CN106523430A - Fan blade and preparation method thereof - Google Patents
Fan blade and preparation method thereof Download PDFInfo
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- CN106523430A CN106523430A CN201510578381.6A CN201510578381A CN106523430A CN 106523430 A CN106523430 A CN 106523430A CN 201510578381 A CN201510578381 A CN 201510578381A CN 106523430 A CN106523430 A CN 106523430A
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- tenon
- core
- blade
- clad
- fan blade
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Abstract
The invention provides a fan blade and a preparation method thereof. The bearing capacity of a tenon of the fan blade can be improved. The fan blade comprises a blade body and the tenon. The tenon comprises a tenon core part and a coating layer. The outside of the tenon core part is coated with the coating layer. The tenon core part is made of metal materials. The coating layer and the blade body are made of continuous fiber-reinforced resin matrix composite.
Description
Technical field
The present invention relates to fan blade and preparation method thereof, more particularly to be suitable for aero-engine fan blade and
Its preparation method.
Background technology
Polymer matrix composites fan blade is to realize the important technical of aero-engine loss of weight synergy, but at present
Polymer matrix composites fan blade mostly be straight tenon header structure, blade and tenon are polymer matrix composites.If
Straight tenon head is changed to into circular arc tenon structure, it is possible to be effectively increased the real contact area of tenon and tongue-and-groove, improve leaf
Piece tenon stand under load situation, lifts Blade Properties.But as the anti-pressure ability of polymer matrix composites is weaker, cause tree
The tenon bearing capacity of resin-based composite fan blade is poor.
The content of the invention
It is an object of the invention to provide a kind of fan blade, its tenon bearing capacity is improved.
Another object of the present invention is to provide a kind of preparation method of fan blade.
A kind of fan blade, including blade body and tenon, wherein, the tenon includes tenon core and clad,
The outside of the tenon core is coated by the clad, the tenon core be metal material, the clad and
The blade body is made up of continuous fiber-reinforced resin matrix compound material.
Preferably, in described fan blade, the corner of the cross section of the tenon core is arc structure.
Preferably, in described fan blade, on the outside of the core of the tenon be easy to the clad
The groove of fiber yarn winding.
Preferably, in described fan blade, have on the outside of the core of the tenon and be suitable for the clad
The roughness of fiber yarn winding.
A kind of preparation method of fan blade includes：
Step one, there is provided tenon core, the tenon core are metal material；
Step 2, weaves on looms and makes the fiber preform of the blade body, in weaving process loom yarn
The fiber yarn of sufficient length is reserved on frame, to ensure the fiber yarn for having sufficient length for the tenon core
Voluble wrapping；
Step 3, suspends weaving, the tenon core is fixed on the bracing frame on the workbench of the loom,
Then the precast body of the clad on the outside of the cladding tenon core is woven in tenon region；And
Step 4, obtains the precast body of the whole fan blade of weaving, by the shaping work of composite resin material
Skill obtains fiber-reinforced resin matrix compound material blade.
Preferably, in the step 3, shedding motion, a Weft inserting device is enabled on the workbench,
Support frame as described above each side enables a beating device, will be drop-down on warp thread by controlling the shedding motion
Rise, while controlling Weft inserting device setting in motion, weft yarn is introduced in the both sides of the tenon core, subsequently control beating
Device starts action, and the weft yarn is urgent with the tenon core, forms the clad so as in tenon region
Precast body.
Preferably, in the step one, on the outside of the core of the tenon with the fiber for being easy to the clad
The groove of yarn winding.
Preferably, in the step one, there is on the outside of the core of the tenon fiber for being suitable for the clad
The roughness of yarn winding.
Preferably, in the step 3, the corner of the cross section of the tenon core is arc structure.
Preferably, in the step 4, the precast body of fan blade is carried out by the way of prestress pretwist
Turn, to ensure that its planform is effectively fitted with RTM moulds, and meet the requirement of RTM moulding process,
The precast body of the fan blade through pre torqued is put into into RTM moulds, is obtained by RTM moulding process
The fiber-reinforced resin matrix compound material blade.
Fan blade of the invention, its blade body be high performance fiber-reinforced resin matrix compound material, tenon
Head core is metal material, and clad is to include that the fibre reinforced materials such as blade body enters to tenon core
The fiber-reinforced resin matrix compound material of row braiding, therefore fan blade makes full use of metal material with composite
Respective advantage, the fan blade can also be effectively ensured blade tenon while fan blade weight is greatly reduced
The bearing capacity at position.
The method according to the invention makes full use of the respective advantage of metal material and composite, solves metal material
With polymer matrix composites connectivity problem, it is ensured that blade body and the structural continuity of tenon, traditional splicing is overcome
The problem that technique and welding procedure foreign material boundary strength are not enough.
Description of the drawings
The above and other features of the present invention, property and advantage will pass through with reference to the accompanying drawings and examples
Describe and become readily apparent from, wherein：
Fig. 1 is the schematic diagram according to fan blade in one embodiment of the invention；
Fig. 2 is the schematic diagram of the tenon core for showing fan blade in Fig. 1；
Fig. 3 is the schematic diagram of tenon core in Fig. 1；
Fig. 4 is the schematic diagram of the clad for weaving fan blade；
Schematic diagrames of the Fig. 5 for the precast body of fan blade；
Fig. 6 is the enlarged diagram of the device of correspondence tongue portion in Fig. 4；
Schematic diagrames of the Fig. 7 for the cross section of tenon core weaving structure.
Specific embodiment
With reference to specific embodiments and the drawings, the invention will be further described, elaborates in the following description more
Many details are in order to fully understand the present invention, but the present invention obviously can be with various other described different from this
Implementing, those skilled in the art can be in the case of without prejudice to intension of the present invention according to practical situations for mode
Make similar popularization, deduce, therefore should not be limited the scope of the invention with the content of this specific embodiment.
Fig. 1 shows tenon from the detached decomposition of blade body from the overall construction for showing fan blade, Fig. 2
Schematic diagram.It should be noted that these and follow-up others accompanying drawing are only as an example, its be not according to etc.
What the condition of ratio was drawn, and should not be construed as limiting in this, as the protection domain to actual requirement of the present invention.
As shown in Figure 1 and Figure 2, fan blade 10 includes blade body 15 and tenon 20, blade body 15
Can be wide beam string structure, tenon 20 includes tenon core 25 and clad 30, and tenon 20 can be cross-sectional angle
Structure of the portion in circular arc, tenon core 25 are metal material, and clad 30, blade body 15 are the same
Fiber-reinforced resin matrix compound material, the outside of tenon core 25 are coated by clad 30, aforementioned fiber reinforcement
Polymer matrix composites are that the reinforcing material being made up of the fiber preform of weaving is composited with resin material,
Fibrous warps between the carbon fiber precast body of the fiber preform of clad 30 and blade body 15 are continuous.Institute
It can be carbon fibre fabric or glass fabric to state reinforcing material.The resin material can be unsaturated polyester (UP) tree
Fat.The forming method of fiber-reinforced resin matrix compound material can be RTM moulding process (resin transfer moulding into
Type technique).Tenon core 25 can be titanium alloy.As described later, blade body 15 and clad 30 can be with
Complete in disposable weaving process, the fibrous warps of the reinforcing material of the two are continuous.The angle of the cross section of tenon 20
Portion is arc structure, to increase the real contact area of the tongue-and-groove when mounted of tenon 20.
Due to fan blade 10 blade body 15 be high performance fiber-reinforced resin matrix compound material, tenon
Core 25 is metal material of the corners of cross section in arc-shaped structure, and clad 30 is to include and blade body 15
The fiber-reinforced resin matrix compound material woven to tenon core 25 by the same fibre reinforced materials, therefore wind
Fan leaf makes full use of the respective advantage of metal material and composite.Fan blade with aforementioned mixed structure
10, while fan blade weight is greatly reduced, the bearing capacity at blade tenon position can also be effectively ensured,
There is very important engineering application value to aero-engine loss of weight synergy.
As shown in figure 3, the outside of tenon core 25 is with recessed with what the fiber yarn for being easy to clad 30 wound
Groove 35, groove 35 are substantially consistent with the winding direction of fiber yarn, and groove 35 can strengthen tenon core 25
With the connection reliability between clad 30.In a preferred embodiment, in the metal package of tenon core 25
Face 40 provides the roughness of the fiber yarn winding for being suitable for clad 30, for example with being not less than 120 purposes
Alumina balls carry out blasting treatment, to ensure that outer metallic surface 40 is cleaned, while tentatively possessing certain roughness.
In a preferred embodiment, the surface roughness of outer metallic surface 40 is controlled more than 6.3 microns, to ensure tenon
35 severity control of groove for having enough frictional force, tenon core 25 between head core and outer cladding layer 30 exists
Between 0.5～1mm, between 1～2mm, the surface roughness of groove 35 is also controlled at least width control system
6.3 more than.
In combination with Fig. 4 to Fig. 7, in an embodiment of the invention, the preparation method of fan blade includes：
Step one, there is provided tenon core 25, tenon core 25 is metal material, preferably titanium alloy material, tenon
The processing method of head core 25 can first forge base substrate, then base substrate is machined, subsequently using corresponding heat
Process to improve the hardness of tenon core 25 while eliminating issuable machining deformation, then can also be to tenon
Core 25 is surface-treated, and surface treatment includes blasting treatment, to obtain suitable roughness.
The method also includes step 2, as shown in figure 4, weave on looms that the fiber preform of blade body 15 is made,
The fiber yarn of sufficient length is reserved in weaving process on the creel 45 of loom, to ensure having sufficient length
Fiber yarn for 25 voluble wrapping of tenon core, loom can select three-dimensional loom to carry out 3 D weaving, or
Person's two-dimensional loom carries out 3 D weaving, and Fig. 4 schematically show only the essential structure of loom, it include opening,
Wefting insertion, beating, the warp let-off, the device such as batch, in Fig. 4, only show the device that will be described to, loom can be with
On the basis of existing loom, slightly transformation is formed, therefore the concrete composition for loom is with operation principle here not
Repeat.
The method also includes step 3, before the fiber preform of blade body 15 is completed or when being nearly completed,
Suspend weaving, on the bracing frame 70 that tenon core 25 is fixed on the workbench 55 of loom, then in tenon
Region forms the precast body of the fabric clad 30 on the outside of tenon core 25, forms the prefabricated of clad 30
The method of body includes but is not limited to control of two-dimensional braided method.The step of forming the precast body of clad 30 can be with formation leaf
The step of piece body 15, is carried out simultaneously.With reference to Fig. 4 and Fig. 6, enable on the table a shedding motion 80,
Weft inserting device 85, each side enables a beating device 90 in support 70, by controlling shedding motion 80
By warp thread pull-up about 96, while controlling 85 setting in motion of Weft inserting device, introduce in the both sides of tenon core 25
Weft yarn 95 (as shown in Figure 7), subsequently control 90 beginning action of beating device, by weft yarn 95 and tenon core
25 is urgent, so as to form the precast body of the clad 20 on the outside of cladding tenon core 25 in tenon region.One
In individual embodiment, when the precast body of clad 30 is formed, loom draws dimension device 60 by control, alternately controls
Brown frame 65, controls the proper motion of original yarn.Shedding motion 80, Weft inserting device 85, beating device 90 can
Arranged with increasing newly on the basis of existing loom, for shedding motion 80, the wefting insertion dress that different looms is increased newly
The species for putting 85, beating device 90 can be correspondingly difference.
The method also includes step 4, finally, obtains the whole precast body of the fan blade of weaving, by multiple
The moulding process of resin material obtains fiber-reinforced resin matrix compound material blade, and the moulding process includes but do not limit
In RTM moulding process.For RTM moulding process, the precast body of fan blade is adopted into the side of prestress
Formula carries out pre torqued, to ensure that its planform is effectively fitted with RTM moulds, and meets RTM shapings
The precast body of the fan blade through pre torqued is put into RTM moulds, by RTM by the requirement of technique
Moulding process obtains carbon fiber enhancement resin base composite material blade.RTM moulding process includes irrigating resin to mould
Tool, then heating, cure under pressure shaping, specific technological parameter can be with reference to the resin system selected with reference to existing
RTM moulding process select, subsequently by profiled member naturally cool to after room temperature mold, fiber reinforcement tree is obtained
Resin-based composite blade 10.
In previous embodiment, the tenon core of fan blade is prepared using metal material, then again by itself and composite wood
The blade body of material is connected as one, and it is polymer matrix composites to form a kind of blade body, and blade root is metal tenon
Mixed structure fan blade.This blade while tenon position load-carrying properties are met, also with clearly
Loss of weight advantage.Existing Joining Technology is not met by the bonding strength of composite blade and metal material tenon
Problem.Traditional welding procedure is mainly used in metal material and directly connects, and inapplicable and metal material and resin
The connection of based composites；Although cementation process can solve the connection of metal material and polymer matrix composites,
Carry as the blade of fan blade bears down huge centrifugal force, aerodynamic force in working order with tenon join domain
Lotus, while also subject to combined loads such as vibration stress, compression, loading conditions are complicated, and current cementation process is also
The bonding strength demand of aforementioned mixed structure fan blade can not be met.Previous embodiment make full use of metal material with
The respective advantage of composite, solves metal material and polymer matrix composites connectivity problem, it is ensured that blade body
With the structural continuity of tenon, overcome that traditional adhesive technology and welding procedure foreign material boundary strength are not enough to ask
Topic.
Although the present invention is disclosed as above with preferred embodiment, which is not for limiting the present invention, any this area
Technical staff without departing from the spirit and scope of the present invention, can make possible variation and modification.Therefore,
Every content without departing from technical solution of the present invention, according to appointing that the technical spirit of the present invention is made to above example
What modification, equivalent variations and modification, each falls within the protection domain defined by the claims in the present invention.
Claims (10)
1. fan blade, including blade body and tenon, it is characterised in that the tenon include tenon core and
Clad, the outside of the tenon core are coated by the clad, and the tenon core is metal material, described
Clad and the blade body are made up of continuous fiber-reinforced resin matrix compound material.
2. fan blade as claimed in claim 1, it is characterised in that the corner of the cross section of the tenon core
For arc structure.
3. fan blade as claimed in claim 1, it is characterised in that on the outside of the core of the tenon with
The groove for being easy to the fiber yarn of the clad to wind.
4. fan blade as claimed in claim 1, it is characterised in that have on the outside of the core of the tenon suitable
Together in the roughness that the fiber yarn of the clad winds.
5. the preparation method of fan blade, the fan blade include blade body and tenon, it is characterised in that bag
Include
Step one, there is provided tenon core, the tenon core are metal material；
Step 2, weaves on looms and makes the fiber preform of the blade body, in weaving process loom yarn
The fiber yarn of sufficient length is reserved on frame, to ensure the fiber yarn for having sufficient length for the tenon core
Voluble wrapping；
Step 3, suspends weaving, the tenon core is fixed on the bracing frame on the workbench of the loom,
Then the precast body of the clad on the outside of the cladding tenon core is woven in tenon region；
Step 4, obtains the precast body of the whole fan blade of weaving, by the shaping work of composite resin material
Skill obtains fiber-reinforced resin matrix compound material blade.
6. preparation method as claimed in claim 5, it is characterised in that in the step 3, in the work
Make on platform, to enable shedding motion, a Weft inserting device, a beating device is each side enabled in support frame as described above,
By controlling the shedding motion by warp thread upper and lower pull-up, while Weft inserting device setting in motion is controlled, in the tenon
The both sides of core introduce weft yarn, and subsequently control beating device starts action, and the weft yarn is beaten with the tenon core
Tightly, so as to forming the precast body of the clad in tenon region.
7. preparation method as claimed in claim 5, it is characterised in that in the step one, the tenon
Core on the outside of with the groove for being easy to the fiber yarn of the clad to wind.
8. preparation method as claimed in claim 5, it is characterised in that in the step one, the tenon
Core on the outside of have be suitable for the clad fiber yarn winding roughness.
9. preparation method as claimed in claim 5, it is characterised in that in the step 3, the tenon core
The corner of the cross section in portion is arc structure.
10. preparation method as claimed in claim 5, it is characterised in that in the step 4, by fan
The precast body of blade carries out pre torqued by the way of prestress, to ensure its planform and RTM shaping moulds
Fit with effect, and meet the requirement of RTM moulding process, the precast body of the fan blade through pre torqued is put
Enter RTM moulds, the fiber-reinforced resin matrix compound material blade is obtained by RTM moulding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578381.6A CN106523430B (en) | 2015-09-11 | 2015-09-11 | Fan blade and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578381.6A CN106523430B (en) | 2015-09-11 | 2015-09-11 | Fan blade and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106523430A true CN106523430A (en) | 2017-03-22 |
| CN106523430B CN106523430B (en) | 2019-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344887A (en) * | 2018-04-03 | 2019-10-18 | 中国航发商用航空发动机有限责任公司 | Mixing material fan blade and preparation method thereof |
| CN111156196A (en) * | 2020-01-10 | 2020-05-15 | 中国航空制造技术研究院 | Rotor blade structure of fan/compressor of aircraft engine and design method thereof |
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| CN1951664A (en) * | 2005-10-21 | 2007-04-25 | 斯奈克玛 | Manufacturing process of a composite turbine blade and the blade obtained thereby |
| WO2010149141A2 (en) * | 2009-06-25 | 2010-12-29 | Mtu Aero Engines Gmbh | Method for producing and/or repairing a blade for a turbo-machine |
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| CN102256773A (en) * | 2008-12-18 | 2011-11-23 | 斯奈克玛 | Method for manufacturing a turbine engine vane |
| CN103124606A (en) * | 2010-09-28 | 2013-05-29 | 斯奈克玛 | Method for producing a part and solid composite part produced by said method |
| US20140044549A1 (en) * | 2012-08-10 | 2014-02-13 | MTU Aero Engines AG | Ductile compensation layer for brittle components |
| CN104791200A (en) * | 2015-03-26 | 2015-07-22 | 北京勤达远致新材料科技股份有限公司 | Intelligent three-dimensional braided hybrid fibrous composite wind power blade and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4921405A (en) * | 1988-11-10 | 1990-05-01 | Allied-Signal Inc. | Dual structure turbine blade |
| CN1951664A (en) * | 2005-10-21 | 2007-04-25 | 斯奈克玛 | Manufacturing process of a composite turbine blade and the blade obtained thereby |
| CN102232020A (en) * | 2008-11-28 | 2011-11-02 | 斯奈克玛动力部件公司 | Composite material turbine engine vane, and method for manufacturing same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344887A (en) * | 2018-04-03 | 2019-10-18 | 中国航发商用航空发动机有限责任公司 | Mixing material fan blade and preparation method thereof |
| CN110344887B (en) * | 2018-04-03 | 2022-02-18 | 中国航发商用航空发动机有限责任公司 | Mixed material fan blade and preparation method thereof |
| CN111156196A (en) * | 2020-01-10 | 2020-05-15 | 中国航空制造技术研究院 | Rotor blade structure of fan/compressor of aircraft engine and design method thereof |
| CN111156196B (en) * | 2020-01-10 | 2021-10-29 | 中国航空制造技术研究院 | Rotor blade structure of fan/compressor of aircraft engine and design method thereof |
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| Publication number | Publication date |
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| CN106523430B (en) | 2019-07-09 |
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Address after: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Applicant after: China Hangfa commercial aviation engine limited liability company Address before: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Applicant before: AVIC Commercial Aircraft Engine Co.,Ltd. |
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