NL2021152B1 - Device and method for continuous extrusion-based fiber additive manufacturing - Google Patents

Device and method for continuous extrusion-based fiber additive manufacturing Download PDF

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Publication number
NL2021152B1
NL2021152B1 NL2021152A NL2021152A NL2021152B1 NL 2021152 B1 NL2021152 B1 NL 2021152B1 NL 2021152 A NL2021152 A NL 2021152A NL 2021152 A NL2021152 A NL 2021152A NL 2021152 B1 NL2021152 B1 NL 2021152B1
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NL
Netherlands
Prior art keywords
fiber
extrusion
outlet
supply system
fibre
Prior art date
Application number
NL2021152A
Other languages
Dutch (nl)
Inventor
Jan Logtenberg Maarten
Leonard Albertus Janssen Lucas
Original Assignee
Cead B V
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Filing date
Publication date
Application filed by Cead B V filed Critical Cead B V
Priority to NL2021152A priority Critical patent/NL2021152B1/en
Priority to PCT/NL2019/050372 priority patent/WO2019245363A1/en
Priority to EP19743065.5A priority patent/EP3810386A1/en
Application granted granted Critical
Publication of NL2021152B1 publication Critical patent/NL2021152B1/en

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    • 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
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205—Means for applying layers
    • B29C64/209—Heads; Nozzles
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/264—Arrangements for irradiation
    • B29C64/268—Arrangements for irradiation using laser beams; using electron beams [EB]
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/24—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/56—Tensioning reinforcements before or during shaping

Abstract

A B S T R A C T The present invention relates to a device for continuous extrusion- based fibre additive manufacturing, comprising an extrusion chamber comprising at least one base polymer material inlet for feeding a base polymer material to the chamber and an extrusion outlet for extruding the base polymer material from the extrusion chamber and a fibre feed system, the fibre feed system comprises at least one fibre inlet for feeding a fibre material to the fibre feed system and a fibre outlet for discharging the fibre material from the fibre feed system. The extrusion outlet and fibre outlet are positioned such that the continuous fibre additive is formed after the base polymer material is extruded from the extrusion outlet of the extrusion chamber. The present invention further relates to a method for continuous extrusion-based fibre additive manufacturing and a fibre additive obtained by the method of the present invention.ABSTRACT The present invention relates to a device for continuous extrusion-based fiber additive manufacturing, including an extrusion chamber including at least one base polymer material inlet for feeding a base polymer material to the chamber and an extrusion outlet for extruding the base polymer material from the extrusion chamber and a fiber feed system, the fiber feed system comprises at least one fiber inlet for feeding a fiber material to the fiber feed system and a fiber outlet for discharging the fiber material from the fiber feed system. The extrusion outlet and fiber outlet are positioned such that the continuous fiber additive is formed after the base polymeric material is extruded from the extrusion outlet or the extrusion chamber. The present invention further relates to a method for continuous extrusion-based fiber additive manufacturing and a fiber additive obtained by the method of the present invention.

Description

Description
The present invention relates to a device for continuous extrusionbased fibre additive manufacturing. The present invention further relates to a method for continuous extrusion-based fibre additive manufacturing and a product obtained by such method.
Additive manufacturing is a technology used to efficiently manufacture three-dimensional parts layer-by-layer. Unlike subtractive technologies that require additional time and energy to remove excess material, additive manufacturing deposits material only where it is needed, making very efficient use of both energy and raw materials. Additive manufacturing may be accomplished using polymers, alloys, resins or similar feed stock materials that transition from a liquid or powder to a cured, solid component. In order to construct features such as cantilevered beams, overhangs or arches, sacrificial supports must typically be deposited to counteract the force of gravity. Once the part is complete, the support structures are removed using various mechanical and chemical means. The creation and removal of support structures wastes material and energy and adds time to the build.
In order to increase the strength and stiffness of additive manufacturing, use can be made of discontinuous or chopped fibre reinforced feed stock enabling “out of the oven” additive manufacturing capability. The chopped fibres significantly increase the thermal conductivity and reduce the coefficient of thermal expansion of the material. This allows extremely large parts to be built at room temperature and with significantly less distortion than non-reinforced materials. However, although building parts of discontinuous fibre reinforced feed stock provides significant advantages in terms of room temperature processing and dimensional stability, the discontinuous fibres are limited in terms of strength and still require a sacrificial structure for supporting cantilevered or arched features.
In order to further improve the additive manufacturing capability, efforts have been made to provide additive manufacturing wherein a continuous fibre reinforcement is embedded into a base polymer material and wherein the continuous fibre additive is extruded from an extrusion nozzle.
The present invention now provides a device for continuous extrusion-based fibre additive manufacturing, comprising an extrusion chamber comprising at least one base polymer material inlet for feeding a base polymer material to the chamber and an extrusion outlet for extruding the base polymer material from the extrusion chamber, and a fibre feed system, the fibre feed system comprises at least one fibre inlet for feeding a fibre material to the fibre feed system and a fibre outlet for discharging the fibre material from the fibre feed system. It was found that by providing a device wherein the extrusion outlet and fibre outlet are positioned such that the continuous fibre additive is formed after the base polymer material is extruded from the extrusion outlet of the extrusion chamber, the device facilitates the continuous fibre additive manufacturing. It was found that by providing the device of the present invention, the device is, for example, capable of producing about 25 kilograms of continuous fibre additive per hour. It was further found that by providing the device of the present invention, the device is capable of producing continuous fibre additive 24 hours a day, with a minimum of disruptions due to, for example, clogging of the outlets of the extrusion chamber and fibre feed system. It was further found that by providing the device of the present invention, the device may be used for industrial application,
i.e. in printing industrial-sized parts, e.g. boat parts as large as about 4 metres by 2 metres by 1,5 metres. It is noted that other sized parts may be produced as well by using the device of the present invention.
The fibre feed system may be configured to traverse the extrusion chamber wherein the fibre outlet of the fibre feed system coincides with the extrusion outlet of the extrusion chamber. In a preferred embodiment, the central axis of the extrusion outlet of the extrusion chamber coincides with the central axis of the fibre outlet of the fibre feed system. Even further preferred the fibre outlet of the fibre feed system debouches in or extends from the extrusion outlet. It was found that by providing a combined extrusion outlet, i.e. combining the extrusion outlet with the outlet of the fibre feed system, the device of the present invention provides in a robust and reliable way to continuous fibre additive manufacturing. In a more preferred embodiment of the present invention, the fibre outlet of the fibre feed system slightly extends from the extrusion outlet.
The fibre feed system may be connected to a vacuum unit for applying a vacuum to the fibre feed system. By application of a vacuum to the fibre feed system, the base polymer material extruded from the extrusion outlet adheres in an improved manner to the fibre material extruded from the fibre outlet of the fibre feed system resulting in a continuous fibre additive having a further increased strength and stiffness compared to the continuous fibre additives known in the art. It was noted that the formation of air bubbles between the fibre material and the base polymer material is further reduced by applying a vacuum to the fibre feed system.
In order to provide the optimal continuous fibre additives characteristics, the vacuum applied to the fibre feed system extends from the vacuum unit in the direction of the fibre outlet of the fibre feed system. Preferably the inner diameter of the fibre feed system is chosen such that the diameter is larger than the maximum outer diameter the fibre material fed to the fibre feed system. In such configuration, the vacuum path extending from the vacuum unit to the fibre outlet of the fibre feed system is kept free from obstacles caused by the fibre material.
The fibre feed system may further comprise drive means for driving the fibre material through the fibre feed system. Typically, the drive means of a fibre feed system comprises two cooperating rotating drives. However, it is noted that other kinds of drive means may be used to move the fibre material through the fibre feed system.
The at least one base polymer material inlet may be connected to a base polymer feeding system, such as an extruder. By providing granules of a base polymer material, the base polymer feeding system may be configured to heat the granules of the base polymer material in order to provide an extrudable base polymer material.
The present invention further relates to a method for continuous extrusion-based fibre additive manufacturing, the method comprises the steps of:
a) providing a fibre material and a base polymer material;
b) feeding the fibre material to a fibre feed system and feeding the base polymer material to a base polymer material inlet of an extrusion chamber; and
c) extruding the fibre material from a fibre outlet of the fibre feed system and extruding the base polymer material from an extrusion outlet of the extrusion chamber to form a continuous fibre additive, wherein the extruded continuous fibre additive is formed after the base polymer material is extruded from the extrusion outlet of the extrusion chamber. By formation of the continuous fibre additive downstream the extrusion outlet of the extrusion chamber, clogging of the extrusion outlet is herewith prevented. As a result, the method of the present invention provides in an increase of amount of continuous fibre additive manufacturing up to an amount of 25 kilograms per hour. Even further, due to the decreased occurrence of maintenance problems, e.g. clogging of the extrusion outlet, the method of the present invention may be applied for the full 24 hours a day.
In a preferred embodiment the method of the present invention comprises step b) wherein the base polymer material fed to the extrusion chamber is allowed to enclose the fibre feed system provided with the fibre material.
In a further embodiment of the present invention the method comprises the step of applying a vacuum to the fibre feed system. Preferably the vacuum is applied to the fibre feed system during performance of all the steps of the method of the present invention. By providing a vacuum to the fibre feed system, a continuous fibre additive can be produced having further improved strength and stiffness properties. The improved product characteristics may be a result of the improved adherence of the base polymer material to the fibre material and/or the reduction in the formation of any air bubbles between the base polymer material and the fibre material.
Given the increased strength and stiffness characteristics of the continuous fibre additive produced by the method of the present invention, the present invention further relates to a continuous fibre additive obtainable by the method of the present invention wherein the method comprises applying a vacuum to the fibre feed system.
It is noted that the fibre material suitable for use in the present invention may include continuous fibre reinforcements that are uncut, which provide a considerable strength advantage over chopped fibres. Such fibre material may comprise of a tow or bundle of unidirectional, multidirectional or woven filaments and may be round-shaped, ribbon-shaped, or otherwise shaped. The filaments may be made from carbon, glass, aramid or other materials having diameters of approximately 5 to 10 micrometres. Depending on the size and strength requirements of the final part, filament counts can be approximately 2,000-50,000, although lower or higher counts and/or varying diameters may also be used. The fibre material may comprise dry tows, i.e. filaments wherein no additional material is present. Preferably, the fibre material comprises impregnated fibre materials, i.e. a fibre material (filaments) pretreated with a polymer material, preferably the same base polymer material of the present invention. Alternatively, the fibre material may comprise a metal wire (e.g. a wire rope or may comprise glass fibre. In particular the use of a glass fibre as fibre material is preferred in order to provide further (sensing) technology into the fibre additive. For example, the advantageous properties of glass fibre may be used to transport data/information through the fibre additive.
The base polymer material suitable for use in the present invention may include a reinforcing polymer material. Such reinforcing polymer material may be selected from the group consisting of a thermoplastic polymer, a thermoset polymer and a combination thereof. Exemplary thermoplastic materials are: ABS, Polycarbonate, PLA, ULTEM™ brand Resin, Polyetherimide (PEI), NYLON and PPSE/PPSU for example. These thermoplastic polymer examples may be combined together or combined with thermoset polymers. Exemplary thermoset materials are: Bis-Maleimid (BMI), Epoxy (Epoxide), Phenolic (PF), Polyester (UP), Polyimide, Polyurethane (PUR) and Silicone for example. These thermoset polymers may be combined together or combined with thermoplastic polymers. It is noted that any kind of thermoplastic polymer may be used, i.e. low temperature to high temperature thermoplastic polymers.
The invention is further elucidated on the basis of the non-limitative exemplary embodiment shown in the following figure. Herein:
Figure 1 shows a schematically represented part of the device of the present invention.
Figure 1 shows device 1 suitable for continuous fibre additive 2 manufacturing. Device 1 comprises extrusion chamber 3 comprising extrusion inlet 4 and extrusion outlet 5 for feeding to and discharging from extrusion chamber 3 base polymer material 6. Device 1 further comprises fibre feed system 7 for feeding fibre material 8 to fibre outlet 9 of fibre feed system 7. Fibre feed system 7 is positioned in extrusion chamber 3 such that base polymer material 6 is able to enclose fibre feed system 7 and such that fibre outlet 9 coincides with extrusion outlet 5. In figure 1, fibre outlet 9 slightly extends from extrusion outlet 5.
Further shown in figure 1 is vacuum unit 10 connected to fibre feed system 7. Vacuum unit 10 is configured to apply a vacuum on fibre feed system 7 such that the formation of air bubbles at fibre outlet 9 is prevented. Further, by applying a vacuum the adherence of base polymer material 6 to fibre material 8 is further improved. Figure 1 further shown drive means 11 in the form of two cooperating wheels and extruder 12 for extruding base polymer material 6 to extrusion chamber 3.

Claims (14)

CONCLUSIESCONCLUSIONS 1. Inrichting voor het vervaardigen van op extrusie gebaseerde continue vezeladditief, omvattende een extrusiekamer omvattende ten minste een inlaat voor basispolymeermateriaal voor het aan de extrusiekamer toevoeren van basispolymeermateriaal en een extrusie-uitlaat voor het van de extrusiekamer extruderen van het basispolymeermateriaal; en een vezeltoevoersysteem, het vezeltoevoersysteem omvattende ten minste een vezelinlaat voor het aan het vezeltoevoersysteem toevoeren van vezelmateriaal en een vezeluitlaat voor het van het vezeltoevoersysteem afvoeren van het vezelmateriaal, met het kenmerk dat de extrusie-uitlaat en vezeluitlaat zodanig zijn gepositioneerd dat het continue vezeladditief wordt gevormd nadat het basispolymeermateriaal is gextrudeerd van de extrusie-uitlaat van de extrusiekamer.An apparatus for manufacturing an extrusion-based continuous fiber additive, comprising an extrusion chamber comprising at least one inlet for basic polymeric material for supplying basic polymeric material to the extrusion chamber and an extrusion outlet for extruding the basic polymeric material from the extrusion chamber; and a fiber supply system, the fiber supply system comprising at least one fiber inlet for feeding fiber material to the fiber supply system and a fiber outlet for discharging the fiber material from the fiber supply system, characterized in that the extrusion outlet and fiber outlet are positioned such that the continuous fiber additive is positioned formed after the base polymer material has been extruded from the extrusion outlet of the extrusion chamber. 2. Inrichting volgens conclusie 1, met het kenmerk dat het vezeltoevoersysteem is ingericht voor het doorkruisen van de extrusiekamer en waarbij de vezeluitlaat van het vezeltoevoersysteem samenvalt met de extrusie-uitlaat van de extrusiekamer.Device as claimed in claim 1, characterized in that the fiber supply system is adapted for crossing the extrusion chamber and wherein the fiber outlet of the fiber supply system coincides with the extrusion outlet of the extrusion chamber. 3. Inrichting volgens conclusie 1 of 2, met het kenmerk dat de hartlijn van de extrusie-uitlaat van de extrusiekamer samenvalt met de hartlijn van de vezeluitlaat van het vezeltoevoersysteem.Device according to claim 1 or 2, characterized in that the axis of the extrusion outlet of the extrusion chamber coincides with the axis of the fiber outlet of the fiber supply system. 4. Inrichting volgens een der voorgaande conclusies, met het kenmerk dat de vezeluitlaat van het vezeltoevoersysteem uitmondt in of zich uitstrekt van de extrusie-uitlaat van de extrusiekamer.Device as claimed in any of the foregoing claims, characterized in that the fiber outlet of the fiber supply system opens into or extends from the extrusion outlet of the extrusion chamber. 5. Inrichting volgens een der voorgaande conclusies, met het kenmerk dat het vezeltoevoersysteem is verbonden met een vacuümeenheid voor toepassing van een vacuüm op het vezeltoevoersysteem.Device as claimed in any of the foregoing claims, characterized in that the fiber supply system is connected to a vacuum unit for applying a vacuum to the fiber supply system. 6. Inrichting volgens conclusie 5, met het kenmerk dat het op het vezeltoevoersysteem toegepaste vacuüm zich uitstrekt van de vacuümeenheid in de richting van de vezeluitlaat van het vezeltoevoersysteem.Device as claimed in claim 5, characterized in that the vacuum applied to the fiber supply system extends from the vacuum unit in the direction of the fiber outlet of the fiber supply system. 7. Inrichting volgens conclusie 5 of 6, met het kenmerk dat de binnendiameter van het vezeltoevoersysteem groter is dan de maximale buitendiameter van het aan het vezeltoevoersysteem toegevoerde vezelmateriaal.7. Device as claimed in claim 5 or 6, characterized in that the inner diameter of the fiber supply system is larger than the maximum outer diameter of the fiber material supplied to the fiber supply system. 8. Inrichting volgens een der voorgaande conclusies, met het kenmerk dat het vezeltoevoersysteem verder vezelaandrijfmiddelen omvat voor het door het vezeltoevoersysteem aandrijven van het vezelmateriaal.Device as claimed in any of the foregoing claims, characterized in that the fiber supply system further comprises fiber drive means for driving the fiber material through the fiber supply system. 9. Inrichting volgens claim 8, met het kenmerk dat de vezelaandrijfmiddelen twee samenwerkende roterende schijven omvat.Device as claimed in claim 8, characterized in that the fiber drive means comprises two cooperating rotating discs. 10. Inrichting volgens een der voorgaande conclusies, met het kenmerk dat de ten minste ene inlaat voor basispolymeermateriaal is verbonden met een voedingssysteem voor basispolymeermateriaal, zoals een extrudeerinrichting.Device as claimed in any of the foregoing claims, characterized in that the at least one inlet for basic polymer material is connected to a feed system for basic polymer material, such as an extruder. 11. Werkwijze voor het vervaardigen van op extrusie gebaseerde continue vezeladditief, de werkwijze omvattend de stappen van:A method for manufacturing an extrusion-based continuous fiber additive, the method comprising the steps of: a) het verschaffen van een vezelmateriaal en een basispolymeermateriaal;a) providing a fiber material and a base polymer material; b) het toevoeren aan een vezeltoevoersysteem van het vezelmateriaal en het toevoeren aan een inlaat voor basispolymeermateriaal van een extrusiekamer van het basispolymeermateriaal; enb) supplying the fiber material to a fiber supply system and supplying an inlet for base polymer material from an extrusion chamber of the base polymer material; and c) het extruderen van een vezeluitlaat van het vezeltoevoersysteem van het vezelmateriaal en het extruderen van een extrusie-uitlaat van de extrusiekamer van het basispolymeermateriaal ter vorming van een continue vezeladditief, met het kenmerk dat het geëxtrudeerde continue vezeladditief wordt gevormd nadat het basispolymeermateriaal is gextrudeerd van de extrusie-uitlaat van de extrusiekamer.c) extruding a fiber outlet from the fiber feed system of the fiber material and extruding an extrusion outlet from the extrusion chamber of the base polymer material to form a continuous fiber additive, characterized in that the extruded continuous fiber additive is formed after the base polymer material is extruded from the extrusion outlet of the extrusion chamber. 12. Werkwijze volgens conclusie 11, met het kenmerk dat in stap b) het aan de extrusiekamer toegevoerde basispolymeermateriaal wordt toegestaan het met vezelmateriaal voorziene vezeltoevoersysteem te omsluiten.Method according to claim 11, characterized in that in step b) the base polymer material supplied to the extrusion chamber is allowed to enclose the fiber supply system provided with fiber material. 13. Werkwijze volgens claim 11 of 12, met het kenmerk dat de werkwijze verder het toepassen van een vacuüm op het vezeltoevoersysteem omvat.A method according to claim 11 or 12, characterized in that the method further comprises applying a vacuum to the fiber supply system. 14. Continue vezeladditief verkrijgbaar middels de werkwijze volgens conclusie 13.A continuous fiber additive obtainable by the method according to claim 13. '1"1
NL2021152A 2018-06-19 2018-06-19 Device and method for continuous extrusion-based fiber additive manufacturing NL2021152B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL2021152A NL2021152B1 (en) 2018-06-19 2018-06-19 Device and method for continuous extrusion-based fiber additive manufacturing
PCT/NL2019/050372 WO2019245363A1 (en) 2018-06-19 2019-06-18 3d printing device and 3d printing method with continuous extrusion-based fibre additive
EP19743065.5A EP3810386A1 (en) 2018-06-19 2019-06-18 3d printing device and 3d printing method with continuous extrusion-based fibre additive

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NL2021152A NL2021152B1 (en) 2018-06-19 2018-06-19 Device and method for continuous extrusion-based fiber additive manufacturing

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WO2019245363A1 (en) 2019-12-26
WO2019245363A8 (en) 2020-04-23

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