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Hybrid structure blade, manufacturing method

A manufacturing method and hybrid structure technology, which can be applied to household appliances, other household appliances, household components, etc., can solve the technical threshold and high manufacturing cost of composite material-titanium alloy edge-wrapped fan blades, and the bonding process restricts composite material fans. Problems such as blade development and high mechanical properties of the adhesive layer are required to achieve the effect of reducing the volume of the clamp, reducing the weight and simplifying the structure.

Active Publication Date: 2021-08-31
AECC COMML AIRCRAFT ENGINE CO LTD
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AI Technical Summary

Problems solved by technology

The metal reinforced edge of the composite material fan blade currently used is restricted by the traditional processing technology, and only a few suppliers in the world have the ability to process the metal reinforced edge, which has caused the technical threshold and manufacturing of the composite material-titanium alloy edge-wrapped fan blade. The phenomenon that the cost remains high
[0004] Metal and composite materials are usually connected by adhesive bonding. This connection method requires high mechanical properties of the adhesive layer, especially when the blade is impacted, it is prone to degumming, delamination and other damage, resulting in the separation of metal and composite materials.
In addition, the complexity of the bonding process also restricts the development of composite fan blades

Method used

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  • Hybrid structure blade, manufacturing method
  • Hybrid structure blade, manufacturing method
  • Hybrid structure blade, manufacturing method

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Embodiment Construction

[0041] The following discloses a variety of different implementations or examples for implementing the described subject technical solutions. In order to simplify the disclosure, specific examples of various elements and arrangements are described below, which are, of course, only examples and are not intended to limit the scope of protection of the present invention. For example, where a first feature described later in the specification is formed on or above a second feature, it may include embodiments in which the first and second features are formed in a direct relationship, and may also include those formed between the first and second features. Implementation of additional features so that there may be no direct connection between the first and second features. Additionally, reference numerals and / or letters may be repeated in various instances throughout these disclosures. This repetition is for brevity and clarity and does not in itself represent a relationship betwee...

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Abstract

A hybrid structure blade, manufacturing method, and suture positioning jig. Wherein, the suture positioning jig includes a pressure face with a plurality of independently detachable pressure face segments; a suction face with a plurality of independently detachable suction face segments correspondingly connected with the pressure face segments; the pressure face A suture cavity is defined with the suction face for wrapping the blade. The above-mentioned manufacturing method and sewing positioning fixture have the advantages of accurate sewing, wide applicability, simple structure, etc., and the hybrid structure blade has the advantages of low processing cost, stable structure, and high bird strike resistance.

Description

technical field [0001] The invention relates to a hybrid structure blade, a manufacturing method and a suture positioning fixture. Background technique [0002] Large-sized, lightweight fan blades are one of the keys to large bypass ratio civil aero engines. At present, the light-weight and high-bypass ratio fan blade solutions successfully applied to products in the world include pure titanium alloy hollow fan blades and composite material-titanium alloy edging fan blades. If the weight reduction effect of lightweight fan blades is measured by the equivalent hollow ratio (reduced weight of the actual blade / solid titanium alloy blade of the same size), the all-titanium alloy hollow blade has achieved a weight reduction of 40% (that is, the actual hollow ratio ), while the composite-titanium alloy edging blade has achieved a weight reduction of more than 60% of the equivalent hollow ratio. The fan blade with a hybrid structure composed of composite materials and metal has b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C65/62B29C65/64B29C65/78B29L31/08
CPCB29C65/62B29C65/64B29C65/7847B29L2031/085
Inventor 刘传欣曹源王祯鑫王少辉倪晓琴王星星赵宪涛龙丹
Owner AECC COMML AIRCRAFT ENGINE CO LTD
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