3 ms·
A related method not mentioned in this article (or, in fact, many places at all) is iro3d[1]'s "selective powder deposition": a 3D printer effectively creates a
by milkey_mouse 8y ago
A related method not mentioned in this article (or, in fact, many places at all) is iro3d[1]'s "selective powder deposition": a 3D printer effectively creates a mold out of sand, with empty spaces filled with a metal powder. After the "print", done in a crucible, is finished, an ingot of metal with a lower melting point is set on top & the whole thing
baked in a kiln. The metal from top fills the space between the granules of powder and solidifies with nearly no shrinkage (as the object is mostly made of the powder, which never melts).
[1] http://iro3d.com/ http://iro3d.com/
- falcolas 8y ago3d printing is mentioned, under the additive processes. It’s most likely not emphasized since the resulting product may have the size tolerances, but not the strength of the powdered metal. It’s still quite strong, but the strength is based off the “filler” material (similar to brazed parts), not the powdered metals (which acts more like rebar inside concrete). I imagine this lack of strength (or lack of integration) of the original powdered material is what holds it (and other similar additive processes) back from being a well recognized PM process.