CN113977990A - Preparation method for improving tensile strength of metal/CFRP composite material member - Google Patents
Preparation method for improving tensile strength of metal/CFRP composite material member Download PDFInfo
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- CN113977990A CN113977990A CN202111298033.5A CN202111298033A CN113977990A CN 113977990 A CN113977990 A CN 113977990A CN 202111298033 A CN202111298033 A CN 202111298033A CN 113977990 A CN113977990 A CN 113977990A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/681—Component parts, details or accessories; Auxiliary operations
- B29C70/683—Pretreatment of the preformed part, e.g. insert
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/78—Moulding material on one side only of the preformed part
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- 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
- B32B38/00—Ancillary operations in connection with laminating processes
-
- 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
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Fluid Mechanics (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a preparation method and application for improving tensile strength of a metal/carbon fiber composite material member. Carrying out laser surface treatment on the surface of the metal material by a laser marking machine to form a micro-columnar array, and modifying the surface of the metal material to obtain a modified metal material; providing a carbon fiber layer free of macroscopic bubbles; laying the carbon fiber layer on the surface of the modified metal material, and carrying out heating, pressurizing and curing treatment to obtain a metal/carbon fiber composite material component; in the present invention, the carbon fiber layer includes T700 carbon fiber reinforcement and FRD-YQ5-01S fast curing epoxy resin. The invention combines the metal material and the carbon fiber together, thereby reducing the weight of the material while ensuring the strength and the toughness of the composite material. The results of the examples show that the weight of the metal and carbon fiber composite material obtained by the preparation method of the invention is reduced by 30% compared with the conventional metal material, and the impact performance is improved by 4 times.
Description
Technical Field
The invention relates to a preparation method and application for improving the tensile strength of a metal/CFRP composite material component, and belongs to the technical field of composite materials.
Background
The lightweight of the automobile is to reduce the overall quality of the automobile as much as possible on the premise of ensuring the strength and the safety performance of the automobile, thereby improving the dynamic property of the automobile, reducing the fuel consumption and reducing the exhaust pollution. Along with the fact that 'energy conservation and environmental protection' become more and more topics of wide attention, light weight is also widely applied to the field of ordinary automobiles, excellent fuel-saving performance can be achieved while the controllability is improved, the fuel consumption of the automobiles mainly depends on the discharge capacity of an engine and the total mass of the automobiles, and the light weight of the automobiles can improve the output power, reduce the noise, reduce the exhaust emission and improve the safety on the premise that the overall quality, performance and manufacturing cost of the automobiles are unchanged or even optimized.
In order to achieve weight reduction of automobiles, various weight-reducing materials having certain strength and toughness have been disclosed in the prior art. Patent CN 108943548A discloses a carbon fiber composite material manufacturing process, which obtains a carbon fiber composite material through the carbon fiber composite material manufacturing process, wherein the carbon fiber composite material has high specific strength and specific modulus, but has poor toughness and low collision energy absorption capacity, and the simple carbon fiber material is difficult to meet the requirements of the automobile industry on collision.
Disclosure of Invention
The invention aims to provide a preparation method and application for improving the tensile strength of a metal/CFRP composite material component. The preparation method provided by the invention is simple and easy to operate.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention provides a preparation method of a metal and carbon fiber composite material, which comprises the following steps:
soaking metal in acetone, cleaning in an ultrasonic cleaner at 70 deg.C for 30min to remove surface dust, and performing laser surface treatment on the surface of the metal material with a laser marking machine to obtain modified metal material;
providing a carbon fiber layer, wherein bubbles are not visible to naked eyes in the carbon fiber layer;
laying the carbon fiber layer in the step (2) on the modified surface of the modified metal material in the step (1), and carrying out heating, pressurizing and curing treatment to obtain a metal/carbon fiber composite material component;
the step (1) and the step (2) are not limited by time sequence;
and (3) the carbon fiber layer in the step (2) comprises a T700 carbon fiber reinforcement and FRD-YQ5-01S fast-curing epoxy resin.
Preferably, the laser marking machine is an RC1064-F150 laser marking machine;
preferably, the carbon fibers are 12K unidirectional carbon fibers.
Preferably, the surface modification treatment further comprises: and carrying out heat treatment on the metal material.
Preferably, the metal material in step (1) includes boron steel, aluminum alloy or 420 steel.
Preferably, the carbon fiber layer in the step (2) is formed by hand pasting of carbon fiber prepreg, and in the hand pasting process, air bubbles need to be repeatedly compacted to ensure that the carbon fiber cloth is tightly attached.
Preferably, the number of the carbon fiber layers in the step (2) is 4-8.
Preferably, the temperature of the heating, pressurizing and curing treatment is 100-150 ℃, the time is 20-40 min, and the pressure is 25-35 t.
The invention also provides a metal and carbon fiber composite material obtained by the preparation method, which comprises a metal material subjected to laser surface treatment by using a laser marking machine and a carbon fiber layer on the outer surface of the metal material, and the carbon fiber layer is cured by heating and pressurizing and comprises carbon fibers and resin.
The invention also provides application of the metal and carbon fiber composite material in the scheme in automobile manufacturing.
The invention provides a preparation method for improving the tensile strength of a metal/CFRP composite material member, which comprises the following steps: carrying out laser surface treatment on the surface of the metal material by a laser marking machine to form a micro-columnar array, and modifying the surface of the metal material to obtain a modified metal material; providing a carbon fiber layer free of macroscopic bubbles; laying the carbon fiber layer on the surface of the modified metal material, and carrying out heating, pressurizing and curing treatment to obtain a metal/carbon fiber composite material component; in the present invention, the carbon fiber layer includes T700 carbon fiber reinforcement and FRD-YQ5-01S fast curing epoxy resin. In the invention, the laser marking machine modifies the surface of the metal material, a micro-columnar array can be formed on the surface of the metal material, and the micro-columnar array is combined with CFRP to form a mechanical interlocking structure, so that the tensile strength of a product is improved. The results of the examples show that the weight of the metal and carbon fiber composite material obtained by the preparation method of the invention is reduced by 30% compared with the conventional metal material, and the impact performance is improved by 4 times.
Detailed Description
The invention provides a preparation method for improving the tensile strength of a metal/CFRP composite material member, which is characterized by comprising the following steps of:
(1) soaking metal in acetone, cleaning in an ultrasonic cleaner at 70 deg.C for 30min to remove surface dust, and performing laser surface treatment on the surface of the metal material with a laser marking machine to obtain modified metal material;
(2) providing a carbon fiber layer, wherein bubbles are not visible to naked eyes in the carbon fiber layer;
(3) laying the carbon fiber layer in the step (2) on the modified surface of the modified metal material in the step (1), and carrying out heating, pressurizing and curing treatment to obtain a steel/carbon fiber composite material component;
the step (1) and the step (2) are not limited by time sequence;
and (3) the carbon fiber layer in the step (2) comprises a T700 carbon fiber reinforcement and FRD-YQ5-01S fast-curing epoxy resin.
The invention carries out surface modification treatment on the metal material to obtain the modified metal material, wherein the surface modification treatment is to carry out laser surface treatment on the surface of the metal material by using a laser marking machine. The laser marking machine is an RC1064-F150 laser marking machine, a micro-columnar array is formed on the surface of a metal material by the laser marking machine, a CFRP (carbon fiber reinforced polymer) tow enters the micro-columnar array structure, the effective bonding area between metal and CFRP is increased, and a mechanical interlocking structure is formed, so that the bonding strength between the metal material and a carbon fiber layer is enhanced, and the performance of a composite material member is improved.
In the present invention, the metal material preferably includes boron steel, aluminum alloy, or 420 steel, and in the embodiment of the present invention, the metal material is 22MnB5, 7075 series aluminum alloy, and 420 steel.
In the present invention, it is preferable that the surface modification treatment further comprises: and carrying out heat treatment on the metal material, and carrying out surface modification on the metal material after the heat treatment. In the invention, the heat treatment improves the forming performance of the metal material, so that the heated metal material is preformed in a room temperature environment; the preforming is preferably carried out by means of a hydraulic press, the rolling is preferably carried out for 10s at a pressure of 30t, and in the embodiment of the invention, the metal material is preformed into a U-shaped member. In the invention, the heat treatment temperature of the 22MnB5 is preferably 920-935 ℃, and the heat treatment time is preferably 25-35 min; the heat treatment temperature of the 7075 series aluminum alloy is preferably 470-480 ℃, and the heat treatment time is preferably 25-35 min; the 420 steel can be formed at room temperature without heat treatment.
In the embodiment of the invention, the aging treatment is carried out on the formed 7075 series aluminum alloy, and the temperature of the aging treatment is preferably 100-150 ℃, and more preferably 110-130 ℃; the time of the aging treatment is preferably 20-30 hours, and more preferably 22-25 hours.
In the present invention, the preform is preferably cleaned, and the cleaning preferably comprises grinding and cleaning, wherein the grinding preferably uses sand paper to remove the surface oxide layer of the metal material, and the sand paper is preferably 180-mesh SiC sand paper; the cleaning is preferably carried out by using acetone to remove greasy dirt on the surface of the metal material.
The present invention provides a carbon fiber layer having no bubbles visible to the naked eye therein, the carbon fiber layer comprising carbon fibers and a resin. The carbon fiber is preferably 12K unidirectional carbon fiber of east Li Japan company; the resin is preferably a thermosetting resin, more preferably an epoxy resin, and more preferably an epoxy resin which is rapidly cured by FRD-YQ 5-01S; in the present invention, the resin tightly bonds the metal material and the carbon fiber together.
The preparation method of the carbon fiber layer preferably comprises the following steps: and manually pasting and molding the carbon fiber prepreg to obtain the carbon fiber layer.
In the invention, the number of the carbon fiber layers is preferably 4-8, more preferably 6-8, and even more preferably 6-8; bubbles which can be seen by naked eyes cannot be generated in the hand lay-up forming process, and if the bubbles are generated, the bubbles are removed by adopting an extrusion method, and the diameter of the bubbles is more than or equal to 100 and 150 microns. The bubbles in the carbon fiber layer can generate bonding defects, and the mechanical property of the composite material is reduced.
The steps of subjecting the metal material to the surface modification treatment to obtain the modified metal material and providing the carbon fiber layer in the present invention are not limited in time sequence.
After the modified metal material and the carbon fiber layer are obtained, the carbon fiber layer is laid on the modified surface of the modified metal material, and pressurization and solidification are carried out to obtain the metal and carbon fiber composite material. In the invention, the temperature of the heating, pressurizing and curing treatment is preferably 100-150 ℃, and more preferably 125-130 ℃; the time is preferably 20min to 40min, and more preferably 30min to 35 min; the pressure is preferably 25 to 35t, and more preferably 28 to 32 t. The equipment used for the press curing is not particularly limited in the present invention, and a hydraulic press well known to those skilled in the art may be used. In the invention, the carbon fiber layer is laid on the modified surface of the modified metal material, and after the laying is finished, the edge of the carbon fiber layer is preferably cut to enable the metal material to be flush with the surface of the fiber layer.
In the present invention, before the pressure curing treatment, the metal material on which the carbon fiber layer is laid is preferably placed in a mold, the mold is made according to the shape of the metal material, and in the embodiment of the present invention, the mold is a U-shaped mold; the U-shaped die comprises an upper die and a lower die, heating pipes are independently arranged in the upper die and the lower die, and the heating pipes heat the metal material on which the carbon fiber layer is laid to reach the temperature of pressurization curing treatment. The rate of heating according to the invention is not subject to any particular requirements. In the invention, the concave side of the U-shaped part is called as the inner side, the mold in contact with the inner side is a lower mold, the convex side of the U-shaped part is called as the outer side, the mold in contact with the outer side is an upper mold, when the carbon fiber layer is paved on the outer side of the modified metal material, a resin release agent is sprayed on the surface of the upper mold, and an aluminum alloy release agent is coated on the surface of the lower mold; when the carbon fiber layer is laid on the inner side of the modified metal material, an aluminum alloy release agent is coated on the surface of the upper die, and a resin release agent is sprayed on the surface of the lower die.
The invention also provides a metal and carbon fiber composite material obtained by the preparation method, which comprises a metal material subjected to laser surface treatment by using a laser marking machine and a carbon fiber layer on the outer surface of the metal material, and the carbon fiber layer is formed by heating, pressurizing, curing and forming, wherein the carbon fiber layer comprises carbon fibers and resin. The carbon fiber is preferably 12K unidirectional carbon fiber of japan winter beauty co, and the resin is preferably a thermosetting resin, and more preferably an epoxy resin.
The invention also provides application of the metal and carbon fiber composite material prepared by the preparation method in the technical scheme in automobile manufacturing. The metal and carbon fiber composite material is preferably applied to a B column, an anti-collision beam and the like of an automobile. The metal and carbon fiber composite material has better mechanical property and lighter weight, thereby not only ensuring the safety performance of an automobile, but also reducing the overall quality of the automobile.
Claims (10)
1. A preparation method for improving the tensile strength of a metal/CFRP composite material member is characterized by comprising the following steps:
(1) soaking metal in acetone, cleaning in an ultrasonic cleaner at 70 deg.C for 30min to remove surface dust, and performing laser surface treatment on the surface of the metal material with a laser marking machine to obtain modified metal material;
(2) providing a carbon fiber layer, wherein bubbles are not visible to naked eyes in the carbon fiber layer;
(3) laying the carbon fiber layer in the step (2) on the modified surface of the modified metal material in the step (1), and carrying out heating, pressurizing and curing treatment to obtain a steel/carbon fiber composite material component;
the step (1) and the step (2) are not limited by time sequence;
and (3) the carbon fiber layer in the step (2) comprises a T700 carbon fiber reinforcement and FRD-YQ5-01S fast-curing epoxy resin.
2. The method of claim 1, wherein the laser marking machine is an RC1064-F150 laser marking machine.
3. The production method according to claim 1, wherein the carbon fiber is a 12K unidirectional carbon fiber.
4. The method according to claim 1, further comprising, before the surface modification treatment: and carrying out heat treatment on the metal material.
5. The production method according to claim 1, wherein the metal material in step (1) comprises boron steel, aluminum alloy, or 420 steel.
6. The preparation method according to claim 1, wherein the carbon fiber layer in the step (2) is formed by hand pasting of carbon fiber prepreg, and in the hand pasting process, the carbon fiber prepreg needs to be repeatedly compacted to remove air bubbles so as to ensure that the carbon fiber cloth is tightly attached to each other.
7. The production method according to claim 1, wherein the number of carbon fiber layers in the step (2) is 4 to 8.
8. The preparation method according to claim 1 or 7, wherein the temperature of the heating and pressurizing curing treatment is 100 to 150 ℃, the time is 20 to 40min, and the pressure is 25 to 35 t.
9. The metal-carbon fiber composite material obtained by the production method according to any one of claims 1 to 8, which comprises a metal material subjected to laser surface treatment by using a laser marking machine and a carbon fiber layer on the outer surface of the metal material, and is cured by heating and pressing, wherein the carbon fiber layer comprises carbon fibers and a resin.
10. Use of the metal and carbon fiber composite material according to claim 8 in the manufacture of automobiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111298033.5A CN113977990A (en) | 2021-11-04 | 2021-11-04 | Preparation method for improving tensile strength of metal/CFRP composite material member |
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| CN202111298033.5A CN113977990A (en) | 2021-11-04 | 2021-11-04 | Preparation method for improving tensile strength of metal/CFRP composite material member |
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| CN113977990A true CN113977990A (en) | 2022-01-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091039A (en) * | 2022-06-17 | 2022-09-23 | 中国科学院上海光学精密机械研究所 | Laser welding strengthening method for metal and carbon fiber reinforced composite material |
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| CN109228066A (en) * | 2018-09-17 | 2019-01-18 | 南京航空航天大学 | Multidirectional laying carbon fiber enhancement resin base composite material microwave solidification method |
| CN109465535A (en) * | 2018-11-22 | 2019-03-15 | 北京工业大学 | Ultrasonic wave assists aluminium alloy/composite material backfill formula agitating friction to be glued spot welding Joining Technology |
| CN111016324A (en) * | 2019-12-10 | 2020-04-17 | 吉林大学 | Metal and carbon fiber composite material and preparation method and application thereof |
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| CN112497760A (en) * | 2020-11-10 | 2021-03-16 | 北京航空航天大学 | Method for connecting metal and continuous fiber reinforced composite material by laser heating based on metal surface micro-cone structure design and processing |
| CN112810250A (en) * | 2021-02-02 | 2021-05-18 | 河北工业大学 | Metal substrate surface bionic microstructure reinforced fiber metal laminate |
| 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 |
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2021
- 2021-11-04 CN CN202111298033.5A patent/CN113977990A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62124279A (en) * | 1985-11-22 | 1987-06-05 | Mitsubishi Rayon Co Ltd | Surface treatment of fiber reinforced composite material |
| CN105729719A (en) * | 2016-02-17 | 2016-07-06 | 北京航空航天大学 | Metal-plastic mixed thin-wall structure based on mechanical lock-up interface |
| CN109228066A (en) * | 2018-09-17 | 2019-01-18 | 南京航空航天大学 | Multidirectional laying carbon fiber enhancement resin base composite material microwave solidification method |
| CN109465535A (en) * | 2018-11-22 | 2019-03-15 | 北京工业大学 | Ultrasonic wave assists aluminium alloy/composite material backfill formula agitating friction to be glued spot welding Joining Technology |
| CN111016324A (en) * | 2019-12-10 | 2020-04-17 | 吉林大学 | Metal and carbon fiber composite material and preparation method and application thereof |
| CN111873234A (en) * | 2020-06-28 | 2020-11-03 | 江苏大学 | Preparation method of ultrathin continuous fiber reinforced thermoplastic prepreg |
| CN112123789A (en) * | 2020-09-15 | 2020-12-25 | 哈尔滨工业大学（威海） | Laser connection method for metal/carbon fiber reinforced thermoplastic composite material |
| CN112497760A (en) * | 2020-11-10 | 2021-03-16 | 北京航空航天大学 | Method for connecting metal and continuous fiber reinforced composite material by laser heating based on metal surface micro-cone structure design and processing |
| CN112810250A (en) * | 2021-02-02 | 2021-05-18 | 河北工业大学 | Metal substrate surface bionic microstructure reinforced fiber metal laminate |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091039A (en) * | 2022-06-17 | 2022-09-23 | 中国科学院上海光学精密机械研究所 | Laser welding strengthening method for metal and carbon fiber reinforced composite material |
| CN115091039B (en) * | 2022-06-17 | 2024-04-12 | 中国科学院上海光学精密机械研究所 | Laser welding strengthening method for metal and carbon fiber reinforced composite material |
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