scholarly journals Additive Manufacturing Technologies: An Overview about 3D Printing Methods and Future Prospects

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-30 ◽  
Author(s):  
Mariano Jiménez ◽  
Luis Romero ◽  
Iris A. Domínguez ◽  
María del Mar Espinosa ◽  
Manuel Domínguez
Keyword(s):  
Additive Manufacturing ◽  
Sustainable Manufacturing ◽  
Academic Field ◽  
Geometrical Complexity ◽  
Production Run ◽  
Professional Field ◽  
Manufacturing Techniques ◽  
Materials Used ◽  
Lower Tool ◽  
Manufacturing Technologies

The use of conventional manufacturing methods is mainly limited by the size of the production run and the geometrical complexity of the component, and as a result we are occasionally forced to use processes and tools that increase the final cost of the element being produced. Additive manufacturing techniques provide major competitive advantages due to the fact that they adapt to the geometrical complexity and customised design of the part to be manufactured. The following may also be achieved according to field of application: lighter weight products, multimaterial products, ergonomic products, efficient short production runs, fewer assembly errors and, therefore, lower associated costs, lower tool investment costs, a combination of different manufacturing processes, an optimised use of materials, and a more sustainable manufacturing process. Additive manufacturing is seen as being one of the major revolutionary industrial processes of the next few years. Additive manufacturing has several alternatives ranging from simple RepRap machines to complex fused metal deposition systems. This paper will expand upon the structural design of the machines, their history, classification, the alternatives existing today, materials used and their characteristics, the technology limitations, and also the prospects that are opening up for different technologies both in the professional field of innovation and the academic field of research. It is important to say that the choice of technology is directly dependent on the particular application being planned: first the application and then the technology.

Additive Manufacturing: The Next Generation of Scapholunate Ligament Reconstruction

2021 ◽  
Author(s):  
Matthew N. Rush ◽  
Christina Salas ◽  
Lorraine Mottishaw ◽  
Damian Fountain ◽  
Deana Mercer
Keyword(s):  
Additive Manufacturing ◽  
Ligament Reconstruction ◽  
Three Dimensional ◽  
Biological Properties ◽  
Bone Interface ◽  
Significant Strength ◽  
Efficient Integration ◽  
Manufacturing Methods ◽  
Manufacturing Techniques ◽  
Manufacturing Technologies

Abstract Background Ligament reconstruction, as a surgical method used to stabilize joints, requires significant strength and tissue anchoring to restore function. Historically, reconstructive materials have been fraught with problems from an inability to withstand normal physiological loads to difficulties in fabricating the complex organization structure of native tissue at the ligament-to-bone interface. In combination, these factors have prevented the successful realization of nonautograft reconstruction. Methods A review of recent improvements in additive manufacturing techniques and biomaterials highlight possible options for ligament replacement. Description of Technique In combination, three dimensional-printing and electrospinning have begun to provide for nonautograft options that can meet the physiological load and architectures of native tissues; however, a combination of manufacturing methods is needed to allow for bone-ligament enthesis. Hybrid biofabrication of bone-ligament tissue scaffolds, through the simultaneous deposition of disparate materials, offer significant advantages over fused manufacturing methods which lack efficient integration between bone and ligament materials. Results In this review, we discuss the important chemical and biological properties of ligament enthesis and describe recent advancements in additive manufacturing to meet mechanical and biological requirements for a successful bone–ligament–bone interface. Conclusions With continued advancement of additive manufacturing technologies and improved biomaterial properties, tissue engineered bone-ligament scaffolds may soon enter the clinical realm.

scholarly journals Mechanical properties comparison of Ti6Al4V produced by different technologies under static load conditions

2019 ◽  
Vol 290 ◽  
pp. 08010
Author(s):  
Karolina Karolewska ◽  
Bogdan Ligaj
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Ti6al4v Alloy ◽  
Direct Metal Laser Sintering ◽  
Static Tests ◽  
Rolling Method ◽  
Manufacturing Techniques ◽  
Materials Used

The most commonly used technology among the additive manufacturing is Direct Metal Laser Sintering (DMLS). This process is based on selective laser sintering (SLS). The method gained its popularity due to the possibility of producing metal parts of any geometry, which would be difficult or impossible to obtain by the use of conventional manufacturing techniques. Materials used in the elements manufacturing process are: titanium alloys (e.g. Ti6Al4V), aluminium alloy AlSi10Mg, etc. Elements printed from Ti6Al4V titanium alloy find their application in many industries. Details produced by additive technology are often used in medicine as skeletal, and dental implants. Another example of the DMLS elements use is the aerospace industry. In this area, the additive manufacturing technology produces, i.a. parts of turbines. In addition to the aerospace and medical industries, DMLS technology is also used in motorsport for exhaust pipes or the gearbox parts. The research objects are samples for static tests. These samples were made of Ti6Al4V alloy by the DMLS method and the rolling method from a drawn rod. The aim of the paper is the mechanical properties comparative analysis of the Ti6Al4V alloy produced by the DMLS method under static loading conditions and microstructure analysis of this material.

scholarly journals Review on Additive Manufacturing of Multi-Material Parts: Progress and Challenges

2021 ◽  
Vol 6 (1) ◽  
pp. 4
Author(s):  
Seymur Hasanov ◽  
Suhas Alkunte ◽  
Mithila Rajeshirke ◽  
Ankit Gupta ◽  
Orkhan Huseynov ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Research And Development ◽  
Manufacturing Processes ◽  
Material Interfaces ◽  
Material Compatibility ◽  
The Future ◽  
Materials Used ◽  
Future Direction ◽  
Manufacturing Technologies ◽  
Functional Components

Additive manufacturing has already been established as a highly versatile manufacturing technique with demonstrated potential to completely transform conventional manufacturing in the future. The objective of this paper is to review the latest progress and challenges associated with the fabrication of multi-material parts using additive manufacturing technologies. Various manufacturing processes and materials used to produce functional components were investigated and summarized. The latest applications of multi-material additive manufacturing (MMAM) in the automotive, aerospace, biomedical and dentistry fields were demonstrated. An investigation on the current challenges was also carried out to predict the future direction of MMAM processes. It was concluded that further research and development is needed in the design of multi-material interfaces, manufacturing processes and the material compatibility of MMAM parts.

Additive manufacturing in the wood-furniture sector

2018 ◽  
Vol 29 (2) ◽  
pp. 350-371 ◽  
Author(s):  
Federica Murmura ◽  
Laura Bravi
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Small Scale ◽  
Computer Assisted ◽  
Scale Production ◽  
Content Type ◽  
Advantages And Disadvantages ◽  
Wood Furniture ◽  
Manufacturing Techniques ◽  
Manufacturing Technologies

Purpose In the world economy there is the emergence of advanced manufacturing technologies that are enabling more cost and resource-efficient small-scale production. Among them, additive manufacturing, commonly known as 3D printing, is leading companies to rethink where and how they conduct their manufacturing activities. The purpose of this paper is to focus in the Italian wood-furniture industry to understand if the companies in this sector are investing in additive manufacturing techniques, to remain competitive in their reference markets. The research also attempts to investigate the potential sustainable benefits and limitations to the implementation of 3D printing in this specific sector, considering the companies that have already implemented this technology. Design/methodology/approach Data were collected using a structured questionnaire survey performed on a sample of 234 Italian companies in this sector; 76 companies claimed to use 3D printing in their production system. The questionnaire was distributed via computer-assisted web interviewing and it consisted of four sections. Findings The research has highlighted how Italian 3D companies have a specific profile; they are companies aimed at innovating through the search for new products and product features, putting design and Made in Italy in the first place. They pay high attention to the image they communicate to the market and are highly oriented to the final customer, and to the satisfaction of its needs. Originality/value The study is attempting to expand a recent and unexplored research line on the possible advantages and disadvantages of the implementation of emerging production technologies such as 3D printing.

Laser Consolidation: A Novel Additive Manufacturing Process for Making Net-Shape Functional Metallic Components for Gas Turbine Applications

2015 ◽  
Author(s):  
Lijue Xue ◽  
Yangsheng Li ◽  
Jianyin Chen ◽  
Shaodong Wang
Keyword(s):  
Additive Manufacturing ◽  
Gas Turbine ◽  
Manufacturing Process ◽  
High Performance ◽  
National Research Council ◽  
Dimensional Accuracy ◽  
Materials Used ◽  
Manufacturing Technologies ◽  
Metallic Parts ◽  
Functional Components

Laser consolidation (LC) is a novel additive manufacturing process being developed by the National Research Council Canada (NRC) at its London facility. LC offers unique capabilities in the production of net-shape functional metallic parts requiring no further post-machining. NRC’s LC technology has achieved dimensional accuracy of up to +/−0.05 mm with a surface finish up to 1 μm Ra (depending on the materials used in the manufacturing process). The LC process differs from other additive manufacturing technologies by its high precision deposition system that can build functional parts or features on top of existing parts using various high performance materials and alloys. In this paper, laser consolidation of various high performance materials (such as Ni-base super alloys and Ti-6Al-4V alloy) will be discussed and the examples will be given on building complex functional components and repairing parts otherwise unrepairable for gas turbine and other applications.

scholarly journals An overview of additive manufacturing technologies for musical wind instruments

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Ajith Damodaran ◽  
M. Sugavaneswaran ◽  
Larry Lessard
Keyword(s):  
Additive Manufacturing ◽  
Processing Parameters ◽  
Design Parameters ◽  
Wind Instruments ◽  
Systematic Review Methodology ◽  
Professional Musicians ◽  
Ancient Music ◽  
Materials Used ◽  
Technical Features ◽  
Manufacturing Technologies

AbstractThis paper aimed to provide a foundation database for understanding the important applications of the different additive manufacturing (AM) technologies for musical wind instruments. A systematic review methodology was adopted in this study. The different AM techniques, materials used, the technical features, and processing parameters uniquely related to wind instruments were discussed. Selected heterogeneous applications demonstrate how AM techniques are being exploited in the innovation, improvement in aesthetics of the existing wind instruments, understanding the ancient music, and personalization with its capability to tune specific instrument design parameters for professional musicians.

scholarly journals Review on Additive Manufacturing of Multi-Material Parts: Progress and Challenges

2021 ◽  
Author(s):  
Seymur Hasanov ◽  
Suhas Alkunte ◽  
Mithila Rajeshirke ◽  
Ankit Gupta ◽  
Orkhan Huseynov ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Research And Development ◽  
Manufacturing Processes ◽  
Material Interfaces ◽  
Material Compatibility ◽  
The Future ◽  
Materials Used ◽  
Future Direction ◽  
Manufacturing Technologies ◽  
Functional Components

Additive manufacturing has already been established as a highly versatile manufacturing technique with demonstrated potential to completely transform conventional manufacturing in the future. The objective of this paper is to review the latest progress and challenges associated with the fabrication of multi-material parts using additive manufacturing technologies. Various manufacturing processes and materials used to produce functional components were investigated and summarized. The latest applications of multi-material additive manufacturing (MMAM) in automotive, aerospace, biomedical and dentistry field were demonstrated. Investigation on the current challenges were also carried out to predict the future direction of MMAM processes. It is concluded that the further research and development needed in the design of multi-material interfaces, manufacturing processes and material compatibility of MMAM parts are necessary.

Application of biomimicry for sustainable functionalization of textiles: review of current status and prospectus

2019 ◽  
Vol 89 (19-20) ◽  
pp. 4282-4294 ◽  
Author(s):  
DU Weerasinghe ◽  
Srimala Perera ◽  
DGK Dissanayake
Keyword(s):  
Additive Manufacturing ◽  
Textile Industry ◽  
High Performance ◽  
Negative Impact ◽  
Sustainable Manufacturing ◽  
Current Status ◽  
Textile Materials ◽  
Functional Textiles ◽  
Structural Applications ◽  
Manufacturing Technologies

With the increasing complexity of human lifestyles, the demand for functionalized or high-performance textile materials has seen a steep rise. However, the methods of producing thereof are still creating a negative impact on the environment. Although biomimicry is a possible means of catering for this demand, most of the emerging biomimetic technologies follow an unsustainable path, accentuated only on transferring functionalities of nature, by using chemical-intensive applications. Nevertheless, biomimicry holds promise in sustainable manufacturing, if toxic chemical usage can be reduced while structural applications are increased. This study reviews the possibilities of existing and futuristic textile technologies that could facilitate conscious biomimicking of functional textiles, rather than intense application of chemicals. A total of 283 research articles were initially obtained and screened to review the possibilities of combining biomimetic technologies with textile manufacturing technologies. Prospects of innovative textile technologies and additive manufacturing on the futuristic possibilities of structural mimicking of biological functionalities into textile materials are discussed comprehensively. Possible construction methods, including additive manufacturing and weaving in the micro/nano scale, are suggested for structural mimicking. It is also recommended to unfold the potential of biomimicry in producing functional textiles in order to alleviate the harmful impact already caused to the environment by the textile industry.

A review of biomaterials scaffold fabrication in additive manufacturing for tissue engineering

2019 ◽  
Vol 34 (6) ◽  
pp. 415-435 ◽  
Author(s):  
Tang Mei Shick ◽  
Aini Zuhra Abdul Kadir ◽  
Nor Hasrul Akhmal Ngadiman ◽  
Azanizawati Ma’aram
Keyword(s):  
Tissue Engineering ◽  
Additive Manufacturing ◽  
Material Properties ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Scaffold Fabrication ◽  
Manufacturing Techniques ◽  
Manufacturing Technologies

The current developments in three-dimensional printing also referred as “additive manufacturing” have transformed the scenarios for modern manufacturing and engineering design processes which show greatest advantages for the fabrication of complex structures such as scaffold for tissue engineering. This review aims to introduce additive manufacturing techniques in tissue engineering, types of biomaterials used in scaffold fabrication, as well as in vitro and in vivo evaluations. Biomaterials and fabrication methods could critically affect the outcomes of scaffold mechanical properties, design architectures, and cell proliferations. In addition, an ideal scaffold aids the efficiency of cell proliferation and allows the movements of cell nutrient inside the human body with their specific material properties. This article provides comprehensive review that covers broad range of all the biomaterial types using various additive manufacturing technologies. The data were extracted from 2008 to 2018 mostly from Google Scholar, ScienceDirect, and Scopus using keywords such as “Additive Manufacturing,” “3D Printing,” “Tissue Engineering,” “Biomaterial” and “Scaffold.” A 10 years research in this area was found to be mostly focused toward obtaining an ideal scaffold by investigating the fabrication strategies, biomaterials compatibility, scaffold design effectiveness through computer-aided design modeling, and optimum printing machine parameters identification. As a conclusion, this ideal scaffold fabrication can be obtained with the combination of different materials that could enhance the material properties which performed well in optimum additive manufacturing condition. Yet, there are still many challenges from the printing methods, bioprinting and cell culturing that needs to be discovered and investigated in the future.

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