ECONOMIC EFFICIENCY OF APPLICATION OF ADDITIVE TECHNOLOGIES (3D PRINTING) IN THE MANUFACTURING INDUSTRY

Three-dimensional (3D) printing of continuous fiber-reinforced composites has been developed in recent decades as an alternative means to handle complex structures with excellent design flexibility and without mold forming. Although 3D printing has been increasingly used in the manufacturing industry, there is still room for the development of theories about how the process parameters affect microstructural properties to meet the mechanical requirements of the printed parts. In this paper, we investigated continuous carbon fiber-reinforced polyphenylene sulfide (CCF/PPS) as feedstock for fused deposition modeling (FDM) simulated by thermocompression. This study revealed that the samples manufactured using a layer-by-layer process have a high tensile strength up to 2041.29 MPa, which is improved by 68.8% compared with those prepared by the once-stacked method. Moreover, the mechanical–microstructure characterization relationships indicated that the compactness of the laminates is higher when the stacked CCF/PPS are separated, which can be explained based on both the void formation and the nanoindentation results. These reinforcements confirm the potential of remodeling the layer-up methods for the development of high-performance carbon fiber-reinforced thermoplastics. This study is of great significance to the improvement of the FDM process and opens broad prospects for the aerospace industry and continuous fiber-reinforced polymer matrix materials.

Download Full-text

3D printing technologies for creating models and nozzles in an aerodynamic shock tunnel experiment

Journal of Physics Conference Series ◽

10.1088/1742-6596/2103/1/012033 ◽

2021 ◽

Vol 2103 (1) ◽

pp. 012033

Author(s):

M A Kotov ◽

N A Monakhov ◽

S A Poniaev ◽

P A Popov ◽

K V Tverdokhlebov

Keyword(s):

3D Printing ◽

High Speed ◽

Additive Technologies ◽

Structure And Properties ◽

Dynamic Experiment ◽

Advantages And Disadvantages ◽

Nozzle Block ◽

Rapid Prototyping And Manufacturing ◽

Manufacturing Techniques ◽

Traditional Manufacturing

Abstract The features of 3D printing method for rapid prototyping and manufacturing of models for a pulsed high-speed gas-dynamic experiment are considered. Modern additive technologies allow the production of models. The basic properties of the materials and the advantages of 3D printing methods are described. The structure and properties of the obtained models can be unattainable using traditional manufacturing techniques. The design of the wind tunnel nozzle block is considered, which provides for the production of profiled contours using 3D printing. The advantages and disadvantages of use of such units on the shock tube are considered.

Download Full-text

Developement of 3D printer for silicate-based materials

Science & Technology Development Journal - Engineering and Technology ◽

10.32508/stdjet.v2isi2.460 ◽

2020 ◽

Vol 2 (SI2) ◽

pp. First

Author(s):

Can Chi Trieu ◽

Minh-Thien Nguyen ◽

Thien-Toan Quan Le ◽

Manh-Quyen Dam ◽

Anh-Tu Tran ◽

...

Keyword(s):

3D Printing ◽

Manufacturing Industry ◽

3D Printer ◽

Printing Technology ◽

3D Printing Technology ◽

Frame Element ◽

Key Factor ◽

Stepper Motors ◽

Mach 3 ◽

Near Future

3D printer and 3D printing technology are now considered as one of the key factor in the manufacturing industry. In the near future, we could envisage different application of 3D printing method in the sector of materials processing and production. In the sector of civil engineering, they existed somewhere some construction works developed with 3D printing technology. In this study, we aim to manufacture laboratory-scale printers with nozzles and extrusion feeding systems suitable for paste such as the case of clay-based materials of silicate industry. The movement system was encoded and controlled via the motherboard (Mach 3 controller software). Stepper motors and shaft drives were also implemented in the frame element of such printer. The feeding system was designed based on the extrusion method including cylinder and piston element. Based on that, sample size 200x300x300mm was available for operation testing. Concerning the performance of the instrument, we have obtained printed specimens with different geometric shapes with complexity. From the obtained result, we also discussion on the feasibility up scaling the study and developing a 3D printer for silicate based materials.

Download Full-text

Special Issue of the Manufacturing Engineering Society 2019 (SIMES-2019)

Materials ◽

10.3390/ma13092133 ◽

2020 ◽

Vol 13 (9) ◽

pp. 2133

Author(s):

Eva María Rubio ◽

Ana María Camacho

Keyword(s):

Applied Sciences ◽

Additive Manufacturing ◽

3D Printing ◽

Manufacturing Industry ◽

Green Manufacturing ◽

Manufacturing Processes ◽

New Materials ◽

Special Issue ◽

Engineering Society ◽

Manufacturing Engineering

The Special Issue of the Manufacturing Engineering Society 2019 (SIMES-2019) has been launched as a joint issue of the journals “Materials” and “Applied Sciences”. The 29 contributions published in this Special Issue of Materials present cutting-edge advances in the field of manufacturing engineering focusing on additive manufacturing and 3D printing, advances and innovations in manufacturing processes, sustainable and green manufacturing, manufacturing of new materials, metrology and quality in manufacturing, industry 4.0, design, modeling, and simulation in manufacturing engineering and manufacturing engineering and society. Among them, these contributions highlight that the topic “additive manufacturing and 3D printing” has collected a large number of contributions in this journal because its huge potential has attracted the attention of numerous researchers over the last years.

Download Full-text

Theoretical Concepts of the Modification Effect on the Interparticle Energy of the Polymer-Mineral Dispersions for 3D Printing

Materials Science Forum ◽

10.4028/www.scientific.net/msf.974.107 ◽

2019 ◽

Vol 974 ◽

pp. 107-112

Author(s):

Valentina A. Poluektova

Keyword(s):

3D Printing ◽

Construction Industry ◽

Additive Technologies ◽

Aggregative Stability ◽

Layer Potential ◽

Theoretical Concepts ◽

Total Potential ◽

Structural Forces ◽

Combined Action ◽

Molecular Attraction

The molecular gravity and electrostatic repulsion energies were calculated taking into account the structural forces between the modified particles of the polymer-chalk dispersion, which was chosen as a model polymer-chalk system when studying systems for the innovative construction industry using additive technologies (3D printing). In the above calculations, differences for the studied systems are taken into account in such quantities as the complex Hamaker constant, the ionic strength of the solution, and the diffuse layer potential. The calculation of the total potential curves of modified and unmodified polymer-chalk dispersions and the contribution of various factors of aggregative stability analysis showed that as a result of the adsorption of modifier molecules on the particles surface, the action of molecular attraction forces is overcome by the combined action of electrostatic and adsorption-solvate factors of aggregative stability.

Download Full-text

Additive technologies in military affairs

Russian Military Medical Academy Reports ◽

10.17816/rmmar77796 ◽

2021 ◽

Vol 40 (2) ◽

pp. 5-12

Author(s):

Stepan A. Peleshok ◽

Aleksandr Ya. Fisun ◽

Andrey V. Morozov ◽

Sergey V. Kalinin ◽

Marina I. Eliseeva

Keyword(s):

3D Printing ◽

Round Table ◽

Additive Technologies ◽

Educational Process ◽

Nuclear Industry ◽

Educational Institutions ◽

Industrial Complex ◽

Wide Range ◽

3D Printers ◽

The Creation

In order to determine the features and main ways of using additive technologies within the framework of the scientific and business program of the International Military-Technical Forum Army-2020, a round table was held. In recent years, additive technologies have made a significant leap forward thanks to the improvement of electronic computing technology and software (software), the creation of a wide range of 3D printers that print using various modern methods and materials. The following industries are leading in the development of 3D printing as consumers: aircraft construction (33%), nuclear industry (30%), military-industrial complex (13%), as well as medicine (11%), education, etc. The summary contains part of the speeches of the speakers of the scientific event on the use of additive technologies in education and medicine. To achieve Russias position as one of the leaders in the global technology market, a network of educational institutions is developing and the provision of educational institutions with 3D printers. The countrys universities and, in particular, Bauman Moscow State Technical University began to develop professional competencies among graduates in the field of additive technologies, materials and equipment. Other universities use reverse engineering for research and development, the launch of new production. In medicine, models of complex elements of the human skeleton are created, in particular, individual bones and various projections of the skull, bones of the spine, hand and foot, as well as some models of organs from hard and semi-soft plastics to improve the educational process. The capabilities of 3D printing of mock-ups of organ pathologies are used for preoperative planning and rehearsal of an operation in thoracic and cardiovascular surgery, as well as for training students and doctors, modeling hemodynamics and testing medical devices. Alternative materials and methods for making splints and splints for fixing injuries and diseases of the upper limb are considered. To create ceramic products in dentistry, instead of injection molding and pressing, the technology of Lithography-based Ceramics Manufacturing printing with a suspension on foreign equipment was proposed. Three-dimensional printing has partially filled the need for personal protective equipment against the new coronavirus infection, in particular through the creation of reusable masks, various adapters, holders of face masks, linings on door handles, etc. The participants of the round table agreed that the results of scientific and innovative activities in the field of additive technologies should be tested, implemented and used in the educational process, practical activities, including military medicine (bibl.: 6 refs).

Download Full-text

APPLICATION OF ADDITIVE TECHNOLOGIES IN CONSTRUCTION AND IN THE PRODUCTION OF CERAMIC PRODUCTS

Bulletin of Belgorod State Technological University named after V G Shukhov ◽

10.34031/2071-7318-2020-5-2-134-141 ◽

2020 ◽

pp. 134-141

Author(s):

N. Kirillova ◽

A. Alekseeva ◽

A. Egorova

Keyword(s):

3D Printing ◽

Raw Materials ◽

Three Dimensional ◽

Additive Technologies ◽

High Temperature Strength ◽

Form Complex ◽

Advantages And Disadvantages ◽

Analytical Review ◽

3D Printers ◽

The Republic

Additive technologies that allow creating volume objects of different complexity are becoming popular in different industries. There is an increase in the scale of introduction of 3D printing technologies in the construction industry, including in the production of ceramic products. With the help of modern additive technologies, different models, products and designs are created. They can be complex and can be made from different materials. Experts are wondering what the future holds for additive technologies in construction, as well as in ceramic production, as these technologies can save resources, reduce the time of the technological process and form complex shapes. The article presents an analytical review of the global application of additive technologies in construction, as well as in the manufacture of ceramic products. The advantages and disadvantages, the possibilities of 3D printing are considered. The creation of ceramic three-dimensional products is still a rare area of additive technologies that requires research. The production of ceramic products, superior to other materials in terms of high temperature strength, hardness, chemical and thermal resistance, has a high potential for the use of additive technologies. The types of construction 3D printers and raw materials for them are analyzed. The results of a study of the properties of clay raw materials of the Sannikovsky, Namtsyrsky and Kangalassky deposits of the Republic of Sakha (Yakutia) are presented.

Download Full-text

Using additive technologies to create broadband antennas with fractal geometry

Radioelectronics Nanosystems Information Technologies ◽

10.17725/rensit.2021.13.427 ◽

2021 ◽

Vol 13 (4) ◽

pp. 427-434

Author(s):

Andrey V. Smirnov ◽

◽

Alexander S. Fionov ◽

Ilia A. Gorbachev ◽

Elizaveta S. Shamsutdinova ◽

...

Keyword(s):

3D Printing ◽

Frequency Dependence ◽

Fractal Geometry ◽

Additive Technologies ◽

Copper Coating ◽

Frequency Range ◽

Resonant Frequencies ◽

Printing Technology ◽

Broadband Antennas ◽

3D Printing Technology

The paper presents the results of a study of the frequency dependence of the S11 parameters of antenna samples with fractal geometry, created using 3D printing technology, followed by the deposition of a conductive copper coating by galvanization. It is shown that changing the dimension of the fractal at different iterations, shifting and dividing the resonant frequencies, it is possible to flexibly form the working bands of antennas in any frequency range and any width. The developed designs can be used to create broadband rectennas.

Download Full-text