tion of the wire melting speed and minifies the particle size.
In-flight particles have a great distinction in diameter under
lower air pressure, but with the increase of air pressure or
with a secondary atomizing, the atomized particles will be
fined and become uniform, so it is propitious to improve the
forming quality. Collecting in-flight particles and analyzing
particle size distribution under different spray distances and
different air pressures are helpful for keeping track of further
research of particle flattening degree and splats thickness after
impacting on the substrate