concerning fatigue life are still an object of current investigations which limits possible applications of AM parts. Due to this fact metal AM processes are often followed by a post process to ensure a better surface quality. In this paper the authors present results where fatigue life and different post processes of additive manufactured parts are investigated. Subsequently, surface roughness, high cycle fatigue, fracture behavior and microstructure have been characterized. Finally the results for the different post processing states have been compared and surface properties as well as microstructure have been correlated with the fatigue properties in order to evaluate how different process chains influence the High cycle fatigue (HCF) behavior of additive manufactured parts.
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    Technology Integration into Existing Companies
    (University of Texas at Austin, 2018) Rohde, J.; Lindemann, C.F.; Jahnke, U.; Kruse, A.; Koch, R.
    The implementation of additive manufacturing as an industrial manufacturing process poses extraordinary challenges to companies due to their far-reaching differences to conventional processes. In addition to the major differences in the production process, the pre and post process steps in particular also require a rethinking for companies and their employees. To overcome these challenges and specifically to assist SMEs in the integration of technologies five industrial companies are researching together within research project "OptiAMix", funded by the German Federal Ministry of Education and Research (BMBF) and coordinated by the Paderborn University. This paper focuses on the development of an optimal and standardized process chain and its implementation in a general integration methodology. This enables the standardized integration of additive manufacturing in order to create a uniform understanding of the procedures and tasks within the company for the industrial application of additive manufacturing at an early stage as well as the full exploitation of its high potentials. Therefore, the methodology also includes other technology-specific components such as strategic component selection, decision support for "make or buy" and the implementation of automated component marking.