Manufacture and Material Characteristics of Titanium Alloy Thrusters for Attitude Control Using Electron Beam Additive Manufacturing

Synchrotron X-ray tomography has been applied to the study of titanium parts fabricated by additive manufacturing (AM). The AM method employed here was the Arcam EBM®(electron beam melting) process which uses powdered titanium alloy, Ti64 (Ti alloy with approximately 6%Al and 4%V), as the feed and an electron beam for the sintering/welding. The experiment was conducted on the Imaging and Medical Beamline of the Australian Synchrotron. Samples were chosen to examine the effect of build direction and complexity of design on the surface morphology and final dimensions of the piece.

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Research on Forming Technology of Electron Beam Selective Melting for Ti-6Al-4V Powder

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.44-47.2778 ◽

2010 ◽

Vol 44-47 ◽

pp. 2778-2782

Author(s):

Hai Bo Qi ◽

De Liang Ren ◽

Ming Jun Zheng

Keyword(s):

Tensile Strength ◽

Titanium Alloy ◽

Electron Beam ◽

Ultimate Tensile Strength ◽

Tensile Properties ◽

Fracture Elongation ◽

Forming Technology ◽

Material Characteristics ◽

Electron Beam Selective Melting

Electron beam selective melting (EBSM) has many advantages for the titanium alloy parts manufactured, therefore, the material characteristics, scanning methods and the tensile properties of Ti-6Al-4V by EBSM are studied in this paper. Aimed at the lower density, poorer electric and heat conductibility of Ti-6Al-4V, three scanning paths have been developed: reverse scanning, interlaced reverse and orthogonal scanning, and the surface of forming part made by the above three scanning methods is smooth and no bulge. The tensile specimens of Ti-6Al-4V are produced by EBSM, the average of ultimate tensile strength and the fracture elongation of the specimen are 1080MPa and 10.10%, respectively.

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Use of an Abrasive Water Cavitating Jet and Peening Process to Improve the Fatigue Strength of Titanium Alloy 6Al-4V Manufactured by the Electron Beam Powder Bed Melting (EBPB) Additive Manufacturing Method

JOM ◽

10.1007/s11837-019-03673-8 ◽

2019 ◽

Vol 71 (12) ◽

pp. 4311-4318 ◽

Cited By ~ 8

Author(s):

Hitoshi Soyama ◽

Daniel Sanders

Keyword(s):

Titanium Alloy ◽

Electron Beam ◽

Additive Manufacturing ◽

Fatigue Strength ◽

Powder Bed ◽

Manufacturing Method ◽

Cavitating Jet

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Electrochemical Surface Finishing of Additively Manufactured Parts

10.1149/osf.io/s35nx ◽

2018 ◽

Author(s):

Holly Garich ◽

Tim Hall ◽

Jennings E. Taylor ◽

Danny Lui ◽

John Porter ◽

...

Keyword(s):

Titanium Alloy ◽

Electron Beam ◽

Additive Manufacturing ◽

Surface Finish ◽

Material Removal ◽

Surface Finishing ◽

Metallic Materials ◽

Powder Bed ◽

Am Processes ◽

Complex Components

Additive manufacturing (AM) processes have the potential to revolutionize the art of manufacturing complex components, essentially enabling a build to print scenario where the designer has unlimited bounds. However, when printing fine featured metallic materials using powder bed (pb) approaches the surface left by the AM process are usually rough with adherent particles (20 to 75 µm in diameter) covering the entirety of the surface. This work discusses an electrochemical surface finishing approach for the titanium alloy Ti64 prepared by an electron beam pb-AM process. The goal of this work is to achieve the desired surface finish while minimizing material removal.

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Assessment of the Run-Out of an Intervertebral Cervical Cage Fabricated by Additive Manufacturing Using Electron Beam Melting

10.1115/detc2021-70241 ◽

2021 ◽

Author(s):

Filippo Cucinotta ◽

Rosalia Mineo ◽

Marcello Raffaele ◽

Fabio Salmeri

Keyword(s):

Titanium Alloy ◽

Electron Beam ◽

Additive Manufacturing ◽

Electron Beam Melting ◽

Degrees Of Freedom ◽

Experimental Tests ◽

Lattice Structures ◽

Critical Issues ◽

Time Savings ◽

Good Agreement

Abstract Lattice structures made by means of Additive Manufacturing are more and more used in several fields of application. In particular, reticular Titanium alloy bodies are used in biomechanics as fusion devices, due to their biocompatibility and lightweight characteristics. Although these structures have been extensively investigated, it is currently not possible to predict their behavior easily. Indeed, due to the high number of degrees of freedom of the lattice structures, it is usually required to conduct extensive experimental campaigns in order to anticipate the mechanical behavior of complex components. The present study proposes a method to predict the run-out in an intervertebral cervical cage based on experimental tests conducted on a similar cage and using Finite Element simulations. The cages were made of Ti-6Al-4V ELI by means of Electron Beam Melting. The experimental tests were carried out in accordance with the appropriate ASTM standards. The numerical simulations were consistent with the experimental results and showed a very good agreement. This methodology helped to identify the most critical issues and to verify a new cage without a second test campaign, which allows both cost and time savings.

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