THREE-DIMENSIONAL ELECTROHYDRODYNAMIC PRINTING OF METALLIC OBJECTS
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United States of America Patent
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Issued Date -
Mar 2, 2017
app pub date -
Aug 24, 2016
filing date -
Aug 24, 2015
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Abstract
An additive manufacturing system uses electrohydrodynamic (EHD) printing techniques to form a metallic object based upon a digital model. A metal build material is melted within a reservoir and expelled through an outlet of an expeller in a controlled manner using EHD force to modulate surface tension on a meniscus of the liquid metal at the outlet of the expeller. Concurrently, a positioning robotics system moves the expeller relative to a print bed along a toolpath that forms the solidifying metal droplets into a net shape according to the digital model.
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