Journal ArticleDOI
Microstructures of laser-deposited Ti–6Al–4V
TLDR
In this article, the effects of processing conditions, such as laser power, scan speed, powder feed rate, etc. on the microstructure of the build have been assessed and it has been found that Ti-6Al-4V is very susceptible to the formation of columnar grains during laser deposition.About:
This article is published in Materials & Design.The article was published on 2004-04-01. It has received 372 citations till now. The article focuses on the topics: Laser power scaling & Microstructure.read more
Citations
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Journal ArticleDOI
Laser additive manufacturing of metallic components: materials, processes and mechanisms
TL;DR: Additive manufacturing implies layer by layer shaping and consolidation of powder feedstock to arbitrary configurations, normally using a computer controlled laser as discussed by the authors, which is based on a novel materials incremental manufacturing philosophy.
Journal ArticleDOI
Additive manufacturing of Ti6Al4V alloy: A review
Shunyu Liu,Yung C. Shin +1 more
TL;DR: In this paper, the recent progress on Ti6Al4V fabricated by three mostly developed additive manufacturing techniques-directed energy deposition (DED), selective laser melting (SLM) and electron beam melting (EBM)-is thoroughly investigated and compared.
Journal ArticleDOI
Metal Additive Manufacturing: A Review of Mechanical Properties
John J. Lewandowski,Mohsen Seifi +1 more
TL;DR: A review of published data on the mechanical properties of additively manufactured metallic materials can be found in this paper, where the additive manufacturing techniques utilized to generate samples covered in this review include powder bed fusion (eBM, SLM, DMLS) and directed energy deposition (eBF3).
Journal ArticleDOI
Anisotropic tensile behavior of Ti-6Al-4V components fabricated with directed energy deposition additive manufacturing
TL;DR: In this article, the authors investigated the anisotropic mechanical properties of a Ti-6Al-4V three-dimensional cruciform component fabricated using a directed energy deposition additive manufacturing (AM) process.
Journal ArticleDOI
An overview of Direct Laser Deposition for additive manufacturing; Part II: Mechanical behavior, process parameter optimization and control
TL;DR: In this paper, the authors provide an overview of the mechanical characteristics and behavior of metallic parts fabricated via direct laser deposition (DLD), while also discussing methods to optimize and control the DLD process.
References
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Journal ArticleDOI
Practical considerations and capabilities for laser assisted direct metal deposition
G.K. Lewis,M. Eric Schlienger +1 more
TL;DR: Directed light fabrication (DLF) and laser engineered net shaping (LENS TM ) processes have been proven feasible for fabricating components from nearly any metal system to near-net shape accuracy with mechanical properties approaching and in some cases exceeding the properties found in conventional processed wrought structures.
Journal ArticleDOI
The effect of laser power and traverse speed on microstructure, porosity, and build height in laser-deposited Ti-6Al-4V
Journal ArticleDOI
Understanding thermal behavior in the LENS process
Michelle L. Griffith,M.E. Schlienger,L.D. Harwell,M.S Oliver,Michael Dean Baldwin,Mark T. Ensz,M Essien,J Brooks,C.V. Robino,John E. Smugeresky,William H. Hofmeister,M. J. Wert,Drew V. Nelson +12 more
TL;DR: In this article, the authors describe the use of contact and imaging techniques to monitor the thermal signature during LENS processing and develop an understanding of solidification behavior, residual stress, and microstructural evolution with respect to thermal behavior.
Laser Engineered Net Shaping (LENS(TM)): A Tool for Direct Fabrication of Metal Parts
C. Atwood,M. Ensz,D. Greene,M. Griffith,L. Harwell,D. Reckaway,T. Romero,E. Schlienger,J. Smugeresky +8 more
TL;DR: The Laser Engineered Net Shaping (LENS~) as mentioned in this paper process is similar to traditional laser-initiated rapid prototyping technologies such as stereolithography and selective laser sintering in that layer additive techniques are used to fabricate physical parts directly from CAD data by using the coordinated delivery of metal particles into a focused laser beam apart.
Proceedings ArticleDOI
Laser engineered net shaping (LENS™): A tool for direct fabrication of metal parts
Clint L. Atwood,Michelle L. Griffith,L.D. Harwell,M. Eric Schlienger,Mark T. Ensz,John E. Smugeresky,Tony Romero,Don Greene,Daryl E. Reckaway +8 more
TL;DR: Sandia National Laboratories developed a process called Laser Engineered Net Shaping (LENS™) to fabricate fully dense metal parts directly from computer-aided design (CAD) solid models as discussed by the authors.