• 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 present invention relates to a manufacturing method for manufacturing a metal part. The metal part is manufactured by stacking one after the other a plurality of layers (200) of metal strips (100) one above the other, each layer (200) comprising a plurality of metal strips (100). ), each metal strip (100) of a layer being arranged next to at least one other metal strip of this layer, each layer of metal strips called "top layer (205)" to be deposited above at least one another layer called "lower layer (204)" being formed by depositing and solidarisant each metal strip of the upper layer (205) on at least two metal ribbons of the lower layer (204).
    公开号:FR3038538A1
    申请号:FR1501462
    申请日:2015-07-09
    公开日:2017-01-13
    发明作者:Sauce Jacques Le
    申请人:Airbus Helicopters SAS；
    IPC主号:
    专利说明:

    Method of manufacturing a metal part
    The present invention relates to a method of manufacturing a metal part. The invention is therefore in the technical field of manufacturing metal parts, such as large metal parts of an aircraft.
    The manufacture of metal panels of complex shapes and more particularly non-developable forms is made on the basis of rolled sheet metal sheets and forming and assembly technologies.
    The forming and joining technologies are based on basic principles that have existed for many years for metallic materials such as materials including aluminum, steel, or titanium. The term "metallic materials" refers to metals but also to alloys of metals such as an aluminum alloy for example.
    These technologies require the use of sheet metal plates having dimensions limited to standard formats.
    The sheet metal plates are then shaped by stamping, drawing or rolling processes using tools. These tools are called "forming tools" for convenience.
    In addition, a mechanical part may require the use of several plates of sheets which are assembled to each other in connection areas by tools called convenience "assembly tools". The assembly tools can implement welding, brazing, riveting, friction / kneading or gluing processes.
    In addition, a mechanical part may have a variable thickness to be reinforced or lightened locally. The production of metal mechanical parts having varying thicknesses requires the use of complex chemical or mechanical machining techniques for parts of large areas.
    Although many improvements have been made to metal forming and joining technologies over time, the basic principles have not been disrupted and disadvantages remain.
    In fact, the forming and welding tools are expensive because of their exposure to high temperatures or to significant efforts. The shaping of sheet metal plates therefore requires tools and heavy and expensive means that may be poorly suited to achievements for a small series of parts.
    In addition, the use of standard sheet metal plates can induce a high material drop rate. The term "drop rate" refers to the ratio of the amount of metal lost in the manufacture of a part to the amount of metal needed to make that part.
    A significant sink rate is economically and environmentally unfavorable. The realization of variable thickness coatings further increases the rate of fall of up to 95% on some parts, with high impacts on the environment and cost.
    In addition, the assembly phases can induce discontinuities in the mechanical performance of the mechanical part obtained, particularly in the connection areas.
    To overcome these disadvantages, a mechanical part can be made by using composite materials. The introduction of composite materials as an alternative to metallic materials made it possible to produce parts with complex shapes.
    The manufacture of composite material parts implements specific techniques. A so-called "fiber placement method" is a process for depositing dry fibers or pre-impregnated resin on surfaces of various shapes. This placement is achieved by implementing a device provided with a movable placement head.
    The placement head comprises at least one roller on which is for example wound a ribbon of pre-impregnated fibers. This ribbon is then unwound on a mandrel by the placement head by direct mechanical contact on the mandrel. For this purpose, the placement head is driven by a robot-type displacement system whose degrees of freedom are controlled according to the geometry of the surface to be covered. The term "robot" is interpreted in a broad sense, this term referring to a robot as such or to a gantry positioning for example.
    This technology is very interesting and has resulted in the development of high-performance machines but faces a problem of cost of specific materials to use. The supply of some fibers and some pre-impregnated tapes can be tricky and expensive.
    In addition, the placement process requires a heavy aftertreatment that typically requires the polymerization and / or consolidation of the materials used. The mechanical part can then be polymerized in an autoclave having dimensions adapted to the definitive shape of the piece constructed. According to one alternative, several elementary parts are manufactured and then assembled by usual means to avoid using a large size autoclave.
    The means of polymerization or consolidation represent heavy investments essential for the use of composite materials provided with thermosetting or thermoplastic resins.
    In addition, the manufacturing times may be important because of the cycles of polymerization or consolidation of the resins.
    Finally, the fluctuating quality of the composite materials used can pose great difficulties during their implementation.
    US 6606626, US 6939423, US 7235149 and US 8007894 relate to the use of composite materials
    Similarly, the documents US 8048253, US 8168029, US 8048253 and 8168029 relate to composite materials.
    On the contrary, the invention relates to the manufacture of metal parts. Therefore, the invention relates to the technical field of the manufacture of metal parts, and not to the specific technical field to the manufacture of parts made of composite materials. The teaching described above is therefore far from the invention.
    EP 0162183 discloses a method of assembling a three-dimensional metal structure. This method proposes making planar lattices using a flat welder to assemble longitudinal wires in a given orientation and spacer wires in a different orientation.
    In addition, according to this method, an assembly machine assembles the planar lattices with transverse yarns.
    Document US 2013 / 280.547 proposes to construct a structure using layers of powder containing a mixture of metal and various components. This layer of powder is then melted.
    US 2014 / 312.098 discloses a method for ultrasonically welding a ribbon on a carrier. The ribbon may comprise an amorphous metal alloy.
    Document US 2015/0044084 is also known,
    The present invention therefore aims to provide a method of manufacturing a metal part. Such a mechanical part may for example be a structural coating, an aircraft fuselage or a ship's hull. The invention therefore relates to a manufacturing method for manufacturing a metal part.
    According to this method, the metal part is manufactured by stacking one after the other a plurality of layers of metal strips one above the other, each layer comprising a plurality of metal strips, each metal strip of a layer being arranged next to at least one other metal strip of this layer, each layer of metal ribbons called "top layer" to be deposited on top of at least one other layer called "lower layer" being made by depositing and solidarisant each metal strip of the upper layer on at least two metal ribbons of the lower layer. The expression "stacking one after another" means that a layer is deposited only when the previous layer is finalized. Thus, all the metal ribbons of one layer, then all the metal ribbons of another layer and so on. The layers are thus deposited one after the other.
    This method then proposes to produce a mechanical part, by assembling metal strips of small thicknesses superimposed and oriented on demand in the direction of the main forces experienced by the mechanical part.
    Optionally, identical layers of metal strips are stacked to reinforce a part. A local reinforcement may also possibly comprise a single ribbon.
    Such metal ribbons can be made in any type of metal that may for example be spun and made into coils. The metal tapes comprise a metal or a metal alloy, an aluminum alloy for example. These metal ribbons can have an optimized cost compared to the cost of certain composite materials.
    The width and thickness of the metal ribbons is furthermore a function of the chosen application and of the tool used to deposit these metal ribbons.
    Each metal ribbon can be deposited using a robot unwinding a coil. This robot applies the metal ribbon and cuts it if necessary. Each metal strip of a layer then represents a segment of an initial metal ribbon which is wound on a coil.
    To make a layer, the robot then deposits the multiple metal ribbons of the layer. In addition, the metal ribbons of a layer are secured to the metal ribbons of a previously deposited layer. Thus, the mechanical part comprises according to its thickness a plurality of metal layers secured to each other.
    The constitution of the mechanical part is then for example made with a robot provided with a securing means for securing the metal ribbons. Optionally, the robot can simultaneously deposit several ribbons, for example eight metal ribbons with an elementary width of 6.3 mm simultaneously depositable. The assembly of the metal ribbons is possibly achieved by securing means ensuring a perfect cohesion and maintenance of the intrinsic properties of these metal ribbons without post-consolidation treatment with passage in the oven, autoclave or press.
    This robot can be of the type used by fiber placement methods. Nevertheless, unlike fiber placement methods that typically require passages in an autoclave, the invention allows to directly produce metal parts. Therefore, a state of the art consists of either using shaped sheet metal plates, or to make a piece of composite materials. The invention goes against these teachings by producing a metal part from metal ribbons. The mechanical part can then take the form of an anisotropic or quasi-isotropic hybrid material, metal-based which can be formed on demand according to shapes, thicknesses and variable orientations. The use of metal ribbons is not obvious because of the intrinsic rigidity of the metals which makes the application of metal ribbons difficult. However, thin metal ribbons can be wound and unrolled. Such metal ribbons may also retain interesting mechanical properties.
    In addition, the metal strips must be assembled to each other in areas of attachment which may seem embarrassing. Each fixing zone represents a mechanical discontinuity. However, each metal strip of an upper layer rests on at least two other metal ribbons. From then on, the metal ribbons extend in various directions.
    For example, two superposed metal ribbons of two distinct layers respectively extend in two different directions. As a result, the different orientations of the metal ribbons make it possible to obtain a resistant mechanical part despite the presence of multiple fixing zones.
    Moreover, the method makes it possible to produce mechanical parts having variable thicknesses. Indeed, a layer may partially cover another layer to locally generate an extra thickness.
    In addition, the assembly of the metal strips can be made flat taking into account the variations in thickness of the final part, and possibly shaped and consolidated by a hot stamping cycle to achieve the final consolidation (brazing , collage).
    This method can also make it possible to produce large parts of non-developable shapes without assembly of elementary sheets limited in size. Indeed, coils can contain long lengths of metal ribbons making it possible to produce large pieces.
    A mechanical part can also be obtained by using different metals.
    In another aspect, the use of metallic tapes forming metal layers reduces the rate of fall compared to certain methods.
    The method may further include one or more of the following features.
    Each metal strip of an upper layer can be secured to a lower layer as it is applied to the lower layer. Therefore, the assembly of a metal strip of a top layer is concomitant with the laying of the metal strip. This feature aims to simplify the process.
    Furthermore, each metal strip of a top layer can be secured to a lower layer by a technique to be selected from a list including at least one of the following techniques: soldering, welding, gluing.
    Welding techniques do not require filler material. For example, an ultrasonic weld can be used. The assembly of the metal strips can be achieved by brazing. Such an assembly may be carried out possibly either by prior association of the filler metal with the metal strip on one or both of its faces, or by continuous deposition in the form of sprayed powder. The local heating of the continuously welded zone can be carried out by laser, infrared or induction.
    For example, in the case of brazing, a heating means moves simultaneously with the point of contact of the metal ribbon placed in place.
    An alternative to welding and brazing is the bonding using glue or fast polymerization thermo-activatable by UV laser, IR, induction etc .... The metal ribbons then have a surface treatment to achieve the assemblies in the best conditions.
    In the context of a brazing or gluing technique, at least one metal strip of a layer may be attached to a ribbon of a filler material called "filler ribbon".
    The filler tape may be a glue tape in the context of a gluing technique or metal as part of a brazing technique.
    For example, a lower face of a metal strip of an upper layer is contiguous to a delivery ribbon before being applied to a lower layer, said delivery ribbon being arranged between the metal ribbon and a lower layer.
    Alternatively, an upper face of a metal ribbon of a lower layer is contiguous to a delivery ribbon.
    Furthermore, the metal part may comprise a stack of layers extending in thickness from a so-called "first layer" to a so-called "last layer" layer, the first layer representing only a lower layer and the last layer representing only a single layer. upper layer, each metal strip of said first layer being held pressed against a counter-form.
    The first layer and the last layer at least partially represent two opposite faces of the metal part. Therefore, the first layer does not cover any other layer. Conversely, the last layer is not covered by any other layer.
    Furthermore, each metal strip of said first layer is optionally kept pressed by suction on the counter-form.
    The metal ribbons of the first layer are deposited on molds defining a counterform. Favorably, such molds do not require resistance to high temperatures, unlike molds to be arranged in an autoclave. The molds can then be made from inexpensive materials.
    The mold may include a suction device for pressing each metal ribbon of the first layer against the counter-form.
    Complementarily or alternatively, each metal strip of said first layer is held pressed against the form by a holding device.
    Furthermore, the metal part having a stack of layers extending in thickness, at least one layer being called "intermediate layer" and being disposed between the first layer and the last layer, each intermediate layer represents a lower layer in view of a layer which overhangs it, and an upper layer with regard to another layer which it overhangs.
    The mechanical part then comprises at least three layers, namely a first layer and a last layer and at least one intermediate layer.
    In addition and according to one variant, no metal strip of one layer covers another metal strip of this layer.
    This variant aims to optimize the application of a layer on another layer by avoiding a local extra thickness caused by a covering.
    Furthermore, a layer of metal ribbons can partially recover at least one other layer.
    This alternative makes it possible to produce a mechanical part having a variable thickness.
    In another aspect, each metal strip has a thickness of between 0.05 and 0.5 millimeters, a width of between 3 and 30 millimeters, and a length greater than said width.
    These dimensions to obtain a metal ribbon that can be wound on a reel while maintaining acceptable mechanical properties.
    The width of the metal ribbons to be assembled is directly related to the complexity of the shape of the mechanical part to be produced. The more complex the piece, the narrower the metal ribbons.
    Preferably, the elementary metal ribbons are made of aluminum alloy. These metal ribbons have a width of 6.3 millimeters and a thickness of 0.15 millimeters. These metal ribbons are available in the form of coils or rollers guaranteeing their integrity and allowing their mounting on dispensing machines.
    Moreover, when all the layers are deposited, a surface treatment can be applied to the mechanical part.
    For example, a surface treatment is performed to protect the mechanical part against corrosion.
    Alternatively or complementary, the metal ribbons are treated before their application.
    Furthermore, following the deposition of a layer having a void space between two ribbons, it is possible to apply a filler in said space.
    A mechanical part may have a non-developable shape requiring to tilt metal ribbons of a layer relative to other metal ribbons of this same layer. Therefore, spaces can appear between metal ribbons.
    These spaces may be acceptable for a constructor by having small dimensions for example. Nevertheless, a space can be plugged with a suitable material, such as a resin for example.
    In addition, when all the layers are deposited, a clipping step is optionally implemented.
    Cutting by machining or cutting jet water or laser can be performed to meet the desired final dimensions and avoid delamination primers. The invention and its advantages will appear in more detail in the context of the description which follows with examples of embodiments given by way of illustration with reference to the appended figures which represent: FIG. 1, a placement robot according to the invention, - Figure 2, a diagram detailing a placement robot, - Figures 3 to 10, diagrams explaining the method of the invention.
    The elements present in several separate figures are assigned a single reference.
    Figure 1 shows a placement robot 10 for placing metal ribbons 100 constituting a metal part. In particular, the robot 10 deposits the metal ribbons on a counterform 1, such as a surface 2 of a mold.
    This robot 10 includes an application head 20 for depositing a metal strip 100. Such a metal strip may comprise a metal or a metal alloy wound on a supply reel 25. The metal strip may have a thickness 101 between 0.05 and 0.5 millimeters in a direction in elevation Z, a width 103 between 3 and 30 millimeters in a transverse direction Y, and a length 102 greater than said width in a longitudinal direction X.
    The robot 10 further has a system for moving the application head 15 in space. In addition, the robot 10 comprises a control means 16 for controlling the application head 20 and the displacement system 15.
    The control means may be provided with a visual interface 17 and means 18 manually maneuverable by an operator for setting control parameters of the robot 10. For example, these parameters relate in particular to the displacement of the application head 20, at the running speed of the metal strip 100, the eventual cutting of this metal strip 100, an application pressure of the metal strip 100, and any other parameter useful for the operation of the robot 10.
    FIG. 2 shows a diagram of an embodiment of the application head 20.
    This application head can be powered by a supply coil 25. A metal strip 100 is then wound around the supply coil. According to the variant of Figure 2, the supply coil is carried by the application head.
    On the other hand, the application head 20 may comprise a conventional drive means for moving the metal ribbon. Such a drive means may for example comprise at least one traction roller.
    Independently of the embodiment, the metal strip 100 is further directed to a securing means 50 ensuring the assembly of the metal ribbons by at least one of the following methods: • high frequencies (Ultra sound welding) • caloric intake (brazing / bonding) • Electromagnetic pulses (Direct soldering)
    The securing means 50 may therefore comprise an ultrasonic welding means, a brazing soldering means, a bonding means for bonding, an electromagnetic pulse welding means.
    The securing means is further optionally provided with a pressure means 35 able to press the metal ribbon against a mold. Such pressure means 35 may for example comprise a wheel. This roulette can possibly be heated.
    The application head 20 is then moved by order of the control means 16, the speed of movement of the application head being equal to the speed of movement of the metal ribbon and dependent on the assembly means used to ensure good quality of the element thus constituted.
    In another aspect, the application head 20 may comprise a cutting means 40 of the metal strip 100. This cutting means 40 may have a tapered means 41 cooperating with an active moving member 42.
    The metal strip 100 can then be cut at the request of the control means 16 by moving the tapered means according to the double arrow F2.
    Furthermore, the robot may comprise a holding device 60 for pressing at least one metal ribbon against the counterform 1.
    This holding device 60 may comprise a suction device 61, such as a pump 62 for example. Therefore, this suction device cooperates with openings 3 of the counterform 1 which open on the surface 2 to be covered.
    The suction device 61 thus creates a vacuum by circulating the air according to the arrows F3 to press the metal strip 100.
    Alternatively or additionally, the holding device comprises a clamping tool 63.
    Furthermore, the application head comprises a securing means 50 for securing a metal strip 100 being deposited to each metal strip covered by the metal strip 100 being deposited.
    According to the first embodiment of FIG. 2, this securing means 50 may comprise a coil 53 carrying a filler tape 52. This filler tape may be an adhesive tape or a ribbon of a brazing material for example . The delivery ribbon 52 is then attached to the metal ribbon 100. The coil 53 carrying the delivery ribbon may be carried by the application head, or may be located outside this application head.
    In addition, the securing means has a heating means 51 by laser, infrared or induction. The heating means is for example arranged upstream of a pressure means 35 in the direction of advance of the application head 20.
    This embodiment makes it possible to secure a metal strip by brazing using a filler tape provided with a brazing material, or by gluing using a filler tape provided with an adhesive.
    According to the second embodiment of Figure 1, the securing means 50 comprises a welding means 54, such as an ultrasonic welding means. The welding means can be arranged downstream of a pressure means 35 in the direction of advance of the application head 20.
    Whatever the embodiment, Figures 3 to 10 illustrate the method according to the invention.
    According to this method, the robot 10 produces a metal piece by stacking one after the other a plurality of layers of metal strips 100 one above the other.
    Thus, and with reference to FIG. 3, the robot 10 moves the application head to deposit the metal strips of a first layer on the counter-form 1. Each metal strip of this first layer is held pressed against the counter-form by the holding device 60.
    Referring to Figure 4, each layer 200 and in particular the first layer 201 has a plurality of metal ribbons 100. Each metal strip 100 of a layer is arranged next to at least one other metal strip of this layer. Therefore, the application head unrolls the metal ribbon stored on the supply reel on the against-shape and then cuts the metal ribbon, if necessary. The deposited metal strip then represents a segment of the metal strip wound on the supply reel.
    The application head is then moved to deposit another metal ribbon of the first layer. Optionally, no metal strip of a layer covers another metal strip of this layer to avoid creating an extra thickness. However, such an allowance may be required for certain applications.
    The metal ribbons of one layer may all extend parallel to the same direction D1 according to the example of FIG.
    However, and with reference to FIG. 4, metal strips 105 of a layer 200 may extend parallel to the same direction D10, other metal strips 106 of this same layer 200 may extend parallel to at least one other direction D11. At the end of the deposition of the metal ribbons of the layer concerned, the layer then has at least one empty space 250 between two metal ribbons. Optionally, a filler is applied in this space 250.
    Moreover, and with reference to FIG. 5, a plurality of layers 200 are stacked at least partially on one another. At least, the mechanical part comprises a first layer 201 affixed to the counterform 1 and a so-called "last layer 203" layer.
    Due to the stacking performed, a layer may be an "upper layer 205" layer deposited on top of at least one other layer called "lower layer 204". As a result, the first layer 201 represents only a lower layer 204, the last layer 203 only representing an upper layer 205.
    To achieve an upper layer, the application head deposits and secures the metal ribbons of the upper layer on at least one lower layer.
    In particular, each metal strip of an upper layer 205 is disposed on at least two metal strips of a lower layer 204. Two superposed metal strips of two distinct layers respectively extend in two different directions.
    In addition, during its application, each metal strip of an upper layer is secured to metal ribbons of a lower layer 204 as it is applied to the lower layer. A metal ribbon may be secured to other metal ribbons by the securing means by applying a technique to choose from a list including at least one of the following techniques: brazing, welding, gluing.
    Moreover, when all the layers are deposited, a surface treatment can be applied to the mechanical part. For example, an anticorrosion product and / or a paint are applied. Therefore, when all the layers are deposited, a clipping step can be implemented. For example, a trimming 301 aims to cut the layers obtained to obtain a cylindrical shape 300.
    According to the embodiment of Figures 6 to 10, the mechanical part comprises at least three layers. From now on and with reference to FIG. 6, a first layer 201 is deposited on a counter-form. For example, the metal strips extend in a first direction D1.
    With reference to FIG. 7, at least one intermediate layer 202 is deposited.
    For example, an intermediate layer 202 called "intermediate layer number one 202 '" is deposited on the first layer, the metal ribbons of this intermediate layer number one 202' stretching in a second direction D2. The intermediate layer 202 'represents an upper layer with respect to the first layer.
    An angle of -45 degrees can separate the first direction D1 and the second direction D2.
    Referring to FIG. 8, another intermediate layer 203 called "intermediate layer number two 202" is deposited on the first layer and on the intermediate layer number 202. The metal ribbons of this intermediate layer number two 202 "stretch. in a third direction D3. An angulation of +45 degrees can separate the first direction D1 and the third direction D3.
    The intermediate layer number one 202 'then represents a lower layer with respect to the intermediate layer number two 202 ".
    Moreover, and with reference to FIG. 9, a layer of metal strips may partially cover at least one other layer. In this case, the number two interlayer 202 "partially overlaps the first layer and the number one interlayer 202 '.
    Finally, and with reference to FIG. 10, the last layer is deposited. Optionally, a processing step and / or a clipping step are then performed.
    Naturally, the present invention is subject to many variations as to its implementation. Although several embodiments have been described, it is well understood that it is not conceivable to exhaustively identify all the possible modes. It is of course conceivable to replace a means described by an equivalent means to ensure good cohesion between the various metal ribbons without departing from the scope of the present invention.
    权利要求:
    Claims (14)
    [1" id="c-fr-0001]
    A manufacturing method for manufacturing a metal part, characterized in that said metal part is manufactured by stacking one after the other a plurality of layers (200) of metal strips (100) one above the other. the other, each layer (200) comprising a plurality of metal strips (100), each metal strip (100) of a layer being arranged next to at least one other metal strip of this layer, each layer of metal strips said "upper layer (205)" to be deposited above at least one other layer called "lower layer (204)" being formed by depositing and solidarisant each metal strip of the upper layer (205) on at least two metal ribbons of the lower layer (204).
    [2" id="c-fr-0002]
    2. The manufacturing method according to claim 1, characterized in that each metal strip of an upper layer (205) is secured to a lower layer (204) as it is applied to the lower layer.
    [3" id="c-fr-0003]
    3. Manufacturing method according to any one of claims 1 to 2, characterized in that each metal strip of an upper layer (205) is secured to a lower layer (204) by a technique to be selected from a list including at least one of the following techniques: brazing, welding, gluing.
    [4" id="c-fr-0004]
    4. Manufacturing method according to any one of claims 1 to 3, characterized in that at least one metal strip of a layer is attached to a ribbon of a filler material said "filler tape (52 ) ".
    [5" id="c-fr-0005]
    5. Manufacturing process according to any one of claims 1 to 4, characterized in that said metal part comprises a stack of layers extending from a layer called "first layer (201)" to a layer called "last layer (203) ", the first layer (201) representing only a lower layer (204) and the last layer (203) representing only an upper layer (205), each metal strip of said first layer (201) being held pressed against a counterform (1).
    [6" id="c-fr-0006]
    6. Manufacturing process according to claim 5, characterized in that each metal strip of said first layer (201) is held pressed by suction on the counter-form (1).
    [7" id="c-fr-0007]
    7. Manufacturing process according to any one of claims 5 to 6, characterized in that each metal strip of said first layer (201) is held pressed against the form (1) by a holding device (60).
    [8" id="c-fr-0008]
    8. Manufacturing process according to any one of claims 5 to 7, characterized in that said metal part comprising a stack of layers, at least one layer being called "intermediate layer (202)" and being disposed between the first layer ( 201) and the last layer (203), each intermediate layer (202) represents a lower layer facing one layer and an upper layer facing another layer.
    [9" id="c-fr-0009]
    9. The manufacturing method according to any one of claims 1 to 8, characterized in that a layer of metal strips partially overlaps at least one other layer.
    [10" id="c-fr-0010]
    10. The manufacturing method according to any one of claims 1 to 9, characterized in that each metal strip has a thickness between 0.05 and 0.5 millimeter, a width between 3 and 30 millimeters, and a length greater than said width.
    [11" id="c-fr-0011]
    11. Manufacturing process according to any one of claims 1 to 10, characterized in that when all the layers are deposited, a surface treatment is applied to said mechanical part.
    [12" id="c-fr-0012]
    12. The manufacturing method according to any one of claims 1 to 8, characterized in that following the deposition of a layer having a gap (250) between two empty metal ribbons, a filling product is applied in said space (250 ).
    [13" id="c-fr-0013]
    13. The manufacturing method according to any one of claims 1 to 12, characterized in that two superposed metal ribbons of two distinct layers respectively extend in two different directions.
    [14" id="c-fr-0014]
    14. The manufacturing method according to any one of claims 1 to 13, characterized in that when all the layers are deposited, a clipping step is implemented.
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    同族专利:
    公开号 | 公开日
    FR3038538B1|2017-11-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US6814823B1|1999-09-16|2004-11-09|Solidica, Inc.|Object consolidation through sequential material deposition|
    US8048253B2|2007-09-26|2011-11-01|Fiberforge Corporation|System and method for the rapid, automated creation of advanced composite tailored blanks|FR3076233A1|2017-12-29|2019-07-05|Loiretech Ingenierie|METHOD AND DEVICE FOR MANUFACTURING A SHELL OF COMPLEX SHAPE|
    EP3590654A1|2018-07-02|2020-01-08|The Boeing Company|Foil fusion additive manufacturing system and method|
    EP3710186A4|2017-11-13|2021-07-28|General Electric Company|Mobile large scale additive manufacturing using foil-based build materials|
    法律状态:
    2016-07-21| PLFP| Fee payment|Year of fee payment: 2 |
    2017-01-13| PLSC| Publication of the preliminary search report|Effective date: 20170113 |
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    2020-07-21| PLFP| Fee payment|Year of fee payment: 6 |
    2021-07-27| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1501462A|FR3038538B1|2015-07-09|2015-07-09|PROCESS FOR MANUFACTURING A METAL PIECE|FR1501462A| FR3038538B1|2015-07-09|2015-07-09|PROCESS FOR MANUFACTURING A METAL PIECE|
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