ADDITIVE MANUFACTURING WITH FUSING AND WARMING ENERGY SOURCES

Abstract: in one example in accordance with the present disclosure, an additive manufacturing system is described. the additive manufacturing system includes a build material deposition device to deposit a layer of a powder build material. the additive manufacturing system includes a fusing agent deposition device to deposit a fusing agent on a first portion of the layer that is to form a 3d object and a fusing energy source to deliver energy absorbed by the fusing agent to heat the first portion to a melting temperature of the powder build material. the additive manufacturing system also includes a warming energy source to deliver energy absorbed by a second portion of the layer to a temperature below the melting temperature. in this example, the second portion includes a warming agent and the fusing energy source and the warming energy source have different emission spectra.

Inventor(s): Krzysztof NAUKA, Aja HARTMAN

CPC Classification: B29C64/282 (SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms ; making laminated products by combining previously unconnected layers which become one product whose layers will remain together - ))

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