• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a mobile workshop (10) for additive manufacturing, the workshop comprising a main self-supporting frame (12), a main manufacturing chamber (14), at least one main additive manufacturing machine (M1) installed in the inside the main manufacturing enclosure, a main inerting device (26), a main circulation path, and a main airlock (34), the mobile workshop also comprising at least one auxiliary manufacturing enclosure connected to the main manufacturing chamber (14), at least one auxiliary additive manufacturing machine (M2, M3) being installed in this auxiliary manufacturing chamber, the mobile workshop comprising an auxiliary self-supporting frame (112) supporting this auxiliary and independent manufacturing chamber of the main self-supporting frame (12), and an auxiliary circulation path (132) being provided in the auxiliary manufacturing chamber.
    公开号:FR3057479A1
    申请号:FR1659897
    申请日:2016-10-13
    公开日:2018-04-20
    发明作者:Jean-Pierre Nicaise
    申请人:Fives Michelin Additive Solutions SAS；
    IPC主号:
    专利说明:

    © Publication no .: 3,057,479 (to be used only for reproduction orders)
    ©) National registration number: 16 59897 ® FRENCH REPUBLIC
    NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY
    COURBEVOIE © IntCI 8 : B 22 F 3/105 (2017.01), B 22 F 3/00, B 33 Y 30/00
    A1 PATENT APPLICATION
    ©) Date of filing: 13.10.16. ® Applicant (s): FIVES MICHELIN ADDITIVE SOLU- ©) Priority: TIONS Simplified joint stock company - FR. @ Inventor (s): NICAISE JEAN-PIERRE. ©) Date of public availability of the request: 20.04.18 Bulletin 18/16. ©) List of documents cited in the report preliminary research: Refer to end of present booklet (© References to other national documents ® Holder (s): FIVES MICHELIN ADDITIVE SOLU- related: TIONS Simplified joint-stock company. ©) Extension request (s): ® Agent (s): MANUF FSE PNEUMATIQUES MICHELIN Limited partnership with shares.
    £> 4 / MOBILE MULTI-SPEAKER ADDITIVE MANUFACTURING WORKSHOP.
    FR 3 057 479 - A1 fü /) The invention relates to a mobile workshop (10) for additive manufacturing, the workshop comprising a main self-supporting frame (12), a main manufacturing enclosure (14), at least one manufacturing machine main additive (M1) installed inside the main manufacturing enclosure, a main inerting device (26), a main circulation path, and a main airlock (34), the mobile workshop also comprising at least an auxiliary manufacturing enclosure connected to the main manufacturing enclosure (14), at least one auxiliary additive manufacturing machine (M2, M3) being installed in this auxiliary manufacturing enclosure, the mobile workshop comprising an auxiliary self-supporting frame (112 ) supporting this auxiliary manufacturing enclosure and independent of the main self-supporting frame (12), and an auxiliary circulation path (132) being provided in the auxiliary manufacturing enclosure.
    The invention relates to the field of powder-based additive manufacturing by melting the grains of this powder using an energy or heat source such as a laser beam, electron beam, or diodes for example.
    More specifically, the invention aims to facilitate access to additive manufacturing processes.
    Currently, more and more industrial sectors are interested in additive manufacturing, notably aeronautics, automotive, watchmaking, nuclear, etc. In fact, additive manufacturing processes allow the production of parts that are impracticable, or difficult to do, with the usual manufacturing methods of molding and machining for metal parts, or injection for materials based on polymers.
    Also, there are different manufacturers on the market offering different additive manufacturing machines capable of meeting industrial needs.
    Until now, research and development efforts have mainly focused on the productivity of additive manufacturing machines in order to reduce the operating cost of these machines and the cost of manufactured parts.
    However, there is a barrier faced today by manufacturers wishing to use additive manufacturing: the safety of additive manufacturing facilities, and more particularly the safety of people taken to work on additive manufacturing machines and in their close environment.
    Indeed, additive manufacturing powders present various dangers.
    On the one hand, some additive manufacturing powders may contain chemical elements which are allergenic or even toxic. For example, some metallic additive manufacturing powders may contain chemical elements such as nickel or cobalt.
    Then, the melting of the grains of powder gives off fumes containing gases which are toxic to humans.
    Also, to deal with the aforementioned risks simply, the additive manufacturing powders are generally stored and transported to the additive manufacturing machines in sealed containers, and the manufacturing chambers of the additive manufacturing machines are closed enclosures. .
    In addition to the aforementioned risks, certain additive manufacturing powders have the drawback of oxidizing on contact with oxygen contained in the atmosphere.
    [012] Also, to avoid such oxidation, the manufacturing chambers of the additive manufacturing machines are filled with an inert gas such as nitrogen or argon.
    This inerting of the additive manufacturing chambers can be dangerous for people located nearby. In fact, in the event of a leak, the inert gas will gradually replace oxygen and cause suffocation for people located nearby.
    [014] Also, the present invention aims to meet the aforementioned industrial needs while ensuring an optimal level of safety for people taken to work on additive manufacturing machines and in their immediate environment.
    To this end, the invention relates to a mobile workshop for additive manufacturing, the workshop comprising a main self-supporting frame making it possible to transport the workshop by road, the workshop comprising a main manufacturing enclosure supported by the main frame and closed in a sealed manner by panels fixed to the main frame, at least one main additive manufacturing machine being installed inside the main manufacturing enclosure, the main additive manufacturing machine comprising at least one manufacturing within which is implemented an additive manufacturing process consisting of depositing additive manufacturing powder and fusing the grains of this powder using an energy or heat source, the workshop comprising a main inerting device making it possible to supply the manufacturing chamber of the machine with an inert gas and also making it possible to capture the inert polluted gas due to the fumes from additive manufacturing inside the manufacturing chamber, a main circulation path being provided in the main manufacturing enclosure to allow an operator to circulate around the main additive manufacturing machine, l workshop comprising a main airlock for the entry and exit of at least one operator, and this main airlock being supported by the main frame and closed in a sealed manner by panels fixed to the main self-supporting frame, an internal door allows a operator to circulate between the main airlock and the main manufacturing enclosure, and an external door allows an operator to circulate between the main airlock and the outside of the workshop, the mobile workshop comprising at least one auxiliary manufacturing enclosure tightly connected to the main manufacturing enclosure, at least one auxiliary additive manufacturing machine being installed inside this manufacturing enclosure has uxiliaire, the mobile workshop comprising an auxiliary self-supporting frame supporting this auxiliary manufacturing enclosure and independent of the main self-supporting frame, this auxiliary manufacturing enclosure being closed in a sealed manner by panels fixed to the auxiliary self-supporting frame, an auxiliary circulation path being provided in the auxiliary manufacturing enclosure to allow an operator to circulate around each auxiliary manufacturing machine installed in this auxiliary manufacturing enclosure.
    [016] Other characteristics and advantages of the invention will appear in the description which follows. This description, given by way of example and not limiting, refers to the attached drawings in which:
    Figure 1 is a perspective and transparent representation of a second alternative embodiment of the mobile additive manufacturing workshop according to the invention, Figure 2 is a top view of a first alternative embodiment of the workshop additive manufacturing mobile according to the invention, FIG. 3 is a top view of a third alternative embodiment of the additive manufacturing mobile workshop according to the invention, FIG. 4 is a perspective view of a fourth variant embodiment, called multi-speaker, of the mobile additive manufacturing workshop according to the invention, and FIG. 5 is a perspective view of a fourth alternative embodiment, called multi-speaker, of the mobile additive manufacturing workshop according to the invention.
    The invention relates to a mobile additive manufacturing workshop 10 such as it is for example illustrated transparently in FIG. 1.
    In order to be able to transport the workshop 10 by road, the workshop 10 comprises a main self-supporting frame 12 and a main manufacturing enclosure 14 supported by the main frame 12 and closed in a sealed manner by panels 16 fixed to the frame main 12, the panels 16 being transparent in FIG. 1 to allow the interior of the manufacturing enclosure to be viewed.
    More specifically, the workshop 10 and the main manufacturing enclosure 14 take the form of a parallelepiped enclosure with left side walls 18G and right side 18D, front end walls 20F and rear 20R, a floor 22 and a roof 24, the panels 16 are used to close these different walls, left 18G and right 18D, front 20F and rear
    20R, as well as the ground 22 and the roof 24.
    The panels 16 are substantially airtight and airtight in order to avoid any dangerous leakage of gas, powder or liquid towards the environment outside the workshop.
    [021] Preferably, the panels 16 are fire resistant.
    [022] The invention relates to a mobile additive manufacturing workshop, at least one main additive manufacturing machine M1 is installed inside the main manufacturing enclosure 14.
    This main additive manufacturing machine M1 comprises at least one manufacturing chamber inside which is implemented an additive manufacturing process consisting of depositing additive manufacturing powder and fusing the grains of this powder to using a source of energy or heat such as a laser beam, an electron beam, or diodes for example.
    Among the various processes that can be implemented inside an M1 machine installed in a workshop 10 according to the invention, there may be mentioned the additive manufacturing processes by depositing a powder bed, by punctual deposition of powder, by deposition of powder along a predetermined path, by the technique known as “deposition of material under directed energy flow” consisting of depositing a powder using a nozzle and solidifying it at the outlet of the nozzle to using an energy or heat source, or by spraying powder.
    For the inerting of the manufacturing chamber of the main machine M1, the workshop 10 includes a main inerting device 26 for supplying the manufacturing chamber of the main machine M1 with an inert gas such nitrogen or argon. In addition, this main inerting device 26 also makes it possible to capture the fumes from additive manufacturing inside the manufacturing chamber. Finally, the main inerting device 26 makes it possible to filter the fumes so as to be able to reinject the inert gas inside the manufacturing chamber of the machine M1, thus allowing economical use in a closed cycle of the inert gas.
    [026] Preferably, the filters used to trap additive smoke particles are of class F9 according to the filtration standard EN779: 2012 and they make it possible to trap particles with a diameter at least equal to 1 micrometer.
    [027] Other gases, such as, for example, oxygen, which may be present in small quantities, of the order of a few percent, in the manufacturing chamber of the main machine M1, the filtration carried out by the inerting device 26 main also allows to separate the particles of the manufacturing fumes of these other gases so that these other gases is reinjected into the manufacturing chamber of the main machine M1.
    [028] As illustrated diagrammatically in FIG. 3, a first supply conduit 28 makes it possible to conduct the inert gas, and possibly other gases, from the main inerting device 26 to the manufacturing chamber CF1 of the main machine M1 and a second exhaust duct 30 makes it possible to conduct the fumes and part of the gases present in the manufacturing chamber CF1 to the main inerting device 26.
    [029] Advantageously, a cyclone 31 present in the main machine M1 and positioned upstream of the second exhaust duct 30 makes it possible to separate the smoke particles of at least five micrometers from the gas or gases extracted with the fumes from the CF1 manufacturing.
    In addition to the smoke filtration, the main inerting device 26 also makes it possible to manage the pressure of the gases present inside the manufacturing chamber CF1 of the main machine M1. Thus, the main inerting device 26 makes it possible, for example, to lower the pressure of the gases present in the manufacturing chamber CF1 of the main machine M1 in order to avoid leakage of powder towards the outside of the machine.
    [031] Advantageously, the main inerting device 26 is located outside the manufacturing enclosure 14. Thus, the main inerting device 26 is not located in an environment subject to the dangers of manufacturing powders, which facilitates any human intervention on this device, such as changing the aforementioned filters or maintenance operations.
    However, in order to be easily transported with the main manufacturing enclosure 14, the main inerting device 26 is also supported by the main self-supporting frame 12.
    The workshop 10 according to the invention is intended to accommodate one or more operators in the main manufacturing enclosure 14. As illustrated in FIG. 2, a main circulation path 32 is provided in the manufacturing enclosure main 14 to allow an operator to circulate around the main additive manufacturing machine M1. Thus, the operator can load a new additive manufacturing tray in the manufacturing chamber CF1 of the main machine M1, access the means for configuring the additive manufacturing cycle to be launched, and unload the additive manufacturing tray with the part or parts. manufactured.
    [034] Still due to the presence of operators in the mobile workshop 10, the mobile workshop includes a main airlock 34 for the entry and exit of at least one operator. This main airlock 34 is supported by the main frame 12 and closed in a sealed manner by panels 16 fixed to the main self-supporting frame 12. More specifically, the main airlock 34 is located in the extension of the main manufacturing enclosure 14 and it is isolated from this enclosure by a partition 36 made for example of panels 16. An internal door 38 allows an operator to circulate between the main airlock 34 and the main manufacturing enclosure 14, and an external door 40 allows an operator to circulate between the main airlock 34 and the exterior of the mobile workshop 10.
    This main airlock 34 constitutes a first barrier to powder leaks because it avoids putting the interior of the main manufacturing enclosure 14 in direct communication with the exterior of the workshop. Advantageously, this airlock 34 is also used by operators to don their protective equipment, such as overalls, gloves, goggles or masks with respirator, before entering the main manufacturing enclosure 14 and to get rid of this equipment before leaving the mobile workshop 10.
    In addition to the main airlock 34 and still to improve the safety of people taken to circulate around the workshop 10 and inside the main manufacturing enclosure 14, the workshop includes a main processing device 42 air circulating inside the main manufacturing enclosure 14.
    [037] First of all, this main processing device 42 makes it possible to supply the interior of the main manufacturing enclosure 14 with air taken from outside the workshop.
    [038] Then, and always with a view to renewing the air inside the workshop, this main treatment device 42 also makes it possible to take the air present in the main manufacturing enclosure 14 and in the airlock. main 34. The air which circulated in the manufacturing enclosure 14 being able to contain particles of powder of additive manufacturing, the main treatment device 42 makes it possible to filter the air captured in the main manufacturing enclosure 14 and in the main airlock 34 before expelling this air to the air outside the workshop. Preferably, the filters used to separate the particles of additive manufacturing powder from the air captured in the main manufacturing enclosure 14 and in the main airlock 34 are of the HEPA (for High Efficiency Particulate Air) type and these filters make it possible to capture powder particles with a diameter of at least 0.3 micrometer.
    [039] In order to limit the leakage of powder to the outside of the workshop, the main treatment device 42 also makes it possible to manage the pressure of the air present in the main manufacturing enclosure 14 and in the main airlock 34 More specifically, this main processing device 42 is used to lower the pressure in the main manufacturing enclosure 14 and in the main airlock 34 in order to retain the particles and grains of powder inside the workshop. Preferably, the air pressure inside the main manufacturing enclosure 14 is lower than the air pressure inside the main airlock 34, and the air pressure inside of the main airlock 34 is lower than the pressure of the air outside the workshop.
    The implementation of an additive manufacturing process releasing a large amount of heat, the main processing device 42 also makes it possible to regulate, and more precisely to cool, the temperature of the air present in the enclosure. main manufacturing 14 and in the main airlock 34.
    [041] In addition to this temperature regulation, this main treatment device 42 also makes it possible to regulate the humidity level of the air present in the main manufacturing enclosure 14 and in the main airlock 34. Indeed, a rate Too much humidity in the main manufacturing chamber 14 can lead to the presence of water in the manufacturing chamber of the main machine M1 and adversely affect the quality of the melting of the powder grains and therefore that of the parts produced. . Preferably, the humidity level in the main manufacturing enclosure 14 is kept below 40%.
    [042] In order to strengthen the safety of operators inside the main manufacturing enclosure 14, the main treatment device 42 also makes it possible to monitor the level of dioxygen in the air present inside the main manufacturing enclosure 14. In fact, despite the sealing means equipping the CF1 manufacturing chamber and all possible precautions, it may happen that the inert gas introduced into the CF1 manufacturing chamber escapes from this chamber and replaces to other gases, such as dioxygen, in the air present in the main manufacturing chamber 14. More specifically, two alert thresholds are provided: a first alert signal is generated when the level of dioxygen in the air in the main manufacturing enclosure 14 is less than 20%, and a second warning signal is generated when the level of oxygen in the air present in the main manufacturing enclosure 14 is less than 18% . In practice, the first alert threshold is preventive and indicates to the operators that they must evacuate the main manufacturing enclosure 14, and the second alert signal is an alarm intended to evacuate the main manufacturing enclosure 14 as well as the environment in which the mobile workshop is located 10.
    [043] Advantageously, the main processing device 42 is located outside the manufacturing enclosure 14. Thus, the main processing device 42 is not located in an environment subject to the dangers of manufacturing powders, which facilitates any human intervention on this device, such as changing the aforementioned filters or maintenance operations.
    [044] However, in order to be easily transported with the main manufacturing enclosure 14, the main processing device 42 is also supported by the main self-supporting frame 12.
    The different components allowing the inerting device 26 and the main device 42 to fulfill the functions which have just been described can take various forms known to those skilled in the art associated with each of its different functions. In particular, neither means nor described are the means such as pipes, aerators, extractors and fans which allow the main device 42 to treat the air circulating in the main manufacturing enclosure 14.
    [046] In order to supply the main inerting device 26 and the main processing device 42, the main additive manufacturing machine M1, as well as any other device present inside or outside the mobile workshop 10 and requiring an electrical energy supply, the workshop includes a main electrical cabinet 44 grouping together the power and control circuits of the aforementioned devices and machine.
    Advantageously, and like the main inerting device 26 and the main processing device 42, the main electrical cabinet 44 is preferably situated outside the main manufacturing enclosure 14. Thus, this electrical cabinet 44 main is not located in an environment subject to the dangers of manufacturing powders, which facilitates any human intervention, such as maintenance operations.
    [048] However, in order to be easily transported with the main manufacturing enclosure 14, the main electrical cabinet 44 is also supported by the main self-supporting frame 12.
    [049] More specifically, the main inerting device 26, the main processing device 42, and the main electrical cabinet 44 take the form of three blocks attached to the front of the mobile workshop 10, against the wall d front end 20F of the workshop.
    In parallel with the supply of the main machine M1 with inert gas, the treatment of the air circulating in the main manufacturing enclosure14 and the supply of electrical energy, the mobile workshop 10 also includes a supply in water. This water can be used for industrial purposes to rinse or clean the manufactured parts or certain parts or components of the devices described above, and / or this water can also be used by operators to wash or rinse certain parts of the body likely to '' be exposed to powder particles despite protective equipment.
    [051] Also, the water thus used may contain grains of powder with toxic compounds, the mobile workshop 10 comprises a device 46 for main recovery of the wastewater. This main recovery device 46 takes the form of a container making it possible to temporarily store the wastewater before it is recovered and treated by a specialized company.
    [052] Advantageously, the main recovery device 46 is preferably located outside the main manufacturing enclosure 14. This main recovery device 46 is also preferably supported by the main self-supporting frame 12.
    [053] More specifically, the main recovery device 46 takes the form of a block attached to the inerting device 26, to the main processing device 42, and to the main electrical cabinet 44 at the front of the workshop mobile 10, near the front end wall 20F of the workshop.
    [054] In a first alternative embodiment of the mobile workshop 10 as illustrated in FIG. 2, the main airlock 34 comprises only one piece.
    [055] However, in a second variant illustrated in FIG. 1, the main airlock 34 comprises two parts in communication with one another: an external part 34E being in communication with the exterior of the workshop 10 via the external door 40, an internal part 34I being in communication with the main enclosure 14 via the internal door 36, and the internal part 34I communicating with the external part 34E via an intermediate door 48.
    [056] This double airlock 34 is advantageous because it forms a double barrier to possible powder leaks during the entry / exit of operators.
    [057] Of course, the main treatment device 42 ensures the recycling of the air in these two rooms 34I.34E of the main airlock 34 and regulates its temperature and humidity.
    [058] At the same time, the main treatment device 42 also makes it possible to manage the air pressure in each of these two parts 34I.34E of the main airlock 34. Thus, preferably, the pressure of the air present in the main manufacturing enclosure 14 is greater than the pressure of the air present in the interior room 34I of the main airlock, the air pressure present in the interior room 34I of the main airlock is greater than the pressure of the air present in the main airlock the external part 34E of the main airlock, and the pressure of the air present in the external part 34E of the main airlock is greater than the pressure of the air present outside the mobile workshop 10.
    [059] For the entry / exit of various supplies or equipment, such as, for example, batches of powder pots of additive manufacture intended to supply the main machine M1, the mobile workshop 10 comprises an auxiliary airlock 50. This auxiliary airlock is of dimensions smaller than that of the main airlock 34, and it is for example provided through a side wall of the mobile workshop, such as for example the left side wall 18G.
    To facilitate the handling of products entering and leaving the mobile workshop 10 by the auxiliary airlock 50, at least one handling tool 52 is provided inside the main manufacturing enclosure 14.
    [061] This handling tool 52 is for example used by an operator to move a container 54 intended to supply the main machine M1 with new powder, or to move another container 54 making it possible to recycle the powder that has already been used to supply the main machine M1 but not merged.
    [062] In order to best protect operators from exposure to grains of powder of additive manufacturing, the mobile workshop 10 comprises a transfer device 56 comprising an enclosure 58 closed in a sealed manner, at least one window 60 allowing an operator to see inside the enclosure 58, and glove rings 62 allowing an operator to handle jars of powder 55 inside the closed enclosure. By jars of powder 55, it is necessary to understand containers of smaller capacity than the containers 54 and which can be transported and handled by an operator without a handling tool 52. These jars of powder 55 are sealed containers used to store and transport the powder under a controlled, and preferably inert, atmosphere. This transfer device 56 and its enclosure 58 are used to safely transfer the new powder from jars 55 into a container 54, as well as to keep the powder in a controlled and preferably inert atmosphere.
    Advantageously, and in order to preserve the qualities of the additive manufacturing powder by introducing an inert gas such as nitrogen or argon, the enclosure 58 of the transfer device 56 can be connected to the inerting device 26 via the supply pipe 28 and the discharge pipe 30. Optionally, the pipe 30 can be connected to the enclosure 58 of the transfer device 56 to remove the inert gas from the enclosure 58, for example when an operator must open the enclosure 58 to introduce pots 55.
    [064] In parallel with the transfer device 56, the workshop 10 can also include a sieving device 64 making it possible to transfer powder from a first container 54 to another container 54 while sieving this powder via a sieve 65. This sieving device 64 is used to recycle the additive manufacturing powder that has already been used to feed the main machine M1 but that has not been merged. Optionally, the screening device 64 can also be used to screen new powder. For this sieving, the new powder must first be transferred to a container 54, for example with the transfer device 56. Advantageously, and always with a view to protecting the operators, this screening device 64 is preferably arranged at the interior of an enclosure 66 sealed and located inside the main manufacturing enclosure 14.
    Advantageously, and in order to preserve the qualities of the additive manufacturing powder by introducing an inert gas such as nitrogen or argon, the circuit of the screening device 64 can be connected to the inerting device 26 via the supply duct 28 for supplying this circuit with inert gas. Optionally, the circuit of the screening device 64 can also be connected to the inerting device 26 via the evacuation duct 30 to recover part of the inert gas blown into this circuit. The circuit of the sieving device 64 is formed by the container 54 of sieving powder, the sieve 65, the container 54 for receiving the sieved powder and the various fittings and valves located between these elements.
    [066] The transfer device 56 and the sieving device 60 are particularly important in controlling the circuit followed by the powder inside the main manufacturing enclosure 14 and with regard to the safety of the people taken to work in the main manufacturing enclosure 14 of the mobile workshop 10, or in another manufacturing enclosure of this workshop.
    [067] In addition to the devices described above and contributing to operator safety, the main processing device 42 may include means for saturating the air present in the main enclosure 14 with an inert gas, such as nitrogen. This saturation with inert gas makes it possible to prevent a fire from starting inside the main manufacturing enclosure 14. Of course, this operation can only take place once any person has been evacuated from the main manufacturing enclosure. 14.
    [068] In addition, the mobile workshop 10 may include a device 68 for spraying into the main manufacturing enclosure 14 a powder making it possible to inhibit the start of a fire.
    [069] In a third alternative embodiment illustrated in FIG. 3 and aiming to allow the installation in the main manufacturing enclosure 14 of a main machine M1 offering greater production capacities but also having a larger bulk, l mobile workshop 10 includes an extension module 70 of the volume of the main manufacturing enclosure 14. This extension module 70 is self-supporting but fixed to the main self-supporting chassis 12. This extension module 70 is provided opposite the location of the main machine M1 in the main manufacturing enclosure 14. This extension module 70 makes it possible to widen the main manufacturing enclosure 14 near the main machine M1 so that the circulation path 32 allows a operator to move around the machine despite its large size.
    For a similar objective of increasing the production capacity offered by the mobile workshop 10 according to the invention, and as illustrated in FIGS. 4 and 5, the mobile workshop 10 can include at least one auxiliary enclosure manufacturing 114 connected in a sealed manner to the main manufacturing enclosure 14, at least one auxiliary additive manufacturing machine M2 being installed inside this auxiliary manufacturing enclosure.
    [071] Preferably, two machines M2 and M3 of auxiliary additive manufacturing are installed inside this auxiliary manufacturing enclosure 114. A machine is installed at the front of the auxiliary manufacturing enclosure 114 and the other machine is installed at the rear of the auxiliary manufacturing enclosure 114.
    [072] To support this auxiliary manufacturing enclosure 114, the mobile workshop 10 includes an auxiliary self-supporting frame 112, independent of the main self-supporting frame 12. Thus, this auxiliary manufacturing enclosure 114 can be transported by road by another vehicle than the one carrying the main manufacturing enclosure 14.
    [073] Like the main manufacturing enclosure 14, the secondary manufacturing enclosure 114 is closed in a sealed manner by panels 16 fixed to the secondary frame.
    [074] More specifically, the secondary manufacturing enclosure 114 is parallelepipedic with left side walls 118G and right 118D, front end walls 120F and rear 120R, a floor 122 and a roof 124, the panels 16 being used for close these different left walls 118G and right 118D, front 120F and rear 120R, as well as the floor 122 and the roof 124.
    [075] An auxiliary circulation path 132 is provided in the auxiliary manufacturing enclosure 114 to allow an operator to circulate around each auxiliary manufacturing machine (M2, M3) installed in this auxiliary manufacturing enclosure 114.
    [076] In order to connect the two primary 14 and secondary 114 enclosures, each of these enclosures comprises at least one door 72,172, preferably sectional, and a junction corridor 74 is installed between these two doors. This junction corridor 74 is also produced with panels 16. Sealing means, such as seals, are provided at the joints between the corridor 74 and the doors 72,172. This junction corridor 74 allows operators to move freely between the main circulation path 32 of the main enclosure 14 and the auxiliary circulation path 132 of the auxiliary enclosure 114.
    [077] Since the main enclosure 14 can be equipped with an extension module 70, the length L74 of the junction passage 74 is at least equal to the width W70 of the extension module 70.
    [078] Preferably, a door 72, 172 is located on a right side wall 18D, 118D or left side 18G, 118G of its enclosure 14.114. To allow a flexible arrangement, each right side wall 18D, 118D and left side 18G, 118G of each enclosure 14,114 comprises a door 72,172.
    Advantageously, by providing doors 72,172 on each side of each enclosure 14,114, it is possible to connect a plurality of auxiliary manufacturing enclosures 114 to the main manufacturing enclosure. The invention naturally covers such alternative embodiments of the mobile workshop in which two, three, four, etc. auxiliary manufacturing enclosures 114 are connected to a main manufacturing enclosure 14, and in which, at least one, and preferably two, auxiliary additive manufacturing machine (s) are installed in each of these auxiliary manufacturing enclosures 114.
    For the inerting of the manufacturing chambers of the auxiliary machines M2, M3, the workshop 10 includes an auxiliary inerting device 126 making it possible to supply the manufacturing chambers of the auxiliary machines M2, M3 with an inert gas such as nitrogen or argon. In addition, this auxiliary inerting device 126 also makes it possible to capture the fumes from additive manufacturing inside the manufacturing chambers. Finally, the auxiliary inerting device 126 makes it possible to filter the fumes so as to be able to re-inject the inert gas inside the manufacturing chambers of the auxiliary machines M2, M3, thus allowing economical use in the closed cycle of the inert gas.
    [081] Preferably, the filters used to trap additive smoke particles are of class F9 according to the filtration standard EN779: 2012 and they make it possible to trap particles with a diameter at least equal to 1 micrometer.
    [082] Other gases, such as, for example, oxygen, which may be present in small quantities, of the order of a few percent, in the manufacturing chambers of the auxiliary machines, the filtration carried out by the auxiliary inerting device 126 allows also to separate the particles from the manufacturing fumes of these other gases so that these other gases are reinjected into the manufacturing chambers of the auxiliary machines M2, M3.
    [083] As illustrated diagrammatically in FIG. 5, a first supply conduit 128 makes it possible to conduct the inert gas, and possibly other gases, from the auxiliary inerting device 126 to the manufacturing chambers CF2.CF3 of the machines auxiliaries M2, M3 and a second exhaust duct 130 makes it possible to conduct the fumes and part of the gases present in the manufacturing chambers CF2.CF3 to the auxiliary inerting device 126.
    [084] Advantageously, a cyclone present in each auxiliary machine M2, M3 and positioned upstream of the second exhaust duct 30 makes it possible to separate the smoke particles of at least five micrometers from the gas or gases extracted with the fumes from the chambers of CF2.CF3 manufacturing.
    [085] In addition to the filtration of the fumes, the auxiliary inerting device 126 also makes it possible to manage the pressure of the gases present inside the manufacturing chambers CF2.CF3 of the auxiliary machines M2, M3. Thus, the auxiliary inerting device 126 makes it possible, for example, to lower the pressure of the gases present in the manufacturing chambers CF2.CF3 of the auxiliary machines M2, M3 in order to prevent powder leaks to the outside of the machines.
    [086] As just described, the auxiliary inerting device 126 is independent of the main inerting device 26. In addition, the auxiliary inerting device 126 is located outside the auxiliary manufacturing enclosure 114. Advantageously, the auxiliary inerting device 126 is supported by the auxiliary self-supporting frame 112.
    [087] To avoid oversizing the main device 42 for treating the air circulating inside the main manufacturing enclosure 14, the workshop includes an auxiliary treatment device 142 which supports the main treatment device 42 in the treatment of the air circulating in the various enclosures 14,114.
    [088] This auxiliary processing device 142 is independent of the main processing device 42. This auxiliary processing device 142 allows the auxiliary manufacturing enclosure 114, and therefore the main manufacturing enclosure 14, to be supplied with air taken from outside the workshop.
    [089] The air which circulated in the enclosures 14,114 can contain powder particles of additive manufacture, the auxiliary treatment device 142 makes it possible to filter the air collected before expelling this air towards the air outside the workshop. Preferably, the filters used to separate the particles of additive manufacturing powder from the captured air are of the HEPA (for High Efficiency Particulate Air) type and these filters make it possible to capture powder particles with a diameter at least equal to 0.3 micrometer.
    [090] In order to limit the leakage of powder to the outside of the workshop, the auxiliary treatment device 142 also makes it possible to manage the pressure of the air present in the chambers 14 ,. More specifically, this auxiliary processing device 142 is used to lower the pressure in the chambers in order to retain the particles and grains of powder inside the workshop. Preferably, the air pressure inside the manufacturing enclosures 14,114 is lower than the air pressure inside the main airlock 34, and the air pressure inside the main airlock 34 is lower than the pressure of the air outside the workshop.
    The implementation of an additive manufacturing process releasing a large amount of heat, the auxiliary processing device 142 also makes it possible to regulate, and more precisely to cool, the temperature of the air present in the manufacturing enclosures 14,114 and in the main airlock 34.
    [092] In addition to this temperature regulation, this auxiliary processing device 142 also makes it possible to regulate the humidity level of the air present in the manufacturing chambers 14,114 and in the main airlock 34.
    [093] In order to enhance the safety of operators inside the manufacturing enclosures 14,114, the auxiliary processing device 142 also makes it possible to monitor the level of oxygen in the air present inside the manufacturing enclosures.
    [094] Advantageously, the auxiliary processing device 42 is located outside the auxiliary manufacturing enclosure 114. In addition, the auxiliary processing device 142 is also supported by the auxiliary self-supporting frame 112.
    [095] In order to supply the auxiliary inerting device 126 and the auxiliary processing device 142, the auxiliary additive manufacturing machines M2, M3, as well as any other device requiring an electrical power supply, the workshop includes a cabinet electric auxiliary 144 grouping together the power and control circuits of the aforementioned devices and machine. This auxiliary electrical cabinet 144 is independent of the main electrical cabinet 44.
    Advantageously, and like the auxiliary inerting device 126 and the auxiliary processing device 142, the auxiliary electrical cabinet 144 is preferably located outside of the auxiliary manufacturing enclosure 114. In addition, the auxiliary electrical cabinet 144 is supported by the auxiliary self-supporting frame 112.
    [097] More specifically, the auxiliary inerting device 126, the auxiliary processing device 142, and the auxiliary electrical cabinet 144 take the form of three blocks attached to the front of the auxiliary manufacturing enclosure 114.
    [098] The mobile workshop 10 also includes an auxiliary wastewater recovery device 146. This recovery device 146 is independent of the main recovery device 46. This auxiliary recovery device 146 takes the form of a container making it possible to temporarily store the wastewater before it is recovered and treated by a specialized company.
    Advantageously, the auxiliary recovery device 146 is preferably located outside of the auxiliary manufacturing enclosure 114. This auxiliary recovery device 146 is also preferably supported by the auxiliary self-supporting frame 112.
    More specifically, the auxiliary recovery device 146 takes the form of a block attached to the auxiliary inerting device 126, to the auxiliary processing device 142, and to the auxiliary electrical cabinet 144 at the front of the auxiliary manufacturing enclosure 114, near the front end wall 20F of this enclosure.
    In addition to the devices described above and contributing to operator safety, the auxiliary treatment device 142 may include means for saturating the air present in the chambers 14,114 with an inert gas, such as nitrogen.
    In addition, the mobile workshop 10 may also include a device 168 for spraying into the auxiliary manufacturing enclosure 114 a powder making it possible to inhibit the start of a fire.
    In addition, the mobile workshop 10 may also include one or more auxiliary extension modules 170 of the volume of the auxiliary manufacturing enclosure 114. Each auxiliary extension module 170 is self-supporting but fixed to the auxiliary self-supporting chassis.
    112. An auxiliary extension module 170 is provided opposite the location of each auxiliary machine M2, M3 in the auxiliary manufacturing enclosure 14. Each auxiliary extension module 170 makes it possible to widen the auxiliary manufacturing enclosure 114 near an auxiliary machine M2, M3 so that the auxiliary circulation path 132 allows an operator to circulate around these machines despite their large size.
    权利要求:
    Claims (13)
    [1" id="c-fr-0001]
    1. Mobile workshop (10) for additive manufacturing, the workshop comprising a main self-supporting frame (12) making it possible to make the workshop transportable by road, the workshop comprising a main manufacturing enclosure (14) supported by the main frame and closed in a sealed manner by panels (16) fixed to the main frame, at least one main additive manufacturing machine (M1) being installed inside the main manufacturing enclosure, the main additive manufacturing machine (M1) comprising at least one manufacturing chamber inside which is implemented an additive manufacturing process consisting in depositing additive manufacturing powder and in fusing the grains of this powder using an energy source or heat, the workshop comprising a main inerting device (26) making it possible to supply the manufacturing chamber (CF1) of the machine (M1) with an inert gas and also making it possible to capture the inert gas pol read by the fumes from additive manufacturing inside the manufacturing chamber (CF1), a main circulation path (32) being provided in the main manufacturing enclosure (14) to allow an operator to circulate around of the main additive manufacturing machine (M1), the workshop comprising a main airlock (34) for the entry and exit of at least one operator, and this main airlock (34) being supported by the main frame (12 ) and closed in a sealed manner by panels (16) fixed to the main self-supporting frame (12), an internal door (38) allows an operator to circulate between the main airlock (34) and the main manufacturing enclosure (14) , and an external door (40) allows an operator to circulate between the main airlock (34) and the outside of the workshop (10), the mobile workshop comprising at least one auxiliary manufacturing enclosure (114) connected sealed to the main manufacturing enclosure (14), at least one manufacturing machine auxiliary additive ion (M2, M3) being installed inside this auxiliary manufacturing enclosure (114), the mobile workshop comprising an auxiliary self-supporting frame (112) supporting this auxiliary manufacturing enclosure (114) and independent of the self-supporting frame main (12), this auxiliary manufacturing enclosure (114) being sealed by panels (16) fixed to the auxiliary self-supporting frame (112), an auxiliary circulation path (132) being provided in the auxiliary manufacturing enclosure (114) to allow an operator to circulate around each auxiliary manufacturing machine (M2, M3) installed in this auxiliary manufacturing enclosure (114).
    [2" id="c-fr-0002]
    2. Mobile additive manufacturing workshop according to claim 1, in which two auxiliary additive manufacturing machines (M2, M3) are installed inside the auxiliary manufacturing enclosure (114).
    [3" id="c-fr-0003]
    3. Mobile additive manufacturing workshop according to one of the preceding claims, in which each of the enclosures (14,114) comprises at least one door (72,172), and in which a connecting corridor (74) is installed between these two doors.
    [4" id="c-fr-0004]
    4. Mobile additive manufacturing workshop according to one of the preceding claims, in which the workshop (10) comprising an auxiliary inerting device (126) for supplying the manufacturing chamber of each auxiliary machine (M2, M3 ) with an inert gas and to capture the fumes from additive manufacturing inside each manufacturing chamber of an auxiliary machine (M2, M3), the auxiliary inerting device (126) is independent of the device main blanking (26).
    [5" id="c-fr-0005]
    5. mobile additive manufacturing workshop according to claim 4, in which the main inerting device (26) is located outside the manufacturing enclosure (14) and is supported by the main self-supporting frame (12), and wherein the auxiliary inerting device (26) is located outside the auxiliary manufacturing enclosure (114) and is supported by the auxiliary self-supporting frame (112).
    [6" id="c-fr-0006]
    6. mobile additive manufacturing workshop according to one of the preceding claims, in which the workshop comprising a main device (42) for treating the air circulating inside the main manufacturing enclosure (14), the workshop includes an auxiliary treatment device (142) which assists the main treatment device (42) in the treatment of the air circulating in the various enclosures (14,114), this auxiliary treatment device (142) being independent of the device main processing unit (42).
    [7" id="c-fr-0007]
    7. mobile additive manufacturing workshop according to claim 6, in which the main processing device (42) is located outside the manufacturing enclosure (14) and is supported by the main self-supporting frame (12), and wherein the auxiliary processing device (42) is located outside the auxiliary manufacturing enclosure (114) and is supported by the auxiliary self-supporting frame (112).
    [8" id="c-fr-0008]
    8. Mobile additive manufacturing workshop according to one of the preceding claims, in which the workshop comprising a main electrical cabinet (44) grouping together the power and control circuits of the main processing (42) and inerting devices ( 26) and of the main machine (M1), the workshop comprises an auxiliary electrical cabinet (144) grouping together the power and control circuits of the auxiliary inerting device (126), of the auxiliary processing device (142), and auxiliary additive manufacturing machines (M2, M3), this auxiliary electrical cabinet (144) being independent of the main electrical cabinet (44).
    [9" id="c-fr-0009]
    9. mobile additive manufacturing workshop according to claim 8, in which the main electrical cabinet (44) is located outside the main manufacturing enclosure (14) and is supported by the main self-supporting frame (12), and in which the auxiliary electrical cabinet (144) is located outside of the auxiliary manufacturing enclosure (114) and is supported by the
    5 auxiliary self-supporting frame (112).
    [10" id="c-fr-0010]
    10. Mobile workshop for additive manufacturing according to one of the preceding claims, in which the mobile workshop (10) comprises a recovery device (46) for main wastewater and a recovery device (146) for auxiliary wastewater. recovery device (146) being independent of the main recovery device (46).
    11. Mobile additive manufacturing workshop according to claim 10, in which the main recovery device (46) is located outside the main manufacturing enclosure (14) and is supported by the main self-supporting frame (12). , and wherein the auxiliary recovery device (146) is located outside the auxiliary manufacturing enclosure (114) and is supported by the auxiliary self-supporting frame (112).
    [11" id="c-fr-0011]
    15 12. Mobile additive manufacturing workshop according to one of the preceding claims, in which the mobile workshop (10) comprises an extension module (70) of the volume of the main manufacturing enclosure (14), this module extension (70) being self-supporting but fixed to the main self-supporting chassis (12), and this extension module (70) being provided opposite the location of the main machine (M1) in the main manufacturing enclosure (14 ).
    [12" id="c-fr-0012]
    13. Mobile additive manufacturing workshop according to one of the preceding claims, in which the mobile workshop (10) comprises one or more auxiliary extension modules (170) of the volume of the auxiliary manufacturing enclosure (114), each auxiliary extension module (170) being self-supporting but fixed to the auxiliary self-supporting chassis (112), and an auxiliary extension module (170) being provided opposite the location of each auxiliary machine (M2, M3)
    [13" id="c-fr-0013]
    25 in the auxiliary manufacturing enclosure (14).
    co
    Mcr
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    同族专利:
    公开号 | 公开日
    WO2018069447A1|2018-04-19|
    EP3525958A1|2019-08-21|
    CN109803777A|2019-05-24|
    US20190009337A1|2019-01-10|
    FR3057479B1|2020-07-17|
    KR20190059928A|2019-05-31|
    EP3525958B1|2020-07-01|
    KR102337443B1|2021-12-10|
    CN109803777B|2021-03-30|
    US10792732B2|2020-10-06|
    JP2019532183A|2019-11-07|
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    法律状态:
    2017-10-24| PLFP| Fee payment|Year of fee payment: 2 |
    2018-04-20| PLSC| Publication of the preliminary search report|Effective date: 20180420 |
    2018-10-12| CD| Change of name or company name|Owner name: ADDUP, FR Effective date: 20180910 |
    2018-10-22| PLFP| Fee payment|Year of fee payment: 3 |
    2019-10-28| PLFP| Fee payment|Year of fee payment: 4 |
    2020-10-21| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1659897A|FR3057479B1|2016-10-13|2016-10-13|MOBILE MULTI-SPEAKER ADDITIVE MANUFACTURING WORKSHOP|
    FR1659897|2016-10-13|FR1659897A| FR3057479B1|2016-10-13|2016-10-13|MOBILE MULTI-SPEAKER ADDITIVE MANUFACTURING WORKSHOP|
    JP2019520144A| JP2019532183A|2016-10-13|2017-10-12|Mobile multi-housing additional manufacturing equipment|
    EP17780454.9A| EP3525958B1|2016-10-13|2017-10-12|Mobile multi-housing additive manufacturing workshop|
    CN201780062251.4A| CN109803777B|2016-10-13|2017-10-12|Multi-packaging movable additive manufacturing equipment|
    US16/066,748| US10792732B2|2016-10-13|2017-10-12|Mobile multi-housing additive manufacturing installation|
    PCT/EP2017/076072| WO2018069447A1|2016-10-13|2017-10-12|Mobile multi-housing additive manufacturing centre|
    KR1020197010322A| KR102337443B1|2016-10-13|2017-10-12|Mobile Multi-Housing Additive Manufacturing Equipment|
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