JP2019155884A - Solid molding method and solid molding system - Google Patents

Abstract

To provide a solid molding method and a solid molding system capable of suppressing deformation which occurs during solid molding.SOLUTION: The solid molding method includes the steps of: laminating and fusing plural layers; and arranging and fixing reinforcement materials 107a, 107b reaching at least two or more layers in the plural layers by using arranging means for arranging and fixing, wherein the arranging means inserts the reinforcement materials by moving approximately linearly in the travel direction.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a three-dimensional modeling method and a three-dimensional modeling system.

  As a method of three-dimensional modeling, additive manufacturing is used to generate shape data of a plurality of layers from the three-dimensional shape data of a modeled object and to stack a plurality of layers generated based on the shape data of the plurality of layers. Has been.

  Patent Document 1 describes that a three-dimensional structure having reinforcing holes is manufactured by an additive manufacturing method, and the reinforcing holes are filled with a fluid substance and cured. Thereby, according to patent document 1, it is supposed that the internal strength of a three-dimensional structure can be raised.

  In the technique described in Patent Document 1, since the reinforcing material is formed in the three-dimensional structure after the three-dimensional structure is manufactured, it is generated while the three-dimensional structure is being formed (in the middle of the three-dimensional structure). It is difficult to suppress the deformation.

  This invention is made | formed in view of the above, Comprising: It aims at providing the three-dimensional modeling method and three-dimensional modeling system which can suppress the deformation | transformation which generate | occur | produces in the middle of three-dimensional modeling.

  In order to solve the above-described problems and achieve the object, a three-dimensional modeling method according to one aspect of the present invention includes a step of laminating and fusing a plurality of layers and at least two or more layers in the plurality of layers. And a step of arranging and fixing the reinforcing material.

  According to one aspect of the present invention, there is an effect that deformation that occurs during three-dimensional modeling can be suppressed.

FIG. 1 is a diagram illustrating a configuration of a three-dimensional modeling apparatus according to the first embodiment. FIG. 2 is a process cross-sectional view illustrating the three-dimensional modeling method according to the first embodiment. FIG. 3 is a diagram illustrating a configuration of a reinforcing material arranging device according to the first embodiment. FIG. 4 is a process cross-sectional view illustrating a three-dimensional modeling method according to a modification of the first embodiment. FIG. 5 is a diagram illustrating a configuration of the three-dimensional modeling apparatus according to the second embodiment. FIG. 6 is a process cross-sectional view illustrating the three-dimensional modeling method in the second embodiment. FIG. 7 is a diagram illustrating a three-dimensional modeling method according to the second embodiment. FIG. 8 is a process cross-sectional view illustrating a three-dimensional modeling method according to the third embodiment. FIG. 9 is a process cross-sectional view illustrating a three-dimensional modeling method in a modification of the third embodiment.

  Hereinafter, a three-dimensional modeling system according to an embodiment will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to these embodiments.

(First embodiment)
The three-dimensional modeling system according to the first embodiment is a system for performing three-dimensional modeling by a layered modeling method. In the layered modeling method, shape data of a plurality of layers is generated from the three-dimensional shape data of the modeled object, modeling data indicating a layer-by-layer modeling procedure (work procedure) is generated from the shape data of the plurality of layers, and according to the modeling data A plurality of layers. The additive manufacturing method includes, for example, an electrophotographic process, a fused melt fabrication (FFF) method, a stereolithography method, a powder sintering (SLS) method, and a material jetting method. , A powder jetting (Binder Jetting) method, a sheet lamination (SL) method, a directed energy deposition (Directed Energy Deposition) method, and the like.

  For the molding of thermoplastic resins widely used in injection molding or the like, the FFF method, the SLS method, and the SL method can be regarded as typical modeling methods in the layered modeling method.

  In the FFF method, a high-temperature nozzle is moved linearly, and the powder is two-dimensionally buried in the surface to be processed. Immediately after modeling, the model can be taken out.

  In the SLS method, high-energy laser light is scanned linearly, and the powder is two-dimensionally embedded in the surface to be processed. It also takes time to cool the shaped object in the powder layer and to take out the shaped object from the powder.

  In the SL method, the surface is formed with a sheet and the contour of the shaped shape is cut into a linear shape. However, it takes time to apply an adhesive between the sheets or to perform laser fusion. It takes time to remove the material around the object.

  That is, in the additive manufacturing methods such as the FFF method, the SLS method, and the SL method, it takes a long time to obtain a modeled object. In addition, in the additive manufacturing methods such as the FFF method, the SLS method, and the SL method, any of the forming methods has a weak connection between the layers in the middle of the three-dimensional modeling, and it is difficult to obtain strength in the stacking direction.

  On the other hand, it is conceivable to manufacture a three-dimensional structure provided with reinforcing holes by the additive manufacturing method, and to fill the reinforcing holes with a fluid substance and harden them. In this case, since the reinforcing material is formed in the three-dimensional structure after the three-dimensional structure is manufactured, the deformation that occurs during the formation of the three-dimensional structure (in the middle of the three-dimensional structure) is prevented. Is difficult.

  For example, in a layered manufacturing method such as the FFF method, the SLS method, and the SL method, expansion and contraction may occur in each layer during the three-dimensional modeling, causing warping and deformation / accuracy deterioration such as contraction.

  Therefore, in the present embodiment, in the three-dimensional modeling system, when a plurality of layers are stacked, a reinforcing material straddling two or more layers is arranged to prevent deformation of the modeled object during the three-dimensional modeling.

  Specifically, the three-dimensional modeling system 1 is a system that performs three-dimensional modeling, and includes a three-dimensional modeling apparatus 100 and an arrangement apparatus 200.

  The three-dimensional modeling apparatus 100 is an apparatus that performs three-dimensional modeling by the FFF method, and is configured as shown in FIG. 1, for example. FIG. 1 is a diagram illustrating a configuration of the three-dimensional modeling apparatus 100. The three-dimensional modeling apparatus 100 includes a modeling stage 101, a filament supply unit 102, and a nozzle unit 103. The modeling stage 101 includes a stage 101a and a shaft 102a, and an elevating operation by a drive mechanism (not shown) is transmitted to the stage 101a through the shaft 102a, so that the stage 101a can be moved up and down. A build plate 105 is disposed on the stage 101a.

  The filament supply unit 102 supplies the filament 106 to the nozzle unit 103. The filament 106 is a form of a modeling material, and is solidified using, for example, a thermoplastic resin as a raw material. The filament 106 is, for example, PC (polycarbonate), PA12 (polyamide 12), PEI (polyetherimide), PBT (polybutylene terephthalate), PSU (polysulfone), PA66 (polyamide 66), PET (polyethylene terephthalate), LCP ( It can be formed of a material mainly composed of liquid crystal polymer), PEEK (polyetheretherketone), POM (polyacetal), PSF (polysulfone), PA6 (polyamide 6), PPS (polyphenylene sulfide) and the like.

  The end of the filament 106 is drawn from what is wound in the filament supply unit 206, and is led to the inlet 103 a 1 of the nozzle unit 103.

  The nozzle unit 103 includes a heating unit 103a, a nozzle unit 103b, and a housing 103c. The heating unit 103a and the nozzle unit 103b are provided inside the housing 103c. The housing 103c can move the heating unit 103a and the nozzle unit 103b in the horizontal direction in response to a horizontal movement operation by a drive mechanism (not shown).

  The heating unit 103a heats and melts the filament 106 guided to the nozzle unit 103 and supplies it to the nozzle unit 103b. The nozzle portion 103b pushes the melted filament 106 from the discharge port 103b1 toward the build plate 105. At the same time, the housing 103c moves the nozzle portion 103b in the horizontal direction. By repeating this operation, a plurality of material layers 301 to 306 of the melted filament 106 are laminated on the bill plate 105, and a laminate 300 in which the plurality of material layers 301 to 306 are laminated is formed.

  At this time, as shown in FIG. 2A, the three-dimensional modeling apparatus 100 is configured to form the opening patterns 301a, 302a, 302b, 303a, 303b, 304a, 304b, 305a, 305b, when forming the material layers 301 to 306. 306a and 306b and recess patterns 306c1 and 306c2 are formed. FIG. 2A to FIG. 2C are process cross-sectional views illustrating a three-dimensional modeling method. Thereby, the laminated body 300 which has the space 300a, 300b which can insert reinforcement material 107a, 107b is formed. The space 300a is a hole extending across the plurality of layers in the stacking direction in the stacked body 300, and includes opening patterns 301a, 302a, 303a, 304a, and 305a. The space 300b is a hole extending over the plurality of layers in the stacking direction in the stack 300, and includes opening patterns 302b, 303b, 304b, and 305b.

  In the step shown in FIG. 2B, the stacked body 300 is transferred to the placement device 200 while being placed on the build plate 105. The placement device 200 is a device for placing the reinforcing members 107a and 107b in the stacked body 300, and is configured as shown in FIG. 3, for example. FIG. 3A is a diagram illustrating a configuration of the placement device 200.

  The placement device 200 includes a driving mechanism 201 and a stage 202. The laminated body 300 is arranged together with the build plate 105 on the stage 202, and the driving mechanism 201 drives the reinforcing members 107a and 107b into the spaces 300a and 300b in the laminated body 300.

  The space is slightly smaller than the reinforcing material and is discontinuous, so that integration with the resin layer is promoted. If the reinforcing material is short and thin, it can be driven without a space.

FIG. 3B is a diagram showing a configuration of the driving mechanism 201. 211 is a plunger integrated with the reinforcing material 117, 212 is a driving electromagnetic solenoid that applies a driving force to the plunger 211, and the plunger 211 and the electromagnetic solenoid 2 constitute a driving mechanism 201.
Reference numeral 213 denotes a compression coil spring for returning the plunger 211. It is also possible to preheat the reinforcing material 117 by arranging a heat source in the driving mechanism 201.

  FIG. 3C shows various shapes of the reinforcing material 117. Known shapes and materials such as a wedge shape and a step can be used in order to integrate and fit the resin layer. In order to promote adhesion and integration with the resin, it is possible to apply a minute surface treatment or chemical treatment agent.

  Thereby, as shown in FIG. 2B, the reinforcing materials 107a and 107b extending over at least two layers of the plurality of layers 301 to 306 in a state where the plurality of stacked material layers 301 to 306 are not fused. Place. The reinforcing members 107a and 107b can have a rod-like shape. As the reinforcing materials 107a and 107b, for example, particles of iron, copper, aluminum, stainless steel (magnetic or nonmagnetic), copper iron alloy, ferrite, etc., wires, foils, and the like can be used. Thereby, the molded object 300 'reinforced with the reinforcing members 107a and 107b is formed.

  Alternatively, if higher strength is required, the step shown in FIG. 2C can be additionally selected. The laminated body 300 is heated again so that the plurality of material layers 301 to 306 are fused to each other and the plurality of material layers 301 to 306 are fused to the reinforcing members 107a and 107b. Thereby, the molded object 300 'integrated while being reinforced by the reinforcing members 107a and 107b is formed.

  As described above, according to the first embodiment, in the three-dimensional modeling system 1, the reinforcing members 107a and 107b straddling two or more material layers are arranged to reinforce the material layers 301 to 306. Thereby, in the middle of three-dimensional modeling, the mechanical strength of a model can be improved and the deformation of a model can be suppressed.

  In addition, in 1st Embodiment, although illustrated about the case where the three-dimensional model | molding apparatus 100 and the arrangement | positioning apparatus 200 in the three-dimensional model | molding system 1 are comprised as a separate apparatus, the three-dimensional model | molding apparatus 100 and the arrangement | positioning apparatus 200 are as follows. Since there is a part that moves in the same manner, at least a part may be configured as a common device. For example, the nozzle unit 103 in the three-dimensional modeling apparatus 100 and the push-in mechanism 201 in the arrangement apparatus 200 can be integrated.

  Alternatively, the reinforcing material disposed in the laminate 300 may be a reinforcing material 107c having a lateral structure as shown in FIGS. 4B and 4C. The reinforcing material 107c can be driven into the laminated body 300 in place of the reinforcing materials 107a and 107b or together with the reinforcing materials 107a and 107b. FIG. 4A to FIG. 4C are process cross-sectional views illustrating the three-dimensional modeling method in the modification of the first embodiment, and a case where the reinforcing material 107c is driven into the laminated body 300 together with the reinforcing materials 107a and 107b. Illustrated. That is, after the process similar to the process shown in FIG. 2A is performed, in the process shown in FIG. 4B, the driving mechanism 201 of the placement device 200 replaces the reinforcing material 107c with the concave pattern 306c1, the stack 300. Align to 306c2. The reinforcing material 107c has a rod-shaped portion 107c1, a rod-shaped portion 107c2, and a bridge portion 107c3. The rod-like portion 107c1 has a rod-like shape corresponding to the space 300a, and the tip thereof is disposed in the recess pattern 306c1. The rod-like portion 107c2 has a rod-like shape corresponding to the space 300b, and the tip thereof is disposed in the recess pattern 306c2. The bridge portion 107c3 is configured to extend and connect the upper end of the rod-shaped portion 107c1 and the upper end of the rod-shaped portion 107c2 in the planar direction, and is arranged in the planar direction along the upper surface of the stacked body 300. In this state, the driving mechanism 201 drives the reinforcing material 107c into the laminated body 300. That is, the rod-shaped portion 107c1 is driven from the recess pattern 306c1 into the stack 300 in the stacking direction, and the rod-shaped portion 107c2 is driven from the recess pattern 306c2 to the stack 300 in the stacking direction. As the reinforcing material 107c, a staple needle can be used. Staple needles are also suitable for strength and size. In this case, a stapler can be used as the placement device 200.

  The process shown in FIG. 4C can be additionally selected if higher strength is required. The laminated body 300 is heated again so that the plurality of material layers 301 to 306 are fused to each other and the plurality of material layers 301 to 306 are fused to the reinforcing material 107c. As a result, an integrated molded object 300 ′ is formed while being reinforced by the reinforcing material 107 c.

By arranging the reinforcing material 107c having such a lateral structure, the warpage could be reduced to 1/10. The tensile strength in the laminating direction was 29 N / mm ^{2 at} about 1/2 that of injection molding in FDM without a reinforcing material, taking a PBT resin as an example. When the needle of the reinforcing material S45C was arranged with a cross-sectional area equivalent to 6%, it was equivalent to injection molding. Some injection moldings contain glass fiber as a reinforcing filler, but the strength was 96 N / mm ² . When the needle of the reinforcing material S45C was arranged with a cross-sectional area equivalent to 12%, it was equivalent to injection molding.

(Second Embodiment)
Next, the three-dimensional modeling system 1i concerning 2nd Embodiment is demonstrated. Below, it demonstrates centering on a different part from 1st Embodiment.

  The three-dimensional modeling system 1i has a three-dimensional modeling apparatus 100i instead of the three-dimensional modeling apparatus 100 (see FIG. 1). The three-dimensional modeling apparatus 100i is an apparatus that performs three-dimensional modeling by the SLS method, and is configured as shown in FIG. 5, for example. FIG. 5 is a diagram illustrating a configuration of the three-dimensional modeling apparatus 100i.

  The three-dimensional modeling apparatus 100i has a thin layer 147 of the powder 145 formed on the modeling plate 146 by the recoat mechanism 111 to be fused by heating with a laser beam 113, and a solidified layer 147H is stacked to form a modeled article. 148 is formed. The powder 145 should be appropriately selected according to the target object 148. In the case of a resin, for example, PC (polycarbonate), PA12 (polyamide 12), PEI (polyetherimide), PBT (polyethylene). Butylene terephthalate), PSU (polysulfone), PA66 (polyamide 66), PET (polyethylene terephthalate), LCP (liquid crystal polymer), PEEK (polyetheretherketone), POM (polyacetal), PSF (polysulfone), PA6 (polyamide 6) , PPS (polyphenylene sulfide) and the like. Further, the powder 145 is not limited to a crystalline resin, and may be a mixed resin of crystalline and amorphous.

  The modeling plate 146 and the modeled object 148 are arranged in a vacuum container 302 that forms a space that can be evacuated. Nitrogen gas or the like is supplied from the gas supply port 302 in a state where the inside of the vacuum container 302 is evacuated, the inside is sealed during modeling, and the inside of the vacuum container 302 is exhausted from the exhaust device 303 after modeling.

  The modeling stage 141 that is an elevating stage moves the thin layer 147 up and down. The periphery of the modeling stage 141 is surrounded by a side wall 143 having a fixed height. The elevating device 142 is configured by a ball screw mechanism, and elevates the modeling stage 141 inside the side wall 143 at an arbitrary pitch corresponding to the thickness (for example, 0.1 mm) of the powder 145. In the present embodiment, the push-in mechanism 201 of the reinforcing material arranging device 200 can be moved in the left-right direction and the front-rear direction in FIG. 5 by driving of a driving mechanism (not shown), and the reinforcing material 107d from the upper surface is formed on the model 148. The device configuration is capable of pushing in.

  The three-dimensional modeling apparatus 100i and the arrangement apparatus 200 of the three-dimensional modeling system 1i illustrated in FIG. 5 operate as illustrated in FIGS. 6 (a) to 6 (e). FIG. 6A to FIG. 6E are process cross-sectional views illustrating a three-dimensional modeling method.

  In the process (supply process) shown in FIG. 6A, the recoat mechanism 111 lays the powder 145 on the table upper surface opening 110 on the modeling stage 141 to form the thin layer 147. As shown in FIG. 2A, a raw material container B having a supply stage 131 is provided with a modeling container A having a modeling stage 141 interposed therebetween. The raw material container B is preheated at a temperature at which the powder does not adhere. The recoat mechanism 111 moves while the moving part 134 is guided by the guide 135 while rotating the metal roller 133. The powder 145 is accumulated in the raw material container B. In the supply process, as shown in FIG. 6A, the supply stage 131 moves in the direction of arrow R <b> 1, so that the powder 145 of the raw material container B is raised to a position higher than the upper surface of the modeling container A.

  In the step shown in FIG. 6B (powder layer step), the recoating mechanism 111 moves the metal roller 133 in the direction of arrow R2 while rotating the metal roller 133 in the direction of arrow R4, so that the powder 145 in the raw material container B is moved into the modeling container A. Move to. The recoat mechanism 111 wears the powder 145 on the upper surface of the modeling container A to form a thin layer 147 in the modeling container A. Subsequently, the recoat mechanism 111 moves the metal roller 133 in the direction of the arrow R3 while rotating the metal roller 133 in the direction of the arrow R5 to form a thin layer 147 with a constant thickness on the upper surface of the modeling container A.

  The heating mechanism 120 (see FIG. 5) irradiates the powder 145 on the modeling stage 141 with the laser beam 113. The light source 121 is a carbon dioxide laser oscillator. The X-axis scanning mechanism 123 scans the laser beam 113 generated by the light source 121 with the galvano mirror 123m in the left-right direction in the figure. The Y-axis scanning mechanism 122 scans the laser beam 113 with the galvano mirror 122m in the depth direction in the figure. As a result, the region corresponding to the input data in the thin layer 147 of the modeling stage 141 is heated by the beam spot of the laser beam 113.

  In the step shown in FIG. 6C (laser heating step), the laser beam 113 heats the thin layer 147 of the modeling stage 141, melts almost instantaneously, and solidifies integrally with the underlying solid structure. A desired region of the layer 147 is solidified into the solidified layer 147H. At this time, a space in which the reinforcing material 107 is arranged is not irradiated with a beam and a minute space as powder is present.

  In the step shown in FIG. 6D (reinforcing material arranging step), the pushing mechanism 201 of the placing device 200 moves in the left and right and front and rear arrow R8 directions in the drawing to push the reinforcing material 107d into the minute space in the modeled object 148. Deploy. Then, the periphery of the reinforcing material 107d is melted to integrate the reinforcing material 107 with the modeled object 148. For example, the reinforcing material 107d may be aimed and heated by laser irradiation, and the small reinforcing material 107 can be integrated with the modeled object 148 in the entire heating and cooling process. The reinforcing material 107d can have a rod-like shape. As the reinforcing material 107d, for example, particles of iron, copper, aluminum, stainless steel (magnetic or nonmagnetic), copper iron alloy, ferrite, etc., a wire, a foil, or the like can be used.

  In the step (lowering step) shown in FIG. 6E, each time the solidified layer 147H is stacked, the modeling stage 141 is moved in the direction of the arrow R7, and the process is advanced in the thickness direction of the solidified layer 147H. When the thickness in the height direction in which the reinforcing material is disposed is thicker than the stacking pitch, the process of FIG. 6D is performed every predetermined number of times when the processes of FIG. 6A to FIG. 6E are repeated. The number of repetitions of FIG. 6D can be reduced as compared with other steps (steps shown in FIGS. 6A to 6C and 6E).

  By sequentially repeating the steps of FIG. 6A to FIG. 6E, the reinforcing material 107d is positioned in the shaped article 148 as shown in FIG. 7A. Heating and cooling are performed in such a state, and modeling is performed in a state in which deformation of the modeled object is suppressed by the reinforcing material.

  As described above, in the second embodiment, in the three-dimensional modeling system 1i, when a plurality of powder thin layers 147 are stacked, two or more thin layers are formed before the region where the reinforcing material 107d is to be disposed and its peripheral region are fused. The reinforcing material 107d straddling the layer 147 is disposed, and then a plurality of thin layers 147 are fused by laser irradiation or the like. Thereby, in the middle of three-dimensional modeling, the mechanical strength of a model can be improved and the deformation of a model can be suppressed.

  If the reinforcing material 107 is conductive, it is possible to perform selective heating such as induction heating during or after modeling. Reinforcing effects are also manifested by fitting without being fused.

  In addition, instead of the rod-shaped reinforcing material 107d as shown in FIG. 7A, a reinforcing material 107e having a lateral structure as shown in FIG. . As the reinforcing material 107c, a staple needle can be used. Staple needles are also suitable for strength and size. By arranging the reinforcing material 107c having such a lateral structure, the deformation of the modeled object can be further reduced.

(Third embodiment)
Next, a three-dimensional modeling system 1j according to the third embodiment will be described. Below, it demonstrates centering on a different part from 1st Embodiment and 2nd Embodiment.

  The three-dimensional modeling system 1j has a three-dimensional modeling apparatus 100j instead of the three-dimensional modeling apparatus 100 (see FIG. 1). The three-dimensional modeling apparatus 100j performs three-dimensional modeling by the SL method. For example, three-dimensional modeling is performed as illustrated in FIGS. Fig.8 (a)-FIG.8 (c) are process sectional drawings which show a three-dimensional modeling method.

  In the process shown in FIG. 8A, the three-dimensional modeling apparatus 100j grips the sheets 411 and 412 with the arrangement head 151j and sequentially stacks them on the build plate 401. Thereby, the laminated body 400 in which the sheet 411 and the sheet 412 are sequentially laminated is formed. Each of the sheets 411 and 412 can be any one of a long fiber, a woven fabric containing a binder resin, a knitted fabric, and a nonwoven fabric. Each of the sheets 411 and 412 can be, for example, an FRP prepreg fiber reinforced sheet. FIG. 8A illustrates a case where the sheets 411 and 412 are woven fabrics.

  In the step shown in FIG. 8B, the pushing mechanism 201 (see FIG. 3) of the placement device 200 pushes the reinforcing members 107 f and 107 g into the gaps in the stacked body 400. When the sheets 411 and 412 in the laminated body 400 are woven fabrics, there are a large number of gaps, so that the reinforcing material 107f can be easily pushed into the laminated body 400. The reinforcing material 107f can have a rod-like shape. As the reinforcing materials 107a and 107b, for example, particles of iron, copper, aluminum, stainless steel (magnetic or nonmagnetic), copper iron alloy, ferrite, etc., wires, foils, and the like can be used.

  In the step shown in FIG. 8C, the laminate 400 is heated, and a plurality of sheets 411 and 412 are melted and integrated to form a modeled object 400 '.

  As described above, in the third embodiment, in the three-dimensional modeling system 1j, when the plurality of sheets 411 and 412 are stacked, the reinforcing material 107f straddling the two or more sheets 411 and 412 is disposed before being fused, and thereafter A plurality of sheets 411 and 412 are fused. Thereby, a deformation | transformation of the molded article 400 'in the middle of three-dimensional modeling can be suppressed.

  In addition, instead of the rod-shaped reinforcing material 107f as shown in FIG. 8A, or together with the rod-shaped reinforcing material 107f, a reinforcing material 107g having a lateral structure as shown in FIG. 8A is formed. You may arrange | position in the thing 400 '. As the reinforcing material 107g, a staple needle can be used. Staple needles are also suitable for strength and size. By arranging the reinforcing material 107g having such a lateral structure, the deformation of the modeled object can be further reduced.

  Alternatively, as shown in FIGS. 9A to 9C, when a plurality of sheets 411 to 413 are sequentially laminated on the nonwoven fabric 401 k instead of the build plate 401, a long fiber reinforcing material 107 h is employed. You can also. FIG. 9A to FIG. 9C are process cross-sectional views illustrating a three-dimensional modeling method in a modification of the third embodiment. The long fiber reinforcing material 107h may be pushed directly into the gaps between the sheets 411 to 413 as shown in FIG.

  Alternatively, as shown in FIG. 9B, the reinforcing material 107h is inserted across the layers following the needle 421, and further, as shown in FIG. It may be knitted between 411-413.

1, 1i, 1j 3D modeling system 100, 100i, 100j 3D modeling apparatus 200 Arrangement apparatus

JP2015-134411A

Claims (6)

A step of laminating and fusing a plurality of layers;
Arranging and fixing a reinforcing material over at least two or more layers of the plurality of layers;
3D modeling method characterized by including. Laminating means for laminating and fusing a plurality of layers;
An arrangement means for arranging and fixing a reinforcing material over at least two or more layers of the plurality of layers;
3D modeling system characterized by comprising The three-dimensional modeling system according to claim 2, wherein the arranging means inserts the reinforcing material across the layers by a movement in a traveling direction in a substantially straight line. The three-dimensional modeling system according to claim 2, wherein the arranging means inserts the reinforcing material across the layers in a shape having a structure substantially parallel to the laminated surface and a structure substantially perpendicular to the laminated surface. The reinforcing material is a long fiber,
The three-dimensional modeling system according to claim 2, wherein the placement unit inserts the reinforcing material across the layers following the needle. The stacking means stacks a plurality of sheets as the plurality of layers,
3. The three-dimensional modeling system according to claim 2, wherein each of the plurality of sheets is one of a woven fabric, a knitted fabric, and a nonwoven fabric containing long fibers and a binder resin.

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