Abstract:
There is provided a mold including a movable side mold, a fixed side mold and a sprue bush, the sprue bush including a flow path for a cooling fluid of the fixed side mold, wherein inlet and outlet ports of the flow path for the cooling fluid are in a direct connection with a cooling tube, respectively, the cooling tube being located along a space portion provided in the fixed side mold, and wherein the space portion is in a form of an opening provided in at least one of opposed surfaces of the fixed side mold.
Abstract:
In order to provide a manufacturing method for a three-dimensional shaped object which is capable of obtaining a higher accurate three-dimensional shaped object, there is provided that a method for manufacturing a three-dimensional shaped object by alternate repetition of a powder-layer forming and a solidified-layer forming, the repetition comprising: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification of the powder; and (ii) forming another solidified layer by forming a new powder layer on the formed solidified layer, followed by irradiation of a predetermined portion of the newly formed powder layer with the light beam, further comprising performing a monitoring for an appearance property of an irradiated spot upon a formation of the solidified layer, the irradiated spot being irradiated with the light beam.
Abstract:
A method for manufacturing a three-dimensional shaped object comprising an undercut portion by alternate repetition of a powder-layer forming and a solidified-layer forming, the repetition comprising: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification of the powder; and (ii) forming another solidified layer by newly forming a powder layer on the formed solidified layer, followed by an irradiation of a predetermined portion of the newly formed powder layer with the light beam. Especially, in the manufacturing method according to an embodiment of the present invention, a modeling process for pre-identifying the undercut portion is performed prior to a performance of the method.
Abstract:
In order to provide the method for manufacturing the three-dimensional shaped object which is capable of preventing the occurrence of the raised portion at the sintered portion or the melted and subsequently solidified portion by the irradiation of the light beam, there is provided a method for manufacturing a three-dimensional shaped object by alternate repetition of a step (i) forming a powder-layer and a step (ii) forming a solidified layer by irradiating a predetermined portion of the powder layer with a light beam, wherein the light beam-irradiated portion is vibrated in the step (ii).
Abstract:
To provide an injection mold capable of filling a necessary resin material for obtaining a desired molded article in a cavity space of a fine mesh structure, there is provided an injection mold according to an embodiment of the present invention composed of a core mold and a cavity mold, in which a cavity space is formed when the core and cavity molds are in a contact with each other, the cavity space surrounding a plurality of contact areas between the core and cavity molds. In the injection mold according to an embodiment of the present invention, at least one of the core and cavity molds has a through-hole which has an opening in a parting plane of the core and cavity molds and extends from the opening to an outside of the injection mold, the parting plane corresponding to the contact areas between the core and cavity molds.
Abstract:
An apparatus for producing a laminated object, includes a powder layer forming unit for forming a powder layer of a powdery material, a material supply unit for feeding the powdery material to the powder layer forming unit; and a solidified layer forming unit for forming a solidified layer by irradiating a light beam on a specified portion of the powder layer and sintering or melting the specified portion of the powder layer. The apparatus is configured to produce an integrally laminated three-dimensional object by repeating formation of the powder layer and formation of the solidified layer. The material supply unit includes a cartridge unit charged with the powdery material, the cartridge unit being configured to allow the powdery material to drop downwards.
Abstract:
In order to provide a sprue-bush which is capable of suitably cooling a melt raw resin in a raw resin-flow path as a whole, there is provided a sprue-bush, comprising a raw resin-flow path and a cooling medium-flow path located around the raw resin-flow path, wherein a width dimension of the raw-resin flow path gradually becomes larger toward a downstream side-end surface of the sprue-bush, and wherein the downstream side-end surface of the sprue-bush is a heat transfer surface.
Abstract:
There is provided a manufacturing method of a three-dimensional shaped object, the method being capable of reducing a warp deformation of the three-dimensional shaped object. The manufacturing method according to an embodiment of the present invention produces a three-dimensional shaped object by alternate repetition of a powder-layer forming and a solidified-layer forming by light beam irradiation, wherein as a platform for the three-dimensional shaped object, a plate laminate body comprising a dummy solidified layer and a base plate for the shaped object is used, and the dummy solidified layer is formed on one of principal surfaces of the base plate, whereas the three-dimensional shaped object is manufactured on the other of the principal surfaces of the base plate.
Abstract:
There is provided a more efficient method for manufacturing a three-dimensional shaped object. The method of the present invention comprises a successive formation of a plurality of solidified layers through a light beam irradiation, wherein the solidified layers are provided by a hybrid of combined systems of an after irradiation system and a simultaneous irradiation system, the after irradiation system being such that the light beam irradiation is performed after a formation of a powder layer, the simultaneous irradiation system being such that the light beam irradiation is performed while a raw material is supplied.
Abstract:
There is provided a method for manufacturing a three-dimensional shaped object by alternate repetition of a powder-layer forming and a solidified-layer forming by an irradiation with a light beam in order to provide a selective laser sintering method capable of reducing a warp of the three-dimensional shaped object, the warp being due to a stress around an upper surface of the three-dimensional shaped object. Especially, in the present invention, a part of a region for the formation of the solidified layer is not irradiated with the light beam to form a non-irradiated portion, thereby providing at least one slit-groove at an upper surface of the three-dimensional shaped object, the slit-groove being for reducing a stress of the three-dimensional shaped object.