Additive manufacturing of metallic components – Process ...
2018-3-1u2002·u2002A shielding gas such as argon is used to protect the molten metal from oxidation and to carry the powder stream into the molten pool. DED-EB (Fig. 1(b)) uses an electron beam to create a deposit by feeding commercial filler wire into the molten pool. A large vacuum chamber provides a high-purity processing environment during the build and cooling.
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