Abstract:
An equipment for metal-laser sintering process includes a powder layer forming unit, an irradiation unit which irradiates light beams, a correction target on which a correction mark serving as a fiducial in correction of the irradiation points of the light beams is formed, and an imaging camera which takes an image of the correction mark. The correction target is formed of a material which is melted by irradiation of light beam so as to be formed a through hole. The correction target is disposed on the substrate and the light beams are irradiated to penetrate the correction target so that the correction mark is formed. Subsequently, the imaging camera takes an image of the correction mark and the location of the correction mark is measured, and thus, correction of the irradiation points is performed. Since the correction mark is formed to be a through hole, contrast becomes clear so that location of the correction mark can be measured easily, and the correction of the irradiation points of the light beams can be performed easily.
Abstract:
In photo-shaping a target object executed by a photo-shaping machine (10) along with a computing device (1), a first path (P1) is generated as a light beam irradiation path on the basis of contour data of each section sliced at a specified pitch of three-dimensional CAD model data of the target object desired to be formed, and the first parameter data. A second path (P2) is generated as a removal processing path on the basis of the three-dimensional CAD model data, the second parameter data, and removing timing data showing a timing of executing the removal process. Driving programs (P3) are generated for executing the photo-shaping process including the light beam irradiation and the removal process, on the basis of the first path data, second path data and removing timing data, thereby performing the photo-shaping and removal process according to the driving programs.
Abstract:
An object of the invention is to provide a novel sugar-alcohol-modified organopolysiloxane compound which can have hydrophilicity effectively imparted thereto with a raw material incorporated even in a smaller amount, by using a precursor having a sugar alcohol residue, and which provides a nonionic surfactant usable in a wide range of applications. Another object is to provide processes for producing the compound.The invention relates to a sugar-alcohol-modified organopolysiloxane compound represented by formula (1) and processes for producing the compound. (In the formula, R1 represents a hydrocarbon group having 1-8 carbon atoms; X is a group represented by formula (2); Y represents —R4O(AO)nR5 (wherein AO is an oxyalkylene group having 2-4 carbon atoms, R4 is a divalent hydrocarbon group having 3-5 carbon atoms, R5 is any of a hydrogen atom, a hydrocarbon group having 1-24 carbon atoms, and an acyl group having 2-24 carbon atoms, and n is 1-100); R2 is any of R1, X, and Y; and a is 0-700, b is 0-100, and c is 0-50; provided that when b is 0, at least one of the R2s is X.) (In the formula, R3 is a divalent hydrocarbon group having 3-5 carbon atoms; and d is 1-2.)
Abstract:
A lamination shaping apparatus has a powder layer preparing means and an optical unit which irradiates a light beam to an intended portion of a powder layer so as to sinter or melt for solidifying the portion into a cured layer. Preparation of the powder layer and curing of the cured layer are repeated to fabricate a three-dimensional object in which a plurality of the cured layers are laminated and integrated. The apparatus includes a fixed base carrying thereon the powder layer and the cured layer, an elevator frame surrounding a periphery of the fixed base, and driving means for driving the elevator frame to move vertically. The powder layer is formed within a space above the base and surrounded by an interior surface of the elevator fame such that the powder layer (cured layer) can be stacked on the base with the base being kept at a fixed position, thereby facilitating to fabricate a precisely shaped object.
Abstract:
A three-dimensional object of a desired shape is made by irradiating an optical beam on a metal powder layer to form a sintered layer and by laminating such sintered layer one above another. A metal powder composition for use in making such a three-dimensional object includes an iron-based powder material, a nickel and/or nickel alloy powder material, a copper and/or copper alloy powder material, and a graphite powder material. The graphite powder material acts to enhance the wettability during melting and to reduce microcracks during solidification.
Abstract:
A wireless terminal includes a roaming detecting unit which detects roaming representing that a connected wireless LAN access point is changed and units which transmit a call control packet for authentication to the VoIP server by the detection of roaming by the roaming detecting unit. The roaming detecting unit compares identification information of a previously connected wireless LAN access point with identification information of a wireless LAN access point connected at the present every predetermined time, and detects roaming of the wireless LAN access point on the comparison result.
Abstract:
An apparatus for making a three-dimensional object includes a powdery layer-forming unit for forming a powdery layer on a table and an optical beam-irradiating unit for irradiating an optical beam on a predetermined region of the powdery layer to sinter the predetermined region. The optical beam-irradiating unit is disposed at a position spaced from immediately above an optical beam-irradiating range to obliquely irradiate the optical beam on the powdery layer. Because fumes generated by irradiating and heating the powdery layer with the optical beam rise towards a position immediately above them, the optical beam is irradiated from the position spaced from immediately above the optical beam-irradiating range, thereby reducing a cloud of the optical beam-irradiating unit that may be caused by the fumes.
Abstract:
An electric double layer capacitor, including at least one basic cell, an electrode plate, and an outer package which covers the basic cell and the electrode plate in a decompression state. The basic cell may be laminated in its thickness direction to form a layered cell and includes a separator, a pair of polarized electrodes disposed so as to sandwich the separator, a pair of collectors disposed so as to sandwich the polarized electrodes, and a gasket disposed between the pair of collectors so as to surround the pair of polarized electrodes. The electrode plate body is attached to each of the collectors located at the outermost side in a laminated direction of the layered cell. A sealing material having a higher gas barrier property than the collectors is disposed so as to seal an interface between the collectors and the electrode plate in the outer package.
Abstract:
To make a three-dimensional object, an optical beam is first irradiated on a predetermined portion of a powder layer to form a sintered layer, which is then covered with a new powder layer. The optical beam is again irradiated on a predetermined portion of the new powder layer to form another sintered layer that has been united with the underlying sintered layer. These processes are repeatedly carried out to form a plurality of sintered layers united together, which have a size greater than that of a target shape of the three-dimensional object. A surface region of a shaped object formed by then is removed during the formation of the plurality of sintered layers.
Abstract:
There is provided a method for manufacturing a three-dimensional shaped object. The method of the present invention comprises the repeated 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; wherein only the surface portion of the solidified layer, to which a force is applied when the three-dimensional shaped object is used, is subjected to a machining process.