Patent ID: 9738031
Date: 2017-08-22
CPC Classifications: B29C,B32B,B33Y,D01F,Y10T

Claim:
1. A method for building a three-dimensional object with an additive manufacturing system having an extrusion head, the method comprising: extruding a flowable consumable material from an extrusion tip of the extrusion head, wherein the flowable consumable material comprises a core material and a shell material that is compositionally different from the core material, and wherein the shell material at least partially encases the core material to provide an interface between the core material and the shell material; depositing the flowable consumable material as extruded roads that define a layer of the three-dimensional object; and solidifying the extruded roads, wherein the solidified roads have core regions of the core material and shell regions of the shell material, wherein the core regions and the shell regions substantially retain cross-sectional profiles corresponding to the interface between the core material and the shell material of the flowable consumable material and wherein the core material and the shell material at least partially interdiffuse at the interface between the core material and the shell material.