Ceramic injection molding is a shaping technology suited for manufacturing complex shaped advanced ceramic parts in mass production. Simulating the mold filling process helps to identify critical sites which have to be considered in tool design. Introducing tracer particles into injection molding feedstocks enables the visualization of flow lines in green samples by X-ray computed tomography. The CT images of marked samples are used to validate mold filling simulations
3D printed parts and components operate under specific conditions in demanding applications thus requiring additional surface functionality. From the tribological point of view, as-printed surfaces need to enhance their wear resistance or be able to control friction when sliding against other components. The overall focus is to develop a smart approach for functional component optimization through tribo-technical / technological optimization. In this work, the development of a hybrid 3D-printing process was realized by: (i) a combination of production technologies (hybridization), and (ii) customized surfaces by laser processing (functionalization). The focus is set on the increase in the wear resistance by the presence of hard and wear resistant particles embedded in a metallic matrix. For controlled friction behavior self-lubricating layers were deposited on the surfaces.
The paper provides a selection of manifold results and findings gained within a national research and leader project, called "addmanu" , which has motivated a lot of other researchers and companies to go into this interesting field of metallic additive manufacturing. New material developments, lightweight AM-concepts, hybrids, components having a very complex geometry, production of very small channels, reduction of surface roughness, and the production of a series of parts in high-tech application areas are demonstrated.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.