Speaker
Description
The continued adoption of metal additive manufacturing (AM) techniques poses unique challenges to the producer, as well as the end user of powders.
From the manufacturing point of view, the dispersion jets used in the production need a precise measure of viscosity in order to achieve a homogeneous and spherical stock. Here we will show the influence different alloys have on the viscosity of the melt. Therefor two aluminum alloys commonly used in AM are characterized using high temperature rheometry.
Powder storage and especially the influence of moisture is of growing concern and interest. We illustrate this by showing the change of the bulk solid flow parameters of powders of the same alloys under the prolonged influence of different moisture levels.
Finally, we investigate the high temperature behavior of additively manufactured sample bodies of the same alloys using Dynamic Mechanical Analysis (DMA) and contrast them with samples cut from cast or forged stock.
This way we aim to give an impression on both the challenges as well as the capabilities of a varied measurement approach targeting parameters encountered all through the manufacturing chain.
| Speaker Country | Austria |
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