CN115351514A - Manufacturing method of aluminum alloy ribbed wallboard - Google Patents
Manufacturing method of aluminum alloy ribbed wallboard Download PDFInfo
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- CN115351514A CN115351514A CN202211125395.9A CN202211125395A CN115351514A CN 115351514 A CN115351514 A CN 115351514A CN 202211125395 A CN202211125395 A CN 202211125395A CN 115351514 A CN115351514 A CN 115351514A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 51
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 50
- 238000003466 welding Methods 0.000 claims abstract description 91
- 238000000034 method Methods 0.000 claims abstract description 53
- 238000003756 stirring Methods 0.000 claims abstract description 45
- 239000000843 powder Substances 0.000 claims abstract description 27
- 238000005507 spraying Methods 0.000 claims abstract description 22
- 239000000956 alloy Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 17
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 16
- 238000010288 cold spraying Methods 0.000 claims abstract description 15
- 230000003068 static effect Effects 0.000 claims description 14
- 230000004048 modification Effects 0.000 claims description 13
- 238000012986 modification Methods 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 238000005429 filling process Methods 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000013585 weight reducing agent Substances 0.000 abstract 1
- 238000000151 deposition Methods 0.000 description 11
- 230000008021 deposition Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
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- 229910001148 Al-Li alloy Inorganic materials 0.000 description 4
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 4
- 239000001989 lithium alloy Substances 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
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- 230000003044 adaptive effect Effects 0.000 description 2
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- 230000001360 synchronised effect Effects 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 229910000542 Sc alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- -1 aluminum-magnesium-scandium Chemical compound 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/01—Aircraft parts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to a method for manufacturing an aluminum alloy ribbed wallboard, which is a method for manufacturing an aluminum alloy ribbed wallboard by welding skin and a rib plate which are configured into a T shape, and comprises the following steps: a plate assembling procedure, namely assembling the rib plate on the skin in a T shape; a filling procedure, namely, taking alloy powder as a filling material, and spraying the alloy powder on the corner joint area formed by assembling the rib plate and the skin in a reciprocating manner by adopting cold spraying; and a welding process, namely after the filling process is completed, sequentially welding the rib plate and the spraying areas on the two sides of the skin by using single-head friction stir welding, or simultaneously completing welding from the spraying areas on the two sides by using double-head friction stir welding, and the method aims to solve the problems of material shortage and brought defects and stress concentration of the right-angle transition area of the high-strength aluminum alloy T-shaped joint, reduce the raw material cost and the machining cost, improve the production efficiency and meet the production and manufacturing requirements of weight reduction and reinforcement of the ribbed wallboard.
Description
Technical Field
The invention relates to the technical field of composite manufacturing, in particular to a manufacturing method of an aluminum alloy ribbed wallboard.
Background
The aluminum alloy ribbed wallboard is an important structural component of an aircraft, and the used aluminum alloy materials gradually develop towards high strength and low density, and high-strength aluminum alloys such as 2024 and 7055 and high-strength and low-density aluminum-lithium alloys such as 2A97 and 2195 appear. At present, the aluminum alloy ribbed wallboard is manufactured mainly by adopting modes of machining, riveting, laser welding and the like in industrial production, a wire filling friction stir welding technology based on static shaft shoulder friction stir welding is developed in a laboratory, and the above production and manufacturing methods have advantages and limitations in use.
The machined integral wallboard is formed into the stud in a mode of reducing materials on a thick plate layer by layer and area by area, and has the advantages that the integral wallboard has no abrupt change of tissues and excellent comprehensive performance, and the short plate has low material utilization rate, long processing time and high processing cost. Traditional riveting in aerospace equipment has long been examined. The riveted joint has high connection strength, fatigue resistance and easy replacement, but the number of the used rivets is large, and the weight of the structure is increased obviously.
Patent CN 110293315A proposes a double-side laser welding method for a T-shaped joint of a large aircraft rib panel. Compared with riveting manufacturing, the double-side laser synchronous welding can greatly reduce the weight of workpieces and improve the production efficiency. The technology has obvious advantages in welding the titanium alloy ribbed wallboard. However, the high-strength aluminum alloy has good thermal conductivity, large linear expansion coefficient and easy surface oxidation to form a high-melting-point and high-density aluminum oxide film, so that melting/solidification defects such as air holes, slag inclusion, incomplete fusion and the like inevitably occur in a fusion welding joint. The problems of element ablation and the like are easy to occur during fusion welding of the aluminum-lithium alloy.
Patent CN 109202271A provides a static shaft shoulder wire filling friction stir welding device and a fillet weld additive manufacturing method. By integrating the welding system and the wire filling system on the main shaft of the device, the synchronous feeding and welding of fillet welds are realized, and the problems of material shortage and stress concentration in a rib plate/skin transition area are solved. The static shaft shoulder friction stir welding belongs to solid phase welding, the temperature is lower than the melting point of the material, and the problems of element segregation, ablation and the like are effectively avoided. However, the aluminum alloy wire has a small diameter, so that the phenomena of wire feeding difficulty and wire breakage are easily caused under the action of a shaft shoulder lateral force and a main shaft tangential force, and the continuous and stable manufacture of the large-size ribbed wallboard is difficult to realize.
Disclosure of Invention
The invention mainly aims at the problems and provides a manufacturing method of an aluminum alloy ribbed wallboard, which aims to realize high-quality, high-efficiency and low-cost production and manufacture of the aluminum alloy ribbed wallboard.
In order to achieve the above object, the present invention provides a method for manufacturing an aluminum alloy ribbed panel by welding a skin and a rib plate arranged in a T-shape, comprising:
a plate assembling procedure, namely assembling the rib plate on the skin in a T shape;
a filling process, namely, alloy powder is taken as a filling material, and the alloy powder is sprayed on the corner joint area formed by assembling the rib plate and the skin in a reciprocating manner by cold spraying;
and a welding procedure, namely after the filling procedure is completed, sequentially welding the rib plate and the spraying areas on the two sides of the skin by using single-head friction stir welding, or simultaneously completing welding from the spraying areas on the two sides by using double-head friction stir welding.
Further, before the plate material assembling process, the method further comprises the following steps: and in the pretreatment process, an auxiliary tool is used for napping in the areas to be sprayed of the rib plates and the skin.
Further, in the plate assembling process, the step of assembling the rib plate on the skin in a T shape includes: and vertically clamping the rib plate in a T shape in the middle of the napping area of the skin, and applying three-dimensional rigid support to the rib plate.
Further, after the filling process, the method further comprises: and a shape modification step, namely performing shape modification treatment on the spraying area after the alloy powder is sprayed in a reciprocating manner, so that the cross section shape of the spraying area is kept consistent.
Further, after the welding process, the method further comprises the following steps: and a modification procedure, namely spraying a pure aluminum or aluminum alloy layer on the surface of the welding seam area by using a cold spraying device after welding.
Further, in the filling procedure, the cross section of the angular region to which the alloy powder is sprayed in a reciprocating manner is not less than the volume of a cavity formed by the static shaft shoulder, the skin and the rib plate in the single-head friction stir welding or the double-head friction stir welding.
Furthermore, in the welding process, the profile of the stirring pin of the single-head friction stir welding or the double-head friction stir welding needs to exceed the thickness center line of the rib plate.
Further, the alloy powder is composite aluminum powder doped with one or more of alumina particles, graphene and carbon nanotubes with different brands.
Further, the particle size of the alloy powder is 20-100 μm; the powder feeding speed is 50g/min, and the powder feeding distance is 30mm.
Furthermore, the rotating speed of the stirring pin of the single-head stirring friction welding or the double-head stirring friction welding is 300-800 rpm, and the welding speed is 100-300 mm/min.
The technical scheme of the invention has the following advantages: powder is deposited in a right-angle transition area in a cold spraying mode, continuous, stable and gapless filling of materials is achieved, severe plastic deformation of a deposition layer is achieved through static shaft shoulder friction stir welding, tissue densification is achieved, high-quality connection between a rib plate and a skin is achieved, the problems of air holes, element ablation, element segregation and the like caused by fusion welding are effectively avoided, and meanwhile the requirement of assembly gaps is lowered.
Drawings
FIG. 1 is a flow chart of a method for manufacturing an aluminum alloy ribbed panel according to the present invention;
FIG. 2 is a schematic diagram of a pretreatment process flow disclosed in the present invention.
Fig. 3 is a schematic structural diagram of a sheet assembly process according to the disclosure.
Fig. 4 is a schematic structural diagram of a filling process flow disclosed in the present invention.
FIG. 5 is a schematic view of a single side single head friction stir weld in a welding process flow according to the present disclosure.
FIG. 6 is a schematic view of a dual-head friction stir welding configuration for simultaneous welding from two sides, in accordance with the present disclosure.
FIG. 7 is a structural diagram of a stir pin in single-head friction stir welding according to the disclosure in a welding state at different angles.
Fig. 8 is a schematic structural view of a ribbed wallboard with a curved surface belt in a first structure according to the present disclosure.
Fig. 9 is a schematic structural view of a ribbed wallboard with a curved surface strip in a second structure according to the present invention.
Fig. 10 is a structural schematic diagram of a T-shaped ribbed wallboard shoulder adaptive optimization planar skin disclosed by the invention.
Fig. 11 is a structural schematic diagram of a T-shaped ribbed wallboard shoulder adaptive optimization curved skin disclosed by the invention.
In the figure: 1. covering a skin; 2. a rib plate; 3. a napping area; 4. a spray gun; 5. depositing a layer; 6. single-head friction stir welding; 7. double-head friction stir welding; 8. t-shaped longitudinal ribs; 9. i type ring rib; 6a, a stirring pin; 6b and a static shaft shoulder.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In one aspect of the invention, a method of manufacturing an aluminum alloy ribbed panel is provided. The aluminum alloy ribbed wallboard prepared by the preparation method has the physical and chemical properties of high toughness, low manufacturing cost, high manufacturing process flexibility and high material utilization rate.
In the method, local modification can be realized by spraying a dissimilar material with a different component from that of the skin rib plate, the comprehensive performance of the joint is further improved, and a process foundation and a technical support are laid for the production and manufacture of high-strength aluminum alloy ribbed wallboard with poor fusion welding performance such as aerospace aluminum-magnesium-scandium alloy and the like. The method can meet the requirement of the large curved surface ribbed wallboard filler, and has the advantages of high utilization rate of cold spraying materials, high spraying efficiency and strong adaptability. And because the aluminum alloy ribbed wallboard manufactured by the method can effectively avoid the problem of element ablation, and the high-strength aluminum alloy such as 2XXX, 7XXX, aluminum lithium alloy and the like can be prepared for the conventional melting additive manufacturing. In addition, the technology can be popularized and applied to the manufacturing of aluminum alloy ribbed wallboard structures in the fields of ships, automobiles and the like, and the aluminum alloy ribbed plate structure can be manufactured with high efficiency, high quality and low cost.
The method for producing an aluminum alloy ribbed panel according to the present invention will be described in detail below with reference to the drawings.
In fig. 1, reference numeral 1 denotes a skin constituting a T-shaped member, and the skin 1 has a flat plate shape or a curved surface shape. A rib plate 2 described later is assembled to the upper surface side of the skin 1.
The specific manufacturing method comprises four steps:
1) A pretreatment procedure: the method has the advantages that tools such as a galling machine and abrasive paper are used for galling the areas to be sprayed of the rib plates 2 and the skins 1, powder deposition rate is improved during cold spraying, and aluminum clad layers on the surfaces of aluminum plates are prevented from entering welding seams to affect performance of joints.
2) Plate assembling process: the rib plate 2 is vertically clamped in the middle of a napping area 3 of the skin, and three-way rigid support is applied, namely in the direction indicated by an arrow shown in figure 3, so that the rib plate 2 is prevented from being displaced or vibrated during spraying to cause incapability of spraying or low powder deposition rate.
3) Filling: as shown in fig. 4, alloy powder is sprayed to the corner joint area repeatedly in a reciprocating manner by using a spray gun 4, a deposition layer 5 is formed in the corner joint area, and the cross section of the spraying area is not less than the volume of a cavity formed by the static shaft shoulder 6b, the skin 1 and the rib plate 2. The cold spraying can effectively solve the problem of material shortage in the transition area of the corner joint, and eliminate the assembly gap between the skin 1 and the rib plate 2.
The alloy powder is used for further enhancing the comprehensive performance of a welding seam area, and in the cold spraying of one embodiment, composite aluminum powder doped with alumina particles, graphene, carbon nanotubes and other materials with different brands is used for spraying, but not limited to.
4) And (5) a shape modification process, namely after the cold spraying is finished, in order to avoid the fracture caused by different advancing resistances in the welding process of the irregular deposition layer 5, the cross section shape can be kept consistent through shape modification.
5) A welding procedure: as shown in fig. 5 and 6, the rib 2 and the skin 1 are welded in sequence on both sides of the joint (i.e., the deposition layers 5 on both sides) using single-head friction stir welding 6, or simultaneously from both sides using dual-head friction stir welding 7.
In the one-sided welding, it is required to ensure that the profile of the stir pin 6a of the single-head friction stir welding 6 exceeds the thickness center line L of the rib plate 2, as shown in fig. 7, where (a) is a case where the profile of the stir pin 6a does not exceed the thickness center line L of the rib plate 2, and (b) is a case where the profile of the stir pin exceeds the thickness center line L of the rib plate 2.
6) A modification procedure: after welding, a cold spraying device can be used for spraying a pure aluminum or aluminum alloy layer on the surface of a welding seam area, so that the surface modification of the welding seam is realized, and the performances of corrosion resistance, wear resistance and the like of the joint are improved.
In the method for preparing the aluminum alloy ribbed wallboard in the embodiment, aiming at fillet welding of the static shaft shoulders of different aluminum alloys, the scheme can be further optimized: during welding, the static shaft shoulder structure can be optimized except for welding at the rotating speed of below 2000rpm, the rotating speed is greatly increased to be above 10000rpm, and the main shaft torque, the welding axial force and the energy consumption are expected to be greatly reduced; in addition, as shown in fig. 8 and 9, the curved ribbed wall plate with the T-shaped longitudinal ribs 8 and the i-shaped annular ribs 9 are welded, wherein the planar welding and the curved welding can be realized through the adaptability optimization improvement of the static shaft shoulder as shown in fig. 10 and 11.
In the method for preparing the aluminum alloy ribbed wallboard in the embodiment, the cold spraying and fillet welding static shoulder friction stir composite welding manufacturing technology is combined with the advantages of cold spraying and static shoulder friction stir fillet welding, high-efficiency and low-cost manufacturing of the high-strength aluminum alloy ribbed wallboard structure of the aircraft can be realized, the manufacturing process flexibility is high, the material utilization rate is high, the joint toughness is high, and the method has good application prospects in the structures of ribbed wallboards of the aircraft and the like. For high-strength aluminum alloys such as 2XXX, 7XXX, aluminum lithium alloys and the like which are difficult to prepare by conventional melting additive manufacturing, the technology can effectively avoid the problem of element ablation and improve the comprehensive performance of the joint. Based on design optimization, the production and the manufacture of the complex curved surface ribbed wallboard can be realized, and the problem that the conventional manufacturing process is difficult to manufacture or the manufacturing cost is overhigh is solved. In addition, the technology can be popularized and applied to the manufacturing of aluminum alloy ribbed wallboard structures in the fields of ships, automobiles and the like, and the aluminum alloy ribbed plate structure can be manufactured with high efficiency, high quality and low cost.
The following examples are presented to further illustrate the nature of the invention. It is to be understood that the invention is not to be limited to the specific conditions or details set forth in these examples except insofar as such limitations are specified in the appended claims.
The plate used in the test is 2A12-T4 aluminum alloy with an aluminum layer. Wherein, the size of the skin 1 is 300 multiplied by 2mm, and the size of the rib plate 2 is 300 multiplied by 20 multiplied by 2mm. Firstly, a 300 × 20mm area in the middle of the skin 1 is napped by using a napping machine, and 300 × 10mm areas on two sides of a welding area of the rib plate 2 are napped. And then, applying three-dimensional rigid support to the skin 1 and the rib plate 2 by using a special tool. 2A12 aluminum alloy powder with the granularity of about 20-100 mu m is adopted to carry out cold spraying treatment on the area to be welded, the powder feeding speed is 50g/min, and the powder feeding distance is 30mm. After multi-pass reciprocating spraying, a deposition layer 5 with the cross section of more than 3 multiplied by 3mm is formed in the fillet welding area of the plate. And after the deposition is finished, rotating the workpiece by 180 degrees to finish the deposition on the other side. And finally, finishing welding by using a fillet weld static shaft shoulder friction stir welding head. During welding, the stirring pin 6a is driven by the stirring friction welding head to rotate, and the shaft shoulder 6b applies upsetting force to the plate and the deposition area. The rotating speed of the stirring pin 6a is 300-800 rpm, and the welding speed is 100-300 mm/min. The shaft shoulder 6b moves on the surface of the plate along a preset track, redundant powder particles are scraped by the front end of the shaft shoulder 6b, and redundant plastic materials are discharged through a discharge hole at the rear end of the shaft shoulder 6 b. And after the welding machine is finished on one side, rotating the workpiece to start welding on the other side, and finally realizing the welding manufacture of the ribbed wallboard.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A manufacturing method of an aluminum alloy ribbed wallboard, which is a manufacturing method of an aluminum alloy ribbed wallboard formed by welding a skin and a rib plate which are configured into a T shape, is characterized by comprising the following steps:
a plate assembling procedure, namely assembling the rib plate on the skin in a T shape;
a filling procedure, namely, taking alloy powder as a filling material, and spraying the alloy powder on the corner joint area formed by assembling the rib plate and the skin in a reciprocating manner by adopting cold spraying;
and a welding procedure, namely after the filling procedure is completed, sequentially welding the rib plate and the spraying areas on the two sides of the skin by using single-head friction stir welding, or simultaneously completing welding from the spraying areas on the two sides by using double-head friction stir welding.
2. The method of manufacturing an aluminum alloy ribbed panel as set forth in claim 1, further including, before the panel assembling step: and in the pretreatment process, an auxiliary tool is used for napping in the areas to be sprayed of the rib plates and the skin.
3. The method for manufacturing an aluminum alloy ribbed panel according to claim 2, wherein the step of assembling the rib to the skin in a T-shape in a panel assembling process includes: and vertically clamping the rib plate in a T shape in the middle of the napping area of the skin, and applying three-dimensional rigid support to the rib plate.
4. The method of manufacturing an aluminum alloy ribbed panel as set forth in claim 1, further including, after the filling step: and a shape modification step, namely performing shape modification treatment on the spraying area after the alloy powder is sprayed in a reciprocating manner, so that the cross section shape of the spraying area is kept consistent.
5. The method of manufacturing an aluminum alloy ribbed panel as set forth in claim 1, further including, after the welding step: and a modification procedure, namely spraying a pure aluminum or aluminum alloy layer on the surface of the weld joint area by using a cold spraying device.
6. The method for manufacturing the aluminum alloy ribbed wallboard according to claim 1, wherein in the filling procedure, the cross section of the corner area to which the alloy powder is sprayed in a reciprocating manner is not less than the cavity volume formed by the static shaft shoulder, the skin and the rib plate of the single-head friction stir welding or the double-head friction stir welding.
7. The manufacturing method of the aluminum alloy ribbed panel according to claim 1, characterized in that in the welding process, the profile of the stirring pin of the single-head friction stir welding or the double-head friction stir welding is required to exceed the thickness center line of the rib plate.
8. The method for manufacturing the aluminum alloy ribbed wallboard according to claim 1, wherein the alloy powder is composite aluminum powder doped with one or more of alumina particles, graphene and carbon nanotubes with different brands.
9. The method of manufacturing an aluminum alloy ribbed panel according to claim 1 wherein the particle size of the alloy powder is 20 to 100 μm; the powder feeding speed is 50g/min, and the powder feeding distance is 30mm.
10. The method for manufacturing an aluminum alloy ribbed wallboard according to claim 1, wherein the pin rotation speed of the single-head friction stir welding or the double-head friction stir welding is 300-800 rpm, and the welding speed is 100-300 mm/min.
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| CN108372358A (en) * | 2016-12-20 | 2018-08-07 | 中国航空工业集团公司北京航空制造工程研究所 | A kind of band muscle wall panel structure dead axle shoulder friction stir weld device and friction welding method |
| CN108385101A (en) * | 2018-02-27 | 2018-08-10 | 北京宇航系统工程研究所 | A kind of online cold spraying protection of stir friction welding seam and enhancing technology |
| CN108817651A (en) * | 2018-09-06 | 2018-11-16 | 合肥工业大学 | A kind of aluminium alloy plate welding method |
| CN108994442A (en) * | 2018-09-17 | 2018-12-14 | 北京石油化工学院 | A kind of friction stir welding method of aluminum/steel dissimilar material connection |
| CN109881138A (en) * | 2019-03-13 | 2019-06-14 | 罗远新 | A kind of protective coating construction technology |
| CN114871700A (en) * | 2022-05-27 | 2022-08-09 | 北京航星机器制造有限公司 | Aluminum alloy/aluminum lithium alloy hollow reinforcing rib skin forming method and mold |
| CN115009503A (en) * | 2022-07-25 | 2022-09-06 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Airtight frame of aircraft nose adds muscle web overall structure |
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