# US 9,039,953 B2 · Method for producing a three-dimensional object > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,953 B2 - Document ID: US9039953B2 - Status: Granted - Kind: B2 - Application number: 13/671,867 - Filed: 2012-11-08 - Published: 2013-03-21 - Granted: 2015-05-26 - Earliest claimed: 2011-08-04 - Assignees: Arburg GmbH + Co KG - Applicants: Arburg GmbH + Co. KG - Inventors: Herbert Kraibühler; Eberhard Duffner - Web page: https://patentgrep.com/patent/US9039953B2 ## CPC - B29C 64/112: using individual droplets, e.g. from jetting heads - B29C 64/176: Sequentially - B33Y 10/00: Processes of additive manufacturing - Y10T 428/19: Sheets or webs edge spliced or joined - B29C: 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 B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A method serves to produce a three-dimensional object by additive construction in direct construction sequence from solidifiable material, which is either present in the starting state in a fluid phase or can be liquefied, where multiple material components are discharged alternately in a programmable manner by means of multiple discharge units and configure different parts of the object joined to one another as a result of the discharge, where the geometric proportions obtained during discharge already correspond to the object, and because the material components form between them either edge regions merging into one another without boundaries or boundary regions of the different material components abutting one another without joining, a method and an object produced therewith can be provided, in which boundary and edge regions are formed “as if from one piece” between different material components even in the case of complex geometries. ## Claims ### Claim 1 Method for producing a three-dimensional object in direct construction sequence by additive construction from solidifiable material, which is in the starting state a plasticized material or a plasticizable material, wherein in the direct construction sequence different material components are discharged under a pressure of more than 10 MPa alternately in a programmable manner by means of multiple discharge units and, already joined to one another as a result of the discharge, configure different parts of the object, wherein the different material components are placed next to one another drop by drop wherein the pressure generates the drops by direct coupling, wherein the geometric proportions obtained during discharge already correspond to a geometry of the object in a final state, wherein the material components between each other form edge regions merging and fusing into one another without boundaries, wherein the material components constitute a connecting structure at the edge regions. ### Claim 2 (depends on 1) Method according to claim 1, wherein the additive construction occurs from layer to layer. ### Claim 3 (depends on 1) Method according to claim 1, wherein the drops join together in a positive-locking manner. ### Claim 4 (depends on 1) Method according to claim 1, wherein there is discharged in the edge region a material component forming an intermediate layer and configured as a separable connection between the materials adjoining the intermediate layer. ### Claim 5 (depends on 4) Method according to claim 4, wherein a material component is discharged as a support for the at least one further material component, which can be detached after production of the object. ### Claim 6 (depends on 1) Method according to claim 1, wherein the material components are not compatible with one another. ### Claim 7 (depends on 1) Method according to claim 1, wherein the different material components form a structure connecting multiple adjoining parts. ### Claim 8 (depends on 7) Method according to claim 7, wherein the structure connecting the parts forms a sliding connection or an intermediate layer, which adjoins the parts and is detachable upon movement. ### Claim 9 (depends on 8) Method according to claim 8, wherein the intermediate layer forms a predetermined spacing or a clearance between the parts of the object adjoining the intermediate layer. ### Claim 10 (depends on 1) Method according to claim 1, wherein a standard commercially available material or a material present during injection moulding is used as solidifiable material. ### Claim 11 (depends on 1) Method according to claim 1, wherein the solidifiable material is processed by a plasticising unit wherein the plasticising unit includes the multiple discharge units. ### Claim 12 Method for producing a three-dimensional object in direct construction sequence by additive construction from solidifiable material, which is in the starting state a plasticized material or a plasticizable material, wherein in the direct construction sequence different material components are discharged under a pressure of more than 10 MPa alternately in a programmable manner by means of multiple discharge units and, already joined to one another as a result of the discharge, configure different parts of the object, wherein the different material components are placed next to one another drop by drop wherein the pressure generates the drops by direct coupling, wherein the geometric proportions obtained during discharge already correspond to a geometry of object in a final state, wherein the material components between each other form boundary regions of the different material components abutting one another without joining and constituting a surface structure. ### Claim 13 (depends on 12) Method according to claim 12, wherein there is discharged in the boundary region a material component forming an intermediate layer and configured as a separable connection between the materials adjoining the intermediate layer. ### Claim 14 (depends on 13) Method according to claim 13, wherein a predetermined spacing or a clearance between the parts of the object adjoining the intermediate layer is set by means of the intermediate layer. ### Claim 15 (depends on 14) Method according to claim 14, wherein a material component is discharged as a support for the at least one further material component, which can be detached after production of the object. ### Claim 16 (depends on 12) Method according to claim 12, wherein the material components are not compatible with one another. ### Claim 17 (depends on 12) Method according to claim 12, wherein the different material components form a structure connecting multiple adjoining parts. ### Claim 18 (depends on 17) Method according to claim 17, wherein the structure connecting the parts forms a sliding connection or an intermediate layer, which adjoins the parts and is detachable upon movement. ### Claim 19 (depends on 18) Method according to claim 18, wherein the intermediate layer forms a predetermined spacing or a clearance between the parts of the object adjoining the intermediate layer. ### Claim 20 (depends on 12) Method according to claim 12, wherein a standard commercially available material or a material present during injection moulding is used as solidifiable material. ### Claim 21 (depends on 12) Method according to claim 12, wherein the solidifiable material is processed by a plasticising unit wherein the plasticising unit includes the multiple discharge units.