Production method for a component having integrated channels and component

Patent metadata

Field	Value
Publication number	US-11865611-B2
Application number	US-202017420730-A
Country	US
Kind code	B2
Filing date	Jan 22, 2020
Priority date	Jan 29, 2019
Publication date	Jan 9, 2024
Grant date	Jan 9, 2024

Abstract

A production method for a component having integrated channels for internal fluid guidance, having a first region, which is connected to a second region, and wherein the channels extend both through the first region and through the second region. The geometry of the component is modified to the technological characteristics of both production methods. The first region is produced by a method for casting using lost models without undercuts, and proceeding from the first region, the second region is built up using an additive manufacturing method.

First claim

The invention claimed is:

1. A production method for a component having integrated channels for internal guidance of fluid, the component comprising a first region which is connected to a second region and wherein the integrated channels run through both the first region and the second region, the method comprising:
producing the first region without undercuts by means of a process for casting with lost models, and,
starting from the first region, building up the second region using a generative manufacturing process, and
forming at least one aperture which is open toward the second region in the first region, said aperture forming a deflection region of a channel, running through the second region, with a change in flow direction.

2. The production method as claimed in claim 1 ,
wherein a greater number of channels are formed in the second region than in the first region.

3. The production method as claimed in claim 1 ,
wherein the first region is produced by means of precision casting.

4. The production method as claimed in claim 1 ,
wherein the first region is produced in series.

5. The production method as claimed in claim 1 ,
wherein the second region is manufactured individually.

6. The production method as claimed in claim 1 ,
wherein the first region is configured in the form of a blade root of a turbine blade and the second region is configured in the form of a blade airfoil of a turbine blade.

7. The production method as claimed in claim 6 ,
wherein the second region is configured in such a way that it comprises a part of the blade root.

Assignees

• Siemens Energy Global Gmbh & Co Kg

Inventors

• Fenske Sören
• Mattheis Thorsten
• Schäfer Martin

Classifications

• B22D25/02 Primary

  by its peculiarity of shape; of works of art {(cylinders, pistons B22D15/02)} · CPC title

• B22D39/023

  using a displacement member · CPC title

• B22F5/04 Primary

  of turbine blades · CPC title

• B22F7/08

  with one or more parts not made from powder {(B22F7/062 takes precedence)} · CPC title

• B22F10/00

  Additive manufacturing of workpieces or articles from metallic powder (apparatus or devices therefor B22F12/00) · CPC title