KR20220109614A - Vehicle wheel using fiber reinforced composite material and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a vehicle wheel using a fiber-reinforced composite material and a manufacturing method thereof. The vehicle wheel using the fiber-reinforced composite material according to one embodiment of the present invention comprises: a rim accommodating a tire; a wheel body provided with a through opening for fixing a rotation shaft; and equal to or more than two spokes connecting the wheel body and the rim. The rim, the wheel body and the spokes are formed from fiber-reinforced composites. A foam core is inserted inside the rim and the spokes. Thus, the provided vehicle wheel achieves a light weight and at the same time secures rigidity required for the vehicle wheel.

Description

Vehicle wheel using fiber-reinforced composite material and manufacturing method thereof

The present invention relates to a vehicle wheel using a fiber-reinforced composite material and a method for manufacturing the same, and more particularly, to a vehicle manufactured by molding a rim, spokes and a wheel body at once while satisfying the rigidity required for a wheel by applying a fiber-reinforced composite material. It's about the wheel.

In general, a wheel for a vehicle supports a load of a vehicle together with a tire, and functions to transmit a driving force and a braking force to a road surface. Reducing the weight of the vehicle wheel can increase the driving performance of the vehicle and also improve fuel efficiency. In order to reduce the weight of such a wheel for a vehicle, aluminum, which is easy to manufacture and has a low weight, is generally used. And recently, a wheel using a fiber-reinforced composite material has been developed in order to reduce the weight of the wheel for a vehicle and enhance its strength. In particular, fiber-reinforced composite materials have higher specific strength and specific stiffness compared to metal alloys, so their use is increasing in various fields. , weight reduction, safety, and improved riding comfort can be seen. In the case of manufacturing a wheel using a fiber-reinforced composite material having such an advantage, it has a high strength while having a small specific gravity, thereby enabling weight reduction compared to a conventional aluminum wheel.

In general, fiber-reinforced composite materials are composed of a base material corresponding to a polymer resin and a reinforcing material using reinforcing fibers. The mechanical properties of a fiber-reinforced composite material composed of a base material and a reinforcing material vary greatly depending on the directionality of the reinforcing fibers. Therefore, in order to obtain the required mechanical properties, an appropriate design according to the direction is required.

Fiber-reinforced composite material molding methods include VaRTM, HC-RTM, press molding, and autoclave molding. It can be divided into a method of cutting the substrate and stacking it on a mold. The method using the fabric is inferior to the method of using a fiber base impregnated with a polymer resin in terms of the degree of freedom and moldability in the handling of the base material. And the design of the mold is also important in the molding of fiber-reinforced composite materials. It should be designed by securing efficient lamination and demolding of the substrate.

On the other hand, vehicle wheels must satisfy various load conditions. The force applied to the wheel for a vehicle includes static load, impact load, and fatigue load.

As such, Korean Patent Registration No. 10-1087148, an invention for manufacturing a wheel using a fiber-reinforced composite material, is an invention for a vehicle wheel using a composite material and a manufacturing method thereof. are doing However, in the case of the above patent, a fiber-reinforced composite material is simply used to replace the conventional metal, and the configuration for simultaneously securing the required rigidity while achieving weight reduction using the fiber-reinforced composite material is not described.

Korean Patent Registration No. 10-1087148

The present invention has been devised to solve the above-described problems, and the problem to be solved by the present invention is to achieve the weight reduction of the wheel by manufacturing a wheel for a vehicle using a fiber-reinforced composite material while at the same time secure the rigidity required for the wheel for a vehicle. It is to provide a wheel for a vehicle using a fiber-reinforced composite material and a manufacturing method thereof.

These and other objects and advantages of the present invention will become apparent from the following description of preferred embodiments.

The object includes a rim for accommodating a tire, a wheel body having a through opening for fixing a rotation shaft, and two or more spokes connecting the wheel body and the rim, the rim, the wheel body and the spokes are made of a fiber-reinforced composite material It is formed and achieved by a vehicle wheel using a fiber-reinforced composite material into which a foam core is inserted inside the rim and spokes.

Preferably, the cross section of the spokes may have a rectangular shape.

Preferably, the rim, wheel body and spokes may be formed by laminating a fiber base impregnated with a polymer resin.

Preferably, the rim may be formed by laminating a fiber base impregnated with a polymer resin having at least two different angles among 0, 45, -45 and 90 degrees based on the circumferential direction of the rim. .

Preferably, the rim may have a lamination ratio of 2 to 3:1 of a fiber base impregnated with a polymer resin laminated at 0 degrees and 90 degrees with respect to the circumferential direction of the rim.

Preferably, the spoke may be formed by laminating a fiber base impregnated with a polymer resin having at least two angles different from each other among 0, 45, -45 and 90 degrees based on the length direction of the spoke. .

Preferably, the spokes may have a lamination ratio of 1:1 to 2 of the polymer resin-impregnated fiber base laminated at 0 degrees and 90 degrees with respect to the longitudinal direction of the spokes.

Preferably, the polymer resin may include at least one resin selected from epoxy, unsaturated polyester, vinyl ester, and phenol resin.

Preferably, the fiber base may include at least one fiber selected from glass fiber, carbon fiber, and aramid fiber.

Preferably, the foam core may include at least one selected from PET, PVC, PU and PE.

Preferably, the rim has a thickness of 3 to 15 mm, the cross section of the spoke has a transverse and longitudinal length of 40 to 50 mm, the thickness of the foam core inserted into the rim is 1 to 14 mm, and the foam core inserted into the spoke The thickness may be 20 to 30 mm.

Preferably, the radius of the rim may be 240 to 280 mm, and the radius of the wheel body may be 70 to 80 mm.

Preferably, seven or more spokes may be provided.

Preferably, the vehicle wheel may not be damaged under a static side load of 30 tons or less.

Preferably, the foam core may be inserted into the rim and spoke or laminated on the surface.

In addition, the above object is a first step of laminating a foam core and a fiber substrate impregnated with a polymer resin in a first inner mold forming a part of the spokes, the wheel body and the rim, the second inner forming the remaining part of the rim The second step of fixing the mold to the first inner mold, the third step of laminating the foam core and the fiber base impregnated with the polymer resin in the second inner mold, the outer mold surrounding the first inner mold and the second inner mold A fiber-reinforced composite material comprising a fourth step of meshing, a fifth step of vacuum packaging the first inner mold, the second inner mold and the outer mold, and a sixth step of heating and pressing the vacuum packed mold to form a wheel It is achieved by a method of manufacturing a wheel for a vehicle using.

Preferably, in the first step of laminating the fiber base and the foam core impregnated with the polymer resin in the first inner mold, the fiber base and the foam core impregnated with the polymer resin in the slots formed by the number of spokes in the first inner mold are formed. It may be laminated.

Preferably, in the second step of fixing the second inner mold to the first inner mold, it may be fixed through a fastening groove located inside the first inner mold and the second inner mold.

Preferably, the outer mold may be formed by combining two or more divided molds through a flange and a fastening part.

Preferably, in the sixth step of forming the wheel by heating and pressing, the heating temperature may be 120 to 180° C., and the pressure may be 0.3 to 1 MPa.

According to the vehicle wheel using the fiber-reinforced composite material and the manufacturing method thereof according to the present invention, by applying a foam core to the vehicle wheel in manufacturing the wheel using the fiber-reinforced composite material, the rigidity required for the vehicle wheel is provided This makes it possible to achieve both lightweight and high strength of vehicle wheels.

However, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a configuration diagram of a wheel for a vehicle using a fiber-reinforced composite material according to an embodiment of the present invention.
FIG. 2 is a front view of the vehicle wheel shown in FIG. 1 .
3 is a cross-sectional view in the direction of spokes AA of the wheel for the vehicle shown in FIG. 2 .
4 is a cross-sectional view of the vehicle wheel shown in FIG. 1 .
5A is a configuration diagram of a wheel mold for a vehicle for explaining a method of manufacturing a wheel for a vehicle using a fiber-reinforced composite material according to an embodiment of the present invention.
5B is a configuration diagram of a first inner mold of the wheel mold for a vehicle shown in FIG. 5A.
5C is a configuration diagram of a second inner mold of the wheel mold for a vehicle shown in FIG. 5A.
5D is a configuration diagram of an outer mold of the wheel mold for a vehicle shown in FIG. 5A.

With reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein.

In order to clearly express various layers and regions in the drawings, the thicknesses are enlarged. Throughout the specification, like reference numerals are assigned to similar parts. When a part of a layer, film, region, plate, etc. is said to be “on” another part, it includes not only cases where it is “directly on” another part, but also cases where there is another part in between. Conversely, when we say that a part is "just above" another part, we mean that there is no other part in the middle.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control. Also, although methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention, suitable methods and materials are described herein.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a vehicle wheel using a fiber-reinforced composite material according to an embodiment of the present invention, FIG. 2 is a front view of the vehicle wheel shown in FIG. 1, and FIG. 3 is a spoke of the vehicle wheel shown in FIG. It is a cross-sectional view in the A-A direction, and FIG. 4 is a cross-sectional view of the vehicle wheel shown in FIG. 1 .

1 to 4, the wheel 100 for a vehicle using a fiber-reinforced composite material according to an embodiment of the present invention is a wheel body having a rim 110 for accommodating a tire, and a through-opening for fixing a rotating shaft. 130 and two or more spokes 120 connecting the rim 110 and the wheel body 130 .

The rim 110 , the spokes 120 and the wheel body 130 are formed of a fiber-reinforced composite material, and the foam cores 210 and 220 are inserted into the rim 110 and the spokes 120 . In this case, the fiber-reinforced composite material is formed by a fiber base impregnated with a polymer resin, and the polymer resin preferably includes at least one selected from epoxy, unsaturated polyester, vinyl ester, and phenol. In addition, it is preferable that the fiber base includes at least one fiber from among glass fiber, carbon fiber, and aramid fiber.

The rim 110 is formed by laminating a fiber base impregnated with a polymer resin. At this time, the rim 110 is preferably a fiber base impregnated with a polymer resin is laminated at different angles of at least two or more of 0, 45, -45 and 90 degrees with respect to the circumferential direction of the rim 110 .

In particular, when the lamination angle of the polymer resin-impregnated fiber base laminated on the rim 110 includes 0 and 90 degrees, the lamination ratio of the fiber base laminated at 0 degrees and 90 degrees based on the circumferential direction of the rim 110 is It is preferably 2-3:1. In the static load applied to the rim 110 of the vehicle wheel in the process of driving the vehicle, the vertical load is larger than the side load, so that the stacking in the 0 degree direction to withstand the vertical load is more required. Accordingly, when the lamination ratio of the fiber base laminated at 0 degrees is less than 2, the strength to withstand the vertical load is insufficient, and when it is more than 3, the strength against the vertical load can be secured, but the lateral load becomes weak.

In addition, the rim 110 may be configured with a variable cross-section in order to secure rigidity against lateral loads and horizontal loads, and preferably has a thickness of 3 to 15 mm. When the thickness of the rim 110 is less than 3 mm, the required mechanical strength cannot be secured, and when it exceeds 15 mm, the weight of the wheel may increase due to excessive rigidity.

The rim 110 has a structure in which the first foam core 210 is stacked. The first foam core 210 laminated on the rim 110 may have a structure in which the polymer resin forming the rim 110 is laminated between the impregnated fiber bases, or the polymer resin forming the rim 110 is It may have a structure that is laminated on any one surface of the impregnated fiber base. As an example, as shown in FIG. 4 , it may have a structure in which the first foam core 210 is positioned on the inner surface of the rim 110 .

The first foam core 210 preferably includes at least one selected from PET, PVC, PU and PE. The first foam core 210 formed through such a material is laminated on the rim 110 to secure rigidity against a vertical load applied to the rim 110 while lowering the weight of the wheel.

At this time, it is preferable that the first foam core 210 inserted into the rim 110 has a thickness of 1 to 14 mm. When the thickness of the first foam core 210 is less than 1 mm, there may be a problem in that the rigidity of the central portion of the rim is not satisfied. In addition, it is preferable that the radius of the rim 110 is 240 to 280 mm in order to secure rigidity against the compound load applied to the vehicle wheel.

In the rim 110 , the thickness ratio of the fiber base impregnated with the polymer resin and the first foam core 210 is preferably 1 to 6:1. At this time, if the thickness ratio is less than 1:1, the rigidity required for the rim may not be secured, and if it exceeds 6:1, the weight of the wheel may increase due to excessive rigidity.

The spokes 120 have a structure connecting the rim 110 and the wheel body 130 .

The spoke 120 is formed by stacking a fiber base impregnated with a polymer resin by stacking a fiber base having at least two different angles among 0, 45, -45 and 90 degrees with respect to the longitudinal direction of the spoke 120 it is preferable

When the lamination angle of the polymer resin-impregnated fiber base laminated on the spokes 120 includes 0 degrees and 90 degrees, the lamination ratio of the fiber base laminated at 0 degrees and 90 degrees based on the longitudinal direction of the spokes 120 is preferably 1:1 to 2. The spoke 120 is connected to the side of the rim 110 and has a structure that connects the rim 110 and the wheel body 130, so that when the wheel rotates according to the operation of the vehicle, a vertical load and a lateral load are applied at the same time. Since the lateral load acts larger than the vertical load, it is required to secure the bending rigidity of the spoke 120 . In order to secure the bending rigidity of the spokes 120 formed in the hollow rectangular cross section, it is required to reinforce the rigidity in the direction in which the bending load acts. At this time, since the direction of 90 degrees with respect to the longitudinal direction of the spokes 120 is more affected by the bending load, at least the same stacking ratio as the 0 degree direction or more stacking is required. Therefore, when the fiber base laminated at 90 degrees on the spokes 120 is laminated at less than 1, bending rigidity is not secured, and when it is laminated at more than 2, there is a problem in that it becomes vulnerable to the vertical load (spoke length direction) weighted on the rim. .

As shown in FIG. 3 , the spokes 120 are preferably formed in a rectangular cross-section in order to secure mechanical strength against an applied lateral load. As such, it is preferable that the horizontal and vertical lengths of the spokes 120 having a rectangular cross-section are 40 to 50 mm. If the horizontal and vertical lengths of the spokes 120 are less than 40 mm, bending or damage may occur due to failure to secure mechanical strength against side loads, and if it exceeds 50 mm, the weight of the wheel becomes excessive.

The spokes 120 have a form in which the second foam core 220 is laminated on a fiber base impregnated with a polymer resin. At this time, it is preferable that the second foam core 220 laminated on the spokes 120 is laminated and inserted between the fiber substrates impregnated with the polymer resin forming the spokes 120 .

The second foam core 220 preferably includes at least one selected from PET, PVC, PU and PE. The second foam core 220 formed through such a material is laminated on the spokes 120 to secure rigidity against lateral loads and/or bending loads applied to the spokes 120 while lowering the weight of the wheel.

At this time, it is preferable that the second foam core 220 inserted into the spoke 120 has a thickness of 20 to 30 mm. If the thickness of the second foam core 220 is less than 20 mm, the weight may increase due to excessive rigidity, and if it exceeds 30 mm, the spokes may be damaged by a compound load applied thereto.

The thickness ratio of the fiber base impregnated with the polymer resin and the second foam core 220 in the cross section of the spokes 120 is preferably 1: 1.5 to 2. At this time, if the thickness ratio of the second foam core 220 is less than 1.5, the weight reduction effect is insignificant, and if it exceeds 2, it may be damaged by a compound load (bending load and vertical load acting on the rim) acting on the spokes.

The number of spokes 120 provided in the vehicle wheel using the fiber-reinforced composite material is preferably 7 or more in order to secure rigidity against the compound load applied to the vehicle wheel.

The wheel body 130 is formed by laminating a fiber base impregnated with a polymer resin.

And in order to secure rigidity with respect to the compound load applied to the vehicle wheel, the radius of the wheel body 130 is preferably 70 to 80 mm.

The vehicle wheel using the fiber-reinforced composite material according to an embodiment of the present invention according to the above-described configuration has a rigidity that can withstand a static side load of 30 tons, which is a required test standard.

5A is a configuration diagram of a wheel mold for a vehicle for explaining a method of manufacturing a wheel for a vehicle using a fiber-reinforced composite material according to an embodiment of the present invention, and FIG. 5B is a first inner mold of the wheel mold for a vehicle shown in FIG. 5A. of the second inner mold of the wheel mold shown in FIG. 5A, and FIG. 5D is a configuration diagram of the outer mold of the wheel mold for the vehicle shown in FIG. 5A.

First, a wheel mold for a vehicle for manufacturing a vehicle wheel using a fiber-reinforced composite material according to an embodiment of the present invention shown in FIGS. 5A to 5D forms the spokes 120 and the wheel body 130, and the rim 110 A first inner mold 300 forming a portion where the spokes and the spokes 120 abut, a second inner mold 400 and a first inner mold 300 forming a rim 110 in contact with the first inner mold 300 ) and an outer mold 500 surrounding the second inner mold 400 . The first inner mold 300 includes a space for forming the wheel body 130 and two or more slots 310 for forming two or more spokes 120 . And the first inner mold 300 and the second inner mold 400 are fastened through the fastening grooves 320 and 410 located inside. And the outer mold 500 wraps around the side of the first inner mold 300 and the outside of the second inner mold 400 . At this time, it is preferable that the outer mold 500 has a form in which two or more divided molds are combined, not one single mold, if necessary. The external mold 500 shown in FIGS. 5A and 5D has a form in which four external molds are combined. However, the number of couplings of the outer mold 500 is not limited to four, and may have a variety of shapes as needed. In this way, two or more molds may be coupled to the outer mold 500 through the flange 510 and the fastening part 520 .

5A to 5D, the method of manufacturing a wheel for a vehicle using a fiber-reinforced composite material according to an embodiment of the present invention comprises a spoke 120, a wheel body 130 and a first forming part of the rim 110. 1 In the first step of laminating the fiber base and the foam core (second foam core) impregnated with the polymer resin in the inner mold 300 , the second inner mold 400 forming the remaining part of the rim 110 is prepared 1 The second step of fixing to the inner mold 300, the third step of laminating the fiber base and the foam core (first foam core) impregnated with the polymer resin in the second inner mold 400, the first inner mold ( A fourth step of engaging the outer mold 500 surrounding the 300) and the second inner mold 400, the first inner mold 300, the second inner mold 400, and the first vacuum packaging of the outer mold 500 Step 5 and a sixth step of heating and pressing the vacuum-packed mold to form a wheel.

The spoke 120, the wheel body 130, and the first inner mold 300 forming a part of the rim 110 is a first for laminating a fiber base material impregnated with a polymer resin and a foam core (second foam core) In the step, as shown in FIG. 5b, a fiber base and a foam core (second foam core) impregnated with a polymer resin for forming the spokes 120 in the slots 310 inside the first inner mold 300 are laminated. do. At this time, the spoke 120 has a structure that connects the rim 110 and the wheel body 130 so that the vertical load and the lateral load are simultaneously applied when the wheel rotates according to the operation of the vehicle, so that the polymer has different angles. It is preferable that the resin-impregnated fiber base be cross-laminated. In particular, the spokes 120 are stacked at 0 degrees and 90 degrees based on the longitudinal direction of the spokes 120 in consideration of the lateral loads because the lateral loads are greater than the vertical loads while the vertical and lateral loads are simultaneously applied. It is preferable to laminate so that the lamination ratio of the fiber base impregnated with the polymer resin is 1:1 to 2. In addition, although the number of slots for forming the spokes 120 formed in the first inner mold 300 is shown in the example of FIG. 5b 7 slots 310, it is not limited to 7, and the manufactured vehicle wheel may vary depending on the size and use of

Next, in the second step of fixing the second inner mold 400 forming the remaining part of the rim 110 to the first inner mold 300 , the second inner mold is placed on the inner surface of the first inner mold 300 . (400) is fastened. At this time, it is preferable that the first inner mold 300 and the second inner mold 400 are mechanically fastened through the fastening grooves 320 and 410 located inside. Through this, by completely fixing the first inner mold 300 and the second inner mold 400, the mold is prevented from being distorted or spaced apart by the pressure or other external force applied in the process of forming the wheel for the vehicle.

Next, in the third step of laminating the fiber base and the foam core (the first foam core) impregnated with the polymer resin in the second inner mold 400 , the second inner mold 400 is the fiber impregnated with the polymer resin By laminating the base material and the foam core (the first foam core), the spokes 120 and the rim 110 of the first inner mold 300 are integrally molded. At this time, in the static load applied to the rim 110 of the wheel for the vehicle in the process of driving the vehicle, since the specific gravity of the vertical load is greater than that of the side load, 0 degrees in the circumferential direction of the rim 110 to withstand the vertical load more And it is preferable to laminate so that the lamination ratio of the fiber base laminated at 90 degrees is 2 to 3:1.

Next, in the fourth step of engaging the outer mold 500 surrounding the first inner mold 300 and the second inner mold 400, the first inner mold 300 and In a state in which the foam core and the fiber substrate impregnated with the polymer resin in the second inner mold 400 are laminated, the outer mold 500 surrounding the same is engaged. In this case, the outer mold 500 is preferably in a form in which two or more divided molds are combined in consideration of the convenience of mold engagement and the shape of the wheel to be manufactured. 5D shows an outer mold 500 in which four split molds are combined as an example. However, as shown in FIG. 5D , the outer mold 500 is made of four molds as an example, and the number of divisions of the outer mold 500 is not limited to four, and the first inner mold 300 and It is freely adjustable within a range that can completely cover the molding space of the second inner mold 400 . At this time, the mold divided into two or more may be coupled through the flange 510 and the fastening part 520 to form the external mold 500 .

Next, in the fifth step of vacuum packaging the first inner mold 300 , the second inner mold 400 , and the outer mold 500 , the first inner mold 300 , the second inner mold 400 and the outer mold After combining all (500), the entire combined mold is completely packaged using a breather, vacuum film or bagging film, and then made in a vacuum state to enable high-temperature and high-pressure processing in the sixth step.

Next, in the sixth step of heating and pressing the vacuum-packed mold to form the wheel, the vehicle wheel is formed by heating and pressing for a predetermined time using equipment such as an oven or an autoclave. In this case, the conditions of heating and pressurization can be freely adjusted according to the polymer resin, and in general, the heating temperature is 120 to 180° C., and the pressure is preferably 0.3 to 1 MPa.

Although preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims are also provided. is within the scope of the

100: vehicle wheel using fiber-reinforced composite material
110: rim 120: spoke
130: wheel body
210: first foam core 220: second foam core
300: first inner mold 310: slot
320: fastening groove
400: second inner mold 410: fastening groove
500: outer mold 510: flange
520: fastening part

Claims (20)

a rim to receive the tire;
a wheel body having a through-opening for fixing the rotating shaft; and
It includes two or more spokes connecting the wheel body and the rim,
The rim, the wheel body and the spokes are formed of a fiber-reinforced composite material,
A vehicle wheel using a fiber-reinforced composite material in which a foam core is inserted into the rim and the spokes. According to claim 1,
A vehicle wheel using a fiber-reinforced composite material, wherein the cross-section of the spokes has a rectangular shape. According to claim 1,
The rim, the wheel body and the spokes are formed by laminating a fiber base impregnated with a polymer resin, a wheel for a vehicle using a fiber-reinforced composite material. According to claim 1,
The rim is a fiber-reinforced composite material in which a fiber base impregnated with a polymer resin is formed by laminating a fiber base having at least two different angles among 0, 45, -45 and 90 degrees based on the circumferential direction of the rim. used vehicle wheels. 5. The method of claim 4,
The rim is a vehicle wheel using a fiber-reinforced composite material having a lamination ratio of 2 to 3:1 of a fiber base impregnated with a polymer resin laminated at 0 degrees and 90 degrees based on the circumferential direction of the rim. According to claim 1,
The spoke is a fiber-reinforced composite material in which the polymer resin-impregnated fiber base is formed by laminating a fiber base having at least two different angles among 0, 45, -45 and 90 degrees based on the length direction of the spoke. used vehicle wheels. 7. The method of claim 6,
The spoke is a vehicle wheel using a fiber-reinforced composite material, wherein the stacking ratio of the fiber base impregnated with the polymer resin, which is laminated at 0 degrees and 90 degrees with respect to the longitudinal direction of the spokes, is 1:1 to 2. 4. The method of claim 3,
The polymer resin comprises at least one resin selected from epoxy, unsaturated polyester, vinyl ester, and phenolic resin, a vehicle wheel using a fiber-reinforced composite material. 4. The method of claim 3,
The fiber base is a vehicle wheel using a fiber-reinforced composite material comprising at least one fiber selected from glass fiber, carbon fiber and aramid fiber. According to claim 1,
The foam core is a vehicle wheel using a fiber-reinforced composite material comprising at least one selected from PET, PVC, PU and PE. According to claim 1,
The rim has a thickness of 3 to 15 mm, the cross-section of the spokes has a transverse and longitudinal length of 40 to 50 mm, the thickness of the foam core inserted into the rim is 1 to 14 mm, and the foam core inserted into the spokes The thickness of the vehicle wheel using a fiber-reinforced composite material of 20 to 30mm. According to claim 1,
The radius of the rim is 240 to 280mm, the radius of the wheel body is 70 to 80mm, a vehicle wheel using a fiber-reinforced composite material. According to claim 1,
The spokes are provided with seven or more, a vehicle wheel using a fiber-reinforced composite material. According to claim 1,
The vehicle wheel is not damaged under a static side load of 30 tons or less, a vehicle wheel using a fiber-reinforced composite material. According to claim 1,
The foam core is inserted into the rim and the spoke or laminated on the surface, a vehicle wheel using a fiber-reinforced composite material. A first step of laminating a fiber base material impregnated with a polymer resin and a foam core on a first inner mold forming a part of the spokes, wheel body and rim;
a second step of fixing a second inner mold forming the remaining part of the rim to the first inner mold;
a third step of laminating a fiber substrate impregnated with a polymer resin and a foam core in the second inner mold;
a fourth step of engaging an outer mold surrounding the first inner mold and the second inner mold;
a fifth step of vacuum packaging the first inner mold, the second inner mold, and the outer mold; and
a sixth step of heating and pressing the vacuum-packed mold to form a wheel;
A method of manufacturing a wheel for a vehicle using a fiber-reinforced composite material, comprising a. 17. The method of claim 16,
In the first step of laminating the fiber base and the foam core impregnated with the polymer resin in the first inner mold, the fiber base and the foam core impregnated with the polymer resin in the slots formed by the number of spokes in the first inner mold are laminated. , A method of manufacturing a wheel for a vehicle using a fiber-reinforced composite material. 17. The method of claim 16,
In the second step of fixing the second inner mold to the first inner mold, the first inner mold and the second inner mold are fixed through a fastening groove located inside the inner mold, a method of manufacturing a wheel for a vehicle using a fiber-reinforced composite material . 17. The method of claim 16,
The outer mold is a method of manufacturing a wheel for a vehicle using a fiber-reinforced composite material, wherein two or more divided molds are coupled through a flange and a fastening part. 17. The method of claim 16,
In the sixth step of forming the wheel by heating and pressing, the heating temperature is 120 to 180° C., and the pressure is 0.3 to 1 MPa, a method of manufacturing a wheel for a vehicle using a fiber-reinforced composite material.

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