Searched for: subject:"selective%5C+laser%5C+melting"
(1 - 20 of 21)

Pages

document
Deshmukh, Kaustubh (author)
Additive Manufacturing (AM), commonly known as 3D printing, exemplifies the recently emerging processing methodologies that aim to substitute the conventional routes, such as to produce parts with complex geometries and eliminate expensive tooling. AM also allows high degree of freedom and rapid prototyping for functional part optimization. This...
master thesis 2020
document
Sahu, Saswat (author)
Functionally graded materials (FGMs) represent a new class of materials that consist of graded compositional and microstructural patterns allowing to tailor properties. Additive manufacturing (AM) or more commonly known as 3D-printing offers a paradigm shift in FGMs and engineering design due to its ability to produce components with complex...
master thesis 2020
document
Zou, Sheng (author), Xiao, Hanbin (author), Ye, Fangping (author), Li, Z. (author), Tang, Wenzhi (author), Zhu, Feng (author), Chen, Chentong (author), Zhu, Chao (author)
The inevitably formed residual stress in the Selective Laser Melting (SLM) process leads to distortion, crack and even delamination of the workpiece. Single laser is commonly applied during SLM processing. However, its productivity is much lower than multiple lasers. In addition, the research of residual stress with multi-laser condition...
journal article 2020
document
Polozov, Igor (author), Kantyukov, Artem (author), Goncharov, Ivan (author), Razumov, Nikolay (author), Silin, Alexey (author), Popovich, V. (author), Zhu, J. (author), Popovich, Anatoly (author)
In this paper, laser powder-bed fusion (L-PBF) additive manufacturing (AM) with a high-temperature inductive platform preheating was used to fabricate intermetallic TiAl-alloy samples. The gas atomized (GA) and mechanically alloyed plasma spheroidized (MAPS) powders of the Ti-48Al-2Cr-2Nb (at. %) alloy were used as the feedstock material. The...
journal article 2020
document
Polozov, Igor (author), Kantyukov, Artem (author), Popovich, V. (author), Zhu, Jia Ning (author), Popovich, Anatoly (author)
Additive Manufacturing (AM) is an attractive way of producing parts of intermetallic titanium alloys. However, high brittleness of these alloys makes it challenging to produce crack-free intermetallic parts by AM. One way to overcome this problem is to use high-temperature powder-bed preheating. In this paper, Ti-48Al-2Cr-2Nb alloy was...
conference paper 2020
document
Borisov, Evgenii (author), Starikov, Kirill (author), Popovich, Anatoly (author), Popovich, V. (author)
The aim of this study was to determine the influence of selective laser melting (SLM) process parameters on the formation of cracks in nickel-based single crystal alloy. Several sets of laser scanning parameters, with varied laser power, scanning speed and hatch distance, thus resulting in different volumetric and linear energy densities,...
conference paper 2020
document
Blok, Adriaan (author)
Selective laser melting (SLM) is an additive manufacturing technique, which is currently on the rise of being used for manufacturing bone implants. Spinal cage, dental and hip implants can for example be manufactured using SLM. Ti6Al4V lattice structures, categorised as metamaterials, can be printed by SLM with mechanical properties close to...
master thesis 2019
document
Li, Y. (author), Lietaert, K. (author), Li, W. (author), Zhang, X.Y. (author), Leeflang, M.A. (author), Zhou, J. (author), Zadpoor, A.A. (author)
The corrosion fatigue behavior of additively manufactured topologically ordered porous iron based on diamond unit cells was studied for the first time to understand its response to cyclic loading in a simulated physiological environment. The material exhibited high fatigue resistance with fatigue strengths being 70% and 65% of yield stress in...
journal article 2019
document
Rans, C.D. (author), Michielssen, J. (author), Walker, M.S. (author), Wang, W. (author), Hoen-Velterop, Ludmila ’t (author)
A challenge in developing an in-depth understanding of the crack growth resistance of Additively Manufactured materials is the fact that their mechanical properties have been shown to be both process and part-geometry dependent. Up to now, no studies have investigated the influence of off-axis (beyond the three orthogonal build orientations)...
journal article 2018
document
Ahmadi, S.M. (author)
One of the main functions of bone is to support the human body mechanically. To fulfil its complex role, bone possesses unique mechanical properties: it is stiff enough to resist deformation while being able to absorb energy.<br/>In this thesis, a comprehensive study has been carried out using analytical methods, numerical methods and...
doctoral thesis 2018
document
Zamariola, Nicolo (author)
The recent possibilities given by additive manufacturing in free shape design have been seen as a<br/>potential breakthrough in the design and production of structural components of a racecar and more<br/>generally their influences on the future lightweight strategies in the automotive industry is expected<br/>to influence the next generation of...
master thesis 2018
document
Zhang, Xiang Yu (author), Fang, Gang (author), Xing, Lei Lei (author), Liu, Wei (author), Zhou, J. (author)
Functionally graded scaffold (FGS) is designed to mimic the morphology, mechanical and biological properties of natural bone closely. Porosity variation strategy between different regions in FGS plays a crucial role in influencing its mechanical and biological performance. A combination of modeling tool and scripting language can effectively...
journal article 2018
document
Ashok Kumar Jain, Rimit Kumar (author)
Selective laser melting (SLM) is a novel technique being increasingly used for the production of porous structures with a high degree of precision and near net shape. These porous materials are finding their use in the biomedical industry for implants. In this thesis, the effect of post-processing using hot isostatic pressing (HIP) and surface...
master thesis 2017
document
Moreels, Simon (author)
In order to produce more complex parts, additive manufacturing is on the rise as a competitor for more conventional manufacturing methods. Unfortunately, additive manufacturing often produces products with a less desirable tolerance and surface roughness. Subtractive methods require special tooling and fixtures for each part design and typically...
master thesis 2017
document
Bobbert, F.S.L. (author), Lietaert, K. (author), Eftekhari, A.A. (author), Pouran, B. (author), Ahmadi, S.M. (author), Weinans, H.H. (author), Zadpoor, A.A. (author)
Porous biomaterials that simultaneously mimic the topological, mechanical, and mass transport properties of bone are in great demand but are rarely found in the literature. In this study, we rationally designed and additively manufactured (AM) porous metallic biomaterials based on four different types of triply periodic minimal surfaces (TPMS)...
journal article 2017
document
Ye, Xiaotong (author), Leeflang, M.A. (author), Wu, Chengtie (author), Chang, Jiang (author), Zhou, J. (author), Huan, Z. (author)
Porous Ti-6Al-4V scaffolds fabricated by means of selective laser melting (SLM),<br/>having controllable geometrical features and preferable mechanical properties, have been developed as a class of biomaterials that hold promising potential for bone repair. However, the inherent bio-inertness of the Ti-6Al-4V alloy as the matrix of the scaffolds...
journal article 2017
document
Dermenakis, S. (author)
A heat switch is a variable thermal conductance device that can act as a thermal conductor or a thermal insulator. A gas-gap heat switch, which is currently in its third design iteration, has been developed by University of Twente in collaboration with the European Space Agency. This device is filled with a gas, whose thermal conductivity varies...
master thesis 2016
document
Vermeulen, F. (author)
Selective Laser Melting (SLM) is an Additive Manufacturing (AM) technique that uses a laser to selectively melt metallic powder in a layer-wise manner, in order to produce functional metal components. It offers great freedom in design and facilitates fast iterations, with the potential of speeding up development phases throughout a wide range of...
master thesis 2016
document
Knol, M.F. (author)
Selective Laser Melting (SLM) is a 3D-printing method to produce metal parts. In SLM a part is manufactured layer-by-layer by selectively melting a metal powder with a laser. Although SLM is a promising process for the production of high-quality parts, the implementation in high-tech industry is held back by a few barriers. One of the main...
master thesis 2016
document
Ahmadi, S.M. (author), Yavari, S.A. (author), Wauthle, R. (author), Pouran, B. (author), Schrooten, J. (author), Weinans, H. (author), Zadpoor, A.A. (author)
It is known that the mechanical properties of bone-mimicking porous biomaterials are a function of the morphological properties of the porous structure, including the configuration and size of the repeating unit cell from which they are made. However, the literature on this topic is limited, primarily because of the challenge in fabricating...
journal article 2015
Searched for: subject:"selective%5C+laser%5C+melting"
(1 - 20 of 21)

Pages