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A schematic showing the cylinder style powder remover in action.  The electrode rotates while moving across the powder bed and attracts the excess powder/debris onto the dielectric layer

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…


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.

Metal 3d printing

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.