Additive Manufacturing of Metals

Milewski, J.

doi:10.1007/978-3-319-58205-4

Cited by 143 publications

(68 citation statements)

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“…AM is already widely adopted as a rapid prototyping technology and is gradually gaining more impact on rapid manufacturing of net-shape or near-net-shape components. Following the observations of Milewski (2017), this trend predominantly occurs in the sensitive aviation and automotive industries, as well as medical applications. The indisputable advantages, which can be uncovered by the use of AM in prototyping and production, are emphasized throughout the scientific literature (e.g., Gibson (2015) and Milewski (2017)), but also in books and magazines for casual application and consumers (e.g., Deloitte (2017)).…”

Section: Introductionmentioning

confidence: 77%

“…Following the observations of Milewski (2017), this trend predominantly occurs in the sensitive aviation and automotive industries, as well as medical applications. The indisputable advantages, which can be uncovered by the use of AM in prototyping and production, are emphasized throughout the scientific literature (e.g., Gibson (2015) and Milewski (2017)), but also in books and magazines for casual application and consumers (e.g., Deloitte (2017)). Coming along with these multi-facetted enablers, various new challenges arise from different implications.…”

Section: Introductionmentioning

confidence: 77%

“…According to the ASTM standards (ISO/ASTM, 2015), AM processes are divided into seven categories, which classify the processes, for example, according to the type of feedstock material and tool principle, as highlighted by Milewski (2017). The widespread spectrum allows for the determination of suitable processes (e.g., by assessing specific degrees of feature detail or processing speed) and materials (e.g., based on future application and economic boundary conditions) in both rapid prototyping and rapid manufacturing.…”

Section: Laser-based Additive Manufacturing Technologiesmentioning

confidence: 99%

See 2 more Smart Citations

Hybrid Additive Manufacturing - Requirements Engineering Framework for Process Chain Considerations

Schneberger

Häfele²,

Kaspar

et al. 2019

Proc. Int. Conf. Eng. Des.

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Additive Manufacturing (AM) provides significant opportunities for design and functional integration of parts and assemblies. Compared to conventional processes, the AM principle increases design freedom notably. Additionally, numerous processible materials and hybrid processes enable the implementation in different industries, spanning from aerospace over automobile until medical applications.However, there are still handicaps to be addressed, arising from the large diversity of AM principles, post-processing and quality assurance issues, partly insufficient user knowledge, and organizational aspects. Coherently, lacking requirements specification hinders a successful consideration of AM in the early stages of development, and its later implementation.To promote knowledge build-up, this contribution presents a requirements specification framework, which supports developers in determining demands throughout the development process, including those resulting from post-processing and testing operations. By incorporating thorough analyses of general organizational and resort overarching limitations, this contribution promotes a successful implementation of suitable AM strategies.

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Section: Introductionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 77%

Section: Laser-based Additive Manufacturing Technologiesmentioning

confidence: 99%

See 1 more Smart Citation

Hybrid Additive Manufacturing - Requirements Engineering Framework for Process Chain Considerations

Schneberger

Häfele²,

Kaspar

et al. 2019

Proc. Int. Conf. Eng. Des.

View full text Add to dashboard Cite

show abstract

“…The metal additive technologies are extremely attractive, being able to produce structural components, made of the typical metal alloys used in industrial applications. There is a large number of AM methods for metal [1], and such methods can be categorized largely into two groups [2]: Directed Energy Deposition and Powder Bed Fusion. The former is characterized by large process complexity and requires a careful design of the part in order to obtain complex shapes with satisfactory accuracy, thus putting the Directed Energy Deposition at a great disadvantage with respect to powder bed methods.…”

Section: Introductionmentioning

confidence: 99%

Effect of Industrial Heat Treatment and Barrel Finishing on the Mechanical Performance of Ti6Al4V Processed by Selective Laser Melting

et al. 2020

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Additive manufacturing is now capable of delivering high-quality, complex-shaped metallic components. The titanium alloy Ti6Al4V is an example of a printable metal being broadly used for advanced structural applications. A sound characterization of static mechanical properties of additively manufactured material is crucial for its proper application, and here specifically for Ti6Al4V. This includes a complete understanding of the influence of postprocess treatment on the material behavior, which has not been reached yet. In the present paper, the postprocess effects of surface finish and heat treatment on the mechanical performance of Ti6Al4V after selective laser melting were investigated. Some samples were subjected to barrel finishing at two different intensities, while different sets of specimens underwent several thermal cycles. As a reference, a control group of specimens was included, which did not undergo any postprocessing. The treatments were selected to be effective and easy to perform, being suitable for real industrial applications. Tensile tests were performed on all the samples, to obtain yield stress, ultimate tensile strength and elongation at fracture. The area reduction of the barrel-finished samples, after being tested, was measured by using a 3D scanner, as a further indication of ductility. Experimental results are reported and discussed, highlighting the effect of postprocessing treatments on the mechanical response. We then propose the optimal postprocessing procedure to enhance ductility without compromising strength, for structures manufactured from Ti6Al4V with selective laser melting.

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“…PBF technique allows printing parts with low porosity and high accuracy. This technology is being implemented into industrial production lines [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Structure control of 316L stainless steel through an additive manufacturing

et al. 2019

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The 3D printing process is a recent technique, which allows one to produce parts of complex geometry. The influence of printing parameters on the mechanical and structural properties of many materials has been extensively studied. However, despite the considerable amount of research, the task of comparing the results of different scientific groups is complicated. Each research group performs the investigation with different printing conditions. A lot of works contain not full information about the printing process parameters which were applied. This paper presents the results on the mechanical and structural properties of 316L stainless steel according to variable printing parameters, such as laser density energy, scan strategy, and build direction at other fixed conditions. The results reveal a parabolic dependency between the mechanical properties and the laser density energy. The laser density energy of 161 J/mm 3 leads to the best mechanical characteristics (yield strength of 530 MPa, ultimate strength of 580 MPa, and ductility of 63.2%). Scan strategy does not influence the mechanical properties of the samples printed in the vertical direction. At the same time, the strong scan strategy effect is observed for the samples printed in horizontal direction. The difference in the ultimate strength between the vertically and horizontally printed samples reaches up to 70 MPa.

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Additive Manufacturing of Metals

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Cited by 143 publications

References 0 publications

Hybrid Additive Manufacturing - Requirements Engineering Framework for Process Chain Considerations

Hybrid Additive Manufacturing - Requirements Engineering Framework for Process Chain Considerations

Effect of Industrial Heat Treatment and Barrel Finishing on the Mechanical Performance of Ti6Al4V Processed by Selective Laser Melting

Structure control of 316L stainless steel through an additive manufacturing

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