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Materials 2016, 9(12), 974; doi:10.3390/ma9120974

An Investigation of Sintering Parameters on Titanium Powder for Electron Beam Melting Processing Optimization

Fluid Technology and Microfluidics, University of Rostock, Justus-von-Liebig Weg 6, 18059 Rostock, Germany
Author to whom correspondence should be addressed.
Academic Editor: Jai-Sung Lee
Received: 13 September 2016 / Revised: 20 October 2016 / Accepted: 4 November 2016 / Published: 1 December 2016
(This article belongs to the Section Manufacturing Processes and Systems)
View Full-Text   |   Download PDF [3111 KB, uploaded 1 December 2016]   |  


Selective electron beam melting (SEBM) is a relatively new additive manufacturing technology for metallic materials. Specific to this technology is the sintering of the metal powder prior to the melting process. The sintering process has disadvantages for post-processing. The post-processing of parts produced by SEBM typically involves the removal of semi-sintered powder through the use of a powder blasting system. Furthermore, the sintering of large areas before melting decreases productivity. Current investigations are aimed at improving the sintering process in order to achieve better productivity, geometric accuracy, and resolution. In this study, the focus lies on the modification of the sintering process. In order to investigate and improve the sintering process, highly porous titanium test specimens with various scan speeds were built. The aim of this study was to decrease build time with comparable mechanical properties of the components and to remove the residual powder more easily after a build. By only sintering the area in which the melt pool for the components is created, an average productivity improvement of approx. 20% was achieved. Tensile tests were carried out, and the measured mechanical properties show comparatively or slightly improved values compared with the reference. View Full-Text
Keywords: additive manufacturing; electron beam melting; sintering; efficiency; powder removal additive manufacturing; electron beam melting; sintering; efficiency; powder removal

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Drescher, P.; Sarhan, M.; Seitz, H. An Investigation of Sintering Parameters on Titanium Powder for Electron Beam Melting Processing Optimization. Materials 2016, 9, 974.

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