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Curing systems and methods utilizing electromagnetic forces and conductive heat transfer

An electromagnetic and electromagnet technology, which is applied in the field of manufacturing composite parts, can solve problems such as limitations and pressure limitations of hydraulic presses

Inactive Publication Date: 2015-08-05
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although generally satisfactory for forming composite structures of relatively small dimensions, hydraulic presses are limited in the amount of pressure that can be generated
As a result, the use of hydraulic presses to compact and cure large composite layups is limited
Also, the cure cycle for some composite layups may require the application of precise temperature and pressure levels that cannot be achieved with conventional hydraulic presses
Additionally, hydraulic presses can present cleaning and maintenance challenges given the use of hydraulic oil as the working fluid and various components such as accumulators, pumps, sealing mechanisms, and other hardware typically associated with hydraulic presses

Method used

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  • Curing systems and methods utilizing electromagnetic forces and conductive heat transfer
  • Curing systems and methods utilizing electromagnetic forces and conductive heat transfer
  • Curing systems and methods utilizing electromagnetic forces and conductive heat transfer

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Embodiment Construction

[0140] Referring now to the accompanying drawings, wherein the drawings are shown for the purpose of illustrating preferred embodiments of the present invention only and not for limiting the present invention, figure 1 shown is for use with figure 2 Composite stack 106 is formed as shown in figure 2 Composite structure 104 of system 10 is shown. Although any material may be used, the composite laminate 106 may be made of, for example, figure 2 Constructed with fiber reinforcement 109 and uncured resin 110 as shown. figure 1 The illustrated system 10 may include an electromagnetic press 12 having upper and lower dies 26 , 24 and at least one electromagnet 42 . The electromagnet 42 can be connected to at least one of the upper and lower molds 26 , 24 . Alternatively, one of the upper and lower molds 26, 24 may be configured as a pressure membrane 48 disposed on the opposite side of the composite laminate 106 from the remaining one of the upper and lower molds, as figure...

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Abstract

A system for forming a composite structure comprises an electromagnetic press including an upper die, a lower die and an electromagnet. The lower die may be mounted in spaced relation to the upper die for receiving a composite layup therebetween. The electromagnet is energizable such that the upper and lower dies apply a compressive force to the composite layup.

Description

technical field [0001] The present invention relates generally to the manufacture of composite components, and more particularly to electromagnetic presses for use in the manufacture of composite structures. Background technique [0002] Composite structures are used for a variety of purposes. For example, in aircraft construction, composite materials are being utilized in increasing quantities to form the fuselage, wings, tail, and other components of the aircraft. The manufacture of composite parts typically requires placing composite material on a tool or mold and curing the composite material under elevated temperature and pressure to form a rigid composite structure. Unfortunately, conventional practices for placing and curing composite materials often include many additional steps in order to produce a final composite structure with desired mechanical properties. [0003] For example, it may be necessary to compact or debulk and / or compact the composite layup prior t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C43/36B30B1/42
CPCB29C2043/522B29C2043/5816B29C2043/3211B29C43/36B30B1/42B29K2105/0854B29C2043/5808B30B15/34
Inventor M·M·范德维尔A·M·鲁宾
Owner THE BOEING CO