The intersection of design, manufacturing, and surface engineering

Halada, Gary P.; Clayton, Clive R.

doi:10.1016/b978-081551500-5.50018-5

Cited by 4 publications

(3 citation statements)

References 121 publications

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“…In many cases, DED is employed as the coating tool to direct the deposition to small areas with a high degree of precisions to repair the failures such as cracks or defects in the corrosion resistance application . Besides, it is also able to make free standing 3D structures . For example, functionally graded, hard and anti‐corrosion properties of Co‐Cr‐Mo, printed on the surface of Ti‐6Al‐4V alloy, have overcome the corrosion issue and increase the durability at the same time .…”

Section: Additive Manufacturing Technologies For Fuel Cell Applicationmentioning

confidence: 99%

Accelerating Fuel Cell Development with Additive Manufacturing Technologies: State of the Art, Opportunities and Challenges

et al. 2019

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In recent years, the use of additive manufacturing (AM) has been demonstrated in the fabrication of components in polymer electrolyte membrane fuel cell, solid oxide fuel cell (SOFC), microbial fuel cell (MFC) and laminar flow-based fuel cell (LFFC). Various AM technologies have been successfully demonstrated in fuel cell manufacturing include material extrusion, powder bed fusion, vat photopolymerization and binder jetting. One of the unique advantages of AM is the ability to handle sophisticated design with features ranging from macro to micro scales, which are inaccessible by conventional manufacturing technologies. Well-designed complex 3D structures were reported to have the potential for increasing the performance of fuel cells. Therefore, AM presents itself as a promising fabrication method to promote the development of fuel cells. Besides, AM also showed its specialty in time-saving, flexibility, and on-demand manufacturability in the fabrication of fuel cell components. In spite of the prospects of AM in fuel cells, more studies and researches are required to overcome challenges, such as availability of material, manufacturing quality, and the costs. This review focuses on the advantages and applications of additive manufacturing that enable improvement in fuel cell performance. The critical challenges and directions for future development are also highlighted.

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Section: Additive Manufacturing Technologies For Fuel Cell Applicationmentioning

confidence: 99%

Accelerating Fuel Cell Development with Additive Manufacturing Technologies: State of the Art, Opportunities and Challenges

et al. 2019

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“…The great versatility of polymers has resulted in their extensive use in different sectors [1,2], offering outstanding mechanical, dielectric, thermal, and optical properties at a relatively low cost. They may be found in a variety of modern electronic device industries [3], such as aerospace transportation, 5G communication services [4], and 3D printing [5].…”

Section: Introductionmentioning

confidence: 99%

In Situ Synthesis of Gold Nanoparticles in Layer-by-Layer Polymeric Coatings for the Fabrication of Optical Fiber Sensors

et al. 2022

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A new method is proposed to tune the interferometric response of wavelength-based optical fiber sensors. Using the nanoparticle in-situ synthesis (ISS) technique, it is possible to synthesize gold nanoparticles (AuNPs) within a pre-existing polymeric thin film deposited at the end-face of an optical fiber. This post-process technique allows us to adjust the optical response of the device. The effect of the progressive synthesis of AuNPs upon polymeric film contributed to a remarkable optical contrast enhancement and a very high tuning capability of the reflection spectra in the visible and near-infrared region. The spectral response of the sensor to relative humidity (RH) variations was studied as a proof of concept. These results suggest that the ISS technique can be a useful tool for fiber optic sensor manufacturing.

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“…The additive manufacturing capabilities allow for material addition and sequential thermal mechanical analysis. 3D printers were first adopted and in protecting specific areas of an object from corrosion [4]. Directed energy deposition (DED) technologies allow the fabrication of 3D objects by utilizing focused energy source to melt the material deposited by a nozzle in the form of wire or powder (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

A Directed Energy Deposition Additive Manufacturing Process Simulated with ABAQUS AM Modeler

A¹,

Andres²

2021

Int J Robot Eng

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In this work, the ABAQUS AM modeler was employed to simulate a Directed Energy Deposition (DED) additive manufacturing process. The modeler provides an automated interface to prescribe the imposed tool path and process conditions. Though it may take some effort to understand how to use this element-birth technique approach, it is definitely worth the effort if you want to simulate additive manufacturing or similar processes. Two event series were utilized to prescribe material deposition and heat input. The automated element activation sequence was used to fabricate a thin (4 × 20 × 50 mm) and a thick (12 × 20 × 50 mm) wall component on a substrate. To approximate the 3D printing layer built up process, where filler metal is laid row by row after each scan, the component was fabricated with 10 successive layers (1 element through depth for each build layer), and each layer with 25 successive element rows. Once the first layer is deposited, the energy source and the nozzle are moved upwards to deposit the next layer and the process is repeated until the complete 3D object is being fabricated. It was found that to simulate problems where material and heat are added in a time and space dependent way, the use of the *ELEMENT PROGRESSIVE ACTIVATION option is much simpler than its counterpart *MODEL CHANGE. The AM Modeler helps to properly define the required data to approximate in a simple manner the 3D printing layer built up process. A laser path script was created in python language to allow for the path of the energy source and the nozzle. A right combination of printing parameters (feedstock and heat input) in the DED process has been established.

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The intersection of design, manufacturing, and surface engineering

Cited by 4 publications

References 121 publications

Accelerating Fuel Cell Development with Additive Manufacturing Technologies: State of the Art, Opportunities and Challenges

Accelerating Fuel Cell Development with Additive Manufacturing Technologies: State of the Art, Opportunities and Challenges

In Situ Synthesis of Gold Nanoparticles in Layer-by-Layer Polymeric Coatings for the Fabrication of Optical Fiber Sensors

A Directed Energy Deposition Additive Manufacturing Process Simulated with ABAQUS AM Modeler

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