CN111469344A - Metal and composite material connecting method based on bionic structure - Google Patents
Metal and composite material connecting method based on bionic structure Download PDFInfo
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- CN111469344A CN111469344A CN202010321028.0A CN202010321028A CN111469344A CN 111469344 A CN111469344 A CN 111469344A CN 202010321028 A CN202010321028 A CN 202010321028A CN 111469344 A CN111469344 A CN 111469344A
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- Prior art keywords
- composite material
- metal
- fine structure
- connection
- connecting method
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
- B29C2043/189—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the parts being joined
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
Abstract
The invention discloses a bionic structure-based metal and composite material connecting method, which is characterized in that a reasonable microstructure is arranged through 3D printing, a physical or chemical method and other metal surface treatment processes are assisted, and a composite material or a base material thereof is filled in a fine structure of the bionic structure by injection molding or mould pressing and other forming means so as to connect a main body structure of a composite material product, so that the structural weight is reduced, and the connecting strength of the composite material is improved. Under the condition of the same connection performance, stress concentration of mechanical connection and abrasion failure of cementation are avoided; in the process of detection and repair, if the fine structure in the metal is not damaged, the metal part can be repeatedly used.
Description
Technical Field
The invention belongs to the technical field of material connection, and particularly relates to a metal and composite material connection method based on a bionic structure.
Background
3D printing, also known as additive manufacturing, is a technology for manufacturing three-dimensional products by 3D printing equipment according to designed 3D models, and has a great role in industrial production and daily life due to high manufacturing flexibility. The lightweight design technology is that the product is reasonably designed in a mode of removing materials or replacing materials and the like according to an original product model, and the requirement of lightening weight is met. At present, the combination of the lightweight technology and the 3D printing technology is that when the lightweight design part of a product structure which cannot be met by the traditional manufacturing process is adopted, the 3D printing technology can be used for quickly manufacturing a product.
The composite material is an effective method for reducing the weight of a product and improving the strength of a finished piece, and the light composite material has larger market application, which is particularly prominent in the aspects of aerospace, automobile manufacturing and the like. The common composite material connecting technology mainly comprises mechanical connection, cementing connection and mixed connection, and the novel technology comprises Z-pin connection and the like. However, the traditional composite material connection technology can cause the defects of stress concentration or adhesion failure and the like, and can not meet the connection requirements of metals and composite materials based on a bionic structure.
Disclosure of Invention
In order to solve the technical problems, the invention provides a metal and composite material connecting method based on metal additive microstructure refilling.
In order to achieve the purpose, the invention adopts the following technical scheme:
a metal and composite material connecting method based on a bionic structure comprises the following steps:
step 1, arranging a fine structure on the surface of a metal joint to be connected;
step 2, carrying out surface treatment on the metal joint;
and 3, filling the composite material into the fine structure, thereby realizing the connection of the metal and the composite material.
Further, in step 1, a fine structure is arranged on the surface of the metal joint by using a 3D printing technology. In order to realize the transmission of physical quantities such as stress strain, a reasonable fine structure needs to be designed so as to ensure the overall connection strength of the product.
Further, the surface treatment process in step 2 is chemical treatment or physical treatment. The surface of the metal microstructure is effectively processed in a physical or chemical processing mode and the like, and the connection between the surface of the microstructure and the composite material is enhanced under the condition of ensuring the performance of the microstructure.
Further, in step 3, the composite material may be filled into the fine structure by injection molding, mold pressing or in-situ curing for connecting the two phase portions.
Further, the metal and the composite material are both light-weight and high-strength materials.
Has the advantages that: the invention can reasonably design the components, takes the additive mode as the main design means, assists the metal surface treatment process such as a physical or chemical method and the like, and fills high-performance other light materials in the fine structure by the forming means such as injection molding or mould pressing and the like to achieve better connection strength. Under the condition of the same performance, the problems of stress concentration of mechanical connection and long-term reliability of cementation can be avoided; according to different composite materials, the stability of the whole structure is strengthened to a certain extent; in the detection and repair process, if the internal fine structure is not damaged, the metal joint part can be repeatedly used, and the maintenance is convenient.
Drawings
FIG. 1 is a technical route of the metal and composite material connection method based on the bionic structure.
Fig. 2 is a three-dimensional perspective view of a metal part in example 1.
Fig. 3 is a three-dimensional perspective view of a composite material portion in example 1.
Fig. 4 is a three-dimensional perspective view of the overall structural distribution in example 1.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
The invention provides a bionic structure-based metal and composite material connecting method, which is used for toughening and reinforcing a product by using a microstructure-based filling method. The specific process is shown in fig. 1, and comprises the following steps:
step 1, arranging a fine structure on the surface of a metal joint to be connected. The internal microstructure with reasonable design is used for transmitting physical quantities such as stress strain and the like, the structure of the internal microstructure needs to ensure the integral connection strength of products, and the requirements of a 3D printing process and other processes are also met.
And 2, performing surface treatment on the metal joint, effectively treating the surface of the metal microstructure in a physical or chemical treatment mode and the like, and enhancing the connection between the surface of the microstructure and the composite material under the condition of ensuring the performance of the microstructure.
And 3, filling the composite material into the fine structure, wherein the filling process needs to reasonably select injection molding, mould pressing, in-situ curing and other modes according to the type of the composite material, so that the connection of the metal and the composite material is realized.
The metal and the composite material are both light high-strength materials.
Through the method, the part can be reasonably designed, the reasonable microstructure is arranged through 3D printing, the metal surface treatment process such as a physical or chemical method is assisted, the main body structure of the composite material product is connected by filling the composite material or the matrix material thereof in the fine structure through the forming means such as injection molding or mould pressing, and the like, so that the structural weight is reduced, and the connection strength of the composite material is improved. Under the condition of the same connection performance, stress concentration of mechanical connection and abrasion failure of cementation are avoided; in the process of detection and repair, if the fine structure in the metal is not damaged, the metal part can be repeatedly used.
Example 1
Fig. 2 is a diagram of a metal joint to be connected according to the present embodiment, which is manufactured by additive manufacturing and includes a solid region and a microstructure region, wherein the solid region performs a specific function, and the microstructure region performs a connection function with a composite material; fig. 3 shows a connecting portion of a composite material, which includes a solid region of the composite material and a filling connection region, wherein the solid region performs a specific function, and the filling connection region is connected with the microstructure region in fig. 2.
Fig. 4 shows the whole of the metal joint and the composite material in this embodiment after connection, the metal region and the composite region are connected by the connection region with the fine structure, and the metal region and the composite region realize their respective functions.
Claims (5)
1. A metal and composite material connection method based on a bionic structure is characterized in that: the method comprises the following steps:
step 1, arranging a fine structure on the surface of a metal joint to be connected;
step 2, carrying out surface treatment on the metal joint;
and 3, filling the composite material into the fine structure, thereby realizing the connection of the metal and the composite material.
2. The connecting method according to claim 1, characterized in that: in the step 1, a fine structure is arranged on the surface of the metal joint by adopting a 3D printing technology.
3. The connecting method according to claim 1, characterized in that: the surface treatment process in the step 2 is chemical treatment or physical treatment.
4. The connecting method according to claim 1, characterized in that: in step 3, the composite material can be filled into the fine structure by injection molding, mold pressing or in-situ curing.
5. The connecting method according to claim 1, characterized in that: the metal and the composite material are both light high-strength materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010321028.0A CN111469344A (en) | 2020-04-22 | 2020-04-22 | Metal and composite material connecting method based on bionic structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010321028.0A CN111469344A (en) | 2020-04-22 | 2020-04-22 | Metal and composite material connecting method based on bionic structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111469344A true CN111469344A (en) | 2020-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010321028.0A Pending CN111469344A (en) | 2020-04-22 | 2020-04-22 | Metal and composite material connecting method based on bionic structure |
Country Status (1)
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| CN (1) | CN111469344A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114013054A (en) * | 2021-11-04 | 2022-02-08 | 哈尔滨理工大学 | Preparation method of metal and plastic composite heterogeneous material based on bionic structure design |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019968A (en) * | 2009-09-11 | 2011-04-20 | 通用汽车环球科技运作公司 | Plastic moulded part for motor vehicle |
| CN103963214A (en) * | 2013-02-05 | 2014-08-06 | 台北科技大学 | Method for bonding aluminum-containing base material and plastic |
| 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 |
| CN108601250A (en) * | 2017-12-29 | 2018-09-28 | 青岛安森克电子有限公司 | A kind of metal decking for human-computer interaction |
-
2020
- 2020-04-22 CN CN202010321028.0A patent/CN111469344A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019968A (en) * | 2009-09-11 | 2011-04-20 | 通用汽车环球科技运作公司 | Plastic moulded part for motor vehicle |
| CN103963214A (en) * | 2013-02-05 | 2014-08-06 | 台北科技大学 | Method for bonding aluminum-containing base material and plastic |
| 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 |
| CN108601250A (en) * | 2017-12-29 | 2018-09-28 | 青岛安森克电子有限公司 | A kind of metal decking for human-computer interaction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114013054A (en) * | 2021-11-04 | 2022-02-08 | 哈尔滨理工大学 | Preparation method of metal and plastic composite heterogeneous material based on bionic structure design |
| CN114013054B (en) * | 2021-11-04 | 2024-05-28 | 哈尔滨理工大学 | Preparation method of metal and plastic composite heterogeneous material based on bionic structure design |
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Application publication date: 20200731 |