Honda Motor Co., Ltd.

Daisuke Yamamoto

Fumitomo Takano

Haruka Ito

Shunichi Yorozuya

Yui Miyazaki

Teruo Kamada

Takashi Tsuchiya

Kaoru Hirotani

Kenji Matsutani

Yoshimitsu Ishihara

Izuru Hori

Yuichi Nagai

Keishi Okunaka

Takayuki Kanou

Kouki Mizutani

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

A product including a top surface part, a vertical wall part connected to an end of the top surface part and a corner part interposed between the top surface part and the vertical wall part is manufactured by flowing a material of the corner part toward the top surface part while applying a pressing force on a workpiece.

Manufacturing method of press product and press forming apparatus

A side panel including a first member and a second member having a higher strength is manufactured by arranging a corner portion of the second member in a recessed portion of the first member, and by simultaneously press-working the first member and the second member.

Manufacturing method of side panel

A hot bulge forming die apparatus forms a preheated tubular materialinto a tubular material. The hot bulge forming die apparatus includes a lower dieB having a cavity surfaceB and an upper dieB having a cavity surfaceB. An elongated holeis formed in a circumferential edge portionof the lower dieB so as to extend outwards, and a projectionis formed on a circumferential edge portionof the upper dieB so as to fit in the elongated hole. When the dies are clamped together, the projectionformed on the circumferential edge portionof the upper dieB fits in the elongated holeformed in the circumferential edge portionof the lower dieB.

Hot bulge forming die apparatus

A bulging apparatus has a heating station, a tube expanding station, a preforming station, and a main forming station. A straight tube as a workpiece is gripped by first holding mechanisms or second holding mechanisms, and delivered between the stations as the first holding mechanisms or second holding mechanisms are displaced. During a preforming process and a main holding process, both the first holding mechanisms and second holding mechanisms can be lifted and lowered vertically and can be moved horizontally.

Growing community of inventors

Tochigi-ken, Japan

Daisuke Yamamoto