JP6357984B2 - Composite material molding method and molding apparatus - Google Patents

Description

  The present invention relates to a molding method and a molding apparatus for a composite material.

  In recent years, various automobile parts have been formed of composite materials including resin from the viewpoint of weight reduction and the like. As a molding method of a composite material, an RTM (Resin Transfer Molding) molding method suitable for mass production has attracted attention. In the RTM molding method, first, a reinforcing base material is installed in a cavity in a molding die composed of a pair of lower molds (female molds) and upper molds (male molds) that can be opened and closed. Then, the mold is clamped, the resin is injected from the resin injection port, and the reinforced substrate is impregnated with the resin. And a composite material is obtained by hardening resin in a cavity.

  The composite material is also used for parts used in a vehicle body or the like, and the composite material is joined by adhesion. In addition, the composite material contains a release agent inside, which may be deposited on the surface during resin molding and reduce the adhesive force of the adhesive applied for adhesion to the mating member. In order to increase the contact area by reducing the adhesive force due to the release agent inside the composite material and increasing the contact area of the composite material surface, a process of roughening the surface that becomes the adhesive part of the composite material is performed Specifically, modification by blasting or sandpaper is performed (see Patent Document 1).

JP 2008-248196 A

  However, the process as in Patent Document 1 is positioned as a unique process for roughening, and adding such a process naturally leads to an increase in the cost of the product. For this reason, it is required that the bonding strength of the bonding portion in the composite material be improved without adding the above-described steps.

  Accordingly, the present invention has been made to solve the above-described problems, and the adhesive strength of the adhesive portion is good without performing a specific process of roughening the adhesive portion with the counterpart part in the resin molded product. It is an object of the present invention to provide a molding method and a molding apparatus for a composite material that can be made.

  The present invention that achieves the above object is a method for forming a composite material having an adhesive portion that adheres to a mating member. In this method, a cavity is formed by clamping a first mold having a roughened surface forming portion at a location corresponding to an adhesive portion and a second die facing the first mold. Then, the resin is injected in a state where the reinforced base material is disposed in the cavity, and the resin is cured to form a concavo-convex shape in the adhesive portion corresponding to the rough surface forming portion in the first die, and the mold clamping of the first die Is released to form a gap between the rough surface forming portion and the adhesive portion, and the first die and the second die are relatively slid to scrape off the apex side of the convex portion in the concavo-convex shape. It is characterized by that.

Another aspect of the present invention is a molding apparatus for a composite material provided with an adhesive portion that adheres to a counterpart member. The apparatus is provided in a first mold and a second mold that are openable and closable in which a cavity for arranging a reinforcing substrate is formed, a resin injection part that injects a resin into the cavity, and a first mold that is bonded. Between the composite material and the first die, and a rough surface forming portion where the portion corresponding to the portion is roughened into a concavo-convex shape, and the roughened portion is transferred to form a concavo-convex shape in the adhesive portion In addition, in a state where a gap smaller than the depth of the concave and convex shape of the adhesive portion is provided, a mold that slides the first die with respect to the second die and scrapes off the apex side of the convex portion in the concave and convex shape And a moving part .

  According to the method and apparatus for molding a composite material according to the present invention, the mold clamping is released to form a gap between the rough surface forming portion and the bonding portion, and the first die is set to the second die. By sliding, the apex side of the convex portion in the concave and convex shape is scraped off. By sliding the first mold to the second mold in the state where the gap is formed in this way, the rough surface forming portion scrapes the convex and concave portions formed in the composite material to further roughen the surface, thereby making the contact area. And the adhesive strength can be improved. Moreover, even if the internal mold release agent contained in the matrix resin of the composite material is deposited on the surface, the mold release agent deposited on the surface can be removed by scraping off the apex side of the convex portion of the composite material. Therefore, the adhesive strength at the bonded portion can be improved without performing a specific process such as blasting necessary for maintaining the adhesive strength.

FIG. 1A is a perspective view showing a composite material formed by the forming method according to this embodiment, and FIG. 1B is a cross-sectional view taken along line 1B-1B in FIG. . FIG. 2 is a schematic view of a composite material molding apparatus according to the present embodiment. FIG. 3A is a perspective view showing the first split mold of FIG. 2, and FIG. 3B is a perspective view showing a mold and a mold moving part constituting the composite material molding apparatus. 4A is a cross-sectional view taken along line 4-4 of FIG. 3A, and FIG. 4B is an enlarged view of the rough surface forming portion of FIG. 4A. FIG. 5 is a flowchart showing a method for molding a composite material according to this embodiment. 6A is a perspective view showing the composite material after the resin is cured in step S6 of FIG. 5, and FIG. 6B is a cross-sectional view taken along line 6B-6B of FIG. 6A. It is. FIG. 7 is a cross-sectional view showing a state in which a gap is formed between the bonded portion and the rough surface forming portion in step S7 of FIG. FIG. 8 is an enlarged view of the bonding portion and the rough surface forming portion. FIG. 9 is a cross-sectional view of the adhesion part and the rough surface forming part when the first mold in step S8 of FIG. 5 is slid. FIG. 10 is a cross-sectional view of the adhesion portion and the rough surface forming portion when the first mold in step S8 of FIG. 5 is slid. FIG. 11A is a diagram showing an automobile part using a composite material, and FIG. 11B is a diagram showing a vehicle body in which an outer plate part and a skeleton part are joined.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the following description does not limit the technical scope and terms used in the claims. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation, and may differ from actual ratios.

  FIG. 1A is a perspective view showing a composite material 200 formed by the forming method according to the present embodiment, and FIG. 1B is a cross-sectional view taken along line 1B-1B in FIG. is there. FIG. 2 is a schematic view of the molding apparatus 100 for the composite material 200 according to the present embodiment. 3A is a perspective view showing the first split mold 11a of FIG. 2, and FIG. 3B is a perspective view showing the mold 10 and the mold moving part 40 constituting the molding apparatus 100 for the composite material 200. FIG. It is.

  4A is a cross-sectional view taken along line 4-4 of FIG. 3A, and FIG. 4B is an enlarged view of the rough surface forming portion 14 of FIG. 4A. FIG. 5 is a flowchart showing a method for forming the composite material 200 according to this embodiment. 6A is a perspective view showing the composite material 200 after the resin 220 is cured in step S6 of FIG. 5, and FIG. 6B is along the line 6B-6B of FIG. 6A. It is sectional drawing.

  FIG. 7 is a cross-sectional view showing a state in which a gap C is formed between the bonding portion 201 and the rough surface forming portion 14 in step S7 of FIG. FIG. 8 is an enlarged view of the bonding portion 201 and the rough surface forming portion 14. 9 and 10 are cross-sectional views of the adhesive portion 201 and the rough surface forming portion 14 when the first mold in step S8 of FIG. 5 is slid. FIG. 11A is a view showing an automobile part using the composite material 200, and FIG. 11B is a view showing an automobile body 300 in which the skeleton parts 301 and 302 and the outer plate part 303 are joined. .

(Composite material)
First, the molding method according to the present embodiment and the composite material 200 molded by the molding apparatus 100 will be described. The composite material 200 obtained by the molding method and the molding apparatus 100 according to the present embodiment is mainly composed of a reinforced substrate 210 and a resin 220. The composite material 200 has higher strength and rigidity than the resin 220 alone by combining the resin 220 with the reinforced substrate 210. Further, as shown in FIG. 11, the composite material 200 is a part used for a car body 300 of an automobile (see FIG. 11B), a skeleton part such as a front side member 301 and a pillar 302, an outside of a roof 303 and the like. By applying it to a plate component, it is possible to reduce the weight of the automobile body 300 as compared with the case where a steel material is used.

  The reinforced substrate 210 is formed of a woven sheet of carbon fiber, glass fiber, organic fiber or the like, and is placed in the cavity 17 formed in the mold 10 in a laminated state and preformed. In this embodiment, a carbon fiber having a small thermal expansion coefficient, excellent dimensional stability, and little deterioration in mechanical properties even at high temperatures is used. The preform may be performed by another mold other than the mold 10.

  As the resin 220, an epoxy resin, a phenol resin, or the like which is a thermosetting resin is used. In the present embodiment, an epoxy resin having excellent mechanical characteristics and dimensional stability is used. Epoxy resin is mainly a two-component type, and a main agent and a curing agent are mixed and used. The main agent is generally a bisphenol A-type epoxy resin, and the curing agent is an amine-based one. However, the main agent is not particularly limited, and can be appropriately selected according to desired material characteristics.

  As shown in FIG. 1A, the composite material 200 obtained by the molding method and the molding apparatus 100 according to the present embodiment has an adhesive portion 201 that adheres the composite materials 200 to each other at least partially. The bonding portion 201 is provided at the end portion in the longitudinal direction of the composite material 200, but the place is not limited to the end portion.

  As shown in FIG. 1B, the adhesive portion 201 includes a recess 201a and a fine uneven portion 201b formed on the surface layer side of the recess 201a. As shown in FIG. 1 (B), the surface of the bonding portion 201 is roughened to have a concavo-convex portion 201b having a particularly concavo-convex shape. Therefore, the bonding portion 201 can have a relatively large surface area to which the adhesive is applied, and this can improve the bonding strength. Details will be described later.

(Composite material molding equipment)
Next, the molding apparatus 100 for the composite material 200 will be described. With reference to FIG. 2, the molding apparatus 100 according to the present embodiment can be summarized as a molding die 10, a press unit 20, a resin injection unit 30, a mold moving unit 40, a suction unit 50, and a molding die. A temperature adjustment unit 60 and a control unit 70 are included. Hereinafter, the configuration of the molding apparatus 100 will be described in detail.

  The mold 10 includes a pair of first mold 11 that can be opened and closed, a second mold 12, and a cavity 17. The first mold 11 is configured as a movable mold, the second mold 12 is configured as a fixed mold, and the first mold 11 approaches and separates from the second mold 12 (y direction in FIG. 2). The cavity 17 is formed between the first mold 11 and the second mold 12 so as to be sealed. The carbon fiber 210 corresponding to the reinforcing base material of the resin 220 is disposed in the cavity 17 in advance in a state of being laminated and preformed.

  The first mold 11 includes a first split mold 11a, a second split mold 11b, and an injection port 15. The first split mold 11a and the second split mold 11b are movable in the y direction that approaches and separates from the second mold 12 by the press unit 20 as shown in FIG. Further, the first split mold 11a is configured to be movable in the x direction intersecting the y direction by a mold moving unit 40 described later. Further, in order to make the inside of the cavity 17 hermetically sealed, a sealing member or the like may be provided on each mating surface of the first split mold 11a, the second split mold 11b, and the second mold 12.

  The injection port 15 is provided in the upper part of the first mold 11. The injection port 15 is connected to the resin injection part 30 so that the resin 220 can be injected from the resin injection part 30 into the cavity 17. The resin 220 is impregnated into the inside from the upper surface of the carbon fiber 210. A suction port 16 is provided at the end of the second mold 12. The suction port 16 is connected to the suction unit 50, and the inside of the cavity 17 is depressurized by the suction unit 50 to near vacuum.

  Referring to FIG. 3A, the first split mold 11a includes a slide portion 13a and a rough surface forming portion 14. The second split mold 11b has an engaging portion 13b that engages with the slide portion 13a on the surface facing the first split mold 11a. The slide portion 13a engages with the engaging portion 13b, and the first split mold 11a is configured to be movable in the x direction with respect to the second split mold 11b. Although the slide part 13a and the engaging part 13b are configured to be slidable by the first split mold 11a by engaging the concavo-convex shape, the present invention is not limited to this.

  The rough surface forming portion 14 is provided on the surface facing the cavity 17 in the first split mold 11a. Further, the rough surface forming portion 14 has a plurality of tapered shapes 14a tapered in the approaching direction with the second mold 12 as shown in FIGS. 3 (A) and 4 (B). In the present embodiment, the rough surface forming portion 14 is configured by arranging a plurality of quadrangular pyramid shapes as shown in FIG. The shape of the quadrangular pyramid has a top portion 14b and a bottom portion 14c as shown in FIG.

  For example, the depth h (see FIG. 4B) from the top 14b to the bottom 14c of the rough surface forming portion 14 can be about 100 μm, but is not limited thereto. On the surface of the adhesive portion 201 of the composite material 200, the rough surface forming portion 14 is transferred after molding to form a concavo-convex shape having a concave portion 201a and a convex portion 201c. As for the convex part 201c, the vertex side is shaved off by the method mentioned later, and the fine uneven | corrugated | grooved part 201b as shown to FIG. 1 (B) is formed. When the apex side of the convex portion 201c is scraped off, the concave-convex shape of the adhesive portion 201 is shallower than the concave-convex shape to which the shape of the rough surface forming portion 14 is transferred as shown in FIGS. Formed.

  The press unit 20 is connected to the first mold 11 of the mold 10, and moves the first mold 11 up and down by the control unit 70. The press unit 20 includes a cylinder 21 using fluid pressure such as hydraulic pressure, and performs mold clamping or mold opening by controlling the hydraulic pressure or the like.

  The resin injection unit 30 includes a main agent tank 31, a curing agent tank 32, a valve 33, and a tube 34. The main agent tank 31 is filled with the main agent, and the curing agent tank 32 is filled with the curing agent. The valve 33 adjusts the injection pressure into the cavity 17 of the resin 220 formed by mixing the main agent and the hardener flowing in from the main agent tank 31 and the hardener tank 32. The resin 220 is discharged from the main agent tank 31 and the curing agent tank 32 to the injection port 15 through the valve 33. The tube 34 forms a main agent and hardener transport passage from the main agent tank 31 and the hardener tank 32 to the valve 33, and a transport passage of the resin 220 from the valve 33 to the injection port 15.

  The mold moving part 40 includes a connection part 41 connected to the first split mold 11a, a cylinder 42, and a power part 43. As shown in FIG. 2, the connecting portion 41 is connected in advance to the first split mold 11a using a mechanical element such as a screw. The cylinder 42 is configured to be movable in the x direction of FIG. 2 by adjusting fluid pressure such as air pressure or hydraulic pressure. The power unit 43 incorporates a configuration such as a motor for operating the cylinder 42 in the y direction of FIG. Further, when the clamping of the first mold 11 is released by the cylinder 21, the first split mold 11 a and the second split mold 11 b constituting the first mold 11 have a slight gap from the composite material 200. The gap C is formed between the rough surface forming portion 14 of the first split mold 11a and the bonding portion 201.

  The suction unit 50 has a vacuum pump (not shown). The suction part 50 sucks the air in the cavity 17 from the suction port 16 before the resin 220 is injected, and makes the cavity 17 in a substantially vacuum state.

  The mold temperature adjusting unit 60 heats the mold 10 to the curing temperature of the resin 220 and cures the resin 220 injected into the cavity 17. The mold temperature adjusting unit 60 is configured as an electric heater, and heats the mold 10 to cure the resin 220 in the cavity 17. The mold temperature adjusting unit 60 is not limited to this, and when the resin 220 is a thermoplastic resin, the mold is not only heated by an electric heater but also heated to circulate cooling water to cure the resin. The formed mold 10 may be cooled.

  The control unit 70 controls the overall operation of the molding apparatus 100. The control unit 70 includes a storage unit 71, a calculation unit 72, and an input / output unit 73. The input / output unit 73 is connected to the press unit 20, the resin injection unit 30, the mold moving unit 40, the suction unit 50, and the mold temperature adjusting unit 60. The storage unit 71 includes a ROM and a RAM, and stores in advance data such as the positions of the first mold 11, the first divided mold 11 a of the first mold 11, and the second mold 12.

  The calculation unit 72 is configured mainly with a CPU, and receives data from the press unit 20 and the mold moving unit 40 via the input / output unit 73. The calculation unit 72 is based on the data read from the storage unit 71 and the data received from the input / output unit 73, the position of the piston 42 of the valve 40, the suction pressure of the suction unit 50, and the mold temperature adjusting unit 60. Calculate the heating temperature.

  A control signal based on the calculated data is transmitted to the valve 40, the suction unit 50 and the mold temperature adjusting unit 60 via the input / output unit 73. In this way, the control unit 70 controls the movement operation of the first mold 11 and the first split mold 11a by the press unit 20, the injection of the resin 220, the suction pressure by the suction unit 50, the mold temperature, and the like.

(Composite material molding method)
Next, a method for forming the composite material 200 will be described with reference to FIG. An outline of the molding method of the composite material 200 is as follows: a step of preparing a pair of molds (step S1), a step of arranging the carbon fibers 210 (step S2), and a step of reducing the pressure in the cavity 17 (step S3). The step of injecting the resin 220 (steps S4 and S5), the step of curing the resin 220 (step S6), the step of forming the gap C (step S7), and the step of sliding the first split mold 11a (step S7). Step S8) and a demolding step (Step S9). Hereinafter, each process is explained in full detail. Note that the control unit 70 controls the processing of each step except for the operations of steps S1, S2, and S9.

  First, the mold 10 having the rough surface forming portion 14 is prepared (step S1). As described above, the rough surface forming portion 14 has a plurality of tapered shapes 14 a that taper in the approaching direction with the second mold 12.

  Next, the carbon fibers 210 are laminated, placed in the cavity 17 of the mold 10 and preformed (step S2). At this time, the inner surface of the mold facing the cavity 17 is degreased using a predetermined organic solvent, and a release agent is applied.

  Next, the mold 10 is closed, and the air in the cavity 17 is sucked from the suction port 16 by the suction part 50, and the inside of the cavity 17 is brought into a substantially vacuum state (step S3). By performing suction by the suction unit 50, bubbles generated on the surface can be prevented, voids and pits of the composite material 200 which is a molded product can be reduced, and mechanical properties and design properties of the composite material 200 can be improved. Can do.

  Next, the resin 220 is injected into the cavity 17 until the injection of the resin 220 by the resin injection unit 30 reaches a specified amount (step S5: No) (step S4).

  When the specified amount of the resin 220 has been injected into the cavity 17 (step S5: Yes), the resin 220 in the cavity 17 is left until it is sufficiently cured (step S6). Note that the entire mold 10 is temperature-adjusted in advance to the curing temperature of the resin 220 before the resin 220 is injected by the mold temperature adjusting unit 60.

  As shown in FIGS. 6A and 6B, the composite material 200 cured by the rough surface forming portion 14 of the first split mold 11a has a concavo-convex shape including a concave portion 201a and a convex portion 201c. An adhesive portion 201 is formed by being transferred to the surface. Further, since the rough surface forming portion 14 is formed in the tapered shape 14a, the shape connecting the concave portion 201a and the convex portion 201c of the adhesive portion 201 of the composite material 200 is similarly formed by being transferred to the tapered shape.

  When the resin 220 is sufficiently cured, the mold clamping of the first mold 11 by the press unit 20 is released. The mold clamping is released by moving the first mold 11 by a small distance in the direction away from the second mold 12 (upward in FIG. 7) by the press unit 20. As a result, a gap C is formed between the rough surface forming portion 14 and the bonding portion 201 (step S7). As shown in FIG. 8, the gap C is formed so that the convex portion 201 c of the bonding portion 201 is closer to the bottom portion 14 c of the first split mold 11 a than the top portion 14 b of the rough surface forming portion 14.

  Next, as shown in FIG. 9, the first split mold 11 a of the first mold 11 is slid along the slide portion 13 a in the x direction with respect to the second mold 12. At this time, as shown in FIGS. 9 and 10, the tapered shape 14a of the rough surface forming portion 14 contacts the apex side of the convex portion 201c of the adhesive portion 201, and the apex side of the protruding convex portion 201c is scraped off.

  As shown in FIG. 10, the scraped portion is formed on the fine uneven portion 201b (step S8). Since the surface of the adhesion part 201 has the taper-shaped convex part 201c, the uneven | corrugated shape of the adhesion part 201 becomes small, so that it leaves | separates from a root. Therefore, the volume to be scraped off by the rough surface forming portion 14 is reduced as compared with a case where the adhesive portion 201 does not have a tapered shape, for example, has a rectangular parallelepiped convex portion 201c. Therefore, the resistance at the time of molding can be reduced, scraping can be facilitated, and the moldability can be improved.

  Next, when the molding die 10 is opened and the molded composite material 200 is demolded, the molding is completed (step S9).

  Next, the function and effect according to this embodiment will be described. From the viewpoint of weight reduction and the like, a composite material containing a resin may be used for an automobile part, and the composite material containing a resin as a base material in an automobile may be bonded to a counterpart member by an adhesive. At that time, conventionally, the adhesive strength of the part to be bonded is improved, or when the release agent contained in the resin as the base material is deposited on the surface of the composite material 200, the release agent is removed from the surface. For this reason, blasting and sandpaper reforming are performed. However, from the viewpoint of cost reduction, there is a demand for a method and apparatus that can improve the strength of the bonded portion without performing a specific process for maintaining the bonding strength as much as possible.

  On the other hand, the molding method and molding apparatus 100 of the composite material 200 according to the present embodiment include the first mold 11 having the rough surface forming portion 14 roughened at a location corresponding to the bonding portion 201, and the first mold 11. The second mold 12 facing the mold 11 is clamped to form the cavity 17, and the resin 220 is injected in a state in which the reinforcing base 210 is disposed in the cavity 17, and the resin 220 is cured and the second mold 12 is cured. An uneven shape corresponding to the rough surface forming portion 14 in the first mold 11 is formed in the bonding portion 201 in the composite material 200, and the mold clamping of the first die 11 is released, so that the rough surface forming portion 14 and the bonding portion 201 A gap C is formed therebetween, and the first die 11 is slid with respect to the second die 12 to scrape off the apex side of the convex portion 201c in the concavo-convex shape.

  By sliding the first die 11 with respect to the second die 12 with the gap C formed in this way, the rough surface forming portion 14 cuts the uneven convex portion 201c formed in the composite material 200. The surface can be further roughened to improve the adhesive strength.

  In addition, it is possible to remove the release agent deposited on the surface of the concavo-convex shape by shaving the apex side of the concavo-convex shape convex portion 201c, and a unique process for maintaining the adhesive strength by conventional blasting or sandpaper Can contribute to cost reduction.

  Further, by moving the first mold 11 relative to the second mold 12 by the mold moving unit 40, the uneven shape after molding is more than the uneven shape to which the shape of the rough surface forming portion 14 is transferred. Is also formed on the fine concavo-convex portion 201b having a shallow concavo-convex shape. Therefore, it is possible to improve the adhesive strength by roughening the bonding portion 201 to the same extent as in conventional blasting.

  The first mold 11 includes a first split mold 11a and a second split mold 11b, and the first split mold 11a is configured to be slidable separately from the second split mold 11b. . Therefore, only the first split mold 11a constituting the first mold 11 can be slid to cut the apex side of the convex portion 201c, and other parts can be prevented from being cut, so that the surface is roughened. It is possible to increase the adhesive strength by roughening only the necessary parts, and by preventing the other parts from being scraped off, it is possible to prevent the surface from being unnecessarily damaged and to finish the surface other than the adhesive part 201. Can be good.

  Further, the rough surface forming portion 14 is configured to have a tapered shape 14 a that is tapered in the approaching direction to the second mold 12. Since the volume of the uneven shape decreases as the distance from the root increases, the rough surface forming portion 14 can easily be scraped off, and the moldability can be improved.

  In addition, a cone such as a quadrangular pyramid can be cited as an example of the shape having the tapered shape 14a.

  Further, in the composite material 200, the use of the carbon fiber 210 as the reinforced base material of the resin 220 can reduce the thermal expansion coefficient and improve the dimensional stability, and reduce the deterioration of the mechanical characteristics even at high temperatures. Can do.

  Further, by applying the composite material 200 to automobile parts such as the skeleton parts 301 and 302 and the outer plate part 303, it is possible to provide a composite material that can be reduced in weight at a lower cost.

  In addition, this invention is not limited only to embodiment mentioned above, A various change is possible in a claim. In the present embodiment, the rough surface forming portion 14 is configured by arranging a plurality of quadrangular pyramid shapes. However, the rough surface forming portion 14 is not limited to this. For example, the rough surface forming portion 14 forms a rough surface on the bonding portion 201 such as a quadrangular prism or a triangular pyramid. Any shape is acceptable.

10 Mold,
11 First mold,
11a The first divided type,
11b the second split type,
12 Second mold,
13a slide part,
13b engaging portion,
14 Rough surface forming part,
14a taper shape,
14b top,
15 inlet,
16 Suction port,
17 cavities,
20 Press department,
30 resin injection part,
31 Main agent tank,
32 Hardener tank,
40 Mold moving part,
50 suction part,
60 Mold temperature control part,
70 control unit,
100 molding equipment,
200 composite materials,
201 bonding part,
201a recess,
201b Fine irregularities,
201c convex part,
210 carbon fiber (reinforced substrate),
220 resin,
300 car body,
C gap.

Claims (14)

A method of forming a composite material having an adhesive portion that adheres to a counterpart member,
A cavity is formed by clamping a first mold having a roughened surface forming portion at a location corresponding to the adhesive portion and a second mold facing the first mold;
Injecting the resin in a state where the reinforced base material is disposed in the cavity,
The resin is cured to form a concavo-convex shape in the adhesive portion corresponding to the rough surface forming portion in the first mold,
Releasing the mold clamping of the first mold to form a gap between the rough surface forming portion and the adhesive portion;
A method for molding a composite material, wherein the vertex side of the convex portion in the concavo-convex shape is scraped off by sliding the first mold and the second mold relative to each other.   When the first mold and the second mold are slid relative to each other, the portion where the apex side of the convex portion is scraped off is the uneven shape to which the shape of the rough surface forming portion is transferred. The method for molding a composite material according to claim 1, wherein the depth is smaller than that of the composite material.   The first mold includes a first split mold in which the rough surface forming portion is formed, and a second split mold that forms the cavity together with the first split mold, and the first split mold The method for molding a composite material according to claim 1 or 2, wherein the mold and the second divided mold are configured to be separately movable.   The said rough surface formation part is a shaping | molding method of the composite material of any one of Claims 1-3 which has a some taper shape tapered in the approach direction with the said 2nd type | mold.   The method for molding a composite material according to claim 4, wherein the rough surface forming portion is formed by projecting a plurality of cone shapes in a direction approaching the second mold.   The method for molding a composite material according to any one of claims 1 to 5, wherein the reinforced substrate is formed of carbon fiber.   The method for forming a composite material according to claim 1, wherein the composite material is used for an automobile part. An apparatus for molding a composite material having an adhesive portion for adhering to a counterpart member,
A first mold and a second mold that are openable and closable, each having a cavity in which a reinforcing substrate is disposed;
A resin injection portion for injecting resin into the cavity;
A rough surface forming portion that is provided in the first mold, the portion corresponding to the bonding portion is roughened, and the roughened portion is transferred to form an uneven shape on the bonding portion ;
Wherein between said composite material first mold, in a state where the provided irregularities smaller gap than the depth of the shape of the bonding portion, and the first mold slide relative to the second mold to have a, a mold moving unit scraping the vertex side of the convex portion in the uneven shape, the molding apparatus of the composite material.   When the first mold is slid with respect to the second mold by the mold moving part, the shape of the rough surface forming part is transferred to the place where the apex side of the convex part is scraped off. The apparatus for molding a composite material according to claim 8, wherein the apparatus is formed to be shallower than the uneven shape.   The first mold includes a first split mold in which the rough surface forming portion is formed, and a second split mold that forms the cavity together with the first split mold, and the first split mold The composite material molding apparatus according to claim 8 or 9, wherein the mold and the second divided mold are configured to be separately movable.   The said rough surface formation part is a shaping | molding apparatus of the composite material of any one of Claims 8-10 which has a some taper shape tapered in the approach direction with the said 2nd type | mold.   The said rough surface formation part is a shaping | molding apparatus of the composite material of Claim 11 which protrudes and forms the several cone shape in the approach direction with the said 2nd type | mold.   The said reinforcement base material is a shaping | molding apparatus of the composite material of any one of Claims 8-12 formed from carbon fiber.   The composite material molding apparatus according to claim 8, wherein the composite material is a material for automobile parts.