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4M-Dissimination

 

Publikationen, Konferenzen und Messen

Preparation of Titanium Metal Matrix Composites using Additive Manufacturing.

Lilla Vály, David Grech, Erich Neubauer, Michael Kitzmantel, Lubos Baca, Nils Stelzer

 

Abstract: In this work we have been using the “4M-System” (Machine for Multi-Material-Manufacturing-Machine) which was developed by RHP Technology for the manufacturing of Titanium Metal Matrix Composites. This equipment allows the Additive Layer Manufacturing (ALM) of large structures and uses a Plasma Transferred Arc (PTA) as a heat source for depositing feedstocks (powder/wire) layer by layer onto a substrate. In our study we have deposited test coupons of Titanium powders with different concentrations of B4C particles to form a Metal Matrix Composite. Various processing parameters such as deposition rate, travel speed of the torch as well as plasma parameters (power/current/gas flow) have been assessed for getting pore- and crack-free samples. After deposition specimens were cut and the cross sections were analysed by optical- and scanning electron microscopy. Furthermore the hardness and tensile strength was tested. Composite Materials resulted in higher strength and Young´s modulus in comparison to the pure matrix. Using the additive layer process it is possible to fabricate on the one hand large structures but it is also possible to realize gradient structures or multi-material concepts.

 

Conference: Symposium Verbundwerkstoffe und Werkstoffverbunde, At Bremen, Juli 2017

Available from: https://www.researchgate.net/publication/312056279_Preparation_of_Titanium_Metal_Matrix_Composites_using_Additive_Manufacturing [accessed Sep 23, 2017].

Challenges for XXL components by powder and wire metal deposition - 4M System

Michael Kitzmantel, Lilla Vály, David Grech, Erich Neubauer, Lubos Baca, Nils Stelzer, Grazyna Mozden

 

Abstract: Whenever thinking about additive manufacturing for metals, it is very often a powder bed combined with a laser or electron beam system, that comes into ones mind. A very promising system for large parts (>1m) is based on shape welding. This study focuses on the use of a plasma transferred arc system combined with powder or/and wire feed for MAM. The technology is quite well known for a range of materials including steels. We investigate in this study the potential for XXL space and aircraft components built up from oxygen sensitive aluminium and titanium alloys, looking into the metallurgy of phase formations, microstructures, inclusions, processing atmospheres and its influences on the material properties of the final 3D part. All of this gains in importance with the in-house build-up of a stable machine for repeatable results which is also discussed in this study.

 

Conference: MAMC 2016, At Linz, November 2016

Available from: https://www.researchgate.net/publication/312056337_Challenges_for_XXL_components_by_powder_and_wire_metal_deposition_-_4M_System [accessed Sep 23, 2017].

RHP-Technology GmbH  2444 Seibersdorf    Forschungszentrum   Machine for Multi-Material Manufacturing

Dieses Projekt wird von der Europäischen Kommission unterstützt: H2020-SMEINST-2-2014 no. 673817