JP7213164B2 - Metal additive manufacturing system, metal additive manufacturing method, program - Google Patents

Description

The present invention relates to a metal additive manufacturing system, a metal additive manufacturing method, and a program.

In recent years, the need for 3D printers as a means of production has increased, and research and development are being carried out for practical application in the aircraft industry, etc., especially for application to metal materials. 3D printers using metal materials use a heat source such as a laser or an arc to melt metal powder or metal wire, and layer the molten metal to form a modeled object.

For example, in Patent Document 1, an additional processing chamber containing a nozzle for forming a molded product using a powder material is provided on the side of the additional processing chamber, and the molded product formed in the additional processing chamber is subjected to removal processing. A removal processing chamber containing a removal processing unit, a holding mechanism for holding two pallets, and a holding mechanism that rotates so that one pallet is positioned within the additional processing chamber and the other pallet is positioned within the removal processing chamber. and a partition member for opening and closing an opening provided between an additional processing chamber and a removal processing chamber in conjunction with the rotation of the holding mechanism. there is
Further, Patent Document 1 describes supplying an inert gas such as nitrogen gas or argon gas into the additional processing chamber during additional processing depending on the type of powder material.

Japanese Unexamined Patent Application Publication No. 2018-75778

By the way, when manufacturing a product with a laminate-molded object, which is an object formed by layering metal, in addition to forming the laminate-molded object and processing the laminate-molded object, inspection of the laminate-molded object is also executed as a series of processes. I have a request to do so.
In addition, when forming a laminate, processing the laminate, and inspecting the laminate as a series of processes, for example, hazardous materials generated during the manufacture of laminates may remain around the laminates. There was a risk of accidents caused by this hazardous material.

SUMMARY OF THE INVENTION An object of the present invention is to suppress the occurrence of disasters caused by hazardous substances generated in the production of a laminate-molded article, etc., when forming, processing, and inspecting the laminate-molded article as a series of processes.

Based on this object, the present invention is capable of accommodating a base material on which a base material is loaded and moved, and a plurality of metal layers are formed on the base material mounted on the base material using a modeling material containing metal. A first room for forming a laminate-molded article formed by stacking the , a third room capable of accommodating the pedestal and inspecting the layered product on the base material loaded on the pedestal; the first room, the second room and the third room; Opening and closing means for connecting and disconnecting the rooms by opening and closing each of the rooms, and detecting the concentration of dangerous substances in each of the first room, the second room and the third room. A metal additive manufacturing system, comprising detecting means and prohibiting means for prohibiting connection of the rooms by the opening/closing means when the concentration of the dangerous substance in any of the rooms reaches or exceeds a predetermined reference concentration. I will provide a.
Here, when the concentration of the dangerous substance in any of the rooms becomes equal to or higher than a predetermined reference concentration, the prohibition means prevents the trestle from moving between the first room and the second room. movement of the platform, movement of the platform between the second room and the third room, and movement of the platform between the third room and the first room , may be
Also, the concentration of the dangerous substance may be the concentration of metal powder in the atmosphere.
Also, the reference density may be different for each room.
Moreover, it is also possible that there are a plurality of the mounts on which the base material is loaded.
Also, the base material may be loaded across a plurality of pedestals.

In addition, the present invention is provided in a first room capable of accommodating a frame on which a base material is loaded and moved, and a plurality of metals are formed on the base material loaded on the frame using a modeling material containing metal. Forming means for forming a laminate-molded article formed by laminating layers, and processing for processing the laminate-molded article on the base material mounted on the mount, which is provided in a second room capable of accommodating the mount. means, inspection means provided in a third room capable of accommodating the pedestal and inspecting the laminate-molded article on the base material loaded on the pedestal, the first room, the second room and opening/closing means for connecting and disconnecting the rooms by opening/closing each of the third rooms; and prohibiting means for prohibiting connection of the rooms to each other by the opening/closing means when the concentration of the dangerous substance in any of the rooms exceeds a predetermined reference concentration. , provides a metal additive manufacturing system.

In addition, the present invention can accommodate a frame on which a base material is loaded and moves, and a plurality of metal layers are laminated on the base material loaded on the frame using a modeling material containing metal. The concentration of dangerous substances in the first room for forming the layered product, and the second room that can accommodate the frame and process the layered product on the base material loaded on the frame and a concentration of the dangerous substance in a third room capable of accommodating the cradle and inspecting the AM article on the base material loaded on the cradle. and connection of the rooms including the first room, the second room, and the third room when the concentration of the dangerous substance in any of the rooms reaches or exceeds a predetermined reference concentration and prohibiting the metal additive manufacturing method.

Further, according to the present invention, the computer can accommodate a frame on which a base material is loaded and moved. The concentration of dangerous substances in the first room for forming the layered product formed by Acquire the concentration of the dangerous substance in the room and the concentration of the dangerous substance in a third room that can accommodate the cradle and inspect the laminate-molded article on the base material loaded on the cradle and when the concentration of the dangerous substance in any room becomes equal to or higher than a predetermined reference concentration, each room including the first room, the second room and the third room To provide a program that realizes a function of prohibiting the connection of

ADVANTAGE OF THE INVENTION According to this invention, when performing formation of a laminate-molded article, processing, and an inspection as a series of processes, generation|occurrence|production of the disaster caused by the dangerous substance which generate|occur|produced with manufacture of the laminate-molded article etc. can be suppressed.

BRIEF DESCRIPTION OF THE DRAWINGS It is the figure which showed the example of a schematic structure of the metal additive manufacturing system in embodiment of this invention. 1 is a perspective view showing a schematic configuration example of a structure manufacturing apparatus; FIG. 1 is a top view showing a schematic configuration example of a structure manufacturing apparatus; FIG. It is a figure for demonstrating the relationship between a structure manufacturing apparatus and a mount. It is the figure which showed the hardware structural example of a control apparatus. It is the figure which showed the functional structural example of a control apparatus. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure for demonstrating a structure, (a) is a perspective view which showed the structural example of the semi-finished product, (b) is a perspective view which showed the structural example of a finished product. (a), (b) is a figure for demonstrating the relationship between a mount and a base material. 4 is a flow chart for explaining a basic manufacturing process of a finished product; 10(a) to 10(f) are diagrams for explaining the state of the base material and the like in each step shown in FIG. 9. FIG. (a) to (c) are diagrams for explaining the details of the lamination process. FIG. 10 is a flow chart for explaining a manufacturing process when two finished products are manufactured in parallel using a structure manufacturing apparatus; FIG. (a) to (m) are diagrams for explaining the state in each process when two finished products are manufactured in parallel. 4 is a flowchart for explaining a monitoring process that is executed in parallel with the manufacturing process of finished products; (a) to (c) are diagrams for explaining a first modification of the structure manufacturing apparatus. (a), (b) is a figure for demonstrating the 2nd modification of a structure manufacturing apparatus. (a) to (c) are diagrams for explaining a third modification of the structure manufacturing apparatus.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[Metal Additive Manufacturing System]
FIG. 1 is a diagram showing a schematic configuration example of a metal additive manufacturing system 1 according to an embodiment of the present invention.
A metal additive manufacturing system 1 of the present embodiment includes a structure manufacturing apparatus 10 that manufactures a structure (details will be described later), and a base material (details will be described later) that constitutes the structure. A gantry conveying device 60 that conveys the gantry 40 and a control device 80 that controls the operations of the structure manufacturing apparatus 10 and the gantry conveying device 60 are provided. Here, FIG. 1 illustrates a case where the metal additive manufacturing system 1 has a plurality of pedestals 40 .

Now, each of the structure manufacturing apparatus 10, the gantry conveying apparatus 60, and the control apparatus 80 that constitute the metal additive manufacturing system 1 will be described.

(Structure manufacturing equipment)
FIG. 2 is a perspective view showing a schematic configuration example of the structure manufacturing apparatus 10 shown in FIG. 3 is a top view showing a schematic configuration example of the structure manufacturing apparatus 10 shown in FIG. The configuration of the structure manufacturing apparatus 10 will be described below with reference to FIGS. 2 and 3 in addition to FIG.

The structure manufacturing apparatus 10 includes a waiting room 11 , a stacking room 12 , a processing room 13 and an inspection room 14 . These waiting room 11, stacking room 12, processing room 13, and inspection room 14 are configured as rooms partitioned by having a floor, a ceiling, and side walls provided therebetween. In this example, the waiting room 11 is on the lower left side of FIG. are respectively arranged in an array of 2 rows×2 columns.

The structure manufacturing apparatus 10 also includes an external shutter 20 , a first internal shutter 21 , a second internal shutter 22 , a third internal shutter 23 and a fourth internal shutter 24 . The outer shutter 20, the first inner shutter 21, the second inner shutter 22, the third inner shutter 23 and the fourth inner shutter 24 are mounted on the side wall of the structure manufacturing apparatus 10 so that they can be opened and closed in the vertical direction. installed. The outer shutter 20, the first inner shutter 21, the second inner shutter 22, the third inner shutter 23 and the fourth inner shutter 24 are configured so that they can be opened and closed independently. Here, the external shutter 20 is installed at the boundary between the outside of the structure manufacturing apparatus 10 and the waiting room 11 . Also, the first internal shutter 21 is installed at the boundary between the standby chamber 11 and the stacking chamber 12 . Furthermore, the second internal shutter 22 is installed at the boundary between the stacking chamber 12 and the processing chamber 13 . Furthermore, the third internal shutter 23 is installed at the boundary between the processing chamber 13 and the inspection chamber 14 . A fourth internal shutter 24 is installed at the boundary between the examination room 14 and the waiting room 11 . In this embodiment, each of the standby chamber 11, the stacking chamber 12, the processing chamber 13, and the inspection chamber 14 that constitute the structure manufacturing apparatus 10 has a so-called explosion-proof structure. For this reason, the external shutter 20 and the first to fourth internal shutters 21 to 24 are also of so-called explosion-proof specifications. The floors, ceilings, and side walls of the waiting room 11, the stacking room 12, the processing room 13, and the inspection room 14 are each made of fireproof material.

Further, the structure manufacturing apparatus 10 includes a layered manufacturing apparatus 12a, a processing apparatus 13a, and an inspection apparatus 14a. Here, the laminate molding apparatus 12a is installed in the laminate chamber 12, the processing apparatus 13a is installed in the processing chamber 13, and the inspection apparatus 14a is installed in the inspection room 14, respectively.

Furthermore, the structure manufacturing apparatus 10 includes a waiting room concentration measuring unit 11b, a stacking room concentration measuring unit 12b, a processing room concentration measuring unit 13b, and an inspection room concentration measuring unit 14b. Here, the waiting room concentration measuring part 11b is in the waiting room 11, the lamination room concentration measuring part 12b is in the laminating room 12, the processing room concentration measuring part 13b is in the processing room 13, and the inspection room concentration measuring part 14b is in the inspection room. Each of them is installed in the chamber 14 .

Here, in the present embodiment, the stacking chamber 12 is an example of a first room, the processing chamber 13 is an example of a second room, and the inspection room 14 is an example of a third room. Further, in the present embodiment, the layered manufacturing apparatus 12a is an example of forming means, the processing apparatus 13a is an example of processing means, and the inspection apparatus 14a is an example of inspection means. Furthermore, in the present embodiment, the first internal shutter 21, the second internal shutter 22, the third internal shutter 23, and the fourth internal shutter 24 are examples of opening/closing means. Furthermore, in the present embodiment, the lamination chamber concentration measurement unit 12b, the processing chamber concentration measurement unit 13b, and the inspection chamber concentration measurement unit 14b are examples of detection means.

Next, a description will be given focusing on the relationship between each room (each room) constituting the structure manufacturing apparatus 10 and each component.
FIG. 4 is a diagram for explaining the relationship between the structure manufacturing apparatus 10 shown in FIG. 3 and the mount 40. As shown in FIG. In the following, the relationship between the structure manufacturing apparatus 10 and the mount 40 will also be described with reference to FIG. 4 in addition to FIGS.

[Waiting room]
The waiting room 11 located on the lower left side in FIG. Each is connectable. Therefore, the pedestal 40 existing in the waiting room 11 can be carried out to the outside through the external shutter 20, and can be transferred to and from the stacking room 12 through the first internal shutter 21. , and the inspection room 14 via the fourth internal shutter 24 .

In the waiting room 11, a waiting room concentration measuring unit 11b is installed.
Then, the waiting room concentration measuring unit 11b measures the concentration of the dangerous substance present in the waiting room 11. FIG. The details of the dangerous substance in this embodiment will be described later.

[Lamination room]
The stacking chamber 12 located on the upper left side in FIG. 3 can be connected to the waiting chamber 11 via the first internal shutter 21 and to the processing chamber 13 via the second internal shutter 22 . Therefore, the pedestal 40 existing in the stacking chamber 12 can be transferred to and from the waiting chamber 11 via the first internal shutter 21, and can be transferred to and from the processing chamber 13 via the second internal shutter 22. can be delivered in

Further, in the stacking chamber 12, a stacking molding apparatus 12a and a stacking chamber concentration measuring unit 12b are installed.
First, the layered manufacturing apparatus 12a forms (stacks) a layered product using a layered manufacturing method on a base material or the like placed on the pedestal 40 in the layered chamber 12 .
Here, as the lamination molding method executed by the lamination molding apparatus 12a, various known methods (material extrusion method, material injection method, powder bed fusion bonding method, binder injection method, liquid tank photopolymerization method, sheet lamination method, directed energy deposition methods, etc.) can be employed. However, in the case of this embodiment, it is a prerequisite to use a modeling material containing metal. At this time, the shape of the metal that constitutes the modeling material may be powder (metal powder) or wire (metal wire: wire). It is more desirable to apply when using a molding material containing powder. In addition, in the layered manufacturing method using a molding material containing metal, heating is usually performed during or after molding to increase the strength of the obtained layered product (integrate). Methods of heating during modeling include, for example, arc, laser, and electron beam irradiation. In the present embodiment, it is assumed that the layered manufacturing apparatus 12a adopts a layered manufacturing method (using a metal wire as a molding material and using an arc as a heat source), which is a conversion of a so-called arc welding method, as follows. Give an explanation.
Also, the stacking chamber concentration measuring unit 12b measures the concentration of the dangerous substances present in the stacking chamber 12. FIG.

[Processing room]
The processing chamber 13 positioned on the upper right side in FIG. 3 can be connected to the stacking chamber 12 through the second internal shutter 22 and to the inspection chamber 14 through the third internal shutter 23 . Therefore, the pedestal 40 existing in the processing chamber 13 can be transferred to and from the stacking chamber 12 via the second internal shutter 22, and can be transferred to and from the inspection chamber 14 via the third internal shutter 23. can be delivered in

Further, in the processing chamber 13, a processing device 13a and a processing chamber concentration measuring unit 13b are installed.
First, the processing device 13a performs processing using various processing methods on a laminate-molded object or the like formed on a base material loaded on the pedestal 40 in the processing chamber 13 .
Here, the processing methods executed by the processing device 13a include various mechanical processing, various electrical processing, various chemical processing, and the like. The processing device 13a may be one that performs only one type of processing, or one that performs a plurality of types of processing.
In addition, the processing chamber concentration measuring unit 13 b measures the concentration of dangerous substances present in the processing chamber 13 .

[Examination room]
The inspection room 14 located on the lower right side in FIG. 3 can be connected to the processing chamber 13 via the third internal shutter 23 and to the waiting room 11 via the fourth internal shutter 24, respectively. Therefore, the gantry 40 existing in the inspection room 14 can be transferred to and from the processing chamber 13 via the third internal shutter 23, and can be transferred to and from the waiting room 11 via the fourth internal shutter 24. can be delivered in

Further, in the examination room 14, an examination apparatus 14a and an examination room concentration measuring unit 14b are installed.
First, the inspection apparatus 14a uses various inspection methods for a laminate-molded article formed on a base material placed on a pedestal 40 in the inspection room 14, a workpiece obtained by processing the laminate-molded article, and the like. perform a proper inspection.
The inspection methods executed by the inspection device 14a include various mechanical inspections, various electrical inspections, various chemical inspections, and the like. Here, the inspection device 14a may be one that performs only one type of inspection, or one that performs a plurality of types of inspection.
In addition, the laboratory concentration measurement unit 14 b measures the concentration of dangerous substances present in the laboratory 14 .

[About dangerous goods]
Here, the waiting room concentration measuring unit 11b, the stacking room concentration measuring unit 12b, the processing room concentration measuring unit 13b, and the inspection room concentration measuring unit 14b provided in the structure manufacturing apparatus 10 measure the concentration. ” will be explained.

In the metal additive manufacturing system 1 of the present embodiment, as described above, a laminate-molded article is formed using a modeling material containing metal, and various processes are performed on the obtained laminate-molded article. For this reason, inside the structure manufacturing apparatus 10 , there is a risk that metal powder generated during the execution of these steps will stay in the stacking chamber 12 and the processing chamber 13 . In addition, there is a possibility that the metal powder staying in the stacking chamber 12 and the processing chamber 13 moves and stays in the waiting room 11 and the inspection room 14 when various internal shutters are opened. And such metal powder can be a factor that causes a so-called dust explosion. In particular, it is known that titanium powder, aluminum powder, magnesium powder, etc., which can be used in the additive manufacturing method, are likely to cause dust explosion. It is also known that dust explosions can occur with iron powder, stainless steel powder, and the like. Thus, metal powder can be a hazard.

For this reason, in the metal additive manufacturing system 1 of the present embodiment, the waiting room concentration measuring unit 11b, the stacking room concentration measuring unit 12b, the processing room concentration measuring unit 13b, and the inspection room concentration measuring unit 14b described above each The concentration of metal powder in the atmosphere (air in this example) is measured, and the control device 80 monitors the concentration of dangerous substances in each room based on the measurement results of these measurement units. (details will be described later).

Although not specifically described here, each of the waiting room 11, the stacking room 12, the processing room 13, and the inspection room 14 is provided with a dust collector for collecting metal powder and the like present in each room. It is desirable to keep

(Stand transport device)
The gantry transport device 60 transports (carries in and out) one or more (two in this example) gantry 40 between the outside and the inside of the structure manufacturing apparatus 10 . Further, the gantry conveying device 60 conveys the gantry 40 among the waiting room 11 , stacking room 12 , processing room 13 and inspection room 14 inside the structure manufacturing apparatus 10 .

(mounting frame)
The mount 40 has a function of loading base materials, a function of fixing the loaded base materials to itself, and a function of moving itself. The gantry 40 may be configured by a truck having wheels or the like, or may be configured without wheels or the like.

(Control device)
Next, details of the control device 80 shown in FIG. 1 will be described.
[Hardware configuration]
FIG. 5 is a diagram showing the hardware configuration of the control device 80 of this embodiment.
The control device 80 includes a CPU (Central Processing Unit) 81 that reads and executes programs such as the OS and various applications, and a ROM (Read Only Unit) that stores programs executed by the CPU 81 and data used when executing the programs. Memory) 82, and a RAM (Random Access Memory) 83 for storing data temporarily generated when the program is executed. In addition, the control device 80 includes an HDD (Hard Disk Drive) 84 that stores various programs and various data, and equipment provided outside the control device 80 (including the structure manufacturing device 10 and the gantry transport device 60). NIC (Network Interface Card) 85 for transmitting and receiving data between the I have it. The program executed by the CPU 81 provided in the control device 80 may be stored in advance in the ROM 82 or HDD 84, or may be stored in a storage medium such as a CD-ROM and provided to the CPU 81, or stored in a storage medium such as a CD-ROM. (not shown) to the CPU 81.

[Functional configuration]
FIG. 6 is a diagram showing a functional configuration example of the control device 80 of this embodiment.
The control device 80 of this embodiment has a general control section 801, a lamination control section 802, a processing control section 803, an inspection control section 804, an opening/closing control section 805, and a transport control section 806. .

{Overall control part}
An overall control unit 801 as an example of a prohibition unit controls the overall operation of the metal additive manufacturing system 1 via a lamination control unit 802, a processing control unit 803, an inspection control unit 804, an opening/closing control unit 805, and a transport control unit 806. to control. Also, in the overall control unit 801, the waiting room concentration C1 from the waiting room concentration measurement unit 11b, the stacking chamber concentration C2 from the stacking chamber concentration measurement unit 12b, and the processing chamber concentration from the processing chamber concentration measurement unit 13b C3 and laboratory dangerous substance concentration C4 are input from the laboratory concentration measuring unit 14b, respectively. The overall control unit 801 also monitors and controls whether or not the operation of the metal additive manufacturing system 1 is to be stopped in an emergency based on the concentrations of these various dangerous substances.

{Lamination control part}
The stacking control unit 802 controls the operation of the stacking device 12 a provided in the stacking chamber 12 of the structure manufacturing apparatus 10 under the control of the overall control unit 801 .

{Processing control part}
The processing control unit 803 controls the operation of the processing device 13 a provided in the processing chamber 13 of the structure manufacturing apparatus 10 under the control of the overall control unit 801 .

{Inspection control unit}
The inspection control unit 804 controls the operation of the inspection device 14 a provided in the inspection room 14 of the structure manufacturing apparatus 10 under the control of the overall control unit 801 .

{Open/close controller}
The opening/closing control unit 805 controls the operation of the external shutter 20 and the first internal shutter 21 to the fourth internal shutter 24 provided in the structure manufacturing apparatus 10 (more specifically, the opening/closing operation) under the control of the overall control unit 801. ).

{Conveyance control part}
The transport control unit 806 controls the operation of the gantry transport device 60 , that is, the transport operation of the gantry 40 under the control of the overall control unit 801 .

(Structure)
Now, the structure manufactured by the metal additive manufacturing system 1 of the present embodiment will be described here.
FIG. 7 is a diagram for explaining a configuration example of a structure according to this embodiment. Here, FIG. 7(a) is a perspective view showing a configuration example of a semi-finished product 100S as an example of a structure, and FIG. 7(b) is a configuration of a finished product 100F as another example of a structure. It is a perspective view showing an example. Here, the semi-finished product 100S shown in FIG. 7A is manufactured, for example, in the lamination chamber 12 described above using the lamination molding apparatus 12a. On the other hand, the finished product 100F shown in FIG. 7B is manufactured by processing the semi-finished product 100S using the processing device 13a in the processing chamber 13 described above, for example.

〔Semifinished product〕
First, the half-finished product 100S shown in FIG. 7A will be described.
A semi-finished product 100S of the present embodiment includes a base material 110 to be laminated, and a laminate-molded article 120 formed on the base material 110 using a molding material containing metal (here, a metal wire). .

In this example, the base material 110 is made of a metal material, has a rectangular shape (plate shape), and is arranged so that its surface faces vertically upward. In this example, the laminate-molded article 120 made of a metal material has a cylindrical shape, and is formed on the surface of the base material 110 such that the opening provided therein faces vertically upward. In the case of this example, the laminate-molded article 120 is composed of a laminate of a plurality (here, five) of beads 121 obtained using a molding material composed of metal wires. More specifically, the laminate-molded article 120 of this example includes a first-layer bead 121(1) laminated on the base material 110 and a second-layer bead 121(1) laminated on the first-layer bead 121(1). The bead 121(21) of the layer, the bead 121(3) of the third layer laminated on the bead 121(2) of the second layer, and the bead 121(3) of the third layer laminated on the bead 121(3) of the third layer. It has a bead 121(4) in the fourth layer and a bead 121(5) in the fifth layer laminated on the bead 121(4) in the fourth layer.

[Finished product]
Next, the finished product 100F shown in FIG. 7(b) will be described.
The finished product 100F of the present embodiment includes the base material 110 described above and the workpiece 130 obtained by processing the laminate-molded article 120 described above. It is formed on the base material 110 .

In this example, the workpiece 130 is obtained by cutting the outer peripheral surface and the inner peripheral surface of the layered product 120 shown in FIG. At the same time, the surface of the base material 110 is formed so that the opening provided therein faces vertically upward. In the case of this example, the workpiece 130 has been subjected to the above-described cutting process, so that the unevenness on the surface of the laminate-molded article 120, which is the base of the workpiece 130, has been removed.

In this embodiment, the product shown in FIG. 7(b) is called a "finished product" for the sake of convenience. However, depending on the required specifications, the product shown in FIG. It can also be

(Relationship between mount and base material)
Next, the relationship between the mount 40 used in the metal additive manufacturing system 1 of the present embodiment and the base material 110 loaded on the mount 40 will be described.
8A and 8B are diagrams showing the relationship between the mount 40 and the base material 110. FIG. 8A shows a first relationship example, and FIG. 8B shows a second relationship example. ing.

[First example of relationship]
In the case of the first relational example shown in FIG. 8A, one base material 110 is loaded on one mount 40 . This is adopted when the area of the upper surface (loading surface) of the mount 40 is larger than the area of the lower surface (loaded surface) of the base material 110 (normal case). Then, in the state shown in FIG. 8( a ), the base material 110 is fixed on the frame 40 by a fixing jig (not shown), and is transported by the structure manufacturing apparatus 10 .

[Second example of relationship]
In the case of the second relational example shown in FIG. 8B, one base material 110 is loaded across two pedestals 40 arranged side by side. This is adopted when the area of the upper surface (loading surface) of the mount 40 is smaller than the area of the lower surface (loading surface) of the base material 110 (special case). Then, in the state shown in FIG. 8B, the base material 110 is fixed on the two mounts 40 by a fixing jig (not shown), and is provided for transportation by the structure manufacturing apparatus 10 . Although detailed description is not given here, it is also possible to attach one base material 110 to three or more pedestals 40 arranged side by side, and to transport the base material 110 in the structure manufacturing apparatus 10 . It is possible.

[Operation of metal additive manufacturing system]
Next, the operation of the metal additive manufacturing system 1 of this embodiment will be described.
In the metal additive manufacturing system 1 of the present embodiment, the control device 80 carries in the gantry 40 to the structure manufacturing apparatus 10 and carries out the gantry 40 from the structure manufacturing apparatus 10 via the gantry transport device 60. and control. At this time, the base material 110 is loaded on the frame 40 carried into the structure manufacturing apparatus 10, and the finished product 100F including the base material 110 is loaded on the frame 40 carried out from the structure manufacturing apparatus 10. is loaded. The control device 80 also controls the transportation operation of the gantry 40 in the structure manufacturing apparatus 10 via the gantry transportation device 60 . At this time, the gantry 40 moves back and forth between the waiting room 11, the stacking room 12, the processing room 13 and the inspection room 14 with the base material 110 and the like loaded thereon.

In addition, in this metal additive manufacturing system 1, the control device 80 forms the laminate-molded article 120 on the base material 110 loaded on the frame 40 and performs various processes on the laminate-molded article 120 in the structure manufacturing apparatus 10. and the inspection of the semi-finished product 100S including the base material 110 and the laminate-molded product 120 and the finished product 100F including the base material 110 and the workpiece 130. More specifically, the control device 80 controls the formation operation of the laminate-molded article 120 on the base material 110 placed on the pedestal 40 in the laminate chamber 12 using the laminate-molded apparatus 12a. The control device 80 also controls the machining of the semi-finished product 100S placed on the pedestal 40 in the processing chamber 13 using the processing device 13a, that is, the operation of manufacturing the workpiece 130. FIG. Further, the control device 80 controls the inspection operation of the semi-finished product 100S or the finished product 100F placed on the pedestal 40 in the inspection room 14 using the inspection device 14a.

[Basic manufacturing process for finished products]
Next, the manufacturing procedure of the finished product 100F shown in FIG. 7(b) using the metal additive manufacturing system 1 of the present embodiment will be described.
FIG. 9 is a flow chart for explaining the basic manufacturing process of the finished product 100F. 10A to 10F are diagrams for explaining the state of the base material 110 and the like in each step explained below. Here, in FIG. 10, illustration of the frame 40 on which the base material 110 is loaded is omitted. Note that the control described below is performed by a control device 80 provided in the metal additive manufacturing system 1 .

(Loading process)
First, a carrying-in process is carried out for carrying the gantry 40 on which the base material 110 is loaded from the outside of the structure manufacturing apparatus 10 into the inside of the structure manufacturing apparatus 10, more specifically, into the waiting room 11 (step 10 , see FIG. 10(a)).

(Lamination process)
Next, in the stacking chamber 12, the bead 121 is stacked on the base material 110 on the pedestal 40 carried into the structure manufacturing apparatus 10 by using the stacking apparatus 12a, thereby forming the layered product 120. Then, a stacking process is performed (step 20). At this time, the semi-finished product 100S shown in FIG.

(Semi-finished product inspection process)
Subsequently, a semi-finished product inspection step is performed in the inspection room 14 to inspect the semi-finished product 100S on the pedestal 40 using the inspection device 14a (step 30). At this time, the semi-finished product 100S shown in FIG.

(Processing process)
Next, the semi-finished product 100S on the pedestal 40 is processed in the processing chamber 13 using the processing device 13a to process the laminate-molded article 120 to form the workpiece 130 (step 40). At this time, the finished product 100F shown in FIG.

(Product inspection process)
Then, in the inspection room 14, the finished product inspection process is performed to inspect the finished product 100F on the pedestal 40 using the inspection device 14a (step 50). At this time, the finished product 100F continues to be loaded on the platform 40 (see FIG. 10(e)).

(Unloading process)
Finally, a carry-out step is performed to carry out the gantry 40 loaded with the finished product 100F from the inside of the structure manufacturing apparatus 10, more specifically, from the waiting room 11 to the outside of the structure manufacturing apparatus 10 (step 60). ). At this time, the finished product 100F continues to be loaded on the platform 40 (see FIG. 10(f)).
Thus, the manufacturing of the finished product 100F is completed. In addition, more detailed procedures in each step will be described later.

(Details of lamination process)
Here, a more specific description will be given of the lamination process of step 20 described above.
FIG. 11 is a diagram for explaining the details of the lamination process, that is, the procedure for forming the laminate-molded article 120 on the base material 110, in other words, the procedure for manufacturing the semifinished product 100S.

FIG. 11A is a perspective view showing a state after forming beads 121(1) of the first layer on the base material 110 based on the layer shape data of the first layer.
In this example, by driving the lamination modeling apparatus 12a using the layer shape data of the first layer, the bead 121(1) of the first layer having a substantially annular shape is formed (stacked) on the base material 110. be.

FIG. 11B is a perspective view showing a state after second-layer beads 121(2) are formed on first-layer beads 121(1) based on the second-layer layer shape data. .
In this example, by driving the layered manufacturing apparatus 12a using the layer shape data of the second layer, the bead 121(1) of the first layer having a substantially circular ring shape is placed on the bead 121(1) of the first layer having a substantially circular ring shape. of beads 121(2) are formed (laminated).

Hereinafter, although detailed description is omitted, a third-layer bead 121(3) and a fourth-layer bead 121(3) each exhibiting a substantially annular shape are formed on the second-layer bead 121(2) in the same procedure. beads 121(4) are sequentially formed (stacked).

FIG. 11(c) shows the state after forming the fifth layer bead 121(5) as the final layer on the fourth layer bead 121(4) based on the layer shape data of the fifth layer. That is, it is a perspective view showing a state after forming the laminate-molded article 120 on the base material 110 .
In this example, the fifth-layer bead 121(5) having a substantially annular shape is formed by driving the layered manufacturing apparatus 12a using the fifth-layer bead 121(5).
Through the above procedure, the semi-finished product 100S having the base material 110 and the laminate-molded article 120 is obtained.

[Specific manufacturing process for finished products]
Now, the manufacturing process of the finished product 100F in the metal additive manufacturing system 1 of the present embodiment will be described with specific examples. Here, an example will be described in which two finished products 100F are manufactured in parallel using the metal additive manufacturing system 1, that is, one structure manufacturing apparatus 10 shown in FIG.

FIG. 12 is a flow chart for explaining a manufacturing process when using the structure manufacturing apparatus 10 to manufacture two finished products 100F in parallel. Also, FIGS. 13(a) to 13(m) are diagrams for explaining the state of each process when two finished products 100F are manufactured in parallel. However, in FIG. 13, description of the external shutter 20 and the first internal shutter 21 to the fourth internal shutter 24 provided in the structure manufacturing apparatus 10 is omitted. 11 (particularly FIG. 3 and FIG. 4). Note that the two pedestals 40 used in the description are hereinafter referred to as "first pedestal A" and "second pedestal B", respectively. 12, the left side of the drawing shows the manufacturing procedure of the finished product 100F that is manufactured while being mounted on the first pedestal A, and the right side of the drawing shows the manufacturing procedure of the finished product 100F that is mounted on the second pedestal B. 100F shows the manufacturing procedure of a finished product (another finished product) 100F manufactured in the state shown in FIG. These controls are executed by the control device 80 .

(initial state)
Also, in the initial state before starting the manufacturing process, the structure manufacturing apparatus 10 is assumed to be set as described below.
First, the external shutter 20 and the first to fourth internal shutters 21 to 24 are all closed (hereinafter referred to as "closed state"). Accordingly, the waiting room 11, the stacking room 12, the processing room 13, and the inspection room 14 are all closed (hereinafter referred to as "closed state"). In addition, the lamination molding apparatus 12a provided in the lamination chamber 12, the processing apparatus 13a provided in the processing chamber 13, and the inspection apparatus 14a provided in the inspection room 14 are all in a non-operating state (hereinafter referred to as "non-operating state)). Furthermore, the waiting room 11, the stacking room 12, the processing room 13, and the inspection room 14 are all set in a state in which the pedestal 40 (the first pedestal A and the second pedestal B) is not accommodated. Therefore, both the first pedestal A and the second pedestal B are arranged outside the structure manufacturing apparatus 10 (hereinafter referred to as "outdoor"). Each of the first frame A and the second frame B is fixed with the base material 110 loaded thereon. In the following description, what is attached to the first pedestal A may be referred to as the base material 110 , and what is attached to the second pedestal B may be referred to as the other base material 110 .

(First step)
First, the first step is executed (step Sa in FIG. 12: see also FIG. 13(a)). In this first step, the first frame A on which the base material 110 is loaded is moved (carried in) from the outside into the structure manufacturing apparatus 10 .

More specifically, first, the external shutter 20 shifts from the closed state to the open state (hereinafter referred to as the “door open state”), thereby opening the waiting room 11 from the closed state. (hereinafter referred to as “open state”), and the outside of the room and the waiting room 11 are connected. In this state, the first frame A on which the base material 110 is loaded moves from the outside into the waiting room 11 . In this state, the external shutter 20 shifts from the open state to the closed state, whereby the waiting room 11 shifts from the open state to the closed state.

As a result, when the first step is finished, the first frame A on which the base material 110 is loaded is accommodated in the closed standby chamber 11 .

(Second step)
Following the first step, the second step is performed (step Sb in FIG. 12: see also FIG. 13(b)). In this second step, the first frame A on which the base material 110 is loaded and which is housed in the waiting room 11 is moved from the waiting room 11 to the stacking room 12 .

More specifically, when the first internal shutter 21 shifts from the closed state to the open state, both the waiting room 11 and the stacking room 12 shift from the closed state to the open state. are communicated and connected. In this state, the first frame A loaded with the base material 110 moves from the waiting room 11 to the stacking room 12 . In this state, the first internal shutter 21 shifts from the open state to the closed state, so that both the waiting chamber 11 and the stacking chamber 12 shift from the open state to the closed state.

As a result, when the second step is completed, the first pedestal A on which the base material 110 is loaded is accommodated in the closed stacking chamber 12 .

(Third step)
Following the second step, the third step is performed (step Sc in FIG. 12: see also FIG. 13(c)). In the third step, a laminate-molded article 120 is formed on the base material 110 loaded on the first frame A housed in the laminate chamber 12 . Also, in the third step, the second frame B on which the other base material 110 is loaded is moved (carried in) from the outside into the interior of the structure manufacturing apparatus 10 .

More specifically, first, in the stacking chamber 12, the laminate molding apparatus 12a shifts from a non-operating state to an operating state (hereinafter referred to as an "operating state"). In this state, the layered manufacturing apparatus 12a forms a layered product 120 by sequentially stacking a plurality of beads 121 on the base material 110 loaded on the first frame A. FIG. During this time, both the first internal shutter 21 and the second internal shutter 22 provided in the stacking chamber 12 are kept closed, and as a result, the stacking chamber 12 is kept closed. Then, when the laminate-molded article 120 is completely formed, the laminate-molded apparatus 12a shifts from the operating state to the non-operating state. As a result, the first frame A housed in the stacking chamber 12 is in a state where the semifinished product 100S including the base material 110 and the layered product 120 is loaded.

In parallel with this, the external shutter 20 shifts from the closed state to the open state, the waiting room 11 shifts from the closed state to the open state, and the outside and the waiting room 11 are connected. In this state, the second frame B loaded with another base material 110 moves from the outside into the waiting room 11 . In this state, the external shutter 20 shifts from the open state to the closed state, and the waiting room 11 shifts from the open state to the closed state.

As a result, when the third step is finished, the stacking chamber 12 in the closed state accommodates the first pedestal A on which the semifinished product 100S is loaded. Also, in the waiting room 11, which is also in a closed state, a second frame B on which another base material 110 is loaded is accommodated.

(Fourth step)
Following the third step, the fourth step is performed (step Sd in FIG. 12; see also FIG. 13(d)). In this fourth step, the first frame A on which the semi-finished product 100S is loaded is moved from the stacking chamber 12 to the inspection chamber 14 via the processing chamber 13 . Also, in this fourth step, the second pedestal B loaded with the other base material 110 stored in the waiting room 11 is moved from the waiting room 11 to the stacking room 12 .

More specifically, when the second internal shutter 22 shifts from the closed state to the open state, both the stacking chamber 12 and the processing chamber 13 shift from the closed state to the open state. are communicated and connected. In this state, the first frame A on which the semifinished product 100S is loaded moves from the stacking chamber 12 to the processing chamber 13 . In this state, the second internal shutter 22 shifts from the open state to the closed state, so that both the stacking chamber 12 and the processing chamber 13 shift from the open state to the closed state. During this time, the second gantry B on which the other base material 110 is loaded maintains the state of being accommodated in the closed waiting room 11 .

Next, as the third internal shutter 23 shifts from the closed state to the open state, both the processing chamber 13 and the inspection chamber 14 shift from the closed state to the open state, and both are communicated and connected. state. In this state, the first frame A on which the semi-finished product 100S is loaded moves from the processing chamber 13 to the inspection chamber 14 . In this state, the third internal shutter 23 shifts from the open state to the closed state, so that both the processing chamber 13 and the inspection chamber 14 shift from the open state to the closed state.

In parallel with this, the first internal shutter 21 shifts from the closed state to the open state, so that both the waiting chamber 11 and the stacking chamber 12 shift from the closed state to the open state. are communicated and connected. In this state, the second frame B loaded with another base material 110 moves from the waiting room 11 to the stacking room 12 . In this state, the first internal shutter 21 shifts from the open state to the closed state, so that both the waiting chamber 11 and the stacking chamber 12 shift from the open state to the closed state.

As a result, when the fourth step is completed, the inspection room 14 in the closed state accommodates the first gantry A on which the semifinished product 100S is loaded. Also, in the stacking chamber 12, which is also in the closed state, the second pedestal B on which another base material 110 is loaded is accommodated.

(Fifth step)
Following the fourth step, the fifth step is performed (step Se in FIG. 12; see also FIG. 13(e)). In this fifth step, the laminate-molded article 120 is inspected (first time) with respect to the semi-finished product 100S loaded on the first pedestal A housed in the inspection room 14 . In addition, in the fifth step, another laminate-molded article 120 is formed on another base material 110 loaded on the second frame B housed in the laminate chamber 12 .

More specifically, first, in the inspection room 14, the inspection device 14a shifts from the non-operating state to the operating state. In this state, the inspection device 14a performs a predetermined inspection (semi-finished product inspection) on the laminate-molded article 120 in the semi-finished product 100S loaded on the first frame A. During this time, both the third internal shutter 23 and the fourth internal shutter 24 provided in the examination room 14 are set to the closed state, and as a result, the examination room 14 is maintained in the closed state. Then, when the inspection of the laminate-molded article 120 is completed, the inspection device 14a shifts from the operating state to the non-operating state. At this time, not only the laminate-molded article 120 but also the entire semi-finished product 100S including the base material 110 may be inspected.

In parallel with this, in the stacking chamber 12, the layered manufacturing apparatus 12a shifts from the non-operating state to the operating state. In this state, the layered manufacturing apparatus 12a forms another layered product 120 by sequentially layering a plurality of other beads 121 on the other base material 110 loaded on the second frame B. During this time, both the first internal shutter 21 and the second internal shutter 22 provided in the stacking chamber 12 are kept closed, and as a result, the stacking chamber 12 is kept closed. Then, when the laminate-molded article 120 is completely formed, the laminate-molded apparatus 12a shifts from the operating state to the non-operating state. As a result, the second pedestal B accommodated in the stacking chamber 12 is in a state where another semi-finished product 100S having another base material 110 and another layered product 120 is loaded.

As a result, when the fifth step is completed, the inspection room 14 in the closed state accommodates the first gantry A on which the semi-finished products 100S that have been inspected are loaded. In addition, the stacking chamber 12 in the same closed state accommodates the second pedestal B on which the other semi-finished product 100S is loaded.

(6th step)
Following the fifth step, the sixth step is performed (step Sf in FIG. 12; see also FIG. 13(f)). In the sixth step, the first frame A loaded with the inspected semi-finished products 100S stored in the inspection room 14 is transferred from the inspection room 14 to the processing room 13 via the waiting room 11 and stacking room 12. move. Also, in this sixth step, the second frame B loaded with the other base material 110 stored in the stacking chamber 12 is moved from the stacking chamber 12 to the inspection chamber 14 via the processing chamber 13 .

More specifically, when the fourth internal shutter 24 shifts from the closed state to the open state, both the inspection room 14 and the waiting room 11 shift from the closed state to the open state. are communicated and connected. In this state, the first gantry A loaded with inspected semi-finished products 100S is moved from the inspection room 14 to the waiting room 11 . In this state, the fourth internal shutter 24 shifts from the open state to the closed state, so that both the inspection room 14 and the waiting room 11 shift from the open state to the closed state.

In parallel with this, the second internal shutter 22 shifts from the closed state to the open state, so that both the stacking chamber 12 and the processing chamber 13 shift from the closed state to the open state. It will be in a state of being communicated and connected. In this state, the second gantry B loaded with the other semi-finished product 100S moves from the loading chamber 12 to the processing chamber 13 . In this state, the second internal shutter 22 shifts from the open state to the closed state, so that both the stacking chamber 12 and the processing chamber 13 shift from the open state to the closed state.

As a result, at this point, the waiting room 11, which is in a closed state, is loaded with the inspected semi-finished product 100S, and the processing chamber 13, which is also in a closed state, is loaded with another semi-finished product 100S. The second pedestal B is in a state of being accommodated.

Next, when the first internal shutter 21 shifts from the closed state to the open state, both the standby chamber 11 and the stacking chamber 12 shift from the closed state to the open state, and both are communicated and connected. state. In this state, the first gantry A loaded with inspected semi-finished products 100S is moved from the waiting room 11 to the stacking room 12 . In this state, the first internal shutter 21 shifts from the open state to the closed state, so that both the waiting chamber 11 and the stacking chamber 12 shift from the open state to the closed state.

In parallel with this, the third internal shutter 23 shifts from the closed state to the open state, so that both the processing chamber 13 and the inspection chamber 14 shift from the closed state to the open state. It will be in a state of being communicated and connected. In this state, the second frame B loaded with the semi-finished product 100S moves from the processing chamber 13 to the inspection chamber 14 . In this state, the third internal shutter 23 shifts from the open state to the closed state, so that both the processing chamber 13 and the inspection chamber 14 shift from the open state to the closed state.

As a result, at this point in time, the stacking chamber 12, which is in a closed state, is loaded with the first frame A loaded with the inspected semi-finished product 100S, and the inspection chamber 14, which is also in a closed state, is loaded with another semi-finished product 100S. The second pedestal B is in a state of being accommodated.

Subsequently, the second internal shutter 22 shifts from the closed state to the open state, so that both the stacking chamber 12 and the processing chamber 13 shift from the closed state to the open state, and both are communicated and connected. state. In this state, the first gantry A loaded with inspected semi-finished products 100S moves from the stacking chamber 12 to the processing chamber 13 . In this state, the second internal shutter 22 shifts from the open state to the closed state, so that both the stacking chamber 12 and the processing chamber 13 shift from the open state to the closed state. During this time, the second gantry B on which the other semi-finished product 100S is loaded remains installed in the closed inspection room 14 .

As a result, when the sixth step is completed, the processing chamber 13, which is in a closed state, accommodates the first pedestal A on which the inspected semi-finished products 100S are loaded. Also, the inspection room 14, which is also in the closed state, accommodates the second pedestal B on which the other semi-finished product 100S is loaded.

(Seventh step)
Following the sixth step, the seventh step is performed (step Sg in FIG. 12: see also FIG. 13(g)). In the seventh step, the inspected semi-finished product 100S loaded on the first pedestal A housed in the processing chamber 13 is processed into the laminate-molded article 120 . In addition, in the seventh step, another laminate-molded article 120 is inspected (first time) with respect to another semi-finished product 100S loaded on the second pedestal B housed in the inspection room 14 .

More specifically, first, in the processing chamber 13, the processing device 13a shifts from the non-operating state to the operating state. In this state, the processing device 13a performs predetermined processing (mechanical processing) on the laminate-molded product 120 in the inspected semi-finished product 100S loaded on the first frame A. During this time, both the second internal shutter 22 and the third internal shutter 23 provided in the processing chamber 13 are set to the closed state, and as a result, the processing chamber 13 is maintained in the closed state. When the laminate-molded article 120 is processed, that is, the workpiece 130 is formed, the processing apparatus 13a shifts from the operating state to the non-operating state. In addition, in the seventh step, not only the laminate-molded article 120 but also the base material 110 may be processed. As a result, the first frame A accommodated in the processing chamber 13 is in a state where the finished product 100F including the base material 110 and the workpiece 130 is loaded.

In parallel with this, in the inspection room 14, the inspection device 14a is shifted from the non-operating state to the operating state. In this state, the inspection device 14a performs a predetermined inspection (semi-finished product inspection) on the other laminate-molded product 120 in the other semi-finished product 100S loaded on the second frame B. During this time, both the third internal shutter 23 and the fourth internal shutter 24 provided in the examination room 14 are set to the closed state, and as a result, the examination room 14 is maintained in the closed state. Then, when the inspection of another laminate-molded article 120 is completed, the inspection device 14a shifts from the operating state to the non-operating state. At this time, not only the other laminate-molded article 120 but also the whole other half-finished product 100S including the other base material 110 may be inspected.

As a result, when the seventh step is completed, the processing chamber 13 in the closed state accommodates the first pedestal A on which the finished product 100F is loaded. Also, the inspection room 14, which is also in a closed state, accommodates the second pedestal B on which the other half-finished product 100S that has been inspected is loaded.

(8th step)
Following the seventh step, the eighth step is performed (step Sh in FIG. 12; see also FIG. 13(h)). In this eighth step, the first gantry A loaded with the finished product 100</b>F, which is accommodated in the processing chamber 13 , is moved from the processing chamber 13 to the inspection chamber 14 . Further, in this eighth step, the second pedestal B loaded with other semi-finished products 100S that have been inspected, which is housed in the inspection room 14, is processed from the inspection room 14 through the waiting room 11 and the stacking room 12. Move to room 13.

More specifically, when the fourth internal shutter 24 shifts from the closed state to the open state, both the inspection room 14 and the waiting room 11 shift from the closed state to the open state. are communicated and connected. In this state, the second gantry B loaded with other semi-finished products 100S that have been inspected moves from the inspection room 14 to the waiting room 11 . In this state, the fourth internal shutter 24 shifts from the open state to the closed state, so that both the inspection room 14 and the waiting room 11 shift from the open state to the closed state. During this time, the first pedestal A on which the finished product 100F is loaded maintains the state of being housed in the processing chamber 13 which is in the closed state.

As a result, at this point in time, the first frame A loaded with the finished product 100F is loaded in the processing chamber 13, which is in the closed state, and the other inspected semi-finished product 100S is loaded in the standby chamber 11, which is also in the closed state. The second pedestal B is in a state of being accommodated.

Next, as the third internal shutter 23 shifts from the closed state to the open state, both the processing chamber 13 and the inspection chamber 14 shift from the closed state to the open state, and both are communicated and connected. state. In this state, the first frame A loaded with the finished product 100F is moved from the processing chamber 13 to the inspection chamber 14 . In this state, the third internal shutter 23 shifts from the open state to the closed state, so that both the processing chamber 13 and the inspection chamber 14 shift from the open state to the closed state.

In parallel with this, the first internal shutter 21 shifts from the closed state to the open state, so that both the waiting chamber 11 and the stacking chamber 12 shift from the closed state to the open state. It will be in a state of being communicated and connected. In this state, the second gantry B on which the inspected semi-finished product 100S is loaded moves from the waiting room 11 to the stacking room 12 . In this state, the first internal shutter 21 shifts from the open state to the closed state, so that both the waiting chamber 11 and the stacking chamber 12 shift from the open state to the closed state.

As a result, at this point, the inspection room 14, which is in a closed state, is loaded with the first frame A loaded with the finished product 100F, and the loading chamber 12, which is also in a closed state, is loaded with another inspected semi-finished product 100S. The second pedestal B is in a state of being accommodated.

Subsequently, the second internal shutter 22 shifts from the closed state to the open state, so that both the stacking chamber 12 and the processing chamber 13 shift from the closed state to the open state, and both are communicated and connected. state. In this state, the second gantry B loaded with the inspected semi-finished product 100S is moved from the stacking chamber 12 to the processing chamber 13 . In this state, the second internal shutter 22 shifts from the open state to the closed state, so that both the stacking chamber 12 and the processing chamber 13 shift from the open state to the closed state. During this time, the first gantry A on which the finished product 100F is loaded maintains the state of being accommodated in the inspection room 14 in the closed state.

As a result, when the eighth step is completed, the inspection chamber 14 in the closed state accommodates the first gantry A loaded with the finished product 100F. Also, the processing chamber 13, which is also in a closed state, accommodates a second frame B on which another half-finished product 100S that has been inspected is loaded.

(9th step)
Following the eighth step, the ninth step is performed (step Si in FIG. 12: see also FIG. 13(i)). In this ninth step, the workpiece 130 is inspected (second time) with respect to the finished product 100F loaded on the first frame A housed in the inspection room 14 . Further, in the ninth step, another laminate-molded product 120 is processed on another inspected semi-finished product 100S loaded on the second pedestal B housed in the processing chamber 13 .

More specifically, first, in the inspection room 14, the inspection device 14a shifts from the non-operating state to the operating state. In this state, the inspection device 14a performs a predetermined inspection (finished product inspection) on the workpiece 130 in the finished product 100F loaded on the first frame A. During this time, both the third internal shutter 23 and the fourth internal shutter 24 provided in the examination room 14 are set to the closed state, and as a result, the examination room 14 is maintained in the closed state. Then, when the inspection of the workpiece 130 is completed, the inspection device 14a shifts from the operating state to the non-operating state. At this time, not only the workpiece 130 but also the entire finished product 100F including the base material 110 may be inspected.

In parallel with this, in the processing chamber 13, the processing device 13a shifts from the non-operating state to the operating state. In this state, the processing device 13a performs predetermined processing (mechanical processing) on the other laminate-molded product 120 in the other inspected semi-finished product 100S loaded on the second frame B. During this time, both the second internal shutter 22 and the third internal shutter 23 provided in the processing chamber 13 are set to the closed state, and as a result, the processing chamber 13 is maintained in the closed state. Then, when the processing of the other laminate-molded article 120, that is, the formation of the other workpiece 130 is completed, the processing device 13a shifts from the operating state to the non-operating state. In addition, in the ninth step, not only the laminate-molded article 120 but also the base material 110 may be processed. As a result, the second frame B accommodated in the processing chamber 13 is in a state where another finished product 100F including another base material 110 and another workpiece 130 is loaded.

As a result, when the ninth step is completed, the inspection room 14 in the closed state accommodates the first frame A on which the inspected finished product 100F is loaded. Also, in the processing chamber 13, which is also in a closed state, a second pedestal B loaded with another finished product 100F is accommodated.

(Tenth step)
Following the ninth step, the tenth step is performed (step Sj in FIG. 12; see also FIG. 13(j)). In the tenth step, the first gantry A on which the inspected finished product 100</b>F is loaded and stored in the inspection room 14 is moved from the inspection room 14 to the waiting room 11 . Also, in the tenth step, the second pedestal B loaded with another finished product 100</b>F stored in the processing chamber 13 is moved from the processing chamber 13 to the inspection chamber 14 .

More specifically, when the fourth internal shutter 24 shifts from the closed state to the open state, both the inspection room 14 and the waiting room 11 shift from the closed state to the open state. are communicated and connected. In this state, the first gantry A on which the inspected finished product 100F is loaded moves from the inspection room 14 to the waiting room 11 . In this state, the fourth internal shutter 24 shifts from the open state to the closed state, so that both the inspection room 14 and the waiting room 11 shift from the open state to the closed state. During this time, the second pedestal B loaded with the other finished product 100F remains installed in the closed processing chamber 13 .

As a result, at this point in time, the first frame A loaded with the inspected finished product 100F is loaded in the closed waiting room 11, and the other finished product 100F is loaded in the processing chamber 13, which is also closed. The second pedestal B is in a state of being accommodated.

Next, as the third internal shutter 23 shifts from the closed state to the open state, both the processing chamber 13 and the inspection chamber 14 shift from the closed state to the open state, and both are communicated and connected. state. In this state, the second frame B loaded with another finished product 100F is moved from the processing chamber 13 to the inspection chamber 14 . In this state, the third internal shutter 23 shifts from the open state to the closed state, so that both the processing chamber 13 and the inspection chamber 14 shift from the open state to the closed state. During this time, the first gantry B on which the inspected finished product 100F is loaded remains installed in the waiting room 11 in the closed state.

As a result, when the tenth step is completed, the waiting room 11 in the closed state accommodates the first gantry A loaded with the inspected finished product 100F. Also, the inspection room 14, which is also in a closed state, accommodates the second pedestal B on which another finished product 100F is loaded.

(Eleventh step)
Following the tenth step, the eleventh step is performed (step Sk in FIG. 12: see also FIG. 13(k)). In the eleventh step, the first frame A loaded with the inspected finished product 100F stored in the waiting room 11 is moved (carried out) from the waiting room 11 to the outside of the structure manufacturing apparatus 10 . In addition, in the eleventh step, another workpiece 130 is inspected (second time) with respect to another finished product 100F loaded on the second frame B housed in the inspection room 14 .

More specifically, first, the external shutter 20 shifts from the closed state to the open state, the waiting room 11 shifts from the closed state to the open state, and the waiting room 11 and the outside are connected. In this state, the first gantry A on which the inspected finished product 100F is loaded moves from the interior of the waiting room 11 to the exterior. In this state, the external shutter 20 shifts from the open state to the closed state, and the waiting room 11 shifts from the open state to the closed state.

In parallel with this, in the inspection room 14, the inspection device 14a is shifted from the non-operating state to the operating state. In this state, the inspection device 14a performs a predetermined inspection (finished product inspection) on the other workpiece 130 in the other finished product 100F loaded on the second frame B. FIG. During this time, both the third internal shutter 23 and the fourth internal shutter 24 provided in the examination room 14 are set to the closed state, and as a result, the examination room 14 is maintained in the closed state. Then, when the inspection of the other workpiece 130 is completed, the inspection device 14a shifts from the operating state to the non-operating state. At this time, not only the other workpiece 130 but also the whole other finished product 100F including the other base material 110 may be inspected.

As a result, when the eleventh step is completed, the first frame A on which the inspected finished product 100F is loaded is discharged to the outside of the structure manufacturing apparatus 10 . In addition, the inspection room 14 in the closed state accommodates another finished product 100F that has already been inspected.

(12th step)
Following the eleventh step, the twelfth step is performed (step Sl in FIG. 12: see also FIG. 13(l)). In the twelfth step, the second pedestal B loaded with another inspected finished product 100F stored in the inspection room 14 is moved from the inspection room 14 into the waiting room 11 . In addition, below, description about the 1st mount frame A already carried out is abbreviate|omitted.

More specifically, when the fourth internal shutter 24 shifts from the closed state to the open state, both the inspection room 14 and the waiting room 11 shift from the closed state to the open state. are communicated and connected. In this state, the second gantry B loaded with another inspected finished product 100F is moved from the inspection room 14 to the waiting room 11 . In this state, the fourth internal shutter 24 shifts from the open state to the closed state, so that both the inspection room 14 and the waiting room 11 shift from the open state to the closed state.

As a result, when the twelfth step is completed, the waiting room 11 in the closed state accommodates the second pedestal B loaded with another finished product 100F that has been inspected.

(13th step)
Following the 12th step, the 13th step is performed (step Sm in FIG. 12: see also FIG. 13(m)). In the thirteenth step, the second gantry B loaded with another inspected finished product 100F stored in the waiting room 11 is moved (unloaded) from the waiting room 11 to the outside of the structure manufacturing apparatus 10. Let

More specifically, first, the external shutter 20 shifts from the closed state to the open state, and the waiting room 11 shifts from the closed state to the open state. In this state, the second gantry B loaded with another inspected finished product 100F is moved from the interior of the waiting room 11 to the exterior. In this state, the external shutter 20 shifts from the open state to the closed state, and the waiting room 11 shifts from the open state to the closed state.

As described above, the manufacturing of the two finished products 100F using the two frames A and B by the structure manufacturing apparatus 10 is completed.

[Supervision process in the manufacturing of finished products]
In the metal additive manufacturing system 1 of the present embodiment, the finished product 100F is manufactured through the semi-finished product 100S according to the procedure described above. In addition, in the metal additive manufacturing system 1 of the present embodiment, during the manufacturing of the finished product 100F, in parallel with the manufacturing process of the finished product 100F, hazardous materials in each room constituting the structure manufacturing apparatus 10 are removed. Conduct concentration monitoring.

FIG. 14 is a flow chart for explaining the monitoring process that is executed in parallel with the manufacturing process of the finished product 100F. Note that the control device 80 also executes these controls.

When the manufacturing operation of the finished product 100F using the structure manufacturing apparatus 10 is started (step 110), the overall control unit 801 first detects the concentration measured by the waiting room concentration measuring unit 11b installed in the waiting room 11. A room dangerous substance concentration C1 is obtained (step 120). Subsequently, the overall control unit 801 determines whether or not the waiting room dangerous substance concentration C1 acquired in step 120 is equal to or higher than the reference concentration C0, which is a predetermined reference value (C1≧C0) ( step 130). If an affirmative determination (Yes) is made in step 130, the process proceeds to step 220, which will be described later.

On the other hand, if a negative determination (No) is made in step 130, the overall control unit 801 next acquires the stacking chamber dangerous substance concentration C2 measured by the stacking chamber concentration measurement unit 12b installed in the stacking chamber 12. (step 140). Subsequently, the general control unit 801 determines whether or not the stacking chamber dangerous substance concentration C2 acquired in step 140 is equal to or higher than the reference concentration C0 (C2≧C0) (step 150). If an affirmative determination (Yes) is made in step 150, the process proceeds to step 220, which will be described later.

On the other hand, if a negative determination (No) is made in step 150, then the overall control unit 801 acquires the processing chamber dangerous substance concentration C3 measured by the processing chamber concentration measuring unit 13b installed in the processing chamber 13. (step 160). Subsequently, the general control unit 801 determines whether or not the processing chamber dangerous substance concentration C3 acquired in step 160 is equal to or higher than the reference concentration C0 (C3≧C0) (step 170). If an affirmative determination (Yes) is made in step 170, the process proceeds to step 220, which will be described later.

On the other hand, if a negative determination (No) is made in step 170, then the general control unit 801 acquires the laboratory dangerous substance concentration C4 measured by the laboratory concentration measurement unit 14b installed in the laboratory 14. (step 180). Subsequently, the general control unit 801 determines whether or not the laboratory dangerous substance concentration C4 obtained in step 180 is equal to or higher than the reference concentration C0 (C4≧C0) (step 190). If an affirmative determination (Yes) is made in step 190, the process proceeds to step 220, which will be described later.

On the other hand, if a negative determination (No) is made in step 190, the overall control section 801 determines whether or not the manufacturing work of 100F using the structure manufacturing apparatus 10 has ended (step 200). If a negative determination (No) is made in step 200, the process returns to step 120 to continue processing.

On the other hand, if an affirmative determination (Yes) is made in step 200, the overall control unit 801 normally stops the operation of each unit that configures the metal additive manufacturing system 1, and executes the "manufacturing work normal stop operation" (step 210). At this time, the overall control unit 801 normally stops the operation of the lamination molding apparatus 12a via the lamination control unit 802, normally stops the operation of the processing apparatus 13a via the processing control unit 803, and the inspection control unit 804 to normally stop the operation of the inspection device 14a. At this time, the overall control unit 801 normally stops the operations of the external shutter 20 and the first to fourth internal shutters 21 to 24 via the opening/closing control unit 805, and transports the frame via the transport control unit 806. Operation of device 60 is normally stopped. However, in the state in which the manufacturing work of the finished product 100F is completed (the state in which affirmative determination is made in step 200), the lamination molding apparatus 12a, the processing apparatus 13a, the inspection apparatus 14a, and the gantry conveying apparatus 60 operate as described above. , have already stopped working respectively. In addition, when the product manufacturing work is finished, the external shutter 20 and the first internal shutter 21 to the fourth internal shutter 24 have already stopped their respective operations as described above, and they are all closed. It has become.

On the other hand, if a negative determination (No) is made in any of step 130, step 150, step 170, and step 190, the overall control unit 801 controls the operation of each unit constituting the metal additive manufacturing system 1. The "manufacturing work emergency stop operation" for emergency stop is executed (step 220). At this time, the overall control unit 801 urgently stops the operation of the lamination molding apparatus 12a via the lamination control unit 802, emergencyly stops the operation of the processing apparatus 13a via the processing control unit 803, and the inspection control unit 804. to stop the operation of the inspection device 14a. At this time, the overall control unit 801 normally stops the operations of the external shutter 20 and the first to fourth internal shutters 21 to 24 via the opening/closing control unit 805, and transports the frame via the transport control unit 806. Operation of device 60 is normally stopped. However, at this time, the transfer control unit 806 controls all the pedestals 40 existing in the structure manufacturing apparatus 10 to be accommodated in any one of the waiting room 11, the stacking room 12, the processing room 13, and the inspection room 14. Control the transport of the gantry 40 (so as not to stop across two rooms). Also, at this time, the transport control unit 806 controls the transport of the gantry 40 so that the number of the gantry 40 accommodated in one room is one or less (so that a plurality of gantry 40 is not installed in one room). do. At this time, the opening/closing control unit 805 also controls the external shutter 20 and the first internal shutters 21 to 24 to stop after all of the external shutter 20 and the first internal shutters 21 to 24 are closed. It controls the operation of the fourth internal shutter 24 . In addition, at this time, the opening/closing control unit 805 controls the operation of the outside after all the gantry 40 existing in the structure manufacturing apparatus 10 is stopped (after the gantry 40 straddling two rooms is no longer present). All of the shutter 20 and the first to fourth internal shutters 21 to 24 are shifted to the closed state.

By doing so, in the metal additive manufacturing system 1 of the present embodiment, it is possible to suppress the occurrence of a disaster such as a dust explosion in each room constituting the structure manufacturing apparatus 10 . In addition, along with the execution of the manufacturing work emergency stop operation, after the emergency stop, each room constituting the structure manufacturing apparatus 10 can be individually partitioned, so that the risk of emergency stop is further reduced. It becomes possible to let

[others]
In addition, in the description of the present embodiment, the case of monitoring metal powder as a dangerous substance has been described as an example, but the present invention is not limited to this.
For example, when a combustible gas such as hydrogen gas is used in the structure manufacturing apparatus 10, each concentration measuring unit measures the concentration of the combustible gas, and the controller 80 controls the combustible gas. You may make it monitor the operation|movement of the metal additive manufacturing system 1 based on the measurement result of the density|concentration of gas.
Further, for example, in the case of performing cutting using cutting oil in the processing chamber 13 of the structure manufacturing apparatus 10, each concentration measuring unit measures the concentration of the cutting oil, The control device 80 may monitor the operation of the metal additive manufacturing system 1 based on the measurement result of the cutting oil concentration. In the case of adopting such a configuration, a step of removing the cutting oil adhering to the workpiece is provided after executing the step of performing cutting using cutting oil in the machining chamber 13. is desirable.

Further, in the present embodiment, the reference concentration C0, which is the reference in concentration monitoring, is uniformly set, but the present invention is not limited to this.
For example, the reference concentration in the stacking chamber 12 and the processing chamber 13, in which metal powder is more likely to be generated than in the waiting room 11 and the inspection room 14, is set to be different (for example, lower) than the reference concentration in the waiting room 11 and the inspection room 14. I don't mind.

Further, in this embodiment, among the waiting room 11, the stacking room 12, the processing room 13, and the inspection room 14, which constitute the structure manufacturing apparatus 10, only the waiting room 11 is provided with an external shutter 20 for connecting to the outside. Although it was attached, it is not limited to this.
For example, the external shutters 20 may be attached to all of the waiting room 11, the stacking room 12, the processing room 13 and the inspection room . When such a configuration is adopted, for example, when the above-described emergency stop operation for manufacturing work is executed, the structure It becomes possible to directly enter the room from the outside of the manufacturing apparatus 10 .

Further, in the present embodiment, the semi-finished product 100S is manufactured by forming the laminate-molded article 120 in which a plurality of beads 121 are laminated on the base material 100 in the lamination chamber 12, and the obtained semi-finished product 100S is obtained in the inspection chamber 14. Although the inspection (half-finished product inspection) is performed on the semi-finished product 100S, the present invention is not limited to this.
For example, in the stacking chamber 12, the first layer bead 121(1) is stacked on the base material 100, and in the inspection chamber 14 where the stacking chamber 12 is moved, the first layer bead 121(1) on the base material 100 is ), and if there is no problem, the second layer bead 121(2) is stacked on the first layer bead 121(1) in the stacking chamber 12 moved from the inspection chamber 14. may be adopted. On the other hand, if there is a problem, the bead 121(1) of the first layer is cut in the processing chamber 13 moved from the inspection chamber 14, and the base material 100 is cut in the stacking chamber 12 moved from the processing chamber 13. A process of laminating the beads 121(1) of the first layer again may be employed.

Further, in the present embodiment, the four rooms (waiting room 11, stacking room 12, processing room 13 and inspection room 14) constituting the structure manufacturing apparatus 10 are integrally arranged, but the present invention is limited to this. not a thing
For example, the waiting room 11, stacking room 12, processing room 13, and inspection room 14 may be arranged with an external space between them.

Moreover, in the present embodiment, the metal additive manufacturing system 1 is used to manufacture the two finished products 100F in parallel in the same process, but the present invention is not limited to this.
For example, for the first finished product 100F, manufacture is carried out according to the above-described procedure of “carry-in” → “stacking” → “inspection of semi-finished product” → “processing” → “inspection of finished product” → “unloading”. After that, the second finished product 100F may be manufactured in the order of “carrying in”→“stacking”→“processing”→“carrying out”. Here, in the manufacture of the first finished product 100F, inspection records are kept for each of "inspection of semi-finished product" and "inspection of finished product", and the record of "inspection of semi-finished product" is stored in the second record. It is sufficient to reflect the record of the "finished product inspection" in the "processing" process of the second finished product 100F.

Further, in the present embodiment, the structure manufacturing apparatus 10 that constitutes the metal additive manufacturing system 1 is configured as shown in FIG. 3, but it is not limited to this.

(First modification)
First, in the present embodiment, the four rooms constituting the structure manufacturing apparatus 10 are arranged clockwise in FIG. However, it is not limited to this.

FIG. 15 is a diagram for explaining a first modification of the structure manufacturing apparatus 10. FIG.
Here, FIG. 15(a) is obtained by exchanging the positions of the processing chamber 13 and the inspection chamber 14 with respect to those shown in FIG. 15(b) is obtained by replacing the positions of the stacking chamber 12 and the processing chamber 13 with respect to those shown in FIG. Furthermore, FIG. 15(c) is obtained by exchanging the positions of the stacking chamber 12, the processing chamber 13 and the inspection chamber 14 with respect to the one shown in FIG.

Even when such a configuration is adopted, the semi-finished product 100S is manufactured and inspected, and the finished product 100F using the semi-finished product 100S is manufactured and inspected by procedures substantially similar to those described in the present embodiment. can be executed.

(Second modification)
Moreover, in the present embodiment, the structure manufacturing apparatus 10 is composed of four rooms (the waiting room 11, the stacking room 12, the processing room 13 and the inspection room 14), but it is not limited to this.

FIG. 16 is a diagram for explaining a second modification of the structure manufacturing apparatus 10. As shown in FIG.
Here, FIG. 16(a) illustrates a case where the structure manufacturing apparatus 10 is composed of three rooms including a stacking room 12, a processing room 13, and an inspection room 14, excluding the waiting room 11. FIG. In this example, the stacking chamber 12, the processing chamber 13, and the inspection chamber 14 are arranged in a row in order from the left side of the figure. In this example, the stacking chamber 12 is equipped with an external shutter 20 and a first internal shutter 21, the processing chamber 13 is equipped with a first internal shutter 21 and a second internal shutter 22, and the inspection chamber 14 is equipped with a second internal shutter. 22 and another external shutter 30 are attached. Therefore, in the structure manufacturing apparatus 10 shown in FIG. 16( a ), for example, the gantry 40 can be carried into the stacking chamber 12 from the outside via the external shutter 20 , and can Through the shutter 30, the gantry 40 can be carried out to the outside.

Also, in FIG. 16(b), the structure manufacturing apparatus 10 is composed of five rooms including not only the waiting room 11, the stacking room 12, the processing room 13 and the inspection room 14, but also another waiting room 15. exemplifies the case. In this example, the waiting room 11, the stacking room 12, the processing room 13, the inspection room 14, and another waiting room 15 are arranged in a row from the left side in the drawing, as in the example shown in FIG. 16(a). . Also, in this example, a fourth internal shutter 24 is attached between the examination room 14 and another waiting room 15 , and another external shutter 30 is attached to the other waiting room 15 . For this reason, in the structure manufacturing apparatus 10 shown in FIG. Through the external shutter 30, the gantry 40 can be carried out to the outside.

(Third modification)
Furthermore, in the present embodiment, the structure manufacturing apparatus 10 is provided with one stacking chamber 12, one processing chamber 13, and one inspection chamber 14, but the present invention is not limited to this.

FIG. 17 is a diagram for explaining a third modification of the structure manufacturing apparatus 10. As shown in FIG.
Here, FIG. 17A illustrates a case where the structure manufacturing apparatus 10 has two stacking chambers (stacking chamber 12 and another stacking chamber 16). Further, in this example, the structure manufacturing apparatus 10 further includes another waiting room 15, thereby exemplifying a case in which six rooms are provided. In this example, the waiting room 11, stacking room 12, processing room 13, inspection room 14, another waiting room 15 and another stacking room 16 are arranged in two rows and three columns. Also, in this example, in addition to the first internal shutter 21 to the fourth internal shutter 24, a fifth internal shutter 25, a sixth internal shutter 26 and a seventh internal shutter 27 are provided in order to connect these six rooms. is further provided. Furthermore, in this example, an external shutter 20 is attached to the waiting room 11 and another external shutter 30 is attached to another waiting room 15 .

Also, FIG. 17B illustrates a case where the structure manufacturing apparatus 10 has two processing chambers (processing chamber 13 and another processing chamber 17) and another standby chamber 15. . In this example, another processing chamber 17 is arranged at the position of another stacking chamber 16 in the structure manufacturing apparatus 10 shown in FIG. 17(a).

Furthermore, FIG. 17(c) illustrates a case where the structure manufacturing apparatus 10 has two inspection rooms (an inspection room 14 and another inspection room 18) and another standby room 15. . In this example, another inspection chamber 18 is arranged at the position of another processing chamber 17 in the structure manufacturing apparatus 10 shown in FIG. 17(b).

When these configurations are adopted, the example shown in FIG. 17(a) performs the lamination molding operation, the example shown in FIG. Each can be executed in parallel, and the production efficiency of the finished product 100F can be further improved.

Although no further detailed description will be given, if the structure manufacturing apparatus 10 is provided with at least one stacking chamber 12, one processing chamber 13, and one or more inspection chambers 14, the number of rooms and each room You may change the design as appropriate for the arrangement of

DESCRIPTION OF SYMBOLS 1... Metal additive manufacturing system, 10... Structure manufacturing apparatus, 11... Waiting room, 11b... Waiting room concentration measuring unit, 12... Stacking room, 12a... Stacking room concentration measuring unit, 12b... Stacking room concentration measuring unit, 13... Processing chamber , 13a processing apparatus 13b processing chamber concentration measuring unit 14 inspection chamber 14a inspection device 14b inspection chamber concentration measuring unit 20 external shutter 21 first internal shutter 22 second internal shutter , 23... Third inner shutter, 24... Fourth inner shutter, 40... Base, 60... Base conveying device, 80... Control device, 100S... Semi-finished product, 100F... Finished product, 110... Base material, 120... Layered product , 121 ... bead, 130 ... workpiece

Claims (8)

A laminate-molded product is formed by laminating a plurality of metal layers using a modeling material containing metal on the base material loaded on the base material, which can accommodate a base material that is loaded and moved. a first room to
a second room that can accommodate the pedestal and processes the laminate-molded article on the base material loaded on the pedestal;
a third room capable of accommodating the pedestal and inspecting the laminate-molded article on the base material mounted on the pedestal;
opening and closing means for opening and closing the doors of the first room, the second room, and the third room to communicate or close the rooms;
detection means for detecting the concentration of metal powder in the atmosphere of each of the first room, the second room, and the third room;
and prohibiting means for prohibiting communication between the rooms by the opening/closing means when the concentration of the metal powder in the atmosphere of any of the rooms exceeds a predetermined reference concentration. The prohibiting means moves the gantry between the first room and the second room when the concentration of the metal powder in any room is equal to or higher than a predetermined reference concentration; characterized by prohibiting movement of the gantry between the second room and the third room and movement of the gantry between the third room and the first room The metal additive manufacturing system according to claim 1. 3. The metal additive manufacturing system according to claim 1, wherein the reference concentration differs from room to room. 4. The metal additive manufacturing system according to any one of claims 1 to 3 , wherein there are a plurality of said mounts for loading said base material. 5. The metal additive manufacturing system according to any one of claims 1 to 4 , wherein the base material is loaded across a plurality of pedestals. It is provided in a first room that can accommodate a base material that is loaded and moved, and is formed by laminating a plurality of metal layers using a modeling material containing metal on the base material that is mounted on the base material. Forming means for forming a laminate-molded article;
A processing means provided in a second room capable of accommodating the frame and processing the laminate-molded article on the base material loaded on the frame;
an inspection means provided in a third room capable of accommodating the pedestal and inspecting the laminate-molded article on the base material loaded on the pedestal;
opening and closing means for opening and closing the doors of the first room, the second room, and the third room to communicate or close the rooms;
detection means for detecting the concentration of metal powder in the atmosphere of each of the first room, the second room, and the third room;
and prohibiting means for prohibiting communication between the rooms by the opening/closing means when the concentration of the metal powder in the atmosphere of any of the rooms exceeds a predetermined reference concentration. A laminate-molded product is formed by laminating a plurality of metal layers using a modeling material containing metal on the base material loaded on the base material, which can accommodate a base material that is loaded and moved. and the concentration of the metal powder in the atmosphere of the first room, and the atmosphere of the second room that can accommodate the pedestal and process the laminate-molded article on the base material loaded on the pedestal Obtaining the concentration of the metal powder and the concentration of the metal powder in the atmosphere of a third room that can accommodate the cradle and inspect the laminate on the base material loaded on the cradle. When,
closing the doors of the first room, the second room, and the third room when the concentration of the metal powder in the air in any of the rooms reaches or exceeds a predetermined reference concentration; and inhibiting communication between the rooms with each other. to the computer,
A laminate-molded article is formed by laminating a plurality of metal layers using a modeling material containing metal on the base material loaded on the base material, which can accommodate a base material that is loaded and moved. The concentration of the metal powder in the atmosphere of the first room and the metal in the atmosphere of the second room that can accommodate the pedestal and process the laminate-molded article on the base material loaded on the pedestal. A function of acquiring the concentration of the powder and the concentration of the metal powder in the atmosphere of a third room that can accommodate the pedestal and inspect the laminate-molded article on the base material loaded on the pedestal. ,
closing the doors of the first room, the second room, and the third room when the concentration of the metal powder in the air in any of the rooms reaches or exceeds a predetermined reference concentration; A program that realizes a function that prohibits communication between rooms with each other.

Images