MATEC Web Conf.
Volume 321, 2020The 14th World Conference on Titanium (Ti 2019)
|Number of page(s)||7|
|Section||Additive and Near Net Shape Manufacturing|
|Published online||12 October 2020|
Impact of process parameters and heat treatment on mechanical properties of Ti64 LBM
ArianeGroup Vernon, Foret de Vernon, 27200 Vernon
Titanium is a very useful material for aerospace part manufacturing due to its mechanical properties and its lightness. Additive layer manufacturing (ALM), and amongst it Laser Beam Melting (LBM), is a new tool to manufacture parts that have a certain degree of complexity. It allows for the reducing of lead time, as well as reduces the development cycle. The aerospace industry is using more and more this tool to manufacture parts, either for development or for production.
With that in mind, Ti64 was developed in Vernon in order to manufacture parts for the Ariane propulsion engines. Certain parameters have been modified from the standard EOS set of parameters in order to gain in elongation at cryogenic temperatures. Also, a special work was performed in order to define the best heat treatment for Ariane’s applications. The main parameters adjusted were linked to the baseplate temperature during building, as well as the use of HIP. The gain was not only on elongation, but also on porosity rate and mechanical properties (tensile, fatigue) at cryogenic temperatures. Other parameters are being studied today in order to increase productivity.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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