WO2017057333A1 - Article façonné tridimensionnel et son procédé de façonnage - Google Patents

Article façonné tridimensionnel et son procédé de façonnage Download PDF

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Publication number
WO2017057333A1
WO2017057333A1 PCT/JP2016/078399 JP2016078399W WO2017057333A1 WO 2017057333 A1 WO2017057333 A1 WO 2017057333A1 JP 2016078399 W JP2016078399 W JP 2016078399W WO 2017057333 A1 WO2017057333 A1 WO 2017057333A1
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Prior art keywords
fluororesin
heater
dimensional structure
temperature
stage
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PCT/JP2016/078399
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English (en)
Japanese (ja)
Inventor
茉莉 竹内
純 及川
智和 渡邉
安藤　大介
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ニチアス株式会社
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Publication of WO2017057333A1 publication Critical patent/WO2017057333A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing

Definitions

  • the present invention relates to a three-dimensional structure formed using an additive manufacturing technique and a method for forming the same.
  • a material extrusion method hot melt extrusion lamination method
  • Patent Documents 1 and 2 a material extrusion method
  • the three-dimensional structure can be formed.
  • the resin ABS resin and PLA resin are mainly used.
  • the resin used in the conventional three-dimensional modeling apparatus is mainly ABS resin or PLA resin
  • the obtained product is excellent in heat resistance or weather resistance to some extent, but not in chemical resistance.
  • a fluororesin is a resin that is excellent in balance in any performance such as heat resistance, weather resistance, and chemical resistance.
  • the fluororesin has not yet been applied to the conventional three-dimensional modeling apparatus because of its characteristics (difficulty) such as high melting temperature and poor adhesion between the resins.
  • the present invention pays attention to this point, and an object of the present invention is to provide a three-dimensional structure including a fluororesin using an additive manufacturing technique and a method for forming the same.
  • the inventive point of the present invention is that in a 3D printer (three-dimensional modeling apparatus), a heater that heats and melts the fluororesin and a fluororesin that melts from the heater are placed and heated. Focusing on the heating set temperature of both the stage and the melt flow rate of the fluororesin, an appropriate predetermined range of each of these associated elements was found. That is, the three-dimensional structure of the present invention is formed using a 3D printer as a means for giving a three-dimensional shape, and includes a fluororesin. Further, the three-dimensional structure according to the present invention is characterized in that a layer having a predetermined thickness including a fluororesin is laminated.
  • the 3D modeling method according to the present invention is a tertiary using a 3D printer including a heater that heats and melts the fluororesin, and a stage that places and heats the fluororesin melted from the heater.
  • a method for modeling an original model wherein the melt flow rate of the fluororesin is 30 or more and less than 70 g / 10 minutes, the heating temperature of the heater is 350 to 500 ° C., and the heating temperature of the stage is 200 to 300 ° C. And a step of controlling.
  • a three-dimensional structure including a fluororesin can be obtained using an additive manufacturing technique.
  • FIG. 1 is an explanatory view schematically showing a configuration of a general print head portion of a material extrusion type three-dimensional modeling apparatus (3D printer).
  • FIG. 2 is an explanatory diagram schematically showing the internal structure of the heater of the print head shown in FIG.
  • FIG. 3A is an enlarged explanatory view of the nozzle tip portion of the print head shown in FIG. 1
  • FIG. 3B shows the stage setting of the change in the resin temperature of the fluid material discharged from the nozzle tip portion. It is the graph represented according to temperature.
  • FIG. 4 is a table showing evaluation results of examples and comparative examples.
  • a three-dimensional structure according to an embodiment of the present invention is a three-dimensional structure (or a molded body) formed by solidifying a fluid material into a three-dimensional solid shape by a predetermined additive manufacturing technique.
  • a fluororesin is used as a material.
  • a material extrusion method is used as an additive manufacturing technique, and in a three-dimensional modeling method using the material extrusion method, a fluororesin can be applied as a fluid material.
  • the material extrusion method in the additive manufacturing technique is also called a hot melt lamination method (FDM: registered trademark of Stratasys, USA), etc., and is a group of cross-sections obtained by slicing three-dimensional CAD data of a three-dimensional model to be formed into a plurality of layers From these data, each layer is formed, and these layers are integrally laminated to manufacture a three-dimensional shaped object. More specifically, in the material extrusion system, the fluid material is deposited in a plurality of layers constituting a predetermined shape by driving the nozzle and the stage while extruding and discharging the fluid material obtained by thermally melting the solid material from the nozzle. The desired three-dimensional structure is formed by laminating and then fusing and solidifying each layer of the fluid material in the laminated state.
  • FDM hot melt lamination method
  • the three-dimensional modeling apparatus is an apparatus for modeling a three-dimensional modeled object including a fluororesin.
  • the three-dimensional modeling apparatus 100 according to the present embodiment is a material extrusion method, and the thermoplastic resin before being melted is in the form of a rod as the configuration of the print head portion.
  • Each of the fluid materials 1b is loaded with a nozzle 104 that is extruded as a fluid material 1b and laminated in a predetermined shape, and a fluid material 1b that is extruded from the nozzle 104 and laminated in layers.
  • the raw material feed roller 101 is a transport means for transporting and supplying the filament 1a in which the solid material solidified before being melted and turned into the fluid material 1b into a rod shape or string shape is supplied to the heater 102.
  • the filament 1a is a solid material obtained by solidifying the flowable material 1b in a rod-like or string-like shape, and although not particularly shown, the filament 1a wound around a reel, a spool, etc.
  • the filament 1 a is sequentially fed out and conveyed / supplied to the heater 102 as the raw material feed roller 11 rotates.
  • the fluid material 1b provided as the filament 1a is made of a fluororesin. The fluororesin that becomes the fluid material 1b will be described later.
  • the heater 102 is a heating means for heating and melting the filament 1a conveyed through the raw material feed roller 101, and is disposed on the front side (downstream side) of the raw material feed roller 101 in the conveyance direction. Specifically, as shown in FIG. 2, the heater 102 is disposed over the entire length of the flow path 102a through which the filament 1a is conveyed / passed and the flow path for heating the filament 1a passing through the flow path 12a. The filament 1a is heated and melted while passing through the heater 102 to become a flowable material 1b having a predetermined viscosity, and the lower side of the heater (downstream) Side) nozzle 104.
  • the cooling fan 103 is a cooling unit that cools the heater 102, and is disposed in the vicinity of the upper side (upstream side) of the heater 102.
  • the nozzle 104 is a modeling means for laminating the filament 1a heated and melted by the heater 102 into a predetermined shape while extruding it as the fluid material 1b.
  • the nozzle 104 and the stage 105 are driven and controlled by control means and driving means (not shown), and are horizontally arranged in a predetermined pattern based on predetermined three-dimensional data (for example, CAD data).
  • the fluid material 1b that is moved in the direction (X-axis direction and Y-axis direction) and the direction perpendicular to the Z-axis direction (Z-axis direction) and is ejected from the nozzle tip is stacked and deposited in a predetermined shape.
  • the stage 105 is a planar table / mounting means for mounting the fluid material 1b extruded from the nozzle 104 and laminated in layers, and heats the fluid material mounted at a predetermined temperature (stage setting temperature).
  • the heating / solidifying means for fusing the laminated layers of the fluid material 1b so as to form and solidify it as a shaped article.
  • the stage 105 can be set (controlled) to a desired set temperature by adjusting the number and output of the heating means provided in the inside of the stage 15 or the bottom surface. It is like that.
  • the filament 1a that is melted and becomes the fluid material 1b is conveyed and supplied to the heater 102, whereby the filament 1a heated and melted by the heater 102 is fluid.
  • the material 1b is extruded from the tip of the nozzle 104, and the nozzle 104 and the stage 105 are moved based on predetermined three-dimensional data, whereby the fluid material 1b is laminated in a predetermined shape on the stage 105, and a plurality of layers are formed. By sequentially laminating the layers in the height direction, a three-dimensional structure is finally formed.
  • the print head 100 shown in FIG. 1 conceptually and schematically represents a three-dimensional modeling apparatus used in the material extrusion method, and does not faithfully represent an actual apparatus configuration. Therefore, when implementing the three-dimensional structure and the modeling method according to the present invention, the configuration, method, operation, function, and the like of the actual three-dimensional structure apparatus are limited to the print head 100 shown in FIG. It is not a thing.
  • the flowable material of this embodiment contains a fluororesin. Fluororesin is excellent in heat resistance, weather resistance, chemical resistance, dust resistance, etc., and by using it as a flowable material for three-dimensional modeling, heat resistance, weather resistance, chemical resistance etc The strength of can be increased.
  • the fluororesin that can be used in this embodiment can be composed of a meltable fluororesin excluding polytetrafluoroethylene (abbreviation: PTFE).
  • fluororesins include, for example, polychlorotrifluoroethylene (trifluorinated resin, abbreviation: PCTFE, CTFE), polyvinylidene fluoride (abbreviation: PVDF), polyvinyl fluoride (abbreviation: PVF), ethylene It may be composed of a fluorinated ethylene copolymer (abbreviation: ETFE), an ethylene / chlorotrifluoroethylene copolymer (abbreviation: ECTFE), or the like.
  • PCTFE polychlorotrifluoroethylene
  • CTFE polychlorotrifluoroethylene
  • PVDF polyvinylidene fluoride
  • PVF polyvinyl fluoride
  • ETFE fluorinated ethylene copolymer
  • ECTFE ethylene / chlorotrifluoroethylene copolymer
  • the fluororesin is composed of a perfluoroalkoxy fluororesin (abbreviation: PFA), a tetrafluoroethylene / hexafluoropropylene copolymer (abbreviation: FEP), which is a perfluorinated resin particularly excellent in chemical resistance. More preferably, it may be composed of a PFA resin that is particularly excellent not only in chemical resistance but also in heat resistance, weather resistance and dust resistance.
  • the fluororesin can be composed of one or more of the fluororesins listed above. Further, the melting point of the fluororesin is less than 350 ° C., and the melt flow rate is configured to be 30 or more and less than 70 g / 10 minutes.
  • a fluororesin is not limited to the said structure.
  • the melting point of the fluororesin may be 250 ° C. or higher and lower than 350 ° C., 270 ° C. or higher and 330 ° C. or lower, 280 ° C. or higher and 320 ° C. or lower, 290 ° C. or higher and 310 ° C. or lower, and around 300 ° C.
  • the lower limit of the melt flow rate of the fluororesin can be 40 g / 10 min or more, 50 g / 10 min or more, 60 g / 10 min or more, and the upper limit can be 68 g / 10 min or less, 65 or less.
  • the fluid material of the present embodiment further includes a nucleating agent.
  • a nucleating agent By increasing the number of spherulites by providing the fluororesin with a nucleating agent that serves as a crystal nucleus in this way, it is possible to maintain the surface smoothness of the fluororesin and increase the contact area between the resins. Can be improved.
  • Such a nucleating agent may be a polymer obtained by polymerizing only tetrafluoroethylene, or a copolymer obtained by copolymerizing a small amount of a comonomer, a metal, or an ammonium base in addition to tetrafluoroethylene. Also good.
  • the content of the nucleating agent is not particularly limited.
  • the content of the nucleating agent is 0.01 to 20.0% by mass, preferably 0.01 to 15.0% by mass, with respect to 100% by mass of the fluororesin. More preferably, it may be composed of 0.01 to 10.0% by mass.
  • the fluid material of this embodiment is comprised including only a fluororesin and a nucleating agent, it is not limited to this structure.
  • the flowable material can be configured to include only a fluororesin, or a fluororesin, a nucleating agent, and other resins.
  • the three-dimensional modeling method of the present embodiment performed using a fluid material made of the above fluororesin will be described.
  • the filament 1a made of solidified fluororesin is set on the raw material feed roller 101 of the printing head 100 of the three-dimensional modeling apparatus, and the raw material feed roller 101 is driven. Then, the filament 1a is conveyed and supplied to the heater 102 (see FIG. 1).
  • the filament 1a conveyed to the heater 102 is heated and softened / melted by the heating means 102b disposed around the entire length of the flow path 102a while passing through the flow path 102a in the heater.
  • the heating means 102b of the heater 102 is set (controlled) at a predetermined temperature (heater set temperature), and heats the filament 1a over the entire length of the heating means 102b (flow path 102a).
  • the filament 1a is heated at a predetermined temperature (heater set temperature) by the heating means 102b for the time it is located in the flow path 102a.
  • the nozzle 104 is heated and melted / dissolved by the heater 102, and the filament 1a is extruded from the nozzle 104 as a fluid material 1b and discharged, and is mounted and stacked on the stage 105.
  • the nozzle 104 and the stage 105 are driven and controlled by control means / drive means (not shown), and in a horizontal direction (X-axis direction and Y-axis direction) in a predetermined pattern based on predetermined three-dimensional data (for example, CAD data). And moved in the vertical direction (Z-axis direction).
  • predetermined three-dimensional data for example, CAD data
  • the stage 105 is set (controlled) at a predetermined temperature (stage set temperature), and the fluid material 1b pushed out from the nozzle 104 and laminated in a layered manner has a predetermined temperature (stage set temperature) on the stage 105. It is molded and solidified as a modeled object while the laminated layers of the flowable material 1b that are heated and laminated are fused. In this manner, by repeatedly laminating the melted thin thread-like / string-like flowable material 1b in a single stroke, finally, a predetermined three-dimensional structure is formed and manufactured. Become. The obtained three-dimensional structure is formed by laminating layers having a predetermined thickness containing a fluororesin.
  • Each layer in a plurality of layers having a predetermined thickness can be configured to have the same thickness or different thicknesses, and the thickness of each layer is not particularly limited.
  • the thickness of each layer is adjusted by adjusting the diameter of the fluid material by appropriately controlling the drive of the raw material feed roller and the set temperature of the heater, or changing the filament that is a fluid material to another filament having a different diameter. It can be implemented by exchanging. Needless to say, the movement amount, movement range, number of movements, and the like of the nozzle 104 and the stage 105 can be arbitrarily set / changed according to the shape and size of the three-dimensional structure to be formed, the lamination thickness, and the like. .
  • the filament 1a that is the solid material that becomes the heat-meltable fluid material 1b is heated by the heater 102 at a predetermined heater setting temperature.
  • the final shaped object is formed while the fluid material 1b melted by the heater 102 is heated on the stage 105 at a predetermined stage setting temperature.
  • the heater set temperature of the heater 102 and the stage set temperature are set as follows.
  • the melting point t0 of the solid material (filament 1a) is less than 350 ° C., specifically, it can be configured at 250 ° C. or more and less than 350 ° C., and the melting point t0 of the present embodiment is 310 ° C.
  • the set temperature t1 of the heater 12 is 350 to 500 ° C., preferably 400 to 470 ° C., more preferably 425 to 450 ° C.
  • the set temperature t2 of the stage 15 is 200 to 300 ° C., preferably 260 to 280 ° C.
  • the fluid material 1b is on the stage 105.
  • Tg glass transition temperature
  • the fluid material 1b is on the stage 105.
  • the layers immediately solidify, and the layers of the fluid material 1b in the laminated state cannot be fused.
  • the temperature of the stage 105 is higher than the heating temperature of the heater 102, the fluid material 1b is not solidified while being melted, and the modeled article cannot be modeled.
  • the set temperature of the heater 102 must be at least higher than the melting point t0 of the solid material in order to melt the filament 1a which is a solid material.
  • the set temperature of the heater 102 is too high, for example, when the solid material is at a high temperature at which it is thermally decomposed, the solid material volatilizes or burns.
  • the heater 102 is set to a temperature substantially equal to the melting point t0 of the solid material so that such thermal decomposition does not occur, for example, the fixing material (filament 1a) remains in the heater 102 (flow channel 102a). Since it is easily affected by the residence time, it may be difficult to sufficiently melt and soften the filament 1a, or unnecessary heating may be performed on the already melted material.
  • the set temperature of the heater 102 exceeds the melting point (less than 350 ° C.) of the solid material so that the solid material can be reliably and rapidly melted and dissolved to be discharged as the flowable material 1b.
  • the temperature is set to a predetermined temperature, specifically 350 ° C. to 500 ° C. *
  • the length of the heater 102 along the conveyance direction of the filament 1a can be set longer than the conventional apparatus, for example, the lower limit of the heating time of the raw material can be set to, for example, 1 second or more, 5 seconds or more, 10 seconds or more, 15 seconds or more, 20 seconds or more, and the upper limit of the heating time It can be set to 90 seconds or less, 80 seconds or less, 70 seconds or less, 60 seconds or less, and the like. In the present embodiment, the heating time is adjusted to be about 60 seconds.
  • FIG. 3A is an enlarged explanatory view of the tip portion of the nozzle 104 of the print head 100 according to the present embodiment
  • FIG. 3B is a resin of the fluid material 1b that is discharged from the tip portion of the nozzle 104.
  • FIG. It is the graph which calculated
  • the melting point of PFA which is a fluororesin
  • the set temperature of the heater 102 is set to a temperature higher than the melting point of PFA, for example, 400 ° C.
  • the set temperature of the stage on which the fluid material 1b heated and melted by the heater 102 is extruded and mounted / laminated is 25 ° C. to 300 ° C., 25 ° C., 100 ° C., 200 ° C., 300 ° C. Set to a different temperature.
  • the resin temperature at the nozzle tip when the fluid material 1 b heated and melted at 400 ° C. by the heater 102 is pushed out from the nozzle 104 is calculated.
  • the resin temperature of the fluid material 1b pushed out from the tip of the nozzle 104 is almost 200 ° C. immediately after. After that, it dropped to near 50 ° C and then cooled to about 50 ° C after 0.5 seconds. Further, when the set temperature of the stage 105 was set to 100 ° C., the resin temperature at the tip of the nozzle 104 was approximately 250 ° C., and then dropped to nearly 100 ° C. after 0.5 seconds. In addition, when the set temperature of the stage 105 was set to 200 ° C., the resin temperature at the tip of the nozzle 104 was approximately 300 ° C., and then dropped to nearly 200 ° C. after 0.5 seconds.
  • the set temperature of the stage 105 when the set temperature of the stage 105 is set to 300 ° C., the resin temperature at the tip of the nozzle 104 is approximately 350 ° C., and after that, it is approximately 300 ° C. even after 0.5 seconds, and is near the melting point of PFA. The temperature of was maintained. From the above, the set temperature of the stage 105 is preferably 300 ° C., and at least 220 ° C. or more, so that the resin temperature at the tip of the nozzle 104 of the fluid material 1b can be maintained at or above the melting point. become able to. Note that the set temperature of the stage 105 is not particularly illustrated, but can be set and changed to a desired set temperature by adjusting the number of heating means provided in the stage 105 or on the bottom side, the output, and the like.
  • the three-dimensional structure according to the present embodiment that is modeled and manufactured as described above can be manufactured as prototypes and sample products of various products, similar to a three-dimensional structure that is formed by a conventional material extrusion method or the like. it can.
  • the above-described fluororesin is used as the material of the three-dimensional structure, the cured and finished molded product is excellent in strength, heat resistance, weather resistance, chemical resistance, and the like.
  • the use of the three-dimensional structure is not particularly limited.
  • semiconductor manufacturing equipment transportation equipment such as automobiles and airplanes, chemical plant equipment, fuel storage / transport equipment, electronic equipment, fuel cells, and power generation equipment.
  • Various products such as consumer goods can be targeted.
  • piping equipment members that require heat resistance, weather resistance, chemical resistance, etc., such as valves, joints, gaskets, packing, and cleanliness used when manufacturing semiconductor products are required.
  • Use of a member such as a holding jig, a conveying device, and a stocker can be mentioned.
  • a three-dimensional structure can be obtained by using a fluororesin as a fluid material for the three-dimensional structure. That is, in the three-dimensional structure and the modeling method according to the present embodiment, in the three-dimensional structure forming apparatus (3D printer), the heater that heats and melts the fluororesin and the fluororesin that has melted from the heater are placed. Paying attention to the heating set temperature of both the stage to be heated and the melt flow rate of the fluororesin, find an appropriate predetermined range for each of these associated elements, and set each element to an appropriate predetermined range (control or By adjusting), a three-dimensional structure including a fluororesin can be stably obtained with good moldability. And the modeled model has excellent heat resistance, weather resistance, chemical resistance, etc. due to the characteristics of the fluororesin, and can model and manufacture a new three-dimensional model that has never existed before. .
  • the apparatus configuration is short and the apparatus configuration can be simple, and is particularly suitable for simple and inexpensive 3D printers, rapid prototyping, and the like.
  • the additional modeling technique enables modeling of a modeled object in a clean state, unlike the case of modeling by cutting out from a bulk.
  • complex three-dimensional shapes can be shaped and manufactured by a single molding process, and there is no need for molds or other equipment, and the desired three-dimensional shape can be formed quickly and efficiently at low cost. You can get things.
  • FIG. 4 shows the evaluation results of Examples and Comparative Examples.
  • the evaluation in FIG. 4 is the formability of the produced three-dimensional structure, “ ⁇ ” indicates a good molding state in which the three-dimensional structure is not deformed or damaged, and “ ⁇ ” indicates the three-dimensional structure. Although some deformation and breakage have occurred in some parts, it shows a molding state that can guarantee the desired shape as a whole, and ⁇ ⁇ '' indicates a molding state that can not guarantee the desired shape due to deformation or breakage in the three-dimensional structure. Show.
  • the present invention will be further described with reference to the following examples, but the present invention is not limited in any way by the following examples.
  • Example 1 (Production of 3D objects) Using a general-purpose 3D printer (UP-Plus 2 manufactured by Delta-Microfacotry) system, the nozzle heater temperature for heating the raw material is 450 ° C, the stage heating temperature is 280 ° C, and the PFA resin has a melt flow rate of 60 g / 10 min. As a result, the formability of the three-dimensional structure was confirmed. As a result, the resin melted from the nozzle tip was fixed on the stage, and a three-dimensional structure in which the resin was laminated was obtained.
  • UP-Plus 2 manufactured by Delta-Microfacotry UP-Plus 2 manufactured by Delta-Microfacotry
  • Example 2 and 3 Except that the nozzle heater temperature was set to 300 ° C. and 500 ° C., the three-dimensional structure produced in the same manner as in Example 1 was confirmed. When the nozzle heater temperature is 350 ° C., the resin discharge amount from the nozzle is insufficient, and when the nozzle heater temperature is 500 ° C., the discharge amount is excessive, so that a part of the three-dimensional structure is slightly deformed or damaged. The desired shape was generally secured as a whole.
  • Example 4 and 5 The nozzle heater temperature is set to 450 ° C., and the resin is stably discharged. However, when the stage heating temperature is 200 ° C., a part of the discharged resin is peeled off without being fixed, and the stage heating temperature is as high as 300 ° C. The resin part was softened, and all of the three-dimensional structures were deformed, but the desired shape was secured as a whole.
  • Example 6 Even when the nozzle heater temperature is set to 450 ° C. and the stage heating temperature is set to 280 ° C., when the resin melt flow rate is 30 g / 10 minutes, the amount of resin discharged is small, and a part of the three-dimensional structure is slightly deformed. Although the breakage occurred, the desired shape was generally secured as a whole.
  • the three-dimensional structure and the modeling method according to the present invention have been described by taking as an example the case of applying to an additive manufacturing technique of a material extrusion method in which a fluid material is thermally melted.
  • the present invention is not only applied to the material extrusion method, but can also be applied to other types of additive manufacturing techniques.

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Abstract

L'invention concerne un article façonné tridimensionnel comprenant une résine fluorée et son procédé de façonnage à l'aide d'une technique de fabrication additive. L'article façonné tridimensionnel selon l'invention, qui est façonné à l'aide d'une imprimante 3D (dispositif de façonnage tridimensionnel 100) à titre de moyen pour conférer une forme tridimensionnelle, est conçu comme un article façonné tridimensionnel comprenant une résine fluorée.
PCT/JP2016/078399 2015-09-30 2016-09-27 Article façonné tridimensionnel et son procédé de façonnage WO2017057333A1 (fr)

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JP2021109808A (ja) * 2020-01-10 2021-08-02 日本碍子株式会社 半導体製造装置部材

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US20200223130A1 (en) * 2017-07-20 2020-07-16 Signify Holding B.V. Hiding optical defect lines on parts of fdm printed luminaires with metallic look
JP2019142089A (ja) * 2018-02-20 2019-08-29 株式会社リコー 三次元造形物及び三次元造形装置
KR102174299B1 (ko) * 2018-12-18 2020-11-04 한화솔루션 주식회사 3차원 프린팅 방법 및 이에 의한 3차원 프린팅 제품

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