WO2017183467A1 - 複合材料成形装置及び複合材料成形方法 - Google Patents
複合材料成形装置及び複合材料成形方法 Download PDFInfo
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- WO2017183467A1 WO2017183467A1 PCT/JP2017/014308 JP2017014308W WO2017183467A1 WO 2017183467 A1 WO2017183467 A1 WO 2017183467A1 JP 2017014308 W JP2017014308 W JP 2017014308W WO 2017183467 A1 WO2017183467 A1 WO 2017183467A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
- B29C65/1435—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. transmission welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C43/32—Component parts, details or accessories; Auxiliary operations
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- B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0811—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using induction
- B29C2035/0816—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using induction using eddy currents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C43/32—Component parts, details or accessories; Auxiliary operations
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- B29C2043/3613—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons applying pressure locally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
- B29C2043/522—Heating or cooling selectively heating a part of the mould to achieve partial heating, differential heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/34—Moulds or cores; Details thereof or accessories therefor movable, e.g. to or from the moulding station
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3807—Resin-bonded materials, e.g. inorganic particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/40—Plastics, e.g. foam or rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/10—Thermosetting resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0872—Prepregs
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- B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
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- B29K2307/00—Use of elements other than metals as reinforcement
- B29K2307/04—Carbon
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- B29K2671/00—Use of polyethers, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone, or derivatives thereof, for preformed parts, e.g. for inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K2701/00—Use of unspecified macromolecular compounds for preformed parts, e.g. for inserts
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- B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
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Definitions
- the present invention relates to a composite material forming apparatus and a composite material forming method.
- composite materials in which reinforcing fibers are impregnated with a thermosetting resin are known.
- Composite materials are used in aircraft, automobiles, ships and the like.
- a method of manufacturing a composite material a method is known in which a sheet of reinforcing fibers and a sheet of a thermosetting resin are laminated, and a magnetic field is applied to the laminated sheet to heat it (see Patent Document 1).
- a method of producing a composite material using an autoclave In order to remove the gas generated inside the thermoplastic resin, a method of producing a composite material using an autoclave is known. In this method, it is necessary to go through a lamination step, a debulk step, and a bagging step, which are preparation steps in a method of producing a composite material, using a prepreg as a composite material.
- the laminating step is a step of laminating a prepreg of a composite material.
- the debulk process is a process of removing air from the prepreg of the composite material every several sheets.
- the bagging process is a process in which a prepreg of a composite material from which air has been removed is contained in a bagging film, and the interior of the bagging film is vacuumed. Therefore, this method has a problem that it is inefficient because the number of processes is large and the time taken for the process is long.
- the present invention has been made in view of the above, and provides a composite material molding apparatus and a composite material molding method for efficiently molding a composite material while suitably removing the gas generated inside the thermosetting resin.
- the purpose is to
- the composite material molding apparatus includes a first member and a second member transparent to a magnetic field, and between the first member and the second member, A magnetic field is applied to the predetermined area of the composite material pressurized by the pressurizing section, and a pressurizing section that applies pressure to sandwich a predetermined area of the composite material in which the reinforcing fiber is impregnated with the thermosetting resin, and And a heating unit for heating the predetermined area of the composite material.
- the composite material can be heated while being pressurized in the atmosphere, it is possible to efficiently form the composite material while suitably removing the gas generated inside the thermosetting resin. it can. According to this configuration, in the manufacturing process of the composite material, since it is not necessary to go through the preparation process such as the laminating process, the debulk process and the bagging process, the composite material can be efficiently formed.
- the apparatus further includes a moving mechanism that synchronously moves, in the composite material, a pressing area in which the pressing unit presses and a heating area in which the heating unit heats.
- the composite material can be efficiently formed while suitably removing the gas generated inside the thermosetting resin.
- the moving mechanism preferably moves the pressure area and the heating area from a central area to an outer peripheral area of the composite material. According to this configuration, the gas generated inside the thermosetting resin can be more suitably removed.
- the moving mechanism may move the first member or the second member and the heating unit with respect to the composite material.
- the moving mechanism may move the composite material relative to the first member or the second member and the heating unit.
- the first member or the second member has a taper from the central region to the outer peripheral region of the surface facing the composite material. According to this configuration, the gas generated inside the thermosetting resin can be more suitably removed.
- the heating unit preferably applies a high frequency magnetic field of 900 kHz or more. According to this configuration, the composite material can be efficiently heated.
- the first member and the second member include at least one of a polyetheretherketone resin and a ceramic. According to this configuration, the magnetic field can be efficiently applied to the composite material while suitably removing the gas generated inside the thermosetting resin.
- the composite material molding method impregnates a reinforcing fiber with a thermosetting resin between a first member and a second member that are transparent to a magnetic field. Applying a magnetic field to the predetermined area of the composite material pressurized in the pressurizing step, and applying pressure to sandwich the predetermined area of the composite material, and heating the predetermined area of the composite material And a heating step.
- the composite material can be heated while being pressurized in the atmosphere, it is possible to efficiently form the composite material while suitably removing the gas generated inside the thermosetting resin. it can. According to this configuration, in the manufacturing process of the composite material, since it is not necessary to go through the preparation process such as the laminating process, the debulk process and the bagging process, the composite material can be efficiently formed.
- the composite material molding method it is preferable to further include a moving step of synchronously moving in the composite material the pressing region to be pressed in the pressing step and the heating region to be heated in the heating step. According to this configuration, regardless of the size and shape of the composite material, the composite material can be efficiently formed while suitably removing the gas generated inside the composite material.
- the moving step in the moving step, it is preferable to move the pressing region and the heating region from the central region of the composite material to the outer peripheral region. According to this configuration, the gas generated inside the thermosetting resin can be more suitably removed.
- the first member or the second member and a heating unit that applies a magnetic field to the composite material are moved with respect to the composite material.
- the composite material may be moved with respect to the first member or the second member and a heating unit that applies a magnetic field to the composite material.
- the first member or the second member has a taper from the central region to the outer peripheral region of the surface facing the composite material. According to this configuration, the gas generated inside the thermosetting resin can be more suitably removed.
- a high frequency magnetic field of 900 kHz or more is preferably applied to the predetermined region of the composite material. According to this configuration, the composite material can be efficiently heated.
- the first member and the second member preferably include at least one of a polyetheretherketone resin and a ceramic. According to this configuration, the magnetic field can be efficiently applied to the composite material while suitably removing the gas generated inside the thermosetting resin.
- molding method which shape
- FIG. 1 is a schematic configuration view of a composite material molding apparatus according to a first embodiment of the present invention.
- FIG. 2 is a graph showing an example of the relationship between the time when the heating unit heats the composite material and the temperature of the composite material.
- FIG. 3 is a view showing an example of a temperature distribution in the composite material when the heating unit heats the composite material.
- FIG. 4 is a diagram showing an example of the movement path of the pressure area.
- FIG. 5 is a diagram showing an example of the movement path of the heating area.
- FIG. 6 is a flowchart of the composite material molding method according to the first embodiment of the present invention.
- FIG. 7 is a schematic configuration view of a composite material molding apparatus according to a second embodiment of the present invention.
- FIG. 8 is a schematic configuration view of a composite material molding apparatus according to a third embodiment of the present invention.
- FIG. 9 is a view of a first member in a composite material molding apparatus according to a third embodiment of the present invention as viewed from the composite material side.
- FIG. 10 is a schematic block diagram of a composite material molding apparatus according to a fourth embodiment of the present invention.
- FIG. 11 is a view of a first member in a composite material molding apparatus according to a fourth embodiment of the present invention as viewed from the composite material side.
- FIG. 12 is a schematic configuration view of a composite material molding apparatus according to a fifth embodiment of the present invention.
- FIG. 13 is a schematic configuration view showing an example of the case where the pressure area and the heating area are moved in the composite material molding apparatus according to the fifth embodiment of the present invention.
- FIG. 1 is a schematic block diagram of a composite material molding apparatus 10 according to a first embodiment of the present invention.
- the composite material forming apparatus 10 illustrated in FIG. 1 includes a pressure unit 12, a heating unit 14, a moving mechanism 16, and a control unit 18.
- the composite material forming apparatus 10 processes the composite material 20, in which reinforcing fibers are impregnated with a thermosetting resin, from a softened state or a semi-cured state to a cured state while forming the composite material 20 into a predetermined size and a predetermined shape.
- the composite material 20 is orthogonal to the direction along the Z direction in FIG. 1 which is the vertical direction in the composite material forming apparatus 10, and from the X direction and FIG. 3 in FIG. It is arrange
- the composite material 20 is arranged and shaped such that reinforcing fibers described later extend along a horizontal plane including the X direction in FIG. 1 and the Y direction shown in FIGS. 3 to 5.
- the composite material 20 has a top surface 20 a and a bottom surface 20 b in the first embodiment.
- the upper surface 20a is directed in the + Z direction of FIG.
- the lower surface 20b is directed in the composite material forming apparatus 10 in the -Z direction of FIG.
- the composite material 20 is not limited to a flat plate shape, and may be a complicated shape having a curve as described in the following embodiments.
- the reinforcing fibers contained in the composite material 20 have electrical conductivity, they react with the magnetic field to generate an eddy current inside.
- the reinforcing fiber contained in the composite material 20 generates heat due to the electrical resistance of the reinforcing fiber itself due to the generation of an eddy current inside.
- the heat generated by the reinforcing fibers contained in the composite material 20 is transferred to the thermosetting resin contained in the composite material 20. That is, the composite material 20 is a composite material that generates heat in response to the magnetic field.
- the reinforcing fibers contained in the composite material 20 extend along a horizontal plane including the X direction in FIG. 1 and the Y direction shown in FIGS. 3 to 5.
- the composite material 20 has light weight and high strength.
- the reinforcing fibers included in the composite material 20 are exemplified by carbon fibers in the first embodiment, but are not limited thereto, and may be other metal fibers.
- the thermosetting resin contained in the composite material 20 is exemplified by a resin having an epoxy resin in the first embodiment. When the thermosetting resin contained in the composite material 20 has an epoxy resin, it is preferable because it has light weight and higher strength.
- the pressure unit 12 presses a predetermined area of the composite material 20.
- the pressure unit 12 includes a first member 22 and a second member 24.
- the first member 22 has a flat surface 22a in the -Z direction.
- the first member 22 contacts a predetermined area of the upper surface 20 a of the composite material 20 at the flat surface 22 a and applies a pressure in the ⁇ Z direction to the predetermined area of the composite material 20.
- the second member 24 is fixed and installed.
- the second member 24 has a flat surface 24 a in the + Z direction.
- the second member 24 contacts the entire surface of the lower surface 20 b of the composite material 20 at the plane surface 24 a to support the composite material 20 in the + Z direction.
- the pressing unit 12 presses the predetermined area of the composite material 20 between the flat surface 22 a of the first member 22 and the flat surface 24 a of the second member 24.
- the pressing unit 12 presses the predetermined area of the composite material 20 between the flat surface 22 a of the first member 22 and the flat surface 24 a of the second member 24. Is formed into a flat plate shape.
- the pressing unit 12 presses a region of the upper surface 20 a of the composite material 20 in contact with the flat surface 22 a.
- the region where the pressing unit 12 presses is hereinafter referred to as a pressing region.
- the area in the direction along the horizontal plane of the pressure area is the extent of the area of the plane 22a.
- the pressure unit 12 includes a pressure cylinder 26 in the first embodiment.
- the first cylinder 22 is connected to the pressure cylinder 26 in the + Z direction.
- the first member 22 is supported by the pressure cylinder 26 in the + Z direction.
- the first member 22 is installed in the -Z direction.
- the pressure cylinder 26 is electrically connected to the control unit 18.
- the pressure cylinder 26 changes the pressure that the first member 22 applies to a predetermined area of the composite material 20 based on the control of the control unit 18.
- the pressure cylinder 26 is connected to and supported by the moving mechanism 16.
- the pressure cylinder 26 moves relative to the composite material 20 together with the first member 22 connected to the pressure cylinder 26 by the drive of the moving mechanism 16.
- the first member 22 and the second member 24 are both made of a material transparent to a magnetic field. That is, the first member 22 and the second member 24 are both made of a material that hardly responds to the magnetic field and hardly generates an eddy current according to the magnetic field. Therefore, the first member 22 and the second member 24 are both transparent to the magnetic field. That is, both the first member 22 and the second member 24 hardly react to the magnetic field, and hardly generate an eddy current according to the magnetic field. It is preferable that the first member 22 and the second member 24 both include at least one of PEEK resin and ceramic resin exemplified as a material transparent to a magnetic field in the first embodiment. When the first member 22 and the second member 24 include at least one of PEEK resin and ceramic resin, it is preferable because the transparency to a magnetic field, the pressure resistance, and the heat resistance are high.
- the heating unit 14 applies a magnetic field to a predetermined area of the composite material 20 pressurized by the pressure unit 12 to heat the predetermined area of the composite material 20.
- the heating unit 14 heats a predetermined region of the composite material 20 to process the thermosetting resin contained in the composite material 20 into a cured state, and the composite material 20 is shaped by the pressing unit 12. Fix it.
- the heating unit 14 is exemplified by a coil with a diameter R that generates a magnetic field with respect to the composite material 20.
- the heating portion 14 extends in a direction perpendicular to the direction in which the composite material 20 extends, with the central axis of the coil. That is, in the heating unit 14, the central axis of the coil extends along the Z direction.
- the heating unit 14 is disposed such that the end in the + Z direction of the heating unit 14 is separated from the lower surface 20 b of the composite material 20 by a distance d.
- the distance d is, for example, 1.5 cm.
- the diameter R is, for example, 15 cm.
- the heating unit 14 is electrically connected to the control unit 18.
- the heating unit 14 is supplied with power from the control unit 18 and generates a magnetic field based on the control of the control unit 18.
- the heating unit 14 generates a magnetic field including magnetic lines of force M along the direction of the central axis, ie, along the direction orthogonal to the plane in which the composite material 20 extends.
- the heating unit 14 heats the composite material 20 by generating a magnetic field along the direction of the central axis, that is, generating a magnetic field along a direction orthogonal to the plane in which the composite material 20 extends.
- the heating unit 14 heats a region of the composite material 20 in which the end in the + Z direction of the heating unit 14 faces in the + Z direction.
- the area where the heating unit 14 heats is hereinafter referred to as a heating area.
- the area in the direction along the horizontal plane of the heating area is a measure of the area of a circle of diameter R.
- the heating unit 14 preferably applies a high frequency magnetic field of 900 kHz or more to the heating area of the composite material 20.
- the heating unit 14 generates a magnetic field along a direction orthogonal to the plane in which the composite material 20 extends, thereby generating a magnetic field along a direction perpendicular to the direction in which the reinforcing fibers included in the composite material 20 extend.
- the reinforcing fibers contained in the composite material 20 generate heat most efficiently when a magnetic field is applied in a direction perpendicular to the direction in which the reinforcing fibers of the composite material 20 extend. Therefore, the heating unit 14 preferably generates a magnetic field along the direction orthogonal to the direction in which the reinforcing fibers of the composite material 20 extend.
- the moving mechanism 16 is connected to the side opposite to the side on which the first member 22 is provided in the pressure cylinder 26 of the pressure unit 12.
- the moving mechanism 16 is connected to the side opposite to the side facing the composite material 20 in the heating unit 14.
- the moving mechanism 16 is electrically connected to the control unit 18.
- the moving mechanism 16 is exemplified by a robot arm and a guide rail type driving device, but is not limited thereto, and a known driving device which holds movably along the direction of the horizontal surface is applied.
- the moving mechanism 16 moves the first member 22 along the horizontal surface direction via the pressure cylinder 26 under the control of the control unit 18. Thereby, the moving mechanism 16 changes the relative position of the first member 22 with respect to the composite material 20.
- the moving mechanism 16 moves the pressure area by changing the relative position of the first member 22 to the composite material 20.
- the moving mechanism 16 moves the heating unit 14 along the horizontal direction under the control of the control unit 18. Thereby, the moving mechanism 16 changes the relative position of the heating unit 14 with respect to the composite material 20.
- the moving mechanism 16 moves the heating area by changing the relative position of the heating unit 14 to the composite material 20.
- the moving mechanism 16 synchronously changes the relative position of the first member 22 to the composite material 20 and the relative position of the heating unit 14 to the composite material 20 under the control of the control unit 18.
- the moving mechanism 16 synchronously changes the relative position of the first member 22 with respect to the composite material 20 and the relative position of the heating unit 14 with respect to the composite material 20 to thereby apply the pressure area and the heating area. Move in sync.
- the control unit 18 is electrically connected to the pressure cylinder 26 of the pressure unit 12.
- the control unit 18 is electrically connected to the heating unit 14.
- the control unit 18 is electrically connected to the moving mechanism 16.
- the control unit 18 controls the pressurizing unit 12 by controlling the pressurizing cylinder 26.
- the control unit 18 controls the pressure applied by the pressure unit 12 to the pressure area by controlling the pressure unit 12.
- the control unit 18 controls the heating unit 14.
- the control unit 18 controls the heating unit 14 to control the magnetic field applied to the heating region.
- the control unit 18 controls the moving mechanism 16.
- the control unit 18 controls the movement mechanism 16 to control the path of the pressure area by the pressure unit 12 and the path of the heating area by the heating unit 14.
- the control unit 18 can synchronize the path of the pressure area and the path of the heating area by controlling the moving mechanism 16.
- the control unit 18 can determine at any time whether or not all the regions intended to be pressurized and heated in the composite material 20 have been pressurized and heated.
- the control unit 18 includes a storage unit and a processing unit.
- the storage unit includes, for example, storage devices such as a RAM, a ROM, and a flash memory, and stores software programs processed by the processing unit, data to be referred to by the software programs, and the like.
- the storage unit also functions as a storage area in which the processing unit temporarily stores processing results and the like.
- the processing unit reads out the software program and the like from the storage unit and processes the software program and the like to exhibit the function according to the contents of the software program.
- FIG. 2 is a graph showing an example of the relationship between the time when the heating unit 14 heats the composite material 20 and the temperature of the composite material 20.
- Heating unit 14 as shown in FIG. 2, in a few seconds from the heating start time t s to the heating end time t f, it is possible to raise the temperature of the composite material 20 from about 30 ° C. to about 300 ° C..
- the heating unit 14 changes the heating temperature, the temperature rising rate, and the heating time of the composite material 20 according to the specific composition of the composite material 20, for example, the composition of the thermosetting resin contained in the composite material 20. be able to.
- FIG. 3 is a view showing an example of a temperature distribution in the composite material 20 when the heating unit 14 heats the composite material 20.
- FIG. 3 is a view of the composite material 20 from the upper side in the vertical direction, that is, from the + Z direction in FIG.
- the X direction in FIG. 3 is common to FIG.
- the Y direction in FIG. 3 is a direction orthogonal to the X direction and the Z direction in FIG. 1, and is a direction included in the horizontal plane.
- the temperature in the central heating area H which is the center of the heating area of the heating unit 14 is the highest, and the distribution is such that the temperature drops when it is slightly away from the central heating area It is.
- the heating unit 14 can intensively and selectively heat a local region including only the heating region of the composite material 20 and the vicinity thereof as understood from the temperature distribution shown in FIG. 3.
- FIG. 4 is a view showing an example of the movement path 28 a of the pressure area.
- FIG. 4 is a view of the composite material 20 as viewed from above in the vertical direction, that is, from the + Z direction of FIG. 1, as in FIG. 3.
- the movement path 28 a is obtained by connecting the path of the center point of the pressure area by a curve.
- the movement path 28 a is directed from the central region of the composite material 20 to the outer peripheral region.
- the movement path 28 a spirals from the center point of the composite material 20 toward the outer peripheral area so as not to form a gap in the pressure area.
- the movement path 28a overlaps the path along which the movement mechanism 16 moves the center point of the plane 22a of the first member 22 by a curve.
- the moving mechanism 16 moves the central point of the flat area 22a of the first member 22 along the moving path 28a from the central area of the composite material 20 to the outer peripheral area, thereby the central point of the pressing area is the central area of the composite material 20. To the outer area.
- FIG. 5 is a view showing an example of the movement path 28b of the heating area.
- FIG. 5 is a view of the composite material 20 as viewed from above in the vertical direction, ie, from the + Z direction of FIG. 1, as in FIGS. 3 and 4.
- the movement path 28 b is a curve connecting the path of the center point of the heating area.
- the movement path 28 b is directed from the central area of the composite material 20 to the outer peripheral area.
- the movement path 28 b spirals from the center point of the composite material 20 toward the outer peripheral area so as not to form a gap in the heating area.
- the movement path 28 b overlaps the path along which the movement mechanism 16 moves the central axis of the heating unit 14 by a curve.
- the moving mechanism 16 moves the central point of the heating area from the central area of the composite material 20 to the outer peripheral area by moving the central axis of the heating unit 14 from the central area to the outer peripheral area of the composite material 20 along the moving path 28b.
- the movement path 28a of the pressure area and the movement path 28b of the heating area overlap each other when viewed from the + Z direction.
- the moving mechanism 16 synchronizes the central point of the plane 22a of the first member 22 along the moving path 28a, the central axis of the heating unit 14 along the moving path 28b, and the central area to the outer peripheral area of the composite material 20. Move it. Thereby, the moving mechanism 16 moves the pressing area and the heating area synchronously from the central area of the composite material 20 to the outer peripheral area.
- FIG. 6 is a flowchart of the composite material molding method according to the first embodiment of the present invention.
- the composite material molding method according to the first embodiment which is a processing method performed by the composite material molding apparatus 10 according to the first embodiment, will be described with reference to FIG.
- the composite material molding method according to the first embodiment includes, as shown in FIG. 6, a pressing step S12, a heating step S14, a heated area confirmation step S16, and a moving step S18.
- the pressurizing step S12, the heating step S14, the heated area confirmation step S16 and the moving step S18 will be simply referred to as step S12, step S14, step S16 and step S18, respectively.
- the composite material 20 in which the reinforcing fiber is impregnated with the thermosetting resin is disposed on the flat surface 24 a of the second member 24 of the pressing unit 12 in a flat plate shape extending along the horizontal surface.
- the pressure unit 12 brings the flat surface 22a of the first member 22 into contact with a predetermined region of the upper surface 20a of the composite material 20 based on the control of the control unit 18, and the first member 22 is moved via the pressure cylinder 26.
- the predetermined area of the upper surface 20a of the composite material 20 is pressurized (step S12).
- the pressure unit 12 brings the flat surface 22a of the first member 22 into contact with the central region of the upper surface 20a of the composite material 20, and the first member 22 is made of the composite material 20 via the pressure cylinder 26. It is preferable to press the central region of the composite material 20 by pressing the central region of the upper surface 20a. That is, in the first step S12, it is preferable to set the pressure area by the pressure unit 12 in the central area of the composite material 20.
- the heating unit 14 applies a magnetic field to a pressing region, which is a predetermined region in the composite material 20 pressed by the pressing unit 12 in step S12, based on the control of the control unit 18, thereby causing the composite material 20 to operate.
- the pressure area which is a predetermined area is heated (step S14).
- the heating unit 14 heats the pressure area of the composite material 20 to process the thermosetting resin contained in the pressure area of the composite material 20 into a cured state.
- the heating area by the heating unit 14 is set so as to completely overlap the pressurizing area.
- the heating unit 14 heats the central region of the composite material 20 by facing the central region of the lower surface 20b of the composite material 20 in the Z direction in synchronization with the pressure region in the first step S12. It is preferable to do. That is, in the first step S14, it is preferable to set the heating area to the central area of the composite material 20.
- the control unit 18 determines whether or not all the regions intended to be pressurized and heated in the composite material 20 have been pressurized and heated (step S16). If the composite material molding apparatus 10 determines that the control unit 18 does not press and heat all the regions scheduled to be pressurized and heated in the composite material 20 (No in step S16), the process proceeds to step S18. Advance.
- the moving mechanism 16 synchronously changes the relative position of the first member 22 with respect to the composite material 20 and the relative position of the heating unit 14 with respect to the composite material 20 based on the control of the control unit 18.
- the pressure area and the heating area are moved synchronously (step S18). Specifically, the moving mechanism 16 moves the pressure area by moving the first member 22 relative to the composite material 20 via the pressure cylinder 26.
- the moving mechanism 16 moves the heating area by moving the heating unit 14 with respect to the composite material 20.
- the moving mechanism 16 moves the pressure area and the heating area to the area determined by the control unit 18 not to be pressurized and heated.
- the composite material forming apparatus 10 performs the processing of step S12 and step S14 in the pressure area and the heating area moved in step S18.
- the composite material forming apparatus 10 repeats step S18, step S12 and step S14 until the control unit 18 determines that all the regions scheduled to be pressurized and heated in the composite material 20 have been pressurized and heated.
- the control unit 18 determines that all the regions scheduled to be pressurized and heated in the composite material 20 have been pressurized and heated in the composite material forming apparatus 10 (Yes in step S16), the processing is ended.
- the composite material forming apparatus 10 and the composite material forming method using the composite material forming apparatus 10 can heat the composite material 20 while pressing it, and therefore, are generated inside the thermosetting resin by pressing.
- the gas can be suitably removed, and the composite material 20 can be efficiently formed in a state where the gas is removed by heating.
- the composite material forming apparatus 10 and the composite material forming method by the composite material forming apparatus 10 can press and heat the composite material 20 in the atmosphere, so that in the process of manufacturing the composite material 20, the composite is formed using an autoclave. Since it is not necessary to go through the preparation steps such as the lamination step, the debulk step and the bagging step, which are essential when manufacturing the material 20, the composite material can be formed efficiently. Therefore, the composite material forming apparatus 10 and the composite material forming method using the composite material forming apparatus 10 can significantly reduce the labor and cost involved in forming the composite material 20.
- the composite material forming apparatus 10 and the composite material forming method by the composite material forming apparatus 10 move the pressing area and the heating area from the central area to the outer peripheral area of the composite material 20 by the moving mechanism 16. Therefore, in the composite material molding apparatus 10 and the composite material molding method by the composite material molding apparatus 10, the gas generated inside the thermosetting resin contained in the composite material 20 is a thermosetting resin of the softened state of the composite material 20. It can be removed as it travels internally and is pushed from the central area of the composite 20 to the peripheral area. That is, the composite material forming apparatus 10 and the composite material forming method by the composite material forming apparatus 10 can more suitably remove the gas generated inside the thermosetting resin.
- the composite material forming method using the composite material forming apparatus 10 and the composite material forming apparatus 10 moves the first member 22 of the pressing unit 12 and the heating unit 14 with respect to the composite material 20 by the moving mechanism 16.
- the pressure area and the heating area are moved. Therefore, according to the composite material forming apparatus 10 and the composite material forming method by the composite material forming apparatus 10, the moving path of the pressure area and the heating area can be easily set according to the size and the shape of the composite material 20. Therefore, according to the composite material forming apparatus 10 and the composite material forming method by the composite material forming apparatus 10, the composite material is suitably removed while the gas generated inside the thermosetting resin is suitably removed according to the size and the shape of the composite material 20. 20 can be formed efficiently.
- the composite material forming apparatus 10 and the composite material forming method by the composite material forming apparatus 10 move the pressing area and the heating area based on the control of the control unit 18, the moving mechanism 16 is not limited thereto. .
- the composite material forming apparatus 10 and the composite material forming method by the composite material forming apparatus 10 may move the pressing area and the heating area by manually controlling the moving mechanism 16.
- the pressing region is moved by moving the first member 22 of the pressing unit 12 by the moving mechanism 16; It is not limited to.
- the composite material forming apparatus 10 and the composite material forming method by the composite material forming apparatus 10 are configured such that the moving mechanism 16 moves the second member 24 according to the size, the shape, and the position of the first member 22 and the second member 24.
- the pressing area may be moved by moving the first member and the second member may be moved by moving the first member and the second member.
- the heating unit 14 applies a high frequency magnetic field of 900 kHz or more to the composite material 20. Therefore, the composite material forming method using the composite material forming apparatus 10 and the composite material forming apparatus 10 can efficiently heat the composite material 20.
- the first member 22 and the second member 24 include at least one of a polyetheretherketone resin and a ceramic. Therefore, in the composite material forming apparatus 10 and the composite material forming method by the composite material forming apparatus 10, the composite material 20 is sandwiched and pressurized by the first member 22 and the second member 24 having high transparency to a magnetic field, high pressure resistance, and heat resistance. Therefore, the magnetic field can be efficiently applied to the composite material 20 while suitably removing the gas generated inside the thermosetting resin.
- molding apparatus 10 include the pressurization cylinder 26 in the pressurization part 12, it is not limited to this.
- the pressing unit 12 may press the composite material 20 by the weight of the first member 22 without including the pressing cylinder 26.
- FIG. 7 is a schematic block diagram of a composite material molding apparatus 30 according to a second embodiment of the present invention.
- the pressing unit 12 of the composite material forming apparatus 30 is changed to the pressing unit 32, and the moving mechanism 16 is changed to the moving mechanism 36.
- the composite material forming apparatus 30 uses the same code group as that of the first embodiment for the same configuration as that of the first embodiment, and the detailed description thereof will be omitted.
- the pressure unit 32 is a unit in which the second member 24 is changed to a second member 34.
- the second member 34 basically has the same configuration and properties as the second member 24, but does not extend in the direction along the horizontal surface than the composite material 40, and is a composite processed by the composite material forming device 30. The point of contacting only a part of the lower surface 40 b of the material 40 differs from the second member 24.
- the second member 34 has a flat surface 34 a in the + Z direction. The second member 34 contacts a portion of the lower surface 40 b of the composite material 40 at the flat surface 34 a to support a portion of the composite material 40 in the + Z direction.
- the first member 22 contacts a predetermined area of the upper surface 40 a of the composite material 40 at the flat surface 22 a and applies a pressure in the ⁇ Z direction to the predetermined area of the composite material 40.
- the pressing unit 32 presses a predetermined area of the composite material 40 between the flat surface 22 a of the first member 22 and the flat surface 34 a of the second member 34.
- the pressing unit 32 presses a region of the upper surface 40 a of the composite material 40 in contact with the flat surface 22 a.
- the area in the direction along the horizontal plane of the pressurizing area which is the area to which the pressurizing unit 32 applies pressure is a degree of the area of the plane 22 a.
- the first member 22 and the pressurizing cylinder 26 included in the pressurizing unit 32 are included in the pressurizing unit 12 connected to the moving mechanism 16 in the first embodiment in that the first member 22 and the pressurizing cylinder 26 are not connected to the moving mechanism 36.
- the first member 22 and the pressure cylinder 26 are different.
- the first member 22, the pressure cylinder 26 and the second member 34 included in the pressure unit 32 are all fixed and installed.
- the pressing unit 32 presses a predetermined area of the composite material 40 between the flat surface 22 a of the first member 22 and the flat surface 34 a of the second member 34.
- the heating unit 14 is different from the heating unit 14 connected to the moving mechanism 16 in the first embodiment in that the heating unit 14 is not connected to the moving mechanism 36.
- the heating unit 14 is fixed and installed.
- the first member 22 and the second member 34 of the pressing unit 32 and the heating unit 14 are disposed to face each other in the Z direction.
- the moving mechanism 36 supports the end 40 e of the composite material 40.
- the moving mechanism 36 moves the composite material 40 along the direction of the horizontal plane. That is, the moving mechanism 36 moves the composite material 40 with respect to the first member 22 and the second member 34 included in the pressing unit 32 and the heating unit 14. Thereby, the moving mechanism 36 synchronously changes the relative position of the first member 22 and the second member 34 with respect to the composite material 40 and the relative position of the heating unit 14 with respect to the composite material 40.
- the moving mechanism 36 changes the pressure area and the heating area synchronously by moving the composite material 40 in this manner.
- the moving mechanism 36 changes the pressure area and the heating area in the same path as the moving mechanism 16 based on the control of the control unit 18.
- the composite material forming apparatus 30 processes the composite material 40 from a softened state or a semi-cured state to a cured state while forming the composite material 40 into a predetermined size and a predetermined shape, instead of the composite material 20.
- the composite material 40 basically has the same configuration and properties as the composite material 20 but differs from the composite material 20 in that it has an end 40 e supported by the moving mechanism 36.
- the end 40 e is a portion that is not pressed and heated by the composite material molding device 30.
- the processing method performed by the composite material forming apparatus 30 is a processing method performed by the composite material forming apparatus 10, with the moving step S18 partially modified.
- the moving mechanism 36 moves the composite material 40 with respect to the first member 22 and the second member 34 based on the control of the control unit 18 to thereby apply a pressure area. Move it.
- the moving mechanism 36 moves the heating area by moving the composite material 40 relative to the heating unit 14.
- the moving step according to the second embodiment is the same as the moving step S18 according to the first embodiment in the other points.
- the composite material forming apparatus 30 and the composite material forming method using the composite material forming apparatus 30 can heat the composite material 40 while pressing the composite material 40 without moving the pressing unit 32 and the heating unit 14. Therefore, according to the size and shape of the composite material 40, the gas generated inside the thermosetting resin can be suitably removed by pressurization, and the composite material 40 can be made efficient in a state where the gas is removed by heating. It can be molded well.
- the composite material forming apparatus 30 and the composite material forming method according to the composite material forming apparatus 30 have the composite material 40 even if the second member 34 is smaller than the composite material 40 in the horizontal direction, particularly when the composite material 40 is large. It is preferable because it can be molded.
- FIG. 8 is a schematic block diagram of a composite material molding apparatus 50 according to a third embodiment of the present invention.
- the composite material forming apparatus 50 is the composite material forming apparatus 10 in which the pressure unit 12 is changed to a pressure unit 52.
- the composite material forming apparatus 50 uses the same code group as that of the first embodiment for the same configuration as that of the first embodiment, and the detailed description thereof will be omitted.
- the pressure unit 52 is a unit in which the first member 22 is changed to a first member 54.
- the first member 54 is connected to the moving mechanism 16 via the pressure cylinder 26, and moves with the pressure cylinder 26 by the drive of the movement mechanism 16.
- the moving mechanism of the first member 54 is the same as the moving mechanism of the first member 22.
- the first member 54 has a flat portion 54a in contact with the upper surface 20a of the composite material 20 and a taper 54b spaced from the upper surface 20a of the composite material 20 in the direction opposite to the upper surface 20a of the composite material 20, ie, in the -Z direction. And.
- FIG. 9 is a view of the first member 54 in the composite material molding apparatus 50 according to the third embodiment of the present invention as viewed from the composite material 20 side.
- the flat portion 54a is provided in the central region of the surface of the first member 54 in the -Z direction, as shown in FIG.
- the taper 54 b is provided from the central region to the outer peripheral region of the surface of the first member 54 in the ⁇ Z direction.
- the pressing unit 52 presses a predetermined region of the composite material 20 between the flat portion 54 a of the first member 54 and the flat surface 24 a of the second member 24.
- the pressing unit 52 presses a region of the upper surface 20 a of the composite material 20 in contact with the flat portion 54 a.
- the area in the direction along the horizontal surface of the pressure area is the extent of the area of the flat part 54a.
- the composite material forming apparatus 50 and the composite material forming method by the composite material forming apparatus 50 have the taper 54 b, the flat portion 54 a contacts with the flat area 54a of the composite material 20 pressed and pressed by the taper 54 b.
- a pressure gradient can be applied.
- the composite material forming apparatus 50 and the composite material forming method by the composite material forming apparatus 50 utilize the pressure gradient applied by the taper 54 b to generate the gas generated inside the thermosetting resin from the central region to the outer peripheral region Can be removed more suitably.
- the first member 54 has the taper 54 b from the central region to the outer peripheral region of the surface facing the composite material 20
- the second member 24 has the same taper.
- both the first member 54 and the second member 24 may have similar tapers.
- FIG. 10 is a schematic block diagram of a composite material molding apparatus 60 according to a fourth embodiment of the present invention.
- the composite material forming apparatus 60 is the composite material forming apparatus 10 in which the pressing unit 12 is changed to a pressing unit 62.
- the composite material forming apparatus 60 uses the same code group as that of the first embodiment for the same configuration as that of the first embodiment, and the detailed description thereof will be omitted.
- the pressurizing unit 62 is a unit in which the first member 22 is changed to a first member 64.
- the first member 64 is connected to the moving mechanism 16 via the pressure cylinder 26, and moves with the pressure cylinder 26 by the driving of the movement mechanism 16.
- the moving mechanism of the first member 64 is the same as the moving mechanism of the first member 22.
- the first member 64 is in a direction opposite to the upper surface 20a of the composite material 20, ie, a contact portion 64a in contact with the upper surface 20a of the composite material 20 in a direction opposite to the -Z direction. And a portion 64b.
- FIG. 11 is a view of the first member 64 in the composite material molding apparatus 60 according to the fourth embodiment of the present invention as viewed from the composite material 20 side.
- the contact portion 64a is provided in the central region of the surface of the first member 64 in the -Z direction, as shown in FIG.
- the non-contact portion 64 b is provided from the central region to the outer peripheral region of the surface of the first member 64 in the ⁇ Z direction.
- the surface in the -Z direction of the first member 64 is a surface in which the contact portion 64a and the non-contact portion 64b are connected gently, and the entire surface has a taper from the central region to the outer peripheral region.
- the surface of the first member 64 in the -Z direction is exemplified by a spherical surface and an elliptical spherical surface.
- the pressing unit 62 presses a predetermined area of the composite material 20 between the contact portion 64 a of the first member 64 and the flat surface 24 a of the second member 24.
- the pressing unit 52 presses a region of the upper surface 20 a of the composite material 20 in contact with the contact unit 64 a. In the pressure part 52, the area in the direction along the horizontal surface of the pressure area is the extent of the area of the contact part 64a.
- the composite material forming apparatus 60 and the composite material forming method using the composite material forming apparatus 60 have the contact portion 64 a and the non-contact portion 64 b and have a taper from the central region to the outer peripheral region. In the vicinity of the pressure area of the pressed composite material 20, a pressure gradient can be applied at the non-contact portion 64b.
- the composite material forming method by the composite material forming apparatus 60 and the composite material forming apparatus 60 utilizes the pressure gradient applied at the non-contacting part 64b to generate the gas generated inside the thermosetting resin from the central region It can be more suitably removed to the outer peripheral area.
- first member 64 has a taper from the central region to the outer peripheral region of the surface facing the composite material 20, even if the second member 24 has a similar taper
- both the first member 64 and the second member 24 may have similar tapers.
- FIG. 12 is a schematic block diagram of a composite material molding apparatus 70 according to a fifth embodiment of the present invention.
- FIG. 13 is a schematic configuration view showing an example of the case where the pressure area and the heating area are moved in the composite material molding apparatus 70 according to the fifth embodiment of the present invention.
- the pressing unit 12 is changed to a pressing unit 72
- the moving mechanism 16 is changed to a moving mechanism 76.
- the composite material forming apparatus 70 uses the same code group as that of the first embodiment for the same configuration as that of the first embodiment, and the detailed description thereof will be omitted.
- the composite material forming apparatus 70 processes the composite material 80 from a softened state or a semi-hardened state to a hardened state while forming the composite material 80 into a predetermined size and a predetermined shape, instead of the composite material 20.
- Composite material 80 has the same configuration and properties as composite material 20, but has a top surface 80a that is a curved surface that is concave in the + Z direction, that is, a bottom surface 80b that is a curved surface that is a convex in the -Z direction. It differs from the composite material 20 in that
- the pressing unit 72 is a pressing unit 12 in which the first member 22 is changed to a first member 64, and the second member 24 is changed to a second member 74.
- the first member 64 in the pressing unit 72 is the same as the first member 64 in the pressing unit 62, and thus the detailed description thereof is omitted.
- the second member 74 is fixed and installed.
- the second member 74 has a curved surface 74 a that is concave upward in the + Z direction.
- the pressing unit 72 presses a predetermined region of the composite material 80.
- the first member 64 contacts a predetermined region of the upper surface 80 a of the composite material 80 at the contact portion 64 a and applies a pressure in a direction orthogonal to the upper surface 80 a of the composite material 80 to the predetermined region of the composite material 80.
- the second member 74 is in contact with the entire surface of the lower surface 80b of the composite material 80 by the curved surface 74a, and supports the composite material 80 in the direction orthogonal to each region in each region. As described above, the pressing unit 72 presses the predetermined area of the composite material 80 between the contact portion 64 a of the first member 64 and the curved surface 74 a of the second member 74.
- the pressurizing unit 72 applies a pressure to sandwich the predetermined region of the composite material 80 between the contact portion 64a of the first member 64 and the curved surface 74a of the second member 74. Form 80 into a curved plate shape.
- the pressing unit 72 presses a region of the upper surface 80 a of the composite material 80 in contact with the contact unit 64 a.
- the area of the pressure area which is the area to which the pressure part 72 applies pressure, is the extent of the area of the contact part 64a.
- the moving mechanism 76 is connected to the side opposite to the side on which the first member 64 is provided in the pressure cylinder 26 of the pressure unit 72.
- the moving mechanism 76 is connected to the side opposite to the side facing the composite material 80 in the heating unit 14.
- the moving mechanism 76 is electrically connected to the control unit 18.
- the movement mechanism 76 is exemplified by a robot arm, but is not limited to this, and a known driving device that grips movably in three dimensions is applied.
- the moving mechanism 76 moves the first member 64 along the upper surface 80 a of the composite material 80 via the pressure cylinder 26 under the control of the control unit 18 as shown in FIG. 13. Thereby, the moving mechanism 76 changes the relative position of the first member 64 with respect to the composite material 80.
- the moving mechanism 76 moves the pressing area by changing the relative position of the first member 64 to the composite material 80.
- the moving mechanism 76 moves the heating unit 14 along the lower surface 80 b of the composite material 80 under the control of the control unit 18 as shown in FIG. 13. Thereby, the moving mechanism 76 changes the relative position of the heating unit 14 with respect to the composite material 80.
- the moving mechanism 76 moves the heating area by changing the relative position of the heating unit 14 with respect to the composite material 80.
- the movement mechanism 76 synchronously changes the relative position of the first member 64 with respect to the composite material 80 and the relative position of the heating unit 14 with respect to the composite material 80 under the control of the control unit 18.
- the moving mechanism 76 synchronously changes the relative position of the first member 64 with respect to the composite material 80 and the relative position of the heating unit 14 with respect to the composite material 20, thereby making the pressure area and the heating area Move in sync.
- the processing method performed by the composite material forming apparatus 70 is a processing method performed by the composite material forming apparatus 10, in which the moving step S18 is partially changed.
- the moving mechanism 76 moves the pressing region by moving the first member 64 along the upper surface 80 a of the composite material 80 based on the control of the control unit 18. .
- the moving mechanism 76 moves the heating area by moving the heating unit 14 along the lower surface 80 b of the composite material 80 under the control of the control unit 18.
- the moving step according to the fifth embodiment is the same as the moving step S18 according to the first embodiment in the other points.
- the composite material forming apparatus 70 and the composite material forming method using the composite material forming apparatus 70 form the composite material 80 having the upper surface 80a having a concave curved surface and the lower surface 80b having a convex curved surface.
- the moving mechanism 76 can move the pressure area and the heating area synchronously according to the shape of the composite material 80. Therefore, according to the composite material forming apparatus 70 and the composite material forming method using the composite material forming apparatus 70, the gas generated inside the thermosetting resin by pressing is suitably removed according to the size and the shape of the composite material 80. As a result, the composite material 80 can be efficiently formed in a state where the gas has been removed by heating.
- the composite material forming apparatus 70 and the composite material forming method using the composite material forming apparatus 70 form a composite material having a more complicated shape than the composite material 80 by changing the shapes of the first member 64 and the second member 74. It is also possible.
- the moving mechanism 76 moves the first member 64 and the heating unit 14 in synchronization with each other with respect to the composite material 80. It is not limited to The composite material forming apparatus 70 and the composite material forming method by the composite material forming apparatus 70 may move the composite material 80 and the second member 74 synchronously with respect to the first member 64 and the heating unit 14.
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Abstract
Description
図1は、本発明の第1の実施形態に係る複合材料成形装置10の概略構成図である。図1に示す複合材料成形装置10は、加圧部12と、加熱部14と、移動機構16と、制御部18と、を有する。複合材料成形装置10は、強化繊維に熱硬化性樹脂を含浸させた複合材料20を、所定の大きさ及び所定の形状に成形しつつ、軟化状態または半硬化状態から硬化状態に加工する。
図7は、本発明の第2の実施形態に係る複合材料成形装置30の概略構成図である。複合材料成形装置30は、複合材料成形装置10において、加圧部12が加圧部32に変更され、移動機構16が移動機構36に変更されたものである。複合材料成形装置30は、第1の実施形態と同様の構成に第1の実施形態と同一の符号群を用い、その詳細な説明を省略する。
図8は、本発明の第3の実施形態に係る複合材料成形装置50の概略構成図である。複合材料成形装置50は、複合材料成形装置10において、加圧部12が加圧部52に変更されたものである。複合材料成形装置50は、第1の実施形態と同様の構成に第1の実施形態と同一の符号群を用い、その詳細な説明を省略する。
図10は、本発明の第4の実施形態に係る複合材料成形装置60の概略構成図である。複合材料成形装置60は、複合材料成形装置10において、加圧部12が加圧部62に変更されたものである。複合材料成形装置60は、第1の実施形態と同様の構成に第1の実施形態と同一の符号群を用い、その詳細な説明を省略する。
図12は、本発明の第5の実施形態に係る複合材料成形装置70の概略構成図である。図13は、本発明の第5の実施形態に係る複合材料成形装置70において、加圧領域及び加熱領域を移動させた場合の一例を示す概略構成図である。複合材料成形装置70は、複合材料成形装置10において、加圧部12が加圧部72に変更され、移動機構16が移動機構76に変更されたものである。複合材料成形装置70は、第1の実施形態と同様の構成に第1の実施形態と同一の符号群を用い、その詳細な説明を省略する。
12,32,52,62,72 加圧部
14 加熱部
16,36,76 移動機構
18 制御部
20,40,80 複合材料
20a,40a,80a 上面
20b,40b,80b 下面
22,54,64 第1部材
22a,24a,34a 平面
24,34,74 第2部材
26 加圧シリンダ
28a,28b 移動経路
40e 端部
54a 平坦部
54b テーパ
64a 接触部
64b 非接触部
74a 曲面
d 距離
H 加熱中心領域
M 磁力線
R 直径
tf 加熱終了時刻
ts 加熱開始時刻
Claims (16)
- 磁場に対して透明な第1部材及び第2部材を含み、前記第1部材と前記第2部材との間に、強化繊維に熱硬化性樹脂を含浸させた複合材料の所定の領域を挟んで加圧する加圧部と、
前記加圧部で加圧された前記複合材料の前記所定の領域に磁場を印加して、前記複合材料の前記所定の領域を加熱する加熱部と、
を有することを特徴とする複合材料成形装置。 - 前記複合材料に対する前記第1部材または前記第2部材の相対的な位置と、前記複合材料に対する前記加熱部の相対的な位置と、を同期して変化させることで、前記加圧部が加圧する加圧領域及び前記加熱部が加熱する加熱領域を、前記複合材料において同期して移動させる移動機構をさらに有することを特徴とする請求項1に記載の複合材料成形装置。
- 前記移動機構は、前記加圧領域及び前記加熱領域を、前記複合材料における中央領域から外周領域へ移動させることを特徴とする請求項2に記載の複合材料成形装置。
- 前記移動機構は、前記複合材料に対して、前記第1部材または前記第2部材と、前記加熱部と、を移動させることを特徴とする請求項2または請求項3に記載の複合材料成形装置。
- 前記移動機構は、前記第1部材または前記第2部材と、前記加熱部と、に対して、前記複合材料を移動させることを特徴とする請求項2または請求項3に記載の複合材料成形装置。
- 前記第1部材または前記第2部材は、前記複合材料と対向する面の中央領域から外周領域にかけてテーパを有することを特徴とする請求項1から請求項5のいずれか1項に記載の複合材料成形装置。
- 前記加熱部は、900kHz以上の高周波磁場を印加することを特徴とする請求項1から請求項6のいずれか1項に記載の複合材料成形装置。
- 前記第1部材及び前記第2部材は、ポリエーテルエーテルケトン樹脂及びセラミックスの少なくとも一方を含むことを特徴とする請求項1から請求項7のいずれか1項に記載の複合材料成形装置。
- 磁場に対して透明な第1部材と第2部材との間に、強化繊維に熱硬化性樹脂を含浸させた複合材料の所定の領域を挟んで加圧する加圧ステップと、
前記加圧ステップで加圧した前記複合材料の前記所定の領域に磁場を印加して、前記複合材料の前記所定の領域を加熱する加熱ステップと、
を有することを特徴とする複合材料成形方法。 - 前記加圧ステップで加圧する加圧領域及び前記加熱ステップで加熱する加熱領域を、前記複合材料において同期して移動させる移動ステップをさらに有することを特徴とする請求項9に記載の複合材料成形方法。
- 前記移動ステップでは、前記加圧領域及び前記加熱領域を、前記複合材料の中央領域から外周領域へ移動させることを特徴とする請求項10に記載の複合材料成形方法。
- 前記移動ステップでは、前記複合材料に対して、前記第1部材または前記第2部材と、前記複合材料に磁場を印加する加熱部と、を移動させることを特徴とする請求項10または請求項11に記載の複合材料成形方法。
- 前記移動ステップでは、前記第1部材または前記第2部材と、前記複合材料に磁場を印加する加熱部と、に対して、前記複合材料を移動させることを特徴とする請求項10または請求項11に記載の複合材料成形方法。
- 前記第1部材または前記第2部材は、前記複合材料と対向する面の中央領域から外周領域にかけてテーパを有することを特徴とする請求項9から請求項13のいずれか1項に記載の複合材料成形方法。
- 前記加熱ステップでは、前記複合材料の前記所定の領域に900kHz以上の高周波磁場を印加することを特徴とする請求項9から請求項14のいずれか1項に記載の複合材料成形方法。
- 前記第1部材及び前記第2部材は、ポリエーテルエーテルケトン樹脂及びセラミックスの少なくとも一方を含むことを特徴とする請求項9から請求項15のいずれか1項に記載の複合材料成形方法。
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WO2020158416A1 (ja) * | 2019-01-29 | 2020-08-06 | 三菱重工業株式会社 | 複合材料成形方法 |
TWI843424B (zh) * | 2022-04-18 | 2024-05-21 | 日商黑崎播磨股份有限公司 | 靜電吸盤用供電部及靜電吸盤 |
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US20210039339A1 (en) * | 2018-01-31 | 2021-02-11 | Mitsubishi Heavy Industries, Ltd. | Method for molding composite material, composite material, pressing head, and device for molding composite material |
JP7341408B2 (ja) * | 2019-06-04 | 2023-09-11 | 三菱重工業株式会社 | 磁場加熱成形システム及び磁場加熱成形方法 |
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