A 3D printing wire, a method for preparing the 3D printing wire, a 3D printing method, and a 3D printing apparatus are provided. The method for preparing the 3D printing wire includes: co-extruding a first polymer matrix composite and a second polymer matrix composite to produce a 3D printing wire with a core-shell structure. In the 3D printing wire with the core-shell structure, a shell structure formed by the second polymer matrix composite is wrapped around a core structure formed by the first polymer matrix composite. A filler material volume fraction of the first polymer matrix composite is larger than a filler material volume fraction of the second polymer matrix composite. The material for the shell structure includes an unfilled polymer material with a composite filling content of zero.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
A wire material automated end-of-line device, which comprises: a device bottom plate (1), the device bottom plate (1) having disposed thereon a plurality of composite moving module support columns (2), the top of the composite moving module support columns (2) being provided with a mounting top plate (3), the mounting top plate (3) having disposed below same a Y-axis linear motion module (4), the Y-axis linear motion module (4) having a module mounting plate (5) movably connected below same, and the module mounting plate (5) having an X-axis linear motion module (6) arranged thereon; the device bottom plate (1) has disposed thereon a winding module (9), the X-axis linear motion module (6) has disposed thereon a threading module (10), the threading module (10) comprises a hollow rotating platform (25), the hollow rotating platform (25) has connected thereon a platform mounting plate (26), the platform mounting plate (26) has disposed below same a primary mounting plate (27), and the lower side of the primary mounting plate (27) is provided with a wire cutting module (28), a wire feeding module (29), and a wire tensioning module (30). In this way, unmanned wire winding and automatic wire ending can be achieved, thereby greatly increasing efficiency, reducing labor, and avoiding the risk of quality being affected by worker error.
A 3D printing nozzle, a 3D printer and a printing method are provided. The 3D printing nozzle includes a nozzle body to convey and extrude a printing material along a target direction, and sequentially includes at least a preheating section, a first heat resistance section, and a melting section along the target direction; and a heating device connected to the nozzle body. During operation, the heating device heats the preheating section to a temperature T1, and the melting section to a temperature T2. The printing material remains solid when passing through the preheating section at the temperature of T1; the printing material turns into a fluid state when passing through the melting section at the temperature T2, The first heat resistance section restricts the heat conduction between the preheating section and the melting section, so that the printing material in the preheating section remains in the solid state.
A crystallization control apparatus and method for producing 3D printing filament, 3D printing filament, and a spool. The crystallization control apparatus makes it so that during production, when 3D printing filament is wound back and forth within filament grooves of two spools, the speed of the filament increases each time the filament encounters a groove, ensuring that each section of the 3D printing filament is stretched and thus maintains tension. Mainly, controlling the groove depth of each filament groove of the two spools makes it so that filament located in the middle of two adjacent positions of the two spools only has slight stretching tension, thereby ensuring the tension of the 3D printing filament between a first spool (121) and a second spool (122), and avoiding to the greatest extent possible the stretching of the filament, thereby ensuring dimensional uniformity in the diameter of the filament.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 48/05 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée filamentaire, p. ex. fils
The present application relates to the technical field of 3D printing. Provided are a 3D printer nozzle, a 3D printer and a printing method. The 3D printer nozzle comprises a nozzle body, which, during operation, conveys a printing material in a target direction and extrudes same, the nozzle body sequentially at least comprising in the target direction a preheating section, a first heat blocking section and a fusing section; and a heating apparatus, which is connected to the nozzle body and, during operation, heats the preheating section to temperature T1 and heats the fusing section to temperature T2, such that the printing material is kept in a solid state when passing through the preheating section having temperature T1, and the printing material is transited into a fluid state when passing through the fusing section having temperature T2. The first heat blocking section limits thermal conduction between the preheating section and the fusing section, such that the printing material in the preheating section is kept in a solid state all the time. The 3D printer nozzle can improve the capability of the printer nozzle fusing plasticized materials while preventing itself from being clogged.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
The polymeric composition of this invention can be used as a temporary support material in the additive manufacturing of three dimensional articles without compromising ultimate product quality, reducing printing speed, requiring printers of increased complexity, or increasing cost or the incidence of printer jamming. This invention more specifically discloses a polymeric composition which is useful as a temporary support material for utilization in three-dimensional printing, this polymeric composition comprising of a first polymeric component which is suitable for use as a modeling material and a second polymeric component which is immiscible with the first polymeric component, wherein the polymeric composition has a continuous phase which is comprised of the second polymeric component, and wherein the polymeric composition has a Shore A hardness of at least 80.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
A method for generating 3D printing data, a method for planning a path, a system and a storage medium are provided; the method for generating 3D printing data comprises: generating at least one slice pattern based on a projected contour of a model of a to-be-printed object, wherein each slice pattern comprises one or more texture lines, and the one or more texture lines comprise non-closed texture lines whose endpoints are located on the projected contour; and generating 3D printing data based on spatial positions of printing lines of cross-sectional patterns, with the cross-sectional patterns determined based on the at least one slice pattern. wherein the printing lines comprise texture lines. The present disclosure adopts 3D printing to realize structural designs that cannot be achieved using conventional fabrics, thereby increasing design freedom of fabrics in terms of both appearance and functionality.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
An automatic filament ending device is provided, which includes a device base plate, a plurality of composite motion module pillars are provided on the device base plate. The top of the composite motion module pillars is provided with a mounting top plate. A Y-axis linear motion module is provided the mounting top plate and is movably connected with a module mounting plate. The module mounting plate is provided with an X-axis linear motion module. A filament winding module is provided on a bottom plate. A filament threading module is provided on the X-axis linear motion module. The filament threading module includes a rotation platform connected to a platform mounting plate. A lower side of a main mounting plate is provided with a filament cutting module, a filament feeding module and a filament tensioning module.
A 3D printing wire, a method for preparing a 3D printing wire, a 3D printing method, and a 3D printing apparatus. A core-shell structured 3D printing wire 10 is formed by co-extruding a first-polymer-based composite material 100,and a second-polymer-based composite material 111,. In the core-shell structured 3D printing wire 10, a shell structure formed by the second-polymer-based composite material 111,wraps a core structure formed by the first-polymer-based composite material 100,, wherein the volume fraction of a filling material in the first-polymer-based composite material 100,is greater than the volume fraction of a filling material in the second-polymer-based composite material 111,; moreover, the material of the shell structure contains a non-filled polymer material with a composite filling amount of zero.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
The present application discloses a foaming wire, a preparation method, an FDM printing method, a printing device and a storage medium. The foaming wire comprises a polymer elastomer resin and a foaming agent, the mass percentage of the polymer elastomer resin is 70%-99.5%, and the mass percentage of the foaming agent is 0.5%-30%. The foaming wire has good foaming performance. A printing component formed by printing by using the foaming material can have advantages such as having a frosted surface, being light-weight and being soft as a whole.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 44/20 - Moulage par pression interne engendrée dans la matière, p. ex. par gonflage ou par moussage pour la fabrication d'objets de longueur indéfinie
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B33Y 80/00 - Produits obtenus par fabrication additive
11.
Poylmeric composition for use as a temporary support material in extrusion based additive manufacturing
The polymeric composition of this invention can be used as a temporary support material in the additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, increasing the incidence of printer jamming, or requiring printers of increased complexity. This invention more specifically discloses a polymeric composition which is particularly useful as a temporary support material for utilization in three-dimensional printing, said polymeric composition being comprised of a first polymeric component which is suitable for use as a modeling material and a second polymeric component which is immiscible with the first polymeric component, wherein the polymeric composition has a continuous phase, wherein the continuous phase is comprised of the second polymeric component, and wherein the polymeric composition has a Shore A hardness of at least 80.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
B29K 67/00 - Utilisation de polyesters comme matière de moulage
B29K 75/00 - Utilisation de polyurées ou de polyuréthanes comme matière de moulage
D01F 6/94 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de mélanges de produits de polycondensation comme constituant majeur avec d'autres polymères ou des composés de bas poids moléculaire d'autres produits de polycondensation
D01F 6/92 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de mélanges de produits de polycondensation comme constituant majeur avec d'autres polymères ou des composés de bas poids moléculaire de polyesters
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
12.
3D PRINTING DATA GENERATION METHOD, PATH PLANNING METHOD, SYSTEM AND STORAGE MEDIUM
A 3D printing data generation method, a path planning method, a system and a storage medium. The 3D printing data generation method comprises: generating at least one sliced pattern according to a projection contour of a model of an object to be printed, wherein each sliced pattern comprises at least one texture line, and the end point of each texture line in each sliced pattern is positioned on the projection contour; and generating 3D printing data according to the spatial position of each printed line in a cross-sectional layer determined based on each sliced pattern, wherein the printed line comprises the texture line. The 3D printing method realizes structural designs unachievable in traditional fabric, thereby enhancing freedom of fabric design in terms of appearance and function. Moreover, proper planning of the printing path during a printing process improves printing efficiency and printing quality. A product printed using the methods enables density changes in each part of the fabric structure and satisfies various personalized needs.
A composition for 3D printing. The composition comprises a high molecular polymer having an amide group and a compound of metal elements in the second, third, and fourth periods of the periodic table, the polymer and the compound being blended together. Further provided is an application of the composition in preventing or reducing warping and/or oozing during 3D printing. The product can be effectively applied to 3D printing, especially to material extrusion 3D printing.
B29C 64/00 - Fabrication additive, c.-à-d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p. ex. par impression en 3D, stéréolithographie ou frittage laser sélectif
B33Y 70/10 - Composites de différents types de matériaux, p. ex. mélanges de céramiques et de polymères ou mélanges de métaux et de biomatériaux
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
14.
HIGHLY CRYSTALLINE POLY(LACTIC ACID) FILAMENTS FOR MATERIAL-EXTRUSION BASED ADDITIVE MANUFACTURING
This invention involves a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon the finding that poly(lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly(lactic acid) filament of this invention can accordingly be used in the additive manufacturing of three dimensional articles without encountering the problems associated with premature softening, such as poor quality and printer jamming The crystalline poly(lactic acid) filaments of this invention can also be used in additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, or leading to increased printer complexity. This invention more specifically discloses a filament for use in three-dimensional printing which is comprised of crystalized poly(lactic acid), wherein said filament has a diameter which is within the range of 1.65 mm to 1.85 mm
B29C 48/05 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée filamentaire, p. ex. fils
B29C 48/00 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet
D01F 6/62 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyesters
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
D02J 13/00 - Chauffage ou refroidissement de filaments, filés, fils câblés, cordes ou similaires ne correspondant spécifiquement à aucun des procédés prévus dans la présente sous-classe
D01D 10/04 - Support des filaments ou similaires pendant leur traitement
B29C 48/06 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée en forme de tige
The polymeric composition of this invention can be used as a temporary support material in the additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, increasing the incidence of printer jamming, or requiring printers of increased complexity. This invention more specifically discloses a polymeric composition which is particularly useful as a temporary support material for utilization in three-dimensional printing, said polymeric composition being comprised of a first polymeric component which is suitable for use as a modeling material and a second polymeric component which is immiscible with the first polymeric component, wherein the polymeric composition has a continuous phase, wherein the continuous phase is comprised of the second polymeric component, and wherein the polymeric composition has a Shore A hardness of at least 80.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
B29K 67/00 - Utilisation de polyesters comme matière de moulage
B29K 75/00 - Utilisation de polyurées ou de polyuréthanes comme matière de moulage
D01F 6/94 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de mélanges de produits de polycondensation comme constituant majeur avec d'autres polymères ou des composés de bas poids moléculaire d'autres produits de polycondensation
D01F 6/92 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de mélanges de produits de polycondensation comme constituant majeur avec d'autres polymères ou des composés de bas poids moléculaire de polyesters
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
The present application relates to a composition, which comprises: (a) a photopolymerizable substance; (b) a thiol; (c) a photoinitiator; (d) a thermosensitive polymer; and (e) water, and can be used as a bio-ink for preparing a bio-hydrogel for direct-writing 3D printing. The present invention further relates to a method for preparing the composition, and a direct-writing 3D printing method using the composition.
C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
C08F 2/46 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire
C08F 2/50 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible avec des agents sensibilisants
C08G 61/04 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aliphatiques
C08G 81/02 - Composés macromoléculaires obtenus par l'interréaction de polymères en l'absence de monomères, p. ex. polymères séquencés au moins un des polymères étant obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carbone
C12N 5/00 - Cellules non différenciées humaines, animales ou végétales, p. ex. lignées cellulairesTissusLeur culture ou conservationMilieux de culture à cet effet
B29C 64/106 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux
B29K 23/00 - Utilisation de polyalcènes comme matière de moulage
B29K 71/00 - Utilisation de polyéthers comme matière de moulage
Provided is a photocurable composition, comprising a photosensitive resin, a ceramic particle, a dispersant, and a plasticizer and/or a solvent. The composition can be used in a stereo photocuring forming method or digital light processing forming method for 3D printing. The printing combines the corresponding ceramic degreasing and sintering process. The sintered ceramic component has an excellent three-point bending strength and can be used in many applications, such as dentures, high temperature resistant nozzles, corrosion resistant filters, chemical reaction catalyst carriers, etc.
This invention involves a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon the finding that poly(lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly(lactic acid) filament of this invention can accordingly be used in the additive manufacturing of three dimensional articles without encountering the problems associated with premature softening, such as poor quality and printer jamming. The crystalline poly(lactic acid) filaments of this invention can also be used in additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, or leading to increased printer complexity. This invention more specifically discloses a filament for use in three-dimensional printing which is comprised of crystallized poly(lactic acid), wherein said filament has a diameter which is within the range of 1.65 mm to 1.85 mm.
D01D 10/04 - Support des filaments ou similaires pendant leur traitement
D02J 13/00 - Chauffage ou refroidissement de filaments, filés, fils câblés, cordes ou similaires ne correspondant spécifiquement à aucun des procédés prévus dans la présente sous-classe
B29C 48/05 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée filamentaire, p. ex. fils
B29C 48/00 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet
D01F 6/62 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de produits d'homopolycondensation à partir de polyesters
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
A photocurable composition, comprising a photosensitive resin, a laser direct structuring additive, and a dispersing agent. The composition may be used in stereolithography (SLA) or in digital light processing (DLP) 3D printing and laser direct structuring methods to fabricate molded interconnecting devices that are used in a variety of applications, such as personal computers, laptops and portable computers, cell phone antennas and other communications devices of such type, medical applications, radio-frequency identification (RFID) applications, and automotive applications.
C08F 283/10 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polymères contenant plus d'un radical époxyde par molécule
C08F 283/00 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe
H05K 3/20 - Appareils ou procédés pour la fabrication de circuits imprimés dans lesquels le matériau conducteur est appliqué au support isolant de manière à former le parcours conducteur recherché par apposition d'un parcours conducteur préfabriqué
21.
Apparatuses for processing additive manufactured objects and methods of use
An apparatus (200) for smoothing a surface of an object (100). The apparatus includes a chamber (210), a reservoir (324) configured to hold a liquid (322), and a nebulizer assembly (212) configured to generate a mist (104) from the liquid into the chamber. The nebulizer assembly includes a mesh (732), a vibrating element (731), and a wick (736). The object is received in the chamber and the mist is configured to surround the object.
B29C 64/188 - Procédés de fabrication additive impliquant des opérations supplémentaires effectuées sur les couches ajoutées, p. ex. lissage, meulage ou contrôle d’épaisseur
B29C 71/00 - Post-traitement d'objets sans modification de leur formeAppareils à cet effet
B05B 13/02 - Moyens pour supporter l'ouvrageDisposition ou assemblage des têtes de pulvérisationAdaptation ou disposition des moyens pour entraîner des pièces
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
B29C 64/30 - Opérations ou équipements auxiliaires
B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
B05C 3/109 - Appareillages dans lesquels un ouvrage est mis en contact avec une grande quantité de liquide ou autre matériau fluide l'ouvrage étant immergé dans le liquide ou autre matériau fluide pour traiter des objets individuels en faisant passer des liquides ou d'autres matériaux fluides dans, ou au travers, de chambres contenant des objets immobiles
B05C 11/10 - Stockage, débit ou réglage du liquide ou d'un autre matériau fluideRécupération de l'excès de liquide ou d'un autre matériau fluide
B05C 3/00 - Appareillages dans lesquels un ouvrage est mis en contact avec une grande quantité de liquide ou autre matériau fluide
B05B 7/16 - Appareillages de pulvérisation pour débiter des liquides ou d'autres matériaux fluides provenant de plusieurs sources, p. ex. un liquide et de l'air, une poudre et un gaz comportant des moyens pour chauffer la matière à projeter
B05B 7/24 - Appareillages de pulvérisation pour débiter des liquides ou d'autres matériaux fluides provenant de plusieurs sources, p. ex. un liquide et de l'air, une poudre et un gaz avec des moyens, p. ex. un récipient, pour alimenter en liquide ou autre matériau fluide un dispositif de décharge
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
Provided is a composition. The composition comprises: (a) photopolymerizable substances, (b) mercaptan, (c) a photoinitiator, (d) thermosensitive polymer, and (e) water. The composition can be used as biological ink for preparing biological hydrogel for direct-writing 3D printing. A method for preparing the composition and a direct-writing 3D printing method using the composition. The ink has excellent 3D printing performance and good biocompatibility of cells.
An apparatus (200) for smoothing a surface of an object (100). The apparatus includes a chamber (210), a reservoir (324) configured to hold a liquid (322), and a nebulizer assembly (212) configured to generate a mist (104) from the liquid into the chamber. The nebulizer assembly includes a mesh (732), a vibrating element (731), and a wick (736). The object is received in the chamber and the mist is configured to surround the object.
B05B 17/06 - Appareils de pulvérisation ou d'atomisation de liquides ou d'autres matériaux fluides, non couverts par les autres groupes de la présente sous-classe opérant suivant des procédés particuliers utilisant des vibrations ultrasonores
B29C 71/00 - Post-traitement d'objets sans modification de leur formeAppareils à cet effet
B05C 3/109 - Appareillages dans lesquels un ouvrage est mis en contact avec une grande quantité de liquide ou autre matériau fluide l'ouvrage étant immergé dans le liquide ou autre matériau fluide pour traiter des objets individuels en faisant passer des liquides ou d'autres matériaux fluides dans, ou au travers, de chambres contenant des objets immobiles
B05C 11/10 - Stockage, débit ou réglage du liquide ou d'un autre matériau fluideRécupération de l'excès de liquide ou d'un autre matériau fluide
B05B 7/16 - Appareillages de pulvérisation pour débiter des liquides ou d'autres matériaux fluides provenant de plusieurs sources, p. ex. un liquide et de l'air, une poudre et un gaz comportant des moyens pour chauffer la matière à projeter
B05B 7/24 - Appareillages de pulvérisation pour débiter des liquides ou d'autres matériaux fluides provenant de plusieurs sources, p. ex. un liquide et de l'air, une poudre et un gaz avec des moyens, p. ex. un récipient, pour alimenter en liquide ou autre matériau fluide un dispositif de décharge
B05B 13/02 - Moyens pour supporter l'ouvrageDisposition ou assemblage des têtes de pulvérisationAdaptation ou disposition des moyens pour entraîner des pièces
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
24.
3D PRINTING TECHNOLOGY-BASED METAL CASTING MANUFACTURING METHOD
A 3D printing technology-based metal casting manufacturing method, comprising but not limited to the following steps: (1) employing a 3D printing technology to produce a 3D printed model for a target metal casting; (2) post-polishing processing the 3D printed model; (3) employing a casting process on the processed 3D printed model to produce a shell; and (4) roasting the shell so that the 3D printed model is completely combusted, vaporized, and disappeared, and then casting a molten metal liquid into the shell to produce a metal casting. The method allows convenient implementation of the casting of complex castings, the castings produced has increased dimensional precision, surface smoothness, and casting consistency.
Disclosed herein are methods and systems for making an object using additive manufacturing, including processing the object to improve its heat resistance, such as processing the object to allow the material of the object to crystalize in a reversible gelation medium. The reversible gelation medium may serve as a temporary mold for the object to reduce, minimize, or eliminate deformation of the object during processing. Such processing of the object may increase the softening temperature of the material of the object, and thus may improve the heat resistance of the object comparing to that of the object prior to processing.
B33Y 40/00 - Opérations ou équipements auxiliaires, p. ex. pour la manipulation de matériau
C08J 5/00 - Fabrication d'objets ou de matériaux façonnés contenant des substances macromoléculaires
C08L 67/00 - Compositions contenant des polyesters obtenus par des réactions créant une liaison ester carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
D01D 5/084 - Chauffage des filaments, fils ou similaires, à la sortie des filières
26.
HIGH CRYSTALLINE POLY(LACTIC ACID) FILAMENTS FOR MATERIAL-EXTRUSION BASED ADDITIVE MANUFACTURING
Provided is a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon the finding that poly (lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly (lactic acid) filament can accordingly be used in the additive manufacturing of three dimensional articles without encountering the problems associated with premature softening, such as poor quality and printer jamming. The crystalline poly (lactic acid) filaments can also be used in additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, or leading to increased printer complexity. It more specifically discloses a filament for use in three-dimensional printing which is comprised of crystalized poly (lactic acid), wherein said filament has a diameter which is within the range of 1.65 mm to 1.85 mm.
B29C 47/00 - Moulage par extrusion, c. à d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désirée; Appareils à cet effet (moulage par extrusion-soufflage B29C 49/04)
B29C 71/00 - Post-traitement d'objets sans modification de leur formeAppareils à cet effet
27.
METHODS AND APPARATUSES FOR PROCESSING ADDITIVE MANUFACTURED OBJECTS
Disclosed herein are methods for processing objects made using additive manufacturing methods, comprising placing the object made by an additive manufacturing process using at least one thermoplastic polymer in an enclosed chamber, generating a mist of a liquid in the enclosed chamber, and exposing the object to the mist of the liquid for a predetermined period of time.
An apparatus (200) for smoothing a surface of an object (100). The apparatus includes a chamber (210), a reservoir (324) configured to hold a liquid (322), and a nebulizer assembly (212) configured to generate a mist (104) from the liquid into the chamber. The nebulizer assembly includes a mesh (732), a vibrating element (731), and a wick (736). The object is received in the chamber and the mist is configured to surround the object.
This invention more specifically discloses a polymeric composition which is particularly useful as a temporary support material for utilization in three-dimensional printing, said polymeric composition being comprised of a first polymeric component which is suitable for use as a modeling material and a second polymeric component which is immiscible with the first polymeric component, wherein the polymeric composition has a continuous phase, wherein the continuous phase is comprised of the second polymeric component, and wherein the polymeric composition has a Shore A hardness of at least 80.The polymeric composition offers an array of properties which make it highly desirable of use as a temporary support material in three-dimensional printing. The support material of this invention can be used to generate support structures that can be easily removed by simple mechanical means.
C08L 67/00 - Compositions contenant des polyesters obtenus par des réactions créant une liaison ester carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
C08L 75/00 - Compositions contenant des polyurées ou des polyuréthanesCompositions contenant des dérivés de tels polymères
31.
HIGHLY CRYSTALLINE POLY (LACTIC ACID) FILAMENTS FOR MATERIAL- EXTRUSION BASED ADDITIVE MANUFACTURING
This invention involves a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon the finding that poly(lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly(lactic acid) filament of this invention can accordingly be used in the additive manufacturing of three dimensional articles without encountering the problems associated with premature softening, such as poor quality and printer jamming. The crystalline poly(lactic acid) filaments of this invention can also be used in additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, or leading to increased printer complexity. This invention more specifically discloses a filament for use in three-dimensional printing which is comprised of crystalized poly(lactic acid), wherein said filament has a diameter which is within the range of 1.65 mm to 1.85 mm.
C08L 67/04 - Polyesters dérivés des acides hydroxycarboxyliques, p. ex. lactones
B29B 9/06 - Fabrication de granulés par division de matière préformée sous forme de filaments, p. ex. combinée avec l'extrusion
D01F 6/92 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de mélanges de produits de polycondensation comme constituant majeur avec d'autres polymères ou des composés de bas poids moléculaire de polyesters
D01D 5/08 - Méthodes de filage à partir de masses en fusion
D01D 5/084 - Chauffage des filaments, fils ou similaires, à la sortie des filières
32.
HIGHLY CRYSTALLINE POLY (LACTIC ACID) FILAMENTS FOR MATERIAL-EXTRUSION BASED ADDITIVE MANUFACTURING
Provided is a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon the finding that poly (lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly (lactic acid) filament can accordingly be used in the additive manufacturing of three dimensional articles without encountering the problems associated with premature softening, such as poor quality and printer jamming. The crystalline poly (lactic acid) filaments can also be used in additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, or leading to increased printer complexity. It more specifically discloses a filament for use in three-dimensional printing which is comprised of crystalized poly (lactic acid), wherein said filament has a diameter which is within the range of 1.65 mm to 1.85 mm.
C08L 67/04 - Polyesters dérivés des acides hydroxycarboxyliques, p. ex. lactones
B29B 9/06 - Fabrication de granulés par division de matière préformée sous forme de filaments, p. ex. combinée avec l'extrusion
D01F 6/92 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de mélanges de produits de polycondensation comme constituant majeur avec d'autres polymères ou des composés de bas poids moléculaire de polyesters
D01D 5/08 - Méthodes de filage à partir de masses en fusion
D01D 5/084 - Chauffage des filaments, fils ou similaires, à la sortie des filières
