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About this Abstract
Meeting 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Symposium 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Presentation Title Droplet Solidification in Molten Metal Jetting with Copper Materials
Author(s) Vivian Wagner, Maximilian Ploetz, Christoph Weidner, Wolfram Volk, Benedikt Kirchebner
On-Site Speaker (Planned) Vivian Wagner
Abstract Scope Local tailoring of mechanical or electrical part properties is essential for many technical applications, such as plug connectors in the electronics industry. Multi-material Molten Metal Jetting (MMJ), an additive manufacturing technology, offers a promising strategy to meet these requirements. In MMJ, components are produced by depositing molten metal droplets onto a substrate, making the impact and solidification behavior of each droplet crucial for the final part quality. This study investigates the impingement and solidification behavior of single droplets from various copper-based materials intended for subsequent combined processing in multi-material MMJ. The results show that the droplet oscillation time is governed by droplet size and build platform temperature. Additionally, the final droplet geometry is strongly material-dependent and significantly influenced by the combination of substrate material and build platform temperature. The findings support the definition of process parameters that enable targeted control of droplet solidification and, consequently, component quality in multi-material MMJ.
Proceedings Inclusion? Undecided

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