Honda Motor Co., Ltd.

Haruka Ito

Fumitomo Takano

Daisuke Yamamoto

Shunichi Yorozuya

Yui Miyazaki

Mai Yokoi

Tatsuya Okunaka

Susumu Horinaka

Yasuki Okanemasa

Ayato Ueha

In a three-dimensional shaping method and a three-dimensional shaping apparatus, a shaping path of each of a plurality of layers includes an inner shaping path and outer shaping path for shaping an inner wall portion and outer wall portion that surround a space and are adjacent in an inward-outward direction. The progression directions of the inner shaping path and outer shaping path are the same direction.

Three-dimensional shaping method and three-dimensional shaping apparatus

In a three dimensional shaping method and a three dimensional shaping apparatus, when a three dimensional object is obtained by laminating a resin material having thermoplasticity, the resin material is melted, and the melted resin material is laminated in a chamber to form resin layers. Next, the pressure in the chamber is adjusted to maintain the temperature of each of the resin layers within a predetermined temperature range in the chamber.

Three dimensional shaping method and three dimensional shaping apparatus

A resin material plasticizing device is equipped with a heating block in which a passage hole is formed to which there is supplied an elongate solid coating material, and which is capable of raising the temperature of an inner wall surface of the passage hole. At an upstream portion of the passage hole, so that an inner wall surface thereof is kept in contact with a side surface of the solid coating material, a cross section thereof which is perpendicular to an axial direction has a shape corresponding to the cross-sectional shape of the solid coating material. At least a part of the midstream portion is set in a manner so that a ratio of a circumferential length with respect to a cross-sectional area of a cross section perpendicular to the axial direction is greater than the same ratio of the upstream portion.

Resin material plasticizing device and resin material plasticizing method

A three-dimensional printing method includes a filament forming step, and a laminating step in order to laminate filaments possessing thermoplasticity and thereby obtain a three-dimensional modeled object. In the filament forming step, a coating material made of a thermoplastic resin, which is plasticized by heating, is adhered to at least a part of an outer circumferential surface of a core material, which is made of a thermoplastic resin having a lower temperature than that of the plasticized coating material, thereby obtaining the filaments. In the laminating step, the filaments, which are made up from the plasticized coating material, and the core material that is plastically deformable but at a lower temperature than the plasticized coating material, are laminated while being pressed with respect to a portion to be laminated.

Three-dimensional printing method, three-dimensional printing apparatus, and three-dimensional modeled object

A resin material heating device configured to heat an elongate solid resin material includes a passage conduit and a hot air supply device. An inner diameter of the passage conduit is greater than a diameter of the resin material, and allows the resin material to pass therethrough in a state of being separated from the inner wall surface of the passage conduit. The hot air supply device supplies hot air to the interior of the passage conduit.

Resin material heating device and resin material heating method

In a molding machine, an electrical current is caused to flow to a coil by a high-frequency power supply, and a magnetic field is generated, whereupon lines of magnetic force are generated so as to substantially conform to cavity faces of the stationary mold and the moveable mold. The magnetic field strength is constant with respect to position in the lengthwise direction of the coil, and eddy currents are generated uniformly with respect to the cavity faces. Because the molds have electrical resistance, Joule heat is generated by the eddy currents and electrical resistance, and the cavity faces are heated. When a material in a molten state is injected into the cavities of the heated molds, flowability of the material is promoted, and therefore the quality of the molded article is improved.

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Tochigi-ken, Japan

Haruka Ito