Manufacturing method and tool for carbon parts

Patent metadata

Field	Value
Publication number	US-11472137-B2
Application number	US-201917051313-A
Country	US
Kind code	B2
Filing date	Apr 24, 2019
Priority date	May 4, 2018
Publication date	Oct 18, 2022
Grant date	Oct 18, 2022

Abstract

A method of manufacturing a product including at least two carbon parts including the step of: manufacturing a first carbon part, manufacturing at least a second carbon part, providing on a surface of one of the first carbon part or second carbon part a plurality of protrusions including a carbon resin, joining together the first carbon part and the second carbon part in such a way that the plurality of protrusions is interposed between the first carbon part and second carbon part for providing physical and electrical connection is provided.

First claim

The invention claimed is:

1. A method of manufacturing a product including at least two carbon parts, the method comprising:
manufacturing a first carbon part;
manufacturing a second carbon part, wherein the first carbon part and the second carbon part each comprise a composite material including a plurality of fibers;
transferring a plurality of protrusions including a carbon resin from a band disposed proximate a pultrusion die to a surface of one of the first carbon part or the second carbon when the plurality of fibers crosses the pultrusion die from an inlet section of the pultrusion die to an outlet section of the pultrusion die; and
joining together the first carbon part and the second carbon part to form the product in such a way that the plurality of protrusions are interposed between the first carbon part and the second carbon part for providing a physical and electrical connection.

2. The method of manufacturing as claimed in claim 1 , wherein the plurality of protrusions comprise at least one dot.

3. The method of manufacturing as claimed in claim 1 , wherein the plurality of protrusions comprise at least one strip.

4. The method of manufacturing as claimed in claim 1 , wherein the plurality of protrusions are injected on the surface of one of the first carbon part or the second carbon part.

5. The method of manufacturing as claimed in claim 1 , wherein the plurality of protrusions are deposited on the surface of one of the first carbon part or the second carbon part.

6. The method of manufacturing as claimed in claim 1 , wherein the plurality of protrusions are organized in a pattern.

7. The method of manufacturing as claimed in claim 1 , wherein at least one of the first carbon part and the second carbon part is manufactured by pultrusion.

8. The method of manufacturing as claimed in claim 7 , wherein the plurality of protrusions are provided on the surface of one of the first carbon part or the second carbon part during a pultrusion step.

9. The method of manufacturing as claimed in claim 8 , wherein the plurality of protrusions are deposited on the surface of one of the first carbon part or the second carbon part inside a pultrusion die.

10. The method of manufacturing as claimed in claim 1 , wherein one of the first carbon part or the second carbon part is a portion of a wind turbine blade.

11. A pultrusion die longitudinally extending along a pultrusion direction between an inlet section for receiving a plurality of fibers and an outlet section for delivering a plurality of resin-soaked fibers, the pultrusion die comprising:
a band including a plurality of protrusions including a carbon resin, the band being disposed in such a way that the plurality of protrusions are transferred from the band to the plurality of fibers when the plurality of fibers cross the pultrusion die from the inlet section to the outlet section.

12. The pultrusion die as claimed in claim 11 , wherein the band is annularly shaped around a band axis, transversal to the pultrusion direction, the band being able to rotate around the band axis.

Assignees

• Siemens Gamesa Renewable Energy As

Inventors

• Pedersen David Stien

Classifications

• B29K2995/0005

  Conductive · CPC title

• B29C66/1122

  Single lap to lap joints, i.e. overlap joints (B29C66/45, B29C66/472, B29C66/52272 take precedence) · CPC title

• Y02E10/72

  Wind turbines with rotation axis in wind direction · CPC title

• B29C66/45

  Joining of substantially the whole surface of the articles (methods or apparatus for laminating B32B37/00) · CPC title

• B29C66/232

  said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines · CPC title