3D printing a jet engine: An undergraduate project to exploit additive manufacturing now and in the future

2018 ◽  
Vol 16 ◽  
pp. 22-25 ◽  
Author(s):  
C.J. Smith ◽  
S. Tammas-Williams ◽  
P.S. Mahoney ◽  
I. Todd
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Jet Engine ◽  
The Future

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.

scholarly journals Ready for Anything?

2021 ◽  
Vol 143 (3) ◽  
pp. 30-35
Author(s):  
Carlos M. Gonzalez
Keyword(s):  
Supply Chain ◽  
Additive Manufacturing ◽  
3D Printing ◽  
Flexible Production ◽  
The Future

Abstract Stories of using 3D printing to respond to the pandemic throw a spotlight on additive manufacturing and its potential for fast, flexible production of critically needed parts. Whether it was face shields, nasopharyngeal swabs, or respiratory masks, additive manufacturing rose to the challenge to fill in the gap caused by a disrupted supply chain. Now, some industry observers are starting to ask whether 3D printing could be the future of manufacturing.

scholarly journals Locomotive engines and the future of railway automotive power in Africa: A review

2021 ◽  
Vol 40 (4) ◽  
pp. 660-673
Author(s):  
I.I. Ozigis ◽  
J.I.O. Oche ◽  
N.M. Lawal
Keyword(s):  
South Africa ◽  
Cast Iron ◽  
Additive Manufacturing ◽  
Diesel Engine ◽  
Aluminum Alloys ◽  
3D Printing ◽  
Spare Parts ◽  
Ductile Cast Iron ◽  
Track Length ◽  
The Future

This work presents the review of locomotives and the future of railway automotive power in Africa. Locomotives down time on account of inadequate spare parts still remains a challenge in African. It is thus, imperative to review the locomotives in African, to establish the current capabilities as well as provide recommendations to bridge the gaps and its extrapolated trends in future. Firstly, the comparison factors were track length, electrified rails, number of locomotives and yearly passengers on each of Egypt, Ghana, Kenya, Nigeria, South Africa and Zambia rails. Secondly, the focus was on engine parameters from literatures and maintenance logbooks of locomotives. From available data, it was found that South Africa and Egypt have more advanced rail system than the rest four selected countries. It was also found that additive manufacturing, 3D printing, ductile cast iron and die-forging can be used to produce the engine body for diesel engine using steel and aluminum alloys while aluminum silicon and tin doped with copper are good for reciprocation mechanisms. And finally, increased reliability of locomotives can be guided by an engine selection matrix, while use of renewable and energy hybridization are needed to meet the expansion of railroads in Africa.

scholarly journals 3D PRINTING AND NEW SECURITY THREATS

2020 ◽  
Vol 3 (7) ◽  
pp. 197-210
Author(s):  
Franklin Epiphanio Gomes de Almeida
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Disruptive Technology ◽  
Security Threats ◽  
Enabling Technology ◽  
Security Risks ◽  
Horizon Scanning ◽  
The Future ◽  
Potential Impact ◽  
Early Indicators

The present study is a horizon scanning report based on the British model Sigma Scan. It explores possible future issues and trends in 3D printing and its potential impact on society, particularly with regard to new security threats that its spread is expected to cause. This exercise allows for an examination based on the best predictions of how the future of this disruptive and, at the same time, enabling technology is likely to be, in order to better understand the uncertainties that its development will bring. This report addresses the potential implications of the development of 3D printing, in particular for crimes, the likely early indicators of the development of this technology, the simultaneous developments that can serve as inhibitors and drivers, the potential crime preventers and promoters, and the evidence that indicates the possibility of the predicted events. Keywords: 3D printing, additive manufacturing, disruptive technology, enabling technology, security risks.

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...

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