TW201622963A - Manufacturing method and manufacturing apparatus - Google Patents

Abstract

An additive manufacturing apparatus is provided. The apparatus comprises a build region. The apparatus comprises a construction material deposition unit arranged for relative reciprocating movement in at least a first direction across the build region for depositing a construction material incrementally in layers on the build region from a construction material deposition position on the construction material deposition unit. The apparatus comprises a first binding unit arranged for relative reciprocating movement in at least the first direction across the build region for binding construction material selectively at positions on the layers of construction material deposited on the build region from a first binding position on the first binding unit. The apparatus comprises a second binding unit arranged for relative reciprocating movement in at least the first direction across the build region for binding construction material selectively at positions on the layers of construction material deposited on the build region from a second binding position on the second binding unit. The first binding position, the construction material deposition position and the second binding position are arranged in order in the first direction. Also disclosed is a configuration having two deposition positions arranged either side of a binding position, as well as manufacturing methods implementable using the apparatus.

Description

Manufacturing method and manufacturing device

The present invention relates to a method of manufacturing an object, and in particular to a method of manufacturing an object, wherein the object system is constructed from a series of layers of building material, during or after deposition of the layer, and depositing a layer Prior to successive layers, the regions of each layer are selectively bonded together. The invention also relates to a manufacturing apparatus suitable for use in implementing such methods.

Three-dimensional printing is an additive manufacturing technique in which a continuous layer of material is deposited into a construction area, and portions of each layer are bonded to each other, and an object to be formed is constructed by the combined portions of the continuous layers. .

A three-dimensional printing technique employs a process for depositing a layer of continuous particulate material (e.g., a powder) in a structured region from a row of printheads passing over and over the construction region. Portions of the build material are selectively bonded together during deposition of the layer or after deposition of the layer. For example, using a technique similar to ink jet printing, a liquid binder can be sprayed onto the powder from the printhead. The bonding agent may be an adhesive that cures or hardens over time, thereby bonding the particles of the particulate material together, for example, by using an air drying adhesive, by curing with contact with air or Hardening; it can also be cured afterwards, for example, in the case of using an ultraviolet curing adhesive, using UV curing. Alternatively, radiation can be selectively applied to each layer In part, the regions of the layer are partially joined together, for example by applying a suitable high intensity laser beam or focused infrared light.

The layer of deposited powder is manufactured with sufficient thinness whereby when the successive powder layers are deposited with selectively bonded regions, the bonded portion of each layer extends from the boundary with the underlying layer The layers are formed to form a continuous three-dimensional structure extending through the layers.

In order to make 3D printing competitive with other manufacturing processes, 3D printing must be able to quickly create the object to be formed.

According to a first aspect of the invention, there is provided an additive manufacturing apparatus. The device includes a construction area. The apparatus includes a build material deposition unit configured to relatively reciprocate across the build region in at least a first direction over the build region from a build material on the build material deposition unit At the deposition site, a building material is deposited layer by layer. The apparatus includes a first coupling unit configured to reciprocate relative to the construction region at least in a first direction to selectively engage the first bonding site on the first bonding unit The portion deposited on the layer of the building material on the construction region is combined with the construction material. The apparatus includes a second coupling unit configured to relatively reciprocate across the construction region in at least a first direction to selectively engage the second attachment site on the second coupling unit The portion deposited on the layer of the building material on the construction region is combined with the construction material. The first bonding portion, the deposition material deposition portion, and the second bonding portion are sequentially disposed along the first direction.

According to a second aspect of the invention, there is provided an additive manufacturing apparatus. The device includes a construction area. The device includes a first build material deposition unit that is configured to at least In a first direction, the construction area is relatively reciprocated across the construction area, and a first construction material is deposited layer by layer from the deposition material deposition site on the first construction material deposition unit. The apparatus includes a coupling unit configured to relatively reciprocate across the construction region in at least a first direction, the attachment portion from the bonding unit being selectively deposited on the construction region The part on the layer of the construction material is combined with the construction material. The apparatus includes a second build material deposition unit configured to relatively reciprocate across the build region in at least a first direction to over the build region from the second build material deposition unit A second structuring material deposition site deposits a second structuring material layer by layer. The first structuring material deposition site, the bonding site, and the second structuring material deposition site are sequentially disposed along the first direction.

In one embodiment, the deposition and bonding unit is disposed on a common carrier that is configured to reciprocate in the first direction.

In one embodiment, the deposition and bonding units are disposed on separate carriers, each carrier being configured to reciprocate in the first direction.

In one embodiment, a smoothing element is disposed between each of the deposition and bonding sites of the deposition and bonding sites, and between the deposition and bonding sites and the next one of the deposition or bonding sites. .

In one embodiment, each bonding unit is a binder deposition unit that is configured to selectively deposit a binder material at a location on a previously deposited build material, thereby selectively incorporating the build material .

In one embodiment, the build material deposition units are configured to obtain a build material from a common reservoir.

According to a third aspect of the invention, there is provided an additive manufacturing method. this method The invention comprises a process for depositing a construction material from a deposition material on a deposition unit of a construction material, and depositing a construction material in a first layer on a construction area, wherein the deposition material deposition unit is at least in a first direction, horizontally The more the construction area moves relatively. The method includes a program from a first bonding site on a first bonding unit, coupled to a selected portion of the first layer of the building material, wherein the first bonding unit is at least in the first direction The more the construction area moves relatively. The first bonding site is disposed on a first side of the deposition site of the structuring material. The first side is a side located in a direction opposite to the first direction. The method includes a process for depositing a build material from a build material deposition unit, and depositing a build material in the second layer on the first layer, wherein the build material deposition unit is associated with the first In the opposite direction, the transverse movement of the construction area. The method includes a program from a second bonding site on a second bonding unit, coupled to a selected portion of the second layer of the building material, wherein the second bonding unit is in the first direction, traversing The construction area moves relatively. The second bonding site is disposed on a second side of the deposition site of the structuring material. The second side is a side located in the first direction.

According to a fourth aspect of the invention, there is provided an additive manufacturing method. The method includes a process of depositing a build material from a first build material deposition site on a first build material deposition unit, wherein the first build material deposition cell system In a first direction, the traversing region is relatively moved. The method includes a program from a binding site on a bonding unit that incorporates a selected portion of the first layer of the building material, wherein the bonding unit is in the first direction and moves relatively transversely across the construction region . The first structuring material deposition site is disposed on a first side of the bonding site. The first side is a side located in a direction opposite to the first direction. The method includes a process of depositing a second build material deposition site on a second build material deposition unit, and depositing a build material in the second layer on the first layer, wherein the build material The deposition unit moves relatively traversing the construction region in a direction opposite to the first direction. The second structuring material deposition site is disposed on a second side of the bonding site. The second side is a side located in the first direction. The method includes a program from the binding site on the bonding unit, coupled to a selected portion of the second layer, wherein the bonding unit is opposite to the first direction and moves relative to the constructed region .

In one embodiment, the deposition and bonding unit is disposed on a common carrier that is configured to reciprocate in the first direction.

In one embodiment, the deposition and bonding units are disposed on separate carriers, each carrier being configured to reciprocate in the first direction.

In one embodiment, the method includes a process for smoothing a deposited layer of build material using a smoothing element after depositing each layer of build material, the smoothing element being disposed in the deposit for the deposited layer The portion and the bonding site for the deposited layer.

In one embodiment, each bonding unit selectively deposits a binder material at a location on the previously deposited build material, thereby selectively bonding the build material.

In one embodiment, the build material deposited by each of the build material deposition units is obtained from a common reservoir.

In one embodiment, the bonding is performed simultaneously with the deposition of the first direction and the second direction.

10‧‧‧Three-dimensional printing device

11‧‧‧Table

12‧‧‧ Well

13‧‧‧ platform

15‧‧‧Print head

15a‧‧‧ combination unit

15b‧‧‧Powder Dispenser

15c‧‧‧ combination unit

15d‧‧‧Roller pair

15e‧‧‧Supply tube

15f‧‧‧Ink nozzle

15g‧‧‧ supply conduit

15h‧‧‧blade valve unit

15i‧‧‧ supply port

15j‧‧‧Supply tube

15k‧‧‧Ink nozzle

16‧‧‧ Track

2a‧‧ layer

2b‧‧ layer

20‧‧‧Printing device

21‧‧‧Table

22‧‧‧ Well

23‧‧‧Support platform

25a‧‧‧ Carrier

25b‧‧‧ Carrier

25c‧‧‧Vector

26‧‧‧ Track

In order to further understand the present invention and to show how the present invention exerts its efficacy, it will be accompanied by BRIEF DESCRIPTION OF THE DRAWINGS The drawings are provided by way of example only. FIG. 1 to FIG. 3 are schematic diagrams showing a manufacturing apparatus showing steps in an embodiment of the present invention; FIG. 4 is a view showing the use of the present invention. A schematic view of a printing head; and [Figs. 5 to 7] are schematic views of a manufacturing apparatus showing steps in another embodiment of the present invention.

The present invention relates to a three-dimensional printing technique in which a material system is constructed by a series of successive deposition layers in which portions of successive deposition layers are bonded together and combined with portions of the underlying layer. . In particular, the present invention relates to three-dimensional printing of a powder bed in which layers of powder are successively deposited, the regions of each layer being bonded together to form the desired object before the next successive layer is deposited. part.

The present invention will be exemplified by a three-dimensional printing system associated with a powder bed and an ink jet head wherein the bonding agent is selectively sprayed from a scanning ink jet head onto a previously deposited powder bed. However, the invention is not limited thereto, and the concepts disclosed herein can be applied to other additive manufacturing techniques involving the bonding of previously deposited powder layers, including selective laser sintering and local melt fabrication.

1 is a schematic view showing a three-dimensional printing apparatus 10 of a powder bed and an ink jet head. The three-dimensional printing apparatus 10 has a printing table 11 formed by penetrating the upper surface of the printing table 11. In the well 12, a movable platform 13 is formed which is arranged to move in the well 12 in a first direction Z, which in the configuration of Figure 1, is perpendicular to the table 11 Surface plane. The platform 13 is supported by a collapsible support (not shown) which is contracted by a control method to effectively lower the platform 13 and penetrate the well 12. For example, the collapsible mount can have a toothed portion by means of a gear And the transmission of the rack, the support is contracted by the control method of the operation of the toothed wheel. Alternatively, the collapsible support can be hydraulically contracted or otherwise contracted by other means that may be desired.

The apparatus 10 also includes a printhead 15 that is disposed in a first direction X across the well 12 and supported above the well as it translates. In the embodiment of FIG. 1, the printhead 15 is supported on a track 16 that is configured to move along the track 16. For example, the printhead 15 can be moved over the well 12 in a reciprocating manner by a drive belt, a drive screw, a built-in drive motor, or any other suitable method. Importantly, the print head 15 can traverse the full extent of the well 12 in the X direction.

It should be noted that the diagram of FIG. 1 depicts a cross section of the XZ plane, however, the well 12 has an extension in a third direction Y that is perpendicular to the X and Z directions, for example. Said that its extension extends beyond this page. The table 11, the well 12, and the platform 13 also have an extension in this direction, but the shape or size in this direction is not further limited. For example, when viewed along the Z direction, the well 12 may have a rectangular or square shape in plan view, but may have other shapes, including polygons or circles. The cross section of the well 12 does not change in the Z direction, however, the platform 13 has a plane to closely conform to the vertical wall of the well 12. Accordingly, there is a space between the vertical wall of the well 12 and the platform 13 below the plane of the table 11, in which the powder can be deposited such that there is substantially no powder from the side of the well 12 and the platform 13 Leak between the edges. The platform 13 can have a sealing means at each edge, such as an elastic blade, thereby providing a seal.

The print head 15 also has an extension in the Y direction whereby the print head 15 is traversable across the entire range of the well 12 in the X-Y cross section. This can be achieved by a print head 15 that is placed over the entire length of the well in the Y direction. Alternatively, this can be accomplished by providing a row of print heads 15 with one or more members configured to reciprocate in the Y direction to scan the plane of the well in a grid such that when the print head traverses in the X direction In the well, continuously or stepwise, the components of the print head are scanned in the Y direction. Cross each point through the well.

The configuration as described above is a conventional three-dimensional printing apparatus for powder beds and ink jets which are conventionally known in the art.

In the embodiment of Fig. 1, the printhead 15 includes a powder dispenser 15b adapted to dispense powder over the well 12 as the printhead 15 traverses the well. In the present embodiment, the powder dispenser 15b can have a dispensing opening extending over the entire width of the well in the Y direction such that when the print head 15 traverses the well 12, a full layer can be dispensed from the dispensing opening Powder. In another configuration, the powder dispenser 15b can be in the form of a scanning member that dispenses a continuous row of powders in the Y direction, which are sequentially disposed in the X direction. The print head 15 also includes two joining units 15a and 15c which are respectively disposed on both sides of the powder dispenser 15b in the X direction. In the present embodiment, each of the bonding units 15a and 15c includes an ink jet head that is configured to eject the bonding agent onto the well 12 as the print head traverses the well 12. When the print head traverses the well 12, by selectively spraying the bond, portions of each layer of the powder dispensed by the powder dispenser 15b are selectively bonded together to form the desired manufacture. a layer of an object.

The print head 15 may additionally include one or more smoothing elements, such as a doctor blade or smoothing roller, which is disposed on the print head 15 and is adapted to level when the print head 15 traverses the well 12. The upper surface of the powder layer being dispensed. For example, the smoothing element can be disposed between the powder dispenser 15b and the bonding unit 15c and/or between the powder dispenser 15b and the bonding unit 15a. The smoothing element can be fixed or have an adjustable position at least in the Z direction.

Further, in order to use a bonding agent that requires active curing (for example, by ultraviolet light), the printing head 15 may include a curing unit such as an ultraviolet lamp, which is accompanied by either or both of the bonding units. The curing unit can be respectively disposed on either side of the bonding unit, so that the curing unit is solid The bonding agent that has just been dispensed by the bonding unit, or the bonding agent of the previous layer is cured to the layer of the bonding agent that will be dispensed in the current printing pass.

In one configuration, each of the bonding units 15a and 15c can be configured as a scanning ink jet that operates in a single row in the Y direction before or during advancement of the printing head in the X direction, at a predetermined The droplets of the binding agent are deposited at a location such that the binder dispenser selectively deposits the binder in each successive row. Alternatively, each binder dispenser may comprise a single ink jet head extending to the full extent of the well in the Y direction and having a plurality of binder dispensing ports arranged in at least one row in the Y direction, when When the print head 15 traverses the well 12 in the X direction, the bond can be deposited to a selected location in the XY plane of the well by driving the respective binder dispensing ports. These solutions may also be combined, wherein each of the binder dispensers may be disposed to translate in the Y direction, but may also include a plurality of dispensing ports disposed at least in the Y direction. For example, in order to achieve a relatively adjacent spacing between the dispensing openings in the Y direction, the dispensing openings of the printhead 15 may also be arranged in the X direction as, for example, a slanted linear array.

The operation of the embodiment of Fig. 1 will now be described. In Fig. 1, the upper surface of the platform 13 of the embodiment of Fig. 1 is flat and parallel to the XY plane, which is below the surface of the table 11, contracting a short distance to provide a construction area (or construction) Space), in which a powder layer can be dispensed. The depth of the construction region, and the depth of the powder layer to be subsequently distributed over the platform 13, can be selected such that all depths of the layer can be selectively combined in a particular region through the action of the bonding unit. So that a layer can be bonded to a bonded portion of the previous layer, avoiding unintended integration with a substantial portion of the previous layer.

From the configuration shown in Figure 1, the print head 15 traverses the well 12 in the X direction to deposit a powder layer from the dispensing opening of the powder dispenser onto the well on the surface of the platform 13. And when When the print head traverses in the X direction, the bond dispenser 15a selectively deposits a bonding agent onto a portion of the deposited layer to selectively bond portions of the layer together. In the configuration of Figure 1, the powder and the binder are simultaneously dispensed in the same pass, and in a position in the X direction in which the binder dispenser can dispense the binder, the powder is dispensed to the combination The position of the dispenser is relatively advanced, even if other printing modes are possible. In particular, when time is required to stabilize the powder prior to dispensing of the binder, the powder may be deposited in the X direction in a first pass, wherein the binder may be deposited in the -X direction in a return pass.

As shown in FIG. 3, once the layer 2a is deposited, the platform 13 is further lowered, for example, by the desired thickness of the lower layer, and the print head 15 is moved in the opposite (-X) direction, depositing another A layer 2b is on top of the first layer 2a. In order to make the binder and powder in the printing direction of the advancement or return of the traversing construction region 12, it can be distributed in the same pass, and the advancement of the movement between FIG. 1 and FIG. 2, the powder dispenser 15b The binder dispenser 15a is activated, and in the return passage between FIG. 2 and FIG. 3, the powder dispenser 15b and the binder dispenser 15c are activated. Accordingly, the conventional device will waste the print head returning to the original position as shown in FIG. 1 as compared to the printing of the conventional device, which can only be completed in advancement, and before another layer can be deposited and bonded. Time, the embodiment of Figure 1 can utilize both forward and return passes to deposit and bond a single layer. Accordingly, printing using embodiments of the present invention is significantly faster.

In some configurations, the bonding agent may not be deposited at all on the first layer on the table 13, thereby allowing the printed object to be easily separated from the upper surface of the table 13.

Figure 4 shows a schematic view of the print head 15 clearly showing the dual bond units 15a and 15c and the powder dispenser 15b. The bonding units 15a and 15c each have an ink jet head 15f and 15k which is provided with a bonding agent dispensing port which is connected to an external combination by supply pipes 15e and 15j. Agent storage. Each binder unit can have a different binder reservoir, or a common binder reservoir can be shared between the binder units. The print head 15 can be attached to an external reservoir, for example, by a flexible tube of suitable length. The powder dispenser 15b is located between the bonding unit 15a and the bonding unit 15c, which is connected to a powder reservoir by a supply conduit 15g. A powder reservoir can be provided to be supported on the printhead 15, or can be external to the printhead 15, and the powder can be suitably fluidized from the external reservoir to the supply conduit 15g. The dispenser 15b also includes a leaf valve unit 15h for actuating the powder distribution from the supply conduit 15g through the supply port 15i. However, the powder distribution through the supply port 15i can be selectively actuated by other methods known in the art.

The print head 15 can be driven in the X direction along the track 16 by the drive roller pair 15d, in which the drive roller pair 15d is individually held in pairs, and for example, the drive roller pair 15d can be Electrically driven to effectively advance and return to the print head 15 in the X direction. In an embodiment of the invention, the print head 15 is integrally wrapped in the outer casing 151 such that the bonding units 15a and 15c and the powder dispenser 15b share a common carrier.

However, an embodiment is possible, for example, wherein the print head 15 as shown in FIG. 4 is divided into three separate carriers, each carrier being configurable with its respective drive device, the carriers respectively comprising The unit 15a, the powder distributor 15b, and the coupling unit 15c are combined. The driving of the respective carriers in the X direction can be implemented separately and, in particular, can be implemented at different speeds, respectively.

For example, as shown in FIG. 5, the printing device 20 has three carriers 25a, 25b, and 25c, each of which is disposed in the X direction, above the well 22 formed in the table 21, along a common track. The translation is 26 to deposit and bond the layers of material disposed over the movable support platform 23. although The carriers 25a and 25c are respectively provided with bonding units, and the carrier 25b is provided with a powder dispenser. From the configuration shown in Figure 5, carriers 25 and 25c traverse well 22 in the X direction whereby a powder layer is deposited from powder dispenser 25b, as shown in Figure 6. As may be desired, the carriers 25b and 25c may be moved at the same speed and in an adjacent formation, or the combining unit 25c may be started earlier or may move relatively faster than the powder unit 25b.

From the configuration shown in Fig. 6, the bonding unit 25a is then moved across the deposited powder layer 2a in the X direction to selectively bond the portions of the layer 2a together. After the bonding unit 25a has completely passed through the well 22, a configuration as shown in FIG. 7 is achieved in which all of the carriers 25a, 25b, and 25c are disposed on one side of the well 12. Of course, it is not necessary to wait for the powder dispenser 25b to reach the other side of the well 22 before the combining unit 25a begins its movement. In fact, in some cases, for example, when the moving speed of the powder dispenser 25b is reduced compared to the bonding unit 25a, for example, in order to deposit a uniform layer or a powder of sufficient depth, for the bonding unit 25a, Preferably, the movement is initiated before the dispensing unit 25b completes its movement. In this configuration, alternatively, the joining unit 25a may complete its movement at the same time that the powder dispenser 25b has completed its movement or shortly thereafter.

In the above embodiment, when a curing unit or a smoothing unit is present, it may be provided on a separate carrier or may be suitably disposed on one or more of the bonding agent units or the carrier of the powder dispenser.

In some embodiments, the printhead can be configured to dispense different bonding agents or use different bonding methods for bonding unit 25a and bonding unit 25c. Although the foregoing disclosure relates to a printhead that reciprocates at least a first linear direction above the print area, the previously described disclosure can also be applied to a print head, the configuration of which is Radially extending from a central axis of a construction region and sweeping a circular path around the axis to deposit powder onto the circular construction region, and The regions of the powder are selectively bonded together.

Although the foregoing disclosure is exemplarily related to the case where the two bonding unit is disposed on either side of a reciprocating direction of the powder dispenser, the foregoing disclosure may be equally applied to The arrangement wherein the two powder dispensers are disposed on either side of a single binder unit. The configuration can be constructed with reference to Figure 1 and its description, except that elements 15a and 15c are used as a powder dispenser and element 15b is used as a bonding unit, for example, configured to dispense a bonding agent. In this configuration, the powder dispensers can be configured to dispense the same or different powders. In one embodiment, a ceramic powder and a metal powder can be used as two different powders; or two different ceramic powders, two different metal powders, or two different powders of the same material. , for example: have different particle sizes. Thus, in a configuration, all of the foregoing disclosures may be equivalently implemented.

In particular, in addition to the three-dimensional printing techniques specifically mentioned, the foregoing disclosures are suitable for use in a wide variety of three-dimensional printing techniques, including the use of ceramic, polymer and metal construction materials, reactivity, ultraviolet light. Three-dimensional printing technology for curing, contact curing or other jet bonding agents, or other bonding techniques such as laser or thermal bonding. Specifically, one embodiment uses a metal powder and a polymer binder. In this embodiment, after the object is removed from the printing device, a sintering process can be applied to the metal powder.

The foregoing disclosure is merely illustrative. It is to be expected that a person of ordinary skill in the art to which the invention pertains may modify, substitute, select, or alter the previously disclosed disclosure as needed to conform to a particular engineering. Demand.

10‧‧‧Three-dimensional printing device

11‧‧‧Table

12‧‧‧ Well

13‧‧‧ platform

15‧‧‧Print head

15a‧‧‧ combination unit

15b‧‧‧Powder Dispenser

15c‧‧‧ combination unit

16‧‧‧ Track

Claims (15)

An additive manufacturing apparatus comprising: a construction area; a construction material deposition unit configured to reciprocate relative to at least a first direction across the construction area to be above the construction area Constructing a deposition site of the structuring material on the material deposition unit, depositing a structuring material layer by layer; a first bonding unit configured to reciprocate relative to the at least one first direction across the construction region a first bonding site on the first bonding unit, selectively bonded to the structuring material at a portion deposited on the layer of the structuring material on the structuring region; and a second bonding unit configured to be used at least a first direction transversely reciprocating across the construction region to selectively construct a portion of the second bonding unit on the second bonding unit selectively deposited on a layer of the building material on the construction region The material, the first bonding portion, the deposition material deposition portion, and the second bonding portion are sequentially disposed along the first direction. An additive manufacturing apparatus comprising: a construction area; a first build material deposition unit configured to reciprocate relative to the construction area at least in a first direction over the construction area, Depositing a first structuring material layer by layer from a deposition material deposition site on the first structuring material deposition unit; a bonding unit configured to reciprocate relatively across the construction region at least in a first direction Movement, in combination with a structuring material, at a portion of the structuring material deposited on the structuring region from a bonding site on the bonding unit; a second build material deposition unit configured to relatively reciprocate across the build region in at least a first direction over the build region from the second build material deposition unit And depositing a second structuring material layer by layer, the first structuring material deposition portion, the bonding portion, and the second structuring material deposition portion are sequentially disposed along the first direction. The additive manufacturing apparatus of claim 1 or 2, wherein the deposition and bonding units are disposed on a common carrier, the common carrier being configured to reciprocate in the first direction. The additive manufacturing apparatus of claim 1, 2 or 3, wherein the deposition and bonding units are disposed on respective independent carriers, each carrier being configured to reciprocate in the first direction. The additive manufacturing apparatus according to any one of claims 1 to 4, wherein a smoothing element is sequentially disposed between each deposition and bonding portion of the deposition and bonding sites, and the deposition and bonding Between the site and the next such deposit or bond site. The additive manufacturing apparatus according to any one of claims 1 to 5, wherein each of the bonding units is a binder deposition unit which is provided for selectively depositing a portion on the previously deposited building material a material to thereby selectively bind the building material. The addition manufacturing apparatus according to any one of claims 3 to 6, wherein the construction material deposition unit is provided for obtaining a construction material from a common storage. An additive manufacturing method comprising: depositing a construction material from a deposition material on a deposition unit of a construction material, and depositing a construction material in a first layer on a construction area, wherein the deposition material deposition unit is at least in a first direction, Moving across the constructed area relatively; a first bonding portion on a first bonding unit, coupled to a selected portion of the first layer of the building material, wherein the first bonding unit moves relative to the construction region at least in the first direction, The first bonding site is disposed on a first side of the deposition site of the structuring material, the first side is a side located in a direction opposite to the first direction; and a deposition material is deposited from a deposition material deposition unit a portion, in the second layer on the first layer, depositing a build material, wherein the build material deposition unit is in a direction opposite to the first direction, relatively moving across the construction region; and from a second a second bonding portion on the bonding unit, combined with a selected portion on the second layer of the building material, wherein the second bonding unit is in the first direction, and relatively moves across the construction region, the second bonding portion And being disposed on a second side of the deposition site of the structuring material, the second side being a side located in the first direction. An additive manufacturing method comprising: depositing a building material from a first building material deposition site on a first building material deposition unit, and depositing a building material in a first layer on a construction region, wherein the first building material deposition unit is a first direction traversing the construction region relative to each other; a bonding portion on a bonding unit, a selected portion on the first layer of the structuring material, wherein the bonding unit is in the first direction, traversing The construction area is relatively moved, and the first construction material deposition portion is disposed on a first side of the joint portion, the first side is located on a side opposite to the first direction; Constructing a second structuring material deposition site on the material deposition unit, depositing a structuring material in the second layer on the first layer, wherein the structuring material deposition unit is in the first direction In a reverse direction, the second construction material deposition portion is disposed on a second side of the joint portion, the second side is a side located in the first direction; and The bonding portion on the bonding unit is coupled to the selected portion on the second layer, wherein the bonding unit is relatively movable in a direction opposite to the first direction across the construction region. The additive manufacturing method according to claim 8 or 9, wherein the deposition and bonding unit is disposed on a common carrier, the common carrier being configured to reciprocate in the first direction. The additive manufacturing method of claim 8, 9 or 10, wherein the deposition and bonding unit are disposed on respective independent carriers, each carrier being configured to reciprocate in the first direction. The additive manufacturing method according to any one of claims 8 to 11, further comprising: after depositing each layer of the structuring material, smoothing a deposited layer of the structuring material using a smoothing element, the smoothing element being disposed for The deposition site of the deposited layer and the bonding site for the deposited layer. The additive manufacturing method according to any one of claims 8 to 12, wherein each of the bonding units selectively deposits a binder material at a portion on the previously deposited building material, thereby selectively bonding the building material. The additive manufacturing apparatus according to any one of claims 1 to 3, wherein the structuring material deposited by each of the structuring material deposition units is obtained from a common storage. The additive manufacturing method according to any one of claims 8 to 14, wherein the bonding system is performed simultaneously with the deposition of the first direction and the second direction, respectively.