Method for manufacturing a component by fused filament fabrication and apparatus for producing a component

Patent metadata

Field	Value
Publication number	US-11926097-B2
Application number	US-202117317934-A
Country	US
Kind code	B2
Filing date	May 12, 2021
Priority date	May 14, 2020
Publication date	Mar 12, 2024
Grant date	Mar 12, 2024

Abstract

An additive manufacturing method for a component, the component being produced layerwise by fused filament fabrication, includes magnetizing a substrate plate, depositing at least one first layer on the substrate plate, this first layer including a first substance that contains magnetic material, depositing at least one further layer of a second substance, and demagnetizing the substrate plate. An apparatus for producing a component by fused filament fabrication includes a substrate plate for depositing layers of the component, wherein the substrate plate is magnetized before depositing a first layer on the substrate plate, the first layer including a first substance that contains magnetic material, and further layers including a second substance that does not contain a magnetic material are deposited on the first layer, and the substrate plate is demagnetized after forming the part.

First claim

What is claimed is:

1. An additive manufacturing method for a component, the component being produced layerwise by fused filament fabrication, the method comprising:
a) magnetizing a substrate plate;
b) depositing at least one first layer of the component on the substrate plate by the fused filament fabrication, the at least one first layer comprising a first substance that contains magnetic material such that the at least one first layer is magnetically attracted by the substrate plate;
c) depositing at least one further layer of the component onto the at least one first layer by the fused filament fabrication, the at least one further layer comprising a second substance; and
d) demagnetizing the substrate plate.

2. The additive manufacturing method according to claim 1 , wherein steps a) and b) are performed simultaneously.

3. The additive manufacturing method according to claim 1 , wherein steps c) and d) are performed simultaneously.

4. The additive manufacturing method according to claim 1 , wherein the magnetic material is chosen from the group consisting of iron, nickel, cobalt, and alloys thereof.

5. The additive manufacturing method according to claim 1 , further comprising heating the substrate plate.

6. The additive manufacturing method according to claim 1 , wherein the magnetization of the substrate plate is carried out by passing a current.

7. The additive manufacturing method according to claim 6 , further comprising heating the substrate plate.

8. The additive manufacturing method according to claim 1 , wherein the at least one further layer of the second substance comprises no magnetic material.

9. The additive manufacturing method according to claim 1 , wherein the at least one first layer comprises a polymer substance.

10. The additive manufacturing method according to claim 1 , wherein the at least one further layer comprises a polymer substance.

11. The additive manufacturing method according to claim 1 , wherein the at least one first layer is deposited using a first printing head and the at least one further layer is deposited on the substrate plate using a second printing head.

Assignees

• Ford Global Tech Llc

Inventors

• Baranowski Thomas
• Broda Maik
• Franzen Markus
• Rebmann Pascal

Classifications

• B29C64/245 Primary

  Platforms or substrates (support structures intended to be sacrificed after manufacture B29C64/40) · CPC title

• B29C64/118 Primary

  using filamentary material being melted, e.g. fused deposition modelling [FDM] · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• H01F1/147

  Alloys characterised by their composition {(treatment thereof for enhancing their electromagnetic properties C21D8/12)} · CPC title