WO2020200426A1 - Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d - Google Patents

Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d Download PDF

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Publication number
WO2020200426A1
WO2020200426A1 PCT/EP2019/058265 EP2019058265W WO2020200426A1 WO 2020200426 A1 WO2020200426 A1 WO 2020200426A1 EP 2019058265 W EP2019058265 W EP 2019058265W WO 2020200426 A1 WO2020200426 A1 WO 2020200426A1
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WO
WIPO (PCT)
Prior art keywords
filament
plasticizer
alcohol
weight
printing
Prior art date
Application number
PCT/EP2019/058265
Other languages
English (en)
Inventor
Peter Daute
Manfred Jaeckel
Martin Schaefer
Juergen Waldmann
Original Assignee
Emery Oleochemicals Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Emery Oleochemicals Gmbh filed Critical Emery Oleochemicals Gmbh
Priority to PCT/EP2019/058265 priority Critical patent/WO2020200426A1/fr
Publication of WO2020200426A1 publication Critical patent/WO2020200426A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/10—Formation of a green body
    • B22F10/18—Formation of a green body by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1017—Multiple heating or additional steps
    • B22F3/1021—Removal of binder or filler
    • B22F3/1025—Removal of binder or filler not by heating only
    • 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
    • B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
    • 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
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the present invention relates to a filament suitable to be used in a 3D printing device, wherein the filament comprises a. metallic powder, a thermoplastic binder and processing additive(s).
  • the invention also relates to a process for producing a shaped body comprising the step of printing a shaped green body using the filament according to the invention.
  • a filament according to the invention in a 3D printing device.
  • the invention also relates to the use of a binder of the invention for the production of a filament for 3D printing devices.
  • powder injection molding processes including metal injection molding (MIM) and ceramic injection molding (CIM) were established.
  • MIM metal injection molding
  • CIM ceramic injection molding
  • finely- powdered metal or ceramic material is mixed with a measured amount of binder material to form a 'feedstock' capable of being handled by plastic processing equipment through a process known as injection mold forming.
  • the molding process allows complex parts to be shaped in a single operation and in high volume.
  • the final products of such processes are commonly component items used in various industries and applications.
  • the molding step involves the use of injection molding machines and results in the formation of a so-called green body.
  • This green body undergoes a further step in which the binder is typically at least partially removed before the body is heated to temperatures where the metal or ceramic components are sintered.
  • a feedstock is required also for more modem processes for forming prototypes such as 3D printers.
  • the feedstock for 3D printing devices has been found to require different properties as will be explained below.
  • Creating a feedstock for 3D printing devices is not an easy feat as there are multiple parameters that should be adjusted.
  • the final feedstock product must in particular meet the flexibility, stiffness, stickiness and viscosity required for successful 3D printing.
  • FDM fused deposition modelling
  • FFF fused filament fabrication
  • FDM Fused deposition modelling
  • thermoplastic filament itself has a significant effect on the variability in an FDM extruder’s flow. In other words, depending on its material the feedstock filament contributes to volumetric flow errors.
  • the diameter of the filament used can be minimized and a filament can be manufactured with tighter diameter tolerances to reduce volumetric flow errors.
  • WO 2016/004985 discloses sinterable feedstock for use in 3D printing devices.
  • metallic materials are divided into ferrous materials, non-ferrous metals, hard metals, wMch are metal matrix composites, and soft metals.
  • non-ferrous metals such as titanium, silver, gold or nickel alloys and in hard metals, metal nitrides or metal carbides such as tungsten carbide are important representatives of these substance classes.
  • the difficulty in processing these materials using 3D printing lies in the fact that the melting points of the components are very high. This means that 3D printing is usually only possible using a complex laser melting process (SLM). The lasers required for this must have high output powers and are correspondingly complex and expensive, A further disadvantage of the SLM process is the high temperature differences which can lead to distortion of the molded bodies. Likewise, components with thin wall thicknesses cannot be manufactured using this process. Even different alloys with liquid phases such as hard metals cannot be processed by the processes known in the prior art.
  • the stickiness is at least one property by which a feedstock suitable for 3D printing devices differs from a feedstock that is commonly used in powder injection molding (PIM) or powder extrusion molding (PEM) processes.
  • a feedstock suitable for 3D printing requires good bonding ability of the individual mass strands between each other in order to produce a 3D structure with high resolution and good reproducibility.
  • This property of the feedstock is however not beneficial with powder injection molding (PIM) or powder extrusion molding (PEM), in particular ⁇ if these applications involve a smoothing calendar, a slit die or similar means.
  • PIM or PEM applications such stickiness is rather undesirable, and is generally avoided by preparing a specific feedstock that does not have this property, for example by including anti-adhesion additives.
  • the present invention provides a filament suitable to be used in a 3D printing device, wherein the filament comprises or consists of
  • thermoplastic binder comprising a thermoplastic polymer and at least one plasticizer
  • a further aspect of the invention relates to a process for producing a shaped body, the process comprising the following steps:
  • step (ii) removing at least partially the at least one plasticizer from the shaped green body; and(iii)sintering the shaped green body obtained from step (ii) to obtain said shaped body.
  • a filament according to the invention in a 3D printing device.
  • the invention also relates to a green body producible by mixing a metal powder according to the invention and a thermoplastic binder according to the invention.
  • binder as defined in the invention for the production of a filament for 3D printing devices.
  • alkyl refers to a saturated straight or branched carbon chain.
  • an alkyl as used herein is a alkyl and more preferably is a alkyl, i.e. having 1, 2,
  • carbon atoms e.g. is selected from methyl, ethyl, propyl, isopropyl, butyl, Ao-butyl, teri-butyl, pentyl or hexyl, heptyl, octyl, 2-ethylhexyl, nonyl, decyl, behenyl, isostearyl and stearyl.
  • Alkyl groups are optionally substituted.
  • alcohol refers to a compound having one or more hydroxyl groups.
  • a alkyl alcohol is a substituted with one or more hydroxyl groups.
  • a fatty alcohol as used herein refers to a linear aliphatic primary alcohol.
  • the present invention provides novel filaments suitable to be used in a 3D printing device such as a fused deposition modelling device. It was unexpectedly found that the filaments exhibit an ideal combination of viscosity and hardness properties as well as sufficient adhesion when printed.
  • the invention provides a filament suitable to be used in a 3D printing device, wherein the filament comprises or consists of
  • thermoplastic binder comprising a thermoplastic polymer and at least one plasticizer
  • the components present in the filament add up to 100% by weight, i.e. the sum of all components of the filament is 100% by weight.
  • the metallic powder is preferably sinterable. This means that the metallic powder comprised in the printed shape will form a coherent mass upon heating without undergoing melting.
  • the metallic powder is selected from the group consisting of Ti, Ag, Au, Cu, Mo, Fe, W, Co, Ni, alloys thereof, preferably stainless steel or carbonyl iron, and carbides thereof, preferably tungsten carbide.
  • the alloy comprises or consists of two or more metals selected from the group consisting of Ti, Ag, Au, Cu, Mo, Fe, W, Co and Ni
  • the metal carbide comprises or consists of one or more metals selected from the group consisting of Ti, Ag, An, Cu, Mo, Fe, W, Co and Ni.
  • at least 90% of the particles of the metallic powder have a diameter of 25 mm or less, preferably 20 pm or less, preferablylO pm or less (measured by laser diffraction).
  • the metallic powder is present in the filament in an amount of 40 to 90 % by volume, preferably 50 to 80 % by volume (based on the total volume of the filament). In a preferred embodiment the metallic powder is present in the filament in an amount of 75 to 95 % by weight, preferably 90 to 95 % by weight, preferably 92 to 95 % by weight (based on the total weight of the filament).
  • thermoplastic binder is present in the filament in an amount of 60 to 20 % by volume, preferably 60 to 30 % by volume (based on the total volume of the filament).
  • thermoplastic binder is present in the filament in an amount of 1 to 25 % by weight, preferably 2 to 15 % by weight, preferably 3 to 10 % by weight (based on the total weight of the filament).
  • thermoplastic binder comprises 60 to 85 % by weight, preferably 65 to 80 % by weight of the at least one plasticizer (based on the total weight of the thermoplastic binder).
  • the at least one thermoplastic polymer is selected from the group consisting of a polyurethane, a polyamide, a polyvinylpyrrolidone, a polyethylene glycol, polyvinyl butyral, a polystyrene, a polyacrylate, a polymethacrylate, a polyolefin and a mixture thereof.
  • the polyamide is selected from the group consisting of a copolyamide, polyamide 11, polyamide 12, polyamide 6,6, polyamide 6,12, a polyether block amide and a mixture thereof.
  • said thermoplastic polymer is a polyamide selected from the group consisting of a copolyamide, Polyamide 11, Polyamide 12, polyamide 6,6, polyamide 6,12, a polyether-blockamide and mixtures thereof.
  • the copolyamide which can in one embodiment be soluble in alcohol is preferably produced from a C4-C8 lactam and from a C 10-08 lactam. Most preferably said copolyamide is produced from caprolactam and laurinlactam.
  • the at least one thermoplastic polymer is present in the filament in an amount of 1 to 15 % by weight, preferably 1 to 10 % by weight, preferably 1 to 5 % by weight, preferably 1 to 3 % by weight (based on the total weight of the filament).
  • the at least one plasticizer is present in the filament in an amount of 1 to 15 % by weight, preferably 2 to 10 % by weight or 3 to 6 % by weight (based on the total weight of the filament).
  • the at least one plasticizer is a substituted or non-substituted aromatic or heteroaromatic carboxylic acid ester or a mixture thereof.
  • the at least one plasticizer must be compatible with the thermoplastic polymer.
  • the plasticizer must be preferably well tolerated in the polymer.
  • the plasticizer should be (readily) soluble and the polymer poorly soluble or insoluble in the extraction solvent.
  • said at least one plasticizer is a hydroxybenzoic acid ester or a mixture of hydroxybenzoic acid esters, especially if a polyamide is used as thermoplastic polymer.
  • the hydroxybenzoic acid esters are esters of hydroxybenzoic acid and a branched or linear alcohol, wherein the alcohol is selected from the group consisting of a branched or linear C8-C22 alcohol and mixtures thereof and preferably selected from 2-propyl heptyl alcohol, isodecyl alcohol, 1-docosanol, 1-octadecanol, 1- dodecanol, 2-ethylhexyl alcohol, fatty alcohol, and a mixture thereof.
  • the fatty alcohol is an isostearyl, stearyl and/or behenyl alcohol.
  • the hydroxybenzoic acid ester is a p-hydroxybenzoic acid ester.
  • said at least one plasticizer is an ester mixture produced from p-hydroxybenzoic acid and a mixture of alcohols, wherein the alcohol mixture preferably comprises 2-propyl heptyl alcohol, isodecyl alcohol, 1-docosanol, 1- octadecanol, 1-dodecanol, isostearyl alcohol and/or 2-ethylhexyl alcohol.
  • said at least one plasticizer is an ester which is solid at 20°C and/or an ester that is liquid at 20°C or comprises only esters that are solid at 20°C. It was unexpectedly found that including such a mixture in the plasticizer allowed the filament of the invention in particular for filaments based on metallic powders to stay elastic for a longer time, while at the same time providing sufficient bonding capability upon printing.
  • the at least one plasticizer is a mixture of esters comprising (a) a first ester which is solid at 20°C and (b) a second ester which is liquid at 20°C, wherein they are present in a ratio of 50:1 to 1:5 ((a) : (b)).
  • the ratio is 40: 1 to 1:3, preferably 40: 1 to 1:1 ((a) : (b)).
  • the first ester is docosanyl-4-hydroxybenzoeic acid and the second ester is 2-ethylhexyl-4-hydroxybenzoeic acid.
  • the filament of the invention comprises at most 8, 6, 4 or at most 2 wt% of processing additives, based on the total weight of the filament.
  • the at least one processing additive is selected from the group consisting of montan waxes, amide waxes, paraffin waxes, fatty acids, esters of fatty acids and any mixture thereof.
  • the at least one processing additive is a release agent.
  • no additive is necessary. This will maximize the amount of metal and/or metallic powder to be included in the filament which is desirable because it will reduce the volume change of the printed prototype upon sintering.
  • the filament may nevertheless comprise impurities which are typically found in metal or metallic powders or in the thermoplastic binder of the invention. It is most preferred that the amount of such impurities does not exceed 0.8 wt% of the total mass of the filament of the invention. It is preferred that a filament of the invention does not comprise any anti-adhesion additives.
  • the filament of the invention comprises, preferably consists of 75 to 95% by weight, preferably 80 to 95% by weight, preferably 90 to 95% by weight metallic powder, 1 to 10% by weight, preferably 1 to 5 % by weight polyamide, 1 to 15% by weight, preferably 1 to 5 % by weight plasticizer and 0.1 to 2% by weight, preferably 0.1 to 1 % by weight release agent.
  • the filament has a diameter of 1 mm to 5 mm, preferably 1.1 to 3 mm, preferably 1.75 or 2.85 mm.
  • the filament is elastic, has a diameter of between 1 mm and 5 mm preferably 1.1 to 3 mm, preferably 1.75 or 2.85 mm and a length of at least 10 cm.
  • a process for producing a shaped body comprises the following steps: (i) printing a shaped green body using the filament according to the present invention or according to a preferred embodiment according to present invention and a 3D-printing device;
  • step (iii) sintering the shaped green body obtained from step (ii) to obtain said shaped body.
  • thermoplastic filaments even allows the use of conventional 3D printers, since it is possible to work in a low temperature range of 60-250° C, in particular 90-200°C.
  • the process is also suitable for the production of metallic moulded parts using thermoplastic filaments.
  • the sinterable material is embedded in a thermoplastic binder, which can then be processed thermoplastically in the specified temperature range. It also allows particularly thin-walled and filigree structures to be produced.
  • the formulation contains a thermoplastic and a suitable plasticizer. Additional processing aids such as release agents, lubricants and surfactants may also be included.
  • the filament is produced by mixing the components to be present, preferably at a temperature of 20 to 60°C. Subsequently, the mixture is plasticized in a kneader or extruder, preferably at a temperature of 100 to 200°C to form a mass. The mass is then preferably ground or granulated, especially if the mass is produced in the kneader. Subsequently, the (ground or granulated) mass is preferably extruded in a single-screw extruder to form the filament, preferably at a temperature of 100 to 160°C.
  • step (i) the filament is extruded through a nozzle having a temperature of 120°C to 180°C, preferably 150°C to 170°C.
  • step (i) the filament is extruded through a nozzle having a diameter of 0.3 mm to 1.0 mm, preferably 0.4 mm to 0.6 mm.
  • the filament is extruded into a container or a box, wherein the atmosphere has a temperature of 30°C to 70°C, preferably 55°C to 65°C.
  • the filament is extruded onto a printing bed having a temperature of 30°C to 70°C, preferably 55°C to 65°C.
  • the filament is extruded into a container or a box having an atmosphere temperature of 30°C to 70°C, preferably 55°C to 65 °C and onto a printing bed having a temperature of 30°C to 70°C, preferably 55°C to 65°C.
  • the filament is extruded with a printing velocity of 500 to 4,000 mm/min, preferably 700 to 1,500 mro/min.
  • the shaped green body is printed in layers, wherein the thickness of the layers is from 0.10 to 1 mm, preferably 0.10 to 0.50 mm, preferably 0.10 to 0.20 mm.
  • the at least one plasticizer is at least partially removed by at least one extraction step, wherein the at least one plasticizer is soluble in the organic solvent(s) used in the at least one extraction step.
  • the at least one plasticizer is at least partially removed, preferably at least partially extracted, by contacting the green body with at least one organic solvent, preferably at a temperature of 20°C or higher.
  • the solvent is acetone, ethylacetate, hydrocarbons, and/or methylethylketone.
  • the step (ii) is carried out two or more times, preferably by using different solvents.
  • a solvent is used, wherein the at least one plasticizer is (readily) soluble and the thermoplastic polymer is poorly soluble or insoluble.
  • the shaped green body is thermally debound at a temperature of 200°C to 500°C, preferably 300°C to 450°C.
  • step (ii) the at least one plasticizer is partially removed by contacting the green body with an organic solvent, preferably at a temperature of 20°C or higher, preferably of 20°C to 50°C, and then the shaped green body is thermally debound at a temperature of 200°C to 500°C, preferably 300°C to 450°C.
  • the shaped green body is sintered at a temperature of 900°C to 2000°C, preferably 1000°C to 1700°C, preferably 1100°C to 1700°C, preferably 1400°C to 1700°C.
  • a filament according to the present invention or according to a preferred embodiment is used in a 3D printing device.
  • the process for producing a shaped body comprises the following steps:
  • the shaped green body is printed in layers, wherein the thickness of the layers is from 0.10 to 1 mm, preferably 0.10 to 0.50 mm, preferably 0.10 to 0.20 mm;
  • step (iii) sintering the shaped green body obtained from step (ii) at a temperature of 900°C to 2000°C, preferably 1000°C to 1700°C, preferably 1100°C to 1700°C to obtain said shaped body.
  • the present invention also relates to a green body producible by mixing a metallic powder according to the present invention or according to a preferred embodiment of the present invention and a thermoplastic binder according to the present invention or according to a preferred embodiment of the present invention.
  • the present invention also relates to a binder according to the present invention or according to a preferred embodiment of the present invention which is used for the production of a filament for 3D printing devices.
  • Example 1 Filament with tungsten carbide
  • Example 2 Filament with stainless steel
  • Example 2 The individual components as listed below were extruded as described in Example 1 at 120°C to a filament with a diameter of 1.75 mm (suitable for conventional 3D printers) and can then be used in the 3D printing process.
  • Example 3 Printing the metal containing green bodies
  • the filaments of examples 1 and 2 were processed on a 3D printer of the company FELIX (model FELIX pro 2, filament diameter 1.75 mm ). A gear wheel with a diameter of 38 mm was printed as a structural element.
  • the green bodies obtained had the following properties:
  • the specimen 1 was placed for 20 h at 36°C in 150 ml acetone and then dried for 24 h at room temperature.
  • the surface of the moulded bodies was then slightly mechanically reworked.
  • the weight was 22.2 g and the diameter 35 mm.
  • the specimen 2 was placed for 24 h at 36°C in 120 ml acetone and then dried for 24 h at room temperature. Specimen 2 (brownling)
  • the surface of the moulded bodies was then mechanically reworked.
  • the weight was 11.34 g and the diameter 38 mm.
  • Example 5 Sintering of the test specimen
  • the specimen 1 (tungsten carbide/cobalt) was then slowly sintered in a furnace up to 1360°C under hydrogen atmosphere.
  • Test specimen 1 (sintered):
  • the specimen 2 (stainless steel) was then slowly sintered in a furnace up to 1320°C under hydrogen atmosphere.
  • Test specimen 2 (sintered)

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
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Abstract

La présente invention concerne un filament approprié pour être utilisé dans un dispositif d'impression 3D, le filament comprenant une poudre métallique, un liant thermoplastique et un ou plusieurs additifs de traitement. L'invention concerne également un procédé de fabrication d'un corps moulé comprenant l'étape d'impression d'une ébauche crue façonnée à l'aide du filament selon l'invention. L'invention concerne également l'utilisation d'un filament selon l'invention dans un dispositif d'impression 3D. L'invention concerne également l'utilisation d'un liant selon l'invention pour la production d'un filament destiné à des dispositifs d'impression 3D.
PCT/EP2019/058265 2019-04-02 2019-04-02 Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d WO2020200426A1 (fr)

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PCT/EP2019/058265 WO2020200426A1 (fr) 2019-04-02 2019-04-02 Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d

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PCT/EP2019/058265 WO2020200426A1 (fr) 2019-04-02 2019-04-02 Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023021193A1 (fr) * 2021-08-19 2023-02-23 Headmade Materials Gmbh Composant de liant pour un composé de charge destiné à être utilisé dans un processus de mise en forme et de frittage, composé de charge particulaire, et processus de mise en forme et de frittage
WO2023021196A1 (fr) * 2021-08-19 2023-02-23 Headmade Materials Gmbh Composant liant pour un composé de charge particulaire destiné à être utilisé dans un procédé de façonnage et de frittage, composé de charge particulaire, et procédé de façonnage et de frittage
WO2023021198A1 (fr) * 2021-08-19 2023-02-23 Headmade Materials Gmbh Composant de liant pour un composé de charge d'alimentation destiné à être utilisé dans un procédé de mise en forme et de frittage, composé de charge particulaire, et procédé de mise en forme et de frittage
NL2033613B1 (en) * 2022-07-13 2024-01-25 Univ Kunming Science & Technology Preparation method of filament for additive manufacturing

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WO2016004985A1 (fr) 2014-07-08 2016-01-14 Amril Ag Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d
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WO2016004985A1 (fr) 2014-07-08 2016-01-14 Amril Ag Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d
WO2018059473A1 (fr) * 2016-09-30 2018-04-05 珠海天威飞马打印耗材有限公司 Filament de formation tridimensionnel, procédé de fabrication et procédé de formation

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JOAMIN GONZALEZ-GUTIERREZ ET AL: "Additive Manufacturing of Metallic and Ceramic Components by the Material Extrusion of Highly-Filled Polymers: A Review and Future Perspectives", MATERIALS, vol. 11, no. 5, 18 May 2018 (2018-05-18), pages 840, XP055629611, DOI: 10.3390/ma11050840 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023021193A1 (fr) * 2021-08-19 2023-02-23 Headmade Materials Gmbh Composant de liant pour un composé de charge destiné à être utilisé dans un processus de mise en forme et de frittage, composé de charge particulaire, et processus de mise en forme et de frittage
WO2023021196A1 (fr) * 2021-08-19 2023-02-23 Headmade Materials Gmbh Composant liant pour un composé de charge particulaire destiné à être utilisé dans un procédé de façonnage et de frittage, composé de charge particulaire, et procédé de façonnage et de frittage
WO2023021198A1 (fr) * 2021-08-19 2023-02-23 Headmade Materials Gmbh Composant de liant pour un composé de charge d'alimentation destiné à être utilisé dans un procédé de mise en forme et de frittage, composé de charge particulaire, et procédé de mise en forme et de frittage
NL2033613B1 (en) * 2022-07-13 2024-01-25 Univ Kunming Science & Technology Preparation method of filament for additive manufacturing

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