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2021, Journal of Advanced Research in Fluid Mechanics and Thermal Sciences
3D printing is an emerging technology to construct complex geometry by adapting layer-by-layer addition technique from a 3-dimensional CAD model. Mass customization, freedom of design, and wastage minimization are the main advantages of Additive Manufacturing (AM) based 3D printing. 3D printing is currently used in many sectors worldwide, such as automotive, aerospace, agriculture, medical, electronics, and other household products. However, the usage of the AM technique is limited in large production sectors due to the limitation of the materials and properties of the produced parts. In this review, the different methods of 3D printing, the materials used in different processes, various fields of applications, and the properties of the different approaches are discussed. Also, the effect of process parameters such as layer thickness, nozzle temperature, platform temperature, printing speed, extruding rate, and layer height in 3d printing was reviewed. This will be helpful for furth...
Materiale Plastice, 2022
In the medical field the additive manufacturing process by fused deposition modeling has gained a great importance given the ability to create complex, organic geometries, in a short time period and the possibility of high customization. By fused deposition process the part is created layer by layer and the resulting part is characterized by high anisotropy, dictated mostly by printing parameters. To alleviate the anisotropy and to study the mechanical behavior of the 3D printed parts thermal processing is used. The materials used as filament is a poly (lactic acid) with copper particles embedded for antibacterial purposes. Samples were 3D printed using a commercial printer, thermally processed and tested in compression. On the failed specimens fracture investigations were performed to understand mechanical behavior during compression. The mechanical characteristics showed improvement and the anisotropy decreased as the processing temperature increased, but the samples became brittl...
Thermal Science
A comparative analysis of thermal properties of semi-crystalline and amorphous polymeric materials was carried out. Samples were produced using 3D printing technology on the SIGNAL-ATMAT printer. The following polymeric materials were used to make the samples: thermoplastic polyurethane elastomer, acrylonitrile-butadiene-styrene copolymer, Laywood, ethylene terephthalate, poly (lactic acid). The materials were tested for their thermal and mechanical properties. The research included the analysis of thermal properties by differential scanning calorimetry of manufactured materials. The tensile strength also was determined.
American Journal of Applied Sciences, 2019
Additive manufacturing (AM) also known as 3D printing is a technology that builds three-dimensional (3-D) solid objects. Customized 3D objects with complex geometries and integrated functional designs can be created using 3D printing. A comprehensive review of AM process with emphasis on recent advances achieved by various researchers and industries is discussed. Summary of each 3D printing technology capabilities, advantages and limitations is provided. This article reviews significant developments of 3D printing applications in different fields such as electronics, medical industry, aerospace, automobile, construction, fashion and food industry.
Analele Universităţii "Dunărea de Jos" din Galaţi, 2019
Additive manufacturing (AM) also known as three dimensional (3D) printing is an important advanced manufacturing method that will change the way machines and consumer good are made. This technology is where the human creativity meets technology. AM allows product to be fabricated from the 3D computer aided design (CAD) model of the part, no matter the complexity, through addition of materials one layer at a time until the building is completed. In this article, the seven classes of AM, the advantages in the additively manufactured products as compared to the existing counterparts are highlighted and some of the research efforts in this technology are presented. Some of the problems and the future research need in this field are also presented.
Industrial adoption of 3D Printing has been increasing gradually from prototyping to manufacturing of low volume customized parts. The need for customized implants like tooth crowns, hearing aids, and orthopedic-replacement parts has made the life sciences industry an early adopter of 3D Printing. Demand for low volume spare parts of vintage cars and older models makes 3D printing very useful in the automotive industry. It is possible to 3D print in a wide range of materials that include thermoplastics, thermoplastic composites, pure metals, metal alloys and ceramics. Right now, 3D printing as an end-use manufacturing technology is still in its infancy. But in the coming decades, and in combination with synthetic biology and nanotechnology, it has the potential to radically transform many design, production and logistics processes. 3D printing encompasses a wide range of additive manufacturing technologies. Each of these builds objects in successive layers that are typically about 0.1 mm thin. In basic terms there are four categories of 3D printers. Firstly we have printers that extrude a molten or otherwise semi-liquid material. Secondly, there are printers that solidify a photo curable resin. Thirdly, there are printers that bind or fuse the granules of a powder. And finally, there are printers that stick together cut sheets of paper, plastic or metal.
Additive manufacturing (AM) technology has been researched and developed for more than 20 years. Rather than removing materials, AM processes make three-dimensional parts directly from CAD models by adding materials layer by layer, offering the beneficial ability to build parts with geometric and material complexities that could not be produced by subtractive manufacturing processes. Through intensive research over the past two decades, significant progress has been made in the development and commercialization of new and innovative AM processes, as well as numerous practical applications in aerospace, automotive, biomedical, energy and other fields. This paper reviews the main processes, materials and applications of the current AM technology and presents future research needs for this technology.
International journal of engineering research and technology, 2017
This is a research paper on 3D printing and the various materials used in 3D printing and their properties which become a notable topic in technological aspects. First, define what is meant by 3D printing and what is significant of 3D printing. We will go into the history of 3D printing and study about the process of 3D printing and what materials used in the manufacture of 3D printed objects and select the best materials among them which are suitable for our 3D printing machine. Also, see the advantages of 3D printing as compared to additive manufacturing. Keywords— 3d-Printing; Pdditive Manufacturing
2018
3D printing or Additive Manufacturing is a class of manufacturing processes for creating three-dimensional objects. In an additive manufacturing process, an object is fabricated by printing multilayers of material successively until the final desired size of an object is obtained. The 3D printing technology can be used for both rapid and functional prototyping as well as small batch production. Stereolithography, Selective Laser Sintering and Fused Deposition Modeling are three common technologies for 3D printing of plastics which employ photosensitive resins or thermoplastic materials as a printing material. Laser and heat are the energy sources in these technologies. In this research, a novel additive manufacturing technology using high intensity ultrasound as the energy source is introduced. Commercial thermally cured resin will be employed as a printing material. For a better understanding of developing a method for 3D printing of this kind of resin, the numerical analysis of th...
International Journal of Applied Pharmaceutics, 2022
3D printing and nanotechnology have been two of the most important tools in the development of personalized medical treatments. More recently, their alliance has developed in an effort to create new, flexible, multidisciplinary, and/or medical and drug-wise products. Therefore, a comprehensive review of scientific studies, including 3D printing and nanomaterials on the development of new pharmaceutical methods and medical applications for the treatment and prevention of diseases, is presented here with the help of secondary research from most recent articles. 3D printing, also known as additive manufacturing, has held the power of building a new class of active nanocomposites. With the ability to print a layer of complex 3D objects by layer, additional production of nanomaterials can be used in new ways to significantly control architectural structures of all sizes. The high efficiency of embedded nanomaterials can further extend the power of nanocomposites to structures such as gradients in thermal conductivity, converted photonic emissions, and increased energy and reduced weight. According to the survey done by annual industry, around 50% of the market of 3d printing in the industrial sectors is credited to created prototypes by means of photopolymers. While, Formlabs, Stratasys, HP, Desktop Metal, Ultimaker, Carbon, EOS, Nanoscribe and Markforged are among the top additive manufacturers. This work is hereby an effort to focus on different techniques, merits and demerits, applications, recent advances, relation with nanotechnology along with future aspects.
International Journal for Research in Applied Science and Engineering Technology (IJRASET), 2021
Now a days 3-Dimensional Printing (3DP) technology is used world widely and it can actually print each and every thing with the desired computer program. In Construction engineering the challenges are like availability of skilled man power, time constraint, cost effectiveness and complicated shapes etc. But with the help of an automated machine, the 3D printing technology, has huge potential to have faster and more accurate construction of complex and more laborious works. This technology can build three-dimensional (3D) objects by connecting layers of materials and can be applied to convert waste and by-products into new materials. The 3DP in concrete construction is increasing thanks to its freedom in geometry, rapidness, formwork-less printing, low waste generation, eco-friendliness, cost-saving nature and safety. This paper attempts to review the digital printing technology introduced in the construction industry and the also highlights the impact on concrete technology. It also discusses about the materials used in 3DP, mix design, various applications and challenges in the construction industry.
2017
In this study applications and potential uses of 3D printing in the plastic thermoforming industry are studied. Additive manufacturing has revolutionized the modern manufacturing process and engineering design process. Thermoforming is widely used in plastic manufacturing industries to produce a range of polymer products such as products in the packaging industry. Thermoforming moulds are mostly produced using conventional mould building technologies and are made of steel. These mould are robust but only suitable for mass production and take some time to fabricate. 3D printing can find use in thermoforming industry in creating moulds this can produce the moulds quickly, economically as well as prototyping of the packaging material. 3D printing allows ease of production of personalised packaging. With 3D printing the structural design of the package could be customised on request. As more sustainable bioplastic filaments are innovated, the adoption of 3D printing in packaging manufacturing may help save the environment. 3D printing works well with Acrylonitrile Butadiene Styrene (ABS) and polypropylene. This paper looks at the different applications of 3D printing in the plastics thermoforming industry and looks at the viability of the use of this technology as well as the advantages in relation to conventional production technologies.
International Journal of Modern Engineering Research, 2016
3D printing is one of the most important technological advancement in Additive manufacturing which has been Implemented and recognized as a part of modern industry as it has many advantages over conventional approach of which one of the most important factor which is time. Generally in Fused Deposition modeling the component is manufactured using the concept of rapid prototyping and Layer by layer deposition of the material which is done by sending the data into the software of the machine using a Stereo lithography (.STL) file format made by using Modeling software (CAD). In today's world of Mechanical Engineering the applications of 3D Printing are very useful for Research and Development of various components ranging from simple structures used in everyday life to complicated Components in aerospace applications, 3D printing Provides many advantages few are Simplicity, Reliability and Precision etc this makes it one of the most widely used for making components which can be used as concept. Components. 3D printing is the most widely used additive manufacturing processes in the current industry not only limited to Engineering. This paper presents an overview of Additive Manufacturing and Various applications of engineering.
Materials, 2024
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Energies, 2022
This study aims at showing the potential of additive manufacturing as a new processing route for designing future insulators in the building sector. Polycarbonate (PC) is studied as a possible candidate for designing these new insulators. This polymer offers several advantages, among them fire resistance and stability of its physical properties at high temperatures. The 3D printing of PC is attempted using fused deposition modelling technology. The printing temperature and infill rate are varied to achieve optimal mechanical and thermal characteristics. The results show that an optimal printing temperature of 280 • C is needed to achieve high tensile performance. In addition, thermal properties including thermal conductivity and effusivity increase with the increase of the infill rate in opposition to the thermal diffusivity decrease.
Energies
Three-dimensional printing, or additive manufacturing, is one of the modern techniques emerging in the construction industry. Three-Dimensional Printed Concrete (3DPC) technology is currently evolving with high demand amongst researchers, and the integration of modular building systems with this technology would provide a sustainable solution to modern construction challenges. This work investigates and develops energy-efficient 3D-printable walls that can be implemented worldwide through energy efficiency and sustainability criteria. Numerical research and experimental investigations, bench tests with software packages, and high-precision modern equipment have been used to investigate the thermal performance of 3DPC envelopes with different types of configurations, arrangements of materials, and types of insulation. The research findings showed that an innovative energy-efficient ventilated 3DPC envelope with a low thermal conductivity coefficient was developed following the climat...
International Journal for Research in Applied Science and Engineering Technology, 2022
Additive manufacturing colloquially known as 3 dimensional printing or 3D printing has evolved to a futuristic state since its emergence around 1987. Industries have imbibe the idea and technology and laid down a low cost production path for the future. Customization and tailored fit products for the customer has made the technology of 3d printing more appreciable for the youth with innovation. The technology allows to build the prototype from a digital CAD file. Engineers and innovators can now successfully visualize and get an idea of how there proposed design looks in reality. Different printing techniques have been innovated since its inception in the market. Application of the manufacturing process has been increasing day by day. In this article we seek to explore the printing material used, the process from designing to prototyping and the various application of additive manufacturing.
In this project, 3D printing which is one of methods of additive manufacturing is examined. Throughout this examination, it is researched the methods, metarials used, performances and scalabili-ties, applications, limitations, and future perspectives of 3D printing. Many schematics are given so as to increase the understanding of processes.
In the world of developing technology, 3d printing has been replaced the entire manufacturing firm/system with its improved version of building parts layer by layer using the additive approach and new trends. In the present article, a comprehensive study has been carried out for comparing it with the traditional manufacturing method for production of components, complex objects for hundreds of different applications. 3D printing technology is an extremely versatile and rapid process, accelerate innovation and reduce energy usage, minimise material and compress supply chains. This paper also describes the feed mechanism and process-related information, supporting material, software used in 3D printer and some recent developments on 3D printing technology.
Polymers
The thermal properties of parts obtained by 3D printing from polymeric materials may be interesting in certain practical situations. One of these thermal properties is the ability of a material to expand as the temperature rises or shrink when the temperature drops. A test experiment device was designed based on the thermal expansion or negative thermal expansion of spiral test samples, made by 3D printing of polymeric materials to investigate the behavior of some polymeric materials in terms of thermal expansion or contraction. A spiral test sample was placed on an aluminum alloy plate in a spiral groove. A finite element modeling highlighted the possibility that areas of the plate and the spiral test sample have different temperatures, which means thermal expansions or contractions have different values in the spiral areas. A global experimental evaluation of four spiral test samples was made by 3D printing four distinct polymeric materials: styrene-butadiene acrylonitrile, polyet...
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