The novel approach developed by LLNL researchers is to use an electric field as the non-contact-based powder remover. The main components of the remover are an electrode and a dielectric layer. As the remover moves across the stage, a high voltage is applied to the electrode that forms an electric field between the electrode and the powder bed. Under the influence of the electric field, the…
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LLNL researchers have designed and tested performance characteristics for a multichannel pyrometer that works in the NIR from 1200 to 2000 nm. A single datapoint without averaging can be acquired in 14 microseconds (sampling rate of 70,000/s). In conjunction with a diamond anvil cell, the system still works down to about 830K.
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LLNL scientists have developed a new metal additive manufacturing technique that uses diode lasers in conjunction with a programmable mask to generate 2D patterns of energy at the powder surface. The method can produce entire layers in a single laser shot, rather than producing layers spot by spot as is currently done in powder bed fusion methods.