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Lab study of droplet dynamics advances 3D printing

Lab study of droplet dynamics advances 3D printing

Written by Paul

December 12, 2020

A comparison between the experimentally observed ejected droplet shape at break-up (a) and the simulated droplet shape (b) at various operating conditions approaching the experimental conditions. The simulated droplet shape significantly differs from experiments, highlighting the fact that essential physics appear to be missing from the model.

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A team of Lawrence Livermore National Laboratory (LLNL) scientists has simulated the droplet ejection process in an emerging metal 3D printing technique called “Liquid Metal Jetting” (LMJ), a critical aspect to the continued advancement of liquid metal printing technologies.

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In the paper, the team describes the simulating of metal droplets during LMJ, a novel process in which molten droplets of liquid metal are jetted from a nozzle to 3D print a part in layers. The process does not require lasers or metal powder and is more similar to inkjet printing techniques. Using the model, researchers studied the […]

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