Livermore

Prevent defects in metal 3D-printed parts

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Prevent defects in metal 3D-printed parts. Using this technology could have been benefited to build high rise buildings in San Francisco California.

According to Lawrence Livermore National Laboratory (LLNL) researchers, “High-speed images of a common laser-based metal 3D printing process, coupled with newly updated computer models, have revealed the mechanisms behind material redistribution, a phenomenon that leads to defects in printed metal parts”.

https://www.llnl.gov/news/lab-report

 

https://www.llnl.gov/news/llnl-explores-machine-learning-prevent-defects-metal-3d-printed-parts-real-time

 

 

Hierarchical 3-D Printing of Nano porous Gold

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According to Chris Spadaccini the director of LLNL’s Center for Engineered Materials and Manufacturing, “There are a whole lot of scientific and engineering challenges left, but it could have the significant impact, scaling up should be easier with small-scale reactors because you can parallelize. You could have an array of small 3-D reactors together instead of one large vessel enabling you to control the chemical reaction process more effectively. The Monolithic nanoporous metals, derived from dealloying, have a unique bicontinuous solid/void structure that provides both large surface area and high electrical conductivity, making them ideal candidates for various energy applications”.

 

https://www.ecnmag.com/news/2018/09/hierarchical-3-d-printing-nanoporous-gold-could-revolutionize-electrochemical-reactor-design

https://www.llnl.gov/news/lab