Construction chamber for an apparatus for additive manufacturing of three-dimensional objects

Patent metadata

Field	Value
Publication number	US-11148366-B2
Application number	US-201715663701-A
Country	US
Kind code	B2
Filing date	Jul 28, 2017
Priority date	Jul 29, 2016
Publication date	Oct 19, 2021
Grant date	Oct 19, 2021

Abstract

The invention relates to a construction chamber ( 1 ) for an apparatus for additive manufacturing of three-dimensional objects, comprising a construction chamber base body ( 2 ) which limits a construction volume ( 4 ) forming a construction room ( 3 ), wherein the construction chamber base body ( 2 ) is formed segmented in several construction chamber base body segments ( 2 a, 2 b ) that can be attached or are attached to each other forming the construction chamber base body ( 2 ).

First claim

The invention claimed is:

1. A construction chamber for an apparatus for additive manufacturing of three-dimensional objects, the construction chamber comprising a construction chamber base body which limits a construction volume forming a construction room, wherein the construction chamber base body comprises:
a first construction chamber base body segment;
a second construction chamber base body segment that can be attached or is attached to the first construction chamber base body segment by at least one first attachment element arranged or formed on the first construction chamber base body segment and interacting with at least one second attachment element arranged or formed on the second construction base body segment;
wherein the second construction chamber base body segment further comprises at least one third attachment element arranged or formed thereon and configured to facilitate a third construction chamber base body segment to be attached to the second construction chamber base body segment at least in part by interacting with at least one fourth attachment element arranged or formed on the third construction chamber base body segment, wherein each of the first, second, and third construction chamber base body segments limits a respective construction room portion describing a full inner perimeter of a corresponding portion of the construction room and co-defining a base shape of the construction room.

2. The construction chamber according to claim 1 , wherein the construction chamber base body segment is formed segmented in at least one horizontal segmentation plane, wherein the second construction chamber base body segment can be attached vertically on top of the first construction chamber base body segment.

3. The construction chamber according to claim 1 , wherein the first construction chamber base body segment and/or the second construction chamber base body segment has a hollow parallelepiped, a hollow cylindrical, or an annular disk-shaped base shape.

4. The construction chamber according to claim 1 , wherein the second construction chamber base body segment is identically formed in geometric structural manner or is formed differently in at least one geometric structural parameter, as compared to the first construction chamber base body segment.

5. The construction chamber according to claim 1 , wherein a respective one of the at least one first attachment element is configured to interact with a respective one of the at least one second attachment element, and/or a respective one of the at least one second attachment element is configured to interact with a respective one of the at least one second attachment element, in a form-locked and force-locked manner.

6. The construction chamber according to claim 5 , wherein a respective one of the at least one first attachment element is configured to interact with a respective one of the at least one second attachment element, and/or wherein a respective one of the at least one third attachment element is configured to interact with a respective one of the at least one fourth attachment element, in a force-locked manner.

7. The construction chamber according to claim 1 , wherein the first construction chamber base body segment and/or the second construction chamber base body segment is a metal component manufactured by a machining operation.

8. The construction chamber according to claim 1 , wherein the construction room has a maximum depth of 140 cm, after attaching the second construction chamber base body segment to the first construction chamber base body segment, and/or after attaching the second construction chamber base body segment to the first construction chamber base body segment and the third construction chamber base body segment to the second construction chamber base body segment.

9. An apparatus for additive manufacturing of three-dimensional objects, the apparatus comprising at least one construction chamber according to claim 1 .

10. The construction chamber according to one of the claim 1 , wherein the at least one first attachment element is or can be attached to the at least one second attachment element at least in part by one or more attachment bolts; and/or wherein the at least one third attachment element is or can be attached to the at least one fourth attachment element at least in part by one or more attachment bolts.

11. The construction chamber according to claim 10 , wherein a respective one of the at least one first attachment element, the at least one second attachment element, the at least one third attachment element, and/or the at least one fourth attachment element respectively comprises a through hole or a blind hole.

12. The construction chamber according to claim 11 , wherein a respective one of the at least one first attachment element, the at least one second attachment element, the at least one third attachment element, and/or the at least one fourth attachment element respectively comprises a sleeve-like centering element.

13. The construction chamber according to claim 10 , wherein a respective one of the at least one first attachment element, the at least one second attachment element, the at least one third attachment element, and/or the at least one fourth attachment element respectively comprises a tapered recess section and a through-hole configured to receive a corresponding one of the one or more attachment bolts.

14. The construction chamber according to claim 1 , wherein the construction chamber base body is less than 50 cm in height prior to attaching the second construction chamber base body segment to the first construction chamber base body segment.

15. The construction chamber according to claim 14 , wherein the first construction chamber base body segment is less than 50 cm in height.

16. The construction chamber according to claim 6 , wherein a respective one of the at least one first attachment element, the at least one second attachment element, the at least one third attachment element, and/or the at least one fourth attachment element comprise an attachment receiver that can at least partially be penetrated by an attachment bolt.

17. The construction chamber according to claim 8 , wherein the construction room has a depth in a range between 80 cm and 120 cm.

Assignees

• Cl Schutzrechtsverwaltungs Gmbh
• Concept Laser Gmbh

Inventors

• Herzog Frank
• Bechmann Florian
• Schödel Frank

Classifications

• B22F12/38

  Housings, e.g. machine housings · CPC title

• B22F12/30

  Platforms or substrates · CPC title

• B22F10/28

  Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] · CPC title

• B29C64/25 Primary

  Housings, e.g. machine housings · CPC title

• B29C64/153

  using layers of powder being selectively joined, e.g. by selective laser sintering or melting · CPC title