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 filled 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.