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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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26-01-2012 дата публикации

Process for producing a 3-dimensional component by selective laser melting (slm)

Номер: US20120018115A1

Автор: Alexander Stankowski, Lukas Rickenbacher, Simone Hövel

Принадлежит: Individual

A process produces a 3-dimensional component ( 16 ) by selective laser melting (SLM), in which the component ( 16 ) is formed on a foundation with a surface, e.g., a platform ( 10 ) or a support, which in particular is a component of the same type which has already been produced previously, by successively melting layers of a first metal powder to form a sequence of stacked layers. The process is substantially simplified and made more flexible by virtue of the fact that the separation of the finished component ( 16 ) from the surface of the platform ( 10 ) or the support thereof is simplified by providing a separating layer ( 11 ) between the component ( 16 ) and the platform ( 10 ) or the support, this separating layer making it possible to separate the finished component ( 16 ) from the platform ( 10 ) or the support without damaging the finished component ( 16 ).

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Номер записи: 1

20-03-2014 дата публикации

Reduced build mass additive manufacturing chamber

Номер: US20140077422A1

Автор: Alan B. Minick

Принадлежит: Pratt and Whitney Rocketdyne Inc

A disclosed additive manufacturing machine includes a work surface for supporting fabrication of part and a housing defining a chamber over the work surface. A material applicator supported on the housing deposits material onto the work surface and a blocker plate disposed between the material applicator and the work surface for blocking a portion of material deposited by the material applicator. An energy directing device is supported on the housing and directing energy within the chamber to form the part.

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Номер записи: 2

07-01-2021 дата публикации

Powder recirculating additive manufacturing apparatus and method

Номер: US20210001556A1

Автор: Charles Michael Welsh, Christian Xavier Stevenson, Steven Hubert RENGERS

Принадлежит: General Electric Co

A method of making a part by an additive manufacturing process includes the steps of: (a) supporting a build platform on a support surface; (b) traversing a powder dispenser positioned above the support surface across the build platform, while dispensing powder from the powder dispenser, so as to deposit the powder over the build platform; (c) traversing the build platform with a scraper to scrape the deposited powder, so as to form a layer increment of powder; (d) using a directed energy source to fuse the layer increment of powder in a pattern corresponding to a cross-sectional layer of the part; and (e) repeating in a cycle steps (b) through (d) to build up the part in a layer-by-layer fashion.

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Номер записи: 3

04-01-2018 дата публикации

Three-dimensional printing and three-dimensional printers

Номер: US20180001556A1

Автор: Alan Rick Lappen, Benyamin Buller, Richard Joseph ROMANO, Thomas Blasius Brezoczky, Zachary Ryan Murphree

Принадлежит: Velo3D Inc

The present disclosure provides three-dimensional (3D) printing processes, apparatuses, software, and systems for the production of at least one desired 3D object. The 3D printer system (e.g., comprising a processing chamber, build module, or an unpacking station) described herein may retain a desired (e.g., inert) atmosphere around the material bed and/or 3D object at multiple 3D printing stages. The 3D printer described herein comprises one or more build modules that may have a controller separate from the controller of the processing chamber. The 3D printer described herein comprises a platform that may be automatically constructed. The invention(s) described herein may allow the 3D printing process to occur for a long time without operator intervention and/or down time.

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Номер записи: 4

03-01-2019 дата публикации

Forming device for producing moulded bodies by selectively hardening powder material

Номер: US20190001413A1

Автор: Daniel Golz, Matthias Fockele

Принадлежит: REALIZER GMBH

The invention relates to a forming device for producing moulded bodies by selectively hardening powder material to form connected regions, comprising a process chamber ( 28 ) having a powder inlet ( 32 ) for powder material to be processed, and a powder outlet ( 36 ) for excess powder material, a powder supply apparatus ( 80, 82 ) that is or can be connected to the powder inlet ( 32 ) and is intended for providing powder material in the process chamber ( 28 ), and a powder recovery apparatus ( 74 ) that is or can be connected to the powder outlet ( 36 ) and is intended for recycling powder material to be processed out of the excess powder material, wherein the powder supply apparatus ( 80, 82 ) and the powder recovery apparatus ( 74 ) are combined to form a subassembly that is designed as an interchangeable module ( 16 ) and comprises connection interfaces, specifically at least one input interface ( 46 ) an at least one output interface ( 48 ), that are connection-compatible with relevant connection interfaces ( 40, 44 ) of the powder inlet ( 32 ) and powder outlet ( 36 ) of the process chamber ( 28 ) such that excess powder can be fed out of the process chamber ( 28 ) through the powder outlet ( 36 ) thereof to the powder recovery apparatus ( 74 ) by means of the at least one input interface ( 46 ), and such that powder material prepared by the powder recovery apparatus ( 74 ) can be fed to the process chamber ( 28 ) through the powder inlet ( 32 ) thereof by means of the at least one output interface ( 48 ).

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Номер записи: 5

20-01-2022 дата публикации

Methods and apparatus for the manufacture of three-dimensional objects

Номер: US20220016832A1

Автор: Adam ELLIS, Anders Hartmann, Andrew Morse, Christopher Noble, Frederik Tjellesen, Michael CALEY, Torben LANGE

Принадлежит: Stratasys Powder Production Ltd

Apparatus (1) for manufacturing a three-dimensional object from a powder, the apparatus comprising: a work surface (170); a build bed (201) having a build area (190), the build area (190) being comprised within the work surface (170), wherein successive layers of said three-dimensional object are formed in the build bed (201); a first powder supply module (2) fixedly arranged on a first side of the work surface (170), outward from a first side of the build bed (201); a second powder supply module (3) fixedly arranged on a second side of the work surface (170), outward from a second side of the build bed (201); a first powder distribution sled (300) operable to distribute powder dosed to the work surface (170) from the first powder supply module (2) while moving in a first direction from the first side of the work surface (170) towards the second side of the work surface (170), and from the second powder supply module (3) while moving in a second direction from the second side of the work surface (170) towards the first side of the work surface (170), so as to form a layer of powder within the build area (190), the first powder distribution sled (300) being driveable along a first axis across the build area (190); and a print sled (350) operable to deposit a pattern of fluid onto the layer of powder within the build area (170) to define the cross section of said object in said layer, the print sled (350) being driveable along a second axis across the build area (170); wherein the first powder distribution sled (300) comprises a first powder distribution device (320) for distributing the powder; wherein the print sled (350) comprises one or more droplet deposition heads (370) for depositing the fluid, a first radiation source assembly located on one side of the one or more droplet deposition heads (370), and a second radiation source assembly located on the other side of the one or more droplet deposition heads (370); and wherein the first powder distribution sled ( ...

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Номер записи: 6

20-01-2022 дата публикации

Recoaters with gas flow management

Номер: US20220016836A1

Автор: David W. Morganson, Diana GIULIETTI

Принадлежит: Delavan Inc

An additive manufacturing device includes a recoater configured to push powder onto a build platform. The recoater defines an advancing direction for pushing powder. A first baffle is mounted to a first end of a leading edge of the recoater and a second baffle mounted to a second end of the leading edge of the recoater opposite the first end. Each of the first and second baffles includes a base mounted to the recoater, a first wall that extends obliquely ahead of and laterally outward from the base relative to the advancing direction, and a second wall opposite the first wall. The second wall extends obliquely ahead of and laterally inward from the base relative to the advancing direction. A volume is defined between the first and second wall with capacity to collect powder as the recoater advances.

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Номер записи: 7

12-01-2017 дата публикации

Powder Distribution for Laser Sintering Systems

Номер: US20170008234A1

Автор: David H. CULLEN, Rafael Enrique HIDALGO

Принадлежит: 3D Systems Inc

There is provided improved laser sintering systems that increase the powder density and reduce anomalies of the powder layers that are sintered, that measure the laser power within the build chamber for automatic calibration during a build process, that deposit powder into the build chamber through a chute to minimize dusting, and that scrubs the air and cools the radiant heaters with recirculated scrubbed air. The improvements enable the laser sintering systems to make parts that are of higher and more consistent quality, precision, and strength, while enabling the user of the laser sintering systems to reuse greater proportions of previously used but unsintered powder.

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Номер записи: 8

03-02-2022 дата публикации

SEAL ASSEMBLIES HAVING A SENSOR

Номер: US20220034403A1

Автор: FERNANDEZ SANJUAN Josep Maria, GARCIA GOMEZ Arturo, Prats Gonzalez Ruben

Принадлежит: Hewlett-Packard Development Company, L.P.

Examples relate to a seal assembly comprising a base unit comprising an opening and a sealing surface extending around the opening. The seal assembly further comprises a sensor to detect a distance between the sealing surface of the base unit and a sealing surface of a lid when a fastener is connecting the lid to the base unit. 1. A seal assembly comprising:a base unit comprising an opening and a sealing surface extending around the opening; anda sensor to detect a distance between the sealing surface of the base unit and a sealing surface of a lid when a fastener is connecting the lid to the base unit.2. The seal assembly according to claim 1 , wherein the sensor is attached to an outer surface of the base unit.3. The seal assembly according to claim 1 , wherein the seal assembly comprises:a fixed sensor bracket connected to the base unit; andan adjustable sensor bracket housing the sensor and being slidably connected to the fixed sensor to adjust the position of the sensor with respect the sealing surface of the base unit.4. The seal assembly according to claim 3 , wherein the fixed sensor bracket comprises a guide for guiding the adjustable sensor bracket.5. The seal assembly according to claim 1 , wherein the sensor is a contact sensor.6. The seal assembly according to claim 1 , wherein the sensor is a proximity sensor.7. A sieve assembly comprising:a housing comprising an opening;a sieve to sieve powder inside the housing;a lid to close the opening;a seal member to be pressed between the lid and the housing;a plurality of fasteners to connect the lid to the housing such that a distance between the housing and the lid is below a predetermined distance; anda plurality of sensors to detect the distance between the housing and the lid.8. The sieve assembly according to claim 7 , wherein the housing comprises a rim around the opening claim 7 , the rim comprising fastening portions to fasten the plurality of fasteners and rim portions between two consecutive ...

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Номер записи: 9

16-01-2020 дата публикации

Additive Metal Manufacturing Process

Номер: US20200016653A1

Автор: G. B. Kirby Meacham

Принадлежит: Individual

Three dimensional “green” parts are formed by combining sheet layers comprising metal powder bound together by a polymer. The “green” parts are then sintered to drive off the polymer and consolidate the metal powder to produce a monolithic metal part. Particularly, the invention is directed to processes for forming and stacking the shaped sheet layers that are readily automated and preserve the high value powder metal and polymer sheet trim scrap for reuse resulting in an additive overall process with little material waste. The invention includes processes in which “green” elements formed by methods such as three dimensional printing are incorporated into the “green” stack and become an integral part of the final sintered part. It further includes processes in which “green” sheet layers are shaped by means such as hot bending or vacuum forming to provide three dimensional part features.

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Номер записи: 10

25-01-2018 дата публикации

Method for managing a powder in an additive manufacturing facility comprising a plurality of machines

Номер: US20180021855A1

Автор: Christian Geay, Christophe De Lajudie, Jean-Luc Petit-Jean

Принадлежит: Compagnie Generale des Etablissements Michelin SCA

An additive-manufacturing facility and a method for managing a powder transported to and from additive-manufacturing machines of the facility are provided. According to the method, a volume of feedstock powder is stored, and the machines are automatically fed with powder from the volume of feedstock powder. For each machine, the powder fed to the machine undergoes at least one layering operation during an additive-manufacturing cycle, and excess powder in the layering operation is moved away and conveyed from the machine to the volume of feedstock powder. For each machine, recovered powder, which is derived from cleaning rough components produced by the machine, is reintroduced into the volume of feedstock powder. A same collection circuit is used to convey the excess powder and the recovered powder to the volume of feedstock powder.

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Номер записи: 11

28-01-2021 дата публикации

3-dimensional object-forming apparatus

Номер: US20210023788A1

Автор: Akio Shimoda, Kazunori Kawai, Keisuke Takahashi, Takaharu Echigo

Принадлежит: Honda Motor Co Ltd

A 3dimensional object-forming apparatus is provided which may avoid lowering of irradiation efficiency of laser light due to fumes and so forth while avoiding lowering of quality of the formed object. A shroud 20 includes an inside partition wall portion 21 that demarcates an inside space S1 which extends from one end opening 202 to another end opening 206, and an outside partition wall portion 22 that opens in the other end opening 206 of a shroud 20 on an outside of the inside space S1 and demarcates, together with the inside partition wall portion 21, an outside space S2 which closes in a position closer to the one end opening 202 than the other end opening 206 of the shroud. A ventilation area of the inside space S1 in the other end opening 206 of the shroud 20 is larger than the ventilation area of the inside space S1 in an upstream portion closer to the one end opening 202 than the other end opening 206.

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Номер записи: 12

17-02-2022 дата публикации

METHOD FOR RELEASING METAL SUPPORT STRUCTURES IN AN ADDITIVE MANUFACTURING PROCESS

Номер: US20220048114A1

Автор: Günster Jens, Zocca Andrea

Принадлежит: Bundesrepublik Deutschland, vertreten durch den Bundesminister für Wirtschaftund Energie

Method for additive manufacturing of a metallic component includes providing a metallic powder; providing and/or producing a metallic support structure on a build platform, wherein the metallic support structure has at least one detachment point having an electrical resistance different than an electrical resistance of an adjacent section of the support structure and an electrical resistance of an adjacent section of the metallic component; consolidating the metallic powder with formation of the metallic component and, optionally, with formation of the metallic support structure at least in sections, wherein the metallic support structure connects the metallic component to the build platform; releasing the metallic component from the metallic support structure by bringing about an electrical current in the detachment point. 1. Method for additive manufacturing of a metallic component , comprising:providing a metallic powder;providing and/or producing a metallic support structure on a build platform,wherein the metallic support structure comprises at least one detachment point having an electrical resistance that is different than an electrical resistance of an adjacent section of the support structure and than an electrical resistance of an adjacent section of the metallic component;consolidating the metallic powder with formation of the metallic component,wherein the metallic support structure connects the metallic component to the build platform;releasing the metallic component from the metallic support structure,wherein releasing the metallic component is effected by bringing about an electrical current in the detachment point, by virtue of the electrical current providing a thermal energy required for melting the detachment point.2. Method according to claim 1 , further comprising:at least partly recuperating powder from the metallic component and the support structure,wherein providing the metallic powder and consolidating are effected layer by layer.3. Method ...

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Номер записи: 13

17-02-2022 дата публикации

3d printer

Номер: US20220048252A1

Автор: Byeong Cheol Baek, Dong Geun Lee, Goo Sang Jung

Принадлежит: Conception Co Ltd, Wonkwang E&Tech Co Ltd

Disclosed is 3D printer that may precisely irradiate a laser to a spot where the laser is to be irradiated so that a precise three-dimensional product may be output, and prevent a temperature deviation from occurring inside a case including a product forming chamber to improve the quality of the output product, and increase the durability of the output product by enhancing the binding force between powder and powder applied to an output bed and maximizing the melting of the powder.

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Номер записи: 14

31-01-2019 дата публикации

Apparatus for additively manufacturing three-dimensional objects

Номер: US20190030814A1

Автор: Andreas Ullrich, Christian Diller, Jens Stammberger, Viktor Engel, Wolfgang Lauer

Принадлежит: CONCEPT LASER GMBH

Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material (3) which can be consolidated by means of an energy beam (4), the apparatus (1) comprising a process chamber (8) and a stream generating device (9) configured to generate a gaseous fluid stream at least partly streaming through the process chamber (8), the gaseous fluid stream being capable of being charged with non-consolidated particulate build material, particularly smoke or smoke residues generated during operation of the apparatus (1), while streaming through the process chamber (8), wherein the stream generating (9) device comprises at least two separate stream generating units (13, 14) each being configured to generate a respective gaseous fluid stream.

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Номер записи: 15

31-01-2019 дата публикации

Apparatus for manufacturing three-dimensional objects

Номер: US20190030815A1

Автор: David BÜCHNER

Принадлежит: CONCEPT LASER GMBH

Apparatus ( 1 ) for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material ( 2 ) which can be consolidated by means of an energy beam, with a process chamber ( 3 ) comprising at least a first and a second region ( 4, 5 ), wherein in the first region ( 4 ) build material ( 2 ) is applied and irradiated on a build plane ( 6 ), wherein a stream generating unit is provided that is configured to generate a stream of process gas ( 10 ) in the process chamber ( 3 ) separating the first region ( 4 ) from the second region ( 5 ).

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Номер записи: 16

09-02-2017 дата публикации

Systems and methods for post additive manufacturing processing

Номер: US20170036401A1

Автор: Joseph Samo, Matthew Donovan, Thomas J. Ocken

Принадлежит: Delavan Inc

A system for removing powder from an additively manufactured article includes a powder removal mechanism. The powder removal mechanism can include a build plate holder configured to hold a build plate at a distal end thereof. The powder removal mechanism can also include a first actuator that is configured to angle the build plate holder relative to gravity and a second actuator that is configured to rotate the build plate holder about a central axis of the build plate holder.

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Номер записи: 17

12-02-2015 дата публикации

Method and device for producing three-dimensional models

Номер: US20150042018A1

Автор: Andreas Hartmann, Daniel Gunther, Johannes Günther

Принадлежит: VOXELJET AG

The present invention relates to a method for producing three-dimensional objects based on computer data by repeated application in layers of a medium containing particulate material and selective solidification of the medium, whereby a feedstock made of medium in a build space is provided and a layer application of the medium takes place on a surface of the feedstock bordering the build space at an angle β and a solidification according to computer data occurs by use of a solidification unit, characterized in that the feedstock is not moved during build-up of the object.

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Номер записи: 18

18-02-2021 дата публикации

Powder module for an apparatus for additive manufacturing of three-dimensional object

Номер: US20210046547A1

Автор: Florian Bechmann, Frank Herzog, Frank Schödel

Принадлежит: CONCEPT LASER GMBH

A powder module for an apparatus for additive manufacturing of three-dimensional objects, comprising a powder chamber limiting a powder room that can be filled with powdered construction material and a carrying device arranged in the powder room and limiting the powder room at the bottom, wherein between at least one powder chamber wall limiting the powder room and the carrying device a gap extending at least partially along the powder chamber wall limiting the powder room is formed, through which powdered construction material from the powder room can enter a powder module section lying below the carrying device, wherein the gap opens out into a receiving section of a receiving element arranged or formed on the powder chamber, wherein the receiving section is formed as or comprises an especially ring-shaped circumferential flow channel structure provided for receiving construction material from the gap.

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Номер записи: 19

03-03-2022 дата публикации

Aluminum recovery method

Номер: US20220064758A1

Автор: Roberto Seno Junior

Принадлежит: BRASILEIRA DE ALUMINIO Cia

A process for the recovery of aluminum, or recycling process, is described, which is based on separating the aluminum contained in aseptic carton packs (1), flexible packs (2) and residual aluminum alloy powder (3) used in manufacturing additive, through the selective dissolution of aluminum in a solution known as Bayer liquor and/or caustic soda, with sodium aluminate (liquid) and hydrogen gas (H 2 , gaseous) products. Both products can be used in an alumina refinery, the sodium aluminate is used for the production of aluminum hydroxide and the hydrogen can be used as fuel for boilers, furnaces or similar.

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Номер записи: 20

01-03-2018 дата публикации

Three-dimensional printing and three-dimensional printers

Номер: US20180056391A1

Автор: Alan Rick Lappen, Benyamin Buller, Richard Joseph ROMANO, Thomas Blasius Brezoczky, Zachary Ryan Murphree

Принадлежит: Velo3D Inc

The present disclosure provides three-dimensional (3D) printing processes, apparatuses, software, and systems for the production of at least one desired 3D object. The 3D printer system (e.g., comprising a processing chamber, build module, or an unpacking station) described herein may retain a desired (e.g., inert) atmosphere around the material bed and/or 3D object at multiple 3D printing stages. The 3D printer described herein comprises one or more build modules that may have a controller separate from the controller of the processing chamber. The 3D printer described herein comprises a platform that may be automatically constructed. The invention(s) described herein may allow the 3D printing process to occur for a long time without operator intervention and/or down time.

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Номер записи: 21

10-03-2016 дата публикации

Three dimensional printer

Номер: US20160067781A1

Автор: Katsutaka MURANAKA, Shuichi Kawada, Shuji Okazaki

Принадлежит: Sodick Co Ltd

A lamination molding apparatus which can remove the non-sintered material powder after completion of lamination molding easily and with less time after completion of laminating/molding, is provided. According to embodiments of the present invention, a lamination molding apparatus to conduct lamination molding using a material powder, including: a chamber filled with an inert gas having a predetermined concentration; a molding table provided in the chamber, the molding table being capable of moving vertically; a powder retaining wall surrounding the molding table so as to retain the material powder supplied on the molding table; and a powder discharging section provided on or below the powder retaining wall, the powder discharging section being capable of discharging the material powder, is provided.

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Номер записи: 22

27-02-2020 дата публикации

Debinder for 3d objects

Номер: US20200061708A1

Автор: Daniel R. Jepeal, Paul E. Dresens

Принадлежит: Desktop Metal Inc

A debinder provides for debinding printed green parts in an additive manufacturing system. The debinder can include a storage chamber, a process chamber, a distill chamber, a waste chamber, and a condenser. The storage chamber stores a liquid solvent for debinding the green part. The process chamber debinds the green part using a volume of the liquid solvent transferred from the storage chamber. The distill chamber collects a solution drained from the process chamber and produces a solvent vapor from the solution. The condenser condenses the solvent vapor to the liquid solvent and transfer the liquid solvent to the storage chamber. The waste chamber collects a waste component of the solution.

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Номер записи: 23

17-03-2016 дата публикации

Production of substantially spherical metal powders

Номер: US20160074942A1

Автор: Pei Sun, Yang Xia, Ying Zhang, Zhigang Z. Fang

Принадлежит: University of Utah Research Foundation UURF

A method for producing a substantially spherical metal powder is described. A particulate source metal includes a primary particulate and has an average starting particle size. The particulate source metal is optionally ball milled and mixed with a binder in a solvent to form a slurry. The slurry is granulated to form substantially spherical granules, wherein each granule comprises an agglomeration of particulate source metal in the binder. The granules are debinded at a debinding temperature to remove the binder from the granules forming debinded granules. The debinded granules are at least partially sintered at a sintering temperature such that particles within each granule fuse together to form partially or fully sintered solid granules. The granules can then be optionally recovered to form a substantially spherical metal powder.

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Номер записи: 24

14-03-2019 дата публикации

Unpacking 3d printed objects

Номер: US20190077083A1

Автор: Ismael CHANCLON, Manuel Jimenez, Marc Morros, Marc Nicolau, Xavier Alonso

Принадлежит: Hewlett Packard Development Co LP

An apparatus is provided for unpacking objects built using build material in an additive manufacturing process, the apparatus comprising: an unpacking compartment; a collection hose to operate within the unpacking compartment to recover by suction non-fused build material from around built objects; and a recovered build material tank coupled to the collection hose to receive non-fused build material recovered by the collection hose; the apparatus to provision recovered non-fused build material from the recovered build material tank for an additive manufacturing process.

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Номер записи: 25

05-05-2022 дата публикации

METHOD FOR MANUFACTURING COBALT-BASED ALLOY STRUCTURE, AND COBALT-BASED ALLOY STRUCTURE OBTAINED THEREBY

Номер: US20220134428A1

Автор: AKIYAMA Yasuhiro, IMANO Shinya, SHIBAYAMA Takashi

Принадлежит: MITSUBISHI POWER, LTD.

In order to stably produce a structured article made of a metal with a complex shape, such as a turbine stator blade, while securing a sufficient mechanical strength, there is provided a method for manufacturing a cobalt-based alloy structure, the cobalt-based alloy structure including a first structure region comprising a hollow space and a second structure region filled in the hollow space. The method includes the steps of: forming the first structure region by additive manufacturing from a first cobalt-based alloy powder having a particle size distribution within a range of 5-85 μm and in D90 within a range of 40-80 μm; and forming the second structure region in the hollow space by hot isostatic pressing, the hollow space being filled with a second cobalt-based alloy powder with a particle size distribution within a range of 5-85 μm and in D90 within a range of 40-80 μm.

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Номер записи: 26

12-05-2022 дата публикации

INTERNET-ENABLED APPARATUS, SYSTEM AND METHODS FOR PHYSICALLY AND VIRTUALLY RENDERING THREE-DIMENSIONAL OBJECTS

Номер: US20220143919A1

Автор: Kaltenbach Christopher, Nihlen Luke, Ortiz Luis M.

Принадлежит:

Three-dimensional object bridge between virtual and physical worlds. A method, system, apparatus and/or computer-usable medium includes steps of selecting a three-dimensional item in a first state for subsequent rendering into a second state and rendering the three-dimensional item in the second state via the three-dimensional rendering apparatus. An additional step of locating a three-dimensional rendering apparatus for rendering the three-dimensional item in a second state can be included. The three-dimensional rendering apparatus can be configured as a kiosk (manned or unmanned), Internet-enabled vending machine, and the like. The first state can comprise a virtual state and the second state can comprise a physical state. Likewise, the first state can comprise a physical state and the second state can comprise a virtual state. Additionally, the three-dimensional item/object can be mapped in the first state for rendering in the second state. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. An apparatus for rendering a three-dimensional item , comprising: a three-dimensional manufacturing system contained in the manufacturing area for automatically manufacturing a three-dimensional item based on a data file received from a remote client over the wireless data network communications and stored in and retrievable from the data storage, the data file is indicative of the three-dimensional item;', '3-D (three-dimensional) printing materials stored in the material storage area wherein the 3-D printing materials are accessible by the three-dimensional manufacturing system for use by the three-dimensional manufacturing system in manufacturing the three-dimensional item in the manufacturing area, and wherein the materials are automatically supplied to the three-dimensional manufacturing system from the material storage area by the three-dimensional manufacturing system; and', 'a ...

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Номер записи: 27

12-05-2022 дата публикации

Support structure for 3d fabricated objects

Номер: US20220143925A1

Автор: Michael D. Derocher, Michael J. Shannon, Wesley R. Schalk

Принадлежит: Hewlett Packard Development Co LP

According to examples, an apparatus may include a processor and a memory on which are stored machine-readable instructions that when executed by the processor may cause the processor to access data for a 3D object to be fabricated. The instructions may also cause the processor to determine an orientation that the 3D object is to have relative to a support structure that is to support the 3D object the 3D object. The support structure may have an configuration and may be removed from the 3D object following a post-print processing of the 3D object. The instructions may further cause the support structure to be fabricated in first layers of build material particles and the 3D object to be fabricated in second layers of build material particles.

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Номер записи: 28

12-05-2022 дата публикации

Modulating a three-dimensional printer system based on a selected mode

Номер: US20220143927A1

Автор: Arthur H. BARNES, Hector Jose Lebron, Jake WRIGHT, Matthew A. Shepherd, Vanessa Verzwyvelt, Wesley R. Schalk

Принадлежит: Hewlett Packard Development Co LP

A control system for a three-dimensional printer includes an energy component interface, an agent depositing component interface, and control logic. The control logic controls the operation of an energy component through the energy component interface and an agent depositing component through the agent depositing component, in forming an output object that is specified in a print job. Additionally, in some examples, the control logic can implement a plurality of modes. Each mode, when selected modulate one or more operational parameters of a least one of the energy component or agent depositing component.

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Номер записи: 29

28-03-2019 дата публикации

High capacity apparatus for layered manufacturing from powdered materials

Номер: US20190091765A1

Автор: Brawley Valkenborgs, Filips Schillebeeckx, Jonas Van Vaerenbergh, Jos Verheyen, Luc Cuyt

Принадлежит: 3D Systems Inc

A three dimensional printing system includes a build module, a powder storage module, a powder transport conduit, a vertical powder transport module, and a powder layering apparatus. The build module has a lateral side. The powder storage module is located at least partially below the build module. The powder storage module has a lateral side and defines an internal volume for holding powder. The powder transport conduit transports the powder to a lateral location that is laterally offset from the lateral side of the powder storage module. The vertical powder transport module is laterally offset from the lateral sides of the build module and the powder storage module and includes a lower end for receiving powder from the lateral location and an upper end having a laterally extending powder outlet. The powder layering apparatus receives the powder from the laterally extending powder outlet.

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Номер записи: 30

28-03-2019 дата публикации

Rolling Type 3D Printing Device and Operation Method Thereof

Номер: US20190091805A1

Автор: Hsin-Pao Chen, Jui-Hsiung Yen

Принадлежит: Tongtai Machine and Tool Co Ltd

A rolling type 3D printing device for recycling powders and an operation method thereof are provided. The rolling type 3D printing device has a rolling mechanism, at least one optical module, and a powder conveying module. The rolling mechanism holds a workpiece and receives powders. Cylindrical or cone workpieces can be laminated by the rolling type 3D printing device through the design of the rolling mechanism.

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Номер записи: 31

21-04-2016 дата публикации

Three dimensional printer

Номер: US20160107232A1

Автор: Shuji Okazaki, Tsuyoshi Saito

Принадлежит: Sodick Co Ltd

A lamination molding apparatus capable of supplying a material powder steadily to a recoater head, is provided. A lamination molding apparatus including a chamber covering a desired molding region and being filled with an inert gas having a desired concentration; a recoater head moving in the chamber to supply a material powder on the molding region to form a material powder layer; and a material supplying unit to supply the material powder to the recoater head; wherein the recoater head includes a material holding section to hold the material powder; and a material discharging opening to discharge the material powder in the material holding section.

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Номер записи: 32

19-04-2018 дата публикации

Apparatus for laser materials processing

Номер: US20180104770A1

Автор: Christian Liebl, Steffen Schlothauer

Принадлежит: MTU Aero Engines AG

An apparatus for laser materials processing including a laser ( 4 ) for generating a laser beam and a laser head ( 5 ) which is movable along at least one spatial direction and is connected to the laser via a light guide, and which emits a laser beam ( 7 ) capable of processing a material. The present invention also relates to an apparatus for selective laser melting or selective laser sintering having an apparatus for laser materials processing.

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Номер записи: 33

02-04-2020 дата публикации

Additive manufacturing systems and method

Номер: US20200101535A1

Автор: James R. Dobbs

Принадлежит: Boeing Co

An additive manufacturing system includes a plate, a build support device, at least one electromagnetic energy source, and one or more processors. The plate is at least semitransparent. The build support device is movable relative to the plate to move an object into and out of contact with a stratum of a powder distributed on a first side of the plate. The powder includes metal particles. The one or more processors control the at least one electromagnetic energy source to emit one or more energy beams that penetrate through the plate and impinge upon a selected portion of the powder in the stratum upon exiting the plate to form a layer of the object.

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Номер записи: 34

26-04-2018 дата публикации

Operation of three-dimensional printer components

Номер: US20180111319A1

Автор: Alexander Brudny, Daniel Thomas CHRISTIANSEN, Thomas Blasius Brezoczky

Принадлежит: Velo3D Inc

The present disclosure provides three-dimensional (3D) printing systems, apparatuses, methods and non-transitory computer readable media for the production of at least one desired 3D object. The 3D printer described herein comprises, inter alia, an opening that comprises a first side and a second side. A component of the 3D printing, such as a layer dispenser, may be conveyed from the first side of the opening to the second side of the opening (e.g., and vice versa) during the 3D printing. The opening may be closable. A closure of the opening may seclude the component during at least a portion of the 3D printing. Additional features relating to components of the 3D printing systems are described herein.

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Номер записи: 35

09-06-2022 дата публикации

ADDITIVE MANUFACTURING POWDER RECIRCULATION SYSTEM

Номер: US20220176454A1

Автор: Beeby David Edward, WHITTON David John

Принадлежит: RENISHAW PLC

An additive manufacturing powder recirculation apparatus including: a powder recirculation loop having: an inlet for receiving powder from an additive manufacture apparatus; an outlet for supplying powder to the additive manufacture apparatus; and a powder flow path extending between the inlet and outlet. A diverter valve in the powder flow path is configured to selectively place the powder flow in fluid communication with either the downstream powder recirculation loop or a hopper outside of the powder recirculation loop. 1. An additive manufacturing powder recirculation apparatus , the powder recirculation apparatus comprising:a powder recirculation loop having:an inlet for receiving powder from an additive manufacture apparatus;an outlet for supplying powder to the additive manufacture apparatus; anda powder flow path extending between the inlet and outlet;a diverter valve in the powder flow path, the diverter valve being configured to selectively place the powder flow in fluid communication with either the downstream powder recirculation loop or a hopper outside of the powder recirculation loop.2. An additive manufacturing powder recirculation apparatus as claimed in claim 1 , wherein the diverter valve comprises a valve element moveably positioned within the valve body and moveable by an actuator between a first position in which the outlet of the diverter valve is in fluid communication with the downstream powder recirculation loop and a second position in which the outlet is in fluid communication with a hopper outside of the powder recirculation loop.3. An additive manufacturing powder recirculation apparatus as claimed in claim 2 , wherein the diverter valve body comprises spaced apart inner and outer sidewalls with an outlet void defined therebetween.4. An additive manufacturing powder recirculation apparatus as claimed in claim 3 , wherein the outlet void is separated into a plurality of outlet ports each having an inlet aperture in communication with the ...

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Номер записи: 36

09-04-2020 дата публикации

Test specimen for validating operating parameters of a method for the additive manufacturing of a part by laser melting on powder beds

Номер: US20200111269A1

Автор: Alexis Marchand, Aurele Germain, Yann Danis

Принадлежит: Safran Helicopter Engines SAS

A test specimen for validating operating parameters of a method for the additive manufacturing of a part by laser melting on powder beds includes at least one upper face, at least one lower face and side faces, including a front side face and a rear side face that are substantially on opposite sides from one another. The test specimen has at least one recess opening onto the front and rear side faces, the recess having a substantially triangular cross sectional shape being delimited by three internal faces, including a first lower internal face oriented upwards, a second upper internal face oriented downwards, and a third upper internal face which defines a narrow wall with one other of the side faces, which is inclined.

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Номер записи: 37

24-07-2014 дата публикации

Method and device for conveying particulate material during the layer-wise production of patterns

Номер: US20140202381A1

Автор: Andreas Hartmann, Ingo Ederer

Принадлежит: VOXELJET AG

The present invention relates to apparatus, devices and methods for conveying particulate material during the manufacture of patterns in layers, wherein powder is conveyed out of a reservoir into a spreader unit and, if applicable, excess powder fed to the spreader unit is again conveyed back into the reservoir and wherein this conveying takes place in a closed conveying circuit.

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Номер записи: 38

04-05-2017 дата публикации

Part Manipulation Using Printed Manipulation Points

Номер: US20170120387A1

Автор: Erik Toomre, Eugene Berdichevsky, Francis L. Leard, Heiner Fees, James A. DEMUTH, Kourosh Kamshad

Принадлежит: Seurat Technologies Inc

A manipulator device such as a robot arm that is capable of increasing manufacturing throughput for additively manufactured parts, and allows for the manipulation of parts that would be difficult or impossible for a human to move is described. The manipulator can grasp various permanent or temporary additively manufactured manipulation points on a part to enable repositioning or maneuvering of the part.

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Номер записи: 39

25-08-2022 дата публикации

Method And Apparatus For Support Removal Using Directed Atomized And Semi-Atomized Fluid

Номер: US20220266517A1

Автор: Bosinski Robert, Caplow Rich, Cultrara Nicholas, Hutchinson Daniel Joshua, Noble Matthew J., Paris Rowan, Valvo Michael

Принадлежит: PostProcess Technologies, Inc.

An apparatus and method for removing support material from and/or smoothing surfaces of an additively manufactured part (the “AM part”) is disclosed. The apparatus may include a chamber, a support surface within the chamber, one or more nozzles within the chamber, a tank positioned below the nozzles, and a diverter positioned between the nozzles and the tank. The support surface may be configured to support the AM part and may have one or more openings configured to allow the fluid to pass through the opening(s). The nozzles may be configured to spray a fluid at the AM part, and the spray may be an atomized or semiatomized spray of the fluid. The diverter comprises an umbrella or a diverter shield and diverts sprayed fluid from directly impacting the fluid being collected in the tank, whereby foaming of the fluid in the tank is reduced. 1. An apparatus for removing support material from and/or smoothing surfaces of an additively manufactured part , comprising:a chamber;a support surface within the chamber, and configured to support an additively manufactured part (the “AM part”);one or more nozzles within the chamber, and configured for spraying a fluid at said AM part;a tank configured to hold a volume of said fluid, wherein the tank is positioned to capture the fluid after the fluid is sprayed at the part; anda diverter positioned in a flow path between the one or more nozzles and the tank.2. The apparatus of wherein the diverter has a shallow conical shape.3. The apparatus of claim 1 , wherein the diverter is aligned so that the fluid being sprayed at the AM part impacts the diverter before the fluid reaches the tank.4. The apparatus of claim 1 , wherein the diverter comprises an umbrella that diverts fluid outward towards a peripheral edge thereof.5. The apparatus of wherein the peripheral edge of the umbrella is smaller than an upper open side of the tank claim 4 , whereby fluid flowing off the umbrella falls over the peripheral edge into the upper open side of ...

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Номер записи: 40

25-08-2022 дата публикации

Powder removal

Номер: US20220266519A1

Автор: Brendan T. Gustafson, David W. Morganson, Jason J. Purdy

Принадлежит: Hamilton Sundstrand Corp

A system includes an enclosed laser powder bed fusion (LPBF) containment volume. A powder drain is included below the containment volume configured to receive powder dropping from the containment volume by force of gravity. A valve below the powder drain is configured to allow passage with the valve in an open state of unfused powder from the drain into a powder collection volume separated from the containment volume by the valve, and prevent passage of powder from the drain into the collection volume with the valve in a closed state. A source of wetting agent is in fluid communication with the powder collection volume for capturing powder in the collection volume by wetting the powder. A moisture trap is operatively connected to the drain above the valve and is configured to capture moisture to prevent moisture from the collection volume migrating into the containment volume.

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Номер записи: 41

25-04-2019 дата публикации

Build material container

Номер: US20190118470A1

Автор: Angel SANTOS, Ismael CHANCLON, Marc Morros, Marc Nicolau, Xavier Alonso

Принадлежит: Hewlett Packard Development Co LP

There is provided a 3D printing build material container ( 31 ) comprising a reinforcement structure ( 34 ), a collapsible reservoir ( 33 ) to hold build material, a build material outlet structure ( 313 ), at least one first inlet structure ( 314, 316 ), and a second inlet structure ( 315 ). The reinforcement structure encloses an airtight space and the reservoir is disposed within the reinforcement structure. The build material outlet ( 313 ) structure is to allow build material to exit the reservoir. The at least one first inlet structure ( 314, 316 ) is to allow recycled build material to enter the reservoir and to selectively allow a gas to enter the reservoir. The second inlet structure ( 315 ) is to selectively allow a gas to enter a space between the reservoir and the reinforcement structure.

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Номер записи: 42

04-05-2017 дата публикации

Light recycling for additive manufacturing optimization

Номер: US20170123237A1

Автор: Erik Toomre, Eugene Berdichevsky, Francis L. Leard, Heiner Fees, James A. DEMUTH, Kourosh Kamshad

Принадлежит: Seurat Technologies Inc

A method and an apparatus pertaining to recycling and reuse of unwanted light in additive manufacturing can multiplex multiple beams of light including at least one or more beams of light from one or more light sources. The multiple beams of light may be reshaped and blended to provide a first beam of light. A spatial polarization pattern may be applied on the first beam of light to provide a second beam of light. Polarization states of the second beam of light may be split to reflect a third beam of light, which may be reshaped into a fourth beam of light. The fourth beam of light may be introduced as one of the multiple beams of light to result in a fifth beam of light.

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Номер записи: 43

01-09-2022 дата публикации

3D PRINTER WITH RESIDUAL POWDER REMOVAL DEVICE

Номер: US20220274179A1

Автор: Kang Sung Min, LEE Su Bong, SHIN Ki Soo

Принадлежит:

Provided is a 3D printer having a residual powder removal device, including: a cabinet configured to form an exterior and protect a plurality of parts embedded therein, a chamber configured to form a printing space where a 3D part is formed by being irradiated with a laser from a laser irradiator inside the cabinet, a concentration measurer configured to measure a concentration of metal powder scattered inside the chamber, a powder transfer unit configured to transfer the metal powder from inside the chamber, and a residual powder removal device configured to spray an inert gas into the chamber to forcibly scatter cohered metal powder, discharge the metal powder scattered inside the chamber to the outside along with the inert gas, and cause the metal powder to pass through a filter assembly so that the metal powder is filtered and the residual metal powder is removed from inside the chamber. 1. A 3D printer having a residual powder removal device , the 3D printer comprising:a cabinet configured to form an exterior and protect a plurality of parts embedded therein;a chamber which is configured to form a printing space, where a 3D part is formed by being irradiated with a laser from a laser irradiator inside the cabinet, and which has an inner edge formed to be rounded;a concentration measurer configured to measure a concentration of metal powder scattered inside the chamber;a powder transfer unit configured to transfer the metal powder from inside the chamber; anda residual powder removal device configured to spray an inert gas into the chamber to forcibly scatter cohered metal powder, discharge the metal powder scattered inside the chamber to the outside along with the inert gas, and cause the metal powder to pass through a filter assembly so that the metal powder is filtered and the residual metal powder is removed from inside the chamber,wherein the residual powder removal device includes a pump configured to force a gas flow, a gas flow path configured to guide a ...

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Номер записи: 44

01-09-2022 дата публикации

METAL POWDER MANAGEMENT SYSTEM FOR ADDITIVE MANUFACTURING

Номер: US20220274180A1

Автор: Carroll Philip Anthony, FERRAR Ben Ian, Herbert Francis William, Rushton John Robert, Weeks Nicholas Paul, Wooder Christopher

Принадлежит:

Closed-loop metal powder management methods for additive manufacturing. Virgin metal powder is provided in a closed powder container comprising at least one sensor, tracker, or optical device. The metal powder is transferred to an additive manufacturing system, a portion of a metal powder layer is consolidated, and excess metal powder is transferred from the additive manufacturing system to the powder container, a second powder container, or an internal powder container. Virgin metal powder or a second metal powder are added to the excess metal powder, a quality of the mixed powder is validated, the process is repeated at least once, and powder physical transfer data associated with at least one of the steps is collected and stored in a data repository. Powder material parameters may be measured and assessed, and may be also be stored in the data repository. 1. A closed-loop metal powder management method for additive manufacturing , the method comprising the steps of:a) obtaining a virgin metal powder suitable for additive manufacturing, the metal powder being disposed in a closed powder container comprising at least one sensor, tracker, or optical device;b) connecting the powder container to an additive manufacturing system with an automated metal powder transfer system to perform powder transfer in a closed loop, wherein the automated metal powder transfer system is controllable by at least one of a pneumatic or an electronic controller and is adapted to control delivery of a metered amount of metal powder to the additive manufacturing system;c) delivering metal powder from the powder container to the additive manufacturing system;d) operating the additive manufacturing system to form at least one layer of the metal powder over a build plate of the additive manufacturing system;e) consolidating a portion of the at least one metal powder layer, wherein an excess portion of the metal powder layer remains in powder form;f) repeating steps d) and e) at least once;g) ...

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Номер записи: 45

23-04-2020 дата публикации

Device for manufacturing three-dimensional shaped object and method for manufacturing three-dimensional shaped object

Номер: US20200122356A1

Автор: Hidefumi Nakamura, Yasutoshi Hideshima

Принадлежит: Seiko Epson Corp

A device for manufacturing a three-dimensional shaped object includes a table on which a layer of granulated powder is stacked, a layer formation portion that forms the granulated powder on the table into a layer having a predetermined thickness, a compression unit configured to compress a first region in the layer, a processing unit that processes the formation region of the three-dimensional shaped object in the layer, and a control unit that controls the compression unit to form the first region in which the granulated powder are crushed, and the second region in which the granulated powder are not crushed.

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Номер записи: 46

03-06-2021 дата публикации

INERTABLE CONTAINER FOR TRANSPORTING AN ADDITIVE MANUFACTURING POWDER

Номер: US20210162507A1

Автор: ANGELE Ludovic, EYERMANN DIDIER, González Antonio

Принадлежит:

An inertable container () for transporting an additive manufacturing powder comprises an inertable volume () and a main opening () granting access to the inside of this inertable volume, the inertable volume () comprising an upper portion () and a lower portion (), the main opening () being located in the lower portion () of the inertable volume, and the section (S) of the inertable volume () increasing gradually over at least part of the height (H) of the container () and from the lower portion () towards the upper portion () of the inertable volume. The main opening is equipped with a passive half-valve () allowing this main opening () to be closed in such a way as to be sealed in an airtight and humidity-proof manner. The container comprises at least two inerting tappings. 110.-. (canceled)11. An inertable container , for transporting an additive manufacturing powder , comprising an inertable volume and a main opening granting access to an inside of the inertable volume , the inertable volume comprising an upper portion and a lower portion , the main opening being located in the lower portion of the inertable volume , and a section of the inertable volume increasing gradually over at least part of a height of the container and from the lower portion toward the upper portion of the inertable volume ,wherein the main opening is equipped with a passive half-valve allowing the main opening to be closed in such a way as to be sealed in an airtight and humidity-proof manner, andwherein the container comprises at least two inerting tappings, at least one first upper tapping granting access to the upper portion of the inertable volume and at least one second lower tapping granting access to the lower portion of the inertable volume.12. The inertable container according to claim 11 , wherein claim 11 , with the passive half-valve comprising a body supporting a butterfly valve for closing the main opening of the container claim 11 , the passive half-valve comprises means ...

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Номер записи: 47

03-06-2021 дата публикации

METHOD AND APPARATUS FOR DETERMINING METAL POWDER CONDITION

Номер: US20210162509A1

Автор: Ferrar Ben, Robinson Ben

Принадлежит:

A method of determining the condition of a metal powder for use in an additive manufacturing process, involving processing an image of the powder to measure a surface property of the powder, such as colour, texture or particle shape. The proportion of powder whose measured surface property falls outside a pre-determined range is determined and can be used to decide whether or not the powder is suitable for re-use. The proportion is determined by identifying individual particles in the image which are identified as statistical outliers amongst all of the particles shown in the image when considering a measured surface property. The relevant proportion may be determined statistically. 1. A method of determining the condition of a metal powder for use in an additive manufacturing process , the method comprising the step of processing an image of the powder.2. A method as claimed in comprising the step of taking the image of the powder.3. A method as claimed in wherein the image is an optical image.4. A method as claimed in wherein the image is processed to measure a surface property of the powder claim 1 , such as colour or texture.5. A method as claimed in comprising the step of cropping the image.6. A method as claimed in comprising the step of checking the quality of the image.7. A method as claimed in wherein the image is formed by claim 1 , or divided into claim 1 , a plurality of image elements.8. A method as claimed in claim 7 , wherein the ratio of image elements in the image to the number of particles in the imaged powder is at least 100:1.9. A method as claimed in wherein image elements having a luminance below a threshold are identified and excluded from further processing.10. A method as claimed in comprising the step of calculating the ratio of image elements above and below the threshold.11. A method as claimed in wherein the image is processed to estimate the total number of particles of powder it shows.12. A method as claimed in where the image is ...

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Номер записи: 48

17-05-2018 дата публикации

Three-dimensional object production

Номер: US20180133957A1

Автор: Alejandro Manuel De Pena, David Ramirez Muela, Lihua Zhao

Принадлежит: Hewlett Packard Development Co LP

Apparatus to produce a three-dimensional object and methods of producing a three-dimensional object are described. In some examples, a first fluid comprising a colorant and a second fluid comprising an absorber to absorb electromagnetic radiation are applied on a layer of particulate material. Application of the second fluid to the layer of particulate material is in dependence on an ability of the first fluid to absorb the electromagnetic radiation.

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Номер записи: 49

18-05-2017 дата публикации

Continuous Linear Production in a Selective Laser Sintering System

Номер: US20170136544A1

Автор: Brett Ian Lyons

Принадлежит: Boeing Co

A method and apparatus for forming objects. Layers of precursor material may be placed on top of each other. The layers of precursor material may be selectively cured as the layers of precursor material are placed on top of each other to form an object and a frame associated with the object.

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Номер записи: 50

09-05-2019 дата публикации

Providing powder in three-dimensional (3d) additive manufacturing

Номер: US20190134897A1

Автор: Brent EWALD, Kenneth R. Williams, Michael F. Klopfenstein

Принадлежит: Hewlett Packard Development Co LP

In an example implementation, a method of providing build powder for additive manufacturing of a three-dimensional (3D) object includes blending input powders into a blended powder for producing a 3D object. During the blending, a material strength value of each input powder can be determined. Based on the material strength value of each input powder, a ratio of the input powders can be calculated to achieve a specified material strength in the blended powder. The feed rate of the input powders can then be adjusted according to the ratio.

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Номер записи: 51

10-06-2021 дата публикации

GAS FLOW SYSTEMS FOR AN ADDITIVE MANUFACTURING MACHINE

Номер: US20210170494A1

Автор: MAMRAK Justin, Redding MacKenzie Ryan

Принадлежит:

An additive manufacturing machine () includes a plurality of subsystems, such as a condensate evacuation subsystem () for removing byproducts of the additive manufacturing products near a powder bed, a closed loop subsystem () for cleaning contaminants from sensitive machine components (), and/or an electronics cooling subsystem () for cooling an electronics compartment (). Each subsystem () may include a dedicated gas circulation loop () that is operably coupled to a gas circulation device () for urging a clean flow of gas () to each of the subsystems () to perform a particular function. 1900. An additive manufacturing machine () comprising:{'b': '902', 'a build platform ();'}{'b': '904', 'a build unit ();'}{'b': 916', '902', '904', '918, 'a gantry () positioned above the build platform () and movably supporting the build unit () within a build area ();'}{'b': 940', '942', '944', '942', '946', '918, 'a condensate evacuation subsystem () comprising a condensate loop () and a first gas circulation device () operably coupled to the condensate loop () for circulating a first gas () through the build area (); and'}{'b': 960', '966', '968', '966', '962', '964', '900, 'a closed loop subsystem () comprising a purge air loop () and a second gas circulation device () operably coupled to the purge air loop () for circulating a second gas () over at least one sensitive component () of the additive manufacturing machine ().'}2900. The additive manufacturing machine () of claim 1 , further comprising:{'b': 980', '982, 'an electronics compartment () containing electronic components (); and'}{'b': 984', '986', '980', '988', '986', '990', '980', '982, 'an electronics cooling subsystem () comprising a cooling loop () in fluid communication with the electronics compartment () and a third gas circulation device () operably coupled with the cooling loop () for circulating a third gas () through the electronics compartment () to cool the electronic components ().'} ...

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Номер записи: 52

25-05-2017 дата публикации

Three-dimensional deposition device and three-dimensional deposition method

Номер: US20170144248A1

Автор: Hitoshi Yoshimura, Yoshiharu Ozawa

Принадлежит: Mitsubishi Heavy Industries Ltd

A three-dimensional deposition device and a three-dimensional deposition method used to manufacture a three-dimensional object with high accuracy are provided. A three-dimensional deposition device for forming a three-dimensional shape by depositing a formed layer on a base unit, includes: a powder supply unit which supplies a powder material by injecting the powder material toward the base unit; a light irradiation unit which irradiates the powder material feeding from the powder supply unit toward the base unit with a light beam so that the powder material is melted and the melted powder material is solidified on the base unit to thereby form the formed layer; and a control device which controls operations of the powder supply unit and the light irradiation unit.

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Номер записи: 53

15-09-2022 дата публикации

Rotational additive manufacturing systems and methods

Номер: US20220288850A1

Автор: Chor Yen YAP, Gregory S. Weaver, Krzysztof Artysiewicz, Michael Thomas Kenworthy, Samuel Noah Miller

Принадлежит: Divergent Technologies Inc

Systems and methods for rotational additive manufacturing are disclosed. An apparatus in accordance with an aspect of the present disclosure comprises a build floor, a depositor system configured to deposit a layer of powder onto the build floor, a motor system causing a rotational motion between the depositor system and the build floor, wherein the depositor system deposits the layer of powder during the rotational motion, a receptacle wall configured to contain the powder on the build floor, an energy beam source configured to apply an energy beam in an active area of the layer of powder to selectively fuse a portion of the powder in the active area to form a portion of a build piece and a gas flow system configured to provide a gas flow across the active area while the energy beam selectively fuses the portion of the layer of powder in the active area.

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Номер записи: 54

07-05-2020 дата публикации

Adapter for use with post additive manufacturing systems

Номер: US20200139434A1

Автор: Alexander MADINGER, Diana GIULIETTI

Принадлежит: Hamilton Sundstrand Corp

An adapter for connecting a component to a build plate holder of a system for removing powder from the component including a body having a primary surface for contacting the build plate holder and a secondary surface for contacting a mounting surface of the component. At least one connector is operable to couple the component to the body.

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Номер записи: 55

17-06-2021 дата публикации

METHODS FOR REMOVING LOOSE PARTICLES FROM AN OBJECT BUILT BY ADDITIVE MANUFACTURING

Номер: US20210178692A1

Автор: Hofmann Kathrin, SCHÖDEL Frank, WINIARSKI Daniel

Принадлежит:

Methods for removing an object from powder after forming the object in an additive manufacturing apparatus are provided. The method may include: positioning a cover over a build platform with the object being positioned within a powder; removing the build platform from the additive manufacturing apparatus with the cover positioned over the build platform; and thereafter, removing the powder from the build platform to expose the object. 1. A method for removing an object from powder after forming the object in an additive manufacturing apparatus , the method comprising:positioning a cover over a build platform, wherein the object is positioned within a powder;removing the build platform from the additive manufacturing apparatus with the cover positioned over the build platform; andthereafter, removing the powder from the build platform to expose the object.2. The method of claim 1 , further comprising:after positioning the cover over the build platform, securing the cover over the build platform.3. The method of claim 2 , wherein the cover is secured to the build platform such that powder is contained within the cover and the build platform.4. The method of claim 2 , wherein the build platform is secured on a base plate claim 2 , and wherein the cover is secured to the base plate such that powder is contained within the cover and the build platform.5. The method of claim 2 , wherein the powder is vacuumed off of the build platform with the cover positioned thereon.6. The method of claim 5 , wherein the cover includes a port configured to connect to a vacuum to remove the powder from the build plate.7. The method of claim 5 , wherein removing the powder from the build platform to expose the object comprises:connecting a vacuum line to a port within the cover; andsuctioning the powder through the port to remove the powder from the build platform.8. The method of claim 2 , wherein the cover includes a port in at a top position of the cover.9. The method of claim 8 , ...

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Номер записи: 56

22-09-2022 дата публикации

Integrated scale for powder in additive manufacturing machines

Номер: US20220297379A1

Автор: Joseph Samo, Nancy Hallbauer, Robert W. Vierhout, Thomas J. Ocken

Принадлежит: Delavan Inc

A system comprising an additive manufacturing machine configured to fuse stock powder, a supply vessel connected to the additive manufacturing machine for supplying the stock powder to the additive manufacturing machine, and a weight sensor system connected to the supply vessel. A controller operatively is connected to the weight sensor system configured to receive signals indicative of a weight of the stock powder in the supply vessel. The controller is configured to determine weight of the stock powder based on the signals.

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Номер записи: 57

14-05-2020 дата публикации

Melt Pool Monitoring System and Method for Detecting Errors in a Multi-Laser Additive Manufacturing Process

Номер: US20200147867A1

Автор: Scott Alan Gold

Принадлежит: General Electric Co

A system and method of monitoring a powder-bed additive manufacturing process using a plurality of energy sources is provided. A layer of additive powder is deposited on a powder bed and is fused using a first energy source, a second energy source, or any other suitable number of energy sources. The electromagnetic energy emissions at a first melt pool are monitored by a melt pool monitoring system and recorded as raw emission signals. The melt pool monitoring system may also monitor emissions from the powder bed using off-axis sensors or from a second melt pool using on-axis sensors, and these emissions may be used to modify the raw emission signals to generate compensated emission signals. The compensated emission signals are analyzed to identify outlier emissions and an alert may be provided or a process adjustment may be made when outlier emissions exceed a predetermined signal threshold.

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Номер записи: 58

30-05-2019 дата публикации

Additive manufacturing apparatus and related process

Номер: US20190160741A1

Автор: Anthony Joseph VINCIQUERRA, Scott Andrew Weaver

Принадлежит: General Electric Co

Additive manufacturing apparatus including a build module is presented. The build module includes a support structure; a powder supply chamber formed in the support structure; and powder applicator disposed on the support structure and located proximate to the powder supply chamber. The build module further includes a powder recovery chamber and a plurality of build plates spatially disposed around the powder recovery chamber, the plurality of build plates configured to move around the powder recovery chamber. The build module is configured such that during an additive manufacturing process step, a build plate of the plurality of build plates is disposed between the powder supply chamber and the powder recovery chamber, and the powder applicator is configured to distribute a required amount of the powder material from the powder supply chamber on the build plate and deposit any excess powder material in the powder recovery chamber. Related processes are also presented.

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Номер записи: 59

21-05-2020 дата публикации

Irradiation device for an apparatus for additively manufacturing three-dimensional objects

Номер: US20200156319A1

Автор: Tim Döhler

Принадлежит: CONCEPT LASER GMBH

Irradiation device ( 5 ) for an apparatus ( 1 ) for additively manufacturing three-dimensional objects ( 2 ) by means of successive layerwise selective irradiation and consolidation of layers of a build material ( 3 ) which can be consolidated by means of an energy source, which Irradiation device ( 5 ) comprises at least one irradiation unit ( 6 - 8 ), preferably an optical unit, arranged in a housing ( 9 ) of the Irradiation device ( 5 ), wherein a stream generating device ( 10 ) is provided that is adapted to guide a gas stream ( 11 ) that is adapted to be charged with residues present inside the housing ( 9 ) through the housing ( 9 ) of the Irradiation device ( 5 ) along a streaming path in which the gas stream ( 11 ) at least partially streams alongside or through the at least one irradiation unit ( 6 - 8 ) for removing residues from the housing ( 9 ).

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Номер записи: 60

01-07-2021 дата публикации

Different mixtures of build materials deliverable during a three dimensional print operation

Номер: US20210197449A1

Автор: David R. Otis, Jr., Justin M. Roman, Kevin E. Swier, Wesley R. Schalk

Принадлежит: Hewlett Packard Development Co LP

Example implementations relate to different mixtures of build materials deliverable during a three dimensional (3D) print operation. In some examples, a 3D print apparatus may include a delivery hopper to deliver build material to a print zone of the 3D print apparatus and a plurality of build material hoppers to which the delivery hopper is connected for receipt of at least one of a corresponding plurality of build materials. A controller of the 3D print apparatus may direct that variable proportions of a first build material relative to a second build material are receivable by the delivery hopper from the plurality of build material hoppers during the 3D print operation, where different mixtures of the variable proportions of the first build material and the second build material are deliverable to the delivery hopper during the 3D print operation.

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Номер записи: 61

01-07-2021 дата публикации

BUILD MATERIAL RECLAIM IN ADDITIVE MANUFACTURING

Номер: US20210197476A1

Автор: EWALD Brent

Принадлежит: Hewlett-Packard Development Company, L.P.

A three-dimensional (3D) printer and method for feeding powder to a build platform of the 3D printer, Incidental powder lost from the build platform is collected and fed to the build platform. 1. A method of operating a three-dimensional (3D) printer , comprising:feeding powder to a build platform of the 3D printer;collecting incidental powder lost from the build platform to give reclaim powder;feeding the reclaim powder to the build platform; andprinting a 3D object from build material via the build platform, the build material comprising the powder and the reclaim powder.2. The method of claim 1 , wherein collecting incidental powder comprises employing a vacuum system and a pneumatic conveying system to reclaim incidental powder lost from the build platform to give the reclaim powder.3. The method of claim 1 , wherein collecting incidental powder comprises:employing a vacuum system to collect the incidental powder lost from the build platform; andstoring the incidental powder as the reclaim powder in a vessel.4. The method of claim 1 , wherein the powder comprises new powder and recycle powder at a specified ratio claim 1 , wherein the reclaim powder comprises the specified ratio claim 1 , and wherein the build material comprises the new powder claim 1 , the recycle powder claim 1 , and the reclaim powder.5. The method of claim 4 , wherein collecting incidental powder lost from the build platform comprises collecting the incidental powder as reclaim powder without classifying the incidental powder as recycle powder but instead classifying the powder as the reclaim powder having the specified ratio claim 4 , and wherein feeding the reclaim powder comprises feeding the reclaim powder in-line with the new powder and the recycle powder to a build chamber associated with the build platform.6. The method of claim 4 , wherein the specified ratio comprises a weight ratio of new powder to recycle powder in a range of 0.2 to 0.8 claim 4 , and wherein collecting incidental ...

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Номер записи: 62

08-07-2021 дата публикации

ADDITIVE MANUFACTURING PARTICULATE BUILD MATERIAL MANAGEMENT STATION

Номер: US20210205889A1

Автор: ALONSO Xavier, CHANCLON Ismael, Roure Pastor Francesc

Принадлежит: Hewlett-Packard Development Company, L.P.

An additive manufacturing particulate build material management station (), comprising: a material management station body; a particulate build material supply conduit () with a particulate build material supply connector () to releasably connect to a particulate build material supply container () to couple flow of a fluid carrying a particulate building material supply from within the supply container () to the material management station body; and a station data processor () to read data from a data memory chip of the supply container () corresponding with a quantity of particulate build material associated with the supply container (), and to control the withdrawal of particulate build material from the supply container () based upon the quantity of particulate build material associated with the supply container (). 1. An additive manufacturing particulate build material management station , comprising:a material management station body;a particulate build material supply conduit with a particulate build material supply connector to releasably connect to a particulate build material supply container to couple flow of a fluid carrying a particulate building material supply from within the supply container to the material management station body; anda station data processor to read data from a data memory chip of the supply container corresponding with a quantity of particulate build material associated with the supply container, and to control the withdrawal of particulate build material from the supply container based upon the quantity of particulate build material associated with the supply container.2. A management station as claimed in claim 1 , comprising a quantity sensor to measure a quantity of particulate build material drawn into the material management station body from the supply container in the flow of fluid.3. A management station as claimed in claim 1 , comprising a quantity sensor to measure the weight of the supply container.4. A management ...

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Номер записи: 63

08-07-2021 дата публикации

POWDER BED FUSION APPARATUS

Номер: US20210205928A1

Автор: Beeby David Edward, CRITCHLEY Andrew Thomas, WHITTON David John

Принадлежит: RENISHAW PLC

A powder bed fusion apparatus including a build chamber, a build platform in the build chamber for supporting a powder bed, a layer formation device for forming layers of powder to form the powder bed, a scanner for scanning an energy beam across the powder bed to fuse the powder and a gas circuit for forming a gas flow across the powder bed. The gas circuit includes a separator for separating particles from gas in the gas circuit, a nozzle for propelling gas into the build chamber and an exhaust for extracting gas from the build chamber and delivering the gas to the separator. The exhaust includes an exhaust channel or opening located for receiving powder wiped from the powder bed and/or build platform. 1. A powder bed fusion apparatus comprising a build chamber , a build platform in the build chamber for supporting a powder bed , a layer formation device for forming layers of powder to form the powder bed , a scanner for scanning an energy beam across the powder bed to fuse the powder and a gas circuit for forming a gas flow across the powder bed , the gas circuit comprising a separator for separating particles from gas in the gas circuit , a nozzle for propelling gas into the build chamber and an exhaust for extracting gas from the build chamber and delivering the gas to the separator , the exhaust comprising an exhaust channel or opening located for receiving powder wiped from the powder bed and/or build platform.2. A powder bed fusion apparatus according to claim 1 , wherein the layer formation device forms layers of powder in a working plane and the exhaust channel or opening is located at or below the working plane.3. A powder bed fusion apparatus according to claim 1 , wherein the exhaust channel or opening is located such that powder displaced from the powder bed falls and/or flows into the exhaust channel or opening.4. A powder bed fusion apparatus according to claim 1 , comprising mechanical means for wiping the powder into the exhaust channel or opening. ...

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Номер записи: 64

08-07-2021 дата публикации

Dosing mechanisms for 3d printers

Номер: US20210206066A1

Автор: Brent EWALD

Принадлежит: Hewlett Packard Development Co LP

It is disclosed a 3D printing system and a build material spreading method for a 3D printer that comprises: moving a spreader in a first pass in a first direction over a pile of build material at a first separation distance from a dosing surface thereby sweeping a first amount of build material; modify the first separation distance by the distance adjustment unit to a second separation distance; and moving the spreader in a second pass in a second direction towards the build surface to sweep a second amount of build material in a direction towards the build surface

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Номер записи: 65

18-09-2014 дата публикации

Powder Distribution for Laser Sintering Systems

Номер: US20140271326A1

Автор: David H. CULLEN, Rafael Enrique HIDALGO

Принадлежит: 3D Systems Inc

There is provided improved laser sintering systems that increase the powder density and reduce anomalies of the powder layers that are sintered, that measure the laser power within the build chamber for automatic calibration during a build process, that deposit powder into the build chamber through a chute to minimize dusting, and that scrubs the air and cools the radiant heaters with recirculated scrubbed air. The improvements enable the laser sintering systems to make parts that are of higher and more consistent quality, precision, and strength, while enabling the user of the laser sintering systems to reuse greater proportions of previously used but unsintered powder.

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Номер записи: 66

05-07-2018 дата публикации

Optics in three-dimensional printing

Номер: US20180186067A1

Автор: Alexander Brudny, Alexander Varlakhanov, Benyamin Buller, Erel Milshtein, Lawrence Arnold Gunn

Принадлежит: Velo3D Inc

The present disclosure provides various apparatuses, systems, software, and methods for three-dimensional (3D) printing. The disclosure delineates various optical components of the 3D printing system, their usage, and their optional calibration. The disclosure delineates calibration of one or more components of the 3D printer (e.g., the energy beam).

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Номер записи: 67

06-07-2017 дата публикации

Apparatuses, Systems and Methods for Three-Dimensional Printing

Номер: US20170189963A1

Автор: Benyamin Buller, Erel Milshtein, Sherman SEELINGER

Принадлежит: Velo3D Inc

The present disclosure provides three-dimensional (3D) objects, 3D printing processes, as well as methods, apparatuses and systems for the production of a 3D object. Methods, apparatuses and systems of the present disclosure may reduce or eliminate the need for auxiliary supports. The present disclosure provides three dimensional (3D) objects printed utilizing the printing processes, methods, apparatuses and systems described herein.

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Номер записи: 68

22-07-2021 дата публикации

METHOD FOR IMPLEMENTING A MEASUREMENT SYSTEM EMBEDDED IN A COMPONENT OBTAINED BY POWDER MICRO-MELTING

Номер: US20210220915A1

Автор: DE PASQUALE GIORGIO, ROMEO MAURIZIO

Принадлежит:

Method for implementing a measurement system embedded in a device (D) obtained by powder micro-melting, comprising the steps of: —manufacturing (), by using a micro-melting technique, a covering element (), —manufacturing (), by using a micro-melting technique, a base portion () of the device (D) comprising a work chamber that comprises a sensor seat (), interrupting () the micro-melting process once the top of the sidewalls of the base portion () of the device (D) has been reached, opening said work chamber formed by the sensor seat (), and exposing the semifinished device (D) to the atmosphere, —removing () the unmelted metal powder that is present within the sensor seat (), —positioning () the sensor () within the sensor seat (), —positioning () said covering element (), previously manufactured during the first step (), over the sensor seat () containing the sensor (), and restoring the inertization of the work chamber and the controlled internal atmosphere, and—resuming () the micro-melting process to form, on the covering element (), a closing element () by completely coating the surface with a new layer of powder, which is then micro-melted, and continuing the normal micro-melting process until the device (D) is complete. 110-. (canceled)12. Method according to claim 11 , wherein claim 11 , during said step of manufacturing claim 11 , by using a micro-melting technique claim 11 , a device claim 11 , a cable seat is also formed claim 11 , in addition to said sensor seat claim 11 , for the passage of a power supply and/or data transmission cable connected to the sensor.13. Method according to claim 11 , wherein claim 11 , during said step of manufacturing claim 11 , by using a micro-melting technique claim 11 , a device claim 11 , the work chamber is kept under controlled atmosphere by blowing an inert gas claim 11 , for the purpose of evacuating the melting fumes and any combustion residues.14. Method according to claim 11 , wherein claim 11 , during said step ...

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Номер записи: 69

22-07-2021 дата публикации

3d printer

Номер: US20210221060A1

Автор: Byeong Cheol Baek, Dong Geun Lee, Goo Sang Jung

Принадлежит: Conception Co Ltd, Wonkwang E&Tech Co Ltd

Disclosed is 3D printer that may precisely irradiate a laser to a spot where the laser is to be irradiated so that a precise three-dimensional product may be output, and prevent a temperature deviation from occurring inside a case including a product forming chamber to improve the quality of the output product, and increase the durability of the output product by enhancing the binding force between powder and powder applied to an output bed and maximizing the melting of the powder.

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Номер записи: 70

13-07-2017 дата публикации

Method and device for producing three-dimensional models

Номер: US20170197367A1

Автор: Andreas Hartmann, Daniel Gunther, Johannes Günther

Принадлежит: VOXELJET AG

The present invention relates to a method for producing three-dimensional objects based on computer data by repeated application in layers of a medium containing particulate material and selective solidification of the medium, whereby a feedstock made of medium in a build space is provided and a layer application of the medium takes place on a surface of the feedstock bordering the build space at an angle β and a solidification cording to computer data occurs by use of a solidification unit, characterized in that the feedstock is not moved during build-up of the object.

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Номер записи: 71

27-06-2019 дата публикации

Removing Filling Material From A Cavity In A Component And Apparatus For Performing Same

Номер: US20190193148A1

Автор: Christoph Kiener

Принадлежит: SIEMENS AG

Various embodiments may include a method for removing filling material from a cavity in a manufactured component with a connection from the cavity opening to surroundings of the component, the method comprising: holding the component in a movable mounting; moving the component and at the same time removing the filling material through the connection opening; and executing a computer program with a processor, wherein the computer program instructs the processor to: analyze geometry data of the component including the connection opening; and calculate a necessary positioning of the component, based on the geometry data and gravitational force; and direct the movable mounting through a sequence of movements for moving the component in space to spill the filling material from the cavity through the connection opening out of the component.

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Номер записи: 72

18-06-2020 дата публикации

Method for melt pool monitoring using fractal dimensions

Номер: US20200189195A1

Автор: Thomas Graham Spears

Принадлежит: General Electric Co

A method of controlling an additive manufacturing process in which a directed energy source is used to selectively melt material to form a workpiece, forming a melt pool in the process of melting, the method comprising: using an imaging apparatus to generate an image of the melt pool comprising an array of individual image elements, the image including a measurement of at least one physical property for each of the individual image elements; from the measurements, mapping a melt pool boundary of the melt pool; computing a fractal dimension of the melt pool; and controlling at least one aspect of the additive manufacturing process with reference to the fractal dimension.

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Номер записи: 73

29-07-2021 дата публикации

3-d printer with gas exchange mechanism for removing contaminants during re-coating

Номер: US20210229361A1

Автор: Broc William Tenhouten, Eahab Nagi El Naga

Принадлежит: Divergent Technologies Inc

Techniques for cleaning a print chamber using a gas exchange structure and a re-coater are introduced. The gas exchange structure is coupled to the coater, and the two move in a same direction to benefit from the gas flow. In an embodiment, the gas exchange structure includes a manifold. Further, in an embodiment, a travelling wall may be coupled to a longitudinal axis of the re-coater in order to keep separate the clean chamber from the dirty chamber. The result is that gas contaminants caused largely by the fusion and melting processes are removed from the powder bed and chamber at each cycle, and the resulting 3-D produced component maintains a very high quality for a long period of time.

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Номер записи: 74

28-07-2016 дата публикации

Device and method for the manufacture or repair of a three-dimensional object

Номер: US20160214173A1

Автор: Maximilian Fisser

Принадлежит: MTU Aero Engines AG

The invention relates to a device for the manufacture or repair of a three-dimensional object, comprising at least one construction chamber for a successive solidification of at least one solidifiable material layer by layer in predefined regions for layer-by-layer buildup of the three-dimensional object or for layer-by-layer repair of individual regions of the three-dimensional object inside of the construction chamber, at least one coater that can travel for deposition of the material on at least one buildup and joining zone of a construction platform formed in the construction chamber, at least one inflow nozzle and at least one suction outlet nozzle for a process gas, with the inflow nozzle and the outlet nozzle being arranged in such a way that a gas flow that passes at least partially above the buildup and joining zone is created, and at least one overflow tank.

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Номер записи: 75

06-08-2015 дата публикации

Preparation of a component for use in a joint

Номер: US20150219133A1

Автор: Andrew Henstridge, Daniel Johns, Jonathan Meyer

Принадлежит: Airbus Operations Ltd

A joint including: a first component and a second component; the first component includes a bond region and an array of projections extending from the bond region, wherein the projections are embedded in the second component.

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Номер записи: 76

25-06-2020 дата публикации

Three-dimensional shaping apparatus, three-dimensional shaping system, and three-dimensional shaped article production method

Номер: US20200198243A1

Автор: Eizo Takahashi, Tsuyoshi Kitahara

Принадлежит: Seiko Epson Corp

A three-dimensional shaping apparatus coupled to a server includes a melting portion melting a material to form a shaping material, an ejection portion ejecting the shaping material supplied from the melting portion, a shaping stage where the shaping material ejected from the ejection portion is stacked, a moving mechanism changing a relative position of the ejection portion and the shaping stage, a shape data generation portion generating second shape data for representing a shape of a three-dimensional shaped article including a shape representing identification information for identifying the three-dimensional shaped article using first shape data and the identification information for identifying the three-dimensional shaped article, a controller controlling the melting portion and the moving mechanism according to the second shape data, thereby producing the three-dimensional shaped article, and a communication portion transmitting the identification information for identifying the three-dimensional shaped article and production information of the three-dimensional shaped article to the server.

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Номер записи: 77

04-07-2019 дата публикации

Method And Apparatus For Support Removal Using Directed Atomized And Semi-Atomized Fluid

Номер: US20190202126A1

Автор: Daniel Joshua HUTCHINSON, Marc FARFAGLIA

Принадлежит: PostProcess Technologies Inc

An apparatus and method for removing support material from and/or smoothing surfaces of an additively manufactured part (the “AM part”) is disclosed. The apparatus may include a chamber, a support surface within the chamber, and one or more nozzles within the chamber. The nozzles may be the same size or different sizes. The support surface may be configured to support the AM part. The support surface may have one or more openings sized and configured to allow the fluid to pass through the opening(s). The nozzles may be configured to spray a fluid at the AM part, and the spray may be an atomized or semi-atomized spray of the fluid.

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Номер записи: 78

05-08-2021 дата публикации

THERMAL CONTROL IN LASER SINTERING

Номер: US20210237158A1

Автор: Craeghs Tom, PAVAN Michele, VAN DEN ECKER Piet

Принадлежит:

The present disclosure relates to computer-implemented methods for tuning parameters associated with powder bed fusion processes of additive manufacturing, such as laser sintering. Disclosed herein are methods for determining scanning strategies on the basis of information about the build material, additive manufacturing apparatus, and desired or intended features of the part. 1. A computer-implemented method of preparing a scanning strategy for additive manufacture of a cross-sectional layer of a build , comprising:obtaining, in a computing device, thermal properties of a build material;deriving from the thermal properties, in the computing device, a range of temperatures suitable for processing the build material for additive manufacturing;obtaining, in the computing device, physical specifications of an additive manufacturing apparatus; wherein the scanning strategy is configured to maintain, for each point of the cross-sectional layer of the build, from the time that the point is first scanned until all points in the cross-sectional layer of the build have been scanned, a maintenance temperature within the range of temperatures suitable for processing the build material, and', 'wherein the scanning strategy is determined at least in part based on the physical specifications of the additive manufacturing apparatus, and, 'determining, in the computing device, a scanning strategy for the cross-sectional layer of the build,'}controlling scanning of the build material using the additive manufacturing apparatus according to the scanning strategy in order to build the cross-sectional layer.2. The method of claim 1 , wherein the thermal properties of the build material comprise temperatures at which the build material transitions to different states.3. The method of claim 1 , wherein the thermal properties of the build material comprise rates at which the build material heats or cools.4. The method of claim 1 , wherein the maintenance temperature is within a range ...

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Номер записи: 79

04-07-2019 дата публикации

Method for producing electronic components by means of 3d printing

Номер: US20190206629A1

Автор: Christoph Schnitter, Helmut Haas, Kamil Paul Rataj, Marcel HAGYMASI, Markus Weinmann

Принадлежит: HC Starck Tantalum and Niobium GmbH

A method for producing an electrical component via a 3D printing includes preparing a first layer which includes a valve metal powder, consolidating at least a portion of the valve metal powder of the first layer via a first selective irradiation with a laser, applying a second layer which includes the valve metal powder to the first layer, consolidating at least a portion of the valve metal powder of the second layer via a second selective irradiation with the laser so as to form a composite of the first layer and of the second layer, applying respective additional layers which include the valve metal powder to the composite, and consolidating at least a portion of the valve metal powder of the respective additional layers via a respective additional selective irradiation with the laser to thereby obtain the electrical component.

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Номер записи: 80

18-07-2019 дата публикации

Large-scale binder jet additive manufacturing system and method

Номер: US20190217385A1

Автор: Arunkumar Natarajan, Carlos Humberto Bonilla Gonzalez, Christopher A. Panczyk, Vadim Bromberg, Waseem Faidi, William T. Carter

Принадлежит: General Electric Co

The subject matter disclosed herein relates to additive manufacturing techniques, and more specifically, to additive manufacturing techniques that involve binder jet printing. A disclosed additive manufacturing system for fabricating an article includes a build unit and a positioning system operably coupled to the build unit. The positioning system is configured to move the build unit in at least three dimensions. The build unit includes a recoater portion configured to deposit a layer of powder within a build area of the additive manufacturing system. The build unit also includes a binder jetting portion configured to selectively deposit and cure a binder within a periphery of the deposited layer of powder to form a dynamic build envelope around the article being fabricated in the build area.

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Номер записи: 81

18-08-2016 дата публикации

Device and method for removing powder and apparatus for fabricating three-dimensional object

Номер: US20160236422A1

Автор: Shozo Sakura

Принадлежит: Ricoh Co Ltd

A powder removal device includes an air spray configured to blow an airflow including powder against a three-dimensional object including a plurality of fabrication layers, to remove unbonded powder from the three-dimensional object. Each of the plurality of fabrication layers includes bonded powder.

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Номер записи: 82

17-08-2017 дата публикации

Reclamation system for reactive metal powder for additive manufacturing system

Номер: US20170232552A1

Автор: Archie Lee Swanner, JR., Donnell Eugene Crear

Принадлежит: General Electric Co

A reclamation system for a metal powder, such as a reactive metal powder, is disclosed. The system may include a container; and a pressure source in fluid communication with the container for creating a selected pressure within the container, the container including: an inlet to a lower portion of the tank that is configured to hold a liquid, and an outlet. A controller controls the pressure source to control the pressure applied within the container between: a vacuum state creating a flow of air entrained metal powder to enter the inlet for forming a reclaimed metal powder by removing the metal powder from the air by immersion in the liquid, and an evaporation state that causes evaporation of the liquid to a gas that exits through the outlet. A condenser condenses the gas to a condensed liquid.

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Номер записи: 83

25-07-2019 дата публикации

Heated Gas Circulation System for an Additive Manufacturing Machine

Номер: US20190224748A1

Автор: David Richard BARNHART, Mark Richard Shaw

Принадлежит: General Electric Co

An additive manufacturing machine includes a heated gas circulation system for regulating the temperature of additive powder throughout an annular powder bed and parts formed therein. The additive manufacturing machine includes an annular build platform defining a plurality of perforations and a heated gas supply that provides a flow of heated air through the plurality of perforations and the powder bed. The additive manufacturing machine further includes a plurality of fairings for guiding the flow of heated gas to temperature sensitive regions to minimize temperature gradients within the powder bed which might otherwise result in distortion, thermal stresses, or cracking in the finished part.

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Номер записи: 84

26-08-2021 дата публикации

METAL POWDER FUSION MANUFACTURING WITH IMPROVED QUALITY

Номер: US20210260664A1

Автор: Hermans Wim, Muralidharan Gokula Krishna, Verhagen Bas, Watson Jonathan

Принадлежит:

A method of manufacturing a three-dimensional article is provided for a system including a powder handling module containing stored metal powder. The stored metal powder includes used metal powder that was previously part of the metal powder loaded into a print engine during a previous fabrication process. The method includes (1) loading a volume of the metal powder into an agitation device, (2) operating the agitation device until an avalanche angle of the metal powder is modified to within a specified range to provide a volume of usable metal powder, (3) loading the usable metal powder into a three-dimensional print engine, and (4) operating the print engine to fabricate a the three-dimensional article. This process improves coating quality within the print engine. Improving coating quality improves dimensional accuracy of the three-dimensional article along with reducing defects resulting from coating artifacts. 1. A method of manufacturing a three-dimensional article with a system including a powder handling module storing metal powder , the metal powder including used metal powder removed from a print engine after fabrication of a three-dimensional article , the method comprising:(1) loading a volume of the metal powder into an agitation device;(2) operating the agitation device until an avalanche angle of the metal powder is modified to within a specified range to provide a volume of usable metal powder;(3) loading the volume of usable metal powder into a three-dimensional print engine; and(4) operate the print engine to fabricate the three-dimensional article.2. The method of wherein the agitation device includes one or more of a motorized stirring device claim 1 , an ultrasonic transducer claim 1 , and a motorized vibratory device.3. The method of wherein operating the agitation device includes applying agitation for a time duration of at least one hour.4. The method of wherein operating the agitation device includes applying the agitation for a time ...

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Номер записи: 85

03-09-2015 дата публикации

Method for stabilizing a powder bed by means of vacuum for additive manufacturing

Номер: US20150246485A1

Автор: Andrea ZOCCA, Cynthia MORAIS GOMES, Jens Guenster, Thomas Muehler

Принадлежит: Bundesministerium fuer Wirtschaft und Technologie

The invention relates to a device and a method for stabilizing a powder bed by means of low pressure for an additive manufacturing method, wherein the device comprises: a container open at least on one side, comprising a bottom, at least one side wall and a container opening; a filter in or above the bottom and/or in the at least one side wall, wherein an area occupied by the filter corresponds to the area of the bottom or the area of the side wall and wherein the filter is substantially impermeable to a powder comprising the powder bed; and a connection at the bottom and/or at the side wall of the container or on a side of the filter facing away from the container opening, wherein the connection is suitable for connection to a suction pump, such that a powder bed arranged in the container is pressed against the filter and stabilized by means of a vacuum produced by the suction pump.

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Номер записи: 86

23-08-2018 дата публикации

Multi-phase sintering in binder jetting fabrication of metal objects

Номер: US20180236544A1

Автор: Brian Daniel Kernan, Christopher Anthony Craven, Ellen Elizabeth Benn, Michael Andrew Gibson, Michael J. Tarkanian

Принадлежит: Desktop Metal Inc

Devices, systems, and methods are directed to the use of nanoparticles for improving fabrication of three-dimensional objects formed through layer-by-layer delivery of an ink onto a powder of metal particles in a powder bed. More specifically, the ink may include nanoparticles of an inorganic material (e.g., a metal) that undergoes at least one phase change as the three-dimensional objects are heated. This phase change may facilitate achieving more uniform distribution of the inorganic material relative to the metal particles in the three-dimensional objects which, in turn, may improve strength of the three-dimensional objects being fabricated. Further, or instead, improved distribution of the inorganic material may reduce the likelihood of defects associated with subsequent processing of the three-dimensional objects.

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Номер записи: 87

08-08-2019 дата публикации

Powder management containers

Номер: US20190241378A1

Автор: Jacob Greenfield, Jerry Logsdon, Joseph Samo, Lukas Shea, Thomas J. Ocken

Принадлежит: Delavan Inc

A powder management container includes a keg body having first and second ports. The keg body has an interior for storing a metallic powder. The first port is defined by the keg body and is fluidly coupled to the keg body interior for transferring metallic powder into and from the keg body interior. The second port is defined by the keg body and is fluidly coupled to the keg body interior for controlling the atmosphere within keg body interior. Methods of making powder management containers and managing powder for additive manufacturing techniques are also disclosed.

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Номер записи: 88

30-07-2020 дата публикации

Tooling Assembly for Decreasing Powder Usage in a Powder Bed Additive Manufacturing Process

Номер: US20200238386A1

Автор: Andrew Ezekiel Wessman, Hongqing Sun, Jinjie Shi

Принадлежит: General Electric Co

A tooling assembly for mounting a plurality of components, such as compressor blades, in a powder bed additive manufacturing machine to facilitate a repair process is provided. The tooling assembly includes component fixtures configured for receiving each of the compressor blades, a mounting plate for receiving the component fixtures, and a complementary fixture defining a plurality of voids within which the compressor blades are received when the complementary fixture is mounted to the mounting plate such that less powder is required to fill the powder bed.

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Номер записи: 89

20-09-2018 дата публикации

Marking build material

Номер: US20180264722A1

Автор: David Ramirez Muela, Pol Fornos, Salvador SANCHEZ RIBES, Sergio PUIGARDEU ARAMENDIA

Принадлежит: Hewlett Packard Development Co LP

According to one example, there is provided a method of 3D printing. The method comprises generating, within a volume of build material, a volume of solidified build material, and marking a predetermined portion of unsolidified build material within the build volume with a marking agent.

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Номер записи: 90

13-08-2020 дата публикации

Inverted Laser Sintering Systems For Fabrication Of Additively-Manufactured Parts

Номер: US20200254688A1

Автор: Hod Lipson, John Whitehead

Принадлежит: Columbia University of New York

Provided is an additive manufacturing process that uses an upward-pointing illumination source, such as a laser, projected through a substrate so as to solidify particulate matter supported by the substrate. The process is then repeated to build a hanging part layer by layer, for example by replenishing particulate matter on the substrate, or by moving the part a second substrate that supports other particulate matter. The disclosed process eliminates the need for a large powder bed and also allows for sintering of different powders in a single layer so as to give rise to parts that include layers that are themselves made from multiple materials. Also provided are related methods, include methods of incorporated cured resins into parts made by fusing particulate matter.

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Номер записи: 91

05-09-2019 дата публикации

Apparatus and method for selective material fusion three-dimensional (3d) printing

Номер: US20190270136A1

Автор: Christopher John Elmer GIBSON

Принадлежит: Ord Solutions Inc

The present disclosure is directed at a system, apparatus and method for printing a full color multiple material 3D object or objects. This disclosure uses fusing (melting or sintering) of selectively deposited powdered material onto thin two-dimensional layers, that are stacked consecutively to the height of the object being printed. At least two materials are deposited, and the object's structural material is interspersed with removable infill, fully supporting the object on subsequent upper layers. When no more support is required above a layer, the removable infill is no longer deposited. Full colour is provided by selectively depositing a dithered combination of transparent, cyan, magenta, yellow, white and black materials around the outer surface of the object. Mixed materials are also supported such as gold coating on a glass, metal, or ceramic.

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Номер записи: 92

05-09-2019 дата публикации

Homogeneous suction during additive manufacturing

Номер: US20190270138A1

Автор: Björn Ullmann, Jörg Zaiß

Принадлежит: Trumpf Laser und Systemtechnik GmbH

A production device comprises a main housing, an optical system that provides a beam for the irradiation of powder in a building platform area of a working surface for producing a component layer by layer, and a shielding gas system for providing a two-dimensional stream of shielding gas. The shielding gas system has at least one outlet opening structure and a suction-removal opening structure on opposite sides of the main housing, and the two-dimensional stream of shielding gas flows over the working surface between the opposite sides. The shielding gas system also has at least one secondary outlet opening for the flowing in of gas in the direction of the two-dimensional stream of shielding gas, which is designed for the forming of at least one secondary stream of shielding gas, which plays a part in determining the flow profile of the two-dimensional stream of shielding gas.

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Номер записи: 93

04-10-2018 дата публикации

Material manipulation in three-dimensional printing

Номер: US20180281237A1

Автор: Alan Rick Lappen, James FRECHMAN

Принадлежит: Velo3D Inc

The present disclosure provides three-dimensional (3D) printing systems, apparatuses, software, and methods for the production of at least one requested 3D object. The 3D printer includes a material conveyance system, filtering system, and unpacking station. The material conveyance system may transport pre-transformed material against gravity. The 3D printing described herein comprises facilitating non-interrupted material dispensing through a component of the 3D printer, such as a layer dispenser.

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Номер записи: 94

13-10-2016 дата публикации

Apparatuses, systems and methods for three-dimensional printing

Номер: US20160297007A1

Автор: Benyamin Buller, Erel Milshtein, Sherman SEELINGER

Принадлежит: Velo3D Inc

The present disclosure provides three-dimensional (3D) objects, 3D printing processes, as well as methods, apparatuses and systems for the production of a 3D object. Methods, apparatuses and systems of the present disclosure may reduce or eliminate the need for auxiliary supports. The present disclosure provides three dimensional (3D) objects printed utilizing the printing processes, methods, apparatuses and systems described herein.

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Номер записи: 95

03-11-2016 дата публикации

Particle separator for an additive manufacturing system and method of operation

Номер: US20160318072A1

Автор: Alexander Staroselsky, Brooks E. SNYDER, Sergey Mironets, Thomas J. Martin, Thomas N. Slavens

Принадлежит: United Technologies Corp

A aerodynamic particle separator for an Additive Manufacturing System (AMS) has an air supply device to entrain a mixed powder in an airstream flowing through a housing. Each particle in the mixed powder is imparted with a momentum dependent upon the particle weight and size. Utilizing this momentum characteristic, the heavier particles are capable of crossing streamlines of the airstream at a bend portion of the housing and the lighter particles generally stay within the streamlines. Utilizing this dynamic characteristic, the particles of specific weight ranges are collected through respective offtake holes in the housing and controllably fed to a spreader of the AMS.

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Номер записи: 96

03-10-2019 дата публикации

System and method for machining workpiece and article machined therefrom

Номер: US20190299309A1

Автор: Andrew L. Trimmer, Bin Wei, Huiyu XU, Ming Jia, Pinghai Yang, Salahshoor Pirsoltan Meisam, Singh Prabhjot, William T. Carter, Yibo Gao, Yong Yang

Принадлежит: General Electric Co

A system is configured for machining a workpiece (100), the workpiece includes an interior surface (110) that defines an internal passage (112). The system includes an electrode (116) located within the internal passage and electrically isolated from the workpiece, an electrolyte supply, a power supply, and a remover. The electrolyte supply is configured for circulating an electrolyte in a gap between the electrode and the workpiece. The power supply is configured for applying a voltage between the electrode and the workpiece to facilitate smoothing the interior surface. The remover is configured for completely removing the electrode from within the internal passage after smoothing the interior surface.

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Номер записи: 97

17-11-2016 дата публикации

Multi-electron-beam melting and milling composite 3d printing apparatus

Номер: US20160332250A1

Автор: Junqi Li, Yan Nie, Yi Xu

Принадлежит: Yuanmeng Precision Technology Shenzhen Institute

The present application relates to the technical field of 3D printing apparatuses, and discloses a multi-electron-beam melting and milling composite 3D printing apparatus, which comprises a base, in which the base is provided with a machining platform, the base is further provided with a powder spreading structure a plurality of electron beam emitting structures and a milling head are arranged above the machining platform, the plurality of electron beam emitting structures are spacedly and circumferentially arranged outside the milling head the plurality of electron beam emitting structures are configured for emitting electron beams to melt the metal powder layer in partitions and thereby form a plurality of single-layer or multi-layer approximate bodies, and the milling head is configured for milling the plurality of single-layer or multi-layer approximate bodies.

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Номер записи: 98

08-11-2018 дата публикации

Skillful three-dimensional printing

Номер: US20180318928A1

Автор: Alan Rick Lappen, Benyamin Buller, Daniel CHRISTIANSEN, Erel Milshtein, Rueben Joseph MENDELSBERG, Thomas Blasius Brezoczky

Принадлежит: Velo3D Inc

The present disclosure various apparatuses, and systems for 3D printing. The present disclosure provides three-dimensional (3D) printing methods, apparatuses, software and systems for a step and repeat energy irradiation process; controlling material characteristics and/or deformation of the 3D object; reducing deformation in a printed 3D object; and planarizing a material bed.

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Номер записи: 99

15-11-2018 дата публикации

Device for storage of modular functional units

Номер: US20180326711A1

Автор: Frank Herzog

Принадлежит: CL Schutzrechtsverwaltung GmbH

A device (1) for storage modular functional units (2) to be used in the context of the generative production of three-dimensional objects, comprising—a storage device (7) including several storage partitions (9) which are configured for storage of at least one functional unit (2) and—a handling device (8) assignable or assigned to the storage device (7) for the handling of at least one modular functional unit (2), which is configured for application of at least one modular functional unit (2) in a given storage partition (9) and/or for removal of at least one modular functional unit (2) in a given storage partition (9) from this or any other storage partition (9).

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Номер записи: 100