Economics of additive manufacturing for end-usable metal parts

Atzeni, Eleonora; Salmi, Alessandro

doi:10.1007/s00170-011-3878-1

Cited by 528 publications

(311 citation statements)

References 21 publications

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“…35), and hinges [29]. It can also produce "discontinuous interlinked structures" [79] (textiles) such as chain mail [44] and armor [162] (Fig.…”

Section: Direct Production Of Assembliesmentioning

confidence: 99%

“…At the same time, the freedoms of AM reduce the need for, and therefore the importance of, designing for activities such as assembly [149]. AM processes have different batch sizes, production times, and cost drivers than traditional processes [29][148] [275][276] [366] and require different approaches to metrology and quality control [224] [274]. Therefore a new body of knowledge is required to support DfAM.…”

Section: The Need For Design For Additive Manufacturingmentioning

confidence: 99%

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Design for Additive Manufacturing: Trends, opportunities, considerations, and constraints

et al. 2016

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The past few decades have seen substantial growth in Additive Manufacturing (AM) technologies. However, this growth has mainly been process-driven. The evolution of engineering design to take advantage of the possibilities afforded by AM and to manage the constraints associated with the technology has lagged behind. This paper presents the major opportunities, constraints, and economic considerations for Design for Additive Manufacturing. It explores issues related to design and redesign for direct and indirect AM production. It also highlights key industrial applications, outlines future challenges, and identifies promising directions for research and the exploitation of AM's full potential in industry.Design, Manufacturing, Additive Manufacturing

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“…35), and hinges [29]. It can also produce "discontinuous interlinked structures" [79] (textiles) such as chain mail [44] and armor [162] (Fig.…”

Section: Direct Production Of Assembliesmentioning

confidence: 99%

Section: The Need For Design For Additive Manufacturingmentioning

confidence: 99%

Design for Additive Manufacturing: Trends, opportunities, considerations, and constraints

et al. 2016

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“…However, simply using an existing design and manufacturing it using AM is not an effective approach. Instead, parts need to be redesigned to truly benefit from AM opportunities (Atzeni and Salmi 2012). To fully exploit the large design freedom of AM, particulary topology optimization (TO) is universally recognized as a key enabling design technology (Rosen 2014;Zhu et al 2015).…”

mentioning

confidence: 99%

An additive manufacturing filter for topology optimization of print-ready designs

Langelaar

2016

Struct Multidisc Optim

282

177

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Additive manufacturing (AM) offers exciting opportunities to manufacture parts of unprecedented complexity. Topology optimization is essential to fully exploit this capability. However, AM processes have specific limitations as well. When these are not considered during design optimization, modifications are generally needed in post-processing, which add costs and reduce the optimized performance. This paper presents a filter that incorporates the main characteristics of a generic AM process, and that can easily be included in conventional density-based topology optimization procedures. Use of this filter ensures that optimized designs comply with typical geometrical AM restrictions. Its performance is illustrated on compliance minimization problems, and a 2D Matlab implementation is provided.

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“…Additive manufacturing (AM) processes such as Selective Laser Melting (SLM) or Electron Beam Melting (EBM) allow economic fabrication of metal components with unprecedented geometric complexity [1]. This offers exciting opportunities for innovative designs, and particularly topology optimization (TO) has been identified as a key technique to fully exploit the capabilities of AM [2,3,4].…”

Section: Introductionmentioning

confidence: 99%

Topology Optimization for Additive Manufacturing With Controllable Support Structure Costs

Langelaar¹

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

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Abstract. Advances in additive manufacturing (AM) allow economical production of components with unprecedented geometric complexity. This offers exciting opportunities for innovative designs, and particularly topology optimization has been identified as a key technique to fully exploit the capabilities of AM. However, also AM involves manufacturing restrictions, such as limitations on the inclination of overhanging parts. To deal with this problem, either sacrificial supporting structures can be added during the process, or only self-supporting designs can be considered. Both approaches have disadvantages, as support structures add material and post-processing costs, while demanding exclusively self-supporting designs may impose strong restrictions on achievable performance. With current methods, designers are limited to a choice between these two extremes. To open up a wider range of designs, this paper presents and demonstrates a topology optimization formulation that allows the designer to find trade-off solutions between design performance and support structure costs, considering both printing and removal costs. 3689

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Economics of additive manufacturing for end-usable metal parts

Cited by 528 publications

References 21 publications

Design for Additive Manufacturing: Trends, opportunities, considerations, and constraints

Design for Additive Manufacturing: Trends, opportunities, considerations, and constraints

An additive manufacturing filter for topology optimization of print-ready designs

Topology Optimization for Additive Manufacturing With Controllable Support Structure Costs

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