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A design, mechanical rating, and load adaptation method for cellular components for additive manufacturing

: Ziegler, T.; Jaeger, R.; Koplin, C.

Postprint urn:nbn:de:0011-n-4228606 (585 KByte PDF)
MD5 Fingerprint: 34b61d1148515e8354d8e5ef51839b8d
The original publication is available at
Erstellt am: 24.10.2017

The International Journal of Advanced Manufacturing Technology 90 (2017), Nr.9, S.2875-2884
ISSN: 0268-3768
ISSN: 1433-3015
Bundesministerium für Bildung und Forschung BMBF
BIONA; 01RB0906A
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer IWM ()

We present a tool for Design for Additive Manufacturing by internally structuring bulk volumes for lightweight construction. Essential to cost efficient, rapid prototyping is a reliable assessment of mechanical properties without having to build spare samples for testing. Due to its regular nature, our structure allows a beforehand calculation of the mechanical properties like strength and stiffness, even for large geometries with many cells. To improve the mechanical performance of the entire component, the structure of the cells can be adapted in response to a pre-determined load. This adaptation is achieved by locally increasing the diameter of selected struts. Moreover, the mechanical performance of the optimized structure can also be predicted by Finite Element Modeling. The adaptation significantly enhances the load bearing capacity of the product with a low increase in material and production time.