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

Patent metadata

Field	Value
Publication number	US-12186993-B2
Application number	US-202217992016-A
Country	US
Kind code	B2
Filing date	Nov 22, 2022
Priority date	May 19, 2017
Publication date	Jan 7, 2025
Grant date	Jan 7, 2025

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

The invention claimed is:

1. A method for producing an object by generative manufacturing by building up the object in layers, the method comprising:
building up a plurality of layers to form a supporting structure that supports at least one overhanging section, to be generated, of the object by the supporting structure;
wherein the plurality of layers comprises a first layer, a second layer, and a third layer;
wherein the first layer comprises a plurality of arches built up on a base;
wherein the second layer comprises a plurality of arches that are built up on top of the plurality of arches of the first layer;
wherein the third layer comprises at least one arch that is built up between the at least two arches of the second layer; and
wherein each arch of the plurality of arches of all of the first layer, the second layer, and the third layer is formed by arch segments which converge substantially in a buildup direction of the object and meet at a tip of the arch;
wherein the plurality of arches of the second layer comprise at least two arches that have different heights from each other;
wherein the at least two arches of the second layer are each connected to and extend away from, in the buildup direction, a corresponding tip of the plurality of arches of the first layer; and
wherein the at least one arch of the third layer is built up on mutually facing arch segments of the at least two arches of the second layer.

2. The method of claim 1 , wherein the plurality of arches of the first layer are built up directly on the base.

3. The method according to claim 1 , wherein:
an arch structure having the at least one arch is formed in a first region of the supporting structure; and
a supporting substructure that is different from the at least one arch 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.

4. The method according to claim 3 , wherein the supporting substructure is a delicate and/or fragile supporting substructure.

Assignees

• Premium Aerotec Gmbh

Inventors

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

Classifications

• B22F10/40

  Structures for supporting workpieces or articles during manufacture and removed afterwards · CPC title

• B22F10/20

  Direct sintering or melting · CPC title

• B22F10/47

  characterised by structural features · CPC title

• B22F10/28

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

• B33Y80/00 Primary

  Products made by additive manufacturing · CPC title