CN114012254A - Dissimilar material joint of resin material and metal material, preparation method and vehicle - Google Patents
Dissimilar material joint of resin material and metal material, preparation method and vehicle Download PDFInfo
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- CN114012254A CN114012254A CN202111284567.2A CN202111284567A CN114012254A CN 114012254 A CN114012254 A CN 114012254A CN 202111284567 A CN202111284567 A CN 202111284567A CN 114012254 A CN114012254 A CN 114012254A
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- 239000000463 material Substances 0.000 title claims abstract description 143
- 239000011347 resin Substances 0.000 title claims abstract description 101
- 229920005989 resin Polymers 0.000 title claims abstract description 101
- 239000007769 metal material Substances 0.000 title claims abstract description 90
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 143
- 239000002184 metal Substances 0.000 claims abstract description 143
- 239000011248 coating agent Substances 0.000 claims abstract description 54
- 238000000576 coating method Methods 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 52
- 238000003466 welding Methods 0.000 claims abstract description 41
- 239000002923 metal particle Substances 0.000 claims abstract description 40
- 229910001111 Fine metal Inorganic materials 0.000 claims abstract description 38
- 238000005507 spraying Methods 0.000 claims abstract description 29
- 238000005304 joining Methods 0.000 claims abstract description 21
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 230000035515 penetration Effects 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 73
- 238000005253 cladding Methods 0.000 claims description 11
- 239000011247 coating layer Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000010288 cold spraying Methods 0.000 claims description 7
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 65
- 239000000956 alloy Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000011365 complex material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- 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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/04—Impact or kinetic deposition of particles
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a dissimilar material joint of a resin material and a metal material, a preparation method and a vehicle. The preparation method comprises the following steps: fixing a resin material; spraying fine metal particles on the upper surface of the resin material to form a metal coating on the upper surface of the resin material; attaching the lower surface of a metal material to the upper surface of the metal coating; welding the metal material and the metal coating together by utilizing a laser welding technology, and enabling the penetration of the welding part to be a preset depth to obtain a dissimilar material joint piece formed by joining the resin material and the metal material together; the preset depth is greater than or equal to the sum of half of the thickness of the metal coating and the thickness of the metal material. The method is simple, high in efficiency and suitable for large-scale production, and the prepared dissimilar material joint piece is high in joint strength.
Description
Technical Field
The invention relates to the technical field of vehicle manufacturing, in particular to a dissimilar material joint of a resin material and a metal material, a preparation method and a vehicle.
Background
With the demand for weight reduction in the automotive and aerospace fields, joining techniques of metal materials and resin materials are being increasingly studied. In the prior art, there is a technique of joining a metal material and a resin material by friction spot welding and self-propagating joining. However, this connection method has the following disadvantages:
1) the welding process is complex and the cost is high. The preparation cost of the self-propagating reaction powder is high, and the self-propagating reaction powder needs to be uniformly paved between the carbon fiber composite material and the metal material, which is difficult to realize on the surface of a complex material.
2) The quality stability is not high, the self-propagating reaction process is fast, heat loss is possibly different due to the advance of combustion waves, non-equilibrium phase or metastable phase can occur in the combustion process, and sintering is easy.
3) The efficiency is lower, need evenly to pave self-propagating reaction powder earlier stage, and after anchor clamps step up, the 50mm interval just needs to carry out stirring head friction spot welding, and self-propagating reaction powder is from being ignited to the self-propagating reaction completion in-process, and the stirring head inserts in metal and carbon fiber material all the time, and the holding time that the stirring head inserted the metal needs 3s-15s time, and whole process is inefficient, and the time is of a specified duration.
At present, there is also a technique of spraying a metal material onto a surface of a metal member to form a sprayed layer on the surface of the metal member, the sprayed layer having a plurality of fine holes on the surface, inserting the metal member into a molding die, injecting a molten resin into the die and cooling, the resin intruding into the fine holes on the surface of the sprayed layer to bond with the metal member. However, in this technique, the sprayed layer formed of the metal material is melted only with the surface of the metal member, resulting in poor bonding strength between the metal member and the sprayed layer.
Disclosure of Invention
An object of the present invention is to provide a method for producing a dissimilar material joining member, which is simple and can be mass-produced.
A further object of the present invention is to improve the joining strength of the dissimilar material joining member.
Particularly, the invention provides a method for preparing a dissimilar material joint of a resin material and a metal material, which comprises the following steps:
fixing a resin material;
spraying fine metal particles on the upper surface of the resin material to form a metal coating on the upper surface of the resin material;
attaching the lower surface of a metal material to the upper surface of the metal coating;
welding the metal material and the metal coating together by utilizing a laser welding technology, and enabling the penetration of the welding part to be a preset depth to obtain a dissimilar material joint piece formed by joining the resin material and the metal material together;
the preset depth is greater than or equal to the sum of half of the thickness of the metal coating and the thickness of the metal material.
Optionally, the preset depth is equal to the sum of the thickness of the metal material and the thickness of the metal coating.
Optionally, the shape of the weld of the laser welding technique is one or a combination of a straight line, a circle, a C-shape, a spiral, an unsealed ring, a wave, a rectangle, an S-shape and a diamond.
Optionally, the spraying fine metal particles on the upper surface of the resin material to form a metal coating on the upper surface of the resin material includes:
spraying the fine metal particles on the upper surface of the resin material by a cladding method to form the metal coating on the upper surface of the resin material;
optionally, the thickness of the metal coating is any value in the range of 0.2mm to 5 mm.
Optionally, the spraying fine metal particles on the upper surface of the resin material to form a metal coating on the upper surface of the resin material includes:
a first metal film layer forming step: spraying first fine metal particles on the upper surface of the resin material by using a cladding method so as to form a first metal film layer on the upper surface of the resin material;
a second metal film layer forming step: spraying second fine metal particles on the upper surface of the first metal film layer by using a cold spraying method to form a second metal film layer on the upper surface of the resin material;
the metal coating includes the first metal film layer and the second metal film layer.
Optionally, the preparation method further comprises the following steps: the second metal film layer forming step is repeatedly performed to form a plurality of stacked second metal film layers on the upper surface of the first metal film layer.
Optionally, the thicknesses of the first metal film layer and the second metal film layer are both any value in the range of 0.2mm-5 mm.
Particularly, the invention also provides a dissimilar material joint prepared by the preparation method, which comprises a resin material, a metal material and a metal coating connected between the resin material and the metal material.
Optionally, the metal coating and the metal material are made of the same metal material.
In particular, the present invention also provides a vehicle including a target member constructed from the dissimilar material joining member described above.
According to the scheme of the invention, the metal coating is formed on the surface of the resin material, the lower surface of the metal material is attached to the upper surface of the metal coating, and the metal material and the metal coating are welded together by utilizing the laser welding technology, so that the metal material and the resin material are jointed together. The method breaks through the technical prejudice that the traditional method, namely the method is formed to a certain extent, namely, the method carries out surface treatment on one side of the metal material to complete the joint of the resin material and the metal material, thereby leading the method to have breakthrough progress. The method of the invention carries out plating treatment on the side of the resin material, and the penetration depth of the welding part is more than or equal to the sum of half of the thickness of the metal coating and the thickness of the metal material, namely, the welding part penetrates through the metal material and at least reaches half of the thickness of the metal coating. The laser welding technology is very fast, high in efficiency and very stable in quality, and is suitable for large-scale production.
Further, in the method of spraying fine metal particles on the upper surface of the resin material by the cladding method, the temperature of the fine metal particles is increased, which makes the shape of the fine metal particles more likely to become flat during the spraying process, so that the contact area between the resin material and the metal particles is larger, and the adhesion strength of the resin material and the metal particles is further improved, that is, by the method, the resin material and the metal coating can be bonded very tightly, and the bonding strength of the resin material and the metal coating is high.
Further, the second fine metal particles are sprayed on the upper surface of the first metal film layer by the cold spraying method, and since the temperature in the cold spraying method is low, the second fine metal particles are not easily deformed, and a thick film is more easily formed, and the thick film is more closely bonded to the metal material than the thin film, the structure in which the second metal film layer is formed on the upper surface of the first metal film layer can be very closely bonded to the resin material on the one hand, and can be very closely bonded to the metal material on the other hand.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic flow chart showing a method of producing a dissimilar material joint of a resin material and a metal material according to one embodiment of the present invention;
fig. 2 is a schematic structural view showing a dissimilar material joint of a resin material and a metal material according to a first embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view illustrating the shape of a weld of a laser welding technique according to a first embodiment of the present invention;
fig. 4 is a schematic structural view showing a dissimilar material joint of a resin material and a metal material according to a second embodiment of the present invention;
in the figure: 1-resin material, 2-metal coating, 21-first metal film layer, 22-second metal film layer, 3-metal material and 4-welding part.
Detailed Description
Fig. 1 is a schematic flowchart showing a method of producing a dissimilar material joint of a resin material and a metal material according to one embodiment of the present invention. As shown in fig. 1, the preparation method comprises:
step S100, fixing a resin material;
step S200, spraying fine metal particles on the surface of a resin material to form a metal coating on the surface of the resin material;
step S300, attaching the lower surface of the metal material to the upper surface of the metal coating;
step S400, welding the metal material and the metal coating together by utilizing a laser welding technology, and enabling the penetration of the welding part to be a preset depth to obtain a dissimilar material joint in which the resin material and the metal material are jointed together; the preset depth is greater than or equal to the sum of half of the thickness of the metal coating and the thickness of the metal material.
According to the scheme of the invention, the metal coating is formed on the surface of the resin material, the lower surface of the metal material is attached to the upper surface of the metal coating, and the metal material and the metal coating are welded together by utilizing the laser welding technology, so that the metal material and the resin material are jointed together. The method breaks through the technical prejudice that the traditional method, namely the method is formed to a certain extent, namely, the method carries out surface treatment on one side of the metal material to complete the joint of the resin material and the metal material, thereby leading the method to have breakthrough progress. The method of the invention carries out plating treatment on the side of the resin material, and the penetration depth of the welding part is more than or equal to the sum of half of the thickness of the metal coating and the thickness of the metal material, namely, the welding part penetrates through the metal material and at least reaches half of the thickness of the metal coating. The laser welding technology is very fast, high in efficiency and very stable in quality, and is suitable for large-scale production.
The following is a detailed description of specific embodiments:
the first embodiment is as follows:
the preparation method in the first embodiment includes the steps S100 to S400. Fig. 2 is a schematic structural view showing a different material joining member of a resin material and a metal material according to a first embodiment of the present invention. As shown in fig. 2, the dissimilar material joining member prepared by steps S100 to S400 includes a resin material 1, a metal material 3, and a metal coating layer 2 connected between the resin material 1 and the metal material 3.
In step S100, the resin material 1 may be a thermoplastic resin or a thermosetting resin, and may be a carbon fiber composite resin material 1, for example. The resin material 1 may be in the form of a plate, and the thickness thereof is not limited. The resin material 1 may be, for example, a thermoplastic resin or a thermosetting resin, and may be, for example, a carbon fiber resin material 1.
In step S200, the material of the fine metal particles may be selected from a metal material that can be solid-phase bonded to the metal material 3, and is preferably a metal material homologous to the metal material 3, and for example, if the material of the metal material 3 is an aluminum alloy material, the material of the fine metal particles may also be an aluminum alloy material, or may be another aluminum alloy. If the material of the metal material 3 is an iron alloy material, the material of the fine metal particles may be an iron alloy material, or may be another iron-based alloy material. If the material of the metal material 3 is a nickel alloy material, the material of the fine metal particles is also another nickel alloy material.
In this example, fine metal particles were sprayed on the upper surface of the resin material 1 by a cladding method. The cladding method is selected as a cladding spraying method capable of generating high-temperature gas, and may be plasma spraying, arc spraying, or the like. The thickness of the metal coating 2 is in the range of any value from 0.2mm to 5mm, for example 0.2mm, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5 mm.
By using the cladding spraying method, the temperature of the fine metal particles is increased in the spraying process, the fine metal particles are easy to deform, and the particles deform into a flat shape under the spraying impact, so that a large contact area can be obtained between the resin material 1 and the fine metal particles, and the adhesion strength is further improved. It is understood that the fine metal particles are deformed only by the temperature rise and the impact force during the spraying, and are not easily deformed at a low temperature or without the impact force. Therefore, by spraying fine metal particles on the upper surface of the resin material 1 by the cladding method, the resin material 1 and the metal coating layer 2 can be bonded very tightly, and the bonding strength between the two is very high.
In step S300, "bonding" means that the metal material 3 and the metal coating layer 2 are in contact with each other and are in close contact with each other. The thickness of the metal material 3 is not particularly limited, but the metal material 3 is preferably more than 0mm and not more than 2mm, for example, 0.2mm, 0.5mm, 0.8mm, 1.2mm, 1.5mm, 1.8mm or 2mm, in order to allow the metal coating layer 2 to be closely adhered. The shape of the metal material 3 is preferably plate-like.
In the step S400, the laser is emitted from above the metal material 3 toward the metal material 3, so as to form a welding portion 4 on the metal material 3 and the metal coating 2, the welding portion 4 extends downward from the upper surface of the metal material 3 into the metal coating 2, the thickness of the welding portion 4 is the penetration depth, and in a most preferred embodiment, the penetration depth of the welding portion 4 is equal to the sum of the thickness of the metal material 3 and the thickness of the metal coating 2. That is, the welded portion 4 extends from the upper surface of the metal material 3 to the lower surface of the metal coating 2. Here, it should be noted that the lower end of the welding portion 4 may be located at the interface between the metal coating 2 and the resin material 1, and most preferably, is located at the lowest end of the metal coating 2 but does not break through the lowest end of the metal coating 2, i.e., does not touch the resin material 1, so that the thermal influence of the resin material 1 can be minimized to prevent the bonding strength with the metal coating 2 from being affected, and the bonding strength of the obtained dissimilar material joint is the highest.
The shape of the weld of the laser welding technique may be one or a combination of straight line, circle, C-shape, spiral, unsealed ring, wave, rectangle, S-shape and diamond as shown in fig. 3. The shape of the weld bead also affects the joining strength of the dissimilar material joined member, and the above-mentioned shape of the weld bead is preferably selected for a dissimilar material joined member having high joining strength.
In order to minimize the thermal influence of the resin material 1, it is necessary to select an optimal welding condition. In general, the welding conditions are different depending on the material, shape, and the like of the resin material 1 and the metal material 3, that is, the optimum welding conditions are different depending on the material, shape, and the like of the resin material 1 and the metal material 3. The welding conditions include a heat source, output power, welding speed, welding power, diameter of 4 bits of the welded portion, and gap between the metal coating 2 and the metal material 3, for example, the welding speed is 60 to 120mm/s, the welding power is 3.75 to 5kW, and the upper limit of the pressure roller pressure of the laser welder is 2.5 to 3bar and the lower limit is 1.5 to 4 bar.
In particular, the present invention further provides a dissimilar material joining member, which is prepared by the above preparation method, and the characteristics of the dissimilar material joining member correspond to those described in the preparation method one to one, and are not described herein again.
In particular, the present invention also provides a vehicle including a target member constructed from the dissimilar material joining member described above. The target member may be any structural member that can be used in a vehicle manufacturing process for such a material member, and for example, the target member is a vehicle outer panel, a structural member for interior and exterior trim, a mechanical product used for a control system, a drive system, and the like.
Here, the dissimilar material joining member can be applied to a product in which the resin material 1 and the high-strength metal material 3, which are excellent in productivity and novelty, are combined in the civil engineering field, the household appliance field, the building field, and the like, in addition to the vehicle.
Example two:
the difference between the second embodiment and the first embodiment is that the specific steps in step S200 are different, that is, the finally prepared metal coating 2 is different, and the structure of the finally obtained dissimilar material joint member is also changed accordingly. As shown in fig. 4, in this embodiment, the step S200 includes a first metal film layer 21 forming step and a second metal film layer 22 forming step. The first metal film layer 21 is formed by spraying first fine metal particles on the upper surface of the resin material 1 by a cladding method to form the first metal film layer 21 on the upper surface of the resin material 1. The second metal film layer 22 is formed by spraying second fine metal particles on the upper surface of the first metal film layer 21 by a cold spray method to form the second metal film layer 22 on the upper surface of the resin material 1. The metal coating 2 includes a first metal film layer 21 and a second metal film layer 22. The thickness of the first metal film layer 21 and the second metal film layer 22 is any value in the range of more than 0.2mm and less than 1.5mm, and may be, for example, 0.2mm, 0.5mm, 1mm, 1.2mm, or 1.5 mm.
In this embodiment, the second metal film layer 22 is formed by spraying using a cold spraying method, such as supersonic cold spraying, which is operated by blowing at a high speed higher than the speed of sound. It is understood that in the cold spray method, the second fine metal particles are not easily deformed, and therefore, a thick film is easily formed on the surface of the first metal film layer 21, and the thick film is more easily adhered to the metal material 3 than the thin film. The reason why the second fine metal particles are suitably formed on the upper surface of the first metal film layer 21 and are not suitable for being directly formed on the upper surface of the resin material 1 is that the second metal film layer 22 is formed by spraying by a cold spraying method in which the temperature is low, the second fine metal particles are not easily deformed, and the resin is soft, if the second fine metal particles are suitably formed on the upper surface of the resin material 1, the second fine metal particles are not easily deformed at the time of spraying impact of the second fine metal particles on the resin material 1, so that the bonding between the second fine metal particles and the resin material 1 is not tight, and the formed second metal film layer 22 is easily detached from the upper surface of the resin material 1. Therefore, the second metal film layer 22 is not suitable for being directly formed on the upper surface of the resin material 1. Since the second metal film 22 and the first metal film 21 are made of the same material as the metal material, and the two are easily bonded together, the second metal film 22 is more suitable for being formed on the first metal film 21. Although the first metal film layer 21 can be tightly bonded to the resin material 1, the first metal film layer 21 cannot be tightly bonded to the metal material 3 because it is not easy to form a thick film, and the second metal film layer 22 can just compensate for this defect.
Therefore, in the embodiment of the present invention, the first metal film layer 21 can be bonded to the resin material 1 very well, the second metal film layer 22 can be bonded to the first metal film layer 21 tightly, and the second metal film layer 22 can be bonded to the metal material 3 better because it is easy to form a thick film, and therefore, the first metal film layer 21 and the second metal film layer 22 supplement each other, and finally, the bonding strength between the resin material 1 and the metal material 3 can be made very high.
Example three:
the difference between the third embodiment and the second embodiment is that in the third embodiment, the specific steps in step S200 are different, that is, the finally prepared metal coating 2 is different, and the structure of the finally-caused dissimilar material joint is also changed accordingly. In this embodiment, the step S200 includes a second metal film layer forming step repeatedly performed, and the finally prepared metal coating 2 includes a first metal film layer 21 and a plurality of second metal film layers 22 formed on the first metal film layer 21. For example, there may be two second metal film layers 22, three second metal film layers 22, four second metal film layers 22, or more second metal film layers 22. In this way, the thickness of the one first metal film layer 21 and the plurality of second metal film layers 22 is thicker than the thickness of the one first metal film layer 21 and the one second metal film layer 22 in the second embodiment, and the finally formed metal coating layer 2 can be bonded to the metal material 3 better.
Example four:
the fourth embodiment is different from the first embodiment in that the dissimilar material joining member includes one resin material layer 1 and two or more metal materials 3, and the two or more metal materials 3 are adjacently disposed.
Thus, it should be understood by those skilled in the art that while various exemplary embodiments of the present invention have been illustrated and described in detail herein, many other variations or modifications which conform to the general principles of the invention may be directly determined or derived from the disclosure herein without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A method for preparing a dissimilar material joint of a resin material and a metal material is characterized by comprising the following steps:
fixing a resin material;
spraying fine metal particles on the upper surface of the resin material to form a metal coating on the upper surface of the resin material;
attaching the lower surface of a metal material to the upper surface of the metal coating;
welding the metal material and the metal coating together by utilizing a laser welding technology, and enabling the penetration of the welding part to be a preset depth to obtain a dissimilar material joint piece formed by joining the resin material and the metal material together;
the preset depth is greater than or equal to the sum of half of the thickness of the metal coating and the thickness of the metal material.
2. The production method according to claim 1, wherein the predetermined depth is equal to a sum of a thickness of the metal material and a thickness of the metal coating layer.
3. The method of claim 1, wherein the shape of the weld of the laser welding technique is one or a combination of a straight line, a circle, a C-shape, a spiral, an unclosed ring, a wave, a rectangle, an S-shape, and a diamond.
4. The production method according to any one of claims 1 to 3, wherein the spraying of fine metal particles on the upper surface of the resin material to form a metal coating layer on the upper surface of the resin material, comprises the steps of:
spraying the fine metal particles on the upper surface of the resin material by a cladding method to form the metal coating on the upper surface of the resin material;
optionally, the thickness of the metal coating is any value in the range of 0.2mm to 5 mm.
5. The production method according to any one of claims 1 to 3, wherein the spraying of fine metal particles on the upper surface of the resin material to form a metal coating layer on the upper surface of the resin material, comprises the steps of:
a first metal film layer forming step: spraying first fine metal particles on the upper surface of the resin material by using a cladding method so as to form a first metal film layer on the upper surface of the resin material;
a second metal film layer forming step: spraying second fine metal particles on the upper surface of the first metal film layer by using a cold spraying method to form a second metal film layer on the upper surface of the resin material;
the metal coating includes the first metal film layer and the second metal film layer.
6. The method of claim 5, further comprising the steps of: the second metal film layer forming step is repeatedly performed to form a plurality of stacked second metal film layers on the upper surface of the first metal film layer.
7. The production method according to claim 6, wherein the thickness of each of the first metal film layer and the second metal film layer is any value in a range of 0.2mm to 5 mm.
8. A dissimilar material joining member produced by the production method according to any one of claims 1 to 7, comprising a resin material, a metal material and a metal coating layer joined between the resin material and the metal material.
9. The dissimilar material joining member according to claim 8, wherein the metal coating layer and the metal material are the same metal material.
10. A vehicle comprising a target constructed from the dissimilar material joint of claim 8 or 9.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012255513A (en) * | 2011-06-10 | 2012-12-27 | Fts:Kk | Structure for joining metal member to synthetic resin |
| CN104968483A (en) * | 2013-02-05 | 2015-10-07 | 株式会社日立制作所 | Laser joining apparatus and laser joining method |
| CN105500823A (en) * | 2014-10-15 | 2016-04-20 | 深圳富泰宏精密工业有限公司 | Preparation method of complex of metal and resin |
| CN111172525A (en) * | 2020-01-08 | 2020-05-19 | 中国科学院宁波材料技术与工程研究所 | Method for connecting heterogeneous materials by cold spraying |
| CN112469529A (en) * | 2018-07-19 | 2021-03-09 | 株式会社神户制钢所 | Method for manufacturing dissimilar material joined structure, and dissimilar material joined structure |
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2021
- 2021-11-01 CN CN202111284567.2A patent/CN114012254B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012255513A (en) * | 2011-06-10 | 2012-12-27 | Fts:Kk | Structure for joining metal member to synthetic resin |
| CN104968483A (en) * | 2013-02-05 | 2015-10-07 | 株式会社日立制作所 | Laser joining apparatus and laser joining method |
| CN105500823A (en) * | 2014-10-15 | 2016-04-20 | 深圳富泰宏精密工业有限公司 | Preparation method of complex of metal and resin |
| CN112469529A (en) * | 2018-07-19 | 2021-03-09 | 株式会社神户制钢所 | Method for manufacturing dissimilar material joined structure, and dissimilar material joined structure |
| CN111172525A (en) * | 2020-01-08 | 2020-05-19 | 中国科学院宁波材料技术与工程研究所 | Method for connecting heterogeneous materials by cold spraying |
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