Abstract: The apparatus for additively manufacturing includes a chamber, a work table, a base plate, an imaging apparatus, an image processing apparatus, and a control apparatus. The imaging apparatus images a first region including an entire build region on the work table to obtain a first image which the image processing apparatus analyzes to obtain position information of the base plate in the build region. The control apparatus calculates coordinates of a detection target point as first calculated coordinates from the position information. The imaging apparatus images a second region being a part of the first region and including the first calculated coordinates to obtain a second image which the image processing apparatus analyzes to obtain position information of the detection target point in the build region. The control apparatus calculates coordinates of the detection target point as second calculated coordinates from the position information of the detection target point.

Abstract: An additive manufacturing apparatus including a chamber, a manufacturing table, an imaging device, an image processing device, and a control device, in which a base plate disposed on the manufacturing table includes a first side and a second side, a first camera in the imaging device images a first region to acquire a first image and images a second region to acquire a second image, the image processing device analyzes the first and second images to acquire position information of each side, and the control device calculates a coordinate of an intersection point of the first side and the second side or an intersection point on extended lines of the first side and the second side as a point to be detected.

Abstract: Provided is a metal 3D printer provided with a powder layer formation device for uniformly distributing a metal powder and forming a powder layer for each of a plurality of division layers obtained by horizontally dividing a three-dimensional object, a hermetically sealed chamber, a laser irradiation device for irradiating laser light to a predetermined irradiation region on each of the powder layers and forming a sintered layer, an inert gas supplying device for supplying an inert gas to the chamber and discharging fumes to the outside of the chamber, and a control device for issuing a command to start irradiation of the laser light to the laser light irradiation device after a standby time has elapsed that corresponds to a residual amount of fumes in the chamber, such that irradiation by the laser light at the necessary energy is unaffected.

Abstract: A metal 3-D printer includes a powder layer formation device having a blade for planarizing metal powder, a table driving device lowering a table by a predetermined lowering distance in anticipation of a formation of a powder layer, a laser irradiating device irradiating a laser beam at the powder layer to form a sintered layer having a predetermined upper surface region, a numerical control apparatus controlling the powder layer formation device, the table driving device, the laser irradiating device and a machining apparatus. When the blade collides with an obstacle formed on an upper most sintered layer, an end mill is lowered according to a predetermined lowering distance such that a lower end of the end mill is lower than an upper surface of the powder layer, and moves the end mill across a predetermined upper surface region of the uppermost sintered layer to remove the obstacle.

Abstract: A metal 3-D printer includes a powder layer formation device having a blade for planarizing metal powder, a table driving device lowering a table by a predetermined lowering distance in anticipation of a formation of a powder layer, a laser irradiating device irradiating a laser beam at the powder layer to form a sintered layer having a predetermined upper surface region, a numerical control apparatus controlling the powder layer formation device, the table driving device, the laser irradiating device and a machining apparatus. When the blade collides with an obstacle formed on an upper most sintered layer, an end mill is lowered according to a predetermined lowering distance such that a lower end of the end mill is lower than an upper surface of the powder layer, and moves the end mill across a predetermined upper surface region of the uppermost sintered layer to remove the obstacle.

Abstract: A lamination molding apparatus, including a numerical control apparatus configured to form a desired lamination molding object by a repetition in accordance with a main program pre-created and numbered with a sequence number, the main program including a plurality of program lines, wherein the repetition includes forming a material powder layer of a predetermined thickness on a molding table for each divided layer, the molding table being vertically movable, the divided layer being obtained by dividing a shape of the desired lamination molding object at the predetermined thickness; and irradiating a predetermined area of the material powder layer with a laser beam to form a sintered layer.

Abstract: Provided is a metal 3D printer provided with a powder layer formation device for uniformly distributing a metal powder and forming a powder layer for each of a plurality of division layers obtained by horizontally dividing a three-dimensional object, a hermetically sealed chamber, a laser irradiation device for irradiating laser light to a predetermined irradiation region on each of the powder layers and forming a sintered layer, an inert gas supplying device for supplying an inert gas to the chamber and discharging fumes to the outside of the chamber, and a control device for issuing a command to start irradiation of the laser light to the laser light irradiation device after a standby time has elapsed that corresponds to a residual amount of fumes in the chamber, such that irradiation by the laser light at the necessary energy is unaffected.

Abstract: A lamination molding apparatus, including a numerical control apparatus configured to form a desired lamination molding object by a repetition in accordance with a main program pre-created and numbered with a sequence number, the main program including a plurality of program lines, wherein the repetition includes forming a material powder layer of a predetermined thickness on a molding table for each divided layer, the molding table being vertically movable, the divided layer being obtained by dividing a shape of the desired lamination molding object at the predetermined thickness; and irradiating a predetermined area of the material powder layer with a laser beam to form a sintered layer.

Abstract: A metal 3-D printer includes a powder layer formation device having a blade for planarizing metal powder, a table driving device lowering a table by a predetermined lowering distance in anticipation of a formation of a powder layer, a laser irradiating device irradiating a laser beam at the powder layer to form a sintered layer having a predetermined upper surface region, a numerical control apparatus controlling the powder layer formation device, the table driving device, the laser irradiating device and a machining apparatus. When the blade collides with an obstacle formed on an upper most sintered layer, an end mill is lowered according to a predetermined lowering distance such that a lower end of the end mill is lower than an upper surface of the powder layer, and moves the end mill across a predetermined upper surface region of the uppermost sintered layer to remove the obstacle.

Abstract: Provided is an easily fabricated awning-member molded article having excellent strength, and an awning formed from a plurality of such awning-member molded articles. When an awning-member molded article is viewed from its bottom surface, a small-triangular plate portion bent toward a bottom surface of a second dihedron and a small-triangular plate portion bent toward a bottom surface of a third dihedron have a predetermined thickness at their portions abutted against each other, so that the second dihedron and the third dihedron in each basic element are coupled to each other. Further, a middle-triangular plate portion bent toward the bottom surface of the second basic element and a middle-triangular plate portion bent toward the bottom surface of the third basic element are provided with a predetermined thickness at their portions abutted against each other, so that the second basic element and the third basic element are coupled to each other.

Abstract: Provided is an awning-member molded article which can be easily fabricated and have an excellent strength, and an awning formed from a plurality of such awning-member molded articles. When an awning-member molded article 1 is viewed from its bottom surface, a small-triangular plate portion 12b bent toward a bottom surface of a second dihedron 12 and a small-triangular plate portion 13a bent toward a bottom surface of a third dihedron 13 have a predetermined thickness, at their portions abutted against each other (the portions indicated by an arrow P), so that the second dihedron 12 and the third dihedron 13 in each of basic elements 2, 3, 4, and 5 are coupled to each other.

Abstract: A wire electric discharge machining method of machining the workpiece with different thickness into a required shape with first cut and second cut. The method includes the steps of (a) detecting a position of the wire electrode relative to the workpiece, (b) detecting change in thickness of the workpiece during first cut, (c) storing the position of wire electrode as a thickness change position (Q1) when change in thickness of the workpiece from a first thickness (t1) to a second thickness (t2) is detected, (d) forming a zone (?) around the thickness change position, (e) comparing the position of wire electrode to the zone during second cut, and (f) changing at least one machining condition during times when it is determined that the wire electrode is positioned in the zone.

Abstract: A wire electric discharge machining method of machining the workpiece with different thickness into a required shape with first cut and second cut. The method includes the steps of (a) detecting a position of the wire electrode relative to the workpiece, (b) detecting change in thickness of the workpiece during first cut, (c) storing the position of wire electrode as a thickness change position (Q1) when change in thickness of the workpiece from a first thickness (t1) to a second thickness (t2) is detected, (d) forming a zone (?) around the thickness change position, (e) comparing the position of wire electrode to the zone during second cut, and (f) changing at least one machining condition during times when it is determined that the wire electrode is positioned in the zone.

Abstract: There is disclosed a fixing device for a speed meter driven gear which comprises a sleeve attached to a transmission casing or an extension housing thereof in an automobile, a rotary shaft rotatably disposed within the sleeve, and a speed meter driven gear fixedly mounted on part of the rotary shaft in a manner to be maintained in meshing relation to a speed meter drive gear of an output shaft. A resilient clip is secured to the aforesaid rotary shaft and sleeve, so as to restrain the axial directional movement of the rotary shaft within the sleeve.A slit is provided in the aforesaid sleeve, and an annular groove is provided in the aforesaid rotary shaft in a manner to correspond with the slit, so that a locking portion of the aforesaid resilient clip may be locked in the slit and annular groove, and a retaining portion thereof is resiliently retained by the aforesaid sleeve.

Abstract: A fire fighting apparatus for installation in an automobile, essentially comprising an outer container containing a fire extinguishing composition, an inner container encased in the outer container and supported in a fixed position relative to the outer container, the inner container containing a high pressure gas, and a plunger slidably supported by the outer container in a destructively engageable relationship with the inner container. The outer container includes an outlet defining a nozzle which is normally closed by a plug made of a collapsible material. The inner container is at least partially made of a fragile material, and the plunger is destructively engageable with the fragile material. An impact generated by collision of the automobile brings the plunger into destructive engagement with the inner container, so that the high pressure gas flows out into the outer container and raises the pressure of the composition therein. The composition collapses the plug and spouts out through the nozzle.