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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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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4537. Отображено 100.
19-12-2013 дата публикации

Method for manufacturing a molybdenum sputtering target for back electrode of cigs solar cell

Номер: US20130336831A1
Автор: Hyun Kuk Park, Ik Hyun Oh, Jun Mo Yang, Seung Min Lee
Принадлежит: Individual

A method for manufacturing a molybdenum sputtering target for a back electrode of a CIGS solar cell is provided to minimize thermal activating reaction by employing an electric discharge plasma sintering process. The method for manufacturing a molybdenum sputtering target for a back electrode of a CIGS solar cell comprises the steps of: charging molybdenum powder in a mold of graphite material, mounting the mold in a chamber of an electric discharge sintering apparatus, making a vacuum in the chamber, forming the molybdenum powder to the final target temperature while maintaining constant pressure on the molybdenum powder, heating the molybdenum powder in a predetermined heating pattern when reaching the final target temperature, maintaining the final target temperature for 1 to 10 minutes, and cooling the inside of the chamber while maintaining a constant pressure.

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Номер записи: 1
26-12-2013 дата публикации

Process for local repair of a damaged thermomechanical part and part thus produced, in particular a turbine part

Номер: US20130344347A1
Автор: Juliette Hugot, Justine Menuey
Принадлежит: SNECMA SAS

A process and device in production of precise three-dimensional sinters of a shape substantially close to that of an original part, using flash sintering produced by spark plasma sintering (SPS) technology. A mold is produced in a die of an enclosure for SPS flash sintering, the mold being shaped as an impression of the original part. The following are deposited in successive layers in the mold: a layer based on a superalloy powder, a metallic protection layer, and a thermal barrier layer. In a sintering, pressurization is initiated and a pulsed current passes through, producing a rapid rise in temperature in accordance with a flash sintering cycle whose temperature, pressure, and duration are regulated, with at least one temperature plateau and one pressure plateau. The layer of superalloy forms, by diffusion, during the sintering, a bonding continuum of material with the part to be repaired.

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Номер записи: 2
07-01-2021 дата публикации

DIGITAL INTEGRATED MOLDING METHOD FOR DENTAL ATTACHMENTS

Номер: US20210000575A1
Автор: DENG Xianke, LIU Ruicheng, WU Liping, ZENG Yiwei, ZHANG Zhixiao, ZOU Shanfang
Принадлежит: CHENGDU TIANQI ADDITIVE MANUFACTURING CO., LTD.

A digital integrated molding method for dental attachments includes 3D design, aiming at acquiring 3D data of an attachment itself through 3D scanning of an attachment preform, carrying out modeling design directly on the basis of acquired data, adjusting corresponding positions of an inner-crown and an attachment, or a bridge and an attachment by design software, and directly designing the attachments of the inner-crown and the bridge into a whole; data processing, aiming at slicing the integrated inner-crown and attachment or bridge and attachment for additive manufacturing; and additive manufacturing, aiming at processing an integrated inner-crown, bridge or attachment. The molding method can greatly improve the molding accuracy of dental attachments, and ensure the relative accuracy of inner-crowns, bridges or attachments. 111-. (canceled)12. A digital integrated molding method for dental attachments , comprising the steps of:3D design: aiming at obtaining the data of a related part and an attachment, adjusting the relative position thereof, and designing the related part and the attachment directly as a whole;data processing: aiming at slicing the integrated related part and attachment required for additive manufacturing; andadditive manufacturing: printing the integrated related part and the attachment through additive manufacturing according to the slicing processing results;the additive manufacturing adopts the selective laser melting technology, and the plane scanning includes the following area scanning:contour scanning: scanning along the outer contour of the plane;internal stripe scanning: scanning the stripe in the internal area of the plane;{'b': '1', 'claim-text': {'br': None, 'i': D', 'ah, '1=·tanα'}, 'upper skin scanning: scanning the upper skin area inside the contour line, wherein the upper skin area is located on the side of the plane close to the upper surface of the preform, and the upper skin area is located between the outer contour line and ...

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Номер записи: 3
07-01-2021 дата публикации

Three-dimensional printing

Номер: US20210001401A1
Автор: David A Champion, James Mckinnell, Mohammed S Shaarawi, Vladek Kasperchik
Принадлежит: Hewlett Packard Development Co LP

In an example of a method for three-dimensional (3D) printing, build material layers are patterned to form an intermediate structure. During patterning, a binding agent is selectively applied to define a patterned intermediate part. Also during patterning, i) the binding agent and a separate agent including a gas precursor are, or ii) a combined agent including a binder and the gas precursor is, selectively applied to define a build material support structure adjacent to at least a portion of the patterned intermediate part. The intermediate structure is heated to a temperature that activates the gas precursor to create gas pockets in the build material support structure.

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Номер записи: 4
07-01-2021 дата публикации

PROCESSING SYSTEM, PROCESSING METHOD, COMPUTER PROGRAM, RECORDING MEDIUM AND CONTROL APPARATUS

Номер: US20210001403A1
Автор: KAWAI Hidemi
Принадлежит: NIKON CORPORATION

A processing system is provided with: a support apparatus that is configured to support a processing target; a processing apparatus that performs an additive processing by irradiating a processed area on the processing target with an energy beam and by supplying materials to an area that is irradiated with the energy beam; and a position change apparatus that changes a positional relationship between the support apparatus and an irradiation area of the energy beam from the processing apparatus, wherein the processing system forms a fiducial build object by performing the additive processing on at least one of a first area that is a part of the support apparatus and a second area that is a part of the processing target, and the processing system controls at least one of the processing apparatus and the position change apparatus by using an information relating to the fiducial build object. 1. A processing system comprising:a support apparatus that is configured to support a processing target;a processing apparatus that performs a processing by irradiating a processed area on the processing target with an energy beam;a position change apparatus that changes a relative positional relationship between the support apparatus and an irradiation area of the energy beam; anda control apparatus that controls the position change apparatus on the basis of a position information of a reference that is formed by performing the processing on at least one of the support apparatus and the processing target by the processing apparatus.2. The processing system according to claim 1 , whereinthe processing system further comprises a measurement apparatus that is configured to measure a relative positional relationship between the processing target and the reference.3. The processing system according to claim 1 , whereinthe processing system further comprises a measurement apparatus that is configured to measure a relative positional relationship between a part of the processing target ...

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Номер записи: 5
07-01-2021 дата публикации

Light Recycling For Additive Manufacturing Optimization

Номер: US20210001404A1
Автор: Berdichevsky Eugene, DeMuth James A., Fees Heiner, Kamshad Kourosh, Leard Francis L., Toomre Erik
Принадлежит:

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. 1. A method , comprising the steps of:multiplexing, by a first optical assembly, multiple beams of light including at least one or more beams of light from one or more light sources;reshaping and blending, by an optical device, the multiple beams of light to provide a first beam of light;applying, by a spatial polarization valve, a spatial polarization pattern on the first beam of light to provide a second beam of light;splitting, by a polarizer, polarization states of the second beam of light to reflect a third beam of light;reshaping, by a second optical assembly, the third beam of light into a fourth beam of light; andintroducing, by the second optical assembly, the fourth beam of light to the first optical assembly as one of the multiple beams of light to result in a fifth beam of light that is emitted through and not reflected by the polarizer.2. The method of claim 1 , wherein the receiving of the multiple beams of light including at least one or more beams of light from the one or more light sources comprises receiving at least the one or more beams of light from at least a solid state laser or a semiconductor laser.3. The method of claim 1 , wherein the applying of the spatial polarization pattern on the first beam of light comprises applying the spatial polarization pattern on the first ...

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Номер записи: 6
05-01-2017 дата публикации

Powder bed fusion apparatus

Номер: US20170001243A1
Автор: Seiji Hayano
Принадлежит: Aspect Inc

A powder bed fusion apparatus has an energy beam emitting section for outputting an energy beam, a thin layer forming section for forming a thin layer of a powder material, preliminary heating means for pre-heating the thin layer of the powder material, and control means for controlling modeling, wherein the control means performs forming the thin layer of the powder material, pre-heating the thin layer of the powder material, and modeling based on slice data, in which irradiation of the energy beam is started from the central region of the thin layer, and sequentially moved to a peripheral region of the thin layer.

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Номер записи: 7
07-01-2021 дата публикации

COMPACT BUILD TANK FOR AN ADDITIVE MANUFACTURING APPARATUS

Номер: US20210001551A1
Автор: Karlsson Kristofer
Принадлежит: ARCAM AB

Described is an additive manufacturing apparatus that includes a telescopic build tank operatively connected at opposing ends to a powder table and a build table. The telescopic build tank includes at least two segments telescopically coupled to one another, each of the at least two segments comprising a set of engagement grooves located on an interior surface of the at least two segments and a set of engagement pins located on an exterior surface of the at least two segments. The set of engagement pins is configured to engage with and travel along a corresponding set of engagement grooves of another of the at least two segments, and each engagement groove comprises a first axially extending channel positioned along a single axis and having at least one closed end, the at least one closed end being configured to impede separation of the at least two segments relative to one another. 1. An additive manufacturing apparatus for forming a three-dimensional article layer by layer from a powder , the additive manufacturing apparatus comprising:a powder table;a build table; anda telescopic build tank operatively connected at one end to the powder table and at an opposing other end a portion of the build table, the telescopic build tank comprising at least two segments telescopically coupled relative to one another, each of the at least two segments comprising a set of engagement grooves located on an interior surface of the at least two segments and a set of engagement pins located on an exterior surface of the at least two segments, the set of engagement pins of one of the at least two segments is configured to engage with and travel along a corresponding set of engagement grooves of another of the at least two segments, and', 'each engagement groove of the set of engagement grooves comprises a first axially extending channel positioned along a single axis and having at least one closed end, the at least one closed end being configured to impede further translation of a ...

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Номер записи: 8
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: 9
04-01-2018 дата публикации

SINTERING METHOD, MANUFACTURING METHOD, OBJECT DATA PROCESSING METHOD, DATA CARRIER AND OBJECT DATA PROCESSOR

Номер: US20180001381A1
Автор: Kimblad Hans, Malm Niclas, Olsérius Cornelia
Принадлежит:

A method is provided of sintering a green object body to form a manufactured object. The method comprises providing a green object body. The green object body comprises granular construction material bound together by a binder. The method comprises providing a green support body for supporting the green object body. The green support body comprises granular construction material bound together by a binder. The method comprises supporting the green object body with the green support body. The method comprises sintering the green support body together with the green object body supported by the green support body. A method of manufacturing an object, a method of processing object data, a data carrier carrying program instructions and an object data processor are also provided. 1. A method of sintering a green object body to form a manufactured object , comprising:providing a green object body, the green object body comprising granular construction material bound together by a binder;providing a green support body for supporting the green object body, the green support body comprising granular construction material bound together by a binder;supporting the green object body with the green support body; andsintering the green support body together with the green object body supported by the green support body.2. A method of manufacturing an object , comprising:depositing a first plurality of layers of a construction material;selectively binding portions of each deposited layer of the first plurality of layers to form a green support body; depositing a second plurality of layers of a construction material;selectively binding portions of each deposited layer of the second plurality of layers to form a green object body supported by the green support body; andsintering the green support body together with the green object body supported by the green support body.3. The method according to claim 1 , wherein the green object body and the green support body exhibit ...

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Номер записи: 10
04-01-2018 дата публикации

METHOD FOR PRODUCING A TURBOMACHINE PART BY MEANS OF A LASER PROCESS

Номер: US20180001383A1
Автор: MOTTIN Jean-Baptiste
Принадлежит: SAFRAN AIRCRAFT ENGINES

The invention relates to a method for producing a part by means of a laser beam, with a nozzle () that sprays a metal powder towards a substrate (). Initially, the trajectory of the nozzle is defined in a pre-determined manner, and then, during the production of the part (): 1. A method for producing or repairing a turbomachine part by means of a laser beam , wherein a nozzle sprays a metal powder towards a substrate so as to produce the part by successive depositions of layers on top of each other , in one direction , therefore making the nozzle follow a trajectory , and wherein the trajectory of the nozzle is initially defined in a pre-determined manner , and then , during the production of the part:referring to an orientation parallel to the direction of deposition of the layers, a theoretical reference distance that has been previously recorded and a real distance which is then measured are compared; andthe trajectory of the nozzle is modified on the basis of a non null deviation threshold between the theoretical reference distance and the measured real distance.2. The method of claim 1 , wherein:defining the predetermined trajectory of the nozzle initially includes a definition of said trajectory along a Z axis corresponding to said direction of deposition of the layers and a height of the part,the real distance is measured along said Z axis,and the trajectory of the nozzle is modified along said Z axis.3. The method of claim 1 , wherein:the part is produced while stepwise moving the nozzle away from the substrate, in said direction of deposition of the layers,the predetermined trajectory of the nozzle includes a predetermined number of such steps,and the trajectory of the nozzle is modified by changing said predetermined number of steps.4. The method of claim 1 , wherein:a predetermined number of said layers to be deposited corresponds to the predetermined trajectory of the nozzle,a modified number of said layers still to be deposited corresponds to the ...

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Номер записи: 11
03-01-2019 дата публикации

SHRINKING SUPPORT STRUCTURES

Номер: US20190001412A1
Автор: CHIANG Yet-Ming, Chin Ricardo, Fontana Richard Remo, FULOP Ricardo, Gibson Michael Andrew, Hart Anastasios John, MYERBERG Jonah Samuel, Schuh Christopher Allan, Verminski Matthew David
Принадлежит:

A variety of additive manufacturing techniques can be adapted to fabricate a substantially net shape object from a computerized model using materials that can be debound and sintered into a fully dense metallic part or the like. However, during sintering, the net shape will shrink as binder escapes and the base material fuses into a dense final part. If the foundation beneath the object does not shrink in a corresponding fashion, the resulting stresses throughout the object can lead to fracturing, warping, or other physical damage to the object resulting in a failed fabrication. To address this issue, a variety of techniques are disclosed for substrates and build plates that contract in a manner complementary to the object during debinding and sintering. 1. A method comprising:fabricating a support structure including a substrate for an object from a support material having at least one of a debind shrinkage rate and a sintering shrinkage rate matching a build material; andfabricating an object from the build material on the support structure, wherein the object has a net shape based on a computerized model, wherein the build material includes a powdered material for forming a final part and a binder system including one or more binders, wherein the one or more binders resist deformation of the object during a fabrication, a debinding, and a sintering of the object into the final part, and wherein the support structure is configured to match a shrinkage of the object during at least one of the debinding and the sintering.2. The method of further comprising fabricating the support structure on a build plate formed of a material that is debindable and sinterable.3. The method of wherein fabricating the support structure includes fabricating a build plate for use as the support structure by injection molding the build plate with the support material.4. The method of wherein fabricating the support structure includes fabricating a structural support for at least one of ...

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Номер записи: 12
03-01-2019 дата публикации

METHOD FOR MANUFACTURING THREE-DIMENSIONALLY SHAPED OBJECT

Номер: US20190001415A1
Автор: Abe Satoshi, MORIMOTO Masanori
Принадлежит: Panasonic Intellectual Property Management Co., Ltd.

A method for manufacturing a three-dimensional shaped object comprising an undercut portion by alternate repetition of a powder-layer forming and a solidified-layer forming, the repetition comprising: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification of the powder; and (ii) forming another solidified layer by newly forming a powder layer on the formed solidified layer, followed by an irradiation of a predetermined portion of the newly formed powder layer with the light beam. Especially, in the manufacturing method according to an embodiment of the present invention, a modeling process for pre-identifying the undercut portion is performed prior to a performance of the method. 1. A method for manufacturing a three-dimensional shaped object comprising an undercut portion by alternate repetition of a powder-layer forming and a solidified-layer forming , the repetition comprising:(i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification of the powder; and(ii) forming another solidified layer by newly forming a powder layer on the formed solidified layer, followed by an irradiation of a predetermined portion of the newly formed powder layer with the light beam,wherein a modeling process for pre-identifying the undercut portion is performed prior to a performance of the method.2. The method according to claim 1 , wherein a surface of a model of the three-dimensional shaped object to be manufactured is divided into a plurality of pieces in the modeling process claim 1 , and an extraction for a surface of the undercut portion is performed from the surface of the model of the three-dimensional shaped object claim 1 , based on a direction of a ...

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Номер записи: 13
02-01-2020 дата публикации

APPARATUS FOR ADDITIVELY MANUFACTURING THREE-DIMENSIONAL OBJECTS

Номер: US20200001532A1
Автор: Werner Jürgen
Принадлежит: CONCEPT LASER GMBH

Apparatus () for additively manufacturing three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam (), which apparatus () comprises an irradiation device () adapted to generate the energy beam (), wherein the irradiation device () comprises a beam guiding unit () that is adapted to guide the energy beam () in a build plane () in which build material () is applied, wherein the irradiation device () is adapted to generate at least one segmented track () comprising at least two first track segments () in which build material () is to be irradiated with the energy beam (). 112491696895461112498101718171795129518. Apparatus () for additively manufacturing three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam () , which apparatus () comprises an irradiation device () adapted to generate the energy beam () , wherein the irradiation device () comprises a beam guiding unit () that is adapted to guide the energy beam () in a build plane () in which build material () is applied , characterized in that the irradiation device () is adapted to generate at least one segmented track () comprising at least two first track segments () in which build material () is to be irradiated with the energy beam () , wherein the beam guiding unit () is adapted to move at least one beam guiding element () in a continuous motion , comprising at least two first motion parts () and at least one second motion part () between the at least two first motion parts () , wherein during at least one , in particular each , first motion part () the energy beam () is guided onto the build plane () and one first track segment () is generated , wherein the energy beam () is not guided onto the build plane () during the at least one second motion part ...

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Номер записи: 14
02-01-2020 дата публикации

METHODS AND SYSTEMS FOR ADDITIVE MANUFACTURING

Номер: US20200001533A1
Автор: HABIBI MOHSEN, Packirisamy Muthukumaran
Принадлежит:

Additive manufacturing (AM) exploits materials added layer by layer to form consecutive cross sections of desired shape. However, prior art AM suffers drawbacks in employable materials and final piece-part quality. Embodiments of the invention introduce two new classes of methods, solidification and trapping, to create complex and functional structures of macro/micro and nano sizes using configurable fields irrespective of whether they need a medium or not for transmission. Selective Spatial Solidification forms the piece-part directly within the selected build material whilst Selective Spatial Trapping injects the build material into the chamber and selectively directs it to accretion points in a continuous manner. In each a localized spatiotemporal concentrated field is established by configuring or maneuvering field emitters. These methods are suitable to create any 3D part with high mechanical properties and complex geometries. These layerless methods may be used discretely or in combination with conventional AM and non-AM manufacturing processes. 138-. (canceled)39. A system for forming three-dimensional (3D) structures comprising:a chamber;a plurality of surfaces, each surface forming a predetermined portion of the chamber;a plurality of discretized elements, each discretized element of the plurality of discretized elements for generating an emitted field of a predetermined type and associated with a surface of the plurality of surfaces;a plurality of field sources, each field source coupled to a predetermined subset of the plurality of discretized elements and each generating predetermined control signals of appropriate characteristics to each discretized element of the predetermined subset of the plurality of discretized elements in dependence upon control data received from a control unit; andthe control unit for generating the control data provided to the plurality of field sources; whereinthe control data is generated in dependence upon of model data ...

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Номер записи: 15
02-01-2020 дата публикации

3D PRINTER AND 3D PRINTING

Номер: US20200001537A1
Автор: TORRENT Anna, Trenchs Magana Albert, ZAMORANO Juan Manuel
Принадлежит: Hewlett-Packard Development Company, L.P.

A 3D printing system comprising: a selective solidification module to: form a printed article by processing a build material; and form a printed container encompassing the printed article and a portion of unused build material about the printed article, the printed container defining a first port and a second port fluidly connected to the first port. The 3D printing system further comprises a connector to couple to the first port or second port of the printed container; and a pump fluidly connected to the connector to cause a fluid to flow through the printed container from the first port to the second port such that the printed article is cooled by the fluid flow. 1. A 3D printing system comprising: form a printed article by processing a build material; and', 'form a printed container encompassing the printed article and a portion of unused build material about the printed article, the printed container defining a first port and a second port fluidly connected to the first port;, 'a selective solidification module toa connector to couple to the first port or second port of the printed container; anda pump fluidly connected to the connector to cause a fluid to flow through the printed container from the first port to the second port such that the printed article is cooled by the fluid flow.2. The 3D printing system of claim 1 , further comprising a post processing station to:receive a printed container; orreceive a printing bucket containing the printed container and unused build material surrounding the printed container;wherein the post processing station includes the connector and the pump.3. The 3D printing system of claim 1 , wherein the pump is a fluid injector to cause fluid to flow by injecting fluid into the printed container; orwherein the pump is a vacuum pump to cause the fluid to flow by pulling fluid through the printed container.4. The 3D printing system of claim 1 , further comprising a robotic arm to locate the printed container and drive the ...

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Номер записи: 16
03-01-2019 дата публикации

METHODS AND APPARATUS FOR MANUFACTURING A COMPONENT

Номер: US20190001572A1
Автор: SAVINGS David, TREPLETON Ross
Принадлежит:

A method of manufacturing a component comprising contacting a powder with a tooling comprising a main body and a removable element, applying a manufacturing process to the powder to form the powder into a component, removing the removable element from the tooling to form a recess, and inserting a separation tool into the recess to thereby apply a force to separate the component from the main body of the tooling. A tooling for forming a component from a powder, the tooling comprising a main body and a removable element which is removable from the main body to form a recess for the insertion of a separation tool to apply a force to separate the component from the main body of the tooling. 1. A method of manufacturing a component comprising:contacting a powder with a tooling comprising a main body and a removable element;applying a manufacturing process to the powder to form the powder into a component;removing the removable element from the tooling to form a recess; andinserting a separation tool into the recess to thereby apply a force to separate the component from the main body of the tooling.2. A method of manufacturing a component as claimed in claim 1 , wherein the removal of the removable element forms a recess which is in communication with a surface of the component claim 1 , and wherein the separation tool is inserted into the recess to contact the surface of the component and apply the force to separate the component from the main body of the tooling.3. A method of manufacturing a component as claimed in claim 1 , wherein the main body of the tooling is in contact with a surface of the component claim 1 , the tooling further comprising a buffer element separable from the main body and in contact with the surface of the component claim 1 , wherein removal of the removable element forms a recess which is in communication with the buffer element of the component claim 1 , and wherein the separation tool is inserted into the recess to contact the buffer element ...

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Номер записи: 17
01-01-2015 дата публикации

SYSTEMS AND METHODS FOR CREATING COMPENSATED DIGITAL REPRESENTATIONS FOR USE IN ADDITIVE MANUFACTURING PROCESSES

Номер: US20150004046A1
Автор: Carter William Thomas, Cheverton Mark Allen, Graham Michael Evans, Yang Pinghai
Принадлежит:

A system for fabricating a component includes an additive manufacturing device and a computing device. The additive manufacturing device is configured to fabricate a first component by sequentially forming a plurality of superposed layers based upon a nominal digital representation of a second component, which includes a plurality of nominal digital two-dimensional cross-sections, each corresponding to a layer of the first component. The computing device includes a processor, wherein for an ilayer of the first component, the processor is configured to (a) generate a cumulative compensation transformation; (b) apply the cumulative compensation transformation to the nominal digital two-dimensional cross-section corresponding to the ilayer to create an intermediate digital two-dimensional cross-section corresponding to the ilayer; (c) determine a local compensation transformation; and (d) apply the local compensation transformation to the intermediate digital two-dimensional cross-section corresponding to the ilayer. 1. A system for fabricating a component , said system comprising:an additive manufacturing device configured to fabricate a first component by sequentially forming a plurality of superposed layers based upon a nominal digital representation of a second component, wherein the nominal digital representation comprises a plurality of nominal digital two-dimensional cross-sections, each nominal digital two-dimensional cross-section corresponding to a layer of the first component; and{'sup': 'th', 'claim-text': [{'sup': 'th', '(a) generate a cumulative compensation transformation associated with the ilayer;'}, {'sup': th', 'th', 'th, '(b) apply the cumulative compensation transformation associated with the ilayer to the nominal digital two-dimensional cross-section corresponding to the ilayer to create an intermediate digital two-dimensional cross-section corresponding to the ilayer;'}, {'sup': 'th', '(c) determine a local compensation transformation for the ...

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Номер записи: 18
03-01-2019 дата публикации

METHOD AND APPARATUS FOR DIRECT WRITE MASKLESS LITHOGRAPHY

Номер: US20190004435A1
Автор: De Jager Pieter Willem Herman, MAURY Pascale Anne, VAN DE MOOSDIJK Michaël Josephus Evert, VAN DER WERF Robert Albertus Johannes
Принадлежит: ASML Netherlands B.V.

A patterning apparatus, including: a substrate holder constructed to support a substrate; a particle generator configured to generate particles in the patterning apparatus, the particle generator configured to deposit the particles onto the substrate to form a layer of particles on the substrate; and a pattern generator in the patterning apparatus, the pattern generator configured to applying a pattern in the patterning apparatus to the deposited layer of particles. 1. A patterning apparatus , comprising:a substrate holder constructed to support a substrate;a particle generator configured to generate particles in the patterning apparatus, the particle generator configured to deposit the particles onto the substrate to form a layer of particles on the substrate; anda pattern generator in the patterning apparatus, the pattern generator configured to applying a pattern in the patterning apparatus to the deposited layer of particles.2. The apparatus of claim 1 , wherein the pattern generator is configured to project a beam of radiation onto the substrate to at least partially sinter at least part of the particles on the substrate.3. The apparatus of claim 2 , further comprising an actuator to move the substrate and wherein the pattern generator is configured to project a plurality of modulated beams to the moving substrate in a pixel-grid imaging fashion.4. The apparatus of claim 1 , wherein the particle generator is configured to generate particles such that a width of a majority of the particles is less or equal to 15 nanometers.5. The apparatus of claim 1 , wherein the pattern generator is configured to produce a pattern in the layer by at least partially sintering at least part of the particles in the layer at a temperature of less than or equal to 200° C.6. The apparatus of claim 1 , wherein the particle generator comprises a spark discharge generator comprising an anode and a cathode and configured to generate a spark between the anode and the cathode claim 1 , ...

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Номер записи: 19
05-01-2017 дата публикации

MAGNETIC COMPOSITE AND METHOD OF MANUFACTURING THE SAME

Номер: US20170004910A1
Автор: KIM In Gyu, Lee Seung Ho
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

A magnetic composite and a method of manufacturing the same are provided. The magnetic composite includes a magnetic material including magnetic material particles and a metal alloy. 1. A magnetic composite comprising:a magnetic material comprising magnetic material particles; anda metal alloy.2. The magnetic composite of claim 1 , wherein the metal alloy is a eutectic alloy.3. The magnetic composite of claim 2 , wherein the eutectic alloy is a binary claim 2 , ternary claim 2 , quaternary claim 2 , or quinary alloy.4. The magnetic composite of claim 2 , wherein the eutectic alloy is an alloy comprising one or more elements selected from a group consisting of indium (In) claim 2 , tin (Sn) claim 2 , cadmium (Cd) claim 2 , bismuth (Bi) claim 2 , silver (Ag) claim 2 , gold (Au) claim 2 , lead (Pb) claim 2 , zinc (Zn) claim 2 , copper (Cu) claim 2 , germanium (Ge) claim 2 , silicon (Si) claim 2 , aluminum (Al) claim 2 , magnesium (Mg) claim 2 , calcium (Ca) claim 2 , and antimony (Sb).5. The magnetic composite of claim 1 , wherein the magnetic material particles are single phase particles dispersed in a binder comprising the metal alloy.6. The magnetic composite of claim 1 , wherein the magnetic material comprises at least one selected from a group consisting of a magnetocaloric material claim 1 , a soft magnetic material claim 1 , and a ferromagnetic material.7. The magnetic composite of claim 1 , wherein the magnetic material is an alloy claim 1 , an oxide claim 1 , or a nitride containing at least one selected from a group consisting of iron (Fe) claim 1 , manganese (Mn) claim 1 , cobalt (Co) claim 1 , nickel (Ni) claim 1 , niobium (Nb) claim 1 , yttrium (Y) claim 1 , lanthanum (La) claim 1 , cerium (Ce) claim 1 , praseodymium (Pr) claim 1 , neodymium (Nd) claim 1 , promethium (Pm) claim 1 , samarium (Sm) claim 1 , europium (Eu) claim 1 , gadolinium (Gd) claim 1 , terbium (Tb) claim 1 , dysprosium (Dy) claim 1 , holmium (Ho) claim 1 , erbium (Er) claim 1 , thulium ( ...

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Номер записи: 20
14-01-2016 дата публикации

Fluted additive manufacturing deposition head design

Номер: US20160008887A1
Автор: Brandon David Ribic, Johnny D. Grubbs, Pavlo Earle, Quinlan Yee Shuck
Принадлежит: Rolls Royce Corp

A material deposition head may include a body that defines first and second ends, an exterior surface, an interior surface, and one or more material delivery channels, where the exterior surface includes fluting. In some examples, a system may include a fluted material deposition head, a fluidized powder source, and an energy source.

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Номер записи: 21
11-01-2018 дата публикации

APPARATUS FOR ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL ARTICLES

Номер: US20180009033A1
Автор: Fager Mattias
Принадлежит:

A method for forming at least one three-dimensional article through successive fusion of parts of a powder bed, which parts correspond to successive cross sections of the three-dimensional article, the method comprising the steps of: providing a model of the at least one three-dimensional article; applying a first powder layer on a work table; directing a first energy beam from a first energy beam source over the work table causing the first powder layer to fuse in first selected locations according to corresponding models to form a first cross section of the three-dimensional article, where the first energy beam is fusing at least a first region of a first cross section with parallel scan lines in a first direction; varying a distance between two adjacent scan lines, which are used for fusing the powder layer, as a function of a mean length of the two adjacent scan lines. 1. An apparatus for forming at least one three-dimensional article through successive fusion of parts of a powder bed , which parts correspond to successive cross sections of the three-dimensional article , said apparatus comprising:a control unit having stored thereon a computer model of said at least one three-dimensional article; andat least one energy beam from at least one energy beam source, the at least one energy beam source being at least one of an electron beam or a laser beam, determine a length of at least one of two adjacent of two or more parallel scan lines either applied to the first powder layer or to be applied to the first powder layer;', 'set a distance between the two adjacent of two or more parallel scan lines as a function of the determined length, wherein the function of the determined length is such that as the determined length increases: (a) the distance increases while the determined length is less than a predetermined value, and (b) the distance is a constant value while the determined length is equal to or greater than the predetermined value; and', 'direct the at ...

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Номер записи: 22
11-01-2018 дата публикации

THREE-DIMENSIONAL MODELING DEVICE

Номер: US20180009064A1
Автор: MIYASHITA Takeshi
Принадлежит:

A three-dimensional modeling device includes a modeling section supplied with a material including a metal powder, a laser source adapted to emit a laser used to sinter or melt the metal powder, and an optical component through which the laser emitted from the laser source passes in the midway to the material on the modeling section. The optical component is provided with a first area, which faces to the modeling section, and through which the laser passes, and a second area higher in surface free energy than the first area is disposed in at least a part of a periphery of the first area. 1. A three-dimensional modeling device comprising:a modeling section supplied with a material including a metal powder;a laser source adapted to emit a laser used to sinter or melt the metal powder; andan optical component through which the laser emitted from the laser source passes in the midway to the material on the modeling section,wherein the optical component is provided with a first area, which faces to the modeling section, and through which the laser passes, anda second area higher in surface free energy than the first area is disposed in at least a part of a periphery of the first area.2. The three-dimensional modeling device according to claim 1 , whereinthe first area is provided with liquid repellency.3. The three-dimensional modeling device according to claim 1 , whereinthe second area is provided with lyophilicity.4. The three-dimensional modeling device according to claim 1 , whereinthe first area is provided with a moth-eye structure.5. The three-dimensional modeling device according to claim 1 , further comprising:a removing section adapted to remove a particle adhering to the first area. The present invention relates to a three-dimensional modeling device.In the past, there has been known a three-dimensional modeling device which irradiates metal powder with a laser to sinter, or melt and then solidify the metal powder to thereby manufacture a three-dimensional ...

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Номер записи: 23
11-01-2018 дата публикации

THREE-DIMENSIONAL MANUFACTURING METHOD, AND APPARATUS FOR MANUFACTURING THREE-DIMENSIONAL MANUFACTURED OBJECT

Номер: US20180009165A1
Автор: Agawa Teppei
Принадлежит:

A laser beam is irradiated onto material powder on a manufacturing table to solidify the material powder and form a solidified layer. The material powder is further deposited on the solidified layer and the laser beam is irradiated onto one part of the material powder to solidify the material powder. They are repeated to manufacture a manufactured object. An irradiation output value of the laser beam is determined based on measurement information regarding a deposition surface before depositing the material powder or regarding a surface state of the material powder after deposition that is acquired by a camera. Alternatively, the aforementioned irradiation output value is determined based on parity information regarding a number of solidified layers that were already solidified by irradiation of the energy beam, or determined in accordance with an irradiation output value used when solidifying a solidified layer solidified prior to deposition of the deposited material powder. 1. A method for manufacturing a three-dimensional manufactured object that includes a process of irradiating an energy beam onto one part of material powder that is deposited in a manufacturing area to solidify the material powder and form a solidified layer , and further depositing material powder on the solidified layer that is formed and irradiating an energy beam onto one part of the material powder to solidify the material powder , further comprising:measuring a surface state of a deposition surface of a substrate before depositing the material powder, or a surface state of the material powder that is deposited in the manufacturing area, andcontrolling an irradiation output of the energy beam based on the measurement result.2. The method for manufacturing a three-dimensional manufactured object according to claim 1 , wherein a result of measurement of a surface state of the material powder that is deposited in the manufacturing area is a surface state at a specific site of the material ...

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Номер записи: 24
11-01-2018 дата публикации

PRINT HEAD DROP DETECTORS

Номер: US20180009167A1
Автор: Alejandre Ignacio, COMAS Esteve, Culubret Sergi
Принадлежит:

In one example, a print head drop detector () is described. The print head drop detector () comprises a sampling volume and a fan () to cause an airflow though the sampling volume (). Detection apparatus to detect the presence of non-gaseous material within the sampling volume is also provided. 1. A print head drop detector comprisinga sampling volume;a fan to cause an airflow though the sampling volume; anddetection apparatus to detect the presence of non-gaseous material within the sampling volume.2. A print head drop detector according to wherein the non-gaseous material comprises airborne particles of build material used in generating a three-dimensional object and fluids dispensed from a print head.3. A print head drop detector according to in which the fan is to selectively cause airflow at a predetermined rate.4. Three-dimensional object generation apparatus comprising:a fabrication chamber in which an object is generated;an agent distributor to selectively deliver an agent onto portions of a layer of build material within the fabrication chamber; anda detector to monitor the ejection of agent from the agent distributor and to monitor the gaseous content of the fabrication chamber for particles dispersed therein.5. Apparatus according to in which the detector comprises:i. a sampling volume; andii. a fan to cause gaseous content of the fabrication chamber to flow through the sampling volume.6. Apparatus according to which comprises a processor to receive data from the detector and to determine:i. a performance indication for the agent distributor; andii. a concentration of particles within the gaseous content of the fabrication chamber.7. Apparatus according to in which the agent distributor comprises a set of nozzles and a mechanism to eject agent through a selected nozzle claim 6 , and the processor is to determine if agent is ejected from a selected nozzle.8. Apparatus according to in which the processor is to determine an indication of the size of a ...

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Номер записи: 25
11-01-2018 дата публикации

PRINT DEAD ZONE IDENTIFICATION

Номер: US20180009170A1
Автор: Cortes Sebastia, Vilajosana Xavier, Zeng Jun
Принадлежит: Hewlett-Packard Development Company, L.P.

A sensor may be to detect a property indicative of a print dead zone caused by a defect of build material to be used for generating the three-dimensional object or a malfunction of a heater that is to heat the build material, a build material distributor that is to provide the material, or a carriage. A processor may be to receive, from the sensor, dead zone data relating to the print dead zone, and to prevent the malfunction of the heater, the build material distributor, or the carriage, or to modify data representing the three-dimensional object to cause the three-dimensional object to be shifted such that three-dimensional object is to be printed outside the print dead zone. 1. A system comprising:a sensor to detect a property indicative of a print dead zone caused by a defect of build material to be used for generating the three-dimensional object or a malfunction of a heater that is to heat the build material, a build material distributor that is to provide the build material, or a carriage;a processor to receive, from the sensor, dead zone data relating to the print dead zone, and to prevent the malfunction of the heater, the build material distributor, or the carriage, or to modify data representing the three-dimensional object to cause the three-dimensional object to be shifted such that three-dimensional object is to be printed outside the print dead zone.2. The system of wherein the processor is to modify the data representing the three-dimensional object to cause the three-dimensional object to be shifted such that three-dimensional object is to be printed outside the print dead zone.3. The system of wherein the processor is to prevent the malfunction of the heater.4. The system of further comprising the heater claim 1 , wherein the print dead zone is caused by the malfunction of the heater.5. The system of wherein the property is a temperature of the build material.6. The system of wherein the sensor is a scan bar attached to a carriage or a ...

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Номер записи: 26
14-01-2021 дата публикации

Method And System For Manufacturing Small Adaptive Engines

Номер: US20210008620A1
Автор: Andrew VanOs LaTour, Christopher Paul Eonta, Stephen Ziegenfuss
Принадлежит: Molyworks Materials Corp

A method for manufacturing small adaptive engines uses a battlefield repository having cloud services that is configured to enable additive manufacturing (AM) of engine parts and assemblies. The method also uses a compilation of recipes/signatures for building the engine parts and the assemblies using additive manufacturing (AM) processes and machine learning programs. An additive manufacturing system and an alloy powder suitable for performing the additive manufacturing (AM) processes can be provided. In addition, the engine parts can be built using the additive manufacturing (AM) system, the alloy powder, the battlefield repository and the compilation of recipes/signatures. A system for manufacturing small adaptive engines includes the battlefield repository, the compilation of recipes/signatures, a foundry system for providing the alloy powder and an additive manufacturing (AM) system configured to perform the additive manufacturing (AM) processes.

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Номер записи: 27
14-01-2021 дата публикации

EXPEDITIONARY ADDITIVE MANUFACTURING (ExAM) SYSTEM AND METHOD

Номер: US20210008621A1
Автор: Andrew VanOs LaTour, Christopher Paul Eonta, Kai Prager, Matthew Charles, Tom Reed
Принадлежит: Molyworks Materials Corp

An expeditionary additive manufacturing (ExAM) system for manufacturing metal parts includes a mobile foundry system configured to produce an alloy powder from a feedstock, and an additive manufacturing system configured to fabricate a part using the alloy powder. The additive manufacturing system includes a computer system having parts data and machine learning programs in signal communication with a cloud service. The parts data can include material specifications, drawings, process specifications, assembly instructions, and product verification requirements for the part. An expeditionary additive manufacturing (ExAM) method for making metal parts includes the steps of transporting the mobile foundry system and the additive manufacturing system to a desired location; making the alloy powder at the location using the mobile foundry system; and building a part at the location using the additive manufacturing system.

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Номер записи: 28
14-01-2021 дата публикации

LONG AND HIGH RESOLUTION STRUCTURES FORMED BY ADDITIVE MANUFACTURING TECHNIQUES

Номер: US20210008623A1
Автор: Berdichevsky Eugene, DeMuth James A., Fees Heiner, Kamshad Kourosh, Leard Francis L., Toomre Erik
Принадлежит:

A method of additive manufacture suitable for large and high resolution structures is disclosed. The method may include sequentially advancing each portion of a continuous part in the longitudinal direction from a first zone to a second zone. In the first zone, selected granules of a granular material may be amalgamated. In the second zone, unamalgamated granules of the granular material may be removed. The method may further include advancing a first portion of the continuous part from the second zone to a third zone while (1) a last portion of the continuous part is formed within the first zone and (2) the first portion is maintained in the same position in the lateral and transverse directions that the first portion occupied within the first zone and the second zone. 1. An apparatus for additive manufacture in a three-dimensional space corresponding to longitudinal , lateral , and transverse directions that are orthogonal to one another , the apparatus comprising:a conveyor configured to sequentially advance each portion of a continuous part in the longitudinal direction from a first zone to a second zone;an energy patterning system configured to amalgamate, within the first zone, selected granules of a granular material with unamalgamated granules of the granular material removed within the second zone, wherein the conveyor is configured to advance a first portion of the continuous part from the second zone to a third zone while (1) a last portion of the continuous part is formed within the first zone and (2) the first portion is maintained in the same position in the lateral and transverse directions that the first portion occupied within the first zone and the second zone; anda processor configured to determine a current position or orientation of the continuous part by locating one or more features of a feature map in an intersecting wall that intersects two neighboring portions of the continuous part,wherein, in amalgamating the selected granules of the ...

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Номер записи: 29
14-01-2021 дата публикации

OPTIMISATION OF SUPPORTS FOR THE ADDITIVE MANUFACTURING OF A COMPONENT

Номер: US20210008624A1
Автор: Bunel Jacques Marcel Arthur, GRICOURT Thomas, OVAERE Nicolas, SOMAZZI Paul André, ZAMBELLI Sylvain
Принадлежит:

A method for producing, by additive manufacturing, a part including at least one surface that must be held during the manufacturing, the method including: a step of forming a raw part by additive manufacturing, the raw part including a support including a pillar and a head which is an alveolar element connecting the pillar to the surface to be held; and a step of detaching the support from the rest of the raw part. 16163. A method for obtaining , by additive manufacturing , a component including at least one surface (; ) that has to be supported during manufacture , including:{'b': '64', 'claim-text': [{'b': '66', 'a pillar () comprising a foot from which the manufacture of this pillar starts, this pillar being a block of material, and'}, {'b': 67', '66', '61', '63, 'a cap () which is a cellular element connecting the pillar () to the surface to be supported (; );'}], 'a step of forming by additive manufacturing a one-piece blank component on a build plate (T) comprising a support () including{'b': 64', '68, 'a step of detaching the support () from the rest of the blank component consisting in pulling on the foot () in the manner of a lever by following an arc path (C).'}264. The method according to claim 1 , wherein the step of detaching the support () includes:{'b': '66', 'the removal of the pillar () inducing a rupture at the cap, and'}{'b': 61', '63, 'a finishing step to suppress residues from the cap remained attached to the surface to be supported (; ).'}3666968716967. The method according to claim 1 , wherein the pillar () includes an inclined segment () that extends the foot () claim 1 , and a head () that terminates the inclined segment () and whereon the cap () is manufactured.468. The method according to claim 3 , wherein the foot () is directly erected from the build plate (T) from which the component starts the manufacture thereof.5216163. The method according to claim 1 , wherein the component is a bearing support () comprising at least one surface (; ...

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Номер записи: 30
10-01-2019 дата публикации

DEVICE FOR ADDITIVE MANUFACTURING BY SPRAYING AND FUSION OF POWDER

Номер: US20190009288A1
Автор: Carabin Gilles, Hascoet Jean-Yves
Принадлежит:

A nozzle for the additive manufacturing by spraying and fusion of powder along a hollow tapered stream. The nozzle includes an outer cone, an inner cone, and an intermediate cone. The powder is sprayed into the tapered annular space between the inner surface of the outer cone and the outer surface of the intermediate cone. The outer cone includes two portions detachably assembled along the axis of the cone by an assembler. 14-. (canceled)5. A nozzle for additive manufacturing by spraying and fusion of powder along a hollow tapered stream , comprising: a first portion comprising a ring comprising an inner tapered bore and a centring device coaxial with the inner tapered bore; and', 'a second portion detachably assembled to the first portion along an axis of the outer cone by an assembler, centered on the centring device;, 'an outer cone comprisesan inner cone;an intermediate cone; andwherein the powder being sprayed into a tapered annular space between an inner surface of the outer cone and an outer surface of the intermediate cone;wherein the second portion of the outer cone comprises a fusible portion configured to break or be deformed under a predetermined force without damaging the first portion.6. The nozzle according to claim 5 , wherein the first portion and the second portion of the outer cone are made of different materials.7. The nozzle according to claim 5 , wherein a conicity of an inner tapered bore of the second portion of the outer cone is different from a conicity of the inner tapered bore of the first portion.8. The nozzle according to claim 5 , further comprising a detector configured to detect a rupture of the fusible portion of the second portion.9. The nozzle according to claim 5 , wherein the assembler is a nut. The invention relates to an additive manufacturing device by spraying and fusion of powder. The invention more particularly relates to a nozzle for the spraying and the fusion by laser of a metal powder for the implementation of the so- ...

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Номер записи: 31
10-01-2019 дата публикации

Dmlm build release layer and method of use thereof

Номер: US20190009332A1
Автор: Todd Jay Rockstroh
Принадлежит: General Electric Co

A method for additive manufacturing utilizing a build plate with a release layer is provided. The method includes irradiating a first layer of powder in a powder bed to form a first fused region over a support. The first release layer is provided between the first fused region and the support. The method also includes providing a given layer of powder over the powder bed and irradiating the given layer of powder in the powder bed to form a given fused region. Providing the given layer of powder over the powder bed and irradiating the given layer of powder in the powder bed to form a given fused region are repeated until the object is formed in the powder bed. The object may be formed fusing individual layers with irradiation by laser or ebeam, or by binder jetting. The method further includes separating the object from the support by melting or dissolving the first release layer.

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Номер записи: 32
10-01-2019 дата публикации

ADDITIVE MANUFACTURING FACILITY WITH SUCCESSIVE NESTED CONFINEMENT CHAMBERS

Номер: US20190009334A1
Автор: EFFERNELLI ALBIN, GEAY CHRISTIAN, Pialot Frédéric, WALRAND GILLES
Принадлежит:

An additive manufacturing facility operating in an automated and contained manner. The facility includes a containment chamber inside which a plurality of additive manufacturing machines is installed, each machine comprising a manufacturing chamber, inside the containment chamber, a supply device and a supply circuit for supplying the various machines of the facility with an additive manufacturing powder, a conveying device for conveying additive manufacturing container/tray assemblies comprising at least one conveying chamber circulating between the various machines, and (4) a cleaning device comprising at least one cleaning chamber for cleaning, in an automated and contained manner, the additive manufacturing trays in the cleaning chamber. 1. An additive manufacturing facility operating in an automated and contained manner , the facility comprising:a containment chamber inside which is installed a plurality of additive manufacturing machines, each machine comprising a manufacturing chamber and making it possible to manufacture parts in an automated and contained manner inside the chamber;inside the containment chamber, a supply device and a supply circuit for supplying, in an automated and contained manner, the plurality of additive manufacturing machines with an additive manufacturing powder ready to be used in additive manufacturing;inside the containment chamber, a conveying device for conveying additive manufacturing container/tray assemblies or additive manufacturing trays, the conveying device comprising at least one conveying chamber circulating between the plurality of additive manufacturing machines in order to supply, in an automated and contained manner, the plurality of additive manufacturing machines with clean assemblies or trays and to retrieve, in an automated and contained manner, the assemblies or trays that have been used by the plurality of additive manufacturing machines along with the manufactured parts; andinside the containment chamber, a ...

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Номер записи: 33
10-01-2019 дата публикации

MOBILE AND SECURED ADDITIVE MANUFACTURING INSTALLATION

Номер: US20190009336A1
Автор: NICAISE JEAN-PIERRE
Принадлежит:

A mobile additive manufacturing installation () comprises a main self-supporting frame, a main manufacturing housing () closed in leaktight fashion, at least one main additive manufacturing machine (M) installed in the main manufacturing housing, a main inerting device (), a main circulation path () in the main manufacturing housing (), a main airlock (), and a main device () for treatment of the air circulating inside the main manufacturing housing (). The main treatment device () makes it possible to supply the inside of the main manufacturing housing () with air withdrawn outside the installation, to withdraw the air present in the main manufacturing housing () and in the main airlock (), and to manage the pressure of the air present in the main manufacturing housing () and in the main airlock (). 110.-. (canceled)11. A mobile additive manufacturing installation comprising:a main self-supporting frame which renders the installation transportable by road;a main manufacturing housing supported by the main self-supporting frame and closed in a leaktight manner by panels fixed to the main self-supporting frame;a main additive manufacturing machine installed inside the main manufacturing housing, the main additive manufacturing machine comprising a manufacturing chamber inside which is carried out an additive manufacturing process consisting of depositing additive manufacturing powder and fusing grains of the powder using a source of energy or of heat;a main inerting device configured to supply the manufacturing chamber of the main additive manufacturing machine with an inert gas and to capture the inert gas contaminated by fumes resulting from the additive manufacturing process inside the manufacturing chamber;a main circulation path provided in the main manufacturing housing along which an operator can circulate around the main additive manufacturing machine;a main airlock for entry and exit of at least one operator, the main airlock being supported by the main self ...

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Номер записи: 34
10-01-2019 дата публикации

MOBILE MULTI-HOUSING ADDITIVE MANUFACTURING INSTALLATION

Номер: US20190009337A1
Автор: NICAISE JEAN-PIERRE
Принадлежит:

A mobile additive manufacturing installation () comprises a main self-supporting frame (), a main manufacturing housing (), at least one main additive manufacturing machine (M) installed inside the main manufacturing housing, a main inerting device (), a main circulation path and a main airlock (). The mobile installation also comprises at least one auxiliary manufacturing housing connected to the main manufacturing housing (), at least one auxiliary additive manufacturing machine (M M) being installed in this auxiliary manufacturing housing, an auxiliary self-supporting frame () supporting this auxiliary manufacturing housing and independent of the main self-supporting frame (), and an auxiliary circulation path () being provided in the auxiliary manufacturing housing. 113-. (canceled)14. A mobile additive manufacturing installation comprising:a main self-supporting frame which renders the installation transportable by road;a main manufacturing housing supported by the main self-supporting frame and closed in a leaktight manner by panels fixed to the main self-supporting frame;a main additive manufacturing machine installed inside the main manufacturing housing, the main additive manufacturing machine comprising a manufacturing chamber inside which is carried out an additive manufacturing process consisting of depositing additive manufacturing powder and fusing grains of the powder using a source of energy or of heat;a main inerting device configured to supply the manufacturing chamber of the main additive manufacturing machine with an inert gas and to capture the inert gas contaminated by fumes resulting from the additive manufacturing process inside the manufacturing chamber;a main circulation path provided in the main manufacturing housing along which an operator can circulate around the main additive manufacturing machine;a main airlock for entry and exit of at least one operator, the main airlock being supported by the main self-supporting frame and closed in ...

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Номер записи: 35
10-01-2019 дата публикации

POWDER BED FUSION APPARATUS AND METHODS

Номер: US20190009338A1
Автор: HALL Liam David, Mcfarland Geoffrey, McMurtry David Roberts, Sutcliffe Christopher John, WESTON Robin Geoffrey
Принадлежит: RENISHAW PLC

A powder bed fusion apparatus in which selected areas of a powder bed are solidified in a layer-by-layer manner to form a workpiece, the powder bed fusion apparatus including a build chamber for maintaining an inert atmosphere or (partial) vacuum, a build sleeve located within the build chamber, a build platform for supporting the powder bed movable in the build sleeve, a powder applicator for forming powder layers of the powder bed and a radiation device for generating and steering a radiation beam across a surface of the powder bed to solidify areas of each layer, wherein the build sleeve is mounted in the build chamber to be tiltable to cause displacement of powder from the build sleeve through an opening in the build sleeve. 127-. (canceled)28. A powder bed fusion apparatus in which selected areas of a powder bed are solidified in a layer-by-layer manner to form a workpiece , the powder bed fusion apparatus comprising a build chamber for maintaining an inert atmosphere or (partial) vacuum , a build sleeve located within the build chamber , a build platform movable in the build sleeve , the build platform for supporting a build substrate on which the object is built and a powder bed , a powder applicator for forming powder layers of the powder bed , a radiation device for generating and steering a radiation beam across a surface of the powder bed to solidify areas of each layer , and a tilting mechanism for tilting the build substrate with respect to the build sleeve such that the powder is freed from the object , the tilting mechanism arranged for tilting the build substrate when the build substrate is in a raised position above a top of the build sleeve.29. A powder bed fusion apparatus according to comprising a controller configured to raise the build platform at the end of a build to locate the build substrate at the top of the build sleeve and for tilting the build substrate with the tilting mechanism.30. A powder bed fusion apparatus according to wherein ...

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Номер записи: 36
09-01-2020 дата публикации

PROCESSES AND SYSTEMS FOR DOUBLE-PULSE LASER MICRO SINTERING

Номер: US20200009655A1
Автор: Wu Benxin
Принадлежит:

Processes and systems that include one or more laser beam sources configured to provide laser irradiation with one or more laser pulse groups to at least a portion of powder particles on a solid surface at one or multiple locations thereof. Sintering laser pulse(s) is provided to induce coalition of at least some of the powder particles into a more continuous medium, and pressing laser pulse(s) is provided to produce pressure pulse(s) on at least a portion of the powder particles and/or the more continuous medium. Laser pulse groups may include one or more of the sintering laser pulses followed by one or more of the pressing laser pulses with a time delay between a last of the sintering laser pulse(s) and a first of the pressing laser pulse(s). 1. A laser sintering process comprising:providing powder particles on a solid surface so that at least a portion of the powder particles forms a material surface; and then or simultaneouslylaser irradiating the material surface with one or more laser pulse groups at one or multiple locations to induce coalition of at least some of the powder particles into a more continuous medium; one or more sintering laser pulses followed by one or more pressing laser pulses, wherein at least one of the sintering laser pulse(s) is different from at least one of the pressing laser pulse(s) in at least one parameter or characteristic selected from the group consisting of laser pulse duration, laser pulse energy, peak laser power within the laser pulse, laser spot size on the material surface, laser beam wavelength, the relation of laser power versus time within the laser pulse, spatial profile of laser beam intensity on the material surface, and any combination thereof; and', 'a time delay between a last one of the sintering laser pulse(s) and a first one of the pressing laser pulse(s)., 'wherein at least one of the one or more laser pulse group(s) comprises2. The laser sintering process of claim 1 , wherein the at least one laser pulse ...

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Номер записи: 37
09-01-2020 дата публикации

METHOD OF ADDITIVE MANUFACTURING OF COMPONENTS

Номер: US20200009656A1
Автор: Kamel Ahmed, Kulkarni Anand A.
Принадлежит:

A method of additive manufacturing a component. The method includes selecting powder characterization, depositing powder materials, inspecting the powder materials, selecting process and laser parameters for laser processing, laser processing the powder materials, performing layer cleanup, determining stress state and relieving, additionally inspecting the laser processed powder materials, and repeating steps until a buildup of the component is complete. 18-. (canceled)9. A method of additive manufacturing a component , the method comprising:selecting powder characterization;depositing powder materials for fabricating the component;inspecting, in-situ, the powder materials deposited to determine layer characteristics;selecting process and laser parameters for laser processing based on inspection results;laser processing the powder materials;performing layer cleanup on the laser processed powder materials;additionally inspecting, in-situ, the laser processed powder materials to determine material characteristics;inspecting via ultrasonic measurement process the laser processed powder materials to determine residual stress;upon determining residual stress is less than a threshold, repeating the above steps starting with the depositing step with additional powder materials until a buildup of the component is complete.10. The method of claim 9 , wherein the additional inspecting is via flash thermography utilizing heat powered via the preceding laser processing.11. The method of claim 9 , wherein the deposited powder layer differs in thickness from the deposited additional powder materials layer.12. The method of claim 9 , wherein inspection results identifies unacceptable characteristics claim 9 , and wherein the method further comprises repeating selecting claim 9 , laser processing claim 9 , and performing layer cleanup steps to reduce or eliminate the unacceptable characteristics before continuing on to the inspecting via ultrasonic measurement process step.13. The ...

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Номер записи: 38
09-01-2020 дата публикации

METHOD FOR MANUFACTURING METAL FOAM

Номер: US20200009658A1
Автор: Lee Jin Kyu, YOO Dong Woo
Принадлежит: LG CHEM, LTD.

The present application provides a method for manufacturing a metal foam. The present application can provide a method for manufacturing a metal foam, which is capable of forming a metal foam comprising uniformly formed pores and having excellent mechanical properties as well as the desired porosity, and a metal foam having the above characteristics. In addition, the present application can provide a method capable of forming a metal foam in which the above-mentioned physical properties are ensured, while being in the form of a thin film or sheet, within a fast process time, and such a metal foam. 1. A method for manufacturing a metal foam comprising a step of sintering a structure comprising a metal component , which comprises a conductive metal having a relative magnetic permeability of 90 or more , and an organic binder.2. The method for manufacturing a metal foam according to claim 1 , wherein the conductive metal has a conductivity at 20° C. of 8 MS/m or more.3. The method for manufacturing a metal foam according to claim 1 , wherein the conductive metal is nickel claim 1 , iron or cobalt.4. The method for manufacturing a metal foam according to claim 1 , wherein the structure comprises claim 1 , on the basis of weight claim 1 , 30% by weight or more of the conductive metal.5. The method for manufacturing a metal foam according to claim 1 , wherein the conductive metal has an average particle diameter in a range of 5 μm to 100 μm.6. The method for manufacturing a metal foam according to claim 1 , wherein the organic binder is alkyl cellulose claim 1 , polyalkylene carbonate claim 1 , polyvinyl alcohol claim 1 , polyalkylene oxide or polyvinyl acetate.7. The method for manufacturing a metal foam according to claim 1 , wherein the structure comprises 10 to 400 parts by weight of the organic binder claim 1 , relative to 100 parts by weight of the metal component.8. The method for manufacturing a metal foam according to claim 1 , wherein the structure is produced ...

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Номер записи: 39
09-01-2020 дата публикации

Method and Device for Machining a Workpiece

Номер: US20200009659A1
Автор: Flögel Rupert
Принадлежит:

In a method for machining a workpiece (), the workpiece () is secured to a carrier element () by at least one connecting element () or is produced by a generative production method. In an embedding step, the workpiece () is introduced into a casting mould surrounding the workpiece () and a curing carrier material () surrounding the workpiece () is introduced into the casting mould, such that the workpiece () is embedded and fixed in the carrier material (). In an exposure step, the carrier material () is separated from the workpiece () and the workpiece () is exposed from a side facing the carrier element (), in order, in a subsequent second machining step, for it to be possible to machine the workpiece () partially embedded in the carrier material (). The workpiece () can be produced by a generative production method on the carrier element (), wherein at least one connecting element () that joins the workpiece () to the carrier element () is produced at the same time. Arranged on the carrier element () are protruding positioning elements (), which, when the workpiece () is introduced into the casting mould (), come into engagement with matching recesses in the casting mould, in order to define a position of the carrier element () with the workpiece () secured thereto relative to the casting mould and to allow subsequent referencing of the workpiece (). 121.-. (canceled)22. A method for machining a workpiece which is fixed on a carrier element by at least one connecting element , comprising:an embedding step, in which the workpiece is inserted into a casting mold enclosing the workpiece and a curing carrier material enclosing the workpiece is introduced into the casting mold, so that the workpiece is embedded and fixed in the carrier material;an exposure step, in which the carrier element is separated from the workpiece and the workpiece is exposed from a side facing the carrier element; anda subsequent machining step, in which the workpiece partially embedded in ...

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Номер записи: 40
14-01-2021 дата публикации

ELECTROCHEMICAL CLEANING OF AN ADDITIVELY MANUFACTURED PART

Номер: US20210010150A1
Автор: STEPHANSEN Robin, Wildheim Martin
Принадлежит: Freemelt AB

A method for removing powder from a component or part produced by metal additive manufacturing systems based on powder beds. The method includes manufacturing a part by additive manufacturing, the part having at least one internal cavity with at least one external opening. The internal cavity is at least partly filled with powder, the powder in the internal cavity having grains agglomerated or connected to each other. The method further including: evacuating gas from the internal cavity; adding liquid electrolyte to the internal cavity, and using an electrochemical process for separating connected powder grains in the cavity. 1. A method comprising:manufacturing a part by additive manufacturing, said part having at least one internal cavity with at least one external opening, said at least one cavity at least partly filled with powder, said powder in the at least one cavity having grains connected to each other;evaluating gas from said at least one internal cavity;adding liquid electrolyte to said at least one internal cavity; andusing an electrochemical process for removal of connections between powder grains in said at least one cavity.2. The method according to claim 1 , further comprising removing powder from said internal cavity after removal of connections between powder grains.3. The method according to claim 1 , comprising evaluating said gas from said internal cavity by introducing said part in a vacuum chamber claim 1 , wherein gas is evacuated from the vacuum chamber.4. The method according to claim 1 , comprising adding liquid electrolyte to said internal cavity by introducing liquid electrolyte into said vacuum chamber.5. The method according to claim 1 , wherein said powder is metal powder.6. The method according to claim 1 , wherein said powder grains are connected by semi-sintering.7. The method according to claim 1 , wherein at least one of the steps in said method is repeated. This invention relates to methods for removing remaining powder within ...

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Номер записи: 41
19-01-2017 дата публикации

Material feeder of additive manufacturing apparatus, additive manufacturing apparatus, and additive manufacturing method

Номер: US20170014902A1
Автор: Hiroshi Ohno, Kaori DEURA, Masayuki Tanaka, Takahiro Terada
Принадлежит: Toshiba Corp

According to one embodiment, a material feeder includes a feeding unit. The feeding unit includes a container that is containable of a powdery material and a first wall that is provided with a plurality of first openings communicated with the container and at least partially covers a region to which the material is fed, the feeding unit feeding the material in the container from the first openings to the region to form a layer of the material.

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Номер записи: 42
19-01-2017 дата публикации

Three-dimensional fabricating system, method of manufacturing three-dimensional fabricated object, information processing apparatus, method of generating shrinkage suppression structure of three-dimensional fabricated object, and program for generating shrinkage suppression structure of three-dimensional fabricated object

Номер: US20170014903A1
Автор: Yukito SUGIURA
Принадлежит: Technology Research Association for Future Additive Manufacturing (TRAFAM)

This invention provides an information processing apparatus for fabricating a desired three-dimensional fabricated object by suppressing shrinkage of a fabricated object caused by a temperature drop in a laminated portion at a fabricating time of the three-dimensional fabricated object. This information processing apparatus includes an acquirer that acquires laminating and fabricating data of a three-dimensional fabricating model, and a data generator that generates laminating and fabricating data of a three-dimensional fabricating model added, when a width in a predetermined direction on a laminating surface of a fabricated object is equal to or larger than a threshold, with a shrinkage suppression structure model for suppressing shrinkage after laminating and fabricating, in the predetermined direction. The shrinkage suppression structure model is a plate-like structure model extending in the predetermined direction and having a length which can suppress shrinkage after laminating and fabricating.

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Номер записи: 43
19-01-2017 дата публикации

Selective solidification apparatus and methods

Номер: US20170014904A1
Автор: Ceri BROWN, Geoffrey Mcfarland
Принадлежит: RENISHAW PLC

This invention concerns a selective solidification apparatus including a build chamber, a build platform lowerable in the build chamber, a wiper for spreading powder material across the build platform to form successive powder layers of a powder bed, an energy beam unit for generating an energy beam for consolidating the powder material, a scanner for directing and focussing the energy beam onto each powder layer and a processor for controlling the scanner. The processor is arranged to control the scanner to scan the energy beam across the powder bed to consolidate powder material either side of the wiper when the wiper is moving across the powder bed and to scan the energy beam across at least one of the powder layers during two or more strokes of the wiper across the powder bed.

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Номер записи: 44
19-01-2017 дата публикации

METAL 3D PRINTER

Номер: US20170014905A1
Автор: KAWADA Shuichi, OKAZAKI Shuji
Принадлежит: SODICK CO., LTD.

A metal 3D printer includes: a housing () forming a molding chamber (B); a recoater head () reciprocating in the direction of a horizontal U axis in the molding chamber to form a powder layer of a metal; a laser irradiation device () irradiating an irradiation region in the powder layer with a laser beam to form a sintered layer; and an inert gas supply device (). The inert gas supply device includes: a first suction port (V) disposed on one () of the side walls facing each other in the direction of the U axis, which is far away from the irradiation region; a first blowout port (F) disposed on a side of the recoater head to face the first suction port; and a second blowout port (F) disposed to face the first suction port across the irradiation region. 1. A metal 3D printer adapted for laminate-molding a three-dimensional object , the metal 3D printer comprising:a housing comprising a plurality of side walls to form a molding chamber;a recoater head reciprocating between a first position and a second position in a direction of a horizontal U axis in the molding chamber to form a powder layer of a metal;a laser irradiation device irradiating an irradiation region in the powder layer with a laser beam to form a sintered layer; andan inert gas supply device circulating an inert gas through the molding chamber to remove fumes generated in the irradiation region from the molding chamber, a first suction port disposed on one of the side walls facing each other in the direction of the U axis, which is closer to the first position than the second position;', 'a first blowout port disposed on a side of the recoater head to face the first suction port; and', 'a second blowout port disposed to face the first suction port across the irradiation region., 'wherein the inert gas supply device comprises2. The metal 3D printer according to claim 1 , further comprising a controller that controls the inert gas supply device claim 1 , wherein the controller closes the first blowout port ...

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Номер записи: 45
19-01-2017 дата публикации

ADDITIVE MANUFACTURING WITH COOLANT SYSTEM

Номер: US20170014906A1
Автор: Frey Bernard, Joshi Ajey M., Krishnan Kasiraman, Kumar Ashavani, Ng Eric, Ng Hou T., Patibandla Nag B., Swaminathan Bharath
Принадлежит:

An additive manufacturing system includes a platen having a top surface to support an object being manufactured, a feed material dispenser to deliver a plurality of successive layers of feed material over the platen, an energy source positioned above the platen to fuse at least a portion of an outermost layer of feed material, and a coolant fluid dispenser to deliver a coolant fluid onto the outermost layer of feed material after at least a portion of the outermost layer has been fused. 1. An additive manufacturing system , comprising:a platen having a top surface to support an object being manufactured;a feed material dispenser to deliver a plurality of successive layers of feed material over the platen;an energy source positioned above the platen to fuse at least a portion of an outermost layer of feed material; anda coolant fluid dispenser to deliver a coolant fluid onto the outermost layer of feed material after at least a portion of the outermost layer has been fused.2. The system of claim 1 , wherein the coolant fluid dispenser includes a conduit configured to deliver coolant fluid simultaneously across a width of the platen claim 1 , and comprising an actuator coupled to the conduit to move the conduit along a length of the platen.3. The system of claim 2 , wherein the conduit comprises a plurality of spaced apart apertures extending across the width of the platen.4. The system of claim 2 , wherein the conduit comprises a contiguous slot extending across the width of the platen.5. The system of claim 2 , wherein the energy source is configured to apply heat to a region that scans at least along the length of the platen claim 2 , and the system is configured to cause the actuator to move the conduit in conjunction with motion of the region along the length of the platen.6. The system of claim 5 , wherein the energy source is configured to generate a beam that scans in both length and width directions across the outermost layer of feed material.7. The system of ...

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Номер записи: 46
19-01-2017 дата публикации

BRACE STRUCTURES FOR ADDITIVE MANUFACTURING

Номер: US20170014907A1
Автор: Frey Bernard, Joshi Ajey M., Krishnan Kasiraman, Kumar Ashavani, Ng Eric, Ng Hou T., Patibandla Nag B., Swaminathan Bharath
Принадлежит: Applied Materials, Inc.

Additive manufacturing of an object includes dispensing a plurality of successive layers of powder over a top surface of a platform, fusing an object region in each of the plurality of successive layers to form the object, and fusing a brace region in a particular layer from the plurality of layers to form a brace structure to inhibit lateral motion of the powder. The brace structure is spaced apart from the particular object region by a gap of unfused powder. 1. A method for forming an object , the method comprising:dispensing a plurality of successive layers of powder over a top surface of a platform;fusing an object region in each of the plurality of successive layers to form the object; andfusing a brace region in a particular layer from the plurality of layers to form a brace structure to inhibit lateral motion of the powder, wherein the brace region is spaced apart from the particular object region by a gap of unfused powder, and wherein the brace structure of the particular layer comprises a plurality of strands extending toward an outer perimeter of the particular layer.2. The method of claim 1 , wherein the brace region of the particular layer extends from sufficiently near the particular object region to inhibit relative motion between the object and the unfused powder.3. The method of claim 1 , wherein forming the plurality of strands comprises fusing a mesh region of the particular layer claim 1 , the mesh defining a plurality of separated cells of unfused powder in the particular layer.4. The method of claim 3 , wherein the plurality of separated cells form a checkerboard pattern claim 3 , a radial web pattern or a rectangular pattern.5. The method of claim 1 , wherein:the particular layer is a first particular layer of the plurality of successive layers, andthe method further comprises fusing a brace region in a second particular layer of the plurality of successive layers, the brace region of the second particular layer separated from a particular ...

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Номер записи: 47
19-01-2017 дата публикации

METHOD FOR MANUFACTURING ADDITIVE MANUFACTURED OBJECT, AND MIXED MATERIAL

Номер: US20170014909A1
Автор: MACHIDA Morihiro, Ohno Hiroshi, TANAKA Masayuki
Принадлежит: KABUSHIKI KAISHA TOSHIBA

A method for manufacturing an additive manufactured object according embodiments includes supplying a powdered first material capable of being melted or sintered by irradiation with energy rays; supplying a powdered second material through which the energy rays are transmitted; melting or sintering the first material by irradiation with the energy rays; and solidifying the first material after melting or solidifying the first material by sintering. 1. (canceled)2. A method for manufacturing an additive manufactured object , the method comprising:supplying a powdered first material capable of being melted or sintered by irradiation with energy rays;supplying a powdered second material having absorptivity of the energy rays lower than the first material; andmelting or sintering the first material by irradiation with the energy rays, whereinthe first material and the second material are adjacent to each other.3. The method according to claim 2 , whereinthe supplying of the first material includes supplying the first material, andthe supplying of the second material includes supplying the second material to a second region adjacent to the first region.4. The method according to claim 3 , whereinthe first material includes a plurality of different first materials,the supplying of the first material includes the plurality of different first materials to the first region.5. The method according to claim 3 , wherein the first region claim 3 , and a third region being a part of the second region and being adjacent to the first region are irradiated with the energy rays claim 3 , in the melting or sintering of the first material.6. The method according to claim 2 , wherein the second material is removed claim 2 , after solidifying the first material after melting the first material claim 2 , or after sintering the first material.7. (canceled)8. A method for manufacturing an additive manufactured object claim 2 , the method comprising:supplying a powdered first material ...

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Номер записи: 48
19-01-2017 дата публикации

SELECTIVE MATERIAL DISPENSING IN ADDITIVE MANUFACTURING

Номер: US20170014910A1
Автор: Frey Bernard, Joshi Ajey M., Krishnan Kasiraman, Kumar Ashavani, Ng Eric, Ng Hou T., Patibandla Nag B., Swaminathan Bharath
Принадлежит: Applied Materials, Inc.

Additive manufacturing includes successively forming a plurality of layers on a support. Depositing a layer from the plurality of layers includes dispensing first particles, selectively dispensing second particles in selected regions corresponding to a surface of the object, and fusing at least a portion of the layer. The layer has the first particles throughout and the second particles in the selected regions. Alternatively or in addition, forming the plurality of layers includes depositing multiple groups of layers. Depositing a group of layers includes, for each layer in the group of layers dispensing a feed material to provide the layer, and after dispensing the feed material and before dispensing a subsequent layer fusing a selected portion of the layer. After all layers in the group of layers are dispensed, a volume of the group of layers that extends through all the layers in the group of layers is fused. 1. A method of additive manufacturing of an object , comprising: dispensing first particles on a support or an underlying layer, the first particles having a first mean diameter;', 'selectively dispensing second particles on the support or the underlying layer in selected regions corresponding to an exterior surface of the object, such that the layer has the first particles throughout and the second particles in the selected regions, the second particles having a second mean diameter at least two times smaller than the first mean diameter; and', 'fusing at least a portion of the layer., 'successively forming a plurality of layers on a support, wherein depositing a layer from the plurality of layers comprises'}2. The method of claim 1 , comprising dispensing the second particles after dispensing the first particles so that the second particles infiltrate into a layer of first particles.3. The method of claim 2 , wherein dispensing the first particles comprises pushing the first particles from a reservoir across the support or underlying layer.4. The method of ...

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Номер записи: 49
19-01-2017 дата публикации

FUSING OF MULTIPLE LAYERS IN ADDITIVE MANUFACTURING

Номер: US20170014911A1
Автор: Frey Bernard, Joshi Ajey M., Krishnan Kasiraman, Kumar Ashavani, Ng Eric, Ng Hou T., Patibandla Nag B., Swaminathan Bharath
Принадлежит:

Additive manufacturing includes successively forming a plurality of layers on a support. Depositing a layer from the plurality of layers includes dispensing first particles, selectively dispensing second particles in selected regions corresponding to a surface of the object, and fusing at least a portion of the layer. The layer has the first particles throughout and the second particles in the selected regions. Alternatively or in addition, forming the plurality of layers includes depositing multiple groups of layers. Depositing a group of layers includes, for each layer in the group of layers dispensing a feed material to provide the layer, and after dispensing the feed material and before dispensing a subsequent layer fusing a selected portion of the layer. After all layers in the group of layers are dispensed, a volume of the group of layers that extends through all the layers in the group of layers is fused. 1. A method of additive manufacturing of an object , comprising: for each layer in the group of layers, dispensing a feed material on a support or an underlying layer to provide the layer;', 'for each layer in the group of layers, after dispensing the feed material to provide the layer and before dispensing a subsequent layer, fusing a selected portion of the layer corresponding to the object; and', 'after all layers in the group of layers are dispensed, fusing a volume of the group of layers that extends through all the layers in the group of layers., 'successively forming a plurality of a layers on a support, wherein forming the plurality of layers includes depositing multiple groups of layers, each group of layers including multiple layers, and depositing a group of layers from the plurality of layers includes'}2. The method of claim 1 , wherein the portion of the layer corresponds to an exterior surface of the object.3. The method of claim 1 , wherein regions of at least two adjacent layers in the group of layers have perimeters that are laterally offset ...

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Номер записи: 50
19-01-2017 дата публикации

Aluminum alloy products, and methods of making the same

Номер: US20170014937A1
Автор: Cagatay Yanar, David W. Heard, Deborah M. Wilhelmy, Gen SATOH, John Siemon, Lynnette M. Karabin, Raymond J. Kilmer
Принадлежит: Arconic Inc

The present disclosure relates to new metal powders for use in additive manufacturing, and aluminum alloy products made from such metal powders via additive manufacturing. The composition(s) and/or physical properties of the metal powders may be tailored. In turn, additive manufacturing may be used to produce a tailored aluminum alloy product.

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Номер записи: 51
15-01-2015 дата публикации

METHOD OF SPEEDILY FORMING DENTAL IMPLANT AUXILIARY DEVICES

Номер: US20150017051A1
Автор: Su Kou-Tsair, Su Yu-Jung
Принадлежит:

A method of speedily forming dental implant auxiliary devices comprises a tooth mold reproducing step, a processing drawing setting step, and a formation step. In the tooth mold producing step, a buccal mold is made according to a shape of an oral cavity; in the processing drawing setting step, an implant marked object is designed in respect to the buccal mold for setting a three-dimensional processing drawing of a dental implant auxiliary device; and in the formation step, the drawing is input to a laser sintering and forming system, so that the system directly and quickly forms and shapes the implant fixing device according to the three-dimensional drawing. The method reduces the manufacture time effectively and increases the manufacture precision, which allows the metal implant to be correctly implanted in surgery for enhancing a success rate of the surgery and reducing manufacture costs. 1. A method of speedily forming dental implant auxiliary devices comprising:a tooth mold reproducing step for making a buccal mold by copying a shape of an oral cavity of a patient;a processing drawing setting step for designing a layout of an implant marked object in respect to said buccal mold and building a three-dimensional processing drawing of a dental implant auxiliary device provided with a positioning through hole according to said layout; anda formation step for forming and shaping said dental implant auxiliary device by using a laser sintering and forming system, wherein said laser sintering and forming system includes a platform, a laser sintering device disposed on said platform, and a control unit disposed to control an operation of said laser sintering device, whereby said control unit converts said three-dimensional processing drawing into a processing value and drives said laser sintering device to form and shape said dental implant auxiliary device after said three-dimensional processing drawing is input to said laser sintering and forming system.2. The method ...

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Номер записи: 52
15-01-2015 дата публикации

CONTROL IN GENERATIVE PRODUCTION

Номер: US20150017054A1
Автор: Bamberg Joachim, HESS Thomas, Jakimov Andreas, Schlick Georg
Принадлежит:

Disclosed is a method for generatively producing components by layer-by-layer building from a powder material by selective material bonding of powder particles by a high-energy beam. An eddy current testing is carried out concurrently with the material bonding. Also disclosed is an apparatus which is suitable for carrying out the method. 1. A method for generatively producing components by layer-by-layer building from a powder material by selective material bonding of powder particles by a high-energy beam , wherein an eddy current testing is carried out concurrently with the material bonding.2. The method of claim 1 , wherein the material bonding takes place by at least one of welding and sintering.3. The method of claim 1 , wherein the high-energy beam is a laser beam or an electron beam.4. The method of claim 1 , wherein the high-energy beam is passed in a desired pattern over a surface having thereon powder particles to be subjected to material bonding.5. The method of claim 1 , wherein an eddy current measuring arrangement with at least one coil arrangement comprising at least one transmitter coil and at least one integrated or separate receiver coil is used for the eddy current testing.6. The method of claim 5 , wherein the coil arrangement comprises a differential or multi-differential coil.7. The method of claim 5 , wherein in the eddy current testing with the high-energy beam claim 5 , the coil arrangement is passed over the surface of a powder layer.8. The method of claim 5 , wherein in the eddy current testing claim 5 , the coil arrangement surrounds the high-energy beam.9. The method of claim 1 , wherein one or more measured values of the eddy current testing are used for controlling the layer-by-layer building.10. The method of claim 9 , wherein one or more measured values of the eddy current testing are used for controlling the material bonding.11. The method of claim 1 , wherein one or more measured values of the eddy current testing are used for ...

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Номер записи: 53
18-01-2018 дата публикации

Three-Dimensional Shaping Device

Номер: US20180015541A1
Автор: Amaya Kouichi, Kato Toshihiko, Matsubara Hideto, Midorikawa Tetsushi, Yoshida Mitsuyoshi
Принадлежит:

In a three-dimensional shaping device, a region of an elevatable/lowerable table for forming a powder layer and a region of a powder supply device are divided by a shield plate, an inert gas injection port is provided in the former region, the shield plate can be freely opened or closed so that a powder spraying squeegee traveling on the table is passed through, or a pipe which supplies powder from the powder supply device to the powder spraying squeegee which has traveled to the side of the shield plate penetrates through the shield plate, or a part of the shield plate is the powder supply port for the powder spraying squeegee which has traveled to the side of the shield plate and the pipe protrudes at a lower part and a sintering device applies a laser beam via a transparent region in a ceiling of a chamber. 1. A three-dimensional shaping device , comprising:at least one chamber,a region of an elevatable/lowerable table for forming a powder layer within the at least one chamber and a vicinity thereof,a region of a powder supply device and a vicinity thereof,a shield plate which divides the region of the elevatable/lowerable table from the region of the powder supply device,an inert gas injection port provided in the region of the elevatable/lowerable table,a powder spraying squeegee,the shield plate is constructed to be freely opened or closed so that the powder spraying squeegee traveling across the table is adapted to pass through the shield plate,a sintering device which applies a laser beam to a shaping region of a three-dimensional shaped article on the table via a transparent region in a ceiling of the at least one chamber,a horizontal-direction drive mechanism for the powder spraying squeegee, and a) a region of the horizontal-direction drive mechanism for the powder spraying squeegee and a vicinity thereof and', 'b) the region of the table and the vicinity thereof., 'the shield plate divides2. A three-dimensional shaping device , comprising:at least one ...

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Номер записи: 54
18-01-2018 дата публикации

LAMINATION MOLDING APPARATUS

Номер: US20180015542A1
Автор: MURANAKA Katsutaka
Принадлежит: SODICK CO., LTD.

A fume collector can be operated continuously for a long time, and an influence on a three-dimensional article is minimized. 1. A lamination molding apparatus comprising:a chamber that is closed;a laser radiation apparatus configured to radiate a laser beam to a predetermined irradiation region on a powder material layer formed by uniformly spreading a powder material in the chamber and form a sintered layer; andan inert gas supply/discharge apparatus configured to supply an inert gas into the chamber such that the chamber is always filled with the inert gas to a predetermined concentration or more and discharge fumes to the outside of the chamber, an inert gas supply apparatus configured to supply the inert gas into the chamber; and', 'a fume collector including a charging section having a charging electrode configured to positively or negatively charge the fumes, a charging electrode cleaner configured to remove the fumes adhered to the charging electrode, and a dust collecting section configured to collect the charged fumes,, 'wherein the inert gas supply/discharge apparatus includeswherein the charging electrode cleaner removes the fumes when formation of the sintered layer is not being performed by the laser radiation apparatus in operation.2. The lamination molding apparatus according to claim 1 , further comprising a control device configured to output a cleaning start signal at a predetermined timing when a radiation process of radiating the laser beam to form the sintered layer is not being performed in operation claim 1 ,wherein the fume collector starts cleaning of the charging electrode using the charging electrode cleaner when the cleaning start signal is input and terminates the cleaning until the next radiation process starts.3. The lamination molding apparatus according to claim 1 , wherein the charging electrode cleaner comprises a nozzle configured to eject the inert gas to the charging electrode.4. The lamination molding apparatus according to ...

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Номер записи: 55
21-01-2016 дата публикации

SYSTEMS AND METHODS FOR FABRICATING JOINT MEMBERS

Номер: US20160016229A1
Автор: "OBRIEN Matthew M.", BALZER William Bradley, Czinger Kevin R., OMOHUNDRO Zachary Meyer, PENMETSA Praveen Varma
Принадлежит:

A method for fabricating a joint designed to connect tubes for a space frame, where a space frame may be a vehicle chassis, is provided. The method may generate joints with variable geometry and fine features which may reduce production costs, reduce production time, and generate joints configured for highly specific applications. The joint may include centering features which may create a space between a surface of the tube and a surface of the joint through which adhesive may flow.

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Номер записи: 56
18-01-2018 дата публикации

Three-dimensional laminating and shaping apparatus, control method of three-dimensional laminating and shaping apparatus, and control program of three-dimensional laminating and shaping apparatus

Номер: US20180015666A1
Автор: Kazuhiro Honda
Принадлежит: Technology Research Association for Future Additive Manufacturing (TRAFAM)

In a three-dimensional laminating and shaping apparatus, a material is quantitatively spread without clogging a supply port with the material. The three-dimensional laminating and shaping apparatus includes a material spreader that spreads a material of a three-dimensional laminated and shaped object on a spread surface, and includes at least one tapered portion in which a diameter decreases from an upstream side to a downstream side. The three-dimensional laminating and shaping apparatus also includes at least one vibration ball that is arranged in the tapered portion of the material spreader and vibrates, and a vibration controller that controls vibration of the vibration ball.

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Номер записи: 57
18-01-2018 дата публикации

Porous structure and methods of making same

Номер: US20180015675A1
Автор: Ryan Lloyd Landon
Принадлежит: Smith and Nephew Inc

The present disclosure allows for more controlled modification of the input data to a Rapid Manufacturing Technologies (RMT) machinery to compensate for systematic error of the manufacturing process, such as directional build discrepancies, by performing the opposite effect to the input data. The modification is achieved with minimal unwanted distortions introduced to other portions of the structure to be built by decoupling the global scaling effects on the whole structure from the desired local effects on certain portions.

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Номер записи: 58
17-01-2019 дата публикации

METHOD AND MACHINE FOR MANUFACTURING GREEN PIECES MADE OF CERAMIC AND/OR METALLIC MATERIAL BY THE TECHNIQUE OF ADDITIVE MANUFACTURING

Номер: US20190015899A1
Автор: CHAPUT Christophe, GAIGNON Richard
Принадлежит:

In a method of manufacturing, before making the first layer: the working tray is covered with a support sheet able to be biased against it, forming a rigid and fixed surface for receiving the successive layers, which is able to hold thereon the successive layers as formed; and the support sheet is biased against the working tray; the green piece is formed by the technique of additive manufacturing; and when the green piece is thus formed, the biasing is suppressed in order to detach, from the tray, the support sheet on which the green piece is located with the portion of the photocurable composition which has not been cured; the non-cured photocurable composition portion is removed; and the green piece is unhooked from the support sheet. 125-. (canceled)26. A method for manufacturing , by the technique of additive manufacturing , a green piece made of at least one material selected from the ceramic materials and the metallic materials , method according to which layers of a photocurable composition comprising the at least one material in a powdered state and an organic part comprising at least one among a photocurable monomer and a photocurable oligomer and at least one photoinitiator are successively allowed to cure by irradiation according to a pattern defined for each layer , the first layer being formed on a working tray , and each other layer being formed and then cured on the preceding layer , wherein: the working tray is covered with a support sheet able to be biased against the working tray, forming a rigid and fixed surface for receiving the successive layers, the rigid and fixed surface being able to hold thereon the successive layers as formed; and', 'the support sheet (is biased against the working tray;, 'before making the first layerthe green piece is formed by the technique of additive manufacturing; and{'b': '2', 'i': 'a', 'when the green piece is formed, the biasing is suppressed in order to detach, from the tray, the support sheet on which the ...

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Номер записи: 59
17-01-2019 дата публикации

METHOD FOR CHECKING A COMPONENT TO BE PRODUCED IN AN ADDITIVE MANNER, AND DEVICE

Номер: US20190015901A1
Автор: Haberland Christoph, Jungbluth Matthias, Kreutzer Andreas, Lammers Heiko, Lorenz Thomas, Regener Martin, SPERLICH KATHRIN, Tomuschat Danny
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A method for checking a component to be produced in an additive manner, having the steps of mechanically exciting at least one additively constructed layer of the component during the additive production of the component, measuring a mechanical response signal of the component, and displaying a warning and/or interrupting the additive production of the component if the mechanical response signal lies outside of a specified tolerance range. A device for the additive production of a component, includes a device for mechanically exciting the at least one additively constructed layer of the component, a measuring unit for measuring the mechanical response signal of the component, and a control unit. The control unit is designed to display the warning and/or interrupt the additive production if the mechanical response signal lies outside of a specified tolerance range. 114.-. (canceled)15. A method for testing a component to be additively produced , comprising:mechanically exciting at least one additively constructed layer of the component together with a component substrate during an additive production of the component on the component substrate,measuring a mechanical response signal of the component wherein a characteristic frequency spectrum of the component is used for the mechanical excitation and the measurement of the mechanical response signal, anddisplaying a warning and/or carrying out a termination of the additive production of the component if the mechanical response signal lies outside a predetermined tolerance range,wherein the mechanical response signal is compared to a simulated or computed value for the display of the warning and/or the carrying out of the termination, andwherein the mechanical response signal is compared to a mechanical response signal of at least one previously additively constructed layer for the display of the warning and/or the carrying out of the termination.16. The method as claimed in claim 15 ,wherein the mechanical excitation ...

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Номер записи: 60
17-01-2019 дата публикации

ADDITIVELY MANUFACTURED ARTICLE INCLUDING ELECTRICALLY REMOVABLE SUPPORTS

Номер: US20190015923A1
Автор: "ONeill Christopher F.", Boyer Jesse R.
Принадлежит:

An additively manufactured element includes a support structure connected to an article body. The connectors connecting the support structure to the article body are fused supports. Also disclosed is a method for removing the support structure from the article body by passing an electrical current through the fused supports, thereby breaking the fused supports. 1. An additively manufactured element comprising:a support structure; andan article body connected to the support structure via a plurality of fused supports.2. The additively manufactured element of claim 1 , wherein the plurality of fused supports form a castellated connection to the support structure.3. The additively manufactured element of claim 1 , wherein each of said fused supports has a first cross sectional area at a connection to the component body and a second cross sectional area at a connection to the support structure claim 1 , and wherein the second cross sectional area is larger than the first cross sectional area.4. The additively manufactured element of claim 1 , wherein each of said fused supports is under a spring tension.5. The additively manufactured element of claim 1 , wherein the article body claim 1 , support structure claim 1 , and fuse element are comprised of an electrically conductive material.6. The additively manufactured element of claim 5 , wherein the component body claim 5 , support structure claim 5 , and fused supports comprise a metal material.7. The additively manufactured claim element of claim 5 , wherein the fused supports have a higher resistivity than the component body.8. The additively manufactured element of claim 7 , wherein each of the fused supports in the plurality of fused supports has a higher resistivity than the support structure.9. The additively manufactured element of claim 5 , wherein at least one of the fused supports in the plurality of fused supports further comprise an additional material claim 5 , relative to the support structure and the ...

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Номер записи: 61
17-01-2019 дата публикации

METHOD FOR ADDITIVELY MANUFACTURING COMPONENT AND COMPONENT MADE THEREFROM

Номер: US20190016053A1
Автор: Adcock Thomas Charles, Cheverton Mark Allen, DEAL Andrew David, Deaton John Broddus, Graham Michael Evans, JONES Marshall Gordon, Singh Prabhjot
Принадлежит:

A method that includes additively manufacturing with an additive manufacturing (AM) system a sub-component that has a locator element. Using a control system of the AM system for positioning a first location of the locator element. Selectively placing a portion of another sub-component adjacent to the locator element, based on the positioning. Then attaching the second sub-component to the first sub-component in a region, wherein the region is based on the positioning knowledge from the control system so as to make a component. A component that comprises a first sub-component that has an AM locator element; and a second sub-component attached to the first sub-component, wherein the locator element is attached to the second sub-component within the same additive manufacturing build chamber as the first sub-component. 122-. (canceled)23. A component comprising:a first sub-component, wherein the first sub-component has an additively manufactured locator element: anda second sub-component attached to the first sub-component, wherein the additively manufactured locator element is attached to the second sub-component within the same additive manufacturing build chamber as the first sub-component.24. The component of claim 23 , wherein at least one of the first and second sub-components has at least one substantially downward facing surface.25. The component of claim 24 , wherein the at least one substantially downward facing surface comprises a portion of one of: a tube claim 24 , an arch claim 24 , a sculpted surface claim 24 , and an overhang.26. The component of claim 23 , the first sub-component comprises a support element and the second sub-component comprises a bearing surface configured to bear on the support element.27. The component of claim 26 , the support element and the bearing surface define a connection region claim 26 , wherein the connection region is thermally welded.28. The component of claim 27 , wherein the connection region is thermally welded with a ...

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Номер записи: 62
19-01-2017 дата публикации

OPTICAL MANUFACTURING PROCESS SENSING AND STATUS INDICATION SYSTEM

Номер: US20170016781A1
Автор: Castro Alberto, Cola Mark J., Dave Vivek R., Madigan Bruce, Piltch Martin S.
Принадлежит:

An optical manufacturing process sensing and status indication system is taught that is able to utilize optical emissions from a manufacturing process to infer the state of the process. In one case, it is able to use these optical emissions to distinguish thermal phenomena on two timescales and to perform feature extraction and classification so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process. In other case, it is able to utilize these optical emissions to derive corresponding spectra and identify features within those spectra so that nominal process conditions may be uniquely distinguished from off-nominal process conditions at a given instant in time or over a sequential series of instants in time occurring over the duration of the manufacturing process. 1. A manufacturing process sensing and status indication system comprising:(a) one or more optical sensors configured to measure the optical emissions from the manufacturing process over a range of wavelengths from 200 nanometers to 1000 nanometers, and produce time-domain optical data;(b) one or more thermal sensors configured to measure thermal phenomena at two different characteristic timescales, a first timescale associated with the application of heat into the manufacturing process by an external heat source and a second timescale associated with the material response to the application of heat within the manufacturing process by the external heat source, and produce time-domain thermal data;(c) an analysis system configured to provide(c1) a first feature extraction process that extracts, from the time domain optical and thermal data, features that are related to the heating rate, cooling rate and peak temperature of the thermal cycles associated with the application of heat into the manufacturing process by an external heat ...

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Номер записи: 63
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: 64
16-01-2020 дата публикации

SPATIAL POROSITY AND COMPOSITION CONTROL IN ADDITIVE MANUFACTURING

Номер: US20200016657A1
Автор: Baker Stuart P., Feldmann Martin C., Gibbs Jonathan S., Hart Anastasios John, Penny Ryan Wade
Принадлежит:

Disclosed are systems, devices, and methods for additive manufacturing that allow for control of composition and/or porosity of components being manufactured. More particularly, in exemplary embodiments, a secondary material can be used in conjunction with a primary feedstock material in a spatially controlled manner during an additive manufacturing process to control a composition of materials and/or porosity of a manufactured component. Systems, devices, and methods for additive manufacturing are also disclosed that allow for control of a pressure of an atmosphere surrounding a build surface during an additive manufacturing process. More particularly, a pressure of an atmosphere surrounding a build surface can be raised to a pressure greater than standard atmospheric pressure. Various features of the exemplary embodiments of the systems, devices, and methods disclosed can be used together to further control for composition and/or porosity and quality of a manufactured part. 1. A system for manufacturing a three-dimensional object , comprising:a deposition element configured to deposit a primary feedstock material;a spatial control element configured to deposit a secondary material onto at least a portion of a primary feedstock material deposited by the deposition element or onto a build surface; and locally heat a secondary material that is deposited onto at least a portion of a primary feedstock material or onto a build surface, the secondary material having been deposited by the spatial control element and the primary feedstock material having been deposited by the deposition element, such that upon heating of the secondary material, the secondary material at least one of dissolves, melts and/or releases a gaseous product, the energy source being a spatially-controlled energy source; or', 'locally heat a primary feedstock material to become molten while at least a portion of the secondary material remains solid to form a composite of at least two solid phases ...

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Номер записи: 65
17-01-2019 дата публикации

SINTERABLE METAL PASTE FOR USE IN ADDITIVE MANUFACTURING

Номер: US20190016904A1
Автор: Connor Stephen T., Groves James R., Sorom Theodore C.
Принадлежит: NanoCore Technologies

A material and method are disclosed such that the material can be used to form functional metal pieces by producing an easily sintered layered body of dried metal paste. On a microstructural level, when dried, the metal paste creates a matrix of porous metal scaffold particles with infiltrant metal particles, which are positioned interstitially in the porous scaffold's interstitial voids. For this material to realize mechanical and processing benefits, the infiltrant particles are chosen such that they pack in the porous scaffold piece in a manner which does not significantly degrade the packing of the scaffold particles and so that they can also infiltrate the porous scaffold on heating. The method of using this paste provides a technique with high rate and resolution of metal part production due to a hybrid deposition/removal process. 1. A metal paste for use in the layerwise growth of metal structures , comprising:a vehicle comprising at least one solvent and at least one polymeric binder;metal scaffold particles comprising a population of large particles comprising iron at a concentration of about 70% to 100% by weight with a first D50 and a population of small particles comprising iron at a concentration of about 70% to 100% by weight with a second D50 that is smaller than the first D50; andinfiltrant particles with a D50 particle size such that the infiltrant particles primarily position in interstitial spaces between the metal scaffold particles.21. The metal paste of , wherein the population of large particles comprising iron has a lower concentration of iron than the population of small particles comprising iron.3. The metal paste of claim 1 , wherein the population of small particles comprises iron at a concentration of about 90% to 100% by weight.4. The metal paste of claim 1 , wherein the infiltrant particles comprise nickel at a concentration of 95% by weight or more.5. The metal paste of claim 1 , wherein the infiltrant particles have a D50 particle ...

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Номер записи: 66
16-01-2020 дата публикации

ADDITIVE-MANUFACTURING SYSTEMS AND METHODS

Номер: US20200016831A1
Автор: Slattery Kevin T.
Принадлежит: The Boeing Company

An additive manufacturing system and method includes a powder bed, an additive manufacturing head that is configured to emit a first energy into the powder bed to form at least one layer of a component, a part exposing mechanism that is configured to operate so that the component is in a first position at a first time within the powder bed, and a second position at a second time in which a portion of the component is exposed outside of the powder bed, and a surface smoothing head that is configured to emit a second energy onto the portion of the component in the second position to smooth the portion of the component. 1. An additive manufacturing system comprising:a powder bed;an additive manufacturing head that is configured to emit a first energy into the powder bed to form at least one layer of a component;a part exposing mechanism that is configured to operate so that the component is in a first position at a first time within the powder bed, and a second position at a second time in which a portion of the component is exposed outside of the powder bed; anda surface smoothing head that is configured to emit a second energy onto the portion of the component in the second position to smooth the portion of the component.2. The additive manufacturing system of claim 1 , further comprising a container defining a forming chamber.3. The additive manufacturing system of claim 2 , wherein the part exposing mechanism is on or within the container.4. The additive manufacturing system of claim 1 , wherein the additive manufacturing head is one of fixed in position claim 1 , or moveable.5. The additive manufacturing system of claim 1 , wherein the additive manufacturing head is configured to emit the first energy as one or more laser beams.6. The additive manufacturing system of claim 1 , wherein the surface smoothing head is one of fixed in position or moveable.7. The additive manufacturing system of claim 1 , wherein the surface smoothing head is configured to emit the ...

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Номер записи: 67
28-01-2016 дата публикации

ADDITIVE MANUFACTURING BAFFLES, COVERS, AND DIES

Номер: US20160023275A1
Автор: Donnell Brandon S., Propheter-Hinckley Tracy A.
Принадлежит:

A method includes (a) depositing a layer of a powder material on a work stage, the layer having a thickness, (b) solidifying a portion of the layer based upon data that defines an insert with a body that is shaped to fit into a cavity in a gas turbine engine component, and (c) lowering the work stage by the thickness. Steps (a)-(c) can then be repeated until the insert is complete. The insert can then be removed from the work stage. An insert formed by the above process is also disclosed. 1. A method comprising:(a) depositing a layer of a powder material on a work stage, the layer having a thickness;(b) solidifying a portion of the layer based upon data that defines an insert with a body that is shaped to fit into a cavity in a gas turbine engine component;(c) lowering the work stage by the thickness;(d) repeating steps (a)-(c) until the insert is complete; and(g) removing the insert from the work stage.2. The method of claim 1 , wherein holes are created in the body of the insert while solidifying portions of the layer of the powder material.3. The method of claim 2 , wherein there is a thickened wall portion surrounding the holes in the body of the insert.4. The method of claim 1 , wherein holes are tooled into the body of the insert after the insert has been removed from the work stage.5. The method of claim 4 , wherein there is a thickened wall portion surrounding the holes in the body of the insert.6. The method of claim 1 , wherein localized protrusions are created in the body of the insert while solidifying portions of the layer of powder material.7. The method of claim 1 , wherein localized divots are created in the body of the insert while solidifying portions of the layer of powder material.8. The method of claim 1 , wherein the powder material is solidified using a laser.9. The method of claim 1 , wherein the powder material is a nickel alloy.10. The method of claim 1 , wherein the powder material is deposited on the work stage by rolling it onto the work ...

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Номер записи: 68
26-01-2017 дата публикации

APPARATUSES, SYSTEMS AND METHODS FOR THREE-DIMENSIONAL PRINTING

Номер: US20170021420A1
Автор: Buller Benyamin, Milshtein Erel, Seelinger Sherman
Принадлежит:

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. 1. A system for forming a three-dimensional object , comprising: (i) a reservoir comprising the powder material,', '(ii) a powder exit opening through which the powder material exits the reservoir to form the at least the first portion of the powder bed,', '(iii) at least one roller operatively coupled to both the powder exit opening and the reservoir, which at least one roller facilitates flow of the powder material from the reservoir through the power exit opening to form the at least the first portion of the powder bed, wherein a complete revolution of the at least one roller facilitates a continuity of the flow of the powder material to the material bed, and', '(iv) an obstruction that obstructs the flow of the powder material to the powder bed, which obstruction is adjacent to the at least one roller; and, 'a powder dispenser that dispenses a powder material to form at least a first portion of a powder bed adjacent to the powder dispenser, which powder dispenser is laterally translatable with respect to the powder bed and comprisesan energy source that provides an energy beam that is directed towards the powder bed, wherein the energy beam transforms a second portion of the powder bed to form a transformed material as part of the three-dimensional object.2. The system of claim 1 , wherein the at least one roller comprises two or more rollers.3. The system of claim 1 , wherein the powder material comprises individual particles formed of at least one member selected from the group consisting of an elemental metal claim 1 , metal ...

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Номер записи: 69
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: 70
24-01-2019 дата публикации

ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL ARTICLES

Номер: US20190022751A1
Автор: Ackelid Ulf, Ljungblad Ulric
Принадлежит:

The present invention relates to a method for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article, the method comprising the step of heating a first portion of a support surface while depositing a layer of powder material on a second portion of the support surface. 1. A computer program product comprising at least one non-transitory computer-readable storage medium having computer-readable program code portions embodied therein , the computer-readable program code portions comprising at least one executable portion configured for:depositing, on top of a support surface, at least one portion of a new layer of powder material with a powder distributor, the powder distributor having a first side and a second side opposing the first side, the first side oriented in a direction of movement of the powder distributor during the depositing; andheating, via an energy beam and without fusing, said at least one portion of said new layer of powder material, said heating without fusing occurs while simultaneously depositing said at least one portion of said new layer of powder material;', 'said heating without fusing of said at least one portion of said new layer of powder material occurs at least in at least one area located adjacent and external to the second side of the powder distributor; and', 'said energy beam for heating without fusing is the same energy beam for fusing said powder material for forming said three-dimensional article., 'wherein2. The computer program product according to claim 1 , wherein said heating claim 1 , via the energy beam and without fusing claim 1 , additionally heats a support surface under said at least one portion of said new layer of powder material claim 1 , wherein said support surface is a previously deposited layer of powder material claim 1 , the previously deposited layer of powder material having been previously at least partially ...

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Номер записи: 71
24-01-2019 дата публикации

Method for producing a component, and device

Номер: US20190022753A1
Автор: Bernd Burbaum, Torsten Neddemeyer
Принадлежит: SIEMENS AG

A method for producing a component for a turbomachine, having the additive build-up of the component by an additive production method from a base material for the component and the introduction of material fibers into a construction for the component during the additive build-up in such a way that the material fibers are oriented in a circumferential direction of the component around a component axis and in such a way that a fiber composite material is produced, including the material fibers and a base material that is solidified by the additive build-up. A corresponding component is produced by the method and a corresponding device is used for producing the component.

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Номер записи: 72
24-01-2019 дата публикации

METHOD OF MANUFACTURING A THREE-DIMENSIONAL OBJECT AND INK FOR MANUFACTURING A THREE-DIMENSIONAL OBJECT

Номер: US20190022756A1
Автор: Ohnishi Masaru
Принадлежит: MIMAKI ENGINEERING CO., LTD.

Provided are a method of manufacturing a three-dimensional object and an ink for manufacturing a three-dimensional object, which are capable of suppressing the scattering of powder when a three-dimensional object is manufactured by laser sintering. The method of manufacturing a three-dimensional object includes: a building material layer forming step of forming a building material layer on a working surface, and the building material layer including a building material in powdered form, which is a raw material for a three-dimensional object, and a solvent for dispersing the building material; a sintering step of sintering the building material included in a building part of the building material layer corresponding to the three-dimensional object; and a removal step of removing an unsintered building material and the solvent from the building material layer such that a sintered building material is left on the working surface. 1. A method of manufacturing a three-dimensional object , comprising:a building material layer forming step of forming a building material layer on a working surface, wherein the building material layer including: a building material in a powdered form which is a raw material for a three-dimensional object and is sintered when irradiated with a laser light, and a solvent for dispersing the building material;a sintering step of irradiating a building part of the building material layer corresponding to the three-dimensional object with the laser light to sinter the building material; anda removal step of removing an unsintered building material and the solvent from the building material layer such that a sintered building material is left on the working surface.2. The method of manufacturing a three-dimensional object according to claim 1 , wherein the building material layer forming step comprising:ejecting an ink containing the building material and the solvent onto the working surface by an inkjet printing to form an ink layer; andremoving a ...

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Номер записи: 73
24-01-2019 дата публикации

METHODS FOR PREPARING A HYBRID ARTICLE

Номер: US20190022760A1
Автор: COSKUN Kemel Mehmet, HULLENDER Robert Edward, Onder Onur, THOMPSON Christopher Edward, TORUN Kerem
Принадлежит:

Methods for preparing a hybrid article include disposing an additive structure comprising a plurality of layers on a build surface of a part, the build surface being defined based on x, and y coordinates, and the additive structure being defined by a three dimensional model defined by a series of planes based on x, y and z coordinates that define a plurality of layers, one layer comprising an interface surface having a contour being defined by x, and y coordinates. When the build surface and the interface surface are both oriented in space according to corresponding x, y and z coordinates, a cladding system is directed to deposit each of the sequential layers of the additive structure according to toolpaths that correspond with each of the plurality of layers of the three dimensional model. 1. A method for forming a hybrid article , comprising: [ (i) selecting a build surface of the part for receiving the additive structure;', '(ii) capturing a two dimensional image of the build surface;', '(iii) processing data for the captured two dimensional image of the build surface to provide coordinates in three dimensions, x, y and z, and rendering a build surface contour;, '(a) providing a part and preparing the part for receiving the additive structure, comprising steps including, (i) selecting a model for the additive structure, the selected model defining the additive structure in at least three dimensions, and including a selected interface surface;', '(ii) importing the x, y and z coordinates of the build surface contour into the working environment of the model, wherein the imported coordinates correspond with x, y and z coordinates for the interface surface defined by the model', '(iii) initially aligning the interface surface of the additive structure model with the build surface contour of the part, wherein each of the interface surface of the additive structure model and the build surface contour of the part has a geometry;', '(iv) finally aligning the interface ...

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Номер записи: 74
24-01-2019 дата публикации

APPARATUS FOR MANUFACTURING THREE-DIMENSIONAL OBJECTS

Номер: US20190022790A1
Автор: HOFMANN ALEXANDER, STAMMBERGER Jens
Принадлежит: CL SCHUTZRECHTSVERWALTUNGS GMBH

Apparatus () for additively manufacturing of three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam, wherein a direct measuring unit () is provided for determining a position and/or a travel distance of at least one moveable component () of the apparatus (). 1123451. Apparatus () for additively manufacturing of three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam , characterized in that a direct measuring unit () is provided for determining a position and/or a travel distance of at least one moveable component () of the apparatus ().2745. Apparatus according to claim 1 , characterized by a coupling means with at least one coupling means () configured to couple the direct measuring unit () with the component ().371051112. Apparatus according to claim 2 , characterized in that the coupling means () comprises a redirection means () configured to redirect a movement of the movable component () directed along a first movement direction and/or a first axis () into a movement of the direct measuring means along a second movement direction and/or a second axis ().47. Apparatus according to claim 2 , characterized in that at least one coupling means () is a pulling means and/or a pushing means.57. Apparatus according to claim 2 , characterized in that at least one coupling means () is built of or comprises flexible material and/or low elongation material.6715. Apparatus according to claim 2 , characterized in that at least one coupling means () is or comprises a rope and/or a wire and/or a chain and/or a rod and/or a spring and/or a pneumatic element () and/or a hydraulic element.7107. Apparatus according to claim 3 , characterized in that the redirection means () is built as a redirection roll guiding and/or ...

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Номер записи: 75
24-01-2019 дата публикации

APPARATUS FOR ADDITIVELY MANUFACTURING OF THREE-DIMENSIONAL OBJECTS

Номер: US20190022795A1
Автор: BAUER MAXIMILIAN, HERTEL Kai
Принадлежит: CONCEPT LASER GMBH

Apparatus () for additively manufacturing of three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam (), wherein the apparatus () comprises a scanning unit () configured to scan the energy beam () over at least a part of a build plane (), a focusing unit () is provided that is configured to control a focal position () of the energy beam () via a positioning of at least one optical component of the focusing unit () and/or a positioning of the focusing unit () relative to the build plane (). 112345164571513144515157. Apparatus () for additively manufacturing of three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam ( , ) , wherein the apparatus () comprises a scanning unit () configured to scan the energy beam ( , ) over at least a part of a build plane () , characterized by a focusing unit () configured to control a focal position ( , ) of the energy beam ( , ) via a positioning of at least one optical component of the focusing unit () and/or a positioning of the focusing unit () relative to the build plane ().2154591. Apparatus according to claim 1 , characterized in that an energy beam source and/or the focusing unit () is associated with at least one calibration means configured to change the focal position of the energy beam ( claim 1 , ) with respect to a defined point of a build module () of the apparatus ().315. Apparatus according to claim 1 , characterized in that the focusing unit () comprises at least one optical lens or a lens system.4171561716. Apparatus according to claim 1 , characterized by a control unit () configured to control the focusing unit () and/or the scanning unit () claim 1 , wherein the control unit () is configured to receive calibration information of at least one focus ...

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Номер записи: 76
24-01-2019 дата публикации

PLANT FOR ADDITIVELY MANUFACTURING OF THREE-DIMENSIONAL OBJECTS

Номер: US20190022932A1
Автор: Kroher Tanja, STAMMBERGER Jens, Ullrich Andreas, WINIARSKI Daniel
Принадлежит: CL SCHUTZRECHTSVERWALTUNGS GMBH

Plant () for additively manufacturing of three-dimensional objects (), comprising at least two apparatuses () for additively manufacturing of three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam (-), wherein a separate beam generating unit () configured to generate at least one energy beam (-) that is guidable to at least one of the apparatuses (). 112342569106934. Plant () for additively manufacturing of three-dimensional objects () , comprising at least two apparatuses ( , ) for additively manufacturing of three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam (-) , characterized by a separate beam generating unit () configured to generate at least one energy beam (-) that is guidable to at least one of the apparatuses ( , ).21369346934. Plant according to claim 1 , characterized by a beam guiding unit () configured to distribute at least one energy beam (-) selectively between at least two apparatuses ( claim 1 , ) and/or to guide at least one energy beam (-) selectively to one or more apparatuses ( claim 1 , ).31713341369. Plant according to claim 1 , characterized by a control unit () configured to control a beam guiding unit () dependent on at least one energy beam demand of at least one of the apparatuses ( claim 1 , ) claim 1 , wherein the beam guiding unit () distributes at least one energy beam (-) dependent on the energy beam demand.434. Plant according to claim 3 , characterized in that the energy beam demand comprises information relating to a process step of at least one apparatus ( claim 3 , ) and/or a status of a manufacturing process.513693434. Plant according to claim 2 , characterized in that the beam guiding unit () is configured to guide at least one energy beam (-) to one apparatus ...

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Номер записи: 77
24-01-2019 дата публикации

APPARATUS FOR ADDITIVELY MANUFACTURING OF THREE-DIMENSIONAL OBJECTS

Номер: US20190022938A1
Автор: HOFMANN ALEXANDER, STAMMBERGER Jens, WINIARSKI Daniel
Принадлежит: CL SCHUTZRECHTSVERWALTUNGS GMBH

Apparatus () for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam, comprising at least one process chamber (), wherein the process chamber () comprises at least two chamber segments (), wherein at least one chamber segment () is mounted on the at least one other chamber segment () and is separately detachable. 1122343434. Apparatus () for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam , comprising at least one process chamber () , characterized in that the process chamber () comprises at least two chamber segments ( , ) , wherein at least one chamber segment ( , ) is mounted on the at least one other chamber segment ( , ) and is separately detachable.23467. Apparatus according to claim 1 , characterized in that at least one chamber segment ( claim 1 , ) is separable into at least two sub-segments ( claim 1 , ).33452. Apparatus according to claim 1 , characterized in that the chamber segment ( claim 1 , ) is at least part of a wall and/or a base plate () and/or a cover delimiting the process chamber ().4103434. Apparatus according to claim 1 , characterized in that at least one connection () and/or at least one interface assigned to at least one separately detachable chamber segment ( claim 1 , ) is detachable from the chamber segment ( claim 1 , ).534. Apparatus according to claim 1 , characterized in that the at least one chamber segment ( claim 1 , ) comprises a port and/or a seal and/or a lock and/or a lead-in chamfer.63434. Apparatus according to claim 1 , characterized in that at least one chamber segment ( claim 1 , ) is extractably mounted on the at least one other chamber segment ( claim 1 , ).7834. Apparatus according to claim 1 , ...

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Номер записи: 78
24-01-2019 дата публикации

Automated de-powdering with robotically controlled vacuum

Номер: US20190022942A1
Автор: Charles Edward Martin, Emanuel M. Sachs, Jonah Samuel Myerberg, Justin Cumming, Paul Hoisington, Ricardo Fulop, Robert Michael Shydo, JR.
Принадлежит: Desktop Metal, Inc.

A system for de-powdering one or more objects within a powder print bed comprises a build box configured to contain the powder print bed, and a de-powdering subsystem configured to engage the build box. The de-powdering subsystem comprises a vacuum device configured to withdraw loose powder agitated by the air jet device, and a robotic arm configured to convey the vacuum device to one or more locations on the powder print bed. The system may further comprise an air jet device disposed on the robotic arm, the air jet device configured to agitate, with a jet of air, unbound powder within the powder print bed. The system may further comprise a mechanical agitation instrument configured to facilitate agitation of the unbound powder within the powder print bed. The mechanical agitation instrument may be used in conjunction with one or both of the vacuum device and the air jet device

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Номер записи: 79
24-01-2019 дата публикации

APPARATUS FOR ADDITIVELY MANUFACTURING OF THREE-DIMENSIONAL OBJECTS

Номер: US20190022943A1
Автор: SCHÖDEL Frank, STAMMBERGER Jens
Принадлежит: CL SCHUTZRECHTSVERWALTUNGS GMBH

Apparatus () for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam, comprising at least one module () moveable between at least two positions along a travel path, wherein a stream generating unit () is configured to create a stream of process gas () onto the module () at least partly along the travel path () of the module () between the first and the second position (). 111326725234. Apparatus () for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam , comprising at least one module () moveable between at least two positions along a travel path , characterized by a stream generating unit () configured to create a stream of process gas () onto the module () at least partly along the travel path () of the module () between the first and the second position ( , ).221324. Apparatus according to claim 1 , characterized in that the module () is at least partly integrated in a process chamber of the apparatus () in the first position () and wherein the module () is outside the process chamber in the second position ().3688725. Apparatus according to claim 1 , characterized in that the stream generating unit () is connected with a guiding structure () claim 1 , in particular a channel claim 1 , or comprises a guiding structure () configured to guide and distribute the process gas () to the module () along at least part of the travel path ().489952. Apparatus according to claim 3 , characterized in that the guiding structure () comprises at least two gas outlets () claim 3 , in particular a plurality of gas outlets () claim 3 , preferably nozzles claim 3 , distributed along the travel path () of the module ().5834852. Apparatus according to claim 4 , ...

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Номер записи: 80
24-01-2019 дата публикации

APPARATUS FOR ADDITIVELY MANUFACTURING THREE-DIMENSIONAL OBJECTS

Номер: US20190022944A1
Автор: DÖHLER Tim
Принадлежит: CL SCHUTZRECHTSVERWALTUNGS GMBH

Apparatus () for additively manufacturing three-dimensional objects () by successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam (), the apparatus () comprising: —a process chamber () comprising a build plane () in which layers of build material () are successively layerwise selectively irradiated and consolidated by means of an energy beam () during operation of the apparatus (); —a gas stream generating device () configured to generate a gas stream at least partly streaming through the process chamber () during operation of the apparatus (), the gas stream being capable of being charged with non-consolidated build material particles (); and —an optical determining device () configured to optically determine at least one parameter suitable for characterizing the streaming properties of the gas stream streaming through the process chamber (). 112341. Apparatus () for additively manufacturing three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a build material () which can be consolidated by means of an energy beam () , the apparatus () comprising:{'b': 8', '7', '3', '4', '1, 'a process chamber () comprising a build plane () in which layers of build material () are successively layerwise selectively irradiated and consolidated by means of an energy beam () during operation of the apparatus ();'}{'b': 9', '8', '1', '25', '1', '8, 'a gas stream generating device () configured to generate a gas stream at least partly streaming through the process chamber () during operation of the apparatus (), the gas stream being capable of being charged with non-consolidated build material particles (), particularly smoke or smoke residues generated during operation of the apparatus (), while streaming through the process chamber (); and'}{'b': 12', '8', '1', '8, 'an optical determining device () configured to optically determine ...

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Номер записи: 81
24-01-2019 дата публикации

METHOD FOR CONTROLLING OPERATION OF AT LEAST ONE ADDITIVE MANUFACTURING APPARATUS FOR ADDITIVELY MANUFACTURING OF THREE-DIMENSIONAL OBJECTS

Номер: US20190022949A1
Автор: Bechmann Florian, Hertzel Ralf, Herzog Frank, Lippert Markus
Принадлежит: CONCEPT LASER GMBH

Method for controlling operating of at least one additive manufacturing apparatus () for additively manufacturing of three-dimensional objects is provided by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material which can be consolidated by means of an energy beam, embodiments including exemplary steps of: supplying authorization data (AD) which contains at least one authorization parameter that authorizes the operation of at least one additive manufacturing apparatus () or at least one functional unit (-) of the at least one additive manufacturing apparatus () from an external data supply source (), transmitting the authorization data (AD) from the external data supply source () to a control unit () of the at least one additive manufacturing apparatus (), and controlling operation of the additive manufacturing apparatus () or the at least one functional unit (-). 11. Method for controlling operating of at least one additive manufacturing apparatus () for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material which can be consolidated by means of an energy beam , comprising the steps of:{'b': 1', '2', '7', '1', '10, 'supplying authorization data (AD) which contains at least one authorization parameter that authorizes the operation of at least one additive manufacturing apparatus () for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material which can be consolidated by means of an energy beam or at least one functional unit (-) of the at least one additive manufacturing apparatus () from an external data supply source (),'}{'b': 10', '8', '1', '8', '1', '2', '7', '1, 'transmitting the authorization data (AD) from the external data supply source () to a control unit () of the at least one ...

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Номер записи: 82
23-01-2020 дата публикации

ADDITIVELY-MANUFACTURED FLOW RESTRICTORS AND METHODS FOR THE FABRICATION THEREOF

Номер: US20200023433A1
Автор: Conrad Elliot, Kasal Yathiraj, Lewis Steven Alan, Spier Michael J., Tillich Sammuel, Valencourt Gary A.
Принадлежит: HONEYWELL INTERNATIONAL INC.

Additively-manufactured flow restrictors are provided, as are methods for producing additively-manufactured flow restrictors. In various embodiments, the additively-manufactured flow restrictor includes a flowbody through which a flow path extends, a restricted orifice located in the flowbody and providing a predetermined resistance to fluid flowing along the flow path in a first flow direction, and a first internal perforated screen positioned in the flow path upstream of the restricted orifice taken in the first flow direction. The flowbody and the first internal perforated screen integrally formed as a single additively-manufactured piece utilizing, for example, Direct Metal Laser Sintering (DMLS) or another additive manufacturing process. In certain embodiments, the first internal perforated screen may include an endwall and a peripheral sidewall, which is integrally formed with the endwall and spaced from an inner circumferential surface of the flowbody by an annular clearance. 1. An additively-manufactured flow restrictor , comprising:a flowbody through which a flow path extends;a restricted orifice located in the flowbody and providing a predetermined resistance to fluid flow along the flow path in a first flow direction; anda first internal perforated screen positioned in the flow path upstream of the restricted orifice taken in the first flow direction, the flowbody and the first internal perforated screen integrally formed as a single additively-manufactured piece.2. The additively-manufactured flow restrictor of wherein the first internal perforated screen comprises:an endwall; anda peripheral sidewall integrally formed with the endwall and spaced from an inner circumferential surface of the flowbody by an annular clearance.3. The additively-manufactured flow restrictor of wherein the first internal perforated screen further comprises perforations formed through the endwall and through the annular sidewall.4. The additively-manufactured flow restrictor of ...

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Номер записи: 83
23-01-2020 дата публикации

METHOD OF ADDITIVE MANUFACTURING A THREE-DIMENSIONAL OBJECT

Номер: US20200023434A1
Автор: KAJI Toshio
Принадлежит: SODICK CO., LTD.

The disclosure provides a method of additive manufacturing a three-dimensional object, which can prevent a blade from being caught by a deformed part that is generated due to an unpredictable change of a sintering condition. In the method of additive manufacturing the three-dimensional object, if a deformed part having any height is generated on the upper surface of the nsintered layer, when the next n+1sintered layer is formed, the n+1powder layer is irradiated with laser by avoiding the region where the deformed part is generated. Then, after the n+2powder layer is formed, the unsintered part is sintered together with the n+2powder layer. 1. A method of additive manufacturing a three-dimensional object for irradiating with laser a predetermined region of each powder layer , which is composed of material powder of metal formed on a shaping table , based on shaping data of the three-dimensional object , which is a production target , to laminate and form a sintered layer , the method of additive manufacturing the three-dimensional object comprising:{'sup': 'th', 'a three-dimensional shaping data acquisition process of acquiring three-dimensional shaping data of an upper surface of an nsintered layer positioned uppermost;'}{'sup': 'th', 'a deformed part detection process of detecting whether a deformed part of any height, which protrudes with respect to the upper surface of the nsintered layer, is generated based on the three-dimensional shaping data;'}a two-dimensional data generation process of generating two-dimensional data comprising coordinate data of a region where the deformed part is generated when the deformed part is generated;{'sup': th', 'th', 'th', 'th, 'a corrected n+1layer shaping data generation process of matching and comparing coordinates of initial n+1layer shaping data and the two-dimensional data, and generating corrected n+1layer shaping data that excludes the region where the deformed part is generated, which is defined in the two-dimensional ...

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Номер записи: 84
23-01-2020 дата публикации

System And Process For In-process Electron Beam Profile and Location Analyses

Номер: US20200023435A1
Автор: Christopher J. Sutcliffe, Eric Jones, Hay Wong
Принадлежит: Howmedica Osteonics Corp, University of Liverpool

A High Energy Beam Processing (HEBP) system provides feedback signal monitoring and feedback control for the improvement of process repeatability and three-dimensional (3D) printed part quality. Electrons deflected from a substrate in the processing area impinge on a surface of a sensor. The electrons result from the deflection of an electron beam from the substrate. Either one or both of an initial profile of an electron beam and an initial location of the electron beam relative to the substrate are determined based on a feedback electron signal corresponding to the impingement of the electrons on the surface of the sensor. With an appropriate profile and location of the electron beam, the build structure is fabricated on the substrate.

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Номер записи: 85
23-01-2020 дата публикации

METHOD FOR PRODUCING A GAS TURBINE COMPONENT

Номер: US20200023438A1
Автор: Burbaum Bernd, JOKISCH TORSTEN
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A method for producing a gas turbine component, which comes into frictional contact with a friction partner, includes: providing a base body produced from a superalloy; applying a first metal coating to a surface of the base body facing the at least one friction partner in the mounted state, wherein an additive production method using a first metal powder is used to apply the first metal coating; and applying a second metal coating to the first metal coating, wherein an additive production method using a second metal powder and a pulverulent pore-forming agent is used to apply the second metal coating and, by adding the pore-forming agent, the porosity of the second metal coating is set such that it is greater than the porosity of the first metal coating, and the volume flows of the introduced metal powder and the introduced pulverulent pore-forming agent are set or controlled separately. 1. A method for producing a gas turbine component , which in an intended mounted state comes in frictional contact with at least one friction partner during gas turbine operation , the method comprising:providing a base body which is produced from a superalloy,applying a first metal coating onto a surface of the base body, which surface faces toward the at least one friction partner in the intended mounted state, an additive manufacturing method using a first metal powder being employed for the application of the first metal coating;applying a second metal coating onto the first metal coating, an additive manufacturing method using a second metal powder and a pore-forming agent in powder form being employed for the application of the second metal coating, and a porosity of the second metal coating being adjusted by the addition of the pore-forming agent in such a way that it is greater than the porosity of the first metal coating, and volume flow rates of the second metal powder and the pore-forming agent in powder form being adjusted or regulated separately.2. The method as ...

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Номер записи: 86
23-01-2020 дата публикации

SELECTIVE LASER SOLIDIFICATION APPARATUS AND METHOD

Номер: US20200023463A1
Автор: DIMTER Marc Frank, HESS Thomas, MAYER Ralph Markus
Принадлежит: RENISHAW PLC

Selective laser solidification apparatus is described that includes a powder bed onto which a powder layer can be deposited and a gas flow unit for passing a flow of gas over the powder bed along a predefined gas flow direction. A laser scanning unit is provided for scanning a laser beam over the powder layer to selectively solidify at least part of the powder layer to form a required pattern. The required pattern is formed from a plurality of stripes or stripe segments that are formed by advancing the laser beam along the stripe or stripe segment in a stripe formation direction. The stripe formation direction is arranged so that it always at least partially opposes the predefined gas flow direction. A corresponding method is also described. 1. Selective laser solidification apparatus , comprising;a powder bed onto which a powder layer can be deposited,a gas flow unit for passing a flow of gas over the powder bed along a predefined gas flow direction, anda laser scanning unit for scanning a laser beam over the powder layer to selectively solidify at least part of the powder layer to form a required pattern, the required pattern being formed from a plurality of stripes or stripe segments, each stripe or stripe segment being formed by advancing the laser beam along the stripe or stripe segment in a stripe formation direction,wherein the stripe formation direction is always at least partially opposed to the predefined gas flow direction.2. An apparatus according to claim 1 , wherein the stripe formation direction subtends an angle (α) of more than 30° to the normal to the gas flow direction.3. An apparatus according to claim 1 , wherein the flow of gas over the powder bed originates from a first side of the powder bed and the plurality of stripes are formed in reverse order of their proximity to the first side of the powder bed.4. An apparatus according to claim 1 , wherein the gas flow unit comprises at least one gas outlet and at least one gas exhaust claim 1 , the ...

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Номер записи: 87
24-01-2019 дата публикации

Calcium-based metallic glass alloy molded body for medical use and production method thereof

Номер: US20190024223A1
Автор: Guoqiang Xie, Hajime Takada, Hiroyasu Kanetaka
Принадлежит: Tohoku University NUC

It is an object of the present invention to provide a production method of a calcium-based metallic glass alloy molded body for medical use which has a biodegradable property, has a mechanical strength equal to or higher than that of metal materials, and enables complex molding and a wide range of applications. The calcium-based metallic glass alloy molded body for medical use is produced by mixing a metal powder including a calcium powder, alloying the mixed metal powder, and sintering the alloyed mixed metal powder.

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Номер записи: 88
28-01-2021 дата публикации

Method For Producing A Three-Dimensional Component

Номер: US20210023620A1
Автор: Herzog Frank
Принадлежит:

The invention relates to a method for producing a three-dimensional component by an electron-beam, laser-sintering or laser-melting process, in which the component is created by successively solidifying predetermined portions of individual layers of building material that can be solidified by being exposed to the effect of an electron-beam or laser-beam source () by melting on the building material, wherein thermographic data records are recorded during the production of the layers, respectively characterizing a temperature profile of at least certain portions of the respective layer, and the irradiation of the layers takes place by means of an electron beam or laser beam (), which is controlled on the basis of the recorded thermographic data records in such a way that a largely homogeneous temperature profile is produced, wherein, to irradiate an upper layer, a focal point () of the electron beam or laser beam () is guided along a scanning path (), which is chosen on the basis of the data record characterizing the temperature profile of at least certain portions of the layer lying directly thereunder or on the basis of the data records characterizing the temperature profiles of at least certain portions of the layers lying thereunder. 115-. (canceled)16. A method for producing a three-dimensional component , the method comprising:receiving, with a building platform, a powder bed comprising solidifiable building material;applying, with a powder coating system, a powder layer onto the building platform;focusing, with a laser radiation source, a laser beam incident upon the powder layer;guiding, with a scanning device, the laser beam to the powder layer, thereby selectively solidifying the building material;acquiring, with a thermographic detector, temperature data comprising a temperature profile of one or more layers of building material, the one or more layers comprising solidified building material;storing, with a memory of a control device, the temperature data; ...

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Номер записи: 89
28-01-2021 дата публикации

APPARATUS AND METHOD FOR CONTINUOUS ADDITIVE MANUFACTURING

Номер: US20210023621A1
Автор: Corsmeier Donald Michael
Принадлежит:

An apparatus for continuous powder-based additive manufacturing of a large annular object or multiple smaller objects simultaneously is described. The build unit(s) of the apparatus includes a powder delivery mechanism, a powder recoating mechanism and an irradiation beam directing mechanism. The build unit(s) is attached to a rotating mechanism such that the build unit(s) rotates around and above the annular powder bed during production. The rotating mechanism is supported onto a central tower, and both the rotating mechanism and the tower are concentric with the non-rotating annular powder bed. An additive manufacturing method using the apparatus involves repetitive and continuous cycles of at least simultaneously rotating the build unit(s) to deposit powder onto the powder bed and irradiating the powder to form a fused additive layer. The continuous additive manufacturing process may be further aided with a helical configuration of the powder bed build surface. 1. A method of manufacturing at least one object , comprising:(a) rotating at least one build unit in a circular path around a center of rotation to deposit powder onto a build platform, wherein the build platform is positioned between an inner wall and an outer wall;(b) irradiating at least one selected portion of the powder to form at least one fused layer;(c) moving the build platform relative to the inner wall and the outer wall; and(d) repeating at least steps (a) through (c) to form the at least one object.2. The method of claim 1 , further comprising:(e) leveling the at least one selected portion of the powder.3. The method of claim 2 , wherein at least steps (a) claim 2 , (b) claim 2 , (c) claim 2 , and (e) are carried out simultaneously and continuously.4. The method of claim 1 , wherein the build platform is moved along a vertical direction.5. The method of claim 4 , wherein the circular path is defined about the vertical direction.6. The method of claim 1 , wherein the powder is deposited in a ...

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Номер записи: 90
28-01-2021 дата публикации

METHODS FOR CALIBRATING A PROCESSING MACHINE, AND PROCESSING MACHINES

Номер: US20210023622A1
Автор: Allenberg-Rabe Matthias, Blickle Valentin, Gronle Marc, Pieger Markus, Schaal Frederik
Принадлежит:

The disclosure provides methods for calibrating processing machines for the production of 3D components by irradiation of powder layers, wherein the processing machine includes a scanner device for positioning a laser beam in a processing field in which a height-adjustable construction platform for the application of the powder layers by sweeping at least two, e.g., three markings, e.g., in the form of spherical retroreflectors, which are applied on the construction platform and/or on a preform , by the laser beam, detecting laser radiation reflected back from the markings into the scanner device , determining actual positions of the markings , determining deviations of the actual positions of the markings from setpoint positions of the markings, and calibrating the processing machine by correcting the positioning of the laser beam and/or the position of the construction platform using the determined deviations. The disclosure also relates to associated processing machines. 1. A method for calibrating a processing machine for the production of three-dimensional components by irradiation of powder layers , wherein the processing machine comprises a scanner device for positioning a laser beam in a processing field in which a height-adjustable construction platform for the application of the powder layers is positioned , the method comprising:sweeping the laser beam over at least two markings that are applied on either one or both of the construction platform and a preform fixed to the construction platform;detecting laser radiation reflected back from the markings into the scanner device during the sweeping of the at least two markings;, determining actual positions of the markings using the detected laser radiation;determining deviations of the actual positions of the markings from setpoint positions of the markings; and (i) correcting the positioning of the laser beam in the processing field,', '(ii) correcting the position of the construction platform in the ...

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Номер записи: 91
28-01-2021 дата публикации

ADDITIVE MANUFACTURING WITH ENERGY DELIVERY SYSTEM HAVING ROTATING POLYGON AND SECOND REFLECTIVE MEMBER

Номер: US20210023789A1
Автор: Franklin Jeffrey L., Joshi Ajey M., Maqsood Kashif, Ng Hou T., Patibandla Nag B., Zehavi Raanan
Принадлежит:

An additive manufacturing apparatus includes a platform, a dispenser to dispense a plurality of layers of feed material on a top surface of the platform, and an energy delivery assembly. The energy delivery assembly includes a light source to emit one or more light beams, a first reflective member having a plurality of reflective facets, and at least one second reflective member. The first reflective member is rotatable such that sequential facets sweep the light beam sequentially along a path on the uppermost layer. The at least one second reflective member is movable such that the at least one second reflective surface is repositionable to receive at least one of the at least one light beam and redirect the at least one of at least one light beam along a two-dimensional path on the uppermost layer. 1. An additive manufacturing apparatus comprising:a platform;a dispenser to dispense a plurality of layers of powder a top surface of the platform;at least one light source to emit a first light beam and a second light beam,a polygon mirror scanner including a first reflective member positioned in an optical path of the first light beam and not in an optical path of the second light beam to direct the first light beam toward the top surface of the platform to deliver energy to an uppermost layer of the layers of powder, the reflective member having a plurality of reflective facets and rotatable about an axis such that sequential facets sweep a first impingement spot of the first light beam on the uppermost layer sequentially along a predefined path on the uppermost layer,an actuator to move the predefined path relative to the platform such that a sequence of sweeps by the first impingement spot along the predefined path creates a raster scan by the light beam across the uppermost layer, anda galvo mirror scanner including at least one reflective surface positioned in the optical path of the second light beam and not in the optical path of the first light beam to direct ...

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Номер записи: 92
24-01-2019 дата публикации

METHOD FOR ADDITIVELY MANUFACTURING OF THREE-DIMENSIONAL OBJECTS

Номер: US20190025117A1
Автор: BATYI Benjamin, HETZEL Ralf, Hoch Johanna
Принадлежит: CL SCHUTZRECHTSVERWALTUNGS GMBH

Apparatus () for additively producing three-dimensional objects () by successive layer-by-layer selective exposure and, accompanying this, successive layer-by-layer selective solidification of construction material layers made of a construction material () that can be solidified by means of an energy beam (), including an exposure device () which is configured to produce an energy beam () for successive layer-by-layer selective exposure and, accompanying this, successive layer-by-layer selective solidification of construction material layers made of a construction material () that can be solidified by means of the energy beam (), a measuring device () that is assignable or assigned to the exposure device () and configured to measure the power of the energy beam () that is produced by the exposure device (), wherein the measuring device () comprises a measuring element () that comprises an energy beam input face (), and at least an energy beam widening device (). 11234. Apparatus () for additively producing three-dimensional objects () by successive layer-by-layer selective exposure and , accompanying this , successive layer-by-layer selective solidification of construction material layers made of a construction material () that can be solidified by means of an energy beam () , comprising:{'b': 6', '4', '3', '4, 'an exposure device () which is configured to produce an energy beam () for successive layer-by-layer selective exposure and, accompanying this, successive layer-by-layer selective solidification of construction material layers made of a construction material () that can be solidified by means of the energy beam (),'}{'b': 13', '6', '4', '6', '13', '15', '16, 'a measuring device () that is assignable or assigned to the exposure device (), said measuring device being configured to measure the power, in particular the power density, of the energy beam () that is produced by the exposure device (), wherein the measuring device () comprises a measuring element () ...

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Номер записи: 93
28-01-2021 дата публикации

Localized Tailoring of Three-Dimensional Articles Via Additive Manufacturing

Номер: US20210026324A1
Автор: Lennon Andrew M., McCue Ian D., Nimer Salahudin M., Peitsch Christopher M., Storck Steven M., Trexler Morgana M.
Принадлежит:

Additive manufacturing processes, systems and three-dimensional articles include the formation of voxels and/or portions of three-dimensional articles with different properties relative to other voxels and/or portions. The processes generally include changing one or more laser beam parameters including power level, exposure time, hatch spacing, point distance, velocity, and energy density during the formation of selected voxels and/or portions of the three-dimensional articles. Also disclosed are processes that include an additive manufacturing process that provides localized secondary heat treatment of certain voxels and/or regions at a temperature below the melting point of the three-dimensional article but high enough to effect a localized property change. 1. A process for forming a three-dimensional article , comprising:successively forming the three-dimensional article from a feedstock layer-by-layer via an additive manufacturing process, wherein the feedstock comprises a plurality of discrete metallic or non-metallic particles, wherein successively building comprises exposing at least one voxel and/or portion in a layer or layers to a different thermal profile to provide the three-dimensional article with at least one different property relative to other voxels and/or other portions of the three-dimensional article.2. The process of claim 1 , wherein the at least one different property comprises a local change in microstructure claim 1 , a local change in a chemical composition claim 1 , a local change in a functional property and/or introduction of a local defect.3. The process of claim 1 , wherein exposing the at least one voxel and/or portion of the three-dimensional article to the different thermal profile comprises changing one or more parameters associated with an energy beam selected from the group consisting of power claim 1 , exposure time claim 1 , point distance claim 1 , hatch spacing claim 1 , velocity claim 1 , and energy density.4. The process ...

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Номер записи: 94
02-02-2017 дата публикации

METHOD FOR PRODUCING A COMPONENT AND AN APPARATUS FOR WORKING THE METHOD

Номер: US20170028471A1
Автор: BOSWELL John H
Принадлежит: ROLLS-ROYCE PLC

A powder deposition apparatus for producing a component comprises a base plate, an annular stack of heating elements, accommodating the base plate, one or more insulating elements, being interleaved between adjoining heating elements, a mechanism operable to deposit a plurality of layers of a powder material onto the base plate, and a laser energy source operable to selectively fuse a portion of the deposited layer. The annular stack of heating elements is sized such that a predetermined clearance is defined between the component and the annular stack of heating elements. 1. A method for producing a component using a powder deposition apparatus , the powder deposition apparatus comprising a base plate enclosed by an annular stack of heating elements , adjoining heating elements being separated by respective insulating layers , the method comprising the steps of:(i) selecting a stack of heating elements such that a pre-determined clearance is defined between the component and the stack of heating elements;(ii) aligning the base plate with an uppermost heating element in the stack of heating elements;(iii) depositing a layer of a powder material onto the base plate;(iv) providing energy to the uppermost heating element to heat the deposited powder material to a first temperature;(v) selectively fusing a proportion of the layer using a laser energy source, the selectively fused material corresponding to a respective cross-section of the component;(vi) lowering the base plate into the stack of heating elements by a pre-determined layer thickness;(vii) repeating steps (iii), (iv) and (v) to build up a thickness of the component;(viii) as the thickness of the component exceeds a depth of the heating element, and multiples thereof, providing energy to corresponding successive heating elements in the stack; andrepeating steps (iii) to (viii) until the component is complete.2. The method as claimed in claim 1 , wherein step (viii) comprises the step of:(viii)′ as the ...

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Номер записи: 95
02-02-2017 дата публикации

METHOD AND DEVICE FOR LAYER-WISE PRODUCTION OF PATTERNS

Номер: US20170028630A1
Автор: Ederer Ingo, Hartmann Andreas
Принадлежит:

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 having an ejection system. 1. An apparatus for the manufacture of a three-dimensional object in layers comprising a) a reservoir,', 'b) a spreader unit,', 'c) a particulate material conveying component, and', 'd) a build platform on which the object is built;, 'i) a device for conveying a particulate material during the manufacture of the object in layers, wherein the devise comprises'}whereinthe particulate material conveying component conveys the particulate material from the reservoir to the spreader unit;the spreader unit is adapted for spreading the particulate material onto the build platform and includes an ejection system including a first component having a pattern of openings and a second component having the same pattern of openings, wherein the first component moves relative to the second component for shifting the patterns of openings between an aligned configuration and a sealed configuration.2. The apparatus of claim 1 , wherein the first component and the second component are tubes having spaced apart openings along a bottom length of the tubes.3. The apparatus of claim 1 , wherein the particulate material conveying component includes a screw conveyor.4. The apparatus of claim 3 , wherein the screw conveyor is the spreader unit.5. The apparatus of claim 4 , wherein the screw conveyor extends the length of the spreader unit.6. The apparatus of claim 1 , wherein the reservoir is arranged below the spreader unit in vertical direction claim 1 , thus viewed in the direction at right angles to the coating direction claim 1 , at least during filling process.7. The apparatus of claim 1 , wherein the apparatus includes a recirculation system for reintroducing particulate material back into the spreader after being ejected from the ejection system.8. ...

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Номер записи: 96
02-02-2017 дата публикации

REAL-TIME RESONANT INSPECTION FOR ADDITIVE MANUFACTURING

Номер: US20170028703A1
Автор: Xu JinQuan
Принадлежит: UNITED TECHNOLOGIES CORPORATION

A method of additive manufacturing comprises determining a first resonant frequency of an unflawed reference workpiece at a first partial stage of completion, fabricating a production workpiece to the first partial stage of completion via additive manufacture, sensing a second resonant frequency of the production workpiece in-situ at the first partial stage of completion, during the fabrication, analyzing the workpiece for flaws based on comparison of the first and second resonant frequencies, and providing an output indicative of production workpiece condition, based on the analysis. An additive manufacturing system comprises an additive manufacturing tool, a sensor, and a controller. The additive manufacturing tool is disposed to construct a workpiece via iterative layer deposition. The sensor is disposed to determine a resonant frequency of the workpiece in-situ at the additive manufacturing tool, during fabrication. The controller is configured to terminate manufacture of the workpiece if the resonant frequency differs substantially from a reference frequency. 1. A method of additive manufacturing comprises:determining a first resonant frequency of an unflawed reference workpiece at a first partial stage of completion;fabricating a production workpiece to the first partial stage of completion via additive manufacture;sensing a second resonant frequency of the production workpiece in-situ at the first partial stage of completion, during the fabricating;analyzing the workpiece for flaws based on comparison of the first and second resonant frequencies; andproviding an output indicative of production workpiece condition, based on the analysis.2. The method of claim 1 , further comprising:prematurely terminating fabrication of the production in response to substantial deviation of the second resonant frequency from the first resonant frequency.3. The method of claim 2 , wherein the first resonant frequency differs substantially from the second resonant frequency if ...

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Номер записи: 97
04-02-2016 дата публикации

BUILD PLATFORMS FOR ADDITIVE MANUFACTURING

Номер: US20160031010A1
Автор: "ONeill Christopher F.", Boyer Jesse R., Delisle Robert P.
Принадлежит:

An additive manufacturing apparatus is disclosed which includes a movable platform. The movable platform has a plurality of fasteners and an upper surface, and at least one indexing feature. An upper surface of a movable platform is coupled with an indexing device such that movement of either one corresponds to movement of the other. The indexing device is capable of receiving a compatible indexing device from a manufacturing 1. A method of manufacturing an object , the method comprising:attaching a movable platform to an additive manufacturing apparatus;indexing the relative position of the movable platform to the additive manufacturing apparatus;additively manufacturing a support structure on the movable platform with the additive manufacturing apparatus;additively manufacturing an object on the support structure with the additive manufacturing apparatus;transferring the movable platform, the support structure, and the object to a subtractive manufacturing apparatus;indexing the relative position of the movable platform to the subtractive manufacturing apparatus;subtractively manufacturing the object; andseparating the object from the movable platform.2. The method of wherein the additive manufacturing apparatus is one of the group consisting of:a direct metal laser sintering apparatus;a selective laser sintering apparatus;a laser engineered net shaping apparatus; andan electron beam melting apparatus.3. The method of claim 1 , wherein the support structure is a honeycomb mesh.4. The method of claim 1 , wherein separating the object from the movable platform includes cutting the object from the support structure and cutting the support structure from the movable platform.5. The method of claim 1 , wherein indexing the relative position of the movable platform to the additive manufacturing apparatus includes indexing a surface of the movable platform on which the object will be manufactured.6. The method of claim 5 , wherein indexing the relative position of the ...

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Номер записи: 98
23-01-2020 дата публикации

ELECTRICAL CONTACT ALLOY FOR VACUUM CONTACTORS

Номер: US20200027668A1
Автор: Balasubramanian Ganesh Kumar, CAMPBELL LOUIS GRANT, ROSENKRANS BENJAMIN ALEX
Принадлежит: Eaton Intelligent Power Limited

An improved electrical contact alloy, useful for example, in vacuum interrupters used in vacuum contactors is provided. The contact alloy according to the disclosed concept comprises copper particles and chromium particles present in a ratio of copper to chromium particles of 2:3 to 20:1 by weight. The electrical contact alloy also comprises particles of a carbide, which reduces the weld break strength of the electrical contact alloy without reducing its interruption performance. 1. A method of making an electrical contact for use in a vacuum interrupter comprising:milling carbide particles to a desired size;providing copper and chromium particles that are larger in size than the milled carbide particles;mixing the milled carbide particles with the copper and chromium particles, present in a ratio of copper to chromium particles at 2:3 to 20:1 by weight;pressing the mixture into a compact; and,heating the compact to a temperature appropriate to a sintering process selected from the group consisting of solid state sintering, liquid phase sintering, spark plasma sintering, vacuum hot pressing, and hot isostatic pressing, such that the compact attains the properties suitable for use as a vacuum interrupter contact.2. The method recited in further comprising forming an electrical contact of a desired configuration by machine shaping the dense blank.3. The method recited in wherein the process is a sintering process and the method further comprises adding to the mixture a sinter activation element to increase the density of the compact upon sintering.4. The method recited in wherein the sinter activation element is selected from the group consisting of cobalt claim 3 , nickel claim 3 , nickel-iron claim 3 , iron aluminide claim 3 , and combinations thereof.5. The method recited in wherein the process is a sintering process claim 1 , and the temperature is between 1085° C. and 1200° C.6. The method recited in wherein the carbide particles are selected from the group ...

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Номер записи: 99
01-02-2018 дата публикации

GAS-RECYCLING DEVICE, ADDITIVE MANUFACTURING APPARATUS, AND ADDITIVE MANUFACTURING METHOD

Номер: US20180029122A1
Автор: MACHIDA Morihiro, NAKANO Hideshi, Ohno Hiroshi, WATASE Aya
Принадлежит: KABUSHIKI KAISHA TOSHIBA

A gas-recycling device according to an embodiment includes a particle remover, a liquid remover, and a supplier. The particle remover brings a mist of liquid into contact with a gas which includes particles and is discharged from an apparatus, to remove the particles from the gas. The liquid remover removes the liquid from the gas having passed through the particle remover. The supplier supplies the gas to the apparatus. 1. A gas-recycling device comprising:a particle remover which brings a mist of liquid into contact with a gas which includes particles and is discharged from an apparatus, to remove the particles from the gas;a liquid remover which removes the liquid from the gas having passed through the particle remover; anda supplier which supplies the gas to the apparatus.2. The gas-recycling device according to claim 1 ,wherein the particle remover includes a receiver, an injector which injects the mist of liquid toward the receiver, and a filter which captures the particles from the liquid including the particles and adhering to the receiver.3. The gas-recycling device according to claim 2 ,wherein the receiver is provided with a discharger from which the liquid including the particles is discharged, andthe filter has the discharged liquid from the discharger pass therethrough.4. The gas-recycling device according to claim 3 ,wherein the filter forms a first wound part, a second wound part, and a third part located between the first part and the second part, the third part through which the liquid discharged from the discharger passes, andthe particle remover includes a detector which detects a weight of the third part of the filter, and a conveyer which conveys the filter from the first part to the second part in accordance with the weight of the third part.5. The gas-recycling device according to claim 2 ,wherein the particle remover further includes a liquid supplier which supplies the liquid filtered through the filter to the injector.6. The gas-recycling ...

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Номер записи: 100