The Validation of a Genetically Inspired Aircaft Structural Design using an Additive Manufacturing Technique

Author(s):  
Marcelo Kobayashi ◽  
Josh Deaton ◽  
Robert A. Reuter
Author(s):  
Shiyu Zhang ◽  
Ravi Kumar Arya ◽  
William G. Whittow ◽  
Darren Cadman ◽  
Raj Mittra ◽  
...  

TEM Journal ◽  
2020 ◽  
pp. 966-970
Author(s):  
Damir Hodžić ◽  
Adi Pandžić ◽  
Ismar Hajro ◽  
Petar Tasić

Widely used additive manufacturing technique for plastic materials is Fused Deposition Modelling (FDM). The FDM technology has gained interest in industry for a wide range of applications, especially today when large number of different materials on the market are available. There are many different manufacturers for the same FDM material where the difference in price goes up to 50%. This experimental study investigates possible difference in strength of the 3D printed PLA material of five different manufacturers. All specimens are 3D printed on Ultimaker S5 printer with the same printing parameters, and they are all the same colour.


2019 ◽  
Vol 5 ◽  
Author(s):  
Daniel-Alexander Türk ◽  
Fabian Rüegg ◽  
Manuel Biedermann ◽  
Mirko Meboldt

This paper presents a novel manufacturing technique for complex-shaped, hybrid metal composite structures leveraging the design freedom of additive manufacturing (AM). The key novelty of this research is an approach for an autoclave-suitable and removable tooling, which consists of a 3D-printed functional shell and a structural filler material. In this process, a layup shell is produced with AM and filled with a temperature-resistant curing support to form a removable inner tooling. The functional shell has integrated design features for the positioning and the fixation of metallic interface elements and is removed after curing through integrated breaking lines. The feasibility of this manufacturing technique is demonstrated by fabricating a novel lightweight structure for the hydraulic quadruped (HyQ) robot. Selective laser sintering (SLS) was used to produce the functional shell tooling. Titanium interface elements made via selective laser melting (SLM) were assembled to the shell and co-cured to carbon fiber using an autoclave prepreg process. The resulting multi-material structure was tested in ultimate strength and successfully operated on the HyQ robot. Weight savings of 55% compared to a reference design and the mechanical viability of the multi-material structure indicate that the proposed manufacturing technique is appropriate for individualized hybrid composite structures with complex geometries.


Author(s):  
Ali Behroozfar ◽  
Soheil Daryadel ◽  
S. Reza Morsali ◽  
Rodrigo A. Bernal ◽  
Majid Minary-Jolandan

Nanotwinned (nt) metals exhibit superior electrical and mechanical properties compared to their coarse-grained and nano-grained counterparts. They have a unique microstructure with grains that contain layered nanoscale twins divided by coherent twin boundaries (TBs). Since nanotwinned metals have low electrical resistivity and high resistance to electromigration, they are ideal materials for making nanowires, interconnections and switches. In this paper we show the possibility of making nanotwinned copper interconnections on a non-conductive substrate using a novel additive manufacturing technique called L-PED. Through this approach, microscale interconnections can be directly printed on the substrate in environmental conditions and without post processing.


Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 542 ◽  
Author(s):  
Konda Gokuldoss Prashanth ◽  
Zhi Wang

Additive Manufacturing (AM) is an emerging manufacturing technique of immense engineering and scientific importance and is also regarded as the technique of the future [...]


2020 ◽  
Vol 5 (4) ◽  
pp. 395-404 ◽  
Author(s):  
Alexandra Inberg ◽  
Dana Ashkenazi ◽  
Giora Kimmel ◽  
Yosi Shacham-Diamand ◽  
Adin Stern

Author(s):  
V. Vijayan ◽  
S. Arun Kumar ◽  
S. Gautham ◽  
M. Mohamed Masthan ◽  
N. Piraichudan

Sign in / Sign up

Export Citation Format

Share Document