Summary of the invention
The purpose of the present invention is to provide a kind of plate repair method, can make to repair in the case where not increasing panel weightPlate intensity with higher after reason.
According to an aspect of the present invention, a kind of plate repair method is provided, comprising: remove the pars affecta of the plate withForm filled cavity；The filled and process aluminum material in the filled cavity.
In a kind of exemplary embodiment of the disclosure, filled and process aluminum material includes: that offer is filled out in the filled cavityPart is filled, the filling member is foamed aluminium material, and is matched with the shape of the filled cavity；The filled cavity inner surface withThe outer surface coated with adhesive of the filling member；The filling member is bonded in the filled cavity.
In a kind of exemplary embodiment of the disclosure, the plate includes the first panel and second panel of face settingAnd the sandwich body between the first panel and the second panel, the filled cavity packet is formed in plate repair methodIt includes: determining the pars affecta position；Region in the first panel corresponding to the pars affecta position opens up access opening, withForm filled cavity；Wherein, the access opening extends to the second panel close to the side of the sandwich body.
In a kind of exemplary embodiment of the disclosure, the plate repair method further include: patch is provided；Make the patchPiece covers the access opening.
In a kind of exemplary embodiment of the disclosure, the patch includes: lid, is abutted against remote in the first panelSide from sandwich body；Insert, set on the lid close to the side of the sandwich body, the insert is embedded in the channelHole, and match with shape of the access opening in the panel.
In a kind of exemplary embodiment of the disclosure, the insert is in a circular table shape.
In a kind of exemplary embodiment of the disclosure, the ratio of the height and bus of the insert is less than
In a kind of exemplary embodiment of the disclosure, side of the lid far from the sandwich body is cambered surface.
In a kind of exemplary embodiment of the disclosure, the material of the patch is identical as the material of the first panel.
In a kind of exemplary embodiment of the disclosure, the contact surface of the patch and the access opening is coated with bondingAgent.
The beneficial effect of the present invention compared with prior art is: method disclosed by the invention replaces plate with foamed aluminium materialPars affecta, on the one hand, due to foamed aluminium material intensity with higher and lesser density, which is existedMake the plate intensity with higher after repairing in the case where not increasing panel weight；On the other hand, foamed aluminium material can designProperty it is strong, by controlling the parameters such as density, the coefficient of expansion, pore size, through-hole rate of foamed aluminium material, be adapted to various materialsThe repairing requirement of plate.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, notIt can the limitation present invention.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapesFormula is implemented, and is not understood as limited to example set forth herein；On the contrary, these embodiments are provided so that the disclosure will comprehensively andCompletely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Described feature, structure or characteristicIt can be incorporated in any suitable manner in one or more embodiments.In the following description, it provides many specific thinSection fully understands embodiment of the present disclosure to provide.It will be appreciated, however, by one skilled in the art that this can be practicedDisclosed technical solution, or can be using other methods etc. without one or more in the specific detail.At itIn the case of it, known solution is not shown in detail or described to avoid fuzzy all aspects of this disclosure.
Term " one ", "the", " described " and "at least one" to indicate there are one or more elements/component part/Deng；Term " comprising " and " having " is to indicate the open meaning being included and refer to element/group in addition to listingAt part/wait except also may be present other element/component part/etc..
Plate is especially the plate with sandwich, is easy to happen damage in manufacture, processing and in, influencesThe normal use of structure will cause waste economically if it find that structure is just replaced in the presence of damage, thus it is necessary to rightThe plate of damage takes certain technology to carry out damage repair.According to the structure of plate, the type and size of damage, using differentRepair method, it is most common include resin injection, resin infusion and filling, mechanical connection patch, subsidize with digging etc..It subsidizes,It is difficult to obtain ideal aerodynamic configuration, antistripping ability is poor, is suitable for not too important component, relatively thin laminate, is limited by back side channelThe inconvenient component for using other repair methods of system.Digging, it is similar to subsidizing, and the material of first drilling removal damaged part, butUnlike, what is bored is to have the hole of certain taper and then use adhesive that matched pieces of cloth bonding up, is generally used for repairingThere is the component of stringent shape requirement, repairing effect is more preferable, and application is more extensive.
Disclosure embodiment provides a kind of plate repair method, as shown in Figure 1, the plate repair method may includeStep S11 and step S12.Wherein:
Step S11, the pars affecta of the plate is removed to form filled cavity.
Step S12, the filled and process aluminum material in the filled cavity.
Disclosure embodiment is with the pars affecta of foamed aluminium material replacement plate, on the one hand, since foamed aluminium material hasHigher intensity and lesser density enable the repair method to make the plate after repairing in the case where not increasing panel weightMaterial intensity with higher；On the other hand, foamed aluminium material designability is strong, by the density, the expansion that control foamed aluminium materialThe parameters such as coefficient, pore size, through-hole rate are adapted to the repairing requirement of various material plates；Another aspect, reduces plateThe number replaced by damage reduces waste economically.
In the following, will be to being further detailed the step of plate repair method in disclosure embodiment.
Step S11, the pars affecta of the plate is removed to form filled cavity.
In one embodiment, which can be individual panel construction or sandwich.Using plate as interlayer knotFor structure, as shown in Figure 5 and Figure 6, which includes the first panel 4 of face setting and second panel 8 and is located at theSandwich body 6 between one panel 4 and second panel 8.Wherein, the first panel 4 and second panel 8 prepared by identical material andAt the material can be for example carbon fiber or glass reinforced plastic, and so as to intensity with higher, certainly, material can also be otherMaterial with higher-strength, will not enumerate herein.In addition, the sandwich body 6 can be cellular sandwich body, more specifically,The sandwich body 6 is aluminum honeycomb sandwich body, but the sandwich body 6 in disclosure embodiment is without being limited thereto.In addition, the sandwich is alsoIt may include the first glue-line 5 between first panel 4 and sandwich body 6, and between second panel 8 and sandwich body 6Two glue-lines 9.
In one embodiment, which can be manufacture damage or impact injury.Wherein, manufacture damage can beIt is generated when machining and assembly, such as indentation, scratch or drilling are improper.The impact injury can be to be drawn by high energy impact eventsIt rises, such as bullet, non-inclusive engine debris, bird such as hit at the damage caused by the impact of exotics, can also be that low energy is rushedIt hits, such as is damaged caused by the shock of the maintenance preventions such as fork truck.
As shown in Fig. 2, the step S11 may include step S111 and step so that the plate is sandwich as an exampleS112.Wherein:
Step S111, the pars affecta position is determined.
In one embodiment, pars affecta method for determining position may include visual inspection, Liquid penetrant testing, ray detectionAt least one of with ultrasound examination.For example, pars affecta position is determined by ray detection.Wherein, ray is penetrated for XLine, and pass through the absorbability diversity judgement pars affecta position of detection pars affecta and not damaged army's ray.It is examined by X-rayIt surveys, not only can detecte out the face crack of sandwich, can also detect that the underbead crack that cannot visually reach.In addition,It can determine the range of pars affecta using the above method simultaneously when determining pars affecta position, and damage appearance is carried out to damaged structureLimit and Analysis Residual Strength, decide whether to place under repair based on the analysis results.
Step S112, as shown in Figure 5 and Figure 6, the region in the first panel 4 corresponding to the pars affecta position is openedIf access opening, to form filled cavity 1, wherein the access opening extends to the second panel 8 close to the one of the sandwich body 6Side.
The pars affecta of above-mentioned determination is removed by opening up access opening.In one embodiment, sandwich is fixed onThe microscope carrier of boring device corresponds to the periphery of the regional assignment access opening to be opened up of pars affecta position in first panel 4Line carries out bore operation using the drill bit being adapted to the outer peripheral lines size.In addition, to avoid bit breakage during bore operationTo second panel 8, to guarantee that the access opening extends to second panel 8 close to the side of sandwich body 6.In addition, forming access openingCleaning operation carried out to access opening afterwards, such as can be by with acetone flushing channel hole surface, it is, of course, also possible to using other polesThe stronger solvent of property.Disclosure embodiment does not enumerate herein.
Step S12, the filled and process aluminum material in the filled cavity.
Foamed aluminium is that after adding additives to pure aluminum or aluminum alloys, to be formed by foam process, have excellent insulationThe characteristics such as heat preservation, electromagnetic shielding, conductive, sound absorption energy-absorbing.When repairing plate using foamed aluminium, pass through control foamed aluminium materialAbove-mentioned characteristic can be such that the plate after repairing has the effect of new.In one embodiment, plate is to apply having electromagnetic shieldingIt is required that and sound absorption require device on, the plate after being repaired using foamed aluminium material can provide preferably electromagnetic shielding and it is sound absorption propertiesEnergy.In addition, the foamed aluminium material can be liquid or solid.For example, which is liquid, by by fluid bubbleFoam aluminum material is cast in filled cavity to complete filling operation.
By taking the sandwich containing cellular sandwich body as an example, in existing repair method other than 17# filler, it can also useNew cellular sandwich and low-viscosity compound are as packing material.Compared with new cellular sandwich and low-viscosity compound, foamed aluminum materialsMaterial, which has, preferably repairs effect, while meeting static strength required when sandwich damage repair, stability, durableProperty, rigidity, aerodynamic configuration, operating temperature, environment influence, weight and balance etc. require.
As shown in figure 3, the step S12 may include step S121, step S122 and step S123.Wherein:
Step S121, filling member is provided, the filling member is foamed aluminium material, and the shape phase with the filled cavityMatch.
In one embodiment, it by taking foamed aluminium material is solid as an example, by processing solid foam aluminum material, is formed and is somebody's turn to doThe filling member that the shape of filled cavity matches.Specifically, the filling member is also cylindrical when filled cavity is cylindrical, andIt is of the same size；When filled cavity is cone, which is the circular cone with identical size.Certainly, the filling memberIt can also be that other shapes, disclosure embodiment do not enumerate herein with filled cavity.In addition, the solid bubble that processing is selectedThe density of foam aluminum material and the density of plate are close.
Step S122, it as shown in Figure 5 and Figure 6, is applied in the outer surface of the inner surface of the filled cavity 1 and the filling member 3Cover binder 7.
In one embodiment, in the inner surface coated with adhesive 7 of the filled cavity 1, such as can be by way of sprayingIt realizes.In addition, in the outer surface coated with adhesive 7 of the filling member 3, such as can be by the way that filling member 3 is immersed liquid adhesive 7Middle realization.In addition, the binder 7 can effectively solidify at room temperature, can effectively connect filling member 3 and filled cavity 1, this is viscousTying agent 7 for example can be EA9396 glue.By the outer surface coated with adhesive 7 of inner surface and filling member 3 in filled cavity 1, increaseBig binding force between filling member 3 and filled cavity 1, improves plate to the resistivity of applied external force, enhances plateIntensity.
Step S123, as shown in Figure 5 and Figure 6, the filling member 3 is bonded in the filled cavity 1.
In one embodiment, by taking filling member 3 is cylindrical as an example, after filling member 3 is placed in filled cavity 1, rotary fillingPart 3 is filled, and moves up and down filling member 3 in filled cavity 1, the binder 7 of above-mentioned coating is enable to be uniformly distributed in filled cavity 1Inner surface further enhances plate to increase the binding force between filling member 3 and filled cavity 1 with 3 outer surface of filling memberIntensity.
As shown in figure 4, the plate repair method of another embodiment of the disclosure further includes step S13 and step S14.ItsIn:
Step S13, as shown in Figure 5 and Figure 6, patch 2 is provided.
In one embodiment, 2 material of patch is identical as the material of first panel 4, so that the plate after repairing hasThere is good homogenieity.In addition, the patch 2 may include lid 21 and insert 22.Wherein, lid 21 abuts against first panelFar from the side of sandwich body 6 on 4, for covering access opening.Side of the lid 21 far from sandwich body 6 is cambered surface, so as to repairPlate afterwards has good aerodynamic configuration when being used for aviation field.The lid 21 is plane close to the side of sandwich body 6, moreSpecifically, the plane is circular flat, and radius of the radius of the circular flat at least than the access opening in sandwich body 6 is big20mm, such as can be 22mm.In addition, the insert 22 is set to lid 21 close to the side of sandwich body 6, the insert 22 insertionAccess opening, and match with the shape of access opening in the panel.The shape of insert 22 for example can be to be round table-like, this is round table-likeThe ratio of the height and bus of insert is less thanSuch as can beOrBut round table-like insert 22 in disclosure embodimentHeight it is without being limited thereto with the ratio of bus.Insert 22 under the ratio can greatly improve the intensity of plate after repairing.
Step S14, the patch is made to cover the access opening.
It in one embodiment, should as shown in fig. 6, the surface that the patch 2 is used to cover access opening is coated with binder 7Binder 7 is identical as binder coated by 3 outer surface of filling member.By coating the binder 7, patch 2 and plate are enhancedBinding force, improve the antistripping ability of patch 2.In addition, needing to carry out binder 7 after patch 2 is covered access openingCuring process can solidify at room temperature, or use and be heating and curing.After solidification, outer surface processing is carried out to plate,Such as plate can be wiped, with clean surface.If former plate surface is equipped with coating, it is also desirable to carry out restoring coating workIndustry.In addition, repairing terminates to carry out inspection and evaluation to maintenance status.By taking honeycomb sandwich construction as an example, removes and damaged in sandwichHoneycomb to form filled cavity, repaired using foamed aluminium material as filling member, the bee by finite element analysis, after repairingThe recovery of nest sandwich intensity reaches 100%.
Those skilled in the art will readily occur to other embodiments of the present invention after considering specification and practice.ThisApplication is intended to cover any variations, uses, or adaptations of the invention, these variations, uses, or adaptations are abided byFollow general principle of the invention and including common knowledge or conventional techniques in the art.Description and embodimentsIt is considered only as illustratively, true scope and spirit of the invention are pointed out by the attached claims.