CN110143034B - Forming method of fiber-aluminum alloy composite material part - Google Patents
Forming method of fiber-aluminum alloy composite material part Download PDFInfo
- Publication number
- CN110143034B CN110143034B CN201910372262.3A CN201910372262A CN110143034B CN 110143034 B CN110143034 B CN 110143034B CN 201910372262 A CN201910372262 A CN 201910372262A CN 110143034 B CN110143034 B CN 110143034B
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- alloy plate
- fiber
- plate
- epoxy resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
Abstract
The application provides a forming process method of a fiber-aluminum alloy composite material part, which comprises the following steps: 1. cutting the aluminum alloy plate and the fiber cloth according to the shape of the part; 2. carrying out solid solution treatment on the aluminum alloy plate, immediately carrying out prepressing treatment on the aluminum alloy plate after solid solution treatment, uniformly distributing grid-shaped grooves on the surface of the aluminum alloy plate glued with fiber cloth, and then carrying out quenching treatment on the aluminum alloy plate after prepressing; 3. degreasing the quenched aluminum alloy plate, and pre-dipping fiber cloth in epoxy resin glue solution; 4. manufacturing a sandwich board according to the sequence of the aluminum alloy plate, the fiber prepreg and the aluminum alloy plate, and performing prepressing treatment on the sandwich board; 5. and placing the obtained sandwich plate in a stamping die, closing the die, preserving heat and curing to obtain the fiber-aluminum alloy composite material part. The method overcomes the problem of low elongation in the forming process of the fiber material, and improves the strength of the composite material part.
Description
Technical Field
The application relates to the technical field of composite materials, in particular to a forming method of a fiber-aluminum alloy composite material part.
Background
The fiber reinforced resin matrix composite material has the advantages of high specific strength, high specific stiffness, high corrosion resistance and the like, so that the fiber reinforced resin matrix composite material is widely applied to the traffic fields of aerospace, automobiles and the like. But inherent defects of the resin itself, such as: the defects of easy aging, easy creep, poor flame resistance and the like limit the further application of the fiber reinforced resin matrix composite material. In order to overcome the defects of the resin matrix, the aluminum alloy and the fiber composite material can be combined, so that the defects of poor humidity resistance and heat resistance are overcome, the characteristics of good plasticity, impact resistance and easy processability of the aluminum alloy can be exerted, and the advantages of light weight, high strength and good fatigue property of the fiber reinforced resin matrix composite material can be exerted.
At present, the manufacturing process of the fiber-aluminum alloy composite material is mostly limited to forming flat plates or laminated plate parts with small-curvature structures, and the manufacturing process mainly adopts the following steps: (1) placing a fiber reinforced thermoplastic resin aluminum alloy laminate between a female die and a male die; (2) heating the aluminum alloy layer, namely heating the aluminum alloy layer in the fiber reinforced thermoplastic resin aluminum alloy laminate to the melting temperature of the fiber reinforced thermoplastic resin and preserving heat for a certain time; (3) closing the die and maintaining the pressure, keeping a certain pressure after closing the die, and continuing for a certain time; (4) and (5) demolding and cooling.
However, the above method is only used to solve the problem of delamination between the aluminum alloy layer and the fiber thermoplastic resin layer during the forming process of the fiber reinforced thermoplastic resin aluminum alloy laminate part, and in the actual production process, the fiber cloth may be broken during the forming process due to the poor elongation of the fiber material, so that the press forming of the fiber-aluminum alloy composite part with a complex structure is difficult to realize.
Disclosure of Invention
The application provides a forming method of a fiber-aluminum alloy composite part, which overcomes the defect of low elongation of a fiber material in the stamping forming process, and further improves the strength of the fiber-aluminum alloy composite part through solid solution and aging treatment of aluminum alloy.
The technical scheme of the application is as follows:
a method of forming a fiber-aluminum alloy composite part, comprising the steps of:
s1, respectively cutting a first aluminum alloy plate, a second aluminum alloy plate and fiber cloth according to the shape of a part;
s2, carrying out solid solution treatment on the first aluminum alloy plate and the second aluminum alloy plate, carrying out pre-pressing treatment on the first aluminum alloy plate and the second aluminum alloy plate after solid solution treatment, uniformly distributing grid-shaped grooves on the surfaces of the first aluminum alloy plate, the second aluminum alloy plate and the fiber cloth for gluing, and carrying out quenching treatment on the pre-pressed first aluminum alloy plate and the pre-pressed second aluminum alloy plate;
s3, deoiling the first aluminum alloy plate and the second aluminum alloy plate after quenching, and presoaking the fiber cloth in epoxy resin glue solution;
s4, laying the fiber cloth subjected to pre-dipping treatment on the first aluminum alloy plate, and laying the second aluminum alloy plate on the pre-dipped fiber cloth to obtain a fiber-aluminum alloy sandwich plate; pre-pressing the sandwich plate by using a die to enable a large deformation area generated in the stamping process of the sandwich plate to be of a wave-shaped structure;
s5, placing the pre-pressed sandwich plate in a stamping die, carrying out die assembly, heat preservation and curing processes to obtain a fiber-aluminum alloy composite material part, and placing the obtained fiber-aluminum alloy composite material part at room temperature for natural aging.
According to the non-limiting embodiment of the application, the material storage is realized by prepressing the fiber-aluminum alloy sandwich plate into the wavy structure deformation, and in the later stamping forming process, the wavy fiber cloth is gradually unfolded and flattened under the action of the drawing force, so that the defect of low elongation of the fiber cloth is compensated, and the part defect caused by low elongation of the fiber material is avoided; meanwhile, the first aluminum alloy plate and the second aluminum alloy plate are pre-pressed with latticed grooves, the latticed grooves play a role in guiding flow in the forming process, and redundant epoxy resin glue solution can be extruded out in time, so that the uniform distribution of the epoxy resin glue solution is ensured, meanwhile, the gluing area of the first aluminum alloy plate, the second aluminum alloy plate and the fiber cloth is increased due to the grooves, and the bonding strength is improved; in addition, the strength of the composite material part is improved by carrying out solid solution and aging treatment on the aluminum alloy plate, and the fiber-aluminum alloy composite material part with high specific strength, high specific stiffness, excellent fatigue performance and excellent damage tolerance performance is finally obtained.
In addition, the forming method of the fiber-aluminum alloy composite material part according to the embodiment of the application has the following additional technical characteristics:
as a technical scheme of this application, in step S1, first aluminum alloy plate the thickness of second aluminum alloy plate is 1 ~ 4mm, the thickness of fibre cloth is 0.1 ~ 2mm, just fibre cloth includes carbon fiber, glass fiber or aramid fiber.
According to the non-limiting embodiment of the application, the experimental result shows that the fiber-aluminum alloy sandwich board is easier to form and has good forming effect by adopting the first aluminum alloy plate, the second aluminum alloy plate and the fiber cloth with the thickness and the size for processing, the matching between the first aluminum alloy plate and the second aluminum alloy plate is tight, and the rigidity and the strength of the fiber-aluminum alloy sandwich board can be further improved; moreover, according to the practical use result, the rigidity and the strength of the fiber-aluminum alloy composite material part processed by the size are relatively improved by 130 percent; meanwhile, the size design of the whole structure is reasonable, so that the distribution of grid-shaped grooves formed in the first pre-pressing process of the first aluminum alloy plate and the second aluminum alloy plate is more uniform, the diversion process of extruding redundant epoxy resin glue solution by the grooves is smoother, and the uniform distribution of the epoxy resin glue solution is ensured; in addition, the fiber cloth made of the material can further improve the rigidity and the strength of the fiber-aluminum alloy composite material part.
As one technical solution of the present application, in step S2, the depth of the groove is 5% to 10% of the thickness of the first aluminum alloy plate or the second aluminum alloy plate, and the width of the groove is 5% to 15% of the thickness of the first aluminum alloy plate or the second aluminum alloy plate; the distance between every two adjacent grooves is 10-100 mm.
According to the non-limiting embodiment of the application, the experimental result shows that the grooves are set to have the depth range and the distance, so that the influence of the existence of the grooves on the strength of the plate can be reduced, and the strength of the fiber-aluminum alloy composite material part is further improved.
As one of the technical solutions of the present application, in step S3, the first aluminum alloy sheet and the second aluminum alloy sheet are degreased with a sodium hydroxide solution having a mass concentration of 5%.
According to the non-limiting embodiment of the application, the experiment result shows that the sodium hydroxide solution with the mass concentration can improve the oil removing efficiency and has better oil removing effect.
As one technical solution of the present application, in step S4, an included angle between a profile tangent line of the corrugated structure of the sandwich panel and an axial direction of the first aluminum alloy plate or the second aluminum alloy plate is 1 ° to 45 °.
According to the non-limiting embodiment of the application, the wave-shaped structure in the angle range is adopted, so that the deformation and the expansion of the wave-shaped structure are facilitated in the process of die assembly, and wrinkles are prevented from being generated.
As a technical scheme of the application, in step S5, the temperature of the sandwich board starts to rise after the mould is closed, the temperature rise rate is 1-5 ℃/min, the heat preservation temperature in the heat preservation process is 150-200 ℃, and the heat preservation time is 10-40 min.
According to the non-limiting example of the application, the practical use result shows that the rigidity and the strength of the fiber-aluminum alloy composite material part can be further improved by adopting the data range to carry out the processes of mold closing, heat preservation and curing, so that the fiber-aluminum alloy composite material part with excellent fatigue performance and damage tolerance performance can be obtained.
A method of forming a fiber-aluminum alloy composite part, comprising the steps of:
s1, respectively cutting a first aluminum alloy plate, a second aluminum alloy plate and fiber cloth according to the shape of a part;
s2, carrying out solid solution treatment on the first aluminum alloy plate and the second aluminum alloy plate, carrying out pre-pressing treatment on the first aluminum alloy plate and the second aluminum alloy plate after solid solution treatment, uniformly distributing grid-shaped grooves on the surfaces of the first aluminum alloy plate, the second aluminum alloy plate and the fiber cloth for gluing, and carrying out quenching treatment on the pre-pressed first aluminum alloy plate and the pre-pressed second aluminum alloy plate;
s3, performing oil removal treatment on the quenched first aluminum alloy plate and the quenched second aluminum alloy plate;
s4, uniformly paving a first thermoplastic epoxy resin powder layer on the first aluminum alloy plate, and paving a thermoplastic epoxy resin powder block on the first thermoplastic epoxy resin powder layer in a large deformation area of the first aluminum alloy plate; sequentially laying the fiber cloth, a second thermoplastic epoxy resin powder layer and the second aluminum alloy plate on the first epoxy resin powder layer paved with the thermoplastic epoxy resin powder block to obtain a sandwich plate;
s5, placing the sandwich board in a stamping die, and clamping the sandwich board by the die in a force loading mode to ensure that adjacent layers in the sandwich board are in full contact; heating the sandwich board, closing the mould of the sandwich board when the sandwich board reaches the melting temperature of the thermoplastic epoxy resin powder block, performing heat preservation and curing procedures to obtain a fiber-aluminum alloy composite material part, and naturally aging the obtained fiber-aluminum alloy composite material part at room temperature.
According to a non-limiting example of the present application, it is known to form a first aluminum alloy sheet by laying a plurality of thermoplastic epoxy powder lumps on a large deformation area generated during stamping of the first aluminum alloy sheet; in the later stamping forming process, the fiber cloth is laid on the first aluminum alloy plate in a structure which is the same as or similar to the saw-toothed structure; therefore, the fiber cloth with the sawtooth-shaped structure can be gradually unfolded and paved under the action of drawing force, so that the defect of low elongation of the fiber cloth is compensated, and the defect of parts caused by low elongation of fiber materials is avoided; meanwhile, the first aluminum alloy plate and the second aluminum alloy plate are pre-pressed with latticed grooves, the latticed grooves play a role in guiding flow in the forming process, and redundant epoxy resin glue solution can be extruded out in time, so that the uniform distribution of the epoxy resin glue solution is ensured, meanwhile, the gluing area of the first aluminum alloy plate, the second aluminum alloy plate and the fiber cloth is increased due to the grooves, and the bonding strength is improved; in addition, the strength of the composite material part is improved by carrying out solid solution and aging treatment on the aluminum alloy plate, and the fiber-aluminum alloy composite material part with high specific strength, high specific stiffness, excellent fatigue performance and excellent damage tolerance performance is finally obtained.
In one embodiment of the present invention, in step S4, the thicknesses of the first thermoplastic epoxy powder layer and the second thermoplastic epoxy powder layer are both 0.1 to 1 mm.
According to the non-limiting embodiment of the application, the first thermoplastic epoxy resin powder layer and the second thermoplastic epoxy resin powder layer with the thicknesses are adopted for manufacturing the sandwich panel, so that the sandwich panel is easier to form, the forming effect is good, the matching between the adjacent laminate plates is tight, and the rigidity and the strength of the fiber-aluminum alloy sandwich panel can be further improved.
As one technical solution of the present application, in step S4, the thermoplastic epoxy resin powder block is a frustum-shaped structure with an isosceles trapezoid cross section, which is obtained by performing press forming on thermoplastic epoxy resin powder; wherein the width of the bottom surface of the isosceles trapezoid is 1-15 mm, the height of the bottom surface of the isosceles trapezoid is 5-10 mm, and the included angle between the two bottoms is 20-60 degrees.
According to the non-limiting embodiment of the application, the thermoplastic epoxy resin powder block with the shape structure is adopted for processing, so that the fiber-aluminum alloy sandwich board is easier to form, the forming effect is good, and the rigidity and the strength of the fiber-aluminum alloy sandwich board can be further improved; moreover, according to the practical use result, the rigidity and the strength of the fiber-aluminum alloy composite material part processed by the size are relatively improved by 110 percent; meanwhile, the size design of the whole structure is reasonable, so that the distribution of grid-shaped grooves formed in the first pre-pressing process of the first aluminum alloy plate and the second aluminum alloy plate is more uniform, the diversion process of extruding redundant epoxy resin glue solution by the grooves is smoother, and the uniform distribution of the epoxy resin glue solution is ensured; in addition, the fiber cloth made of the material can further improve the rigidity and the strength of the fiber-aluminum alloy composite material part.
As a technical scheme of the application, in the step S5, the loading force in the force loading mode is 50-100N, the heating temperature of the sandwich plate is 150-200 ℃, and the heat preservation time of the sandwich plate is 10-40 min.
According to the non-limiting example of the application, the practical use result shows that the rigidity and the strength of the fiber-aluminum alloy composite material part can be further improved by adopting the data range to carry out the processes of mold closing, heat preservation and curing, so that the fiber-aluminum alloy composite material part with excellent fatigue performance and damage tolerance performance can be obtained.
The beneficial effect of this application:
according to the method, the fiber-aluminum alloy sandwich plate is pre-pressed to form the wavy deformation to complete material storage, and in the later stamping forming process, the wavy fiber cloth is gradually unfolded and flattened under the action of drawing force, so that the defect of low elongation of the fiber cloth is compensated, and the defect of parts caused by low elongation of fiber materials is avoided; meanwhile, the latticed grooves are formed by prepressing the aluminum alloy, and the grooves play a role in guiding flow in the forming process to timely extrude redundant epoxy resin glue solution, so that the uniform distribution of the epoxy resin glue solution is ensured, meanwhile, the gluing area of the aluminum alloy plate and the fiber cloth is increased due to the existence of the grooves, and the bonding strength is improved; according to the invention, the strength of the composite material part is improved by carrying out solid solution and aging treatment on the aluminum alloy plate, and the fiber-aluminum alloy composite material part with high specific strength and specific stiffness, and excellent fatigue performance and damage tolerance performance is finally obtained.
The application also provides another fiber-aluminum alloy composite part forming method, which comprises the steps of paving a first thermoplastic epoxy resin powder layer on a first aluminum alloy plate, and then paving a thermoplastic epoxy resin powder block on the first epoxy resin powder layer in a region of the first aluminum alloy plate, which is subjected to larger deformation in the stamping process, so that fiber cloth is paved in a zigzag structure to finish material storage; therefore, in the later stamping forming process, the fiber cloth with the sawtooth-shaped structure is gradually unfolded and flattened under the action of drawing force, so that the defect of low elongation of the fiber cloth is compensated, and the defect of parts caused by low elongation of fiber materials is avoided; meanwhile, the latticed grooves are formed by prepressing the aluminum alloy, and the grooves play a role in guiding flow in the forming process to timely extrude redundant epoxy resin glue solution, so that the uniform distribution of the epoxy resin glue solution is ensured, meanwhile, the gluing area of the aluminum alloy plate and the fiber cloth is increased due to the existence of the grooves, and the bonding strength is improved; according to the invention, the strength of the composite material part is improved by carrying out solid solution and aging treatment on the aluminum alloy plate, and the fiber-aluminum alloy composite material part with high specific strength and specific stiffness, and excellent fatigue performance and damage tolerance performance is finally obtained.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a first process diagram of a second pre-pressing treatment of a fiber-aluminum alloy sandwich panel according to a first embodiment of the present application;
FIG. 2 is a second process diagram of a second pre-pressing treatment of the fiber-aluminum alloy sandwich panel according to the first embodiment of the present application;
FIG. 3 is a second pre-pressed fiber-aluminum alloy sandwich panel blank according to the first embodiment of the present application;
FIG. 4 is a schematic view of a first process for forming a fiber-aluminum alloy composite part according to a first embodiment of the present application;
FIG. 5 is a schematic view of a second process for forming a fiber-aluminum alloy composite part according to the first embodiment of the present application;
fig. 6 shows a fiber-aluminum alloy sandwich panel blank after the second pre-pressing treatment according to the second embodiment of the present application.
Icon: 1-a first aluminum alloy sheet; 2-fiber cloth; 3-a second aluminum alloy plate; 4-a male die; 5-blank holder; 6-sandwich board; 7-heating a tube; and 8-forming the female die.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
Further, in the present application, unless expressly stated or limited otherwise, the first feature may be directly contacting the second feature or may be directly contacting the second feature, or the first and second features may be contacted with each other through another feature therebetween, not directly contacting the second feature. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The first embodiment:
referring to fig. 1, with reference to fig. 2 and 5, an embodiment of the present application provides a process method for forming a fiber-aluminum alloy composite part, which can overcome a defect of low elongation of a fiber material during a stamping process and improve strength of the fiber-aluminum alloy composite part.
The implementation steps of the process method for forming the fiber-aluminum alloy composite material part are as follows:
s1, cutting the aluminum alloy plate (including the first aluminum alloy plate 1 and the second aluminum alloy plate 3 in the embodiment) and the fiber cloth 2 according to the shape of the part to respectively obtain 400mm × 250mm blanks;
s2, performing solid solution treatment on the first aluminum alloy plate 1 and the second aluminum alloy plate 3 at 535 ℃ for 30min, immediately performing first pre-pressing treatment on the first aluminum alloy plate 1 and the second aluminum alloy plate 3 which are subjected to solid solution treatment, namely placing the first aluminum alloy plate 1 and the second aluminum alloy plate 3 in a grid-type groove pre-pressing die, uniformly distributing grid-shaped grooves on the surfaces of the first aluminum alloy plate 1, the second aluminum alloy plate 3 and a fiber cloth 2 which are glued, and immediately performing quenching treatment on the pre-pressed first aluminum alloy plate 1 and the second aluminum alloy plate 3; wherein, the depth of the groove in the embodiment of the present application is 0.1mm, the width is 0.2mm, the distance between the adjacent grooves along the length direction of the first aluminum alloy plate 1 and the second aluminum alloy plate 3 is 20mm, and the distance between the adjacent grooves along the width direction of the first aluminum alloy plate 1 and the second aluminum alloy plate 3 is 12.5 mm; in other embodiments, the depth of the groove may be in a range of 0.05-0.4 mm, and is not limited to the depth in this embodiment;
s3, after quenching, using a sodium hydroxide solution with the mass concentration of 5% to remove oil from the first aluminum alloy plate 1 and the second aluminum alloy plate 3, and pre-dipping the fiber cloth 2 in an epoxy resin glue solution;
s4, laying fiber cloth 2 prepreg on the first aluminum alloy plate 1, and then finishing laying of the second aluminum alloy plate 3 to obtain a sandwich plate 6; carrying out secondary prepressing treatment on the sandwich plate 6, applying wave-shaped deformation to an area with large deformation generated in the punching process of the sandwich plate 6, and putting the obtained sandwich plate 6 into a wave-shaped deformation prepressing die for prepressing to enable a large deformation area generated in the punching process of the sandwich plate 6 to be in a wave-shaped structure; in this embodiment, an included angle between a profile tangent of the wavy structure and the horizontal direction is 1 to 20 °;
s5, placing the obtained sandwich plate 6 on a stamping die, wherein the stamping die is provided with a support, a female die 8 is arranged on the support, meanwhile, blank holders 5 for compressing the sandwich plate 6 are arranged on two sides of the support, a male die 4 is arranged above the support and is positioned right above the female die 8, a plurality of heating pipes 7 which are distributed at intervals are arranged on the peripheries of the female die 8 and the male die 4, the heating pipes 7 are connected with a power supply, and the heating pipes 7 can be heated and the sandwich plate 6 can be heated by electrifying; placing the obtained sandwich plate 6 on a female die 8 with a stamping die and between the female die 8 and a male die 4, moving the two blank holders 5 and the male die 4 downwards, and simultaneously supporting the sandwich plate 6 by using a support so that the two blank holders 5 and the male die 4 are respectively contacted with the sandwich plate 6, thereby realizing die assembly; and (3) switching on a power supply, heating the die and the sandwich plate 6 by a plurality of heating pipes 7, namely heating the sandwich plate 6, the female die 8, the male die 4 and the two blank holders 5 to 180 ℃ at the speed of 5 ℃/min, preserving the temperature for 30min, finally curing to obtain the fiber-aluminum alloy composite material part, and naturally aging the obtained composite material part at room temperature.
In the present embodiment, the carbon fiber cloth 2 with a thickness of 0.2mm is used as the fiber cloth 2, and 6061 aluminum alloy with a thickness of 1.5mm is used as the first aluminum alloy plate 1 and the second aluminum alloy plate 3; in other embodiments, the three may also adopt structures with other thicknesses and materials, for example, the first aluminum alloy plate 1 and the second aluminum alloy plate 3 may adopt plates with thicknesses of 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.6mm, 1.7mm, 2mm, 3mm, 3.7mm, etc., the fiber cloth 2 may adopt plates with thicknesses of 0.1mm, 0.3mm, 1.2mm, 1.5mm, 1.8mm, etc., and the fiber cloth 2 may also adopt a material of glass fiber or aramid fiber, which is not limited to the material and the dimensional structure in this embodiment.
Second embodiment:
referring to fig. 6, referring to fig. 1, fig. 2, fig. 4 and fig. 5 in the first embodiment, the present application provides another method for forming a fiber-aluminum alloy composite part, which can overcome the defect of low elongation of the fiber material during the stamping process and improve the strength of the fiber-aluminum alloy composite part.
The implementation steps of the process method for forming the fiber-aluminum alloy composite material part are as follows:
s1, cutting the aluminum alloy plate (including the first aluminum alloy plate 1 and the second aluminum alloy plate 3 in the embodiment) and the fiber cloth 2 according to the shape of the part to respectively obtain blanks of 1000mm multiplied by 500 mm;
s2, performing solution treatment on the first aluminum alloy plate 1 and the second aluminum alloy plate 3 at 535 ℃ for 30min, immediately performing first pre-pressing treatment on the first aluminum alloy plate 1 and the second aluminum alloy plate 3 which are subjected to solution treatment, namely placing the first aluminum alloy plate 1 and the second aluminum alloy plate 3 in a grid-type groove pre-pressing die, uniformly distributing grid-shaped grooves on the surfaces of the first aluminum alloy plate 1 and the second aluminum alloy plate 3, which are glued with the fiber cloth 2, and immediately quenching the pre-pressed aluminum alloy plates (namely the first aluminum alloy plate 1 and the second aluminum alloy plate 3); in this embodiment, the depth of the grooves is 0.05mm, the width is 0.1mm, the pitch between the adjacent grooves along the length direction of the first aluminum alloy sheet 1 and the second aluminum alloy sheet 3 is 25mm, and the pitch between the adjacent grooves along the width direction of the first aluminum alloy sheet 1 and the second aluminum alloy sheet 3 is 12.5 mm; in other embodiments, the depth of the groove may be in a range of 0.05-0.4 mm, and is not limited to the depth in this embodiment;
s3, after quenching, using a sodium hydroxide solution with the mass concentration of 5% to carry out oil removal treatment on the first aluminum alloy plate 1 and the second aluminum alloy plate 3;
s4, uniformly laying a first thermoplastic epoxy resin powder layer on the first aluminum alloy plate 1, and laying six thermoplastic epoxy resin powder blocks on the first epoxy resin powder layer in the region of the first aluminum alloy plate 1 where the deformation generated during the stamping process is large. The thermoplastic epoxy resin powder block is of a frustum pyramid structure with an isosceles trapezoid-shaped cross section, the width of the bottom surface of the isosceles trapezoid is 10mm, the height of the bottom surface of the isosceles trapezoid is 10mm, and two bottom angles are 30 degrees; then, laying the fiber cloth, the second epoxy resin powder layer and the second aluminum alloy plate 3 in sequence; wherein, because six thermoplastic epoxy resin powder blocks are laid on the first epoxy resin powder layer in the area of the first aluminum alloy plate 1 with larger deformation generated in the stamping process, the fiber cloth is laid on the first aluminum alloy plate 1 by adopting the structure which is the same as or similar to the sawtooth-shaped structure due to the existence of the thermoplastic epoxy resin powder blocks; meanwhile, in the embodiment, the thickness of the first epoxy resin powder layer is 0.2mm, and the thickness of the second epoxy resin powder layer is 0.4mm, and in other embodiments, the thicknesses of the first epoxy resin powder layer and the second epoxy resin powder layer can be other;
s5, placing the obtained sandwich plate 6 in a stamping die with a heating pipe 7 and a diversion trench, and firstly clamping the sandwich plate 6 by the stamping die with a loading force of 50N in a force loading mode to ensure that all layers of the sandwich plate 6 are in good contact; heating the sandwich plate 6, heating the sandwich plate from room temperature to 180 ℃ at the speed of 10 ℃/min, and closing the sandwich plate 6 when the melting temperature of the thermoplastic epoxy resin powder is reached; and finally, preserving the heat for 30min to obtain the fiber-aluminum alloy composite material part, and naturally aging the obtained composite material part at room temperature.
In this embodiment, the carbon fiber cloth 2 having a thickness of 0.5mm is used as the fiber cloth 2, and 6061 aluminum alloy having a thickness of 1.5mm is used as the first aluminum alloy plate 1 and the second aluminum alloy plate 3; in other embodiments, the three may also adopt structures with other thicknesses and materials, for example, the first aluminum alloy plate 1 and the second aluminum alloy plate 3 may adopt plates with thicknesses of 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.6mm, 1.7mm, 2mm, 3mm, 3.7mm, etc., the fiber cloth 2 may adopt plates with thicknesses of 0.1mm, 0.3mm, 1.2mm, 1.5mm, 1.8mm, etc., and the fiber cloth 2 may also adopt a material of glass fiber or aramid fiber, which is not limited to the material and the dimensional structure in this embodiment.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A method for forming a fiber-aluminum alloy composite part is characterized by comprising the following steps:
s1, respectively cutting a first aluminum alloy plate, a second aluminum alloy plate and fiber cloth according to the shape of a part;
s2, carrying out solid solution treatment on the first aluminum alloy plate and the second aluminum alloy plate, carrying out pre-pressing treatment on the first aluminum alloy plate and the second aluminum alloy plate after solid solution treatment, uniformly distributing grid-shaped grooves on the surfaces of the first aluminum alloy plate, the second aluminum alloy plate and the fiber cloth for gluing, and carrying out quenching treatment on the pre-pressed first aluminum alloy plate and the pre-pressed second aluminum alloy plate;
s3, deoiling the first aluminum alloy plate and the second aluminum alloy plate after quenching, and presoaking the fiber cloth in epoxy resin glue solution;
s4, laying the fiber cloth subjected to pre-dipping treatment on the first aluminum alloy plate, and laying the second aluminum alloy plate on the pre-dipped fiber cloth to obtain a fiber-aluminum alloy sandwich plate; pre-pressing the sandwich plate by using a die to enable a large deformation area generated in the stamping process of the sandwich plate to be of a wave-shaped structure;
s5, placing the pre-pressed sandwich plate in a stamping die, carrying out die assembly, heat preservation and curing processes to obtain a fiber-aluminum alloy composite material part, and placing the obtained fiber-aluminum alloy composite material part at room temperature for natural aging.
2. The method of claim 1, wherein in step S1, the first aluminum alloy plate and the second aluminum alloy plate have a thickness of 1-4 mm, the fiber cloth has a thickness of 0.1-2 mm, and the fiber cloth comprises carbon fiber, glass fiber, or aramid fiber.
3. The fiber-aluminum alloy composite part forming method according to claim 1, wherein in step S2, the grooves have a depth of 5% to 10% of a thickness of the first aluminum alloy plate or the second aluminum alloy plate and a width of 5% to 15% of the thickness of the first aluminum alloy plate or the second aluminum alloy plate; the distance between every two adjacent grooves is 10-100 mm.
4. The method of claim 1, wherein in step S3, the first aluminum alloy plate and the second aluminum alloy plate are degreased with a sodium hydroxide solution having a mass concentration of 5%.
5. The method of claim 1, wherein in step S4, an included angle between a profile tangent line of the corrugated structure of the sandwich panel and an axial direction of the first aluminum alloy plate or the second aluminum alloy plate is 1 ° to 45 °.
6. The method for forming a fiber-aluminum alloy composite material part according to claim 1, wherein in step S5, the temperature of the sandwich panel starts to rise after the mold is closed, the temperature rise rate is 1-5 ℃/min, the heat preservation temperature in the heat preservation process is 150-200 ℃, and the heat preservation time is 10-40 min.
7. A method for forming a fiber-aluminum alloy composite part is characterized by comprising the following steps:
s1, respectively cutting a first aluminum alloy plate, a second aluminum alloy plate and fiber cloth according to the shape of a part;
s2, carrying out solid solution treatment on the first aluminum alloy plate and the second aluminum alloy plate, carrying out pre-pressing treatment on the first aluminum alloy plate and the second aluminum alloy plate after solid solution treatment, uniformly distributing grid-shaped grooves on the surfaces of the first aluminum alloy plate, the second aluminum alloy plate and the fiber cloth for gluing, and carrying out quenching treatment on the pre-pressed first aluminum alloy plate and the pre-pressed second aluminum alloy plate;
s3, performing oil removal treatment on the quenched first aluminum alloy plate and the quenched second aluminum alloy plate;
s4, uniformly paving a first epoxy resin powder layer on the first aluminum alloy plate, and paving an epoxy resin powder block on the first epoxy resin powder layer in a large deformation area of the first aluminum alloy plate; sequentially laying the fiber cloth, a second epoxy resin powder layer and the second aluminum alloy plate on the first epoxy resin powder layer on which the epoxy resin powder blocks are laid to obtain a sandwich plate;
s5, placing the sandwich board in a stamping die, and pressing the sandwich board by the die in a force loading mode to ensure that adjacent layers in the sandwich board are in full contact; heating the sandwich board, closing the mould of the sandwich board when the sandwich board reaches the melting temperature of the epoxy resin powder block, performing heat preservation and curing procedures to obtain a fiber-aluminum alloy composite material part, and naturally aging the obtained fiber-aluminum alloy composite material part at room temperature.
8. The fiber-aluminum alloy composite material part forming method according to claim 7, wherein in step S4, the first epoxy resin powder layer and the second epoxy resin powder layer each have a thickness of 0.1 to 1 mm.
9. The method for forming a fiber-aluminum alloy composite material part according to claim 7, wherein in step S4, the epoxy resin powder block is a frustum pyramid structure with an isosceles trapezoid cross section, which is obtained by pressing epoxy resin powder, wherein the isosceles trapezoid has a bottom width of 1-15 mm, a height of 5-10 mm, and an included angle between two bottoms of 20-60 °.
10. The method for forming a fiber-aluminum alloy composite material part according to claim 7, wherein in step S5, the loading force in the force loading mode is 50-100N, the heating temperature of the sandwich panel is 150-200 ℃, and the holding time of the sandwich panel is 10-40 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910372262.3A CN110143034B (en) | 2019-05-06 | 2019-05-06 | Forming method of fiber-aluminum alloy composite material part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910372262.3A CN110143034B (en) | 2019-05-06 | 2019-05-06 | Forming method of fiber-aluminum alloy composite material part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110143034A CN110143034A (en) | 2019-08-20 |
| CN110143034B true CN110143034B (en) | 2021-07-06 |
Family
ID=67594784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910372262.3A Active CN110143034B (en) | 2019-05-06 | 2019-05-06 | Forming method of fiber-aluminum alloy composite material part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110143034B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110871578A (en) * | 2019-11-22 | 2020-03-10 | 北京航空航天大学 | Integrated process for preparing and forming fiber metal laminate based on liquid filling forming |
| CN111231366B (en) * | 2020-01-14 | 2021-06-01 | 上海交通大学 | CFRP/aluminum alloy hot forming quenching aging co-curing integrated forming method |
| CN111231375A (en) * | 2020-01-14 | 2020-06-05 | 上海交通大学 | Hot forming and co-curing integrated forming method for CFRP/aluminum alloy composite structure |
| CN112339306B (en) * | 2020-10-13 | 2022-06-07 | 武汉理工大学 | Necking processing preparation method of fiber-metal tube |
| CN113427797A (en) * | 2021-06-23 | 2021-09-24 | 吉林大学 | Forming process of composite B column based on bionic structure of Coleoptera carinicauda of Oriental Trigonella |
| CN114433709B (en) * | 2022-01-17 | 2023-07-21 | 北京协同创新研究院 | Forming method of super hybrid composite material special-shaped piece |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007001226A (en) * | 2005-06-27 | 2007-01-11 | Toray Ind Inc | Forming method of composite member of metal sheet and fiber-reinforced plastic, and composite substrate of metal sheet and fiber-reinforced plastics base material used for the forming |
| JP6067473B2 (en) * | 2013-03-29 | 2017-01-25 | 積水化成品工業株式会社 | Method for producing fiber reinforced composite and fiber reinforced composite |
| CN104707888B (en) * | 2014-12-26 | 2016-09-14 | 中航复合材料有限责任公司 | A kind of fiber metal hybrid composite part laminated forming process |
| CN105082723B (en) * | 2015-08-19 | 2017-11-10 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of fiber-reinforced thermoplastic resin aramid aluminiumlaminates part shaping techniques |
| TWI622491B (en) * | 2016-12-16 | 2018-05-01 | 財團法人金屬工業研究發展中心 | Hot stamping forming low heat transfer heating mold and hot stamping part forming method |
| CN107297407B (en) * | 2017-04-28 | 2020-04-03 | 上海大学 | Die-pressing quenching composite forming method for aluminum alloy plate and integrated device thereof |
| CN108724817B (en) * | 2018-05-04 | 2020-03-17 | 河南工业大学 | Intelligent manufacturing method of thermoplastic composite material metal sandwich plate product |
-
2019
- 2019-05-06 CN CN201910372262.3A patent/CN110143034B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110143034A (en) | 2019-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110143034B (en) | Forming method of fiber-aluminum alloy composite material part | |
| CN110614275B (en) | Method for rolling bimetal composite plate in strong deformation manner | |
| US10889095B2 (en) | Lamination structure and a method for manufacturing the same | |
| JP5890851B2 (en) | Composite materials and methods comprising regions of different properties | |
| CN101045269A (en) | Method for manufacturing a heat exchanger | |
| CN112223804B (en) | Method for forming and preparing laminated composite material honeycomb | |
| JP2007512977A5 (en) | ||
| CN101691962B (en) | Processing molding method of magnesium alloy plate type heat exchanger | |
| CN1311211C (en) | Heat exchanger for a refrigerator and method for producing a heat exchanger | |
| WO2021020593A1 (en) | Die | |
| GB2489212A (en) | Structural foam manufacture | |
| CN110843285B (en) | Carbon fiber composite structural member with multilayer structure and preparation method thereof | |
| CN103861932B (en) | A kind of building mortion of thermoplastic glass fiber reinforced aramid aluminiumlaminates and method | |
| CN104385621B (en) | Combined mould for preparation of quasi-honeycomb composite material sandwich plate | |
| CN109130238B (en) | Method for manufacturing rear floor beam | |
| TW202006024A (en) | CFRP sheet, laminated body using CFRP sheet, and CFRP sheet production method | |
| CN114347585B (en) | Sandwich structure of local compact honeycomb core | |
| RU2304117C1 (en) | Method of manufacturing glass-metal composite | |
| KR101947419B1 (en) | Sandwich panel, the manufacturing method for the same and sandwich panel structure | |
| CN102837455A (en) | Cellular carbon fiber energy absorber, and manufacturing method and manufacturing equipment thereof | |
| KR101917471B1 (en) | Composite steel sheet having excellent adhesion and method for preparing the same | |
| JPH08327290A (en) | Panel for heat exchanger made of fiber-reinfored thermoplastic resin | |
| CN118238450A (en) | Preparation method of composite material conical honeycomb sandwich plate with high in-plane shearing performance | |
| CN115958858A (en) | Self-reinforced polypropylene plate and preparation method thereof | |
| CN114940012A (en) | Process for manufacturing a vehicle interior molding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |