# US 12,594,720 B2 · Method for manufacturing a component by fused filament fabrication and apparatus for producing a component > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,594,720 B2 - Document ID: US12594720B2 - Status: Granted - Kind: B2 - Application number: 18/390,778 - Filed: 2023-12-20 - Published: 2024-04-11 - Granted: 2026-04-07 - Earliest claimed: 2020-05-14 - Assignees: Ford Global Technologies, LLC - Applicants: Ford Global Technologies, LLC - Inventors: Thomas Baranowski; Maik Broda; Markus Franzen; Pascal Rebmann - Web page: https://patentgrep.com/patent/US12594720B2 ## CPC - B29C 64/245: Platforms or substrates (support structures intended to be sacrificed after manufacture B29C64/40) - B29C 64/118: using filamentary material being melted, e.g. fused deposition modelling [FDM] - B33Y 10/00: Processes of additive manufacturing - B33Y 30/00: Apparatus for additive manufacturing; Details thereof or accessories therefor - B33Y 70/00: Materials specially adapted for additive manufacturing - H01F 1/147: Alloys characterised by their composition {(treatment thereof for enhancing their electromagnetic properties C21D8/12)} - H01F 41/0206: {Manufacturing of magnetic cores by mechanical means (magnetic cores per se H01F27/24)} - H01F 41/14: for applying magnetic films to substrates - B29K 2505/00: Use of metals, their alloys or their compounds, as filler - B29K 2995/0003: having particular electrical or magnetic properties, e.g. piezoelectric - B29K 2995/0008: Magnetic or paramagnetic - 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 - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS ## Abstract An apparatus for producing a component by fused filament fabrication includes a substrate plate for depositing layers of the component. The substrate plate is magnetized before depositing a first layer of the component on the substrate plate by the fused filament fabrication, the first layer including a first substance that contains magnetic material. At least one further layer of the component including a second substance that does not contain a magnetic material is deposited on the first layer by the fused filament fabrication, and the substrate plate is demagnetized after forming the component. ## Claims ### Claim 1 An apparatus for producing a component by fused filament fabrication comprising: a substrate plate for depositing layers of the component, the substrate plate having an embedded electromagnet; and at least one printing head, the printing head configured to deposit a magnetic material by the fused filament fabrication, wherein the substrate plate is: actively magnetizable by passing a current through the embedded electromagnet such that the magnetic material is magnetically attracted by the substrate during production of the component, and demagnetizable by switching off the current to the embedded electromagnet such that the magnetic material is not magnetically attracted to the substrate. ### Claim 2 (depends on 1) The apparatus according to claim 1 further comprising a first printing head for depositing a first layer having magnetic material and a second printing head for depositing a at least one further layer. ### Claim 3 (depends on 1) The apparatus according to claim 1, wherein the substrate plate is heated. ### Claim 4 (depends on 1) The apparatus according to claim 1, wherein the magnetic material is chosen from the group consisting of iron, nickel, cobalt, and alloys thereof. ### Claim 5 (depends on 2) The apparatus according to claim 2, wherein the first layer comprises a polymer substance. ### Claim 6 (depends on 2) The apparatus according to claim 2, wherein the at least one further layer comprises a polymer substance. ### Claim 7 (depends on 1) The apparatus according to claim 1, wherein the substrate plate further comprises a resistive heater. ### Claim 8 (depends on 1) The apparatus according to claim 1, wherein the electromagnet comprises an iron core and a coil surrounding the iron core. ### Claim 9 An apparatus for producing a component by fused filament fabrication comprising: a substrate plate for depositing layers of the component, the substrate plate having an embedded electromagnet; and a first printing head for depositing a first layer having magnetic material; and a second printing head for depositing at least one further layers, wherein the substrate plate is: actively magnetizable by passing a current through the electromagnet such that the magnetic material is magnetically attracted by the substrate during production of a component, and demagnetizable by switching off the current to the electromagnet such that the magnetic material is not magnetically attracted to the substrate. ### Claim 10 (depends on 9) The apparatus according to claim 9, wherein the substrate plate is heated. ### Claim 11 (depends on 9) The apparatus according to claim 9, wherein the magnetic material is chosen from the group consisting of iron, nickel, cobalt, and alloys thereof. ### Claim 12 (depends on 9) The apparatus according to claim 9, wherein the first layer comprises a polymer substance. ### Claim 13 (depends on 9) The apparatus according to claim 9, wherein at least one of the further layers comprises a polymer substance. ### Claim 14 (depends on 9) The apparatus according to claim 9, wherein the substrate plate further comprises a resistive heater. ### Claim 15 (depends on 9) The apparatus according to claim 9, wherein the electromagnet comprises an iron core and a coil surrounding the iron core.