Sirris contributes to better understanding in alloys behaviour during manufacturing

In the context of the ENABLE project Sirris will provide a platform to develop and understand the thermo-physical behaviour of the materials observed during selective laser melting.

The ENABLE (European Network for Alloys Behaviour Law Enhancement) is a joint project, led by the Université de Bordeaux, with the participation of 5 universities and 12 companies/research centres and funded by the H2020 programme as an ‘Marie Skłodowska-Curie ITN action’. It will grant a better insight into manufacturing processes by cross-linking the experimental and modelling paths for better understanding the phenomena observed during various manufacturing processes such as additive manufacturing, friction stir welding etc. As to solve and meet the industrial needs, ENABLE brings the educational institutions and other industrial partners on the same platform.

Sirris, being a leading research institute in the field of additive manufacturing, will train and support a platform for the ESR9 to develop and understand the thermo-physical behaviour of the materials observed during selective laser melting. It will enable them to link the possible defects observed during the process to the in-situ monitoring techniques, such as a melt pool monitoring system, laser power monitoring system and layer control system, for an easy detection of process anomalies and to improve the quality assurance of the final product. Moreover, a better in-depth insight of the complex phenomenon occurring in the melt pool due to rapid cooling and heating, which eventually leads to residual stresses in the part, is needed and this is possible through thermo-mechanical testing and kinematic analysis.

The experimental results obtained at Sirris will be compared and will provide a basis for numerical modelling of the selective laser melting process. A good comparison between the modelling and experimental results will not only improve the quality, but will also lead to time-saving for quality assurance.

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