Method and apparatus for fabricating fibre reinforced thermoplastic composite structure

A reinforced thermoplastic, fiber-reinforced technology, used in chemical instruments and methods, transportation and packaging, climate sustainability, etc., to solve problems such as ultrasonic tape laying can not be achieved in an efficient and rapid way

Inactive Publication Date: 2014-03-12
AIRBUS OPERATIONS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as mentioned, when used with thermoplastic composites, the ultrasonic tape laying technique must agree that it cannot be achieved in an efficient and rapid manner.

Method used

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  • Method and apparatus for fabricating fibre reinforced thermoplastic composite structure
  • Method and apparatus for fabricating fibre reinforced thermoplastic composite structure
  • Method and apparatus for fabricating fibre reinforced thermoplastic composite structure

Examples

Experimental program
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Embodiment Construction

[0019] Referring to FIG. 1 , a typical apparatus for performing ultrasonic tape laying of thermoset composite materials is schematically shown. An upper layer 10 of thermoset tape is placed over an existing lower layer 12 of thermoset composite material. The lower layer 12 may be a single layer of thermoset tape material or may be a stack of multiple layers that have been previously deposited. Ultrasonic transducers 14 are positioned to introduce ultrasonic energy into the upper and lower layers of thermoset composite material within circled portions 16 shown in FIG. 1 . The upper and lower layers of the thermosetting composite material move relative to the ultrasonic transducer 14 in the direction shown in FIG. The point above the lower layer 12 of material.

[0020] Ultrasonic curing of thermoset composites occurs through the following mechanism and can be referred to figure 2 State the key features of material relevant to the institution, figure 2 Schematically showing ...

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PUM

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Abstract

An apparatus for fabricating a fibre reinforced thermoplastic composite structure is described. The apparatus comprises a localised heat source arranged to heat a portion of a stack of fibre reinforced thermoplastic material layers and an ultrasonic transducer arranged to locally introduce ultrasonic energy waves to the heated portion of the fibre reinforced thermoplastic material layers. The apparatus makes it possible to achieve ultrasonic consolidation of the layers occurs.

Description

Background technique [0001] Composite materials are now commonly used as structural materials in various industries. One such field is the aerospace industry, where structural composite materials are used to form an increasing proportion of aircraft structures. In this regard, composite materials are considered to be a polymer matrix reinforced with fibers or meshes, most typically carbon fibers but possibly fibers or metal meshes of other materials. Composites tend to fall into one of two main families of materials, those with a thermoplastic matrix and those with a thermoset matrix. Thermoset composites require vulcanization, a process by which the chemical structure of the polymer matrix is ​​irreversibly changed, usually by the application of heat and optionally pressure. Once vulcanized, a thermoset composite possesses its ultimate rigidity, hardness and strength properties and cannot return to its unvulcanized soft state. In contrast, thermoplastic composites do not r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C35/08B29C65/16B64C1/00C08J5/04B29C65/08
CPCB29C65/1612B29K2307/00B32B37/06B29C35/0805B29C35/10B29C70/386B29C66/91411B29C66/83411B29C65/1658B29C35/0261B29C2035/0838C08J5/04B29C2035/0822B29C35/0266Y02T50/433B32B2310/0843B29C66/91645B29C66/91943B29C65/18B29C65/085B32B2310/028B29K2101/12B29C66/0242B29C65/72B29C66/024Y02T50/43B29K2101/10B29C66/1122B29C66/43B29C65/08B29C66/91941B29C66/9592B29C35/045B32B2305/08B29C65/16B29C65/081B29C65/10B29C66/731B29K2105/06B29C66/721B29C66/91B32B37/14B29C66/71B29C66/73117B29C66/73921B29C66/73941B29C66/836B29C66/91445Y02T50/40Y10T428/24B29K2071/00
Inventor 大卫·因斯通
Owner AIRBUS OPERATIONS LTD
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