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-11504771-B2
Application number	US-201916670655-A
Country	US
Kind code	B2
Filing date	Oct 31, 2019
Priority date	May 19, 2017
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

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, via a generative manufacturing technique, a supporting structure in layers in a buildup direction 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;
wherein, in each of two directions, the sheet-like part has a corrugated shape, such that a multiplicity of bulges is formed;
wherein the sheet-like part is formed such that a main extent of the sheet-like part in relation to which the bulges are defined is substantially planar;
wherein, while building up the supporting structure, the sheet-like part is formed in the two directions, which extend transversely to each other to define the substantially planar main extent of the sheet-like part; and
wherein the bulges form two-dimensionally alternating concavities and convexities with respect to the substantially planar main extent of the sheet-like part, such that the bulges protrude out of both sides of the substantially planar main extent.

Assignees

• Premium Aerotec Gmbh

Inventors

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

Classifications

• B33Y80/00 Primary

  Products made by additive manufacturing · CPC title

• B29C64/40 Primary

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

• Y02P10/25

  Process efficiency · CPC title