KR102529372B1 - Joining structure of different kinds materials using rivet for joining different kinds materials - Google Patents

Abstract

A rivet for joining different materials is disclosed. The disclosed rivet for joining dissimilar materials is for integrally joining a plate material of steel material and a plate material of non-ferrous material, i) a head in the form of a flat head forming a plane on the upper and lower surfaces based on the vertical direction, and ii) a hollow It has a body part integrally connected to the lower surface of the head part and penetrating the plate material of non-ferrous material.

Description

Structure for joining heterogeneous materials using rivets for joining heterogeneous materials

Embodiments of the present invention relate to a heterogeneous material bonding structure using a rivet for bonding different materials, and more particularly, to a heterogeneous material bonding structure using a rivet for bonding heterogeneous materials to integrally bond heterogeneous materials of a steel material and a non-ferrous material. It is about.

Recently, in accordance with the trend of high-strength and lightweight car bodies, as car body materials, steel plates such as ultra-high-strength steel, non-ferrous metal plates such as aluminum and magnesium, as well as fiber reinforced plastics (FRP: Fiber Reinforced Plastic) and carbon fiber reinforced plastics (CFRP: Cases of applying plastic composite plates such as CARBON FIBER REINFORCED PLASTICS and glass fiber reinforced plastics (GFRP: GLASS FIBER REINFORCED PLASTICS) have become frequent.

In order to manufacture such a non-ferrous material plate and apply the non-ferrous material plate to a vehicle body, it is necessary to be able to bond the non-ferrous material plate and the steel material plate, but laser welding or spot welding is impossible due to the physical properties of the two materials. This is because the melting point of the non-ferrous plate and the steel plate are different or electrical conduction is not possible.

Accordingly, in the industry, a non-ferrous material plate and a steel plate are joined by a very limited bonding method of a bonding method using a structural adhesive or a mechanical bonding method using fastening parts such as bolts or rivets.

However, in order to join dissimilar materials using the above method, the investment cost may increase because new joining facilities for applying bolting, riveting, and bonding methods in addition to the existing spot welding facilities must be installed in the body production plant. In addition, the production period is also longer compared to the conventional spot welding method.

In order to solve these problems, recently, a REW (Resistance Element Welding) device inserts a steel element (also referred to as "steel resistance element" in the industry) into a non-ferrous plate material and spot-welds the steel element and the steel plate material. A welding method using is applied.

However, this REW device requires an additional device for supplying a separate steel element to be inserted to prevent galvanic corrosion and hole processing for inserting the steel element into a non-ferrous plate material, depending on the thickness of the non-ferrous material plate material. Steel elements of different specifications are required, and each equipment for supplying the steel elements according to specifications is required, resulting in an increase in investment cost and an increase in the size of the process equipment. In addition, the existing REW device has a complicated process including a moving device and a control device, so there is a difficulty in maintenance.

Furthermore, the joining method of dissimilar materials using the REW device as described above is the over-welding of the steel element and the steel plate due to the dispersion of the position of the steel element inserted into the non-ferrous material plate, so that the non-ferrous material such as aluminum melts and Welding quality problems such as mixing with

The matters described in the background art section as described above are prepared to enhance understanding of the background of the invention, and may include matters other than those of the prior art that are already known to those skilled in the art.

Embodiments of the present invention provide a heterogeneous material joining structure in which a single rivet is fastened to a non-ferrous plate member and the rivet and a steel plate member are spot-welded using an existing spot welding device.

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In an embodiment of the present invention, a rivet for joining different materials is for integrally joining a plate material of steel material and a plate material of non-ferrous material, i) a head in the form of a flat head forming a plane on the upper and lower surfaces based on the vertical direction and ii) a body portion having a hollow, integrally connected to the lower surface of the head portion, and penetrating the non-ferrous plate material.

In addition, in the rivet for joining dissimilar materials according to an embodiment of the present invention, the head portion may support an upper surface of an edge of the through hole of the non-ferrous material plate.

In addition, in the rivet for joining dissimilar materials according to an embodiment of the present invention, the free end of the body portion is plastically deformed, and may support the lower surface of the edge of the through hole of the non-ferrous material plate.

In addition, in the rivet for joining dissimilar materials according to an embodiment of the present invention, a piercing protrusion for piercing the non-ferrous material plate may be formed at a free end of the body part.

In addition, in the rivet for joining dissimilar materials according to an embodiment of the present invention, an upper surface of the head portion may be spot welded to the steel plate material.

In addition, in the rivet for joining different materials according to an embodiment of the present invention, the rivet is made of a steel material, and a plating layer of aluminum or zinc material coated on the surface of the steel material may be formed.

In addition, in the heterogeneous material bonding structure according to an embodiment of the present invention, a steel plate and a non-ferrous plate are integrally joined, and the body of the rivet is formed between the steel plate and the non-ferrous plate. passes through the plate, the head of the rivet supports one side of the edge of the through-hole of the non-ferrous plate, the through end of the body is plastically deformed and supports the other side of the edge of the through-hole of the plate of non-ferrous material, A sheet material may be spot welded to the head of the rivet.

In addition, in the dissimilar material bonding structure according to an embodiment of the present invention, the body of the rivet may pass through a free hole formed in the non-ferrous material plate.

In addition, in the dissimilar material bonding structure according to an embodiment of the present invention, the body of the rivet may pierce and penetrate the non-ferrous material plate through a piercing protrusion provided at a through end.

In addition, in the dissimilar material bonding structure according to an embodiment of the present invention, the head of the rivet may be provided in the form of a flat head forming a plane on both sides.

In addition, in the dissimilar material bonding structure according to an embodiment of the present invention, the body portion of the rivet may have a hollow body and may be integrally connected to the head portion.

In addition, in the dissimilar material bonding structure according to an embodiment of the present invention, a fixed electrode of a spot welding device is positioned in the hollow of the body portion, and the fixed electrode may contact the center of the head portion.

In addition, in the heterogeneous material bonding structure according to an embodiment of the present invention, the non-ferrous plate member may form a concave portion protruding downward, and the steel plate member may form flat upper and lower surfaces.

In addition, in the dissimilar material bonding structure according to an embodiment of the present invention, the body portion of the rivet may pass through the concave portion and support a bottom surface of an edge of the penetrating portion of the concave portion.

In addition, in the dissimilar material bonding structure according to an embodiment of the present invention, the head of the rivet may be disposed on the same plane as the upper surface of the non-ferrous material plate member by the concave portion.

In addition, in the heterogeneous material bonding structure according to an embodiment of the present invention, the upper surface of the head of the rivet and the upper surface of the nonferrous material plate may be in contact with the lower surface of the steel material plate.

In addition, in the heterogeneous material bonding structure according to an embodiment of the present invention, the steel plate member may form a convex portion protruding upward, and the non-ferrous plate member may form flat upper and lower surfaces.

In addition, in the dissimilar material bonding structure according to an embodiment of the present invention, the body of the rivet penetrates the non-ferrous plate material and supports the lower edge of the through portion, and the head of the rivet is the convex part of the steel plate material. It can be placed in the inner space.

In addition, in the heterogeneous material bonding structure according to an embodiment of the present invention, the upper surface of the head of the rivet may be in contact with the inner upper surface of the convex portion, and the upper surface of the non-ferrous material plate may be in contact with the lower surface of the steel material plate. .

In addition, in the heterogeneous material bonding structure according to an embodiment of the present invention, the steel plate may include any one of a steel plate, a stainless steel plate, a high-tensile steel plate, and an ultra-high-strength steel plate.

In addition, in the heterogeneous material bonding structure according to an embodiment of the present invention, the non-ferrous material plate may include any one of an aluminum plate, a magnesium plate, and a plastic composite material plate.

Unlike the prior art in which metal plates of different materials are joined using a REW device through steel elements of various sizes, the embodiments of the present invention fasten a single rivet to a plate of non-ferrous material and use an existing spot welding device. Since the plates of different materials are bonded together, the process is simple and there is an effect of reducing equipment investment costs.

Furthermore, in the embodiment of the present invention, it is not necessary to form a joining hole in the non-ferrous plate material, and since the plate material of different materials can be joined through a single rivet regardless of the thickness of the non-ferrous material plate material, productivity can be increased. and can reduce production costs.

In addition, in the embodiment of the present invention, when an aluminum material is used as a non-ferrous plate material, the body of the rivet is fastened to the non-ferrous plate material, and the head part and the steel plate material are spot-welded, so that the position dispersion of the rivet can be minimized. In addition, it is possible to improve welding quality problems such as melting of non-ferrous materials due to over-welding of rivets and steel plates due to dispersion of rivets.

In addition, effects that can be obtained or predicted due to the embodiments of the present invention will be directly or implicitly disclosed in the detailed description of the embodiments of the present invention. That is, various effects expected according to an embodiment of the present invention will be disclosed within the detailed description to be described later.

Since these drawings are for reference in explaining exemplary embodiments of the present invention, the technical idea of the present invention should not be construed as being limited to the accompanying drawings.
1 is a cross-sectional view showing a heterogeneous material bonding structure according to an embodiment of the present invention.
2 is a perspective view illustrating a rivet applied to a heterogeneous material bonding structure according to an embodiment of the present invention.
Figure 3 (a) and (b) is a cross-sectional view showing a rivet applied to the heterogeneous material bonding structure according to an embodiment of the present invention.
4 to 6 are views for explaining a bonding process of a heterogeneous material bonding structure using a rivet 200 for bonding heterogeneous materials according to an embodiment of the present invention.
7 (a) and (b) are diagrams illustrating a structure for bonding heterogeneous materials using rivets for bonding heterogeneous materials according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar components throughout the specification.

Since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to what is shown in the drawings, and the thickness is enlarged to clearly express various parts and regions.

And, in the following detailed description, the names of the components are divided into first, second, etc. to classify them based on the relationship in which the components are the same, and the order is not necessarily limited in the following description.

Throughout the specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

In addition, terms such as "...unit", "...means", "...part", and "...member" described in the specification refer to a comprehensive unit that performs at least one function or operation. it means.

1 is a cross-sectional view showing a heterogeneous material bonding structure according to an embodiment of the present invention.

Referring to FIG. 1, in the heterogeneous material bonding structure 100 according to an embodiment of the present invention, a plate member 1 of a steel material and a plate member 2 of a nonferrous material are integrally bonded as heterogeneous materials to promote weight reduction of a vehicle body. It is a combined body and can be composed of parts for body assembly such as body panels.

For example, in the heterogeneous material bonding structure 100 according to an embodiment of the present invention, a steel plate 1 and a non-ferrous plate 2 can be joined using a spot welding method through hardware parts made of steel. .

As described above, the heterogeneous bonding structure 100 is not limited to being applied to a vehicle body panel, but may be applied to various vehicle body structures such as a vehicle body member and a vehicle body frame.

Furthermore, it should not be understood that the scope of protection of the present invention is limited to heterogeneous material junctions of vehicle body assembly parts, and the technical idea of the present invention can be applied to junctions of heterogeneous materials employed in structures of various types and uses. .

Here, the steel plate 1 may include, for example, a steel plate, a stainless steel plate, a high-tensile steel plate, and an ultra-high-strength steel plate. And the plate material 2 of the non-ferrous material may include, for example, an aluminum plate material, a magnesium plate material, and a plastic composite material plate material.

Hereinafter, based on the drawing, the plate 1 of the steel material is superimposed on the plate 2 of the non-ferrous material, and the plate 1 of the steel material and the plate 2 of the non-ferrous material are integrally bonded to join different materials. An example of manufacturing the structure 100 will be described.

However, the definition of the direction as described above is in a relative sense, and the direction may vary depending on the reference position of the steel material plate 1 and the nonferrous material plate 2 and the bonding direction of the bonding device, so the above direction is the present embodiment. It is not necessarily limited to the reference direction of the example.

Unlike the prior art of joining dissimilar materials through a steel element using a REW device, the heterogeneous material bonding structure 100 according to an embodiment of the present invention uses a flat-headed hollow rivet 200 to plate a steel material It consists of a structure that can join (1) and the plate material (2) of non-ferrous material by a spot welding method.

2 is a perspective view showing rivets applied to a heterogeneous material bonding structure according to an embodiment of the present invention, and FIG. 3 (a) and (b) are rivets applied to a heterogeneous material bonding structure according to an embodiment of the present invention. It is a cross-sectional configuration diagram showing.

Referring to FIGS. 2 and 3 together with FIG. 1 , the rivet 200 applied to the dissimilar material bonding structure 100 according to an embodiment of the present invention basically includes a head part 10 and a body part 30 contains Such a rivet 200 is made of a steel material, and forms a plating layer (C) of aluminum or zinc material coated on the surface of the steel material.

The reason why aluminum plating (ALMAC) or zinc plating (ZnNi) is coated on the surface of the steel material of the rivet 200 in this way is that the rivet 200 made of different materials, that is, steel material, and non-ferrous material (eg, aluminum material) ) to prevent galvanic corrosion due to the combination of

In an embodiment of the present invention, the head part 10 supports the upper surface of the non-ferrous plate material 2, and the upper surface of the head part 10 can be spot-welded with the plate material 1 made of steel. When referring to the drawing, the head portion 10 is provided in the form of a flat head forming flat surfaces on the upper and lower surfaces.

Here, the head portion 10 is provided in the form of a circular flat head, but is not necessarily limited to this shape, and can be changed to various shapes other than circular.

And in the embodiment of the present invention, the body portion 30 is provided as a hollow shaft type having a hollow 31, is integrally connected to the lower surface of the head portion 10, and penetrates the plate material 2 of non-ferrous material. do. Hereinafter, a portion of the body portion 30 connected to the head portion 10 will be referred to as a connection end or a connection end, and the connection end or a front end portion corresponding to the connection end will be referred to as a free end or free end.

Here, the body portion 30 is provided with a cylindrical shape having a hollow 31, but is not necessarily limited to this shape, and can be changed to various shapes other than the cylindrical shape.

Meanwhile, the head part 10 as described above supports the upper surface of the edge of the through hole 3 of the non-ferrous material plate 2 in a state in which the body part 30 penetrates the non-ferrous material plate 2 . In addition, the free end of the body portion 30 is plastically deformed in an outward direction by press pressure, and supports the bottom surface of the edge of the through hole 3 of the non-ferrous material plate 2 .

Furthermore, the through hole 3 as described above may be formed in advance in the plate material 2 of non-ferrous material by a separate piercing process. Accordingly, the through hole 3 may be defined as a free hole. In this case, the free end of the body portion 30 may be formed flat as shown in (a) of FIG.

In addition, the through hole 3 of the non-ferrous material plate 2 as described above is not formed through a separate piercing process, but is formed by press pressure acting on the body portion 30 through the head portion 10. may be

Accordingly, as shown in (b) of FIG. 3, at the free end of the body portion 30, a piercing protrusion 35 is formed to pierce the plate material 2 made of non-ferrous material and to form the through hole 3 described above. do. The piercing protrusion 35 takes a sharp shape from top to bottom and protrudes from the free end of the body portion 30 . The piercing protrusion 35 is provided with a triangular cross-section in the embodiment of the present invention, but is not necessarily limited to this shape, and can be deformed to various sharp shapes other than the triangular cross-section.

Hereinafter, the dissimilar material bonding structure 100 using the rivet 200 for bonding dissimilar materials according to an embodiment of the present invention configured as described above will be described in detail.

In the heterogeneous material bonding structure 100 according to an embodiment of the present invention, the body portion 30 of the rivet 200 is formed between the steel plate 1 and the non-ferrous plate 2. ) penetrates and is coupled to the non-ferrous plate 2, and the plate 1 made of steel is spot-welded to the head 10 of the rivet 200.

Here, in a state in which the body portion 30 of the rivet 200 passes through the through hole 3 of the non-ferrous material plate 2, the head portion 10 of the rivet 200 is of the non-ferrous material plate 2 The upper surface of the edge of the through hole (3) is supported. In addition, the through end, that is, the free end of the body part 30 is plastically deformed outward by press pressure, supports the lower edge of the through hole 3 of the non-ferrous material plate 2, and the through hole 3 It is joined to the edge part.

In this case, the head part 10 is provided in the form of a flat head having flat surfaces on the upper and lower surfaces, and a hollow with an open free end is formed in the body part 30. In addition, the steel plate 1 is spot welded to the upper surface of the head 10 on the upper side of the non-ferrous plate 2 . That is, the steel plate 1 and the head portion 10 are connected to each other through a spot welding portion 50 melted by electrical resistance.

Hereinafter, a bonding process of the dissimilar material bonding structure 100 using the rivet 200 for bonding dissimilar materials according to an embodiment of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

4 to 6 are views for explaining a bonding process of a heterogeneous material bonding structure using a rivet 200 for bonding heterogeneous materials according to an embodiment of the present invention.

Referring to FIG. 4, first, in the embodiment of the present invention, as shown in FIG. Insert the body part 30 of the rivet 200 into (3).

Here, the body portion 30 partially protrudes downward through the through hole 3 when the non-ferrous material plate 2 is lowered, and the free end of the body portion 30 has a flat shape. The head portion 10 of the rivet 200 supports the edge portion of the through hole 3 on the upper surface of the non-ferrous material plate 2 .

As an alternative, in the embodiment of the present invention, as shown in (b) of FIG. 4, in a state in which the plate material 2 made of non-ferrous material is placed on a predetermined die (not shown) without a separate piercing process, the rivet A through hole 3 may be formed in the plate material 2 made of non-ferrous material through the piercing protrusion 35 of the body part 30 by applying a set press pressure to the head part 10 of (200).

Here, the body part 30 partially protrudes downward through the through hole 3 when the lower surface of the non-ferrous material plate 2 is formed, and a part 2a of the non-ferrous material plate 2 corresponding to the body part 30 will cut The head portion 10 of the rivet 200 supports the edge portion of the through hole 3 on the upper surface of the non-ferrous material plate 2 .

In addition, as shown in (a) of FIG. 5, in the embodiment of the present invention, when press pressure is applied to the head portion 10 while the free end of the body portion 30 of the rivet 200 is supported on a die. , The free end of the body portion 30 is plastically deformed outward by the press pressure, and supports the edge portion of the through hole 3 on the lower surface of the non-ferrous material plate 2, and the edge of the through hole 3 combined with the part

As described above, the length of the free end of the body portion 30 coupled to the edge portion of the through hole 3 of the non-ferrous material plate 2 depends on the thickness of the non-ferrous material plate 2, as shown in (b) of FIG. may vary depending on

Subsequently, in the embodiment of the present invention, as shown in FIG. 6, the plate 1 made of steel is set to overlap on the surface (upper surface) of the plate 2 made of non-ferrous material. That is, the plate material 1 made of steel is set to overlap on the upper surface of the head part 10 of the rivet 200 . Then, in the embodiment of the present invention, the head portion 10 of the steel plate 1 and the rivet 200 are spot welded through the spot welding device 101.

Here, the spot welding device 101 is an electric resistance welding device for welding by generating welding heat due to electrical resistance by simultaneously applying current while pressurizing the overlapping base materials.

The spot welding device 101 includes a fixed electrode 103 supporting the rivet 200 from the lower side and a movable electrode 105 pressing and supporting the upper surface of the steel plate 1 from the upper side. In this case, the fixed electrode 103 is located inside the hollow 31 of the body part 30 in the rivet 200 and supports the center of the lower surface of the head part 10.

As described above, in a state in which the lower surface of the head unit 10 is supported through the fixed electrode 103 and the upper surface of the steel material plate 1 is pressurized and supported through the movable electrode 105, in the embodiment of the present invention, the fixed A welding current is applied to the electrode 103 and the movable electrode 105 .

Then, the steel plate 1 and the head portion 10 of the rivet 200 are melt-joined through pressure and energization heating in both directions by the fixed electrode 103 and the movable electrode 105, and spot welding form (50).

Therefore, in the embodiment of the present invention, the plate material 1 made of steel and the head part 10 of the rivet 200 are mutually spot-welded through the spot weld 50, so that the plate material 1 made of steel and the non-ferrous material The plate material 2 can be heterojoined.

According to the embodiment of the present invention as described so far, unlike the prior art in which metal plates of different materials are joined through steel elements of various sizes using a REW device, a single rivet 200 is a plate material of non-ferrous material ( 2), and since the existing spot welding device 101 is used to join the plates of different materials, the process is simple and the equipment investment cost is reduced.

In addition, in the embodiment of the present invention, the body portion 30 of the rivet 200 is coupled to the plate member 2 of non-ferrous material, and the head portion 10 of the rivet 200 is coupled to the plate member 1 of steel material and the spot By welding, it is possible to secure a high quality jointed product of dissimilar materials with high tensile shear strength.

Furthermore, in the embodiment of the present invention, it is not necessary to form a joining hole in the non-ferrous material plate 2, and the plate materials of different materials are joined through a single rivet 200 regardless of the thickness of the non-ferrous material plate 2. Therefore, productivity can be increased and manufacturing costs can be reduced.

In the embodiment of the present invention, when using an aluminum material as the non-ferrous plate material 2, the body part 30 of the rivet 200 is fastened to the non-ferrous plate material 2, and the head part 10 Since the spot welding of the rivet 200 and the steel plate 1 is spot-welded, the position dispersion of the rivet 200 can be minimized, and the rivet 200 and the steel plate 1 due to the position dispersion of the rivet 200 are over-welded. Therefore, it is possible to improve welding quality problems such as melting of non-ferrous materials.

7 (a) and (b) are diagrams illustrating a structure for bonding heterogeneous materials using rivets for bonding heterogeneous materials according to another embodiment of the present invention.

Referring to FIG. 7 , the heterogeneous material bonding structure 300 according to another embodiment of the present invention is based on the configuration of the previous embodiment, and increases the contact and bonding force between the steel plate 1 and the non-ferrous plate 2. It provides a structure that allows

In an embodiment of the present invention, as shown in FIG. , The rivet 200 may be coupled to the concave portion 5 through the same process as in the previous embodiment.

Here, the body portion 30 of the rivet 200 penetrates the concave portion 5, supports the lower surface of the edge of the through portion of the concave portion 5, and the head portion 10 of the rivet 200 is nonferrous. It is arranged in the same plane as the upper surface of the raw material plate (2). In addition, the upper surface of the head part 10 of the rivet 200 and the upper surface of the non-ferrous material plate 2 come into contact with the lower surface of the steel material plate 1, and the steel plate 1 is of the head part 10. Top and spot welded.

And, in the embodiment of the present invention, as shown in (b) of FIG. 7, the convex portion 7 protruding upward is formed on the plate 1 made of steel, and the plate 2 made of non-ferrous material has flat upper and lower surfaces. Forming, it is possible to combine the rivet 200 to the plate material 2 of the non-ferrous material through the same process as in the previous embodiment.

Here, the body portion 30 of the rivet 200 penetrates the plate 2 made of non-ferrous material, supports the bottom edge of the through portion, and the head portion 10 of the rivet 200 is a steel material plate ( It is arranged in the space inside the convex part 7 of 1). And the upper surface of the head part 10 of the rivet 200 is in contact with the inner upper surface of the convex part 7, and the upper surface of the non-ferrous material plate 2 is in contact with the lower surface of the steel material plate 1, and the steel material The plate member 1 of is spot welded to the upper surface of the head portion 10.

Therefore, in the embodiment of the present invention, the plate 1 made of steel and the plate 2 made of non-ferrous material are bonded to each other, and the plate 1 made of steel and the head 10 of the rivet 200 are spot welded, , By forming the spot welded portion 50, it is possible to increase the bonding strength (bonding strength) of these dissimilar materials.

As described above, since the rest of the configuration and operation effects of the heterogeneous material bonding structure 300 according to another embodiment of the present invention are the same as those of the previous embodiment, a detailed description thereof will be omitted.

Although the embodiments of the present invention have been described above, the technical idea of the present invention is not limited to the embodiments presented in this specification, and those skilled in the art who understand the technical idea of the present invention can, within the scope of the same technical idea, the components Other embodiments can be easily proposed by adding, changing, deleting, adding, etc., but it will also be said to fall within the scope of the present invention.

1... Steel plate 2... Non-ferrous plate
2a... cutout 3... through hole
5... concave portion 7... convex portion
C... plating layer 10... head part
30... body part 31... hollow
35... piercing protrusion 50... spot weld
101 ... spot welding device 103 ... fixed electrode
105 ... movable electrode
100, 300... heterogeneous material bonding structure 200... rivet

Claims (16)

delete delete delete delete delete A heterogeneous material bonding structure in which a steel plate and a non-ferrous plate are integrally joined,
Between the steel plate and the non-ferrous plate, the body of the rivet penetrates the non-ferrous plate, the head of the rivet supports one edge of the through-hole of the non-ferrous plate, and the through end of the body is fired. It is deformed and supports the other side of the edge of the through hole of the non-ferrous material plate, and the steel plate is spot welded to the head of the rivet,
The plate made of non-ferrous material forms a concave portion protruding downward, the plate made of steel forms flat upper and lower surfaces, and the body of the rivet penetrates the concave portion and supports the lower surface of the edge of the penetrating portion of the concave portion. The head part of the rivet is arranged in the same plane as the upper surface of the non-ferrous material plate by the concave part. According to claim 6,
The body of the rivet,
The heterogeneous material bonding structure, characterized in that penetrating the free hole formed in the plate of the non-ferrous material. According to claim 6,
The body of the rivet,
A heterogeneous material bonding structure characterized in that the non-ferrous material plate material is pierced and penetrated through a piercing protrusion provided at a through end. According to claim 6,
The head of the rivet is provided in the form of a flat head forming a plane on both sides,
The body portion of the rivet has a hollow structure and is integrally connected to the head portion. According to claim 9,
A fixed electrode of a spot welding device is located in the hollow of the body, and the fixed electrode is in contact with the center of the head. delete According to claim 6,
The upper surface of the head of the rivet and the upper surface of the non-ferrous material plate material are in contact with the lower surface of the steel material plate material. A heterogeneous material bonding structure in which a steel plate and a non-ferrous plate are integrally joined,
Between the steel plate and the non-ferrous plate, the body of the rivet penetrates the non-ferrous plate, the head of the rivet supports one edge of the through-hole of the non-ferrous plate, and the through end of the body is fired. It is deformed and supports the other side of the edge of the through hole of the non-ferrous material plate, and the steel plate is spot welded to the head of the rivet,
The plate material of steel material forms a convex portion protruding upward, the plate material of non-ferrous material forms flat upper and lower surfaces, and the body of the rivet penetrates the plate material of non-ferrous material and supports the bottom edge of the through portion, The head portion of the rivet is disposed in the space inside the convex portion of the steel plate member. According to claim 13,
The upper surface of the head of the rivet is in contact with the inner upper surface of the convex portion, and the upper surface of the non-ferrous material plate is in contact with the lower surface of the steel plate. According to claim 6 or 13,
The plate of the steel material is a heterogeneous material bonding structure, characterized in that any one of a steel plate, a stainless steel plate, a high-strength steel plate and an ultra-high-strength steel plate. According to claim 6 or 13,
The non-ferrous material plate is a heterogeneous material bonding structure, characterized in that any one of an aluminum plate, a magnesium plate and a plastic composite material plate.

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