Complex metallic alloys as new materials for additive manufacturing

Kenzari, Samuel; Bonina, David; Dubois, Jean; Fournée, V.

doi:10.1088/1468-6996/15/2/024802

Cited by 24 publications

(17 citation statements)

References 20 publications

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“…A number of complex metallic alloys are now being developed and used for the fabrication of important light-weight structures with impressive properties, using the additive-manufacturing process. 54 Complex metallic alloys are intermetallic compounds with unique thermal and transport properties that cannot be found in any metal system. 55 Complex metallic alloys are needed in a number of applications because of their excellent properties, but they cannot be used with the conventional manufacturing processes because of their brittleness that makes them difficult to process.…”

Section: Materials Development For Additive Manufacturingmentioning

confidence: 99%

“…New composite materials with improved properties are introduced and used in additivemanufacturing processes, with the functional-part production now being commercialized. 54 The traditional manufacturing process presents a lot of challenges when processing these materials because of the segregation of constituent materials due to the thermodynamic properties of individual materials, but additive-manufacturing technologies can be used to process these materials without such problems. 41 A number of new materials with improved properties and performances are now being developed for the additive-manufacturing technologies.…”

Section: Materials Development For Additive Manufacturingmentioning

confidence: 99%

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Additive manufacturing: the future of manufacturing

Adekanye¹,

Mahamood²,

Akinlabi³

et al. 2017

Mater. Tehnol.

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Additive manufacturing is an advanced manufacturing method used to fabricate prototypes, tooling as well as functional products. Additive manufacturing helps us produce complex parts as single-unit objects, which was not possible with the traditional manufacturing methods. There are different types of additive-manufacturing technologies, including selective laser melting, laser-metal-deposition process, fused deposition modeling and electron-beam melting. All these additive-manufacturing technologies produce three-dimensional (3D) objects by adding materials layer after layer. A 3D object is built directly from a 3D computer-aided-design (CAD) model of the object. Additive manufacturing is a very promising method for the aerospace industry, in particular because of its ability to reduce the buy-to-fly ratio. This technology is the technology of the future because it is going to change the way products are designed and manufactured. In this research, various additive-manufacturing technologies are described in detail and some of the research works in this field are also presented. The future research directions are also highlighted. Keywords: additive manufacturing, fused deposition modelling, laser metal deposition, selective laser melting, selective laser sintering Dodajalni proizvodni proces je napredna tehnologija, ki se uporablja za izdelavo prototipov, orodij in funkcionalnih izdelkov. Z naprednim proizvodnim procesom lahko izdelamo izdelke ali dele kompliciranih oblik, ki jih ni mo`no izdelati s tradicionalnimi metodami proizvodnje. Obstajajo razli~ne vrste naprednih dodajalnih tehnologij, kot so na primer: selektivno lasersko nataljevanje, proces laserskega nana{anja (depozicije) kovin, modeliranje z nana{anjem staljenih kapljic in taljenje z elektronskim curkom. Vse te napredne dodajalne tehnologije omogo~ajo izdelavo tridimenzionalnih (3D) izdelkov z dodajanjem materialov plast za plastjo. Tridimenzionalni produkt je izgrajen neposredno s pomo~jo 3D-ra~unalni{ko podprtega modeliranja (angl. CAD). Napredna dodajalna proizvodnja je zelo obetavna proizvodna metoda, predvsem v letalski in vesoljski industriji, {e posebej zaradi sposobnosti zmanj{evanja stro{kov izdelave (zmanj{anje razmerja med maso materiala, potrebnega za izdelavo dolo~enega izdelka in njegovo dejansko maso). Klju~ne besede: dodajalna proizvodnja, modeliranje z nana{anjem staljenih materialov, laserska depozicija kovin, selektivno lasersko nataljevanje, selektivno lasersko sintranje

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Section: Materials Development For Additive Manufacturingmentioning

confidence: 99%

Section: Materials Development For Additive Manufacturingmentioning

confidence: 99%

Additive manufacturing: the future of manufacturing

Adekanye¹,

Mahamood²,

Akinlabi³

et al. 2017

Mater. Tehnol.

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“…Figure 8 shows demonstration parts lattice structures created with netfabb software [25]. As the need for energy conservation grows, the need for light weight manufactured parts grows proportionately [29][30][31][32]. The benefits of weight reduction are in many applications significant.…”

Section: Weight Reductionmentioning

confidence: 99%

Strategic Implications of Current Trends in Additive Manufacturing

Beyer

2014

Journal of Manufacturing Science and Engineering

131

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Additive manufacturing (AM) has become a serious and potential game-changing method o f manufacturing over the years since the first commercial technology fo r "Rapid Proto typing" in 1988. Even though we are advanced, the current accomplishments are still fa r from the level which can be expected in the future. Innovative approaches toward design are required to capture the fu ll potential o f this technology. This paper describes the advantages and possibilities o f AM technologies, and how they can be used in various sectors (e.g., engineering, automotive, aerospace, medical, and consumer products, etc.) as alternative methods fo r manufacturing energy efficient parts with few er raw materials. To take advantage o f the capabilities o f these technologies, new and enhanced design methods and procedures are required. This paper addresses strategic implications o f widespread adoption o f AM. It also reports how engineers need to change their thinking pattern to be able to use the fu ll potential o f the AM technologies. Engineers should be aware o f the capabilities o f the AM technologies and the available material selections tomake the right decisions at the beginning o f a design process. Also reported herein, in addition to building very complex shapes with various material mixtures, are the capabil ities o f fabricating lattice and hollow-core structures. Reduction o f a product's weight is a great option fo r saving energy and cost, particularly fo r the automotive and aerospace sectors. However, it is still important to ensure the part has the necessary strength. The objective o f the current research is to analyze and prove how certain shapes o f cell struc tures influence the strength and flexibility o f parts. Conclusion address the importance o f understanding the strategic implications on AM fo r government officials, educators, researchers, and industrial leaders.

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“…During Laser Additive Manufacturing (LAM) [1][2][3][4], the design and development of powder feeder is the critical technology of LAM equipment. The LAM can be classified as presetting method and synchronous powder feeding method according to the ways of materials supply.…”

Section: Introductionmentioning

confidence: 99%

Flowrate Calibration of Coaxial Powder Feeder During Laser Additive Manufacturing

Zhang¹,

Zhang²,

Jiang³

2017

dtetr

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The fabrication of metal parts is the backbone of the modern manufacturing industry. Laser Additive Manufacturing (LAM) is combination of five common technologies: laser cladding (LC), rapid prototyping (RP), computer-aided design (CAD), computer-aided manufacturing (CAM), and powder metallurgy. The resulting process creates part by focusing an industrial laser beam on the surface of processing work piece to create a molten pool of metal. A small stream of powdered alloy is then injected into the molten pool to build up the part gradually. By moving the laser beam back and forth and tracing out a pattern determined by a CAD, the solid metal part is fabricated line by line, one layer at a time. During LAM, the design and development of powder feeder is the critical technology of LAM equipment. During the synchronous powder feeding method, the machining quality mainly depends on the machining rate, powder feeding rate, laser power density, spot diameter and powder delivery speed. The powder feeding rate and powder delivery speed are determined by the delivery features of powder feeder. In the case of constant outlet pressure of throttling valve of gas bottle, with the increase of rotary speed of powder feeding disk, the pressure at the outlet of powder feeding pipe shows the upward tendency on the whole. The faster the rotary speed, the higher the pressure at the outlet of powder feeding pipe. It can be concluded from the changing rules of powder feeding flowrate at the different outlet pressure of gas bottle and rotary speed of powder feeding disk, in order to better realize the stable control of powder feeding flowrate, the outlet pressure of gas bottle should choose the middle grade. Then, the powder feeding flowrate could be precisely adjusted by controlling the rotary speed of powder feeding disk. 1

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Complex metallic alloys as new materials for additive manufacturing

Cited by 24 publications

References 20 publications

Additive manufacturing: the future of manufacturing

Additive manufacturing: the future of manufacturing

Strategic Implications of Current Trends in Additive Manufacturing

Flowrate Calibration of Coaxial Powder Feeder During Laser Additive Manufacturing

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