Additive manufacturing plate equipped with a stiffener in the form of a panel hollowed out in a portion of the thickness of same

Patent metadata

Field	Value
Publication number	US-11247273-B2
Application number	US-201716308120-A
Country	US
Kind code	B2
Filing date	May 18, 2017
Priority date	Jun 9, 2016
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

An additive manufacturing plate (10) comprises a main body (32), this main body (32) taking the form of a panel, and the main body (32) comprising an upper face on which the components are manufactured directly. The additive manufacturing plate comprises a stiffener (12) that is independent of the main body (32) and secured to the lower face (34) of the main body, this stiffener (12) taking the form of a panel (36) and the panel (36) being hollowed out but only through a part of its thickness (E36). The stiffener (12) makes it possible to avoid excessive deformations of the additive manufacturing plate during the manufacturing process and is reusable.

First claim

The invention claimed is:

1. An additive manufacturing plate intended to serve as a support for the manufacturing of at least one component by an additive manufacturing process, the plate comprising:
a monolithic main body that acts as a manufacturing support, the main body being in the form of a panel and comprising an upper face on which components are manufactured directly, and the length and the width of the main body panel being greater than the thickness of the main body panel; and
a stiffener that is independent of the monolithic main body and secured to a lower face of the main body, the stiffener being in the form of a panel, the length and the width of the stiffener panel being greater than the thickness of the stiffener panel, and the stiffener panel being hollowed out in its thickness,
wherein the stiffener panel is not hollowed out through its entire thickness, and
wherein the stiffener panel is hollowed out in its thickness so as to exhibit a ribbed structure in its width and its length.

2. The additive manufacturing plate according to claim 1 , wherein hollowed out portions of the stiffener panel open out only onto a lower face of the stiffener panel and not onto an upper face of the stiffener panel.

3. The additive manufacturing plate according to claim 1 , wherein ribs of the stiffener panel form several branches around a central island situated at the center of the width and of the length of the stiffener panel.

4. The additive manufacturing plate according to claim 1 , wherein the stiffener panel has a width less than the width of the main body panel and a length less than the length of the main body panel.

5. The additive manufacturing plate according claim 1 , wherein the stiffener panel comprises a lower surface having an annular bearing surface for receiving a suction cup of circular section.

6. The additive manufacturing plate according to claim 1 , wherein the stiffener panel incorporates two centering means in two opposite corners.

7. An additive manufacturing machine comprising an additive manufacturing plate according to claim 1 .

8. An additive manufacturing process comprising:
using an additive manufacturing plate according to claim 1 as a support for the manufacturing of at least one component.

Assignees

• Michelin & Cie

Inventors

• Effernelli Albin

Classifications

• B22F10/28

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

• B29C64/153 Primary

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

• B22F12/30

  Platforms or substrates · CPC title

• B22F2003/1042

  with support for articles to be sintered · CPC title

• B33Y30/00

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