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 on a base plate, wherein the forming of at least one prior solidified layer is performed under a higher temperature condition than that for the forming of a subsequent solidified layer, the at least one prior solidified layer being formed prior to the subsequent solidified layer.
Abstract:
In order to provide a sprue-bush which is capable of more suitably cooling a melt raw resin in a flow path for a raw resin, there is provided a sprue-bush comprising a flow path for a raw resin and a flow path for cooling media located around the flow path for the raw resin, wherein the sprue-bush comprises a low heat transfer portion, the low heat transfer portion being located at a local region between an upper side portion of the flow path for the raw resin and the flow path for the cooling media, the low heat transfer portion being in a heat transfer relatively lower than that of a region other than the local region.
Abstract:
There is provided a selective laser sintering method capable of reducing the bulge of the peripheral portion corresponding to the periphery of the three-dimensional shaped object. The manufacturing method according to an embodiment of the present invention includes 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 sintering the powder in the predetermined portion or a melting and subsequently solidifying the powder; and (ii) forming another solidified layer by newly forming a powder layer on the formed solidified layer, followed by irradiation of a predetermined portion of the newly formed powder layer with the light beam, wherein a scanning of the light irradiation is divided into light beam-scannings “A” and “B”.
Abstract:
There is provided a selective laser sintering method capable of reducing the trouble in chipping or breakage of the machining tool and the like. The manufacturing method according to an embodiment of the present invention is a method for manufacturing a three-dimensional shaped object by repetition of a powder-layer forming and a solidified-layer forming, the repetition including the steps of (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 thereof, and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, followed by the irradiation of a predetermined portion of the powder layer with the light beam.
Abstract:
The voice control device includes a sound source signal input unit, a frequency determination unit, a band controller, a sound image controller, and a voice output unit. The sound source signal input unit inputs a sound source signal of content from a sound source. The frequency determination unit determines a cutoff frequency. The band controller acquires a high frequency signal in a frequency band equal to or higher than the cutoff frequency and a low frequency signal in a frequency band equal to or lower than the cutoff frequency, from the sound source signal of the content. The sound image controller generates a plurality of sound image control signals for controlling sound images of the plurality of speakers, by controlling at least one of a phase and a sound pressure level of the high frequency signal. The voice output unit outputs the low frequency signal to a first speaker, and outputs the plurality of sound image control signals to a second speaker composed of a plurality of speakers.
Abstract:
In the noise reduction device, the sound receiver receives a noise signal acquired from the microphone. The sound source input unit receives an input of a sound source signal from a sound source. The sound adjuster changes the intensity of the sound source signal relative to the intensity of the noise signal. The control sound generator generates a control sound signal that reduces the noise signal. The control unit controls the change of the intensity of the sound source signal and the generation of the control sound signal. The sound output outputs the control sound signal to the speaker. The sound output outputs to the speaker the sound source signal at the intensity changed by the sound adjuster.
Abstract:
In order to provide a manufacturing method of the three-dimensional shaped object having a more proper heat property to be used as a metal mold, 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, 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, wherein the three-dimensional shaped object is manufactured such that it has a heat source element in the three-dimensional shaped object, and also has a surface in a form of a concavity-convexity, and wherein a main surface of the heat source element and the surface of the concavity-convexity have the same shape as each other.
Abstract:
In order to to provide a manufacturing method of a three-dimensional shaped object having a more proper heat removal property to be used as a metal mold, 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, wherein the manufacturing method of the present invention, the three-dimensional shaped object is manufactured such that it has a flow path for cooling media in the three-dimensional shaped object, and also has a surface in a form of a concavity-convexity, and wherein a part of a contour surface of the flow path for the cooling media and the surface of the concavity-convexity have the same shape as each other.
Abstract:
A selective laser sintering method reduces a warping deformation of a three-dimensional shaped object, the warping deformation being due to the scanning of a light beam. The manufacturing method is a method for manufacturing a three-dimensional shaped object by alternate repetition of a powder-layer forming and a solidified-layer forming, wherein a scanning of the light irradiation is divided into light beam-scannings “A” and “B”, the light beam-scanning “A” being for the light irradiation of a peripheral portion corresponding to a periphery of the three-dimensional shaped object, and the light beam-scanning “B” being for the light irradiation of an internal portion corresponding to a region of the three-dimensional shaped object, the region being located inside the periphery. In particular, the peripheral portion is subjected to a discontinuous light beam-irradiation in the light beam-scanning “A” such that an irradiation path of the light beam is divided into a plurality of sub-irradiation paths.
Abstract:
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 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, wherein a removal of a mobile foreign material is performed prior to at least one time-formation of the solidified layer, the mobile foreign material existing in an upper surface region of a latest formed solidified layer.