Speaker
Description
Latest development in multi-material design realised by metal additive layer manufacturing technologies include the integration of sensors & conductors.
Specifically electrical conductors out of metal (e.g. copper) have to be insulated from the metal solid to avoid short circuiting and provide the designed functionality over the lifetime.
The presented investigations involve several different specimen types, which were altogether manufactured in the following way: an atmospheric plasma coating process was used to deposit two stack of layers out of Aluminium oxide onto an aluminium alloy substrate. In-between those stacks of appro. 200µm thickness, several layers of Copper are crated in the same way, again using spherical powder of 10-20µm size. This setup of an insulted Cu track is subsequently embedded by wire+arc additive manufacturing, applying aluminium alloy, resulting in an aluminium body with locally integrated electrical conductor.
Those samples were mechanically tested in static and pulsating load conditions, while measuring the Ohmic resistance in parallel.
All different test scenarios show a remarkable robustness of the conductors in the elastic as well as plastic regime. Results from metallographic and X-ray analysis provide an insight into the macroscopic design of these multi-functional test articles.
An outlook into future applications is exhibiting the exploitation potential, specifically in context of H2020 project MULTI-FUN.
| Speaker Country | Österreich |
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