Abstract: A three-dimensional object shaping method includes the steps of a powder layer forming step, a sliding step of a squeegee on the supplied powder, and a sintering step of irradiating the powder layer, all successively repeated, wherein after dividing shaping regions into a plurality of laminating units, each laminating unit of the plurality of laminating units is divided into an inside region including a maximum prearranged sintering region, and an outside region not including the maximum prearranged sintering region, and wherein the squeegee sliding speed in the outside region is set to be greater than the sliding speed in the inside region.

Abstract: A support for supporting a workpiece from below efficiently while reducing the amount of necessary materials, and a shaping method for shaping the workpiece and support efficiently includes a hollow state support for supporting a workpiece from below, and the hollow state support has a lattice form with crossing of straight linear or curved columnar bodies, wherein a sintered strength at a connecting region with the workpiece is lower than the sintered strength at the other regions.

Abstract: A three-dimensional shaping method in which the powder supplying blade 2 is able to travel without any problems, in which a control system stores in advance a fine sintered region 11 so that any one of a cross-sectional area or a mean diameter in the horizontal direction, a shaping width and an undercut angle at the end is equal to or less than a predetermined extent, or the control system makes a determination in a sintering step, for said each element, so in the case of the raised sintered portions 12 forming on the upper side of the sintered region 11, a rotating cutting tool 3 cuts the raised sintered portions 12 entirely or partially, thereby achieving the object.

Abstract: A support for supporting a workpiece from below efficiently while reducing the amount of necessary materials, and a shaping method for shaping the workpiece and support efficiently includes a hollow state support for supporting a workpiece from below, and the hollow state support has a lattice form with crossing of straight linear or curved columnar bodies, wherein a sintered strength at a connecting region with the workpiece is lower than the sintered strength at the other regions.

Abstract: A three-dimensional shaping method utilizing a powder layer forming step, and a sintering step with a laser beam or electron beam, the method including the steps of a) measuring a light intensity of sparks and photographing the sparks generated with fly-off of powder caused by irradiation of the beam over the entire periphery of the sintering region, b) commanding to continue sintering within the next time unit or the next powder layer forming step, when it is detected that the region width and light intensity are within the standard ranges for a given time unit, and c) commanding to cancel sintering in the next time unit or the next powder layer forming step when a sintering defect has occurred, when it is detected that a condition has occurred in which the region width and light intensity deviate from the standard ranges for a given time unit.

Abstract: A support for supporting a workpiece from below efficiently while reducing the amount of necessary materials, and a shaping method for shaping the workpiece and support efficiently includes a hollow state support for supporting a workpiece from below, and the hollow state support has a lattice form with crossing of straight linear or curved columnar bodies, wherein a sintered strength at a connecting region with the workpiece is lower than the sintered strength at the other regions.

Abstract: A three-dimensional shaping method utilizing a powder layer forming step, and a sintering step with a laser beam or electron beam, the method including the steps of a) measuring the reflection intensity of the beam irradiated in each sintering step, or the reflection intensity of other light, b) commanding to continue sintering within the next time unit, or when the next powder layer forming step is given, when it has been detected that the reflection intensity of the step a) is within a standard range for a given time unit, and, c) judging that a sintering defect has been produced, and commanding to cancel sintering in the next time unit, or when the next powder layer forming step is given, when it is detected that a condition has occurred in which the reflection intensity of step a) deviates from the standard range for a given time unit.

Abstract: A support for supporting a workpiece from below efficiently while reducing the amount of necessary materials, and a shaping method for shaping the workpiece and support efficiently includes a hollow state support for supporting a workpiece from below, and the hollow state support has a lattice form with crossing of straight linear or curved columnar bodies, wherein a sintered strength at a connecting region with the workpiece is lower than the sintered strength at the other regions.

Abstract: A three-dimensional shaping method utilizing a powder layer forming step, and a sintering step with a laser beam or electron beam, the method including the steps of a) measuring the reflection intensity of the beam irradiated in each sintering step, or the reflection intensity of other light, b) commanding to continue sintering within the next time unit, or when the next powder layer forming step is given, when it has been detected that the reflection intensity of the step a) is within a standard range for a given time unit, and, c) judging that a sintering defect has been produced, and commanding to cancel sintering in the next time unit, or when the next powder layer forming step is given, when it is detected that a condition has occurred in which the reflection intensity of step a) deviates from the standard range for a given time unit.

Abstract: A three-dimensional object shaping method includes the steps of a powder layer forming step, a sliding step of a squeegee on the supplied powder, and a sintering step of irradiating the powder layer, all successively repeated, wherein after dividing shaping regions into a plurality of laminating units, each laminating unit of the plurality of laminating units is divided into an inside region including a maximum prearranged sintering region, and an outside region not including the maximum prearranged sintering region, and wherein the squeegee sliding speed in the outside region is set to be greater than the sliding speed in the inside region.

Abstract: A three-dimensional shaping method utilizing a powder layer forming step, and a sintering step with a laser beam or electron beam, the method including the steps of a) measuring a light intensity of sparks and photographing the sparks generated with fly-off of powder caused by irradiation of the beam over the entire periphery of the sintering region, b) commanding to continue sintering within the next time unit or the next powder layer forming step, when it is detected that the region width and light intensity are within the standard ranges for a given time unit, and c) commanding to cancel sintering in the next time unit or the next powder layer forming step when a sintering defect has occurred, when it is detected that a condition has occurred in which the region width and light intensity deviate from the standard ranges for a given time unit.

Abstract: A three-dimensional shaping method in which the powder supplying blade 2 is able to travel without any problems, in which a control system stores in advance a fine sintered region 11 so that any one of a cross-sectional area or a mean diameter in the horizontal direction, a shaping width and an undercut angle at the end is equal to or less than a predetermined extent, or the control system makes a determination in a sintering step, for said each element, so in the case of the raised sintered portions 12 forming on the upper side of the sintered region 11, a rotating cutting tool 3 cuts the raised sintered portions 12 entirely or partially, thereby achieving the object.

Abstract: A three-dimensional shaping method in which the powder supplying blade 2 is able to travel without any problems, in which a control system stores in advance a fine sintered region 11 so that any one of a cross-sectional area or a mean diameter in the horizontal direction, a shaping width and an undercut angle at the end is equal to or less than a predetermined extent, or the control system makes a determination in a sintering step, for said each element, so in the case of the raised sintered portions 12 forming on the upper side of the sintered region 11, a rotating cutting tool 3 cuts the raised sintered portions 12 entirely or partially, thereby achieving the object.

Abstract: A three-dimensional shaping method includes a step of forming a powder layer and a step of sintering the powder layer by a moving laser beam or electron beam are alternately repeated to perform a multilayer operation within a container, a plurality of equal-width divided regions are set in a multilayer region along a height direction, and then the number of multilayers N in each of equal-width divided regions which can reflect the degree of variations, according to the degree of variations in the shape of the cross section of a boundary on the upper side and the shape of the cross section of a boundary on the lower side in each of the equal-width divided regions, and the thickness of each multilayer unit in each equal-width divided region is selected, and the coordinates of an outer periphery in each of the cross sections of the number N are set.

Abstract: A three-dimensional shaping method includes a step of forming a powder layer and a step of sintering the powder layer by a moving laser beam or electron beam are alternately repeated to perform a multilayer operation within a container, a plurality of equal-width divided regions are set in a multilayer region along a height direction, and then the number of multilayers N in each of equal-width divided regions which can reflect the degree of variations, according to the degree of variations in the shape of the cross section of a boundary on the upper side and the shape of the cross section of a boundary on the lower side in each of the equal-width divided regions, and the thickness of each multilayer unit in each equal-width divided region is selected, and the coordinates of an outer periphery in each of the cross sections of the number N are set.

Abstract: A three-dimensional shaping method in which the powder supplying blade 2 is able to travel without any problems, in which a control system stores in advance a fine sintered region 11 so that any one of a cross-sectional area or a mean diameter in the horizontal direction, a shaping width and an undercut angle at the end is equal to or less than a predetermined extent, or the control system makes a determination in a sintering step, for said each element, so in the case of the raised sintered portions 12 forming on the upper side of the sintered region 11, a rotating cutting tool 3 cuts the raised sintered portions 12 entirely or partially, thereby achieving the object.

Abstract: Three-dimensional molding equipment includes powder supply equipment which forms powder layer in a laminating process; and a beam scanning unit which radiates a light or electron beam to the powder layer and moves a radiated location of the beam to sinter the powder layer, wherein the laminating and sintering processes alternately repeat, a molding path to be a scanning route of the beam on the inside of an object to be molded is preliminarily set as a continuous route which does not pass a same line and does not form any intersection, and the beam is continuously radiated along the molding path, wherein two molding paths adjacent each other formed of two straight or curve lines are set, and a distance between the adjacent scanning routes is formed larger than a radiation diameter of the beam and not larger than ten-times the radiation diameter of the same.

Abstract: A clamp of less waste instruction method for an addition axis, which omits instructions for clamping and unclamping and working in response to those instructions, includes the steps of, at a stage of working a work piece with a tool, measuring a rotational torque generated by the working with respect to the addition axis coupled to a table which supports the work piece or a pallet having the work piece mounted thereon; and generating a clamp instruction to the addition axis when the rotational torque exceeds a predetermined reference value.

Abstract: A clamp of less waste instruction method for an addition axis, which omits instructions for clamping and unclamping and working in response to those instructions, includes the steps of, at a stage of working a work piece with a tool, measuring a rotational torque generated by the working with respect to the addition axis coupled to a table which supports the work piece or a pallet having the work piece mounted thereon; and generating a clamp instruction to the addition axis when the rotational torque exceeds a predetermined reference value.