A CAD-Based Workflow and Mechanical Characterization for Additive Manufacturing of Tailored Lattice Structures

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dc.creatorKoch, P.
dc.creatorKorn, H.
dc.creatorKordass, R.
dc.creatorHoltzhausen, S.
dc.creatorSchoene, C.
dc.creatorMueller, B.
dc.creatorStelzer, R.
dc.date.accessioned2021-11-09T20:22:10Z
dc.date.available2021-11-09T20:22:10Z
dc.date.issued2018
dc.description.abstractLattice structures are highly recommended for lightweight applications and cost reduction in additive manufacturing (AM). Currently, parts with lattice structures are still mainly used for illustrative purposes and rarely in industrial products. One important reason is that, due to their high dependency on macro- and micro-geometry, the mechanical properties of manufactured structures are difficult to predict. Thus, even and precise struts are needed. In this paper, a workflow for fabrication of lattice structures with strut-diameters from 150 µm to 400 µm on commercial laser beam melting (LBM) systems is presented. Based on a CAD-integrated user-interface for lattice design, a customized slicing algorithm determines database-aided suitable exposure parameters which ensure that the properties of the manufactured struts will just be as specified upon design. Subsequently, compression tests are performed in order to verify the established workflow. The developed tool enables designers to integrate AM-specific geometries into their components with little specific experience in AM.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/90156
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/17077
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2018 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectCAD-based workflowen_US
dc.subjectCADen_US
dc.subjectmechanical characterizationen_US
dc.subjectlattice structuresen_US
dc.subjectlaser beam meltingen_US
dc.subjectadditive manufacturingen_US
dc.titleA CAD-Based Workflow and Mechanical Characterization for Additive Manufacturing of Tailored Lattice Structuresen_US
dc.typeConference paperen_US

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2018 International Solid Freeform Fabrication Symposium