Speaker
Description
In the Horizon 2020 project MULTI-FUN, the manufacturing of fully integrated multi-functionalities of metal parts is in the main focus. These functionalities include enhanced active/passive heat management embedded fibre-optical sensing as well as integrated electrical conductivity.
Several additive layer manufacturing technologies are under development to generate both the internal functional layers (lines/layers/volumes) as well as the final outer geometry of structural parts or manufacturing tools.
In this paper, the sequential application of several direct energy deposition technologies and different material, respectively, is presented, aiming at a multi-material setup offering electrical conductivity. Aluminium is used as a substrate as well as for the filler wires used for the last step of covering the multi-material design by wire+arc AM.
Between substrate and WAAM layer, a stack of layers providing isolation (by aluminium oxide) and electrical conductivity (by copper) is deposited.
The investigations contain variations in layer design, the presented results include electrical and mechanical properties in as-built as well as mechanically loaded conditions as well as microstructures of materials and their interfaces.
The industrial application of embedded electrical conductors in several demonstrators developed in project MULTI-FUN will be addressed.