Method for producing an object by means of generative manufacturing, component, in particular for an aircraft or spacecraft, and computer-readable medium

Patent metadata

Field	Value
Publication number	US-2020139436-A1
Application number	US-201916670655-A
Country	US
Kind code	A1
Filing date	Oct 31, 2019
Priority date	May 19, 2017
Publication date	May 7, 2020
Grant date	—

Abstract

Methods for producing an object by generative manufacturing, a component, and a computer-readable medium. In one method, a sheet-like part is formed with bulges. In another method, a supporting structure is formed with an arch formed by arch segments converging in the buildup direction and meet at an arch tip. In another method, a supporting structure is formed with a strut of a cloverleaf-like cross-sectional shape. In another method, a supporting structure is formed with a sheet-like part connected to the object and formed to project obliquely forward from the object in the buildup direction. In another method, a supporting structure is formed with a sheet-like part extending substantially along the buildup direction, the sheet-like part formed with apertures. In another method, a supporting structure is formed with a sheet-like part connected to the object and, in a region of transition of the same to the object to be generated, has a perforation and/or a predetermined breaking edge along a contour of the object.

First claim

1 . A method for producing an object by generative manufacturing by building up the object in layers,
wherein a supporting structure is built up in layers in order to attach the object to be generated to a base by the supporting structure; wherein the supporting structure is formed with a sheet-like part projecting from the base; and wherein the sheet-like part is formed with a multiplicity of bulges.

2 . The method as claimed in claim 1 , wherein to form the bulges, the sheet-like part is formed in two directions extending transversely to one another, in each case with a corrugated shape.

3 . A method for producing an object by generative manufacturing by building up the object in layers,
wherein, in addition, a supporting structure is built up in layers in order to support at least one overhanging section, to be generated, of the object by the supporting structure; wherein the supporting structure is formed with at least one arch; and wherein the arch is formed by arch segments which converge substantially in a buildup direction of the object and meet at a tip of the arch.

4 . The method as claimed in claim 3 , wherein
an arch structure having the at least one arch is formed in a first region of the supporting structure; and a supporting substructure of a different character from the at least one arch, in particular a relatively delicate and/or fragile supporting substructure, is formed in a second region of the supporting structure, wherein the arch structure and the supporting substructure are formed such that the arch structure supports the supporting substructure, and wherein the overhanging section is supported over an extended area against the arch structure by the supporting substructure during buildup of the overhanging section of the object.

5 . The method as claimed in claim 3 , wherein the supporting structure has a plurality of arches, wherein the arches are formed to be arranged one above each other in at least two tiers, and in that, in this case, arches of adjacent tiers are formed to be connected to one another.

6 . A method for producing an object by generative manufacturing by building up the object in layers,
wherein, in addition, a supporting structure is built up in layers in order to support at least one section, to be generated, of the object by the supporting structure and/or to stabilize at least one section, to be generated, of the object; wherein the supporting structure is formed with at least one strut of a cloverleaf-like cross-sectional shape, in particular a cross-sectional shape resembling a four-leaf clover.

7 . The method as claimed in claim 6 ,
wherein the strut is formed such that it extends between a base and the section of the object, or wherein the strut is formed such that it extends between the section of the object and another section of the object.

8 . The method as claimed in claim 6 ,
wherein the cross-sectional shape of the strut is formed with a plurality of leaf-type subregions which extend outward from a center of the cross-sectional shape, wherein the subregions each end, at an end thereof remote from the center, with a circular arc shape, in particular a semicircular shape, having a first radius, wherein subregions each adjacent to one another in a circumferential direction are connected to one another via a circular arc shape, in particular a quadrant shape, having a second radius.

9 . A method for producing an object by generative manufacturing by building up the object in layers,
wherein, at least temporarily during the building up of the object, a supporting structure is additionally built up in layers in order to support at least one overhanging section, to be generated, of the object by the supporting structure; wherein the supporting structure is formed with a sheet-like part; and wherein the sheet-like part is connected to the object and is formed to project obliquely forward from the object in a buildup direction of the object.

10 . The method as claimed in claim 9 ,
wherein the supporting structure is furthermore formed with a supporting substructure of a different character from the sheet-like part, in particular a relatively delicate and/or fragile supporting substructure, and wherein the sheet-like part and the supporting substructure are formed such that the supporting substructure is supported by the sheet-like part and the overhanging section of the object is supported over an extended area against the sheet-like part by the supporting substructure.

11 . A method for producing an object by generative manufacturing by building up the object in layers,
wherein a supporting structure is built up in layers to provide linear support by the supporting structure to at least one overhanging section of the object to be generated; wherein the supporting structure is formed with a sheet-like part extending substantially along the buildup direction of the object, and wherein the sheet-like part is formed with a multiplicity of apertures.

12 . The method as claimed in claim 9 , wherein the sheet-like part is formed with a perforation and/or a predetermined breaking edge along a contour of the object in a region of a transition thereof to the object to be generated, in which the sheet-like part is attached to the object.

13 . A method for producing an object by generative manufacturing by building up the object in layers,
wherein a supporting structure is built up in layers in order to support at least one section of the object to be generated by the supporting structure; wherein the supporting structure is formed with a sheet-like part; and wherein the sheet-like part is connected to the object and comprises a perforation and/or a predetermined breaking edge along a contour of the object in a region of a transition thereof to the object to be generated, in which the sheet-like part is attached to the object.

14 . The method as claimed in claim 13 , wherein the object is produced generatively from a metal material.

15 . A component, in particular for an aircraft or a spacecraft, configured to be produced with a method as claimed in claim 1 .

16 . A computer-readable medium, having computer-readable instructions, which, when carried out on a data processing device, cause a device or arrangement for generative manufacture comprising the data processing device or communicating therewith to carry out the method as claimed in claim 1 .

Assignees

• Premium Aerotec Gmbh

Inventors

• Lehmann Florian
• Mueller Thomas
• Harms Maureen
• Schröder Thorsten

Classifications

• B33Y50/02

  for controlling or regulating additive manufacturing processes · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B29C64/40 Primary

  Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof · CPC title

• B22F2003/1058

  Operations & Transport · mapped topic

• B22F3/1055 Primary

  Operations & Transport · mapped topic