Articles and structures prepared by three-dimensional printing method

• US 10,226,919 B2
• Filed: 11/08/2016
• Issued: 03/12/2019
• Est. Priority Date: 07/18/2007
• Status: Active Grant

• Current Assignee: Voxeljet AG
• Original Assignee: Voxeljet AG
• Inventors: Ederer, Ingo
• Primary Examiner(s): Johnson, Christina A
• Assistant Examiner(s): Liu, Xue H
• Application Number:
  US15/345,589
• Publication Number:
  US 20170050387A1
• Time in Patent Office: 854 Days
• Field of Search: 358 19
• CPC Class Codes: B29C 64/153 using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• CPC Class Codes: B29C 64/165 using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
• CPC Class Codes: B29C 64/40 Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing

Abstract

The present invention relates to articles prepared using a three-dimensional printing method, an auxiliary structure being additionally formed beyond an extension of the one or more components during the construction of components. The invention also relates to an auxiliary structure for components produced by means of three-dimensional printing methods, the auxiliary structure being constructed along with the component and extending beyond a dimension of the one or more components.

Claims

1. An article comprising an auxiliary structure;

and one or more components produced by means of a three-dimensional printing method, whereby the auxiliary structure is constructed along with the one or more component and extending beyond a dimension of the one or more components;

wherein the auxiliary structure is connected directly to the one or more components; and

the auxiliary structure and the one or more components are formed from a same powder material and a same binder material.

2. The article of claim 1, wherein the auxiliary structure forms a holder or a coupling device for handling the component(s) after removing the auxiliary structure and the component(s) from loose powder.

3. The article of claim 1, wherein the auxiliary structure enables an automated handling of the components after removing the auxiliary structure and the component(s) from a loose powder.

4. The article of claim 1, wherein the auxiliary structure connects at least two components of a component layer.

5. The article of claim 1, wherein all constructed components are connected to the auxiliary structure.

6. The article of claim 1, wherein the one or more components includes a first component and a second component and the auxiliary structure is connected directly to the first and second components.

7. The article of claim 1, wherein the auxiliary structure largely surrounds one or more of the components.

8. The article of claim 1, wherein the auxiliary structure has a different color than the one or more components.

9. An article comprising:

an auxiliary structure connecting to one or more components, wherein the one or more components and the auxiliary structure are produced by means of a three-dimensional printing method, wherein the auxiliary structure extends beyond a dimension of the one or more components;

the auxiliary structure is connected indirectly to the one or more components;

the auxiliary structure and the one or more components include a same particulate material deposited in layers and connected selectively by a further material or by applying energy; and

the one or more components have a structure capable of being infiltrated by a fluid infiltration medium.

10. An article comprising:

an auxiliary structure connected directly by two or more components;

the auxiliary structure and the two or more components produced by means of a three-dimensional printing method, whereby the auxiliary structure is constructed along with the two or more component and extending beyond a dimension of the two or more components;

wherein the auxiliary structure and the components are formed from a same powder material and a same binder material.

11. The article of claim 10, wherein the article includes multiple layers of components.

12. The article of claim 11, wherein the article includes a separate auxiliary structure on each layer of components.

13. The article of claim 10, wherein the article includes a predetermined break points formed at junctions between each of the components and the auxiliary structure.

14. The article of claim 10, wherein the article includes loose powder material between two of the two or more components.

15. The article of claim 11, wherein the article includes loose powder material between adjacent layers of components.

16. The article of claim 14, wherein the auxiliary structure and the components are formed from the same powder material and the same binder material, and wherein the powder material of the auxiliary structure is the same as the powder material of the loose powder material.

17. An article comprising:

an auxiliary structure connected directly by two or more components;

the auxiliary structure and the two or more components produced by means of a three-dimensional printing method, whereby the auxiliary structure is constructed along with the two or more components and extending beyond a dimension of the two or more components;

wherein the two or more components includes a first component and a second component, the auxiliary structure and the first and second components include a same particulate material deposited in layers and connected selectively by a further material or by applying energy; and

the first and second components have a structure capable of being infiltrated by a fluid infiltration medium.

18. The article of claim 17, wherein the auxiliary structure is connected to the first component at a first predetermined break point and is connected to the second component at a second predetermined break point.

19. The article of claim 18, wherein the auxiliary structure allows for automatic handling of components that are too small to be handled automatically.

20. An article comprising:

an auxiliary structure;

a first component connected directly to the auxiliary structure; and

a second component;

connected directly to the auxiliary structure;

wherein the auxiliary structure and the two or more components are produced by means of three-dimensional printing methods including a same particulate material deposited in layers and connected selectively by a further material or by applying energy;

wherein the auxiliary structure extends beyond a dimension of the first component;

and the first and second components have a structure capable of being infiltrated by a fluid infiltration medium.

21. The article of claim 20, wherein the auxiliary structure is connected to the first component at a first predetermined break point and is connected to the second component at a second predetermined break point.

22. The article of claim 20, wherein the first component is identical to the second component.

23. The article of claim 20, wherein a horizontal plane passes through the first component, the second component, and the auxiliary structure.