Method for producing a component and manufacturing device

Patent metadata

Field	Value
Publication number	US-11275333-B2
Application number	US-201916692313-A
Country	US
Kind code	B2
Filing date	Nov 22, 2019
Priority date	Nov 26, 2018
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

A method is described for producing a component, having a first constructive step in which a support material is applied onto a bearer using a photoelectric print method in the first constructive step to form at least one auxiliary structure, the auxiliary structure having and/or forming intermediate spaces, and having a second constructive step, in which a component material is filled into the intermediate spaces using a further photoelectric print method to form a component structure, the auxiliary structure and the component structure forming a blank segment of the component, the component material being a powder, the powder including composite particles, the composite particles being formed by ceramic and/or metallic core particles that include a polymer 23.

First claim

What is claimed is:

1. A method for producing a component, comprising the following steps:
in a first constructive step, providing at least one auxiliary structure, the auxiliary structure including a support material on a bearer, the auxiliary structure having and/or forming intermediate spaces;
in a second constructive step, filling a component material into the intermediate spaces using a photoelectric print method to form a component structure, the auxiliary structure and the component structure forming a blank segment of the component;
wherein the component material is a powder, the powder including composite particles, the composite particles being formed by ceramic and/or metallic core particles, and the composite particles including a polymer.

2. The method as recited in claim 1 , wherein the first constructive step further includes applying the support material onto the bearer using a further photoelectric print method for form the at least one auxiliary structure.

3. The method as recited in claim 1 , wherein the polymer forms a polymer layer, the core particles being coated with the polymer layer completely or at least in some segments.

4. The method as recited in claim 1 , wherein the polymer forms separate polymer particles, a plurality of the polymer particles being attached to one of the core particles in each case.

5. The method as recited in claim 3 , wherein:
the core particles have an average grain diameter of greater than 1 μm and/or less than 30 μm, and/or
the polymer layer has a layer thickness of greater than 1 μm and/or less than 10 μm.

6. The method as recited in claim 4 , wherein the polymer particles have an average grain diameter of greater than 1 μm and/or less than 10 μm.

7. The method as recited in claim 1 , wherein the polymer forms a polymer matrix, a plurality of the core particles being embedded in the polymer matrix.

8. The method as recited in claim 7 , wherein the core particles have an average grain diameter of greater than 0.01 μm and/or less than 1 μm.

9. The method as recited in claim 1 , wherein the composite particles have an average grain size of greater than 5 μm and/or less than 30 μm.

10. The method as recited in claim 1 , wherein the polymer has polymer as a principal component and has, as a secondary component, a charge control agent and/or a heat absorber.

11. The method as recited in claim 2 , wherein, through multiple carrying out of the first and of the second constructive step, a blank is formed from a plurality of blank segments, such that subsequent blank segment of the plurality of blank segments in each case can have a geometry identical to or different from a preceding one of the plurality of blank segments.

12. The method as recited in claim 1 , further comprising the following step:
a separating step including removing the auxiliary structure and/or the bearer from the blank segment through vaporization and/or dissolving of the support material, a green compact being formed in the separating step.

13. The method as recited in claim 11 , further comprising the following step:
a separating step including removing the auxiliary structure and/or the bearer from the blank through vaporization and/or dissolving of the support material, a green compact being formed in the separating step.

14. The method as recited in claim 1 , wherein the support material is water-soluble and/or has a boiling point lower than a melting temperature of the component material.

15. The method as recited in claim 1 , further comprising the following step:
a debinding step, the polymer being dissolved out from the component material, and a brown compact being formed, in the debinding step.

16. The method as recited in claim 11 , further comprising the following step:
a solidification step, including sintering and/or solidifying the blank, and the component being formed in the solidification step.

17. The method as recited in claim 1 , further comprising the following step:
a solidification step, including sintering and/or solidifying the blank segment, and the component being formed, in the solidification step.

18. The method as recited in claim 12 , further comprising the following step:
a solidification step, including sintering and/or solidifying the green compact, and the component being formed in the solidification step.

19. The method as recited in claim 15 , further comprising the following step:
a solidification step, including sintering and/or solidifying the brown compact, and the component being formed in the solidification step.

Assignees

• Bosch Gmbh Robert

Inventors

• Bertsch Benjamin
• Fischer Florian
• Loeber Lukas
• Schoepf Martin
• Walther Michael
• Heeling Thorsten
• Fischer Arne Stephen

Classifications

• G03G15/224 Primary

  Machines for forming tactile or three dimensional images by electrographic means, e.g. braille, 3d printing · CPC title

• B29C64/165 Primary

  using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber · CPC title

• B22F1/102

  Metallic powder coated with organic material · CPC title

• B22F1/00

  Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties · CPC title

• B22F12/20

  Cooling means · CPC title