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Method and apparatus for curing composite component layups

A technology for composite parts and equipment, which is applied in the field of controlling heating tools used to cure the coating of composite parts, and can solve the problems of reducing production environment yield, non-optimal curing of parts coating, and temperature reduction.

Active Publication Date: 2016-03-02
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively large thermal mass of conventional curing tools, the heat added to the coating by the exothermic reaction cannot be removed quickly or easily, which can result in a non-optimal cure of the coating
The problem of draining excess heat generated by exothermic reactions in the cladding is more complex in component claddings that have a combination of thinner and thicker regions, since trying to reduce the temperature in thicker regions of the cladding may Reduce the temperature of the thinner areas of the coating to a level below the desired curing temperature
[0003] In the past, attempts to control component layup temperature changes due to exothermic reactions have been limited to utilizing relatively slow temperature ramp profiles, but this approach can be time consuming and can reduce throughput in production environments
Also, in some applications it is difficult to maintain a relatively slow heating rate, and any temperature error during the temperature ramp can lead to non-optimal curing of the component coating

Method used

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  • Method and apparatus for curing composite component layups
  • Method and apparatus for curing composite component layups
  • Method and apparatus for curing composite component layups

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Embodiment Construction

[0053] first reference figure 1 , the disclosed embodiments provide a method and apparatus 18 for curing a composite part layup 40 including a composite utilizing a resinous binder that can undergo an exothermic reaction during curing, the exothermic The reaction generates heat - hereinafter sometimes referred to as "reaction heat". The apparatus 18 broadly includes a set of complementary tools 20 each having a susceptor 22 that engages a component layup 40 . Tool 20 is mounted within press 32 and heated by induction heating system 24 to cure and compact layup 40 . Retaining the coating 40 within the set of solid tools 20 during curing can reduce or eliminate loss of dimensional stability during handling. Sensors 26 coupled to susceptor 22 are used to sense temperature at various locations on susceptor 22 to determine whether there is excess cure on susceptor 22 due to reaction heat generated by exothermic reactions in blanket 40. temperature area.

[0054] Cooling system ...

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Abstract

The present invention discloses curing a composite component layup utilizing a set of tools adapted to hold the layup and including at least one tool face contacting the layup. Means are provided for heating the tool face to cure the component coating, and means for selectively cooling portions of the tool face.

Description

technical field [0001] The present invention relates generally to techniques and apparatus for curing composite parts, and more particularly to methods and apparatus for controlling a heating tool used to cure a layup of a composite part. Background technique [0002] Composite part layups may be cured using a tool heated to a predetermined temperature required to cure the layup, commonly referred to as the "cure temperature." In some cases, the layup is cured within a companion tool kit that compresses the layup during the curing process to produce a compacted, mesh-like part. This curing process is sometimes complicated by component layups that utilize specific types of binder resins, such as thermosetting resins that undergo an exothermic reaction during the curing process. The heat generated by this exothermic reaction raises the temperature of the coating above the curing temperature. Due to the relatively large thermal mass of conventional curing tools, the heat adde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C35/02B29C35/08B29C35/16H05B6/02H05B6/06B29C70/34B29C70/54
CPCB29C35/0288B29C35/16B29C70/345B29C2035/0811B29C2035/1616B29K2101/10B29K2105/06H05B6/105H05B6/14Y10T428/31504
Inventor M·R·马森M·A·尼格利K·E·彼得森
Owner THE BOEING CO