Saving weight with metallic lattice structures: Design challenges with a real-world example

S. N.R. Kantareddy, B. M. Roh, T. W. Simpson, S. Joshi, C. Dickman, E. A. Lehtihet

Research output: Contribution to conferencePaperpeer-review

4 Scopus citations

Abstract

Lattice structures are structurally efficient yet complex designs that enable high stiffness and reduce weight. While lattice structures are traditionally difficult to manufacture in metal with conventional fabrication processes, AM is a viable solution to manufacture such complex geometries to achieve lightweight designs. However, there is relatively little information available in the literature about designing large-scale lattice structures, particularly concerning computer-aided design tools, structural analysis, and post-processing for functional metallic components. In this study, we investigate and discuss these aspects in the context of a real-world problem for an oil and gas application. The lattice structure is designed and fabricated with IN 718 powder using an EOS M280 laser-based powder bed fusion system. A weight reduction of 42.4% is achieved while obtaining the desired mechanical performance. Results and challenges, particularly with the design workflow, are discussed along with future research directions.

Original languageEnglish (US)
Pages2139-2154
Number of pages16
StatePublished - 2016
Event27th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2016 - Austin, United States
Duration: Aug 8 2016Aug 10 2016

Conference

Conference27th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2016
CountryUnited States
CityAustin
Period8/8/168/10/16

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Fingerprint Dive into the research topics of 'Saving weight with metallic lattice structures: Design challenges with a real-world example'. Together they form a unique fingerprint.

Cite this