Lindbüchl M, Drummer D (2024)
Publication Type: Conference contribution
Publication year: 2024
Publisher: American Institute of Physics
Book Volume: 3158
Conference Proceedings Title: AIP Conference Proceedings
Event location: St. Gallen, CHE
DOI: 10.1063/5.0207104
Additive manufacturing processes offer significant advantages over conventional processes. In particular, there are fewer limits to the design freedom of additive manufacturing processes. In contrast additive manufacturing processes also have disadvantages that must be taken into account. For example, highly filled material systems cannot be processed in additive manufacturing, especially in powder bed-based processes such as selective laser sintering. However, it has already been shown that manufacturing with low-filled material systems can succeed. So far, the main goal has been functionalization with a view to improving mechanical properties on a global scale. In this study, the functionalization possibility with regard to the generation of locally electrically conductive paths by means of an x-y positioning system is to be investigated. In addition to various material systems, copper and solder powders will be used for this purpose. The copper powder is mixed volumetrically with the polyamide 12 powder (PA12) used in the process before discharge to ensure process capability, while the solder powder is used unmixed. The powders are then fed into the nozzle intended for discharge. In order to investigate the influence of the track width on the electrical conductivity, the process parameters of the x-y positioning system are also varied. This allows for an active influence to be exerted on the track geometry in terms of its width. The adjustable parameters include above all the traversing speed, the adjustable height between the powder bed and the nozzle, and the frequency and amplitude of the piezo element. The deposited tracks, which are processed into individual layers in selective laser sintering, are examined by means of microscopy for geometric and morphological formation as well as the connection of the track to the individual layer. The morphological and light microscopic analysis is followed by the examination of the electrical conductivity.
APA:
Lindbüchl, M., & Drummer, D. (2024). Local integration of electrically conductive paths using an in situ x-y positioning system in selective laser sintering. In Edith Perret (Eds.), AIP Conference Proceedings. St. Gallen, CHE: American Institute of Physics.
MLA:
Lindbüchl, Matthias, and Dietmar Drummer. "Local integration of electrically conductive paths using an in situ x-y positioning system in selective laser sintering." Proceedings of the 38th International Conference of the Polymer Processing Society, PPS 2023, St. Gallen, CHE Ed. Edith Perret, American Institute of Physics, 2024.
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