Journal ArticleDOI
Microstructural and Mechanical Properties of Selective Laser Melted Al 4047
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TLDR
In this article, a unique Al-Si eutectic microstructure is obtained with Al dendrites growing in the scanning direction, which can be varied by changing the SLM process parameters which can help controlling the process cost depending upon required mechanical properties.Abstract:
Selective laser melting (SLM) has been recognized as a pertinent process for manufacturing of complex geometries. Al 4047 has been manufactured in this study with different processing parameters of the SLM process to obtain the optimal parameters suitable for required applications, as well as to determine the effect of these parameters and post-processing heat treatment on mechanical properties. A unique Al-Si eutectic microstructure is obtained with Al dendrites growing in the scanning direction. Mechanical properties of the SLM manufactured Al 4047 are at par with those of conventionally manufactured alloy. These properties can be varied by changing the SLM process parameters which can help controlling the process cost depending upon required mechanical properties.read more
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Journal ArticleDOI
Additive manufacturing of metallic components – Process, structure and properties
Tarasankar Debroy,Huiliang Wei,J.S. Zuback,T. Mukherjee,John W. Elmer,John O. Milewski,Allison M. Beese,Alexander E. Wilson-Heid,Amitava De,Wei Zhang +9 more
TL;DR: A review of the emerging research on additive manufacturing of metallic materials is provided in this article, which provides a comprehensive overview of the physical processes and the underlying science of metallurgical structure and properties of the deposited parts.
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3D printing of Aluminium alloys: Additive Manufacturing of Aluminium alloys using selective laser melting
Nesma T. Aboulkhair,Marco Simonelli,Luke Parry,Ian Ashcroft,Christopher Tuck,Richard J.M. Hague +5 more
TL;DR: A comprehensive understanding of the interrelation between the various aspects of the subject, as this is essential to demonstrate credibility for industrial needs, is presented in this paper, which highlights some key topics requiring attention for further progression.
Journal ArticleDOI
Influence of process-induced microstructure and imperfections on mechanical properties of AlSi12 processed by selective laser melting
Shafaqat Siddique,Shafaqat Siddique,Muhammad Imran,Eric Wycisk,Claus Emmelmann,Frank Walther +5 more
TL;DR: In this paper, a series of samples of AlSi12 have been manufactured by SLM process to study the effect of process parameters and post-build heat treatment on the microstructure and corresponding mechanical properties.
Journal ArticleDOI
Computed tomography for characterization of fatigue performance of selective laser melted parts
Shafaqat Siddique,Shafaqat Siddique,Muhammad Imran,Miriam Rauer,Michael Kaloudis,Eric Wycisk,Claus Emmelmann,Frank Walther +7 more
Journal ArticleDOI
Very high cycle fatigue and fatigue crack propagation behavior of selective laser melted AlSi12 alloy
TL;DR: In this paper, the influence of base plate heating and post-process stress-relief on part properties like process-incited defects, which are critical for fatigue loading, for AlSi12 alloy was investigated.
References
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Journal ArticleDOI
Additive manufactured AlSi10Mg samples using Selective Laser Melting (SLM): Microstructure, high cycle fatigue, and fracture behavior
TL;DR: In this paper, the microstructure, high cycle fatigue (HCF), and fracture behavior of additive manufactured AlSi10Mg samples are investigated, and the results were analyzed statistically by design of experiments, correlation analysis, and marginal means plots.
Journal ArticleDOI
Laser Additive Manufacturing and Bionics: Redefining Lightweight Design
TL;DR: A novel approach to extreme lightweight design is realized by incorporating structural optimization tools, bionic structures and LAM guidelines into one design process and designers can achieve lightweight savings in designing new aircraft structures.
Journal ArticleDOI
High Cycle Fatigue (HCF) Performance of Ti-6Al-4V Alloy Processed by Selective Laser Melting
TL;DR: In this paper, high cycle fatigue (HCF) tests were performed for as-built, polished and shot-peened samples to investigate the capability of selective laser melting (SLM) for these applications.
Journal ArticleDOI
New Developments of Laser Processing Aluminium Alloys via Additive Manufacturing Technique
TL;DR: In this article, the feasibility of introducing high strength aluminium alloys and custom developed Al powder systems to the Selective Laser Melting (SLM) process was investigated using a low power fiber laser.
Journal ArticleDOI
Structural and mechanical properties of Al-Si alloys obtained by fast cooling of a levitated melt
S. P. Nikanorov,M. P. Volkov,V. N. Gurin,Yu. A. Burenkov,L. I. Derkachenko,B. K. Kardashev,Liya L. Regel,William R. Wilcox +7 more
TL;DR: In this paper, the average temperature coefficient of Young's modulus in the range from room temperature to 500°C and the yield point for bending both had maxima at about 20.5 to 35.% Si.