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: In a three-dimensional shaping device, a region of an elevatable/lowerable table 2 for forming a powder layer and a region of a powder supply device are divided by a shield plate, an inert gas injection port is provided in the former region, the shield plate can be freely opened or closed so that a powder spraying squeegee traveling on the table is passed through, or a pipe which supplies powder from the powder supply device to the powder spraying squeegee which has traveled to the side of the shield plate penetrates through the shield plate, or a part of the shield plate is the powder supply port for the powder spraying squeegee which has traveled to the side of the shield plate and the pipe protrudes at a lower part and a sintering device applies a laser beam via a transparent region in a ceiling of a chamber.

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: In a three-dimensional shaping device, a region of an elevatable/lowerable table 2 for forming a powder layer and a region of a powder supply device are divided by a shield plate, an inert gas injection port is provided in the former region, the shield plate can be freely opened or closed so that a powder spraying squeegee traveling on the table is passed through, or a pipe which supplies powder from the powder supply device to the powder spraying squeegee which has traveled to the side of the shield plate penetrates through the shield plate, or a part of the shield plate is the powder supply port for the powder spraying squeegee which has traveled to the side of the shield plate and the pipe protrudes at a lower part and a sintering device applies a laser beam via a transparent region in a ceiling of a chamber.

Abstract: A mold for resin injection molding 1 having a shaping region formed by a low-density shaped portion 22 and a high-density shaped portion 21 in which each ventilation channel 32 for gas existing between an external region and a molding portion region forms a hollow state surrounded by a peripheral wall having any one or both of the high-density shaped portion 21 and the low-density shaped portion 22, and the secondary vent 33 connecting communicatively with a region molding portion is formed only by a low-density shaped portion 22 with thickness thinner than that of the shaping region.

Abstract: A cutting method for an inner circumferential face or an outer circumferential face of a work using a cutting tool projecting from a main shaft which turns around a predetermined position serving as a center and for which a turning radius is adjustable, wherein a table that supports the work is set in a rotating central axis that is coaxial with a turning central axis of the main shaft, and the table is rotated in a direction opposite to a turning direction of the main shaft to increase a cutting velocity. The cutting method allows an increase to the cutting velocity under simple control.

Abstract: A cutting method in which, in cutting a circumferential face of a work, control is enabled to make a cutting velocity constant accurately by using a cutting tool projecting from a main shaft which turns around a predetermined position serving as a center and for which a turning radius is adjustable, wherein, in the case that a turning angular velocity of the main shaft is represented as ?, a distance from a turning center to a tip of the cutting tool is represented as R, and a cutting velocity of the tip of the cutting tool is set to a constant value C, making the cutting velocity of the cutting tool constant by performing control such that ?0 changes in association with a change in the distance R so that ?=(C2?{dot over (R)}2)1/2/R is formulated (where {dot over (R)} denotes a time differential of the distance R), thus providing an even cut face.

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 cutting method in which, in cutting a circumferential face of a work, control is enabled to make a cutting velocity constant accurately by using a cutting tool projecting from a main shaft which turns around a predetermined position serving as a center and for which a turning radius is adjustable, wherein, in the case that a turning angular velocity of the main shaft is represented as ?, a distance from a turning center to a tip of the cutting tool is represented as R, and a cutting velocity of the tip of the cutting tool is set to a constant value C, making the cutting velocity of the cutting tool constant by performing control such that ?0 changes in association with a change in the distance R so that ?=(C2?{dot over (R)}2)1/2/R is formulated (where {dot over (R)} denotes a time differential of the distance R), thus providing an even cut face.

Abstract: A cutting method in which, in cutting an inner circumferential face or an outer circumferential face of a work based on turning of a main shaft around a predetermined position serving as a center, control is enabled to make a cutting velocity constant. To achieve the object, a cutting method is provided for an inner circumferential face or an outer circumferential face of a work, using a cutting tool projecting from a main shaft which turns around a predetermined position serving as a center and for which a turning radius is adjustable, wherein, in the case that a turning angular velocity of the main shaft is represented as ?, a distance from a turning center to a tip of the cutting tool is represented as R, and a cutting velocity of the tip of the cutting tool is set to a constant value C, making the cutting velocity of the cutting tool is made constant by performing control such that ? changes in association with a change in the distance R so that ? = ( C 2 - R .

Abstract: A cutting method for an inner circumferential face or an outer circumferential face of a work using a cutting tool projecting from a main shaft which turns around a predetermined position serving as a center and for which a turning radius is adjustable, wherein a table that supports the work is set in a rotating central axis that is coaxial with a turning central axis of the main shaft, and the table is rotated in a direction opposite to a turning direction of the main shaft to summate a cutting velocity. The cutting method allows a summation to the cutting velocity under simple control.

Abstract: A mold for resin injection molding 1 having a shaping region formed by a low-density shaped portion 22 and a high-density shaped portion 21 in which each ventilation channel 32 for gas existing between an external region and a molding portion region forms a hollow state surrounded by a peripheral wall having any one or both of the high-density shaped portion 21 and the low-density shaped portion 22, and the secondary vent 33 connecting communicatively with a region molding portion is formed only by a low-density shaped portion 22 with thickness thinner than that of the shaping region.

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 pallet changing system which utilizes the moving function itself of a machine head at a machining center for conveying a pallet and a configuration of a machining center equipping the system, combines a machine head 2 for machining a workpiece with a pallet changing unit 1 having a pallet changing arm 11 which can be rotated by a motor 13 and then allowed to move, by which a pallet 3 is conveyed, and the new pallet 3 for changing is changed with the existing pallet 3 gripped by a pallet clamping device 4 by turning the pallet changing arm 11, and a machining center which equips the above system and also machines a workpiece by using the machine head 2.

Abstract: A pallet changing system which utilizes the moving function itself of a machine head at a machining center for conveying a pallet and a configuration of a machining center equipping the system, combines a machine head 2 for machining a workpiece with a pallet changing unit 1 having a pallet changing arm 11 which can be rotated by a motor 13 and then allowed to move, by which a pallet 3 is conveyed, and the new pallet 3 for changing is changed with the existing pallet 3 gripped by a pallet clamping device 4 by turning the pallet changing arm 11, and a machining center which equips the above system and also machines a workpiece by using the machine head 2.

Abstract: A method for producing a three-dimensional shaped article, including molding by irradiation of an optical beam to powder and by a rotating tool, providing a hollow part in a base pedestal supporting a shaped object, filling the hollow part with powder, forming a powder layer in the upper part of the hollow part and a surrounding region thereof, after a sintering region supporting the shaped object from the underside is formed in a region containing the powder layer, molding three or more supports of the base pedestal and two or more support frames connecting the shaped object, then the molded product and the base pedestal are then reversed in a vertical direction, thereby cutting and removing the sintering region, and molding the bottom part to achieve the object based on the fact that the supporting frames and the shaped object are cut and separated.

Abstract: The present invention has an object to provide a tool replacement system that is capable of preventing the waiting time from occurring as much as possible although an intermediate magazine arranged therefore has a smaller capacity than prior arts. In the tool replacement system, programs pertaining to the sequence of operation and operation time of operating tools 7 are established, wherein, when the operation time of individual tools 7 is shorter than the conveyance time for reciprocation of the tool conveyance apparatus 3 between the tool magazine 1 and the tool replacement arm 4, the object can be solved by realizing transfer of at least a part of the tools planned to be operated in a next process of the corresponding individual tools 7 to the tool replacement arm 4 after the tools are arranged to the intermediate magazine 5.

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 vibration state detecting method at a machining stage of a work and/or tool, includes the steps of mounting the work and/or tool on a predetermined rotational device and measuring a deviation size and/or deviation average speed corresponding to each rotational number of the work and/or tool; presetting the deviation size and/or the deviation average speed measured by using the rotational device, a vibration amplitude and/or vibration average speed when each machine tool having a work and/or tool mounted thereon is rotated, with a common unbalance amount and at a rotational speed, and proportional fixed number of both thereof; and calculating a vibration amplitude and/or vibration average speed corresponding to each number of rotations when the work and/or tool is mounted on each machine tool by using a measurement value of the deviation size and/or deviation average speed of using rotational device, and the proportional fixed number.