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Design for Additive Manufacturing

  • Chapter
Additive Manufacturing Technologies

Abstract

Design for manufacture and assembly (DFM) has typically meant that designers should tailor their designs to eliminate manufacturing difficulties and minimize manufacturing, assembly, and logistics costs. However, the capabilities of additive manufacturing technologies provide an opportunity to rethink DFM to take advantage of the unique capabilities of these technologies. As we will cover in Chap. 14, several companies are now using AM technologies for production manufacturing. For example, Siemens, Phonak, Widex, and the other hearing aid manufacturers use selective laser sintering and stereolithography machines to produce hearing aid shells, Align Technology uses stereolithography to fabricate molds for producing clear dental braces (“aligners”), and Boeing and its suppliers use selective laser sintering to produce ducts and similar parts for F-18 fighter jets. For hearing aids and dental aligners, AM machines enable manufacturing of tens to hundreds of thousands of parts; where each part is uniquely customized based upon person-specific geometric data. In the case of aircraft components, AM technology enables low volume manufacturing, easy integration of design changes and, at least as importantly, piece part reductions to greatly simplify product assembly.

The unique capabilities of AM technologies enable new opportunities for customization, very significant improvements in product performance, multifunctionality, and lower overall manufacturing costs. These unique capabilities include: shape complexity, in that it is possible to build virtually any shape; hierarchical complexity, in that hierarchical multiscale structures can be designed and fabricated from the microstructure through geometric mesostructure (sizes in the millimeter range) to the part-scale macrostructure; material complexity, in that material can be processed one point, or one layer, at a time; and functional complexity, in that fully functional assemblies and mechanisms can be fabricated directly using AM processes. These capabilities will be expanded upon in Sect. 11.4.

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Notes

  1. 1.

    Design for manufacturing is typically abbreviated DFM, whereas design for manufacture and assembly is typically abbreviated as DFMA. To avoid confusion with the abbreviation for design for additive manufacturing (DFAM) we have utilized the shorter abbreviation DFM to encompass both design for manufacture and design for assembly.

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Authors and Affiliations

  1. Department of Mechanical & Production Engineering, National University of Singapore, 9 Engineering Drive 1, 117576, Singapore, Singapore

    Dr. Ian Gibson

  2. The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 813 Ferst Drive, N.W., 30332-0405, Atlanta, GA, USA

    Dr. David W. Rosen

  3. Department of Mechanical & Aerospace Engineering, Utah State University, 4130 Old Main Hall, UT 84322, Logan, UT, USA

    Dr. Brent Stucker

Authors
  1. Dr. Ian Gibson
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  2. Dr. David W. Rosen
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  3. Dr. Brent Stucker
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Gibson, I., Rosen, D., Stucker, B. (2010). Design for Additive Manufacturing. In: Additive Manufacturing Technologies. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-1120-9_11

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  • DOI: https://doi.org/10.1007/978-1-4419-1120-9_11

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4419-1119-3

  • Online ISBN: 978-1-4419-1120-9

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