Additive Manufacturing for Civil Infrastructure Design and Construction: Current State and Gaps

2018 ◽  
Author(s):  
Abhinav Bhardwaj ◽  
Na Zou ◽  
Z. J. Pei
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Consumer Goods ◽  
Medical Industry ◽  
Civil Infrastructure ◽  
Current State ◽  
Infrastructure Design ◽  
Design And Construction ◽  
State Of The Field

Additive manufacturing (AM) has applications in several fields ranging from aerospace and consumer goods to the medical industry. However, applications of AM in civil infrastructure design and construction are very limited. Based on information shared at the NSF workshop on Additive Manufacturing (3D Printing) for Civil Infrastructure Design and Construction in July 2017, this paper summarizes the current state of the field, gaps, and recommendations.

Additive Manufacturing Enabled Supply Chain in Combating COVID-19

2020 ◽  
Vol 05 (04) ◽  
pp. 495-505
Author(s):  
Ranjan Arora ◽  
Pawan K Arora ◽  
Harish Kumar ◽  
Meena Pant
Keyword(s):  
Supply Chain ◽  
Additive Manufacturing ◽  
3D Printing ◽  
Critical Role ◽  
Three Dimensional ◽  
Medical Industry ◽  
Solid Object ◽  
Hand Sanitizer ◽  
Medical Supplies

Additive manufacturing (AM) is a method in which three-dimensional structures are successively laid down to create a solid object. The inherent advantages of AM technology are successfully drafted and exploited by the different organization across the globe. During the time of pandemic i.e. COVID-19, 3D printing has come to rescue and has been used for manufacturing critical medical supplies. 3D printing has been used in manufacturing some of the critical items like ventilators valves, face shields, swabs, oxygen valves, hand sanitizer holders, 3-DP lung models, etc. The main reason for its success has been the ability of 3D printing to print locally by using digital designs and thus reducing the number of supply chain actors. Also, the ability of 3D printing to manufacture/print complex geometrical designs locally is the main reason for its successful adoption during COVID-19. In this paper, we have discussed how AM has come to the forefront in fighting this pandemic. Various AM techniques have played a critical role in bridging the supply chain gap in the medical industry and locally printing critical devices. There were certain apprehensions before the pandemic along with slow adoption but this pandemic has also increased the adoption of AM due to its ability to overcome the demand created by COVID-19.

scholarly journals Present state of 3D printing from glass

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Vlastimil Hotař ◽  
Marie Stará ◽  
Veronika Máková ◽  
Barbora Nikendey Holubová
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Additive Technologies ◽  
Transparent Glass ◽  
Current State ◽  
Plastic Metal ◽  
Valuable Method ◽  
Specific Shape ◽  
High Degree ◽  
And Robotics

Abstract This paper deals with the issue of additive technologies using glass. At the beginning, our research dealt with a review of the current state and specification of potentially interesting methods and solutions. At present, this technology is being actively developed and studied in glass research. However, as the project started at the Department of Glass Producing Machines and Robotics, the following text will be more focused on the existing 3D printing machinery and basic technological approaches. Although “additive manufacturing” in the sense of adding materials has been used in glass manufacturing since the beginning of the production of glass by humans, the term additive manufacturing nowadays refers to 3D printing. Currently, there are several approaches to 3D printing of glass that have various outstanding advantages, but also several serious limitations. The resulting products very often have a high degree of shrinkage and rounding (after sintering), and specific shape structures (after the application in layers), but they generally have a large number of defects (especially bubbles or crystallization issues). Some technologies do not lead to the production of transparent glass and, therefore, its optical properties are significantly restricted. So far, the additive manufacturing of glass do not produce goods that are price competitive to goods produced by conventional glass-making technologies. If 3D glass printing is to be successful as an industrial and/or highly aesthetically valuable method, then it must bring new and otherwise unachievable features and properties, as with 3D printing of plastic, metal, or ceramics. Nowadays, these technologies promise to be such a tool and are beginning to attract more and more interest.

The changing face of additive manufacturing

2017 ◽  
Vol 28 (1) ◽  
pp. 10-17 ◽  
Author(s):  
Ian Gibson
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Design Methodology ◽  
State Of The Art ◽  
Personal Perspective ◽  
Numerous Application ◽  
Content Type ◽  
The Past ◽  
Current State ◽  
The Future

Purpose The purpose of this paper is to discuss the current state-of-the-art in additive manufacturing, more commonly known as 3D printing, from the business perspectives. The primary drivers behind the development of the associated technologies are considered along with features that limit growth. Design/methodology/approach The approach is a personal perspective, based on approximately 25-years study of the development of the associated technologies and applications. Findings The discussion has found that the technology is still growing healthily, but with an understanding that there are numerous application areas that should be considered separately. Some areas are significantly more mature than others and success in some areas does not guarantee success in others. Originality/value This viewpoint has been prepared for the current state-of-the-art and can be compared with earlier viewpoints to see how things may have changed in the past. This should be of value to those interested to explore how the technology has developed in recent times and how it may move into the future.

A Survey of the Use of Additive Fabrication in Component Replacement and Customised Automotive Modifications

2018 ◽  
Vol 8 (4) ◽  
pp. 23-34
Author(s):  
Tom Page
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
3D Printer ◽  
Printing Technology ◽  
Additive Fabrication ◽  
3D Printing Technology ◽  
Current State ◽  
The Common ◽  
Component Replacement ◽  
At Home

Given the relatively recent rise in domestic 3D printing technology and its affordability, many new and novel uses for these printers are emerging. Currently, desktop 3D printer sales are dominated by technology enthusiasts and ‘makers', applying this technology to educational electronic and mechanical projects. This research artucke assesses the current state of additive manufacturing (AM) and investigates the potential for use in DIY automotive modification. 3D printing technology has the potential to aid enthusiasts in the work they perform and break the limits of traditional, labour-intensive manufacturing and fabrication practices. Research was conducted to first establish the common projects undertaken by automotive ‘DIY'ers' and then further questions were posed with the aim of determining whether there are viable applications in the field of automotive modification at home.

scholarly journals Efficient 3D printing via photooxidation of ketocoumarin based photopolymerization

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xiaoyu Zhao ◽  
Ye Zhao ◽  
Ming-De Li ◽  
Zhong’an Li ◽  
Haiyan Peng ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Visible Light ◽  
Light Exposure ◽  
Three Dimensional ◽  
3D Printer ◽  
Light Penetration ◽  
Viable Solution

AbstractPhotopolymerization-based three-dimensional (3D) printing can enable customized manufacturing that is difficult to achieve through other traditional means. Nevertheless, it remains challenging to achieve efficient 3D printing due to the compromise between print speed and resolution. Herein, we report an efficient 3D printing approach based on the photooxidation of ketocoumarin that functions as the photosensitizer during photopolymerization, which can simultaneously deliver high print speed (5.1 cm h−1) and high print resolution (23 μm) on a common 3D printer. Mechanistically, the initiating radical and deethylated ketocoumarin are both generated upon visible light exposure, with the former giving rise to rapid photopolymerization and high print speed while the latter ensuring high print resolution by confining the light penetration. By comparison, the printed feature is hard to identify when the ketocoumarin encounters photoreduction due to the increased lateral photopolymerization. The proposed approach here provides a viable solution towards efficient additive manufacturing by controlling the photoreaction of photosensitizers during photopolymerization.

Fused Filament Fabrication 3D Printed Polylactic Acid Electroosmotic Pumps

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Liang Wu ◽  
Stephen Beirne ◽  
Joan-Marc Cabot Canyelles ◽  
Brett Paull ◽  
Gordon G. Wallace ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Polylactic Acid ◽  
Fused Filament Fabrication ◽  
Flexible Approach ◽  
Electroosmotic Pump ◽  
3D Printed ◽  
Electroosmotic Pumps

Additive manufacturing (3D printing) offers a flexible approach for the production of bespoke microfluidic structures such as the electroosmotic pump. Here a readily accessible fused filament fabrication (FFF) 3D printing...

3D Printing of Biphasic Inks: Beyond Single-Scale Architectural Control

2021 ◽  
Author(s):  
Gianluca Cidonio ◽  
Marco Costantini ◽  
Filippo Pierini ◽  
Chiara Scognamiglio ◽  
Tarun Agarwal ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Disruptive Technology ◽  
Main Research ◽  
Single Scale

To date, Additive Manufacturing (AM) has come to the fore as a major disruptive technology embodying two main research lines - developing increasingly sophisticated printing technologies and new processable materials....

scholarly journals Rapid fabrication of MOF-based mixed matrix membranes through digital light processing

2021 ◽  
Author(s):  
Alexey Pustovarenko ◽  
Beatriz Seoane ◽  
Edy Abou-Hamad ◽  
Helen E King ◽  
Bert Weckhuysen ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Processing Speed ◽  
Mixed Matrix Membranes ◽  
Scientific Interest ◽  
Mixed Matrix ◽  
Digital Light Processing ◽  
Additive Manufacturing Technology ◽  
Rapid Fabrication ◽  
Manufacturing Methods

3D printing, also known as additive manufacturing technology, has greatly expanded across multiple sectors of technology replacing classical manufacturing methods by combining processing speed and high precision. The scientific interest...

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