(Re)Design for Additive Manufacturing
2016 (English)In: 26th CIRP Design Conference, Amsterdam: Elsevier, 2016, 246-251 p.Conference paper (Refereed)
3D-printing has been used to create prototypes during the development phase for more than 20 years. Now, functional parts can be printed directly in specific metal powders using similar layer-by-layer techniques. The additive method is unlike traditional mass production manufacturing methods in many ways, creating new possibilities for designers to realise new and different design ideas previously impossible to manufacture. When products are mass produced, there is a desire to improve manufacturability. This is traditionally done by a designer with knowledge about certain manufacturing methods altering design choices to make it cheaper to manufacture.
This paper shows different design for AM (DfAM) methods where performance and part cost are both of interest. It adds to existing research by classifying design for additive manufacturing in two different classes; process-driven and designer-driven shaping of parts. A cost-prediction model for Selective Laser Melting (SLM) printed parts is suggested as an initial step to choose parts for redesign from an economical perspective. A case study of a missile launcher beam redesigned for additive manufacturing using three different approaches is presented. Differences and similarities in design methods are discussed and the redesigned parts are compared for mass and cost. It is shown that redesigning for AM can reduce mass but depending on part size and print speed, the part can become more expensive than the original design, creating a need to know the customer value of what the redesigned part provides, in this case, the value of reduced mass.
Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2016. 246-251 p.
Procedia CIRP, ISSN 2212-8271 ; 50
Additive manufacturing, Powder Bed Fusion, design, topology optimisation, lattices, DfAM
IdentifiersURN: urn:nbn:se:oru:diva-53930DOI: 10.1016/j.procir.2016.04.150ISI: 000387666600041ScopusID: 2-s2.0-84986631521OAI: oai:DiVA.org:oru-53930DiVA: diva2:1055834
26th CIRP Design Conference, KTH Royal Institute of Technology, Stockholm, Sweden, June 15-17, 2016