scholarly journals Production of technological plugs for engine box and oil system using additive technologies

2021 ◽  
Vol 13 (S) ◽  
pp. 21-27
Author(s):  
Oksana A. BYTSENKO ◽  
Natalya A. BESSONOVA ◽  
Emil E. DZHAFAROV ◽  
Victor V. TISHKOV ◽  
Denis A. GNEVASHEV
Keyword(s):  
3D Printing ◽  
Additive Technologies ◽  
Additive Technology ◽  
Production Methods ◽  
Subsequent Processing ◽  
Internal Cavities ◽  
Deposition Modeling ◽  
The Cost ◽  
Printing Time

Today, technological plugs designed to protect the internal cavities of parts and assembly units are manufactured using such production methods as casting or stamping. At the same time, their subsequent processing is a time-consuming process. Additive technologies can save material, save time and reduce expenses. This study considers the possibility of manufacturing technological plugs for engine box and oil system using additive technologies. The cover plugs were printed using the Fusion Deposition Modeling (FDM) method on a Russian-made ZENIT printer. PLA plastic was chosen for 3D printing. The plug models were optimised, which allowed correcting and reducing the estimated printing time. In particular, some plugs were made assemblable, which helped to avoid a large number of printing supports. The production of technological plugs using additive technology allows reducing the cost of the finished product, the weight of the plugs and the estimated time of their production.

scholarly journals ANALYZING THE EFFECT OF NOZZLE DIAMETER IN FUSED DEPOSITION MODELING FOR EXTRUDING POLYLACTIC ACID USING OPEN SOURCE 3D PRINTING

2016 ◽  
Vol 78 (10) ◽  
Author(s):  
Nor Aiman Sukindar ◽  
M. K. A. Ariffin ◽  
B. T. Hang Tuah Baharudin ◽  
Che Nor Aiza Jaafar ◽  
Mohd Idris Shah Ismail
Keyword(s):  
Pressure Drop ◽  
3D Printing ◽  
Polylactic Acid ◽  
Fused Deposition Modeling ◽  
Nozzle Diameter ◽  
Optimum Range ◽  
Fused Deposition ◽  
Geometrical Error ◽  
Deposition Modeling ◽  
Printing Time

Fused deposition modeling (FDM) is one of the Rapid Prototyping (RP) technologies. The 3D Printer has been widely used in the fabrication of 3D products. One of the main issues has been to obtain a high quality for the finished parts. The present study focuses on the effect of nozzle diameter in terms of pressure drop, geometrical error as well as extrusion time. While using polylactic acid (PLA) as a material, the research was conducted using Finite Element Analysis (FEA) by manipulating the nozzle diameter, and the pressure drop along the liquefier was observed. The geometrical error and printing time were also calculated by using different nozzle diameters. Analysis shows that the diameter of the nozzle significantly affects the pressure drop along the liquefier which influences the consistency of the road width thus affecting the quality of the product’s finish. The vital aspect is minimizing the pressure drop to be as low as possible, which will lead to a good quality final product. The results from the analysis demonstrate that a 0.2 mm nozzle diameter contributes the highest pressure drop, which is not within the optimum range. In this study, by considering several factors including pressure drop, geometrical error and printing time, a 0.3 mm nozzle diameter has been suggested as being in the optimum range for extruding PLA material using open-source 3D printing. The implication of this result is valuable for a better understanding of the melt flow behavior of the PLA material and for choosing the optimum nozzle diameter for 3D printing.

Electro Physical Hardening of Non Metallic Composite Materials in Additive Technology

2017 ◽  
Vol 265 ◽  
pp. 490-495
Author(s):  
I.V. Zlobina ◽  
N.V. Bekrenev ◽  
G.K. Muldasheva
Keyword(s):  
3D Printing ◽  
Strength Properties ◽  
Additive Technologies ◽  
Material Structure ◽  
Powder Materials ◽  
Additive Technology ◽  
Physical Hardening ◽  
Main Production ◽  
3D Printed ◽  
Physical Effects

The analysis of the prospects for the use of additive technologies in the production of aerospace equipment has been performed. It is shown that one of the main problems of implementation of these technologies in the main production is the lack of strength and endurance of 3D printing objects. The influence of electro physical effects of varying intensity on the strength properties of the objects from powder materials, formed by 3D printing has been researched. It is found that the electromagnetic field of medium intensity of the investigated range causes an increase in the flexural strength of the plates made of powder Zp130 impregnated with cyanoacrylate Z-Bond TM90, not less than 38%. Thus, a 24% decrease in pore size and reduction in their dispersion by almost 30% is noticed. It is shown that the composite material structure becomes denser with a large number of connections between the agglomerates. The increase in the number of connections, and the increased uniformity of the structure after the electrophysical influence is one of the mechanisms to improve the strength of 3D printed objects exposed to electro-physical influence.

scholarly journals ADDITIVE TECHNOLOGY IN CONSTRUCTION

2020 ◽  
pp. 33-42
Author(s):  
Yu.V. Denisova
Keyword(s):  
3D Printing ◽  
Quartz Sand ◽  
Additive Technologies ◽  
Additive Technology ◽  
Dense Structure ◽  
Innovative Technologies ◽  
Basic Properties ◽  
Construction Market

the main innovative technologies of construction 3-D printing in modern construction are considered. This direction of research confirms the relevance of the selected issue. Development of compositions for building 3D printing allows for construction of not only individual constructions, but also buildings and constructions in general. Experimental compositions with effective for building print supplements will receive enough dense structure of concrete are developed. To assess the use of quartz sand for use in 3-d printers studies were conducted of their basic properties. The role of additive technologies in modern construction in the construction of buildings and structures that will lead to future changes in the construction market.

scholarly journals The creation of objects of the Kazakh culture with the use of additive technologies

2020 ◽  
Vol 329 ◽  
pp. 03022
Author(s):  
Railya Mukhamadeyeva ◽  
Yerzhan Akinov
Keyword(s):  
3D Printing ◽  
National Culture ◽  
Three Dimensional ◽  
Digital Technologies ◽  
Additive Technologies ◽  
Additive Technology ◽  
New Production ◽  
The Creation ◽  
The Republic ◽  
Gold Producer

The article presents material about the main prospects for the introduction and operation of new additive technology in the Republic of Kazakhstan. Additive technology (3D printing) is a global phenomenon that contributes to the development of new industries that use digital technologies. 3D printing is necessary for the production of quality products. Kazakhstan, the world’s fifteenth largest gold producer, does not actively promote the jewellery industry. Jewellery is an obligatory attribute of a family celebration and an element of the national culture of Kazakhstan. Jewellery products purchased in Kazakhstan are only 10% local; all the rest are from Russia, Turkey and Europe. New production of jewellery products using three-dimensional modelling and additive technologies should become an image industry in Kazakhstan, due to exclusivity and affordable cost

scholarly journals Fluctuating Intelligence. Bioinspired 3D Printed Design on Textile

2021 ◽  
Vol 74 (74) ◽  
Author(s):  
Gabriele Pontillo ◽  
Carla Langella
Keyword(s):  
3D Printing ◽  
Design Thinking ◽  
Additive Technologies ◽  
Production Methods ◽  
Direct Printing ◽  
The Past ◽  
New Frontier ◽  
The Future ◽  
3D Printed ◽  
The Relationship

"Since its appearance in the world of design, 3D printing has been acclaimed as a new opportunity to free design thinking from the constraints imposed by traditional production processes. Over the past decade, additive systems have been applied in a variety of cultural and production contexts, crossing the boundaries of industry and beyond the semi-artisan dimension that has long characterized them. If 3D printing is now recognized as one of the production methods of the future, it is necessary to question the next prospects and especially the future of the relationship between design and additive technologies. This paper intends to propose the scenario of the use of additive technologies of direct printing on fabrics as a new frontier of design and production that allows the development of changeable, flexible and composite artifacts increasingly related to the multi-functionality of nature and the human body and increasingly adaptable to the complexity of the needs of contemporary living."

scholarly journals Monitoring of the Impacts of Used Materials for Resulting Attributes of an Electric Motor Created via Additive Technology

TEM Journal ◽  
2020 ◽  
pp. 826-830
Author(s):  
Jozef Török ◽  
Martin Pollák ◽  
Monika Töröková ◽  
Zuzana Murčinková ◽  
Marek Kočiško
Keyword(s):  
Magnetic Field ◽  
3D Printing ◽  
Electric Motor ◽  
Additive Technologies ◽  
Additive Technology ◽  
The Individual ◽  
The Magnetic Field

The article discusses the possibilities of production of a brushless electric motor with usage of additive technologies and verification the functionality of the design. A few electromotor stators have been produced by 3D printing. They were made of PLA plastic with different admixtures to increase the intensity of the magnetic field. The contribution at the end offers a comparison comprising the individual measurements and the efficiency of the electric motor.

scholarly journals 3D Printing Optimization for Environmental Sustainability: Experimenting with Materials of Protective Face Shield Frames

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6595
Author(s):  
Kristína Zgodavová ◽  
Kristína Lengyelová ◽  
Peter Bober ◽  
José Alberto Eguren ◽  
Amaia Moreno
Keyword(s):  
3D Printing ◽  
Environmental Sustainability ◽  
Fused Deposition Modeling ◽  
Multi Objective Optimization ◽  
Thermoplastic Material ◽  
Fused Deposition ◽  
Weighted Sum Method ◽  
Deposition Modeling ◽  
The Given ◽  
Printing Time

The motivation for research on 3D printing of protective face shields was the urgent societal demand for healthcare in the fight against the spread of COVID19 pandemic. Research is based on a literature review that shows that objects produced by additive technologies do not always have consistent quality suitable for the given purpose of use. Besides, they have different effects on the environment and leave different footprints. The overall goal of the research was to find out the most suitable thermoplastic material for printing shield frames in terms of mechanical properties, geometric accuracy, weight, printing time, filament price, and environmental sustainability. Fused deposition modeling (FDM) technology was used for 3D printing, and three different filaments were investigated: polylactic acid (PLA), polyethylene terephthalate (PETG), and polyhydroxyalkanoate (PHA). The weighted sum method for multi-objective optimization was used. Finally, PHA material was chosen, mainly due to its environmental sustainability, as it has the most negligible impact on the environment.

Biodegradable 3D Printed Polymer Microneedles for Transdermal Drug Delivery

2018 ◽  
Author(s):  
Michael A. Luzuriaga ◽  
Danielle R. Berry ◽  
John C. Reagan ◽  
Ronald A. Smaldone ◽  
Jeremiah J. Gassensmith
Keyword(s):  
Drug Delivery ◽  
3D Printing ◽  
Transdermal Drug Delivery ◽  
Fused Deposition Modeling ◽  
Fused Deposition ◽  
Modeling Software ◽  
Deposition Modeling ◽  
3D Printed ◽  
Microfabrication Technique ◽  
Mechanical Strengths

Biodegradable polymer microneedle (MN) arrays are an emerging class of transdermal drug delivery devices that promise a painless and sanitary alternative to syringes; however, prototyping bespoke needle architectures is expensive and requires production of new master templates. Here, we present a new microfabrication technique for MNs using fused deposition modeling (FDM) 3D printing using polylactic acid, an FDA approved, renewable, biodegradable, thermoplastic material. We show how this natural degradability can be exploited to overcome a key challenge of FDM 3D printing, in particular the low resolution of these printers. We improved the feature size of the printed parts significantly by developing a post fabrication chemical etching protocol, which allowed us to access tip sizes as small as 1 μm. With 3D modeling software, various MN shapes were designed and printed rapidly with custom needle density, length, and shape. Scanning electron microscopy confirmed that our method resulted in needle tip sizes in the range of 1 – 55 µm, which could successfully penetrate and break off into porcine skin. We have also shown that these MNs have comparable mechanical strengths to currently fabricated MNs and we further demonstrated how the swellability of PLA can be exploited to load small molecule drugs and how its degradability in skin can release those small molecules over time.

Comparative characteristics of provisional crowns made by CAD/CAM milling and 3D printing

2020 ◽  
pp. 45-49
Author(s):  
A.V. Stomatov ◽  
D.V. Stomatov ◽  
P.V. Ivanov ◽  
V.V. Marchenko ◽  
E.V. Piitsky ◽  
...  
Keyword(s):  
3D Printing ◽  
Good Alternative ◽  
Digital Model ◽  
Dental Practice ◽  
Production Methods ◽  
Automated Production ◽  
3D Printing Technology ◽  
Cad Cam ◽  
Milling Method ◽  
Technology Comparison

In this work, the authors studied and compared the two main methods used in dental practice for the automated production of orthopedic structures: the widely used CAD / CAM milling method and the 3D printing technology. As an object of research, temporary crowns were used, which were made on the basis of the same digital model: a) by the method of CAD / CAM milling from polymethylmethacrylate disks; b) by 3D printing from photopolymer resin based on LCD technology. Comparison of production methods and finished designs was carried out according to the following characteristics: strength, durability, aesthetic qualities, accuracy of orthopedic designs, etc. According to the results of the study, it was concluded that 3D printing can be a good alternative to CAD / CAM milling in solving problems of temporary prosthetics.

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