Metal Jet is a binder jetting additive manufacturing technology. The process starts by filling the print
bucket (“build unit” from now on) with metal powder. Then, the build unit is inserted in the printer, where
the parts are formed by selectively gluing powder particles together employing a binding agent. After
that, the build job must go through a curing process where the binder solvents are evaporated. Finally,
the job is cooled, and the parts can be extracted and cleaned before going to a sintering oven. This last
process is called “de-caking” and it consists of removing the loose powder from the surface of the parts.
The remaining powder can be recovered and processed to be reused for future jobs.
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INC, HP, "AUTOREGULATED VACUUM NOZZLE", Technical Disclosure Commons, (May 03, 2021)