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Title: Induction heating cells with controllable thermal expansion of bladders and methods of using thereof

Abstract

Disclosed herein are induction heating cells and methods of using these cells for processing. An induction heating cell may be used for processing (e.g., consolidating and/or curing a composite layup having a non-planar portion. The induction heating cell comprises a caul, configured to position over and conform to this non-planar portion. Furthermore, the cell comprises a mandrel, configured to position over the caul and force the caul again the surface of the feature. The CTE of the caul may be closer to the CTE of the composite layup than to the CTE of the mandrel. As such, the caul isolates the composite layup from the dimensional changes of the mandrel, driven by temperature fluctuations. At the same time, the caul may conform to the surface of the mandrel, which can be used to define the shape and transfer pressure to the non-planar portion.

Inventors:
; ;
Issue Date:
Research Org.:
The Boeing Co., Chicago, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1651097
Patent Number(s):
10701767
Application Number:
15/841,964
Assignee:
The Boeing Company (Chicago, IL)
Patent Classifications (CPCs):
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING
DOE Contract Number:  
EE0005780
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/14/2017
Country of Publication:
United States
Language:
English

Citation Formats

Matsen, Marc R., Firth, Lee C., and Negley, Mark A.. Induction heating cells with controllable thermal expansion of bladders and methods of using thereof. United States: N. p., 2020. Web.
Matsen, Marc R., Firth, Lee C., & Negley, Mark A.. Induction heating cells with controllable thermal expansion of bladders and methods of using thereof. United States.
Matsen, Marc R., Firth, Lee C., and Negley, Mark A.. Tue . "Induction heating cells with controllable thermal expansion of bladders and methods of using thereof". United States. https://www.osti.gov/servlets/purl/1651097.
@article{osti_1651097,
title = {Induction heating cells with controllable thermal expansion of bladders and methods of using thereof},
author = {Matsen, Marc R. and Firth, Lee C. and Negley, Mark A.},
abstractNote = {Disclosed herein are induction heating cells and methods of using these cells for processing. An induction heating cell may be used for processing (e.g., consolidating and/or curing a composite layup having a non-planar portion. The induction heating cell comprises a caul, configured to position over and conform to this non-planar portion. Furthermore, the cell comprises a mandrel, configured to position over the caul and force the caul again the surface of the feature. The CTE of the caul may be closer to the CTE of the composite layup than to the CTE of the mandrel. As such, the caul isolates the composite layup from the dimensional changes of the mandrel, driven by temperature fluctuations. At the same time, the caul may conform to the surface of the mandrel, which can be used to define the shape and transfer pressure to the non-planar portion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {6}
}

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Works referenced in this record:

Method and apparatus for induction heat treatment of structural members
patent, June 2004


Ceramic die for induction heating work cells
patent, November 1997