Mitsubishi Heavy Industries Limited

Toray Industries, Inc.

Kodai Shimono

Takeshi Fujita

Hiroshi Tokutomi

Kenji Ito

Masahiko Shimizu

Koichi Hasegawa

Ryoji Okabe

Tomohiro Numajiri

Kentaro Shindo

Takuma Hirai

Yoshihiro Fujioka

Shoya Mano

Homare Yamato

Masakazu Kamibayashi

Makoto Inomoto

Haruhiko Hirano

Ikuo Honda

Shunsuke Yoshino

Kensuke Kokumai

Jo Nishimuro

Yusuke Yamagishi

A fiber-reinforced composite material molding apparatus includes a molding die, a bagging film that seals a fiber base material in the molding die to form a hermetically sealed space, an intake line that depressurizes the hermetically sealed space, and a resin injection line that injects a resin material into the fiber base material. The molding die includes a main body portion including a main groove that extends along a longitudinal direction and is connected to the resin injection line, lateral grooves that are formed at a plurality of positions in the longitudinal direction and extend along a width direction, and a step portion that extends along the longitudinal direction and is disposed between the main groove and the lateral grooves, and a lid portion that extends along the longitudinal direction, is disposed being in contact with the step portion to cover the main groove, and forms a part of a molding surface. The main body portion includes a communication groove through which the main groove is communicated with the lateral grooves.

Fiber-reinforced composite material molding apparatus and fiber-reinforced composite material molding method

A method for molding a laminated body includes laminating a reinforced fiber base material on a molding surface of a molding jig to form a laminated body; attaching a pulling jig to a third lamination portion of the laminated body; forming a protrusive curvature part and a recessed curvature part in the laminated body by curving the laminated body along a protrusive curvature surface and a recessed curvature surface formed on the molding surface while pulling the end of the laminated body with the pulling jig; and densifying the laminated body by heating the curved laminated body while pressurizing the same. The reinforced fiber base material is laminated so that at least a part of a gap between layers of the reinforced fiber base material becomes a non-adhered state in a portion from the protrusive curvature part to the third lamination portion formed in the laminated body.

Molding method and molding jig for laminated body

A method for producing a composite material in which a first fabric and a second fabric made from a fiber material are impregnated with a thermosetting resin and integrally molded, wherein a resin flow path through which thermosetting resin flows is provided between the first fabric and the second fabric, and the first fabric and the second fabric are impregnated with thermosetting resin from the resin flow path as well as being impregnated with thermosetting resin from the surface.

Method for producing composite material, fiber base material, and shaping mold for fiber base material

A composite material molding jig for molding a long member made of a fiber base material and a resin on a plate member includes: a first member that is made of a material having a thermal expansion coefficient equivalent to a thermal expansion coefficient of the long member, internally includes a space serving as a mold of the long member, and has an outer surface formed flat in a longitudinal direction; and a second member that is made of a material lighter than the material of the first member, internally includes a space shaped to contain the first member, and has an inner surface formed flat in the longitudinal direction, wherein the fiber base material is placed in the space inside the first member, and the first member is placed in the space inside the second member for molding the long member.

Composite material molding jig and composite material, molding method

A method for molding a composite material obtained by laying up a fiber-reinforced base material includes: disposing a lay-up in which the fiber-reinforced base material is laid up, on a molding surface of a molding jig; covering the lay-up with a film to hermetically seal the lay-up; supplying resin toward the lay-up from a resin supplying unit; sucking atmosphere in the film from a degassing waterproof unit while blocking the resin in the film from passing to impregnate the lay-up with the resin; and discharging the resin in the film from a resin discharging unit after the lay-up is impregnated with the resin. The resin supplying unit is provided on the film side. The degassing waterproof unit is provided on the molding surface side and along one direction in a plane perpendicular to a laying-up direction of the lay-up. The resin discharging unit is provided at the film side.

Composite material molding method and composite material molding device

An object is to provide a device and method for manufacturing a fiber-reinforced plastic molded article, whereby two members can be accurately positioned with respect to each other upon integral molding of the members via a VaRTM method. A device for manufacturing a fiber-reinforced plastic molded article includes a skin mold in which a skin, which is a cured fiber-reinforced composite member, is mounted; a stringer mold that is configured to accommodate a stringer, which is a fabric to be joined to the skin; and a folded plate that is configured to accommodate the stringer mold and includes a positioning portion for positioning with respect to a positioning portion provided on the skin.

Device for manufacturing fiber-reinforced plastic molded article

A repair patch is for a composite material to repair a part to be repaired which is a repair target of the composite material. The patch includes a patch main body that is formed by laminating a plurality of fiber reinforced preforms in a thickness direction, and has a bonding surface to be bonded to the part to be repaired; and a removal layer that is provided on the bonding surface to be peelable off from the patch main body. The bonding surface includes an inclined surface that is inclined with respect to the thickness direction of the patch main body. The removal layer includes a processed portion that causes the removal layer to have a shape complementary to a shape of the inclined surface of the patch main body.

Repair patch, method for molding repair patch, and method for repairing composite material

A repair patch includes a composite material to repair a a repair target of a composite material. The repair patch includes bonding surfaces which face a bonded surface of a counterbored hole formed in the part to be repaired, and are bonded to the counterbored hole; and an opposite surface opposite to the bonding surfaces in a thickness direction. The opposite surface has a curved plane with a first surface side curvature radius protruding toward the opposite surface in a cross section cut along a plane intersecting an axial direction in the opposite surface. The bonded surface has a curved plane with a second surface side curvature radius protruding toward the bonding surfaces facing the bonded surface in a cross section cut along a plane intersecting an axial direction in the bonded surface. The first surface side curvature radius is smaller than the second surface side curvature radius.

Repair patch, method for molding repair patch, method for repairing composite material, and molding jig

A forming method of a cylindrical composite material includes layering a plurality of composite material sheets in a cylindrical shape with splices formed between ends of adjacent composite material sheets such that phases of the splices in a circumferential direction differ from each other; heating the composite material sheets layered at the layering while pressurizing the composite material sheets in a state where the layered composite material sheets are disposed along an inner surface of a composite material cylindrical mold to cause a resin included in the composite material sheets to react to combine the composite material sheets to be formed in a cylindrical shape; and performing an adhesion pretreatment that is performed before the heating and allows the inner surface of the composite material cylindrical mold to adhere to an outermost composite material sheet of the layered composite material sheets.

Forming method of cylindrical composite material, inner surface layering device, and cylindrical composite material

A method for molding composite material such as a spar formed with a curved corner part is provided with: a first shaping step of shaping a laminate so that the board thickness of the laminate is reduced from the outside of the corner part toward the inside thereof, the laminate having the corner part curved at a first bending angle and comprising fiber sheets laminated to each other; and a second shaping step of curving the corner part of the laminate to form a second bending angle smaller than the first bending angle, and shaping the laminate so that the board thickness of the laminate is reduced from the inside of the corner part toward the outside thereof.

Method for molding composite material, jig for molding composite material, and composite material

A motor includes a rotation shaft, a magnet unit fixed to the rotation shaft to rotates with the rotation shaft, and a coil unit arranged to face the magnet unit in an axial direction. The magnet unit includes a magnet ring in which magnets are arranged in a circumferential direction of the rotation shaft, and a holding ring provided at an outer peripheral side of the magnet ring to hold the magnet ring. The holding ring includes a composite material in which a carbon fiber is impregnated with resin. The carbon fiber includes a pitch-based carbon fiber and a PAN-based carbon fiber. A volume ratio of the pitch-based carbon fiber is larger than that of the PAN-based carbon fiber in a portion at an outer peripheral side; a volume ratio of the PAN-based carbon fiber is larger than that of the pitch-based carbon fiber in a portion at an inner peripheral side.

Motor

A method of molding composite materials including shaping a laminate having fiber sheets laminated over one another, by bending the laminate in an X-direction and a Y-direction, in a three-dimensional orthogonal coordinate system. The method further includes mounting the laminate that has been shaped, onto a mold material deformed in a Z-direction, impregnating a resin material into the laminate while adjusting an amount of the resin material filled in, and molding the composite materials that have cured such that the composite materials are shaped to have a first inclined surface inclined at a first inclination angle with respect to a reference plane in the Z-direction. The mold material has a first inclination molding surface that molds the first inclined surface, and a second inclination molding surface that molds a surface of the composite materials into a second inclined surface having a second inclination angle smaller than the first inclination angle.

Composite materials molding method, and composite materials

The present invention provides a composite material panel structure and a manufacturing method thereof with which an anti-lightning function can be realized without adding a separate anti-lightning structure to the composite material panel structure. In a composite material panel structure formed from a composite material panel containing reinforcing fibers, the composite material panel includes: a fiber-reinforced base material impregnated with a matrix resin; a conductive mesh sheet disposed on one surface side of the fiber-reinforced base material; and a bag film disposed on the one surface side of the fiber-reinforced base material so as to sandwich the conductive mesh sheet. The conductive mesh sheets of a plurality of the composite material panels are electrically connected to each other.

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Tokyo, Japan

Kodai Shimono