We describe a method for the manufacturing of metallic lattices with tunable properties through the reversible assembly of building block elements, which we call discrete metal lattice assembly (DMLA). These structures can have sub-millimeter scale features on millimeter scale parts used to assemble structures spanning tens of centimeters, comparable to those currently made with Direct Metal Laser Sintering (DMLS). However, unlike traditional additive manufacturing (AM) methods, the use of discrete assembly affords a number of benefits, such as extensible, incremental construction and being repairable and reconfigurable. We show this method results in large scale (tens of centimeters), ultralight (<10 kg/m3 effective density) lattices which are currently not possible with state of the art additive manufacturing techniques. The lattice geometry used here is a combination of two geometries with quadratic property scaling, resulting in a novel lattice with sub-quadratic scaling.
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ASME 2018 13th International Manufacturing Science and Engineering Conference
June 18–22, 2018
College Station, Texas, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-5138-8
PROCEEDINGS PAPER
Building Block-Based Assembly of Scalable Metallic Lattices
Benjamin Jenett,
Benjamin Jenett
Center for Bits and Atoms, MIT, Cambridge, MA
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Neil Gershenfeld,
Neil Gershenfeld
Center for Bits and Atoms, MIT, Cambridge, MA
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Paul Guerrier
Paul Guerrier
Moog Inc., East Aurora, NY
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Benjamin Jenett
Center for Bits and Atoms, MIT, Cambridge, MA
Neil Gershenfeld
Center for Bits and Atoms, MIT, Cambridge, MA
Paul Guerrier
Moog Inc., East Aurora, NY
Paper No:
MSEC2018-6442, V004T03A053; 6 pages
Published Online:
September 24, 2018
Citation
Jenett, B, Gershenfeld, N, & Guerrier, P. "Building Block-Based Assembly of Scalable Metallic Lattices." Proceedings of the ASME 2018 13th International Manufacturing Science and Engineering Conference. Volume 4: Processes. College Station, Texas, USA. June 18–22, 2018. V004T03A053. ASME. https://doi.org/10.1115/MSEC2018-6442
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