Additively manufactured multi-material free-form structure with printed electronics

Goh, Guo Liang; Agarwala, Shweta; Goh, Guo Dong; Tan, Heang Kuan Joel; Zhao, Liping; Chuah, Tong Kuan; Yeong, Wai Yee

doi:10.1007/s00170-017-0972-z

Cited by 45 publications

(20 citation statements)

References 19 publications

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“…This instability may cause a shortcut or failure of the electric circuit. To achieve better control over the ink flow on the surface, an additional polishing process is always required before the ink dispensing [1,3,6].…”

Section: Introductionmentioning

confidence: 99%

Laser-Induced Graphene on Additive Manufacturing Parts

et al. 2019

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Additive manufacturing (AM) has become more prominent in leading industries. Recently, there have been intense efforts to achieve a fully functional 3D structural electronic device by integrating conductive structures into AM parts. Here, we introduce a simple approach to creating a conductive layer on a polymer AM part by CO2 laser processing. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Raman spectroscopy were employed to analyze laser-induced modifications in surface morphology and surface chemistry. The results suggest that conductive porous graphene was obtained from the AM-produced carbon precursor after the CO2 laser scanning. At a laser power of 4.5 W, the lowest sheet resistance of 15.9 Ω/sq was obtained, indicating the excellent electrical conductivity of the laser-induced graphene (LIG). The conductive graphene on the AM parts could serve as an electrical interconnection and shows a potential for the manufacturing of electronics components. An interdigital electrode capacitor was written on the AM parts to demonstrate the capability of LIG. Cyclic voltammetry, galvanostatic charge-discharge, and cyclability testing demonstrated good electrochemical performance of the LIG capacitor. These findings may create opportunities for the integration of laser direct writing electronic and additive manufacturing.

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Section: Introductionmentioning

confidence: 99%

Laser-Induced Graphene on Additive Manufacturing Parts

et al. 2019

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“…It is now possible to create parts from polymers and possibly elastomers, metals, ceramics, and even in some cases to combine or mix two or more construction materials in a same monolithic part. This allows for instance to include electro-conductive materials in a mechanical structure in order to produce parts with potentially complex shapes that include 2D or 3D electrical circuits (Macdonald et al, 2014 ; Goh et al, 2017 ). Depending on the technology, it is possible to build parts with sizes ranging from tens of micrometers to several meters long.…”

Section: Shaping Soft Structuresmentioning

confidence: 99%

Soft Robots Manufacturing: A Review

et al. 2018

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The growing interest in soft robots comes from the new possibilities offered by these systems to cope with problems that cannot be addressed by robots built from rigid bodies. Many innovative solutions have been developed in recent years to design soft components and systems. They all demonstrate how soft robotics development is closely dependent on advanced manufacturing processes. This review aims at giving an insight on the current state of the art in soft robotics manufacturing. It first puts in light the elementary components that can be used to develop soft actuators, whether they use fluids, shape memory alloys, electro-active polymers or stimuli-responsive materials. Other types of elementary components, such as soft smart structures or soft-rigid hybrid systems, are then presented. The second part of this review deals with the manufacturing methods used to build complete soft structures. It includes molding, with possibly reinforcements and inclusions, additive manufacturing, thin-film manufacturing, shape deposition manufacturing, and bonding. The paper conclusions sums up the pros and cons of the presented techniques, and open to developing topics such as design methods for soft robotics and sensing technologies.

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“…Murmura and Bravi (2017) examined the scope of adoption within the Italian lumber industry. Likewise, Goh et al (2018) investigated the FDM and PolyJet printing and proposed an approach to print products with embedded electro-electrical components.…”

Section: Literature Reviewmentioning

confidence: 99%

Perspectives of operational additive manufacturing: Case Studies from the Czech aerospace industry

Jirsák

Brunet-Thornton

2019

JEECAR

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This manuscript examines the results of a quantitative and qualitative survey on Additive Manufacturing in the Czech Republic, specifically the adoption within the aerospace industry. The study conducted in 2016 and 2017 provides a general understanding of the implementation. To better gauge the experience, two intensive interviews provide a candid perspective of the challenges encountered. The discussion depicts the central issues that each enterprise encounters during this transition from traditional to Additive Manufacturing. The findings reveal that, although the transformation is on-going, a solid knowledge base remains a critical element to successful deployment.

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Additively manufactured multi-material free-form structure with printed electronics

Cited by 45 publications

References 19 publications

Laser-Induced Graphene on Additive Manufacturing Parts

Laser-Induced Graphene on Additive Manufacturing Parts

Soft Robots Manufacturing: A Review

Perspectives of operational additive manufacturing: Case Studies from the Czech aerospace industry

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