Simple sensor manufacturing by Laser Powder Bed Fusion of conductive polymer blends

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Abstract

The efficacy of manufacturing conductive plastic components by the Material Extrusion (MEX) method has been shown previously by Grønborg et al. [1]. To increase the effectiveness of additive manufacturing of these sensors a study utilising Polymer Laser Powder Bed Fusion (L-PBF) technique has been undertaken. The study investigates; the conductive networks created during manufacturing and the influence of processing parameters on the conductivity of the parts. The test specimen has been manufactured on the Open Architecture Polymer L-PBF system developed at the Technical University of Denmark. Utilising the capability of full-scale process control, and the implemented high-power fiber laser to achieve consolidation of the powder. The feedstock material has been designed to allow high energy absorption at the fiber laser wavelength (1080 nm), and thermal properties to comply with the L-PBF process. A conductive network manufactured by the Polymer L-PBF process is demonstrated. The parts produced have been tested by measuring the material's conductivity at the initial unaltered state, and further investigated by SEM micrographs to conclude on the stability of the manufactured parts.

Original languageEnglish
Title of host publicationEuropean Society for Precision Engineering and Nanotechnology, Conference Proceedings : 23rd International Conference and Exhibition, EUSPEN 2023
EditorsO. Riemer, C. Nisbet, D. Phillips
Publishereuspen
Publication date2023
Pages123-126
ISBN (Electronic)978-199899913-2
Publication statusPublished - 2023
Event23rd International Conference of the European Society for Precision Engineering and Nanotechnology - Copenhagen, Denmark, Copenhagen, Denmark
Duration: 12 Jun 202316 Jun 2023

Conference

Conference23rd International Conference of the European Society for Precision Engineering and Nanotechnology
LocationCopenhagen, Denmark
Country/TerritoryDenmark
CityCopenhagen
Period12/06/202316/06/2023

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