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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 1994. Отображено 100.
05-01-2017 дата публикации

METHOD AND ARRANGEMENT FOR BUILDING METALLIC OBJECTS BY SOLID FREEFORM FABRICATION

Номер: US20170001253A1
Автор: Stempfer Ferdinand
Принадлежит:

This invention relates to a method and arrangement for manufacturing objects by solid freeform fabrication, especially titanium and titanium alloy objects, wherein the deposition rate is increased by supplying the metallic feed material in the form of a wire and employing two gas transferred arcs, one plasma transferred arc for heating the deposition area on the base material and one plasma transferred arc for heating and melting the feed wire. 1. A system for building metallic objects by solid freeform fabrication , comprising:a first PTA torch electrically connected to a base material and a second PTA torch electrically connected to a feed wire; anda control system to control the first and second torches, and the feed wire to form an object by fusing successive deposits of a metallic material onto the base material.2. The system of claim 1 , wherein the electrical connection between the first PTA torch and the base material is achieved by a first power source claim 1 , and the electrical connection between the second PTA torch and the feed wire is achieved by a second power source.3. The system of claim 2 , wherein the first and second power sources are direct current.4. The system of claim 3 , wherein the first and second direct current power sources include independent controls.5. The system of claim 1 , wherein the first PTA torch preheats the base material at a position at which the metallic material is to be deposited.6. The system of claim 1 , wherein the second PTA torch melts the feed wire.7. The system of claim 1 , wherein at least one of the first and second PTA torches includes arc deflection control.8. The system of claim 1 , wherein the first PTA torch is a gas tungsten arc welding torch.9. The system of claim 1 , wherein at least one of first and second PTA torches is a gas metal arc welding torch.10. The system of claim 1 , further comprising an electrical connection between the second PTA torch and the base material.11. The system of claim 10 , ...

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Номер записи: 1
05-01-2017 дата публикации

METHOD FOR JOINING DIFFERENT KINDS OF PLATES

Номер: US20170001262A1
Автор: LEE Mun Yong, SONG Mun Jong
Принадлежит:

The present invention relates to a joining method, and more specifically relates to a method for joining different kinds of plates that joins at least two plate members of which materials thereof are different from each other through laser welding. For this, a method for joining different kinds of plates according to an exemplary embodiment of the present invention may include disposing a first plate and a second plate, materials of which are different from each other, such that they are overlapped with each other, and joining the first plate and the second plate by irradiating a laser beam at a predetermined inclination angle and in a regular pattern onto the overlapped portion of the two plates. 1. A method for joining different kinds of plates , comprising:disposing a first plate and a second plate, materials thereof being different from each other, such that they are overlapped with each other; andjoining the first plate and second plate by irradiating a laser beam at a predetermine inclination angle and in a regular pattern onto the overlapped portion of the two plates.2. The method for joining different kinds of plates of claim 1 , wherein the first plate is made of aluminum and the second plate is disposed on the first plate and is made of steel of which a melting point is higher than that of the first plate.3. The method for joining different kinds of plates of claim 2 , wherein the laser beam is outputted as a regular pulse wave.4. The method for joining different kinds of plates of claim 2 , wherein a welding pool of the second plate is charged in a key hole formed on the first plate between the first plate and the second plate.5. The method for joining different kinds of plates of claim 2 , wherein the laser beam performs conduction welding that can form a welding pool on a plate member through a non-focus part.6. The method for joining different kinds of plates of claim 5 , wherein the laser beam is irradiated such that the diameter of the laser beam ...

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Номер записи: 2
05-01-2017 дата публикации

METHOD FOR MANUFACTURING A METAL PART WITH BI-METALLIC CHARACTERISTIC AND MANUFACTURING ARRANGEMENT FOR CONDUCTING SAID METHOD

Номер: US20170001263A1
Автор: STEINER Harald
Принадлежит: ANSALDO ENERGIA IP UK LIMITED

A new method for manufacturing a metal part with bi-metallic characteristic in an additive manufacturing process includes providing a first powder of a metal with a first thermal expansion coefficient; providing a second powder of a metal with a second thermal expansion coefficient different from the first thermal expansion coefficient; manufacturing a first pure metal layer by successively melting layers of the first powder alone; manufacturing on the first pure metal layer a mixed layer by successively melting layers of a third powder being a mixture of the first and second powders, whereby the percentage of the first powder decreases from 100% to 0% with increasing thickness of the mixed layer, and whereby the percentage of the second powder increases at the same time from 0% to 100%; and manufacturing a second pure metal layer by successively melting layers of the second powder alone. 1. Method for manufacturing a metal part with bi-metallic characteristic in an additive manufacturing process , comprising:a) providing a first powder of a metal with a first thermal expansion coefficient;b) providing a second powder of a metal with a second thermal expansion coefficient different from said first thermal expansion coefficient;c) manufacturing a first pure metal layer by successively melting layers of said first powder alone;d) manufacturing on said first pure metal layer a mixed layer by successively melting layers of a third powder being a mixture of said first and second powders, whereby the percentage of said first powder decreases from 100% to 0% with increasing thickness of said mixed layer, and whereby the percentage of said second powder increases at the same time from 0% to 100%; ande) manufacturing a second pure metal layer by successively melting layers of said second powder alone.2. Method as claimed in claim 1 , wherein the mixture of the first and second powders is produced by taking a first quantity of the first powder from a first powder reservoir ...

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Номер записи: 3
05-01-2017 дата публикации

ENHANCING STRENGTH IN LASER CUTTING OF CERAMIC COMPONENTS

Номер: US20170001266A1
Автор: Chinnakaruppan Palaniappan, Hum Phillip W., Li Michael M., Rammah Marwan, Sun Yulei
Принадлежит:

A ceramic material, such as sapphire, is irradiated using a laser-based process to form a cut. In some implementations, a region of the ceramic material adjacent to the cut may be heated. The region may be removed to form an edge feature. In various implementations, the region of the ceramic material adjacent to the cut may be shielded from an outer portion of a laser beam used in the laser-based process using a shield, such as a polyethylene film. This removal and/or shielding operations may improve the mechanical strength of the ceramic material. 1. A method for forming a ceramic component , comprising:irradiating a ceramic material using a laser-based process to form a cut;heating a region of the ceramic material adjacent to the cut; andremoving the region of the ceramic material.2. The method of claim 1 , wherein the operation of irradiating and the operation of heating occur at different times.3. The method of claim 1 , wherein:the operation of heating heats the region of the ceramic material with an outer portion of a laser beam used in the laser-based process; andthe outer portion has an energy insufficient to cut the ceramic material during the operation of irradiating.4. The method of claim 1 , wherein the operation of heating the region of the ceramic material forms a defect in the ceramic material.5. The method of claim 1 , wherein the operation of heating the region of the ceramic material forms micro-cracks in the ceramic material.6. The method of claim 5 , wherein the operation of removing the region of the ceramic material removes the micro-cracks in the ceramic material.7. The method of claim 5 , wherein the operation of removing the region of the ceramic material introduces additional micro-cracks in the ceramic material that are smaller than the micro-cracks.8. The method of claim 1 , wherein the operation of removing the region of the ceramic material removes a section of the ceramic material having a depth of approximately 15-25 microns.9. The ...

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Номер записи: 4
04-01-2018 дата публикации

WELDING ELECTRODE, METHOD, AND DEVICE FOR WELDING SANDWICH PANELS

Номер: US20180001415A1
Автор: BERAK Jovan, Chergui Azeddine
Принадлежит:

A welding electrode may comprise a welding electrode body and a welding electrode cap that is connected or connectable to the welding electrode body for making contact between the welding electrode and a component for producing a welded connection. The problem of achieving an efficient heating of the sandwich sheet to be welded in a compact layout with the fewest possible modifications of the welding electrodes used heretofore is solved in that an electrically conductive resistance element integrated, or which can be integrated, in the welding electrode and which is connected or connectable in an electrically-conductive manner to the welding electrode body and the welding electrode cap is provided for the heating of the component. Furthermore, a method and a device with the welding electrode and a use are disclosed. 115.-. (canceled)16. A welding electrode comprising:a welding electrode body;a welding electrode cap that is connected or connectable to the welding electrode body and is configured to make contact with a component to produce a welded connection; andan electrically conductive resistance element for heating the component, wherein the electrically conductive resistance element is integrated or configured to be integrated in the welding electrode, wherein the electrically conductive resistance element is connected or connectable in an electrically conductive manner to the welding electrode body and the welding electrode cap.17. The welding electrode of wherein the electrically conductive resistance element is integrated or configured to be integrated in the welding electrode in a region intended to contact the component.18. The welding electrode of wherein the electrically conductive resistance element is integrated or configured to be integrated in the welding electrode body.19. The welding electrode of wherein the electrically conductive resistance element is integrated or configured to be integrated in the welding electrode cap.20. The welding electrode ...

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Номер записи: 5
04-01-2018 дата публикации

NONPLANAR WAFER AND METHOD FOR PRODUCING A NONPLANAR WAFER

Номер: US20180001416A1
Автор: Richter Jan
Принадлежит: SILTECTRA GmbH

The invention relates to a method for cutting off at least one portion (), in particular a wafer, from a solid body (). The method comprises at least the following steps: modifying the crystal lattice of the solid body () by means of a modifier (), wherein a number of modifications () are produced to form a nonplanar, in particular convex, detachment region () in the interior of the solid body, wherein the modifications () are produced in accordance with predetermined parameters, wherein the predetermined parameters describe a relationship between a deformation of the portion () and a defined further treatment of the portion (), detaching the portion () from the solid body (). 142. A method for separating at least one solid body portion () , in particular a wafer , from a solid body () , comprising at least the following steps:{'b': 2', '18, 'modifying the crystal lattice of the solid body () by means of a modifier (),'}{'b': 19', '8', '2, 'wherein a number of modifications () are produced, to form a non-planar, in particular convex, detachment region () in the interior of the solid body (),'}{'b': 19', '4', '4, 'wherein the modifications () are produced in dependence of predetermined parameters, wherein the predetermined parameters describe a relationship between a deformation of the solid body portion () in dependence of a defined further treatment of the solid body portion (),'}{'b': 4', '2, 'detaching the solid body portion () from the solid body ().'}2. The method according to claim 1 ,characterised in that{'b': 19', '2', '6', '4', '4, 'the modifications () inside the crystal lattice of the solid body () are produced by means of radiation () from at least one laser, in particular a picosecond or femtosecond laser, introduced into the interior of the solid body portion () via an outer surface of the solid body portion ().'}3. The method according to or claim 1 ,characterised in that{'b': 50', '40', '42', '4', '4', '50', '4', '50', '4, 'the further treatment ...

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Номер записи: 6
04-01-2018 дата публикации

MULTI-LASER SYSTEM AND METHOD FOR CUTTING AND POST-CUT PROCESSING HARD DIELECTRIC MATERIALS

Номер: US20180001425A1
Автор: Hannon Mathew, Mendes Marco, SARRAFI Rouzbeh, SCHOENLY Joshua, Sercel Jeffrey P., SOKOL Miroslaw, SONG Xiangyang
Принадлежит:

Laser processing of hard dielectric materials may include cutting a part from a hard dielectric material using a continuous wave laser operating in a quasi-continuous wave (QCW) mode to emit consecutive laser light pulses in a wavelength range of about 1060 nm to 1070 nm. Cutting using a QCW laser may be performed with a lower duty cycle (e.g., between about 1% and 15%) and in an inert gas atmosphere such as nitrogen, argon or helium. Laser processing of hard dielectric materials may further include post-cut processing the cut edges of the part cut from the dielectric material, for example, by beveling and/or polishing the edges to reduce edge defects. The post-cut processing may be performed using a laser beam with different laser parameters than the beam used for cutting, for example, by using a shorter wavelength (e.g., 193 nm excimer laser) and/or a shorter pulse width (e.g., picosecond laser). 1. A method for laser cutting and post-cut processing a part from a hard dielectric material , the method comprising:cutting at least one part from a hard dielectric material using at least a first laser beam, wherein the first laser beam is emitted from a continuous wave laser operating in a quasi-continuous wave (“QCW”) mode so as to emit consecutive pulses of laser light at a wavelength ranging between about 1060 nm and about 1070 nm; andpost-cut processing cut edges of the at least one part using at least a second laser beam to bevel and/or polish the cut edges of the at least one part such that edge defects are reduced.2. The method of wherein the second laser beam is emitted from the continuous wave laser operating in the QCW mode.3. The method of wherein the second laser beam forms an angle of incidence relative to a surface of the cut part claim 1 , wherein the angle of incidence is greater than 0°.4. The method of wherein the second laser beam forms an angle of incidence relative to a surface of the cut part claim 1 , wherein the angle of incidence is in the ...

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Номер записи: 7
05-01-2017 дата публикации

EDGE CHAMFERING METHODS

Номер: US20170001900A1
Автор: Marjanovic Sasha, Pastel David Andrew, Piech Garrett Andrew, Quintal Jose Mario, Schillinger Helmut, Tsuda Sergio, Wagner Robert Stephen, Yeary Andrea Nicole
Принадлежит:

Processes of chamfering and/or beveling an edge of a glass substrate of arbitrary shape using lasers are described herein. Two general methods to produce chamfers on glass substrates are the first method involves cutting the edge with the desired chamfer shape utilizing an ultra-short pulse laser to create perforations within the glass; followed by an ion exchange. 1. A method of chamfering a material comprising:focusing a pulsed laser beam into a laser beam focal line, viewed along the beam propagation direction;directing the laser beam focal line into the material at a first angle of incidence to the material, the laser beam focal line generating an induced absorption within the material, the induced absorption producing a defect line along the laser beam focal line within the material;translating the material and the laser beam relative to each other, thereby laser drilling a plurality of defect lines along a first plane at the first angle within the material;directing the laser beam focal line into the material at a second angle of incidence to the material, the laser beam focal line generating an induced absorption within the material, the induced absorption producing a defect line along the laser beam focal line within the material;translating the material and the laser beam relative to each other, thereby laser drilling a plurality of defect lines along a second plane at the second angle within the material, the second plane intersecting the first plane, andseparating the material along the first plane and the second plane by applying an ion-exchange process to the material, wherein during separating of the material along the first plane and the second plane the ion-exchange process is applied to the material for time t, wherein 10 min≦t≦120 min.2. The method of claim 1 , wherein directing the laser beam focal line into the material at a first angle of incidence to the material is directed to a first surface of the material and directing the laser beam focal ...

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Номер записи: 8
05-01-2017 дата публикации

TEMPERED GLASS ARTICLE WITH SUB-SURFACE LASER ENGRAVING AND PRODUCTION METHOD

Номер: US20170001906A1
Автор: CURDT Axel, KARAGÖZ Hüda
Принадлежит:

A glass article is provided that has sub-surface laser engraving and a prestressing of the surface. A production method for the glass article and the use of the glass article are also provided. The sub-surface laser engraving is arranged in a partial volume of the glass article that is under tensile stress, with tempering of the glass article being performed after the introduction of the sub-surface laser engraving. 1. A glass article comprising:a surface having a compressive stress;an internal region having at least one region of compressive stress and at least one region of tensile stress; anda sub-surface laser engraving arranged in the internal region, wherein the sub-surface laser engraving is arranged in the least least one region of tensile stress.2. The glass article according to claim 1 , wherein the glass article is a thermally tempered article.3. The glass article according to claim 1 , wherein the surface has a compressive stress of at least 50 Mpa.4. The glass article according to claim 1 , wherein the surface has a compressive stress of at least 90 MPa.5. The glass article according to claim 1 , wherein the glass article is a pane with a pane thickness of 2 mm to 12 mm.6. The glass article according to claim 5 , wherein the pane thickness is 4 mm to 6 mm.7. The glass article according to claim 5 , wherein the sub-surface laser engraving is at a minimum distance from the surface of the pane thickness divided by 4.8. The glass article according to claim 5 , wherein the sub-surface laser engraving is at a minimum distance from the surface of the pane thickness divided by 3.9. The glass article according to claim 1 , wherein the sub-surface laser engraving comprises a plurality of defects each having an average size of 10 μm to 1000 μm.10. The glass article according to claim 9 , wherein the average size is 20 μm to 100 μm.11. The glass article according to claim 9 , wherein the plurality of defects together form a feature selected from the group ...

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Номер записи: 9
05-01-2017 дата публикации

Laser Cutting Strengthened Glass

Номер: US20170002601A1
Автор: Howard S. Bergh, Nicolas TIMMERMAN
Принадлежит: Kinestral Technologies Inc

Methods for cutting strengthened glass are disclosed. The methods can include using a laser. The strengthened glass can include chemically strengthened, heat strengthened, and heat tempered glass. Strengthened glass with edges showing indicia of a laser cutting process are also disclosed. The strengthened glass can include an electrochromic film.

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Номер записи: 10
03-01-2019 дата публикации

DEVICE AND METHOD FOR PLACEMENT OF LIGHT SOURCE ON A HEAT SINK

Номер: US20190003695A1
Автор: BLANDIN Jonathan, DUARTE Marc, GUINN Brian, ROUSE Chase
Принадлежит: Valeo North America, Inc.

According to aspects of the disclosed subject matter, a method of placing a solid state light source on a heat sink can include coating a surface of the heat sink with an anodized coating or an e-coating, for example. A portion of the coated surface can be treated via laser ablation for placing the solid state light source. Additionally, the laser ablation parameters can be adjusted to provide a predetermined roughness to the treated portion of the coated surface. 1. A method of treating a heat sink for a light element , comprising:providing a heat sink having a coated surface;treating a mounting region of the coated surface by laser ablation, wherein the mounting region is for placing a light element on the heat sink; andadjusting parameters of the laser ablation treating to adapt the mounting region for mechanical coupling and thermal coupling of the light element to the heat sink.2. The method of claim 1 , wherein the heat sink is aluminum.3. The method of claim 1 , wherein the coated surface of the heat sink includes an anodized coating ranging in thickness from 6 micrometers to 8 micrometers.4. The method of claim 1 , wherein the scale with which laser ablation can treat the anodized surface is in micrometers.5. The method of claim 1 , wherein the predetermined roughness of the treated portion of the anodized surface includes predetermined patterns.6. The method of claim 5 , wherein the adjusting comprises adjusting the laser ablation to provide a predetermined pattern adapted for adhesion of the light element to the heat sink.7. The method of claim 1 , wherein the coated surface includes an anodized coating claim 1 , an e-coating claim 1 , or paint.8. The method of claim 1 , wherein the light element is a solid state light source.9. The method of claim 1 , wherein the laser parameters include marking times claim 1 , marking speed (mm/s) claim 1 , air conditioning speed (mm/s) claim 1 , Q frequency/KHz claim 1 , Q release/second claim 1 , and power (%).10. The ...

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Номер записи: 11
12-01-2017 дата публикации

STEPPED DESIGN WELD JOINT PREPARATION

Номер: US20170008117A1
Автор: PARKER Jonathan David, Siefert John Albert
Принадлежит:

A weld with a stepped configuration is provided. The stepped configuration may be machined from a substrate to form a weld preparation which may accommodate a stepped weld. The weld with a stepped configuration and a controlled procedure exhibits improved service life and improved damage tolerance. A welded joint with a stepped configuration, a joined component with a stepped configuration, and method of welding a stepped configuration are also provided. 1. A weld comprising a plurality of weld preparations having a stepped configuration in a weld zone , and a weld material applied to the weld zone; wherein the at least one weld preparation comprises:a thickness, T;{'sub': 's', 'a depth of step, t;'}a step angle, α; anda step width, w, wherein w is at least about equal to the width of a heat affected zone of the weld.2. The weld of wherein w is at least about 6 mm.3. The weld of wherein the weld material is applied to a joint of the plurality of weld preparations to accommodate a stepped weld joint.4. The weld of wherein at least one weld preparation of the plurality of weld preparations differs compositionally from another weld preparation of the plurality of weld preparations.5. The weld of wherein the plurality of weld preparations and weld material each independently comprise a ferritic material claim 1 , Grade 11 chromium-molybdenum steel claim 1 , Grade 12 chromium-molybdenum steel claim 1 , Grade 22 chromium-molybdenum steel claim 1 , CrMoV chromium-molybdenum steel claim 1 , Grade 23 Creep Strength Enhanced Ferritic Steel claim 1 , Grade 24 Creep Strength Enhanced Ferritic Steel claim 1 , Grade 91 Creep Strength Enhanced Ferritic Steel claim 1 , Grade 911 Creep Strength Enhanced Ferritic Steel claim 1 , Grade 92 Creep Strength Enhanced Ferritic Steel claim 1 , VM12 Creep Strength Enhanced Ferritic Steel claim 1 , Martensitic Microstructure Boron/Nitrogen control steel claim 1 , an austenitic stainless steel claim 1 , Grade 304 stainless steel claim 1 , Grade ...

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Номер записи: 12
12-01-2017 дата публикации

Methods of continuous fabrication of holes in flexible substrate sheets and products relating to the same

Номер: US20170008122A1
Автор: Garrett Andrew Piech, Jeffrey Mathew Clark, John Tyler Keech, Kristopher Allen Wieland
Принадлежит: Corning Inc

Systems and processes of cutting and drilling in a target substrate uses a laser (e.g., a pulsed laser) and an optical system to generate a line focus of the laser beam within the target substrate, such as a glass substrate sheet, are provided. The laser cutting and drilling system and process creates holes or defects that, in certain embodiments, extend the full depth of the glass sheet with each individual laser pulse, and allows the laser system to cut and separate the target substrate into any desired contour by creating a series of perforations that form a contour or desired part shape. Since a glass substrate sheet is brittle, cracking will then follow the perforated contour, allowing the glass substrate sheet to separate into any required shape defined by the perforations.

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Номер записи: 13
12-01-2017 дата публикации

LAP WELDING METHOD, LAP JOINT, PRODUCTION METHOD OF LAP JOINT, AND AN AUTOMOBILE PART

Номер: US20170008124A1
Автор: FUJIMOTO Hiroki, Imamura Takashi, OKADA Tohru
Принадлежит: NIPPON STEEL & SUMITOMO METAL CORPORATION

The present invention has as its object to inhibit fracture due to a HAZ softened part in substantially circular laser lap welding taking the place of resistance spot welding for joining a superposed plurality of steel sheets including a high strength steel sheet. 1. Lap welding method comprising superposing a plurality of steel sheets and firing a laser to form a substantially circular laser weld , which lap welding method firing the laser in a straight line through an outer edge of said substantially circular laser weld so as to form a hardened part at the steel sheets.2. The lap welding method according to wherein said straight line laser firing operation fires the laser in a principal stress direction found in advance.3. The lap welding method according to wherein said straight line laser firing operation fires the laser over at least 3 mm from an outer edge of said substantially circular laser weld.4. The lap welding method according to wherein said “substantially circular” is a circular shape claim 1 , oval shape claim 1 , circular ring shape claim 1 , oval ring shape claim 1 , C-shape claim 1 , long C-shape claim 1 , or multiple circular ring shape.5. The lap welding method according to wherein a fired width of said straight line laser fired part is smaller than a curvature diameter of the part of the outer edge of said substantially circular laser weld through which said laser is fired in a straight line.6. The lap welding method according to wherein at least one steel sheet among said plurality of steel sheets is a steel sheet having a martensite structure.7. The lap welding method according to wherein said steel sheet having a martensite structure is a steel sheet having a tensile strength of 1180 MPa or more.8. A lap joint obtained by superposing a plurality of steel sheets and firing a laser to form substantially circular laser weld so as to join said plurality of steel sheets claim 6 , which lap joint provided with a hardened part formed in a straight ...

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Номер записи: 14
12-01-2017 дата публикации

SYSTEMS AND METHODS FOR FORMING APERTURES IN MICROFEATURE WORKPIECES

Номер: US20170008129A1
Автор: Hiatt William M., Watkins Charles M.
Принадлежит:

Systems and methods for forming apertures in microfeature workpieces are disclosed herein. In one embodiment, a method includes directing a laser beam toward a microfeature workpiece to form an aperture and sensing the laser beam pass through the microfeature workpiece in real time. The method can further include determining a number of pulses of the laser beam and/or an elapsed time to form the aperture and controlling the laser beam based on the determined number of pulses and/or the determined elapsed time to form a second aperture in the microfeature workpiece. 1. A system for forming an aperture in a microfeature workpiece , the system comprising:a laser configured to produce a laser beam along a beam path;an electromagnetic radiation sensor positioned along the beam path to sense the laser beam;a workpiece carrier configured to selectively position the microfeature workpiece in the beam path before the electromagnetic radiation sensor; anda controller operably coupled to the laser, the electromagnetic radiation sensor, and the workpiece carrier, the controller being configured to direct the laser beam toward the microfeature workpiece to form a first aperture, determine the number of laser pulses and/or elapsed time to form the first aperture by sensing when the laser beam passes through the microfeature workpiece in real time using the electromagnetic radiation sensor, move the microfeature workpiece to align the beam path with a location for a second aperture using the workpiece carrier, and direct the laser beam toward the microfeature workpiece to form the second aperture based on the determined number of pulses and/or the determined elapsed time to form the first aperture in the workpiece.2. The system of wherein:the microfeature workpiece includes a first surface and a second surface opposite the first surface; andthe workpiece carrier is configured to carry the microfeature workpiece without contacting a center region of the first surface and a center ...

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Номер записи: 15
12-01-2017 дата публикации

Additive Manufacturing 3D Printing of Advanced Ceramics

Номер: US20170008236A1
Автор: Easter William, Hill Arnold
Принадлежит:

Methods, processes, systems, devices and apparatus are provided for additive manufacture resulting in the 3D printing of novel ceramic composites. Additive manufacture or 3D printing of bulk ceramic and ceramic composite components occurs at considerably lower temperatures and shorter manufacturing intervals than the current state of the art. The methods, processes, systems, devices and apparatus and selection of precursor resins produce ceramic and ceramic composite material systems which have not been produced before by 3D printing. 1. A process for forming a finished green body component , in an additive manufacturing system wherein the green body is converted to a bulk , monolithic ceramic composite , comprising the steps of:selecting a precursor resin;converting the precursor resin to beads;blending the precursor resin beads with a powder selected from at least one of a metal powder, a carbide powder, a ceramic powder and a mixture thereof;depositing a plurality of layers of the polymer precursor resin and powder blend in a bed;spraying each layer with photocurable or thermally curable resins;heating the layers and the entire bead bed with ultraviolet or infrared radiation to cure the resin mixture and form a finished green body component; andremoving the finished green body component to a furnace to convert the green body to a ceramic composite having a thickness in a depth dimension in a range between approximately 200 microns and approximately 25 millimeters (mm).2. The process of claim 1 , wherein the depositing of the plurality of layers of the polymer precursor resin and powder blend is computer controlled.3. The process of claim 1 , wherein the precursor resin is selected from one of a liquid resin and a multiple of different precursor resins.4. The process of claim 1 , wherein the precursor resin is enhanced with a plurality of enhancement particles selected from the group consisting of a metallic powder claim 1 , a ceramic powder claim 1 , graphite ...

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Номер записи: 16
14-01-2016 дата публикации

PROCESSING APPARATUS AND PROCESSING METHOD

Номер: US20160008920A1
Автор: Danno Minoru, FUJITA Yoshihito, Goya Saneyuki, ISHIDE Takashi, KANAOKA Kohei, KINOUCHI Masato, SUZUKI Ryu, WATANABE Toshiya, YAMASAKI Makoto, YAMASHITA Tsugumaru
Принадлежит: MITSUBISHI HEAVY INDUSTRIES, LTD.

A processing apparatus and a processing method which perform processing more accurately with a simple structure are provided. The processing apparatus includes an irradiation head and a control device. The irradiation head includes a laser turning unit and a condensing optical system The laser turning unit includes a first prism a second prism a first rotating mechanism and a second rotating mechanism The control device adjusts the differences between rotation speeds and phase angles of the first prism and the second prism based on a relation between at least a heat affected layer of a workpiece and a turning speed of laser. 1. A processing apparatus which performs processing by irradiating a workpiece with laser , comprising:an irradiation head configured to irradiate the workpiece with the laser and including a laser turning unit which turns the laser relative to the workpiece and a condensing optical system which collects the laser turned by the laser turning unit; anda control device configured to control an operation of the irradiation head, whereinthe laser turning unit includes a first prism which refracts the laser, a second prism which is arranged at a position opposite to the first prism and refracts the laser output from the first prism, a first rotating mechanism which rotates the first prism, and a second rotating mechanism which rotates the second prism, andthe control device controls the first and second rotating mechanisms based on a relation between at least an allowable thickness of a heat affected layer of the workpiece and a turning speed of the laser emitted to the workpiece, and adjusts differences between rotation speeds and phase angles of the first and second prisms.2. The processing apparatus according to claim 1 , whereinthe first rotating mechanism includes a first spindle which holds the first prism and of which a part of the light path of the laser is hollow, and a first hollow motor to which the first spindle is rotatably inserted and ...

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Номер записи: 17
14-01-2016 дата публикации

METHOD OF COLD-CLEAVING SAPPHIRE MATERIAL AT CRYOGENIC TEMPERATURES

Номер: US20160008926A1
Автор: CIRALDO John P.
Принадлежит: RUBICON TECHNOLOGY, INC.

A process for cold cleaving a single-crystal material such as sapphire at cryogenic temperatures includes cooling the single-crystal material to a cryogenic temperature such as, e.g., about the boiling point of nitrogen. The cooled single-crystal material may then be cleaved or divided along a plane of the single-crystal material producing sharp edged portions. 1. A method for dividing a single-crystal material , the method comprising the steps of:cooling the single-crystal material to a cryogenic temperature; andcleaving the single-crystal material to produce at least one sharp-edged portion.2. The method of claim 1 , wherein the cryogenic temperature is less than −150° C.3. The method of claim 1 , wherein the cryogenic temperature is about −196° C.4. The method of claim 1 , wherein the cleaving step comprises cleaving along a plane of the single-crystal material.5. The method of claim 1 , wherein the single-crystal material is sapphire.6. The method of claim 1 , wherein the cleaving step cleaves using a laser.7. The method of claim 1 , wherein the cleaving step cleaves using a cleaving tool.8. The method of claim 1 , further comprising aligning the single-crystal material with respect to a cleaving tool.9. The method of claim 8 , wherein the aligning aligns a plane of the single-crystal material with respect to the cleaving tool.10. The method of claim 1 , wherein the cooling step is computer controlled.11. The method of claim 1 , further comprising determining a plane within the single-crystal material for cleaving along the determined plane.12. The method of claim 11 , wherein the determining step is performed prior to the cooling step.13. A device embodying the single-crystal material produced by the process of .14. A system for dividing a single-crystal material claim 1 , comprising:a mechanism for cooling a single crystal material to a cryogenic temperature;a tool to cleave the cooled single crystal material to produce at least one sharp-edged portion.15. The ...

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Номер записи: 18
14-01-2016 дата публикации

Methods and apparatuses for laser processing materials

Номер: US20160008927A1
Автор: Florian Spaeth, Frank Fabian Herrnberger, Michael Klein, Richard GRUNDMUELLER
Принадлежит: Corning Inc

Methods of laser processing a transparent material are disclosed. The method may include positioning the transparent material on a carrier and transmitting a laser beam through the transparent material, where the laser beam may be incident on a side of the transparent material opposite the carrier. The transparent material may be substantially transparent to the laser beam and the carrier may include a support base and a laser disruption element. The laser disruption element may disrupt the laser beam transmitted through the transparent material such that the laser beam may not have sufficient intensity below the laser disruption element to damage the support base.

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Номер записи: 19
14-01-2016 дата публикации

METHOD OF BUTT-WELDING A COATED STEEL PLATE

Номер: US20160008928A1
Автор: Canourgues Jean-Francois, Ehling Wolfram, Pic Aurelien, Thommes Bernd, Verrier Pascal, Vierstraete Rene
Принадлежит:

A method of butt-welding steel plates is provided. The method includes the steps of coating a first steel plate by dipping the first steel plate in a molten bath to obtain a first precoat upon the first steel plate. The first precoat includes a first intermetallic alloy layer and a first metal alloy layer, the first intermetallic alloy layer is topped by the first metal alloy layer. On a first face of the first steel plate, the first metal alloy layer is removed in a first area at a first periphery of the first steel plate, while at least part of the first intermetallic alloy layer in the first area remains. A second steel plate is coated by dipping the second steel plate in the molten bath or a further molten bath to obtain a second precoat upon the second steel plate. The second precoat includes a second intermetallic alloy layer and a second metal alloy layer, the second intermetallic alloy layer is topped by the second metal alloy layer. On a second face of the second steel plate, the second metal alloy layer is removed in a second area at a second periphery of the second metal plate. While at least part of the second intermetallic alloy layer in the second area remains. After removal of the first and second metal alloy layers, the first periphery of the first steel plate is butt-welded to the second periphery of the second steel plate to form a welded blank. 1. A method of butt-welding steel plates , the method comprising:coating a first steel plate by dipping the first steel plate in a molten bath to obtain a first precoat upon the first steel plate, wherein the first precoat consists of a first intermetallic alloy layer and a first metal alloy layer, wherein the first intermetallic alloy layer is topped by the first metal alloy layer;on a first face of the first steel plate, removing the first metal alloy layer in a first area at a first periphery of the first steel plate, while leaving at least part of the first intermetallic alloy layer in the first area; ...

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Номер записи: 20
12-01-2017 дата публикации

EDGE CHAMFERING BY MECHANICALLY PROCESSING LASER CUT GLASS

Номер: US20170008793A1
Автор: Bankaitis Jonas, Uhlig Kevin William
Принадлежит: CORNING INCORPORATED

Processes of chamfering and/or beveling an edge of a glass substrate of arbitrary shape using lasers are described herein. Two general methods to produce chamfers on glass substrates are the first method involves cutting the edge with the desired chamfer shape utilizing an ultra-short pulse laser that is followed by mechanical polishing with a compliant polishing wheel. 1. A method of processing a workpiece comprising the steps of:(i) focusing a pulsed laser beam into a laser beam focal line, viewed along the beam propagation direction;(ii) directing the laser beam focal line into the workpiece at a first angle of incidence to the workpiece, the first angle intersecting an edge of the workpiece, the laser beam focal line generating an induced absorption within the workpiece, the induced absorption producing a defect line along the laser beam focal line within the workpiece;(ii) translating the workpiece and the laser beam relative to each other, thereby laser drilling a plurality of defect lines along a first plane at the first angle within the workpiece, each of said defect lines having a diameter of not greater than 5 μm; and(iv) separating the workpiece along the plane to create a laser cut workpiece with at least one cut surface; and(v) processing the workpiece by polishing the cut surface of the laser cut workpiece with a polishing wheel, wherein the polishing wheel has a bulk modulus of elasticity of 0.1 GPa to 5 GPa.3. A method of laser processing a glass material comprising:focusing a pulsed laser beam into a laser beam focal line, viewed along the beam propagation direction; andlaser drilling a plurality of defect lines along each of N planes within the material by, for each of the N planes:directing the laser beam focal line into the material at a corresponding angle of incidence to the material, the laser beam focal line generating an induced absorption within the material, the induced absorption producing a defect line along the laser beam focal line ...

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Номер записи: 21
14-01-2016 дата публикации

METHODS AND APPARATUSES FOR FABRICATING GLASS ARTICLES

Номер: US20160009585A1
Автор: Bookbinder Dana Craig, Logunov Stephan Lvovich, Nieber Albert Roth, Tandon Pushkar, Tsuda Sergio
Принадлежит:

Methods of fabricating formed glass articles are described herein. In one embodiment, a method for fabricating a formed glass article may include forming a glass ribbon, forming a parson, and shaping the parson to form a glass article. The glass article may be attached to the glass ribbon at an attachment region defining an edge of the glass article. The process may also include contacting the attachment region with a focal line of a laser beam and separating the glass article from the glass ribbon at the attachment region. The attachment region may be perforated by the laser beam and the focal line may be substantially perpendicular to the plane of the glass ribbon. 1. A method of fabricating a formed glass article , the method comprising:forming a glass ribbon comprising a substantially planar topside and a substantially planar underside;forming a parson comprising glass of the glass ribbon, the parson attached to the glass ribbon at an aperture formed in the glass ribbon, wherein the parson is hollow with an opening at the aperture of the glass ribbon and extends from the underside of the glass ribbon;shaping the parson to form a glass article, the glass article attached to the glass ribbon at an attachment region, the attachment region comprising an area proximate the edges of the aperture, the attachment region defining an edge of the glass article; andcontacting the attachment region with a focal line of a laser beam such that the attachment region is perforated by the laser beam, wherein the focal line is substantially perpendicular to a plane of the glass ribbon; andseparating the glass article from the glass ribbon at the attachment region.2. The method of claim 1 , wherein the formed glass article is a substantially hollow container comprising an opening claim 1 , wherein the opening was the aperture in the glass ribbon.3. The method of claim 1 , wherein the attachment region is cylindrically shaped and defines an outer edge of a mouth of the glass article ...

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Номер записи: 22
14-01-2016 дата публикации

COATED PANE WITH PARTIALLY DE-COATED REGIONS

Номер: US20160009592A1
Автор: Arslan Ilkay, BEHMKE Michael, Droste Stefan, Von Der Weiden Ingo, Wohlfeil Dirk
Принадлежит:

A coated pane with a communication window includes a base pane, a metal-containing coating on the base pane, a grid area made of intersecting, de-coated inner gridlines in the metal-containing coating, wherein the grid area has a grid area edge, and the grid area edge has intersecting outer gridlines, wherein the outer gridlines have interruptions increasing in size from the outer edge of the grid area all the way to the end of the grid surface edge. 1. Coated pane with a communication window comprising:a base pane;a metal-containing coating on the base pane;a grid area made of intersecting, de-coated inner gridlines in the metal-containing coating, wherein the grid area has a grid area edge, andthe grid area edge has intersecting outer gridlines, wherein the outer gridlines have interruptions increasing in size from an outer edge of the grid area all the way to an end of the grid area edge.2. Coated pane according to claim 1 , wherein the outer gridlines include extensions of the inner gridlines.3. Coated pane according to claim 2 , wherein the outer gridlines further include gridlines that are arranged parallel to the outermost grid line bordering the grid area.4. Coated pane according to claim 1 , wherein the gridlines have a width from 30 μm to 200 μm.5. Coated pane according to claim 1 , wherein the gridlines form squares claim 1 , rhombuses claim 1 , parallelograms claim 1 , and/or rectangles.6. Coated pane according to claim 1 , wherein the gridlines are from 0.1 mm to 15 mm apart.7. Coated pane according to claim 1 , wherein the grid area edge has a width from 1 mm to 30 mm.8. Coated pane according to claim 1 , wherein the base pane comprises float glass.9. Coated pane according to claim 8 , wherein the inner gridlines and the outer gridlines have an angle of 30° to 60° relative to the float glass production direction of the base pane.10. Windshield comprising a coated pane according to .11. Method for producing a coated pane with a communication window ...

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Номер записи: 23
11-01-2018 дата публикации

METAL WIRE FEEDING SYSTEM

Номер: US20180009054A1
Автор: FALLA Tom-Erik, FORSETH Trond, RAMSLAND Arne, ROLSTAD Dyre, VIGDAL Brede
Принадлежит:

Provided are a systems and methods for continuously providing a metal wire to a welding torch for manufacturing objects by solid freeform fabrication to provide continuous deposition of metal to the freeform object, especially objects made with titanium or titanium alloy wire. 1. A metal wire feeding system , comprising:a positionally adjustable wire supply spool;a cabinet comprising an entry wire position detector containing an aperture;a wire feeding device comprising a first motorized grooved roller, a first passive grooved roller, and a first motor attached to the first motorized grooved roller, wherein the first motorized grooved roller and the first passive grooved roller form a channel therebetween;a combination of at least three slack wire guides, wherein a first slack wire guide is positioned after the wire feeding device an in line therewith, a second slack wire guide positioned to the right of and below the first slack wire guide, and a third slack wire guide positioned to the left of and below the first slackwire guide;a slack wire pulling device comprising a second motorized grooved roller, a second passive grooved roller, and a second motor attached to the second motorized grooved roller, wherein the second motorized grooved roller and the second passive grooved roller form a channel therebetween; anda cabinet exit guide.2. The metal wire feeding system of claim 1 , where: a first dual grooved roller having a first and second groove, the roller being attached to a first arm pivotally connected to a back plate of the cabinet; and', 'a second dual grooved roller having a first and second groove, where the first groove of the first grooved roller and the first groove of the second grooved roller form a channel therebetween, and the first groove of the first dual grooved roller is biased by a spring on the first arm connected to a first support connected to the back plate of the cabinet;, 'the first slack wire guide comprises a third passive grooved roller ...

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Номер записи: 24
11-01-2018 дата публикации

LASER WELDING OF OVERLAPPING METAL WORKPIECES ASSISTED BY VARYING LASER BEAM PARAMETERS

Номер: US20180009060A1
Автор: Tao Wu, Yang David
Принадлежит:

A method of laser welding a workpiece stack-up that includes at least two overlapping metal workpieces is disclosed. The method includes advancing a beam spot of a laser beam relative to a top surface of the workpiece stack-up and along a beam travel pattern to form a laser weld joint, which is comprised of resolodified composite metal workpiece material, that fusion welds the metal workpieces together. And, while the beam spot is being advanced along the beam travel pattern, between a first point and a second point, which may or may not encompass the entire beam travel pattern, at least one of the following laser beam parameters is repeatedly varied: (1) the power level of the laser beam; (2) the travel speed of the laser beam; or (3) the focal position of the laser beam relative to the top surface of the workpiece stack-up. 1. A method of laser welding a workpiece stack-up that includes at least two overlapping metal workpieces , the method comprising:providing a workpiece stack-up that includes overlapping metal workpieces, the workpiece stack-up comprising at least a first metal workpiece and a second metal workpiece, the first metal workpiece providing a top surface of the workpiece stack-up and the second metal workpiece providing a bottom surface of the workpiece stack-up, wherein a faying interface is established between each pair of adjacent overlapping metal workpieces within the workpiece stack-up;directing a laser beam at the top surface of the workpiece stack-up, the laser beam impinging the top surface and creating a molten metal weld pool that penetrates into the workpiece stack-up from the top surface towards the bottom surface and that intersects each faying interface established within the workpiece stack-up, the laser beam having a beam spot oriented along the top surface of the workpiece stack-up; andforming a laser weld joint that fusion welds the overlapping metal workpieces together by advancing the beam spot relative to the top surface of the ...

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Номер записи: 25
11-01-2018 дата публикации

PACKING BAG AND MANUFACTURING METHOD FOR THE PACKING BAG

Номер: US20180009574A1
Автор: OZAKI Ikuko, TAKASHIRO Takeo
Принадлежит: MUPACK OZAKI CO., LTD.

A packing bag to store a stored article Z with tight seal by a welded sheet material of resin in which a separation-prepared line portion separable by predetermined tensile force F by human hands to take out the stored article Z, is provided along an opening-prepared side portion the sheet material has a layered unit construction in which first and second welding resin layers A and B are disposed on both sides, and a barrier layer is disposed on a middle position, the separation-prepared line portion is composed of a half-cut first laser-worked groove A concaved on the first welding resin layer A and a half-cut second laser-worked groove B concaved on the second welding resin layer B, and, the first and second laser-worked grooves A and B are formed barely damaging the barrier layer 1. A packing bag to store a stored article with tight seal by a welded sheet material of resin comprising a construction in which:{'sup': '-', 'a separation-prepared line portion, separable by predetermined tensile force by human hands to take out the stored article, is provided along an openingprepared side portion;'}the sheet material has a layered unit construction in which first and second welding resin layers are disposed on both sides, and a barrier layer is disposed on a middle position;the separation-prepared line portion is composed of a half-cut first laser-worked groove concaved on the first welding resin layer and a half-cut second laser-worked groove concaved on the second welding resin layer; andthe first and second laser-worked grooves are formed barely damaging the barrier layer.2. The packing bag as set forth in claim 1 , wherein at least one of the first laser-worked groove and the second laser-worked groove is formed concavo-convex wave.3. A manufacturing method of packing bag to make a packing bag having a separation-prepared line portion claim 1 , separable by predetermined tensile force by human hands claim 1 , along an opening-prepared side portion claim 1 , ...

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Номер записи: 26
11-01-2018 дата публикации

Self-aligned spatial filter

Номер: US20180011335A1
Автор: Michael Yagoda SHAGAM, Robert Joseph WALTERS
Принадлежит: Integrated Plasmonics Corp

A spatial filter is made by forming a structure comprising a focusing element and an opaque surface, the opaque surface being disposed remotely from the focusing element in substantially the same plane as a focal plane of the focusing element; and by forming a pinhole in the opaque surface at or adjacent to a focal point of the focusing element by transmitting a substantially collimated laser beam through the focusing element so that a point optimally corresponding to the focal point is identified on the opaque surface and imperfection of the focusing element, if any, is reflected on the shape and position of the pinhole so formed.

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Номер записи: 27
10-01-2019 дата публикации

Method of Manufacturing Actively Cooled Accelerator Grid with Full Penetration Weld Configuration

Номер: US20190011188A1
Автор: Chakraborty Arunkumar, Joshi Jaydeep, Rotti Chandramouli
Принадлежит:

Disclosed is an improved method of manufacturing cooled accelerator grid with full penetration weld configuration. In a preferred form, the method includes the steps of: machining a plurality of stubs, a first and a second end of a plurality of inconel pipes; welding the stubs with the first end of the inconel pipes forming a water connector assembly; machining of a base plate; welding the base plate with the water connector assembly; machining the base plate welded with the water connector assembly, wherein machining further comprises milling of plurality of cooling channels across angled plane of the base plate welded with the water connector assembly; closing of plurality of cooling channels located on the base plate welded with the water connector assembly; and welding each of plurality of external hydraulic circuits with the second end of each of the plurality of inconel pipes. 1. A method of manufacturing actively cooled accelerator grid with full penetration weld configuration comprising the steps of:a) machining a plurality of stubs;b) machining a first end and a second end of each of a plurality of inconel pipes;c) welding each of the plurality of the stubs with the first end of the each of the plurality of inconel pipes, thereby forming a water connector assembly;d) machining a base plate to prepare a plurality of weld edges in ‘U’ shape in accordance to a plurality of reference holes located on the base plate;e) full penetration welding of the base plate with the water connector assembly by electron beam welding;f) machining the base plate welded with the water connector assembly to create a hydraulic passage up to the manifold, wherein machining further comprises milling of a plurality of cooling channels across angled plane of the base plate welded with the water connector assembly;g) welding each of a plurality of external hydraulic circuits with the second end of the each of the plurality of inconel pipes.2. The method as claimed in claim 1 , wherein ...

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Номер записи: 28
12-01-2017 дата публикации

WAFER PROCESSING METHOD

Номер: US20170011965A1
Автор: Nakamura Masaru
Принадлежит:

There is provided a wafer processing method including a modified layer forming step. In the wafer processing method, the power of a pulse laser beam set in the modified layer forming step is set to power that forms modified layers and cracks in such a manner that a wafer is allowed to be divided into individual device chips before the thickness of the wafer reaches a finished thickness and, after the wafer is divided into the individual device chips, the time until the thickness of the wafer reaches the finished thickness is such a time that damage due to rubbing of the individual device chips against each other is not caused through grinding under a predetermined grinding condition set in a back surface grinding step. 1a protective member disposing step of disposing a protective member on the front surface of the wafer;a modified layer forming step of positioning a light focus point of a pulse laser beam having such a wavelength as to be transmitted through the wafer on which the protective member is disposed at inside of the wafer along the planned dividing lines and irradiating the wafer with the pulse laser beam with predetermined power to form modified layers and cracks extending from the modified layers toward the front surface and a back surface; anda back surface grinding step of, after carrying out the modified layer forming step, holding a side of the protective member on a chuck table and grinding the back surface of the wafer by a grinding wheel under a predetermined grinding condition to divide the wafer into the individual device chips and carrying out grinding until the modified layers are removed and thickness of the wafer reaches a target finished thickness,wherein the predetermined power of the pulse laser beam set in the modified layer forming step is set to power that forms the modified layers and the cracks in such a manner that the wafer is allowed to be divided into the individual device chips before the thickness of the wafer reaches the ...

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Номер записи: 29
12-01-2017 дата публикации

CUTTING METHOD

Номер: US20170012262A1
Автор: LANCIOTTI Claudio, LIBERATI Marco, Sale Massimiliano, Vivarelli Marco
Принадлежит: MANZ ITALY S.R.L.

A cutting method is disclosed for cutting a continuous separator sheet material in a cutting zone comprised between two non-rectangular electrodes using a laser arrangement of solid state type, executing on the material a first cutting line that is then intersected by a second cutting line at an intersection point located in an intermediate portion of the first cutting line, with an intersection direction that is perpendicular to the first cutting line at the intersection point. 116.-. (canceled)17. Cutting method comprising the step of cutting with a laser arrangement at least one continuous sheet material of separator for electrodes , performing at least two distinct cutting lines in which a first cutting line is intersected by a second cutting line at an intersection point.18. Method according to claim 17 , wherein said first cutting line is intersected by said second cutting line with an intersection direction that is transverse to the first cutting line at said intersection point.19. Method according to claim 18 , wherein said intersection direction is perpendicular claim 18 , or almost perpendicular claim 18 , to said first cutting line in said intersection point.20. Method according to claim 17 , wherein said second cutting line is made after said first cutting line claim 17 , at least at said intersection point.21. Method according to claim 17 , wherein said second cutting line continues beyond said intersection point to ensure detachment of the material at said intersection point.22. Method according to claim 17 , wherein said intersection point is an intermediate point of said first cutting line.23. Method according to claim 17 , wherein said at least two cutting lines are made in a zone comprised between two non-rectangular electrodes applied to said continuous sheet material.24. Method according to claim 23 , comprising the step of coupling said electrodes with said continuous separator sheet material by lamination claim 23 , said coupling step preceding ...

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Номер записи: 30
15-01-2015 дата публикации

METHOD FOR BONDING A TANTALUM STRUCTURE TO A COBALT-ALLOY SUBSTRATE

Номер: US20150014397A1
Автор: Allen Steve M., Anderson Jeffrey P., Gorhe Devendra, Harmon Casey, Hippensteel Gregory M., Miller David M., Panchison Clarence M., Peek Lawrence F., Scrafton Joel G.
Принадлежит:

Methods for bonding a porous tantalum structure to a substrate are provided. The method includes placing a compressible or porous interlayer between a porous tantalum structure and a cobalt or cobalt-chromium substrate to form an assembly. The interlayer comprising a metal or metal alloy that has solid state solubility with both the substrate and the porous tantalum structure. Heat and pressure are applied to the assembly to achieve solid state diffusion between the substrate and the interlayer and the between the porous tantalum structure and the interlayer. 1. (canceled)2. A method of bonding , comprising:providing a substrate comprising cobalt or cobalt-chromium;providing a subassembly that includes a porous tantalum structure with a compressible interlayer formed on a surface portion of the porous tantalum structure, said compressible interlayer having a porosity of between 5% and 40% and consisting essentially of interconnected metal or metal alloy particles that exhibit solid solubility with tantalum and with cobalt or cobalt-chromium, said interconnected metal or metal alloy particles defining collapsible pores therebetween;bending the subassembly from a first configuration to a second configuration;forming an assembly which includes placing an exposed surface of the compressible interlayer in contact with the substrate after said bending; andapplying heat and pressure to the assembly for a time sufficient to achieve solid-state diffusion between the substrate and the compressible interlayer and between the compressible interlayer and the porous tantalum structure.3. The method of claim 2 , wherein the compressible interlayer has a substantially uniform thickness before said bending.4. The method of claim 2 , wherein said applying heat and pressure to the assembly includes compressing a portion of the compressible interlayer from a first thickness to a second claim 2 , reduced thickness.5. The method of claim 2 , wherein said applying heat and pressure to the ...

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Номер записи: 31
19-01-2017 дата публикации

LASER-PRODUCED POROUS STRUCTURE

Номер: US20170014235A1
Автор: Jones Eric, Stamp Robin, Sutcliffe Christopher J.
Принадлежит:

The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant. 1. A method of producing a three-dimensional porous tissue in-growth structure comprising the steps of:depositing a first layer of a powder made from a metal selected from the group consisting of titanium, titanium alloys, stainless steel, cobalt chrome alloys, tantalum and niobium onto a substrate; andscanning a laser beam having a power (P) for a period of time (μsec) with a point distance (μm), to form a portion of a plurality of predetermined unit cells within said metal powder layer.2. The method of producing a three-dimensional porous tissue in-growth structure according to claim 1 , further comprising depositing at least one additional layer of said powder onto said first layer and repeating the step of scanning a laser beam for at least one of said deposited layers in order to continuing forming said predetermined unit cells.3. The method of producing a three-dimensional porous tissue in-growth structure according to claim 1 , wherein at least some of said predetermined unit cells are a tetrahedron.4. The method of producing a three-dimensional porous tissue in-growth structure according to claim 1 , wherein at least some of said predetermined unit cells are a dodecahedron.5. The method of producing a three-dimensional porous tissue in-growth structure according to claim 1 , wherein at least some of said predetermined unit cells are ...

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Номер записи: 32
19-01-2017 дата публикации

POLYMERIC STENT AND METHODS OF MANUFACTURING THE SAME

Номер: US20170014251A1
Автор: Kim Hyung-Il
Принадлежит:

Methods of manufacturing polymeric stents by forming a pattern on a polylactic acid tube using a second harmonic generator laser and polylactic acid polymeric stents having a pattern formed using a second harmonic generator laser. 113.-. (canceled)15. The polymeric stent of claim 14 , wherein the polydispersity index of the polymeric stent after the pattern is cut on the polylactic acid tube claim 14 , is 1 to 2. This application claims priority to and the benefit of Korean Patent Application No. 10-2014-0022859 filed in the Korean Intellectual Property Office on Feb. 26, 2014, the entire contents of which are incorporated herein by reference.The field of the invention relates to polymeric stents, and in particular methods of manufacturing such devices.In general, stents are expandable medical prostheses, and are used within body vessels of humans for a variety of medical applications. Examples include intravascular stents for treating stenosis, and stents for maintaining openings in the urinary, biliary, tracheobronchial, esophageal, and renal tracts, and inferior vena cava.Typically, prior to placement, a stent will be maintained in a compressed state and delivered by a device designed to position the compressed stent at a treatment site, and then allow the stent to expand once in position. Commonly, stents are delivered to the treatment site by passage through the lumen of body vessels.For example, in percutaneous transluminal angioplasty, an implantable endoprosthesis, that is, a stent is introduced through a delivery device, and is passed through body vessel conduits to a treatment site. After the stent approaches the treatment site, the stent is typically mechanically expanded, usually with the aid of an inflatable balloon, thereby being expanded within the body vessel. The delivery device is then retreated and removed from the patient. The stent remains within the vessel at the treatment site as an implant.Various objects, features, aspects and advantages of ...

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Номер записи: 33
14-01-2016 дата публикации

FUSION BONDED LIQUID CRYSTAL POLYMER CIRCUIT STRUCTURE

Номер: US20160014908A1
Автор: Rathburn James
Принадлежит:

A method of making a multilayered, fusion bonded circuit structure. A first circuitry layer is attached to a first major surface of a first LCP substrate. A plurality of first recesses are formed that extend from a second major surface of the first substrate to the first circuitry layer. The first recesses are then plated to form a plurality of first conductive pillars of solid metal that substantially fill the first recesses. A plurality of second recesses are formed in a second LCP substrate corresponding to a plurality of the first conductive pillars. The second recess are plated to form a plurality of second conductive structures that extend between first and second major surfaces of the second substrate. The second major surface of the first substrate is positioned adjacent to the second major surface of the second substrate. The first conductive pillars are aligned with the second conductive structures. The stack is then fusion bonded to mechanically couple the first conductive pillars to the second conductive structures. 1. A method of making a multilayered , fusion bonded circuit structure comprising the step of:attaching a first circuitry layer to a first major surface of a first LCP substrate;forming a plurality of first recesses extending from a second major surface of the first substrate to the first circuitry layer;plating the first recesses to form a plurality of first conductive pillars of solid metal that substantially fill the first recesses, the first conductive pillars extending above the first circuitry layer;forming a plurality of second recesses in a second LCP substrate corresponding to a plurality of the first conductive pillars;plating the second recesses to form a plurality of second conductive structures that extend between first and second major surfaces of the second substrate;positioning the second major surface of the first substrate adjacent to the second major surface of the second substrate;aligning the first conductive pillars with ...

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Номер записи: 34
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: 35
19-01-2017 дата публикации

ACTIVE METAL BRAZE JOINT WITH STRESS RELIEVING LAYER

Номер: US20170014930A1
Автор: EASLEY Thomas
Принадлежит: DIAMOND INNOVATIONS, INC.

The present disclosure relates to a brazed superabrasive assemblies and method of producing brazed superabrasive assemblies. The brazed superabrasive assemblies may include a plurality of braze alloy layers that are positioned opposite a stress relieving layer. The stress relieving layer may have a solidus temperature that is greater than a solidus temperature of the plurality of braze alloy layers. 1. A brazed superabrasive assembly , comprising:a superabrasive layer;a stress relieving layer coupled to the superabrasive layer by a first braze layer; anda substrate coupled to the stress relieving layer by a last braze layer, wherein the stress relieving layer has a solidus or melting temperature that is greater than a solidus temperature of the first braze layer and the last braze layer.2. The brazed superabrasive assembly of claim 1 , wherein the stress relieving layer comprises copper or a copper alloy.3. The brazed superabrasive assembly of claim 1 , wherein the stress relieving layer comprises nickel or a nickel alloy.4. The brazed superabrasive assembly of any of - claim 1 , wherein the first braze layer comprises a refractory metal or a refractory metal alloy that is positioned between the superabrasive layer and the stress relieving layer.5. The brazed superabrasive assembly of any of - claim 1 , further comprising a carbide layer claim 1 , wherein the carbide layer is positioned between a first diamond-containing material and the first braze layer.6. The brazed superabrasive assembly of claim 5 , wherein the carbide layer comprises a carbide of a refractory metal.7. The brazed superabrasive assembly of any of - claim 5 , wherein the refractory metal comprises at least one of tungsten claim 5 , titanium claim 5 , niobium claim 5 , zirconium claim 5 , tantalum claim 5 , vanadium claim 5 , chromium claim 5 , molybdenum claim 5 , or an alloy or composite thereof.8. The brazed superabrasive assembly of any of - claim 5 , wherein the first braze layer and the ...

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Номер записи: 36
19-01-2017 дата публикации

INERT GAS AND METHOD OF METAL INERT-GAS WELDING FOR POLLUTANT REDUCTION

Номер: US20170014935A1
Автор: Miklos Ernst, Savgu Faith
Принадлежит:

A method of metal inert-gas welding is proposed, a method in which a welding filler () is fed to a welding torch () and a welding current of a welding current source () is applied via a welding current connection (), whereby an arc () is formed and, in a welding region, material of the welding filler () is transferred to a workpiece () consisting at least in the welding region of an alloyed high-grade steel. By means of the welding torch (), an inert gas that includes a content of 0.5 to 3.0 percent by volume of at least one oxidizing component and a content of 0.1 to below 0.5 percent by volume of hydrogen is fed to the welding region. A method of reducing the content of nickel oxides and chromium (VI) compounds in welding fumes of such a welding method, a corresponding inert gas and the use of a gas mixture as an inert gas are likewise the subject of the present invention. 1. A method for metal inert gas welding , in which a weld filler is fed to a welding torch and via a welding current connection is subjected to a welding current of a welding current source , as a result of which an arc is formed and material of the weld filler in a welding region is transmitted onto a work piece which at least in the welding region consists of alloyed stainless steel and an inert gas is fed to the welding region by means of the welding torch , which inert gas has a content of 0.5 to 3.0% by volume of at least one oxidising component , characterized in that the inert gas additionally has a content of 0.1 to below 0.5% by volume of hydrogen.2. The welding method according to claim 1 , in which the inert gas has a content of 1.2 to 2.5% by volume of the at least one oxidising component.3. The welding method according to claim 1 , in which the inert gas has a content of 0.5 to 0.4% by volume of hydrogen.4. The welding method according to claim 1 , in which the inert gas in the remaining proportion contains argon and/or helium.5. The welding method according to claim 1 , in which a ...

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Номер записи: 37
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: 38
19-01-2017 дата публикации

METHOD FOR PRODUCING METAL LAMINATE MATERIAL

Номер: US20170014941A1
Автор: Koshiro Takashi, Kurokawa Teppei, Nanbu Kouji, Okayama Hironao
Принадлежит: TOYO KOHAN CO., LTD.

An object of the present invention is to provide a production method for efficiently producing a metal laminate having high bonding strength. A method for producing a metal laminate material comprising the steps of: sputter etching faces to be bonded of a stainless steel and an aluminum such that an oxide layer remains on each face; temporarily bonding the faces to be bonded of the stainless steel and the aluminum by roll pressure bonding; and thermally treating the temporarily bonded laminate material at a temperature lower than the recrystallization temperature of the stainless steel to thermally diffuse at least a metal element comprised in the stainless steel into the aluminum. 1. A method for producing a metal laminate material comprising the steps of:sputter etching faces to be bonded of a stainless steel and an aluminum such that an oxide layer remains on each face;temporarily bonding the faces to be bonded of the stainless steel and the aluminum by roll pressure bonding, andthermally treating the temporarily bonded laminate material at a temperature lower than the recrystallization temperature of the stainless steel to thermally diffuse at least a metal element comprised in the stainless steel into the aluminum.2. The method for producing a metal laminate material according to claim 1 , wherein claim 1 , in the thermally diffusing step claim 1 , 8 atm % or more of at least Fe element comprised in the stainless steel is diffused at a point 5 nm in the aluminum direction from the bonding interface.3. The method for producing a metal laminate material according to claim 1 , wherein the thermally diffusing step comprises thermally treating the temporarily bonded laminate material at a temperature lower than the recrystallization temperature of the stainless steel to thermally diffuse the metal element comprised in the stainless steel and the aluminum to each other.4. The method for producing a metal laminate material according to claim 1 , wherein the thermal ...

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Номер записи: 39
19-01-2017 дата публикации

METHOD FOR PRODUCING METAL LAMINATE MATERIAL

Номер: US20170014942A1
Автор: Koshiro Takashi, Kurokawa Teppei, Nanbu Kouji, Okayama Hironao
Принадлежит: TOYO KOHAN CO., LTD.

An object of the present invention is to provide a method for producing a metal laminate material that maintains sufficient bonding strength and has superior production efficiency. A method for producing a metal laminate material by bonding two sheets, one sheet composed of a material M1 and the other sheet composed of a material M2, wherein each of M1 and M2 is a metal or alloy comprising any one or more selected from the group consisting of Mg, Al, Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Nb, Mo, Pd, Ag, In, Sn, Hf, Ta, W, Pb, and Bi, comprises the steps of subjecting the faces of the two sheets to be bonded to sputtering treatment with inert gas ions under vacuum such that oxide layers on surface layers remain; temporarily bonding the two sheets by roll pressure bonding; and conducting a thermal treatment to thereby bond the two sheets, and, when Tm1>Tm2 where Tm1 (K) is the melting point of M1 and Tm2(K) is the melting point of M2, the temperature of the thermal treatment is 0.45Tm2 or more and less than 0.45Tm1, provided that the temperature is not more than Tm2. 1. A method for producing a metal laminate material bonding two sheets , one sheet composed of a material M1 and the other sheet composed of a material M2 , each of M1 and M2 being a metal or alloy comprising any one or more selected from the group consisting of Mg , Al , Ti , Cr , Mn , Fe , Co , Ni , Cu , Zn , Nb , Mo , Pd , Ag , In , Sn , Hf , Ta , W , Pb , and Bi , wherein the method comprises the steps of:subjecting the faces to be bonded of the two sheets to sputtering treatment with inert gas ions under vacuum such that oxide layers on surface layers remain;temporarily bonding the two sheets by roll pressure bonding; andconducting a thermal treatment to thereby bond the two sheets; andwherein, when Tm1>Tm2 where Tm1 (K) is the melting point of M1 and Tm2(K) is the melting point of M2, the temperature of the thermal treatment is 0.45Tm2 or more and less than 0.45Tm1, provided that the temperature is not ...

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Номер записи: 40
19-01-2017 дата публикации

POLYCRYSTALLINE SiC WAFER PRODUCING METHOD

Номер: US20170014944A1
Автор: Hirata Kazuya, Nishino Yoko
Принадлежит:

There is provided a polycrystalline SiC wafer producing method. In this method, in a modified layer forming step for forming an interface for producing a polycrystalline SiC wafer from a polycrystalline SiC ingot, the formed interface is a surface formed by linking of modified layers formed in such a manner that an initial modified layer is formed through splitting of polycrystalline SiC into amorphous silicon and amorphous carbon at the light focus point of a pulse laser beam and then polycrystalline SiC splits into amorphous silicon and amorphous carbon at a position at which the power density is constant with absorption of the continuously-emitted pulse laser beam by amorphous carbon formed in advance. 1. A polycrystalline SiC wafer producing method for producing a polycrystalline SiC wafer from a polycrystalline SiC ingot , the method comprising:a modified layer forming step of positioning a light focus point of a pulse laser beam having such a wavelength as to be transmitted through the polycrystalline SiC ingot at a predetermined position from an irradiated surface of the polycrystalline SiC ingot and irradiating the polycrystalline SiC ingot with the pulse laser beam to form modified layers at a position at which an interface between the polycrystalline SiC wafer and the polycrystalline SiC ingot is to be formed; anda polycrystalline SiC wafer separating step of giving an external force to an upper side relative to the interface formed by the modified layer forming step and separating the polycrystalline SiC wafer from the interface,wherein the interface formed in the modified layer forming step is a surface formed by linking of modified layers formed in such a manner that an initial modified layer is formed through splitting of polycrystalline SiC into amorphous silicon and amorphous carbon at the light focus point of the pulse laser beam, the pulse laser beam emitted next is absorbed by the amorphous carbon formed by the pulse laser beam emitted in advance ...

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Номер записи: 41
19-01-2017 дата публикации

LASER ABLATION METHOD FOR TREATING A COPPER ALLOY CONTAINING METALLIC SURFACE AND INCREASING HYDROPHOBICITY

Номер: US20170014946A1
Автор: ALI Haider, YILBAS Bekir Sami
Принадлежит: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

A method of treating a metallic surface comprising a copper alloy, such as phosphor bronze, whereby the metallic surface is ablated by directing a laser beam with a diameter of 200-400 μm produced by a COlaser with a pulse frequency of 1200-1800 HZ onto the metallic surface, and a Nassist gas is concurrently applied with a pressure of 550-650 KPa co-axially with the laser beam to form an ablated metallic surface comprising microgrooves with CuN present on a surface of the microgrooves, wherein the ablated metallic surface has a higher surface hydrophobicity than the metallic surface prior to the ablating. 1: A method of treating a metallic surface comprising a copper alloy , comprising:{'sub': '2', 'ablating the metallic surface by directing a laser beam with a diameter of 100-400 μm produced by a COlaser with a pulse frequency of 1200-1800 Hz onto the metallic surface; and'}{'sub': 2', '3, 'concurrently exposing the metallic surface to a Nassist gas with a pressure of 550-650 KPa to form an ablated metallic surface comprising microgrooves with CuN present on a surface of the microgrooves;'}{'sub': '2', 'wherein the Nassist gas and the laser beam are oriented coaxially; and'}wherein the ablated metallic surface has a higher surface hydrophobicity than the metallic surface prior to the ablating.2: The method of claim 1 , wherein the copper alloy is phosphor bronze.3: The method of claim 1 , wherein the metallic surface is ablated with a laser beam having a power in the range of 1.5-2.5 kW.4: The method of claim 1 , wherein the metallic surface is ablated with a laser beam with a scanning speed in the range of 0.05-0.15 m·s.5: The method of claim 1 , wherein the ablating and concurrently exposing is performed such that laser scanning tracks are formed on the metallic surface and the overlapping ratio of the laser scanning tracks is in the range of 60-80% at the metallic surface6: The method of claim 1 , wherein the metallic surface is ablated with a laser beam to a ...

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Номер записи: 42
19-01-2017 дата публикации

LASER PROCESSING APPARATUS

Номер: US20170014947A1
Автор: Iwamoto Taku, Koerwer Joel, Nehashi Kouichi, Odagiri Wataru, ODANAKA Kentaro, Ohkubo Hironari, TSUKIJI Shuichiro
Принадлежит:

A laser beam irradiation unit of laser processing apparatus includes a pulse laser beam oscillating unit, a condenser that condenses a pulse laser beam and emits the beam to a workpiece held by a chuck table, a dichroic mirror disposed between the pulse laser beam oscillating unit and the condenser, a strobe light irradiation unit that emits light to a path on which the dichroic mirror and the condenser are disposed, a beam splitter disposed between the strobe light irradiation unit and the dichroic mirror, and an imaging unit disposed on the path of light split by the beam splitter. A controller actuates the strobe light irradiation unit and the imaging unit according to the timing of the pulse laser beam, and detects the width of a laser-processed groove immediately after emission of the pulse laser beam on the basis of an image signal from the imaging unit. 1. A laser processing apparatus comprising:a chuck table that holds a workpiece;laser beam irradiating means that irradiates the workpiece held by the chuck table with a pulse laser beam;X-axis direction moving means that moves the chuck table and the laser beam irradiating means relatively in an X-axis direction that is a processing feed direction;Y-axis direction moving means that moves the chuck table and the laser beam irradiating means relatively in a Y-axis direction that is an indexing feed direction orthogonal to the X-axis direction; andcontrol means that controls the laser beam irradiating means, the X-axis direction moving means, and the Y-axis direction moving means, pulse laser beam oscillating means that oscillates the pulse laser beam,', 'a condenser that condenses the pulse laser beam oscillated from the pulse laser beam oscillating means and emits the pulse laser beam to the workpiece held by the chuck table,', 'a dichroic mirror that is disposed between the pulse laser beam oscillating means and the condenser and reflects the pulse laser beam oscillated from the pulse laser beam oscillating ...

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Номер записи: 43
19-01-2017 дата публикации

SYSTEMS AND METHODS FOR DISSIMILAR MATERIAL WELDING

Номер: US20170014952A1
Автор: Bogue William, Pelletier Carl E.
Принадлежит: UNITED TECHNOLOGIES CORPORATION

A system is provided comprising a hardened stud body and an unhardened stud subunit coupled to the hardened stud body. The hardened stud body may comprise a first composition having by weight between 17% and 21% chromium, between 2.8% and 3.3% molybdenum, between 50% to 55% nickel, and between 4.75% and 5.5% niobium. The unhardened stud subunit may comprise a second composition having by weight between 20% and 23% chromium, between 8% and 10% molybdenum, at least 58% nickel, and between 3.15% and 4.15% niobium. 1. A system comprising:a hardened stud body; andan unhardened stud subunit coupled to the hardened stud body.2. The system of claim 1 , wherein the hardened stud body comprises a first composition having by weight between 17% and 21% chromium claim 1 , between 2.8% and 3.3% molybdenum claim 1 , between 50% to 55% nickel claim 1 , and between 4.75% and 5.5% niobium.3. The system of claim 2 , wherein the unhardened stud subunit comprises a second composition having by weight between 20% and 23% chromium claim 2 , between 8% and 10% molybdenum claim 2 , at least 58% nickel claim 2 , and between 3.15% and 4.15% niobium.4. The system of claim 2 , wherein the first composition conforms to ASTM A1014/A1014M.5. The system of claim 3 , wherein the second composition conforms to ASTM B444.6. The system of claim 1 , wherein the hardened stud body is formed from an unhardened stud body and the unhardened stud subunit is coupled to the unhardened stud body.7. The system of claim 6 , wherein the unhardened stud body undergoes a heat treatment to become the hardened stud body.8. The system of claim 6 , wherein the unhardened stud subunit is at least one of friction welded claim 6 , inertia bonded claim 6 , explosive welded claim 6 , resistance welded claim 6 , laser welded claim 6 , gas tungsten arc welded claim 6 , or brazed to an unhardened stud body.9. The system of claim 3 , wherein the unhardened stud subunit is coupled to a substrate.10. The system of claim 9 , ...

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Номер записи: 44
15-01-2015 дата публикации

BRAZING METHOD OF ALUMINUM MATERIAL AND BRAZED STRUCTURE

Номер: US20150017470A1
Автор: Akiyama Masatoshi, AMANO Hiroki, EDO Masakazu, MIYAKE Hideyuki, Nomura Yuji, Nose Norihiro
Принадлежит:

In order to enable a satisfactory fluxless brazing without needing flux or vacuum facilities, a brazing object including an aluminum alloy material provided with an Al—Si—Mg brazing filler metal is joined by the Al—Si—Mg brazing filler metal without the use of flux by heating the aluminum alloy material, when raising the temperature in a brazing furnace, at least in a temperature range of 450° C. to before melting of the filler metal under a first inert gas atmosphere having an oxygen concentration of preferably 50 ppm and following by heating at least at or above a temperature at which the filler metal starts to melt under a second inert gas atmosphere having an oxygen concentration of preferably 25 ppm and a nitrogen gas concentration of preferably 10% by volume or less. The oxygen concentration and nitrogen concentration in the atmosphere in the course of brazing are controlled in this way, whereby the reliability of a joint is remarkably improved, compared with conventional fluxless brazing methods, while suppressing cost increases as much as possible. 1. A brazing method of aluminum material , comprising: joining a brazing object including an aluminum alloy material provided with an Al—Si—Mg brazing filler metal by the Al—Si—Mg brazing filler metal without the use of flux by heating , when raising the temperature in a brazing furnace , the aluminum alloy material at least in a temperature range of 450° C. to before melting of the filler metal under a first inert gas atmosphere having an oxygen concentration of a first predetermined value and following by heating at least at or above a temperature at which the filler metal starts to melt under a second inert gas atmosphere having an oxygen concentration of a second predetermined value lower than the first predetermined value and a nitrogen gas atmosphere of a predetermined concentration or less.2. The brazing method of aluminum material according to claim 1 , wherein the Al—Si—Mg brazing filler metal and the ...

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Номер записи: 45
18-01-2018 дата публикации

TITANIUM CAST PRODUCT FOR HOT ROLLING UNLIKELY TO EXHIBIT SURFACE DEFECTS AND METHOD OF MANUFACTURING THE SAME

Номер: US20180015535A1
Автор: Fujii Hideki, Kunieda Tomonori, TATSUZAWA Yoshitsugu
Принадлежит: NIPPON STEEL & SUMITOMO METAL CORPORATION

Provided is a titanium cast product for hot rolling made of a titanium alloy, the titanium cast product including a melted and resolidified layer in a range of more than or equal to 1 mm in depth on a surface serving as a rolling surface, the melted and resolidified layer being obtained by adding one or more elements out of any one of or both of at least one α stabilizer element and at least one neutral element to the surface, and melting and resolidifying the surface. An average value of a total concentration of at least one α stabilizer element and at least one neutral element in the range of more than or equal to 1 mm in depth is higher than a total concentration of at least one α stabilizer element and at least one neutral element in a base metal by, in mass %, more than or equal to 0.1% and less than 2.0%. 18.-. (canceled)9. A titanium cast product made of a titanium alloy , the titanium cast product comprising:a layer in a range of more than or equal to 1 mm in depth on a surface serving as a rolling surface, the layer containing one or more elements out of any one of or both of at least one α stabilizer element and at least one neutral element,wherein a total concentration of at least one α stabilizer element and at least one neutral element in the range of more than or equal to 1 mm in depth is higher than a total concentration of at least one α stabilizer element and at least one neutral element in a base metal by, in mass %, more than or equal to 0.1% and less than 2.0%.10. The titanium cast product according to claim 9 ,wherein the at least one α stabilizer element and the at least one neutral element each include Al, Sn, and Zr.11. The titanium cast product according to claim 9 ,wherein the layer containing one or more elements out of any one of or both of at least one α stabilizer element and at least one neutral element further contains, in mass %, less than or equal to 1.5% of one or more β stabilizer elements.12. A method of manufacturing a titanium ...

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Номер записи: 46
18-01-2018 дата публикации

JOINING METHOD

Номер: US20180015568A1
Автор: Sato Shigeru
Принадлежит: ULTEX CORPORATION

[Solving Means] 1. Joining method for joining a plurality of members to be joined composed of metals or materials different in kind from each other which are metal and such an inorganic substance as ceramics , the plurality of members to be joined being put in a state stacked up and down , wherein an inside space portion having a slope is provided in the other member to be joined of the plurality of members to be joined so as to be opened upward or downward , one member to be joined of the plurality of members to be joined is received in the inside space portion from the opening of the other member to be joined , and in a state where an outer peripheral portion of an end portion of the one member to be joined received in the inside space portion is supported by the slope , the outer peripheral portion of the one member to be joined and the slope of the other member to be joined are joined to each other while a vertical load and vibration in a vertical direction due to acoustic wave vibration or ultrasonic wave vibration are cooperating with each other.2. The joining method according to claim 1 , wherein the inside space portion is composed of an upper space portion claim 1 , an intermediate space portion claim 1 , and a lower space portion claim 1 , the upper space portion claim 1 , the intermediate space portion claim 1 , and the lower space portion are configured so as to continue coaxially from the top to the bottom of the other member to be joined claim 1 , the upper space portion has a cylindrical shape where the upper space portion is recessed inside so as to be lower than an upper face of the other member to be joined so that the upper space portion can horizontally receive the one member to be joined so as to prevent the one member to be joined from moving in a transverse direction claim 1 , the intermediate space portion is formed in a cone shape surrounded by the slope inclined gradually inside from a lower portion of the upper space portion toward an ...

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Номер записи: 47
18-01-2018 дата публикации

CHIP AND METHOD OF MANUFACTURING CHIPS

Номер: US20180015569A1
Автор: LIN Po-Chun
Принадлежит:

A method of manufacturing chips from a semiconductor wafer having a plurality of streets on a front surface of the semiconductor wafer is provided. The method includes: forming a plurality of crack stopping structures on the semiconductor wafer at locations respectively aligned with intersections of the streets; irradiating a laser beam focused inside the semiconductor wafer along the streets to induce cracks; and breaking the irradiated semiconductor wafer along the cracks to the crack stopping structures, so as to separate the irradiated semiconductor wafer into the chips. 1. A method of manufacturing chips from a semiconductor wafer having a front surface on which a plurality of streets are defined and a back surface opposite to the front surface , the method comprising: 'etching the semiconductor wafer from the front surface to form a plurality of recesses, wherein the recesses serve as the crack stopping structures;', 'forming a plurality of crack stopping structures on the semiconductor wafer at locations respectively aligned with intersections of the streets, wherein the locations are on the front surface, and the forming comprises 'moving a focus point of the laser beam at a location in the semiconductor wafer between one of the recesses and the back surface during irradiating; and', 'irradiating a laser beam focused inside the semiconductor wafer along the streets to induce cracks, wherein the irradiating further comprisesbreaking the irradiated semiconductor wafer along the cracks to the crack stopping structures, so as to separate the irradiated semiconductor wafer into the chips.2. The method of claim 1 , wherein the breaking comprises:applying a tensile force to the irradiated semiconductor wafer.3. The method of claim 2 , wherein a protective tap is adhered to a back surface of the semiconductor wafer claim 2 , and the applying comprises:expanding the protective tap outwardly to apply the tensile force on the irradiated semiconductor wafer.48-. ( ...

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Номер записи: 48
18-01-2018 дата публикации

Submerged arc welding process

Номер: US20180015575A1
Автор: Junichi Kawata, Kazuhiro Fukuda
Принадлежит: Kobe Steel Ltd

A submerged arc welding process using welding wire containing, based on the total mass of the welding wire, Ni: 50% or more by mass, Cr: 14.5% to 16.5% by mass, Mo: 15.0% to 17.0% by mass, W: 3.0% to 4.5% by mass, Fe: 4.0% to 7.0% by mass, and C, Si, Mn, P, S, Cu, V, Co, and Al: a predetermined amount or less, and a bonded flux containing, based on the total mass of the bonded flux, Al 2 O 3 : 35% to 55% by mass, SiO 2 : 5% to 25% by mass, CaO: 2% to 10% by mass, CaF 2 : 25% to 45% by mass, and Na 2 O: 2% to 4% by mass.

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Номер записи: 49
21-01-2016 дата публикации

Carbide Wear Surface and Method of Manufacture

Номер: US20160016244A1
Автор: Dennis Mahlon D., Dennis Thomas M., Lewis Richard W.
Принадлежит:

A radial bearing having a wear surface with improved wear characteristics comprises a steel support, to which is bonded a metal carbide composite wear surface made by first arranging, within a cavity defined between a steel mold and the steel support, tiles made of microwave sintered, cemented metal carbide, closely packing the voids between the tiles with metal carbide powder, and infiltrating the mold cavity with a metal brazing alloy by subjecting the filled mold to rapid heating. The brazing alloy fills voids between the metal carbide particles, the microwave sintered metal carbide tiles, and the metal support, thereby relatively rapidly consolidating the carbide into a wear layer bonded with the steel support without substantially damaging the properties of the microwave-sintered metal carbide tiles.

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Номер записи: 50
21-01-2016 дата публикации

METHOD FOR MANUFACTURING POWER MODULE SUBSTRATE

Номер: US20160016245A1
Автор: Nagatomo Yoshiyuki, Terasaki Nobuyuki
Принадлежит:

A method for manufacturing a power module substrate includes a first lamination step of laminating a ceramic substrate and a copper sheet through an active metal material and a filler metal having a melting point of 660° C. or lower on one surface side of the ceramic substrate; a second lamination step of laminating the ceramic substrate and an aluminum sheet through a bonding material on the other surface side of the ceramic substrate; and a heating treatment step of heating the ceramic substrate, the copper sheet, and the aluminum sheet laminated together, and the ceramic substrate and the copper sheet, and the ceramic sheet and the aluminum sheet are bonded at the same time.

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Номер записи: 51
21-01-2016 дата публикации

RASTER METHODOLOGY, APPARATUS AND SYSTEM FOR ELECTRON BEAM LAYER MANUFACTURING USING CLOSED LOOP CONTROL

Номер: US20160016254A1
Автор: Stecker Scott, Wollenhaupt Phillip E.
Принадлежит:

A method for layer-by-layer manufacturing of a three-dimensional work piece, including: (a) delivering a metallic feed material into a feed region; (b) emitting an electron beam; (c) translating the electron beam through a first predetermined raster pattern frame that includes: (i) a plurality of points within the feed region; and (ii) a plurality of points in a substrate region that is outside of the feed region; (d) monitoring a condition of the feed region or the substrate region for the occurrence of any deviation from a predetermined condition; (e) upon detecting of any deviation, translating the electron beam through at least one second predetermined raster pattern frame that maintains the melting beam power density level substantially the same, but alters the substrate beam power density level; and (f) repeating steps (a) through (e) at one or more second locations for building up layer-by-layer.

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Номер записи: 52
21-01-2016 дата публикации

METHOD AND APPARATUS FOR PERFORMING LASER CURVED FILAMENTATION WITHIN TRANSPARENT MATERIALS

Номер: US20160016257A1
Автор: HOSSEINI S. ABBAS
Принадлежит: ROFIN-SINAR TECHNOLOGIES INC.

Systems and methods are described for forming continuous curved laser filaments in transparent materials. The filaments are preferably curved and C-shaped. Filaments may employ other curved profiles (shapes). A burst of ultrafast laser pulses is focused such that a beam waist is formed external to the material being processed without forming an external plasma channel, while a sufficient energy density is formed within an extended region within the material to support the formation of a continuous filament, without causing optical breakdown within the material. Filaments formed according to this method may exhibit lengths in the range of 100 μm-10 mm. An aberrated optical focusing element is employed to produce an external beam waist while producing distributed focusing of the incident beam within the material. Optical monitoring of the filaments may be employed to provide feedback to facilitate active control of the process. 1. A method of laser processing a transparent material , comprising the steps of:providing a laser beam, said laser beam includes a burst of laser pulses or a single laser pulse;providing a cubic phase plate or mask in said laser beam path to induce cubic phase in said laser pulses forming Airy beam;externally focusing said laser Airy beam relative to said transparent material to form a beam waist at a location that is external to said transparent material; and,said laser pulses are focused such that a sufficient energy density is maintained within said transparent material to form a continuous laser C-shaped curved filament therein without causing optical breakdown.2. A method of processing a transparent material , comprising the steps of:providing a laser beam, said laser beam having a plurality of bursts and each of said bursts include a plurality of pulses;generating an initial waist of said laser beam external to said transparent material;generating a weakly focused laser beam distributed within said transparent material in a C-shaped ...

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Номер записи: 53
21-01-2016 дата публикации

WELD FOR DIFFERENTIAL ASSEMBLY

Номер: US20160016258A1
Автор: HEFTER Martin, Li Huaxin
Принадлежит:

A weld is employed to join two components of a differential assembly. The weld has a centerline tilted towards one of the two components to generate a stress release packet at a weld root of the weld. In some arrangements, the two components are made of dissimilar materials such as iron and carburized steel, and a high nickel alloy wire is employed as the weld filler metal. The carburized layer on the steel is not removed before the welding process, such that the weld is formed as a mixture of iron, carburized layer from the steel component, and the weld filler metal.

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Номер записи: 54
21-01-2016 дата публикации

LASER WELDING SYSTEM AND METHOD

Номер: US20160016261A1
Автор: II Richard E., MUDD
Принадлежит: Photon Automation, Inc.

A system and method for precision welding using a fiber laser is disclosed in which varying intensity laser pulses are spread across the material junction in a number of high aspect ratio areas. The power density applied along each area is varied to accommodate differences in the material characteristics of each material while allowing for the creation of a more uniform weld pool alloy.

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Номер записи: 55
21-01-2016 дата публикации

PHOTONIC BOX OPENING SYSTEM

Номер: US20160016684A1
Автор: Dugat Jay Mark
Принадлежит: Robtoica, Inc.

The following simplified summary is provided in order to provide a basic understanding of some aspects of the claimed subject matter. Its purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later. In certain embodiments a system for opening packages is provided comprising a conveyer for supporting or conveying a package, wherein the package comprises a surface material and a measurement zone wherein the package is inspected and measured for a cutting operation to thereby determine a process location comprising a location on the package for introduction of a cut to the surface material. 1. A system for opening packages , comprising:a conveyer for supporting or conveying a package, wherein the package comprises a surface material;a measurement zone wherein the package is inspected and measured for a cutting operation to thereby determine a process location comprising a location on the package for introduction of a cut to the surface material; anda cutting zone comprising a photonic energy beam source, wherein the photonic energy beam source emits an energy beam directed at the process location, and wherein the energy beam contacts and cuts the surface material in the process location.2. The system of claim 1 , further comprising a beam trap that is to trap light energy from the energy beam inside the system.3. The system of claim 2 , wherein the beam trap comprises an actuated door and a conveyor.4. The system of claim 2 , wherein the beam trap comprises two actuated doors and a conveyor.5. The system of claim 4 , wherein the two actuated doors are interlocked such that both doors cannot be open concurrently when the system is in use.6. The system of claim 4 , further comprising a 90-degree transfer conveyor.7. The system of claim 1 , wherein the photonic energy beam source is mounted on a gantry.8. The system of claim 1 , wherein the photonic energy beam source is moveable in X- claim 1 , Y- claim 1 ...

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Номер записи: 56
18-01-2018 дата публикации

FRICTION STIR WELDED WINGTIP TORQUE BOX

Номер: US20180015996A1
Автор: Baumann John A., Cominsky Kenneth D., Dobberfuhl James P., Heck David P., Heer Steven S., Reichlinger Burke L., Shemkunas Michael P., SMITH Benjamin D., THOMAS ERIC E., Uhlman Matthew D.
Принадлежит: The Boeing Company

Provided are wingtip torque boxes and methods of fabricating such boxes using friction stir welding. Specifically, a wingtip torque box may be formed by friction stir welding two monolithic clamshells along their respective spars thereby forming a new monolithic structure. Use of the friction stir welding and monolithic clamshells simplifies the overall fabrication process and yields a robust wingtip torque box that can be bolted on or otherwise attached to an aircraft wing. The wingtip torque box may include internal grid stiffeners and/or external stiffeners that may be also monolithic with other components of the box. For example, the stiffeners may be machined in spars or skin portions of the clamshells during fabrication of clamshells. The wingtip torque box may have a continuous cavity extending between the ends and, in some embodiments, between spars of the box and providing access for performing various operations inside the box. 1. A wingtip torque box comprising:an upper monolithic clamshell comprising an upper front spar, an upper rear spar, and an upper skin portion extending between the upper front spar and the upper rear spar; wherein the upper monolithic clamshell and the lower monolithic clamshell form a cavity,', 'wherein the upper front spar is friction stir welded to the lower front spar at a front friction stir welded joint, and', 'wherein the upper rear spar is friction stir welded to the lower rear spar at a rear friction stir welded joint., 'a lower monolithic clamshell comprising a lower front spar, a lower rear spar, and a lower skin portion extending between the lower front spar and the lower rear spar,'}2. The wingtip torque box of claim 1 , wherein the wingtip torque box is monolithic.3. The wingtip torque box of claim 1 , wherein the upper monolithic clamshell comprises upper internal grid stiffeners extending from the upper skin portion to the cavity claim 1 , and wherein the lower monolithic clamshell comprises lower internal grid ...

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Номер записи: 57
19-01-2017 дата публикации

STRESS RELIEVED WELDS IN POSITIVE EXPULSION FUEL TANKS WITH ELASTOMERIC DIAPHRAGM

Номер: US20170016574A1
Автор: Ballinger Ian, Tuttle Wayne H.
Принадлежит:

A metallic positive expulsion fuel tank with stress free weld seams may include a first hemispherical shell with a first edge; a pressurized gas inlet attached to the first hemispherical shell; and a metallic cylinder with first and second edges attached to the first hemispherical shell along matching first edges by a first weld seam. The tank may also include a second hemispherical shell with a first edge attached to a fuel outlet fixture. An elastomeric diaphragm may be attached to the fuel outlet fixture on the second hemispherical shell. The second hemispherical shell may be attached to the second edge of the metallic cylinder along matching edges by a second weld seam thereby forming a positive expulsion fuel tank with two interior chambers separated by the elastomeric diaphragm. The first and second weld seams may be subjected to a localized post-weld stress relief heat treatment in which heating of the tank is confined to a distance of 2 inches (5.08 cm) of the first weld seam and a distance of 2 inches (5.08 cm) of the second weld seam such that the stresses in the first and second weld seams are relieved and the elastomeric diaphragm is unaffected by the heat treatment. 1. A metallic positive expulsion fuel tank comprising:a first hemispherical shell with a circumferential edge;a pressurized propellant gas inlet attached to the first hemispherical shell;a metallic cylinder with first and second circumferential edges wherein the first circumferential edge is attached to the circumferential edge of the first hemispherical shell by a first weld seam;a second hemispherical shell with a circumferential edge;a fuel outlet fixture attached to the second hemispherical shell;a hemispherical elastomeric diaphragm attached to the fuel outlet fixture;a second hemispherical shell attached to the second circumferential edge of the cylinder by a second weld seam forming two interior chambers separated by the elastomeric diaphragm;the first and second weld seams being ...

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Номер записи: 58
21-01-2016 дата публикации

METHOD OF MAKING A DUAL HARDNESS STEEL ARTICLE

Номер: US20160017455A1
Автор: Bailey Ronald E., Stefansson Njall, Swiatek Glenn J.
Принадлежит:

A dual hardness steel article comprises a first air hardenable steel alloy having a first hardness metallurgically bonded to a second air hardenable steel alloy having a second hardness. A method of manufacturing a dual hard steel article comprises providing a first air hardenable steel alloy part comprising a first mating surface and having a first part hardness, and providing a second air hardenable steel alloy part comprising a second mating surface and having a second part hardness. The first air hardenable steel alloy part is metallurgically secured to the second air hardenable steel alloy part to form a metallurgically secured assembly, and the metallurgically secured assembly is hot rolled to provide a metallurgical bond between the first mating surface and the second mating surface. 1. A method of manufacturing a dual hardness steel article , comprising:providing a first air hardenable steel alloy part comprising a first mating surface and having first part hardness;providing a second air hardenable steel alloy part comprising a second mating surface and having a second part hardness, wherein the first part hardness is greater than the second part hardness;disposing the first air hardenable steel alloy part and the second air hardenable steel alloy part so that at least a portion of the first mating surface contacts at least a portion of the second mating surface;metallurgically securing the first air hardenable steel alloy part to the second air hardenable steel alloy to form a metallurgically secured assembly;hot rolling the metallurgically secured assembly to form a metallurgical bond between the first mating surface and the second mating surface;cooling the hot rolled assembly.2. The method of claim 1 , further comprising grinding at least a portion of at least one of the first mating surface and the second mating surface prior to the disposing.3. The method of claim 1 , wherein metallurgically securing the first air hardenable steel alloy part to the ...

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Номер записи: 59
18-01-2018 дата публикации

BIT FOR DRILLING WITH CASING OR LINER STRING AND MANUFACTURE THEREOF

Номер: US20180016847A1
Автор: CUILLIER DE MAINDREVILLE Bruno, GALLEGO Gilles, THIGPEN Gary M.
Принадлежит:

A bit for drilling with a casing or liner string includes: a tubular stem made from a high strength metal or alloy; a head: having a cutting face with an inner cone, an outer shoulder, and an intermediate nose between the cone and the shoulder; attached to an end of the stem; and made from a nonferrous metal or alloy; a plurality of blades formed integrally with the head, made from the nonferrous metal or alloy, and each extending from a center of the cutting face to the shoulder; a plurality of superhard cutters mounted along each blade; a plurality of gauge pads formed integrally with the stem; and a flush joint formed between each blade and a respective gauge pad. A yield strength of the high strength metal or alloy is at least twice a yield strength of the nonferrous metal or alloy. 1. A bit for drilling with a casing or liner string , comprising:a tubular stem made from a high strength metal or alloy; having a cutting face with an inner cone, an outer shoulder, and an intermediate nose between the cone and the shoulder;', 'attached to an end of the stem; and', 'made from a nonferrous metal or alloy;, 'a heada plurality of blades formed integrally with the head, made from the nonferrous metal or alloy, and each extending from a center of the cutting face to the shoulder;a plurality of superhard cutters mounted along each blade;a plurality of gauge pads formed integrally with the stem; anda flush joint formed between each blade and a respective gauge pad,wherein a yield strength of the high strength metal or alloy is at least twice a yield strength of the nonferrous metal or alloy.2. The bit of claim 1 , wherein:the high strength metal or alloy is steel, andthe nonferrous metal or alloy is nickel-based.3. The bit of claim 1 , further comprising a layer of hardfacing deposited on a bottom or outer surface of each blade and an outer surface of each pad.4. The bit of claim 1 , wherein:the bit further comprises a lock joint and a lap joint attaching the head to the ...

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Номер записи: 60
21-01-2016 дата публикации

METAMATERIAL

Номер: US20160019879A1
Автор: Daley Stephen, Reynolds Matthew John
Принадлежит:

A metamaterial () for attenuating acoustic transmission comprises a plurality of layers (). Each layer () comprises a transmission structure () and a resonator (), coupled to the transmission structure (). The transmission structure () in a layer () is coupled to the transmission structures () of the layers () neighbouring said layer (). The resonator () in a layer () is coupled to the transmission structure () of the layers () neighbouring said layer (). 1. A metamaterial for attenuating acoustic transmission , the metamaterial comprising a plurality of layers , each layer comprising:(a) a transmission structure, and(b) a resonator, coupled to the transmission structure,wherein the transmission structure in a layer is coupled to the transmission structures of the layer(s) neighbouring said layer; CHARACTERISED IN THAT the resonator in a layer is coupled to the transmission structure of the layer(s) neighbouring said layer.2. A metamaterial as claimed in claim 1 , in which there are at least three of said layers.3. A metamaterial as claimed in claim 1 , in which the transmission structure comprises a disc or an annulus.4. A metamaterial as claimed in claim 3 , in which the discs or annuli of the layers are coaxial with each other.5. A metamaterial as claimed in claim 1 , in which the resonator is a cylinder.6. A metamaterial as claimed in claim 5 , in which the cylinders of the layers are coaxial with each other.7. A metamaterial as claimed in claim 6 , in which the transmission structure comprises a disc or an annulus and the cylinders are co-axial with the discs or annuli.8. A metamaterial as claimed in claim 1 , in which any of the couplings are viscoelastic couplings.9. A metamaterial as claimed in claim 1 , in which the metamaterial includes at least one active element configured to enhance the attenuation of acoustic transmission.10. A metamaterial as claimed in claim 9 , in which the at least one active element is comprised in at least one of the resonators. ...

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Номер записи: 61
21-01-2016 дата публикации

SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE MANUFACTURING METHOD

Номер: US20160020161A1
Автор: SUZUKI Kenji
Принадлежит:

A semiconductor device includes a semiconductor element; an insulating substrate formed from stacking a rectangular shaped circuit plate, insulating plate, and metal plate, wherein the semiconductor element is fixed to the circuit plate, and the metal plate has at least one first groove portion in four corners thereof; a radiating member made of metal and having a predetermined arrangement area to dispose the insulating substrate, the radiating member having at least one second groove portion provided in four corners of the arrangement area; four positioning members disposed between the four corners of the metal plate and the four corners of the radiating member, each of the four positioning members being fitted to each of the first groove portions and second groove portions; and a solder filling a space between the insulating substrate and the radiating member, and covering the positioning members.

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Номер записи: 62
21-01-2016 дата публикации

LASER-TRANSFERRED IBC SOLAR CELLS

Номер: US20160020343A1
Автор: Carlson David E.
Принадлежит: Natcore Technology, Inc.

A laser processing system can be utilized to produce high-performance interdigitated back contact (IBC) solar cells. The laser processing system can be utilized to ablate, transfer material, and/or laser-dope or laser fire contacts. Laser ablation can be utilized to remove and pattern openings in a passivated or emitter layer. Laser transferring may then be utilized to transfer dopant and/or contact materials to the patterned openings, thereby forming an interdigitated finger pattern. The laser processing system may also be utilized to plate a conductive material on top of the transferred dopant or contact materials. 1. A method for forming interdigitated back contacts of a solar cell , the method comprising:depositing at least one dopant material on a transfer substrate;positioning the transfer substrate a predetermined distance from a solar substrate, wherein the solar substrate provides at least one passivation layer on a rear surface; andactivating a laser, wherein the laser produces line-shaped laser beams or Gaussian laser beams, and the laser disrupts the passivation layer and transfers the at least one dopant material to the solar substrate to form a finger pattern.2. The method of claim 1 , wherein the line-shaped laser beam has a width less than 20 microns or the Gaussian laser beam has a diameter less than 20 microns.3. The method of claim 1 , wherein the laser activation step produces localized nand ppoint contacts in the finger pattern.4. The method of claim 1 , further comprising plating a conductive metal on top of the finger pattern on the solar substrate.5. The method of claim 1 , wherein the transfer substrate further comprises a layer of conductive metal claim 1 , and the method further comprisesactivating the laser to transfer the conductive metal from the transfer substrate to the solar substrate, wherein the conductive metal is deposited on top of the at least one dopant in the finger pattern.6. The method of claim 1 , wherein the solar ...

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Номер записи: 63
26-01-2017 дата публикации

Method for Producing a Bird Protection Device and Bird Protection Device

Номер: US20170020123A1
Автор: ARNOLD Hans-Joachim, BISCHOFF Robert, KUERBITZ Steffen, LUSTER Andreas, RAINER Thomas
Принадлежит:

The invention relates to a method for producing a bird protection device arid to a bird protection device. According to the invention, a method for producing a bird protection device is proposed, wherein the bird protection device is made of an at least partially transparent material and contains an optical structure visible to a bird's eye. Here, the method comprises a radiation input, wherein the radiation input is implemented on and/or in the partially transparent material for forming the optical structure. The radiation input is preferably laser radiation. Suitable lasers for the radiation input are, for example, CO2 lasers with a wavelength of 1064 nm, picosecond lasers with a wavelength of 532 nm or nanosecond lasers with a wavelength of 532 nm. In one embodiment of the invention, the bird protection device furthermore comprises an element for increasing the contrast, wherein, for forming the optical structure, the radiation input is implemented on and/or in the element for increasing the contrast. 1. A method for producing a bird protection device , comprising the steps of:forming the bird protection device of an at least partially transparent material, andproviding an optical structure visible for a bird's eye, with a source of radiation, wherein the radiation is applied for forming the optical structure on and/or in the partially transparent material.2. The method for producing a bird protection device according to claim 1 , further comprising an element for contrast enhancement claim 1 , wherein for forming the optical structure the radiation is applied on and/or in the element for contrast enhancement.3. The method for producing a bird protection device according to claim 1 , wherein the optical structure is formed by employing laser radiation on and/or in the partially transparent material.4. The method for producing a bird protection device according to claim 1 , wherein the application of radiation into the optical structure causes a local change of ...

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Номер записи: 64
26-01-2017 дата публикации

DIFFUSION-OPTIMIZED TIPPING PAPER

Номер: US20170020184A1
Автор: LINDNER Michael
Принадлежит: TANNPAPIER GmbH

A method for producing a diffusion-optimized tipping paper for tobacco products, especially filter cigarettes, by plasma perforation of the web of tipping paper for the purpose of maximum carbon monoxide reduction, wherein the diffusivity and the permeability P of the perforated tipping paper are measured in-line and diffusivity is maximized by controlling the perforation parameters, the definable target permeability Pbeing maintained at all times. 1. A method for manufacturing a diffusion-optimized mouthpiece lining paper for tobacco products , in particular filter cigarettes , by perforating the web of the mouthpiece lining paper for the purpose of maximum reduction of carbon monoxide , wherein{'sub': 'soll', 'the diffusivity and the permeability P of the perforated mouthpiece lining paper are determined inline, and the diffusivity is maximized by regulating the perforation parameters while constantly adhering to the pre-definable nominal permeability P.'}2. The method according to claim 1 , wherein the nominal permeability Pis pre-defined by pre-defining the degree of ventilation claim 1 , the drag resistance and/or the smoke values to be achieved.3. The method according to claim 1 , wherein diffusivity is approximately determined in that the perforation-hole count claim 1 , or the density of holes and/or the hole diameter D claim 1 , respectively claim 1 , are metrologically acquired.4. The method according to claim 1 , wherein the paper thickness d is measured inline.5. The method according to claim 1 , wherein the perforation parameters are controlled such that the achievable minimum hole diameter Dis set and permeability P is held constant by regulating the hole count n.6. The method according to claim 5 , wherein the achievable minimum hole diameter Dfor the mouthpiece lining paper being used is determined in an adjustment phase by automatic or manual variation of the perforation parameters.7. The method according to claim 1 , wherein the hole diameter D is ...

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Номер записи: 65
28-01-2016 дата публикации

TURBULATING COOLING STRUCTURES

Номер: US20160023272A1
Автор: JR. Dominic J., Mongillo, Propheter-Hinckley Tracy A., Xu JinQuan
Принадлежит:

In a first embodiment, a hollow gas turbine engine workpiece comprises first and second walls formed via additive manufacturing, and a cooling passage defined between the first and second walls by a surface of the first and second walls having arithmetic average surface roughness of at least 100 μin (0.0025 mm). In a second embodiment, a method of manufacture of a gas turbine engine component comprises depositing successive layers of pulverant material via additive manufacturing to form first and second walls defining a cooling passage therebetween, and loading a grain size of the pulverant material to produce lattice convective cooling design networks of various size and proportions with each having a range of relative roughness values, 0.10<ε/Dh<0.50 to achieve optimal thermal cooling performance along the cooling passage. 1. A hollow gas turbine engine workpiece comprising:a first wall;a second wall; anda cooling passage defined between the first wall and the second wall by surfaces of the first and second walls having a relative roughness ε/Dh between 0.10 and 0.50.2. The hollow gas turbine engine workpiece of claim 1 , wherein the relative roughness ε/Dh is at most 0.30.3. The hollow gas turbine engine workpiece of claim 1 , wherein the relative roughness ε/Dh is at least 0.14.4. The hollow gas turbine engine workpiece of claim 1 , wherein the hollow gas turbine engine workpiece is a gas turbine vane claim 1 , blade claim 1 , air seal claim 1 , or panel claim 1 , and the cooling passage is a vascular cooling passage.5. The hollow gas turbine engine workpiece of claim 1 , wherein the arithmetic average surface roughness is between 100 μin (0.0025 mm) and 1000 μin (0.0254 mm).6. The hollow gas turbine engine workpiece of claim 5 , wherein the arithmetic average surface roughness is less than 600 μin (0.0152 mm).7. The hollow gas turbine engine workpiece of claim 1 , wherein the cooling passage has a minimum passage dimension less than 0.15 inches (3.8 mm).8. The ...

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Номер записи: 66
28-01-2016 дата публикации

JOINING METHOD AND JOINING SYSTEM

Номер: US20160023292A1
Автор: Kobayashi Hiroyuki, MANAKO Hiroyasu, NISHIKAWA Kosuke
Принадлежит:

A joining method for joining a first member and a second member is provided. The joining method includes a step of providing a first brazing layer on the first member by plating, a step of providing a second brazing layer on the first brazing layer by plating, a step of arranging the first member and the second member to oppose each other across the first brazing layer and the second brazing layer, and a step of melting the first brazing layer and the second brazing layer to join the first member and the second member which are arranged to oppose each other. 1. A joining method for joining a first member and a second member comprising:providing a joining layer on the first member;arranging the first member and the second member to oppose each other across the joining layer; andmelting the joining layer to join the first member and the second member which are arranged to oppose each other,wherein the providing a joining layer on the first member comprises:providing a first brazing layer on the first member by plating; andproviding a second brazing layer on the first brazing layer by plating,wherein a first material constituting the first brazing layer is a material different from a second material constituting the second brazing layer.2. The joining method according to claim 1 , wherein the providing a joining layer on the first member further comprises:providing a third brazing layer on the second brazing layer by plating,wherein a third material constituting the third brazing layer is a material different from the second material constituting the second brazing layer.3. The joining method according to claim 2 , wherein the first material constituting the first brazing layer is the same material as the third material constituting the third brazing layer.4. The joining method according to claim 2 , wherein the first material constituting the first brazing layer is different from the third material constituting the third brazing layer.5. The joining method according ...

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Номер записи: 67
26-01-2017 дата публикации

BALL BAT INCLUDING MULTIPLE ALLOYS

Номер: US20170021249A1
Автор: Douglas Grant, Hunt Linda, Montgomery Ian
Принадлежит:

A ball bat includes a barrel section welded, adhered, or mechanically affixed to a handle section at a joint positioned in a taper region of the bat. The joint may alternatively be positioned in other regions, such as in the barrel region or the handle region. The barrel section may include a different metal alloy than the handle section. For example, the barrel section may include 6061 aluminum alloy and the handle section may include 7050 aluminum alloy. In some embodiments, the welded joint may be formed from a spin-welding process. The bat provides a strong handle in combination with a barrel that meets BBCOR or other performance requirements. 1. A ball bat comprising:a barrel section comprising a first metal alloy; anda handle section joined to the barrel section at a joint, the handle section comprising a second metal alloy that is stronger than the first metal alloy.2. The ball bat of wherein the barrel section has a first diameter and the handle section has a second diameter smaller than the first diameter.3. The ball bat of wherein the joint comprises an overlapping interface in which at least a portion of the handle section is positioned within the barrel section.4. The ball bat of wherein the joint comprises an overlapping interface in which at least a portion of the barrel section is positioned within the handle section.5. The ball bat of wherein the barrel section generally abuts the handle section at the joint.6. The ball bat of wherein the first metal alloy comprises 6061 aluminum alloy and the second metal alloy comprises 7050 aluminum alloy.7. The ball bat of wherein the barrel section is welded to the handle section at the joint.8. A ball bat comprising:a first bat section comprising a first metal alloy;a second bat section attached to the first bat section at a joint, the second bat section comprising a second metal alloy that is stronger than the first metal alloy;wherein the first bat section forms at least a part of a barrel region and the ...

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Номер записи: 68
26-01-2017 дата публикации

METHOD OF JOINING HEAT-TREATABLE ALUMINUM ALLOY MEMBERS BY FRICTION STIR WELDING

Номер: US20170021447A1
Автор: KUMAGAI Masaki, MINODA Tadashi, Tanaka Koji
Принадлежит: SUMITOMO LIGHT METAL INDUSTRIES, LTD.

A method of joining heat-treatable aluminum alloy members by friction stir welding, including the steps of: a T4-treatment-performing step of performing a T4 treatment on heat-treatable aluminum alloy members so as to impart T4 temper to the heat-treatable aluminum alloy members; a joining step of joining the heat-treatable aluminum alloy members with T4 temper by friction stir welding to provide a joined product; and a reversion-treatment-performing step of performing a reversion treatment, the reversion-treatment-performing step being carried out prior to or after the joining step. 1. A method of joining heat-treatable aluminum alloy members by friction stir welding , comprising the steps of:a T4-treatment-performing step of performing a T4 treatment on heat-treatable aluminum alloy members so as to impart T4 temper to the heat-treatable aluminum alloy members;a joining step of joining the heat-treatable aluminum alloy members with T4 temper by friction stir welding, wherein each heat-treatable aluminum alloy member has a length and a width, and wherein heat-treatable aluminum alloy members are butted together along the lengths thereof and friction stir welded along the abutted lengths to provide a joined product; anda reversion-treatment-performing step of applying heat from a reversion treatment directly across an entire width of the heat-treatable aluminum alloy members, the reversion-treatment-performing step being carried out after the joining step,wherein the joined product has a stir zone along said welded length of the joined product, with a heat-affected zone located outwardly of the stir zone and base material portions of the joined product being areas other than the stir zone and the heat-affected zone in a widthwise direction of the joined product, andwherein upon completing both the joining step and the reversion-treatment-performing step, a hardness of the stir zone is the highest, with a hardness of the heat-affected zone being the second highest, ...

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Номер записи: 69
26-01-2017 дата публикации

GAMMA PRIME PRECIPITATION STRENGTHENED NICKEL-BASE SUPERALLOY FOR USE IN POWDER BASED ADDITIVE MANUFACTURING PROCESS

Номер: US20170021453A1
Автор: ENGELI Roman, Etter Thomas, MEIDANI Hossein
Принадлежит: General Electric Technology GmbH

The application relates to the technology of producing three-dimensional articles by powder-based additive manufacturing, such as selective laser melting or electron beam melting. Especially, it refers to a high oxidation resistant and high gamma-prime precipitation containing Ni-base super alloy powder on basis of IN738LC with a modified chemical composition. Such powder has the following chemical composition (in wt.-%): 15.7-16.3 Cr, 8.0-9.0 Co, 1.5-2.0 Mo, 2.4-2.8 W, 1.5-2.0 Ta, 3.2-3.7 Al, 2.2-3.7 Ti, 0.6-1.1 Nb, 0.09-0.13 C, 0.007-0.012 B, 0.0045≦Zr<0.03, 0.001≦Si<0.03, remainder Ni and unavoidable residual elements and in addition a powder size distribution between 10 and 100 μm and a spherical morphology. As an advantage nearly crack free three-dimensional articles can be produced with more productive process parameters and without complicated and time consuming variations of the addive manufacturing processes (e.g. pre-heating) and/or post processing (e.g. hot isostatic pressing HIP). 1. Nickel-base superalloy powder comprising: a high gamma-prime precipitation content for additive manufacturing of three-dimensional articles wherein the powder has the following chemical composition (in wt.-%): 15.7-16.3 Cr , 8.0-9.0 Co , 1.5-2.0 Mo , 2.4-2.8 W , 1.5-2.0 Ta , 3.2-3.7 Al , 2.2-3.7 Ti , 0.6-1.1 Nb , 0.09-0.13 C , 0.007-0.012 B , 0.0045≦Zr<0.03 , 0.001≦Si<0.03 , remainder Ni and unavoidable residual elements and wherein the powder has a powder size distribution between 10 and 100 μm and a spherical morphology.2. Nickel-base superalloy powder according to claim 1 , wherein the Si content is max. 0.02 wt.-%.3. Nickel-base superalloy powder according to claim 1 , wherein the Zr content is max. 0.02 wt.-%.4. SLM process for additive manufacturing of three-dimensional articles with a Nickel-base superalloy powder containing a high gamma-prime precipitation content for additive manufacturing of three-dimensional articles wherein the powder has the following chemical ...

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Номер записи: 70
26-01-2017 дата публикации

Multiple beam additive manufacturing

Номер: US20170021455A1
Автор: Andrew Payne, David Squires, Joseph Dallarosa, Martin Sparkes, William O&#39;Neill
Принадлежит: IPG Photonics Corp

Systems and methods for multiple beam additive manufacturing use multiple beams of light (e.g., laser light) to expose layers of powder material in selected regions until the powder material fuses to form voxels, which form build layers of a three-dimensional structure. The light may be generated from selected light sources and coupled into an array of optical fibers having output ends arranged in an optical head in at least one line such that multiple beams are sequentially directed by the optical head to the same powder region providing multiple beam sequential exposures (e.g., with pre-heating, melting and controlled cool down) to fuse the powder region. The multiple sequential beams may be moved using various techniques (e.g., by moving the optical head) and according to various scan patterns such that a plurality of fused regions form each build layer.

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Номер записи: 71
26-01-2017 дата публикации

Systems and methods for kerfing veneers

Номер: US20170021457A1
Автор: Christopher L. Chapman, Satya Swaroop Panda, Sayan Rakshit, Tommy R. Hawkins
Принадлежит: Goodrich Corp

Systems and methods are disclosed herein for laser kerfed veneers. A laser may be used to produce kerf lines in thin veneers. The settings of the laser may be adjusted to adjust the width and depth of the kerf lines. The width and depth of the kerf lines may be selected in order to provide sufficient strength to the veneer while decreasing telegraphing.

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Номер записи: 72
28-01-2016 дата публикации

Reclosable packaging with a handle, and methods and devices for making such packaging

Номер: US20160023809A1
Автор: Erica Canavesi, Russell A. Leeker
Принадлежит: Nestec SA

A reclosable pour-spout packaging, such as a bag, has a top handle and can be manufactured on a form-fill-seal machine. A reclosable structure can reversibly close and open the interior of the packaging. The handle can comprise a cut extending through the packaging. An additional seal area in the packaging can provide support so that a punch and die assembly can punch or cut the handle in the additional seal area. Additionally or alternatively, a laser device, a blade, a knife, or another cutting tool can form the handle in the additional seal area, The additional sealed area can provide stiffness for carrying the packaging and also prevent access into the packaging where the handle is made. The additional seal area can be positioned below the top seal of the packaging so that less material is used for the handle.

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Номер записи: 73
26-01-2017 дата публикации

METHODS FOR CONTROLLED LASER-INDUCED GROWTH OF GLASS BUMPS ON GLASS ARTICLES

Номер: US20170022102A1
Автор: Masters Leonard Thomas, Streltsov Alexander Mikhailovich
Принадлежит:

A method for controlling formation of glass bumps in a glass article with laser-irradiation without the use of a growth-limiting structure. Standard deviation of height between the glass bumps on the article is less than 1 micron by controlling the laser radiation dose provided on the glass article. 1. A method of forming a glass article comprising a plurality of glass bumps , the glass article having a surface , the glass bumps formed in the glass article by laser radiation , each glass bump having a terminal point at a distance from the glass article surface , the method comprising:irradiating the glass article with laser radiation at a plurality of localities to induce growth of the glass bumps at the plurality of localities on the glass article;detecting a flash of light from the laser irradiated localities on the glass article with a photodetector that generates an electronic signal;setting a fixed exposure time for the laser radiation at the plurality of localities for after the flash of light is detected; andcontrolling a laser irradiation dose at the plurality of localities and the distance between each glass bump terminal point and the glass article surface, using the electronic signal, by terminating laser radiation of the localities the fixed exposure time after a controller receives the electronic signal.2. The method of wherein the plurality of glass bumps includes at least 5 glass bumps.3. The method of wherein each of the plurality glass bumps include a hemispherical lateral cross-section claim 1 , wherein each lateral cross-section substantially corresponds to a general circle curve equation with a coefficient of determination from 0.9 to 0.99.4. The method of wherein the standard deviation of the distance between the glass article surface and the terminal points of the plurality of glass bumps is less than 1 micron.5. The method of wherein the standard deviation of the distance between the glass article surface and the terminal points of the ...

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Номер записи: 74
25-01-2018 дата публикации

Process and apparatus for welding workpiece having heat sensitive material

Номер: US20180021871A1
Автор: Margarita Estrada, Ryan Kapustka, Shankar P. Srinivasan
Принадлежит: Siemens Energy Inc

Process and apparatus for welding workpiece have heat sensitive material are proposed. The heat sensitive material includes austenitic manganese steel, also referred to as Hadfield manganese steel. The process reciprocates filler metal in and out of weld pool. The motion of the filler metal may be synchronized with waveform of power source. Welding parameters are adjusted such that weld may be performed on the workpiece without cracking the heat sensitive material. The process allows Hadfield manganese steel to be welded to generator components in power generation applications. The process provides reliable and repeatable welding quality.

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Номер записи: 75
25-01-2018 дата публикации

Method of manufacturing metal articles

Номер: US20180021878A1
Автор: Eric Karlen, William Louis Wentland
Принадлежит: Hamilton Sundstrand Corp

A method for making an article is disclosed. According to the method, a digital model of the article is generated. The digital model is inputted into an additive manufacturing apparatus comprising an energy source. The additive manufacturing apparatus applies energy from the energy source to successively applied incremental quantities of a powder to fuse the powder to form the article corresponding to the digital model. The powder particles individually include a composite core including a first phase of a first metal and a second phase of a ceramic. A first shell including a second metal is disposed over the core.

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Номер записи: 76
25-01-2018 дата публикации

LASER WELDING, CLADDING, AND/OR ADDITIVE MANUFACTURING SYSTEMS AND METHODS OF LASER WELDING, CLADDING, AND/OR ADDITIVE MANUFACTURING

Номер: US20180021887A1
Автор: Doyle Brian, LIU Shuang, Miller Erik
Принадлежит:

Systems and methods of a laser welding device are disclosed. The laser welding device includes a laser generator configured to generate welding-type lasing power. A lens focuses the welding-type lasing power at a focal point on a workpiece to generate a puddle during a welding-type operation. A wire feeder is configured to feed wire to the puddle generated by the laser generator. A laser scanner controls the lens to move the focal point of the welding-type lasing power in multiple dimensions over the workpiece during the welding-type operation. In some examples, the feed wire is used in an additive manufacturing process. 1. A laser welding device , comprising:a laser generator configured to generate welding-type lasing power;a lens to focus the welding-type lasing power at a focal point on a workpiece to generate a puddle during a welding-type additive manufacturing operation;a wire feeder configured to feed wire to the puddle generated by the laser generator; anda laser scanner to control the lens to move the focal point of the welding-type lasing power in multiple dimensions over the workpiece during the welding-type additive manufacturing operation.2. The laser welding device as defined in claim 1 , wherein the laser scanner is configured to move the focal point in a circle claim 1 , an ellipse claim 1 , a zigzag claim 1 , a figure-8 claim 1 , a crescent claim 1 , a triangle claim 1 , a square claim 1 , a rectangle claim 1 , a non-linear pattern claim 1 , an asymmetrical pattern claim 1 , a pause claim 1 , or any combination thereof.3. The laser welding device as defined in claim 2 , wherein the movement of the focal point and relative movement between the workpiece and the laser scanner cause the lasing power to trace a superimposed pattern over the workpiece.4. The laser welding device as defined in claim 1 , wherein the laser scanner comprises a remote scan head with reflective optics or a rotary wedge scanner with transmissive optics.5. The laser welding ...

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Номер записи: 77
25-01-2018 дата публикации

Nickel based alloy with high melting range suitable for brazing super austenitic steel

Номер: US20180021894A1
Автор: Owe Mårs, Ulrika Persson
Принадлежит: HOGANAS AB

The invention discloses a nickel based brazing filler metal in form of an alloy containing or consisting of between 20 wt % and 35 wt % chromium, between 7 wt % and 15 wt % iron and between 2.5 wt % and 9 wt % silicon, between 0 wt % and 15 wt % molybdenum, unavoidable impurities and the balance being nickel. The solidus temperature of the brazing filler shall be between 1140° C. and 1240° C. The brazing filler metal is suitable for production of catalytic converters and heat exchangers. The invention also discloses a brazing method.

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Номер записи: 78
25-01-2018 дата публикации

LEAD-FREE SOLDER COMPOSITION

Номер: US20180021896A1
Автор: Chang Che-Wei, Huang Wei-Chih, LIN Kwang-Lung
Принадлежит:

A lead-free solder composition includes tin, titanium and zinc. Based on 100 parts by weight of the total weight of tin, titanium and zinc, tin is present in an amount ranging from 20 to 40 parts by weight, and titanium is present in an amount ranging from 0.01 to 0.15 parts by weight. 1. A lead-free solder composition comprising tin , titanium and zinc ,wherein, based on 100 parts by weight of the total weight of tin, titanium and zinc, tin is present in an amount ranging from 20 to 40 parts by weight, and titanium is present in an amount ranging from 0.01 to 0.15 parts by weight.2. The lead-free solder composition of claim 1 , wherein titanium is present in an amount ranging from 0.01 to 0.05 parts by weight based on 100 parts by weight of the total weight of tin claim 1 , titanium and zinc.3. The lead-free solder composition of claim 1 , wherein titanium is present in an amount ranging from 0.01 to 0.03 parts by weight based on 100 parts by weight of the total weight of tin claim 1 , titanium and zinc.4. The lead-free solder composition of claim 1 , wherein tin is present in 25 parts by weight based on 100 parts by weight of the total weight of tin claim 1 , titanium and zinc. This application claims priority of Taiwanese Application Number 105123411, filed on Jul. 25, 2016.The disclosure relates to a lead-free solder composition, and more particularly to a lead-free solder composition including tin, titanium and zinc.Conventional high-temperature lead-free solders that are well-known in the industry include gold-tin solder, bismuth-silver solder, zinc-aluminum solder and zinc-tin solder. Since gold and silver are considered more precious metals, gold-tin solder and bismuth-silver solder are more costly than zinc-aluminum solder and zinc-tin solder. Zinc-tin solder has the best mechanical strength and development potential of the above four solder compositions. Conventionally, the zinc-tin solder includes tin in an amount ranging from 20 to 40 wt %, where the ...

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Номер записи: 79
28-01-2016 дата публикации

Method for Producing a Profile and a Manufacturing System for Producing a Profile

Номер: US20160024605A1
Автор: Gorschlüter Jorg, Sikora Sascha
Принадлежит:

A method for producing a profile includes method steps of: providing a workpiece; shaping the workpiece; joining the workpiece; coating the workpiece; heating the workpiece; and at least partially hardening the workpiece; wherein the coating method step is carried out temporally after the joining method step and temporally before the heating method step. 1. A method for producing a profile , comprising the following method steps:providing a workpiece,shaping the workpiece,joining the workpiece,coating the workpiece,heating the workpiece,at least partially hardening the workpiece,wherein the coating method step is carried out temporally after the joining method step and temporally before the heating method step.2. The method according to claim 1 , wherein claim 1 , in the joining method step claim 1 , the shaped workpiece is welded.3. The method according to claim 1 , wherein claim 1 , in the shaping method step claim 1 , a slit is formed in the shaped workpiece by deformation.4. The method according to claim 1 , wherein the coated workpiece is hardened in a shaping manner in a hardening tool.5. The method according to claim 1 , wherein claim 1 , in the coating method step claim 1 , the joined workpiece is coated with a hot-dip coating process.6. The method according to claim 1 , wherein claim 1 , in the coating method step claim 1 , the joined workpiece is coated with an electrolytic coating process.7. The method according to claim 1 , wherein claim 1 , in the coating method step claim 1 , the joined workpiece is coated with an anti-scale layer in a painting process.8. The method according to claim 1 , further comprising cleaning the workpiece before the coating method step.9. The method according to claim 1 , wherein claim 1 , in the heating method step claim 1 , the coated workpiece is heated to a hardening temperature.10. The method according to claim 1 , wherein claim 1 , in the hardening method step claim 1 , the coated workpiece is transferred into a hardening ...

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Номер записи: 80
26-01-2017 дата публикации

METHOD AND MACHINE FOR TREATING SMALL OBJECTS

Номер: US20170022599A1
Автор: PEREGO Luciano
Принадлежит:

Method for the decoration of small three-dimensional objects () comprising the steps of: providing a semi-finished three-dimensional object () to be treated comprising a support (); by means of physical vapor deposition (PVD), realizing on at least one surface () of said support () a metallization layer () comprising a three-dimensional FIG. ), said three-dimensional FIG. ) comprising a plurality of reliefs and/or recesses (). A three-dimensional impression () is provided on at least one surface () of said support, comprising a plurality of projections and/or cavities (), for which the metallization layer realized by means of the PVD treatment presents a three-dimensional FIG. ), comprising a plurality of reliefs and/or recesses () respectively in correspondence of said projections and cavities (). The three-dimensional impression () is obtained by means of a laser marking treatment. 2. Method according to claim 1 , wherein the metallization layer is realized by a physical vapor deposition (PVD) treatment.3. Method according to claim 1 , wherein the realization of said three-dimensional impression occurs before the realization of said metallization layer.4. Method according to claim 3 , wherein said three-dimensional impression is realized on a base layer previously applied in contact with said at least one surface of the support.5. Method according to claim 3 , wherein said three-dimensional impression is obtained by plastic deformation of the base layer for the effect of laser marking treatment.6. Method according to claim 4 , wherein said base layer is applied by a lacquering or painting operation and subsequent pre-drying claim 4 , before providing said three-dimensional impression on said base layer.7. Method according to claim 1 , further comprising the step of removing portions of said metallization layer to obtain said three-dimensional figure.8. Method according to claim 7 , wherein the removing of portions of said metallization layer to obtain said three- ...

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Номер записи: 81
28-01-2016 дата публикации

Maxmet Composites for Turbine Engine Component Tips

Номер: US20160024955A1
Автор: Amini Shahram, Burlatsky Sergei F, Fuller David Ulrich, Novikov Dmitri, Strock Christopher W
Принадлежит:

A turbine engine system includes a turbine engine component having an airfoil portion and a tip, which turbine engine component having a MAXMET composite bonded to the tip. The MAXMET composite has MAX phases in a metal matrix. 1. A turbine engine system comprising:a turbine engine component having an airfoil portion and a tip;said turbine engine component having a MAXMET composite bonded to said tip.2. The turbine engine system according to claim 1 , wherein said MAXMET composite is a composite having MAX phases and a metal matrix.3. The turbine engine system according to claim 2 , wherein said metal matrix is at least one of a low claim 2 , medium claim 2 , and high melting point metal or metal alloy.4. The turbine engine system according to claim 2 , wherein said MAX phases are defined by the formula MAXwhere M is an early transition metal element claim 2 , A is an A-group element claim 2 , X is C or N claim 2 , and n=1 to 3.5. The turbine engine system according to claim 1 , further comprising an abradable coating which is engaged by the tip of said turbine engine component with said MAXMET composite.6. The turbine engine system according to claim 1 , wherein said turbine engine component is a vane.7. The turbine engine system according to claim 1 , wherein said turbine engine component is a blade.8. A turbine engine component comprising:an airfoil portion having a tip; anda MAXMET composite bonded to said tip.9. The turbine engine component according to claim 8 , wherein said MAXMET composite is a composite having MAX phases and a metal matrix.10. The turbine engine component according to claim 9 , wherein said metal matrix is at least one of a low claim 9 , medium claim 9 , and high melting point metal or metal alloy.11. The turbine engine component according to claim 9 , wherein said MAX phases are defined by the formula MAXwhere M is an early transition metal element claim 9 , A is an A group element claim 9 , X is carbon or nitrogen claim 9 , and n=1 to 3. ...

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Номер записи: 82
26-01-2017 дата публикации

HYBRID BONDED TURBINE ROTORS AND METHODS FOR MANUFACTURING THE SAME

Номер: US20170022827A1
Автор: Mittendorf Don, Morris Mark C., Vinup Michael, Waldman David R.
Принадлежит: HONEYWELL INTERNATIONAL INC.

Hybrid bonded turbine rotors and methods for manufacturing the same are provided. A method for manufacturing a hybrid bonded turbine rotor comprises the steps of providing turbine disk having a rim portion comprising a live rim of circumferentially continuous material and a plurality of live rim notches in an outer periphery of the turbine disk alternating with a plurality of raised blade attachment surfaces defining the outer periphery; providing a plurality of turbine blades, each of which comprising an airfoil portion and a shank portion, the shank portion having a base surface; metallurgically bonding a compliant alloy material layer to either or both of the raised blade attachments surfaces of the turbine disk and the base surfaces of the blade shanks; and linear friction welding the plurality of blades to the turbine disk so as to form a bond plane between the raised blade attachments surfaces of the turbine disk and the base surfaces of the blade shanks, the compliant alloy material layer being disposed at the bond plane. 1. A method for manufacturing a hybrid bonded turbine rotor comprising the steps of:providing turbine disk having a rim portion comprising a live rim of circumferentially continuous material and a plurality of live rim notches in an outer periphery of the turbine disk alternating with a plurality of raised blade attachment surfaces defining the outer periphery;providing at least one turbine blade, the at least one turbine blade comprising an airfoil portion and a shank portion, the shank portion having a base surface;metallurgically bonding a compliant alloy material layer to either or both of one or more of the raised blade attachment surfaces of the turbine disk and the base surface of the blade shank, wherein the compliant alloy is bonded only to the one or more of the raised blade attachment surfaces and not any other portion of the turbine disk, only to the base surface of the blade shank and not any other portion of the at least one ...

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Номер записи: 83
25-01-2018 дата публикации

SYSTEM AND METHOD FOR INTERLOCKING STRUCTURAL MEMBERS

Номер: US20180023286A1
Автор: ALLEN Casey Dean, Tweedy Bryan Matthew
Принадлежит: HFW Solutions, Inc.

A panel structure includes panel members that may be connected together using friction stir welding, Each of the panel members includes a first plate, a second plate substantially in parallel to said first plate, and at least one webbing member connecting the first plate and the second plate. The first plate of the first panel member includes a flange positioned in abutment with a flange located on the first plate of the second panel member. The flange of the first panel member includes a projection and the flange of the second panel member includes a groove. The panel members are connected so that the projection is engaged with the groove to thereby resist relative lateral movement that would separate the panel members. 1. A panel structure adapted to be friction stir welded , comprising: each of the first and second panel members include (1) a first plate, (2) a second plate substantially in parallel to the first plate, and (3) at least one webbing member connecting the first plate and the second plate;', 'the first plate of the first panel member includes a flange positioned in abutment with a flange located on the first plate of the second panel member, the flange of the first panel member and the flange of the second panel member each including a horizontal surface that is parallel to the first plate and the second plate;', 'the horizontal surface of the flange of the first panel member includes a projection that projects in a direction toward the second plate of the first panel member, and the horizontal surface of the flange of the second panel member includes a groove that opens in a direction away from the second plate of the second panel member;', 'a shape of the projection facilitates relative movement of the horizontal surfaces of the flanges of the first and second panel members toward a position in which the projection is engaged with the groove; and', 'the first and second panel members are connected so that the projection is engaged with the groove ...

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Номер записи: 84
28-01-2016 дата публикации

SELF-ALIGNED SPATIAL FILTER

Номер: US20160025994A1
Автор: SHAGAM Michael Yagoda, WALTERS Robert Joseph
Принадлежит: Integrated Plasmonics Corporation

A spatial filter is made by forming a structure comprising a focusing element and an opaque surface, the opaque surface being disposed remotely from the focusing element in substantially the same plane as a focal plane of the focusing element; and by forming a pinhole in the opaque surface at or adjacent to a focal point of the focusing element by transmitting a substantially collimated laser beam through the focusing element so that a point optimally corresponding to the focal point is identified on the opaque surface and imperfection of the focusing element, if any, is reflected on the shape and position of the pinhole so formed. 1. A method for making a spatial filter , comprising:forming a structure having a focusing element and an opaque surface, the opaque surface being disposed remotely from the focusing element in substantially the same plane as a focal plane of the focusing element;forming a pinhole in the opaque surface at or adjacent to a focal point of the focusing element by transmitting a substantially collimated light beam through the focusing element so that a point optimally corresponding to the focal point is identified on the opaque surface and imperfection of the focusing element, if any, is reflected on the shape and position of the pinhole so formed.2. The method according to claim 1 , wherein the opaque surface is made of a metal layer claim 1 , andwherein the step of forming the pinhole includes radiating a laser beam to the metal layer through the focusing element to ablate a portion of the metal at or adjacent to the focal point, thereby forming the pinhole in the metal layer.3. The method according to claim 1 , wherein the step of forming the pinhole includes:forming a photoresist on the opaque surface;radiating an exposing light beam to the photoresist through the focusing element to expose the photoresist; anddeveloping the exposed photoresist to form a photoresist pattern that defines a position of the pinhole to be formed.4. The method ...

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Номер записи: 85
25-01-2018 дата публикации

Direct Address Laser Ablation

Номер: US20180024515A1
Автор: Nicholson Verner Steve, STONE James Edward
Принадлежит:

A system and method for selectively removing tire material from the bead portions of a cured tire to reduce one or more harmonics of at least one uniformity parameter are disclosed. According to aspects of the present disclosure, tire material is selectively removed using a plurality of direct address commands. The direct address commands specify ablation parameters for discrete ablation segments at specific angular locations around the bead of the tire. The direct address commands are generated by analyzing the desired ablation pattern for the bead of the tire. The ablation device can then be controlled to selectively remove tire material in discrete ablation segments at identified addresses pursuant to the direct address commands to achieve the desired ablation pattern on one or more tracks along the bead portion of the tire using a single pass of the ablation device. 115-. (canceled)16. A method for reducing one or more harmonics of at least one uniformity parameter in a tire , comprising:receiving a plurality of ablation patterns for a bead of a tire, each ablation pattern associated with a different track location on the bead of the tire in the bead seat, low flange zone and high flange zone, each ablation pattern defining a desired ablation depth relative to an angular location around the bead and calculated to correct for one or more harmonics of at least one uniformity parameter for the tire;identifying a plurality of addresses for the bead, each address being associated with a specific angular location on the bead of the tire;analyzing each ablation pattern to determine a plurality of direct address commands to achieve the plurality of ablation patterns, the plurality of direct address commands specifying ablation parameters for a plurality of discrete ablation segments at one or more of the plurality of addresses along the bead of the tire;controlling the ablation device to selectively remove tire material from the bead in discrete ablation segments ...

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Номер записи: 86
02-02-2017 дата публикации

TUBE PROFILE MACHINING PROCESS

Номер: US20170028503A1
Автор: "ONeil Thomas M.", Smith Johnny N.
Принадлежит:

In a first embodiment, at a time of magnetic pulse welding, a stepped tube profile machining process axially bores a walled tube from an end inward to a transition depth to form a section with a reduced wall thickness and then axially bores the walled tube from the transition depth to a fall off depth, thereby forming a section with a maximized welding wall section. In a second embodiment, also at a time of magnetic pulse welding, a surface angle tube profile machining process axially bores at a surface angle a walled tube from an end to a bore length to form an angular welding wall thickness inward to a maximized wall section. For both embodiments, the bored surfaces are virgin with no pits, oil, residue, or oxidation thereon, thus making the machined walled tubes available for immediate magnetic pulse welding. 1. A tapered tube profile machining process , comprising:axially boring a walled tube inward at a tapered surface angle from an end thereof to a bore length, wherein the axially boring removes pits, oil, debris, and oxidation from the end of the walled tube to the bore length, so as to form a bored surface within the walled tube having an angular welding wall thickness inward to a maximized welding wall section;wherein the axially boring step requires no additional processing time of using acid for cleaning the bored walled tube surface of oil, of ridding the acid from the bored walled tube surface, of drying the bored walled tube surface, or further of removing pits, oil, debris, or oxidation from the bored walled tube, since the axially boring step occurs immediately just before a time of attachment of the walled tube to a workpiece, by magnetic pulse welding the tapered bored surface of the walled tube to the workpiece.2. The tapered tube profile machining process of claim 1 , wherein the workpiece is an end fitting inserted into the bored end of the axially tapered bored walled tube until the end fitting is in contact with the maximized welding wall ...

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Номер записи: 87
02-02-2017 дата публикации

METHOD OF MATERIAL PROCESSING BY LASER FILAMENTATION

Номер: US20170028505A1
Автор: HERMAN PETER R., HOSSEINI S ABBAS
Принадлежит: ROFIN-SINAR TECHNOLOGIES INC.

A method is provided for the internal processing of a transparent substrate in preparation for a cleaving step. The substrate is irradiated with a focused laser beam that is comprised of pulses having an energy and pulse duration selected to produce a filament within the substrate. The substrate is translated relative to the laser beam to irradiate the substrate and produce an additional filament at one or more additional locations. The resulting filaments form an array defining an internally scribed path for cleaving said substrate. Laser beam parameters may be varied to adjust the filament length and position, and to optionally introduce V-channels or grooves, rendering bevels to the laser-cleaved edges. Preferably, the laser pulses are delivered in a burst train for lowering the energy threshold for filament formation and increasing the filament length. 124-. (canceled)25. A method of preparing a substrate for cleavage , the method comprising the steps of:irradiating said substrate with a single pulse of a focused laser beam, wherein said substrate is transparent to said focused laser beam, and wherein said single pulse has an energy and pulse duration selected to produce a single continuous filament within said substrate;translating said substrate relative to said focused laser beam to irradiate said substrate and produce additional single continuous filaments at locations in said substrate;said single continuous filaments form an array defining an internally scribed path for cleaving said substrate;each said single pulse of said focused laser beam is focused to provide a sufficient beam intensity within said substrate to cause self-focusing of the focused laser beam over an extended laser interaction focal volume, thereby producing a plasma channel within said substrate while avoiding optical breakdown, such that substantially uniform modification of said material occurs along said beam path, thereby forming a single continuous filament within said substrate; ...

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Номер записи: 88
02-02-2017 дата публикации

METHODS OF FORMING HOLES AND ETCHING SURFACES IN SUBSTRATES AND SUBSTRATES FORMED THEREBY

Номер: US20170028510A1
Автор: Shin Yung C.
Принадлежит:

Methods capable of forming holes in, etching the surface of, or otherwise ablating substrates, and substrates formed thereby. A first method includes directing a first laser beam pulse towards a substrate to form a hole in a surface thereof and to form a plasma plume at least partially within the hole wherein the plasma plume has insufficient thermal energy and expansion velocity to etch sidewall of the hole, and directing a second laser beam pulse into the plasma plume to increase the temperature and expansion velocity of the plasma plume such that the sidewall is etched causing an increase in the cross-sectional dimension of the hole. A second method includes applying a liquid to a surface of a substrate, and directing a laser beam pulse into the liquid to create plasma on the surface of the substrate that etches portions of the surface of the substrate. 1. A method comprising:directing a first laser beam pulse towards a substrate to form a hole in a surface thereof having a cross-sectional dimension at a location along a depth of the hole, and to form a plasma plume at least partially within the hole, the plasma plume having insufficient thermal energy and expansion velocity to etch a sidewall of the hole; anddirecting a second laser beam pulse into the plasma plume to increase the temperature and expansion velocity of the plasma plume such that the sidewall is etched causing an increase in the cross-sectional dimension at the location in the hole.2. The method of claim 1 , wherein the first laser beam pulse has an intensity and duration sufficient to ablate a bottom of the hole in a depth direction claim 1 , and sufficient to create the plasma plume which has insufficient energy and expansion velocity to etch the sidewall of the hole claim 1 , but has sufficient energy that once amplified with the second laser beam pulse claim 1 , etches the sidewall.3. The method of claim 1 , wherein the second laser beam pulse has an intensity and duration sufficient to ...

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Номер записи: 89
04-02-2016 дата публикации

METHOD FOR ESTABLISHING A PERMANENT BOND BETWEEN A FERROUS ALLOY AND AN ALUMINIUM OR AN ALUMINIUM ALLOY

Номер: US20160031028A1
Автор: FAVRE-VERAND Thierry, PEREIRA Alberto
Принадлежит:

A process for establishing a permanent bond between a first part made of a ferrous alloy and a second part made of aluminum or of an aluminum alloy, comprises: a step of stacking a plurality of parts comprising the first part and the second part; and a heating step in which the heat produced by a heat source is transmitted to the second part through the first part, the heating step being carried out so as to cause the bond to be established between the first part and the second part by melting at least one of the stacked parts. 1. A process for establishing a permanent bond between a first part made of a ferrous alloy and a second part made of aluminum or of an aluminum alloy , the bond takes the form of a closed loop , the process comprising:a step of stacking a plurality of parts comprising the first part and the second part; anda heating step in which the heat produced by a heat source is transmitted to the second part through the first part, the heating step being carried out so as to cause the bond to be established between the first part and the second part by melting at least one of the stacked parts;the process further comprising, prior to the heating step, a preheating step of preheating the stacked parts by the heat source so as to raise the stacked parts to respective temperatures below their respective melting points, the same heat source being used for the preheating step and for the heating step.2. The process as claimed in claim 1 , in which claim 1 , in the stacking step claim 1 , a third part made of filler material claim 1 , which part is intended to establish the bond between the first part and the second part claim 1 , is interposed between the first part and the second part claim 1 , and in the heating step claim 1 , the heat produced by the heat source is transmitted to the second part and to the third part through the first part claim 1 , the third part being chosen and the heating step being carried out so as to establish the bond by braze- ...

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Номер записи: 90
04-02-2016 дата публикации

Method for bonding stainless steel members and stainless steel

Номер: US20160031035A1
Автор: Masahito Katoh, Tomomi Shiratori
Принадлежит: Komatsu Seiki Kosakusho Co Ltd, National Institute of Advanced Industrial Science and Technology AIST

A method for bonding stainless steel members includes: contacting a first stainless steel member with a second stainless steel member that has a strain exceeding 50% reduction; and heating the first and second stainless steel members to a re-crystallization initiation temperature or higher, after the contacting.

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Номер записи: 91
04-02-2016 дата публикации

ALUMINUM AND COPPER MATERIAL INTERCONNECTION AND METHOD OF PRODUCING SUCH AN INTERCONNECTION

Номер: US20160031042A1
Автор: EICHHORN Lutz, GIETZELT Thomas, Wunsch Torsten
Принадлежит:

In a material-interlocking connection between aluminum and copper in a layer assembly comprising an aluminum layer disposed on a copper element and a copper layer disposed on the aluminum layer, a weld seam is formed on the top copper layer so as to form a weld which extends through to top copper layer and the aluminum layer into the copper element so as to form in the weld seam an alloy of copper and aluminum. 1. A material interlocking connection between aluminum and copper comprising:{'b': '2', 'a layer assembly consisting of a copper element (),'}{'b': 1', '2, 'an aluminum layer () disposed on the copper element (), and'}{'b': 3', '1', '4', '3', '1', '2, 'a top copper layer () disposed on the aluminum layer (), the interlocking connection being established by a welding seam () extending from, and through, the top copper layer () through the aluminum layer () and into the copper element ().'}2131. The material interlocking connection according to claim 1 , wherein the aluminum layer () is an aluminum sheet or aluminum foil claim 1 , and the top copper layer () is a copper sheet or copper foil disposed on the aluminum layer ().331. The material interlocking connection according to claim 1 , wherein a layer of nickel in the form of a nickel coating is disposed on the fop copper layer () at the side thereof facing away from the aluminum layer ().443. The material interlocking connection according to claim 1 , wherein the welding seam () extends on the upper copper layer () along a weld line.5. The material interlocking connection according to claim 4 , wherein the weld line follows a cyclic line around a center line.6. A method for the manufacture of a material interlocking connection between aluminum and coppery comprising the following steps:{'b': 2', '1', '3, 'a) providing a copper element (), an aluminum layer () and a copper layer (),'}{'b': 1', '2, 'b) placing the aluminum layer () onto the copper element (),'}{'b': 3', '1, 'c) placing the copper layer () onto ...

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Номер записи: 92
04-02-2016 дата публикации

BACKSTRIKE PROTECTION DURING MACHINING OF COOLING FEATURES

Номер: US20160031050A1
Автор: Bonini Eric Richard, BUNKER Ronald Scott
Принадлежит:

A method of machining a component is provided. The component includes a substrate having an outer surface and an inner surface, where the inner surface defines at least one interior space. A core is disposed within each interior space. The method includes forming at least one hole in the substrate while the core is disposed within the respective interior space. Each hole extends through the substrate to provide fluid communication with the respective interior space. The method further includes removing the core from the respective interior space. The core may be a casting core or a subsequently formed core. 1. A method of machining a component comprising a substrate having an outer surface and an inner surface , wherein the inner surface defines at least one interior space , and wherein a core is disposed within each interior space the method comprising:casting the substrate around a casting core;removing the casting core from the respective interior space;disposing a subsequently formed core within the respective interior space by at least partially filling the at least one interior space with a cement slurry and at least partially curing the cement slurry to form the subsequently formed core;disposing a coating over at least a portion of the outer surface of the substrate;forming at least one hole in the substrate and coating, while the subsequently formed core is disposed within the respective interior space, wherein each hole extends through the substrate and coating to provide fluid communication with the respective interior space; andremoving the subsequently formed core from the respective interior space.2. The method of claim 1 , wherein the casting core comprises a ceramic core.3. The method of claim 1 , wherein the casting core is removed using a leaching process.4. The method of claim 1 , wherein the subsequently formed core is at least partially cracked as a result of the forming the hole(s) in the substrate.5. The method of claim 1 , wherein the coating ...

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Номер записи: 93
04-02-2016 дата публикации

FLUID EJECTION DEVICE

Номер: US20160031216A1
Автор: Friesen Ed, Rivas Rio, Ronk Kelly
Принадлежит:

A method of forming a substrate for a fluid ejection device includes forming an opening in the substrate from a second side toward a first side, and further forming the opening in the substrate to the first side, including increasing the opening to the first side and increasing the opening at the second side, and forming the opening with substantially parallel sidewalls intermediate the first side and the second side and converging sidewalls to the first side. 1. A method of forming a substrate for a fluid ejection device , the substrate having a first side and a second side opposite the first side , the method comprising:forming an opening in the substrate from the second side toward the first side; andfurther forming the opening in the substrate to the first side, including increasing the opening to the first side and increasing the opening at the second side, and forming the opening with substantially parallel sidewalls intermediate the first side and the second side and converging sidewalls to the first side.2. The method of claim 1 , wherein a length of the converging sidewalls is in a range of approximately five percent to approximately fifteen percent of a thickness of the substrate.3. The method of claim 1 , wherein forming an opening in the substrate from the second side toward the first side comprises laser machining the substrate from the second side toward the first side.4. The method of claim 1 , wherein further forming the opening in the substrate to the first side comprises anisotropically wet etching the substrate.5. The method of claim 4 , wherein further forming the opening in the substrate to the first side further comprises dry etching the substrate through the opening to the first side prior to the anisotropically wet etching the substrate.6. The method of claim 4 , wherein anisotropically wet etching the substrate comprises anisotropically wet etching the substrate with at least one of tetra-methyl-ammonium hydroxide and potassium hydroxide.7. ...

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Номер записи: 94
04-02-2016 дата публикации

SEPARATION OF TRANSPARENT WORKPIECES

Номер: US20160031745A1
Автор: Gerstner Klaus, Habeck Andreas, Haselhorst Georg, Ortner Andreas
Принадлежит:

A method is provided for preparing transparent workpieces for separation. The method includes generating aligned filament formations extending transversely through the workpiece along an intended breaking line using ultra-short laser pulses. 1. A method for generating a series of line-shaped damage formations in a transparent workpiece along a line , comprising:providing a laser processing device including an ultra-short pulsed laser and a focusing optic system, the laser processing device illuminating laser radiation with a wavelength that is within a transmission range of the workpiece;providing a workpiece table and a displacement device for directing the focusing optic system onto the workpiece during generation of the damage formations and incrementally displacing the focusing optic system and the workpiece table relative to each other according to the line; andemitting, while the focusing optic system is directed to each location of the damage formations, laser pulses in two or more successive periods, wherein the laser pulses have an energy during each period that is dimensioned so that a corresponding filament formation is produced in the workpiece, and wherein the successive periods produce consecutively aligned filament formations extending transversely through the workpiece.2. The method as claimed in claim 1 , wherein each filament formation comprises a plurality of focusing and defocusing points aligned transversely to the workpiece like a string of pearls.3. The method as claimed in claim 1 , wherein the increments of displacement of the focusing optic system relative to the workpiece are in the order of magnitude of the lateral dimension of the filament formations along the series of damage formations.4. The method as claimed in claim 1 , wherein the number of successive periods at each location of damage formation is a function of a local thickness of the workpiece.5. The method as claimed in claim 1 , wherein the focusing optic system generates a ...

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Номер записи: 95
01-02-2018 дата публикации

LASER ABLATION OF ACCELEROMETER PROOF MASS

Номер: US20180029160A1
Автор: Goodman William
Принадлежит:

A system for producing a proof-mass assembly includes a translation stage to receive a flapper hingedly supported by a bifilar flexure that extends radially inwardly from a support ring, wherein the bifilar flexure comprises a pair of flexure arms spaced apart by an opening or window; and a femtosecond laser optically coupled to the translation stage with focusing optics, the femtosecond laser applying a laser beam on the flexure arms over a plurality of passes to gradually thin the bifilar flexure regions, the laser periodically reducing a laser output to minimize damage from laser scanning and maximize bifilar flexure strength until the bifilar flexure reaches a predetermined thickness. 1. A method for producing a proof-mass assembly , comprising:forming a flapper hingedly supported by a bifilar flexure that extends radially inwardly from a support ring, wherein the bifilar flexure comprises a pair of flexure arms spaced apart by an opening or window;scanning a femtosecond laser on the flexure arms over a plurality of passes to gradually thin the bifilar flexure regions; andperiodically reducing femtosecond laser output to minimize damage from laser scanning and maximize bifilar flexure strength until the bifilar flexure reaches a predetermined thickness.2. The method of claim 1 , comprising ablating the other side of the flexure arms.3. The method of claim 2 , comprising:scanning a femtosecond laser on the flexure arms over a plurality of passes to gradually thin the bifilar flexure regions;periodically reducing femtosecond laser output until the bifilar flexure reaches a predetermined thickness to minimize damage from laser scanning and maximize the bifilar flexure strength.4. The method of claim 1 , comprising feathering with the femtosecond laser in areas where the flexure arms connect to the flapper or reed and producing a gradual transition from a thick to a thin section.5. The method of claim 1 , comprising claim 1 , after ablating the bifilar flexure claim ...

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Номер записи: 96
01-02-2018 дата публикации

METHODS AND APPARATUSES FOR LASER PROCESSING MATERIALS

Номер: US20180029165A1
Автор: Grundmueller Richard, Herrnberger Frank Fabian, KLEIN Michael, Spaeth Florian
Принадлежит:

Methods of laser processing a transparent material are disclosed. The method may include positioning the transparent material on a carrier and transmitting a laser beam through the transparent material, where the laser beam may be incident on a side of the transparent material opposite the carrier. The transparent material may be substantially transparent to the laser beam and the carrier may include a support base and a laser disruption element. The laser disruption element may disrupt the laser beam transmitted through the transparent material such that the laser beam may not have sufficient intensity below the laser disruption element to damage the support base. 1. A method of laser processing a transparent material , the method comprising:positioning the transparent material on a carrier; andtransmitting a laser beam through the transparent material, the laser beam incident on a side of the transparent material opposite the carrier, wherein:the transparent material is substantially transparent to the laser beam;the carrier comprises a support base and a laser disruption element; andthe laser disruption element optically disrupts the laser beam transmitted through the transparent material such that the laser beam does not have sufficient intensity below the laser disruption element to damage the support base; and the laser disruption element comprises at least one of: (i) a diffusive material, (ii) a translucent material, (iii) a material or interface with refractive index inhomogeneities that scatter wavefront of the laser beam.2. The method of claim 1 , wherein the laser disruption element comprises a top surface with average surface roughness (Ra) greater than or equal to about 0.5 microns.3. The method of claim 2 , wherein the average surface roughness (Ra) is greater than or equal to about 1.5 microns.4. The method of claim 2 , wherein the average surface roughness (Ra) is greater than or equal to about 2.0 microns5. A method of laser processing a ...

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Номер записи: 97
01-02-2018 дата публикации

APPARATUSES AND METHODS FOR LASER PROCESSING

Номер: US20180029919A1
Автор: Schillinger Helmut, Schnitzler Daniel
Принадлежит:

A workpiece may be laser processed by a method that may include forming a contour line in the workpiece, and directing an infrared laser beam onto the workpiece along or near the contour line to separate the workpiece along the contour line. The contour line may include defects in the workpiece. The infrared laser beam may have a beam profile such that a greater distribution of cumulated energy from the infrared laser beam is located in areas adjacent to the contour line than directly on the contour line. 1. A method for laser processing a workpiece , the method comprising:forming a contour line in the workpiece, the contour line comprising defects in the workpiece; anddirecting an infrared laser beam onto the workpiece along or near the contour line to separate the workpiece along the contour line, wherein the infrared laser beam has an annular beam profile such that a greater distribution of cumulated energy from the infrared laser beam is located in areas adjacent to the contour line than directly on the contour line.2. The method of claim 1 , wherein an outer diameter of the annular beam profile is from about 0.5 mm to about 20 mm.3. The method of claim 2 , wherein an inner diameter of the annular beam profile is from about 5% to about 95% of the outer beam diameter.4. The method of claim 1 , wherein a greater distribution of cumulated energy from the infrared laser beam is located in areas adjacent to the contour line on both sides of the contour line than directly on the contour line.5. The method of claim 1 , wherein the infrared laser beam is centered on the contour line.6. The method of claim 1 , wherein the infrared laser beam is produced by a carbon dioxide laser claim 1 , a carbon monoxide laser claim 1 , a solid state laser claim 1 , a laser diode claim 1 , or combinations thereof.7. The method of claim 1 , wherein the workpiece comprises an alkaline earth boro-aluminosilicate glass claim 1 , sapphire claim 1 , fused silica claim 1 , or combinations ...

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Номер записи: 98
01-02-2018 дата публикации

PROCESSING 3D SHAPED TRANSPARENT BRITTLE SUBSTRATE

Номер: US20180029920A1
Автор: Marjanovic Sasha, Nieber Albert Roth, Piech Garrett Andrew, Tsuda Sergio, Wagner Robert Stephen
Принадлежит:

Methods are provided for laser processing arbitrary shapes of molded 3D thin transparent brittle parts from substrates with particular interest in substrates formed from strengthened or non-strengthened Corning Gorilla® glass (all codes). The developed laser methods can be tailored for manual separation of the parts from the panel or full laser separation by thermal stressing the desired profile. Methods can be used to form 3D surfaces with small radii of curvature. The method involves the utilization of an ultra-short pulse laser that may be optionally followed by a COlaser for fully automated separation. 1. A glass article having a 3D surface , the glass article having at least one edge having a plurality of defect lines extending at least 250 microns , the defect lines each having a diameter less than or equal to about 5 microns.2. The glass article of claim 1 , wherein the glass article comprises strengthened glass.3. The glass article of claim 1 , wherein the glass article comprises unstrengthened glass.4. The glass article of claim 1 , wherein the edge has an Ra surface roughness less than about 0.5 microns.5. The glass article of claim 1 , wherein the edge has subsurface damage up to a depth less than or equal to about 75 microns.6. The glass article of claim 1 , wherein a distance between the defect lines is less than or equal to about 7 microns. This application is a divisional of U.S. application Ser. No. 14/530,379 filed on Oct. 31, 2014, which claims the benefit of U.S. Provisional Application No. 61/917,127 filed on Dec. 17, 2013, U.S. Provisional Application No. 62/024,581 filed on Jul. 15, 2014, and U.S. Provisional Application No. 62/046,360 filed on Sep. 5, 2014; the entire disclosures of which are incorporated herein by reference.The next wave of consumer electronics products is incorporating not only software and hardware innovations, but also changes that have design and functional appeal. New products are being announced and released on a ...

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Номер записи: 99
04-02-2016 дата публикации

SOLDER ALLOY AND JOINT THEREOF

Номер: US20160032424A1
Автор: MIYAOKA Motonori, Nishimura Tetsuro, NOZU Takashi, SHIBATA YASUFUMI, SUENAGA Shoichi
Принадлежит:

A silver electrode joint having a high joint strength obtained by actively minimizing the particle size of a silver-zinc intermetallic compound at the solidification point. A joint obtained by joining an article to be joined, the joint including silver at least as the surface layer thereof, using a solder alloy which comprises 2-9 wt % of zinc, 0.0001-0.1 wt % of manganese and the balance consisting of tin, the solder joint having a joint interface wherein the particle size of a silver-zinc intermetallic compound, which is formed by silver being the surface layer of the article to be joined and zinc in the solder alloy, is 5 μm or less. 1. A solder joint , comprising:a joint in which at least a surface layer is silver is joined by a solder alloy composed of 2 to 9 weight % of zinc, 0.0001 to 0.1 weight % of manganese, and a remainder of tin, wherein the solder joint has a joint boundary in which a a silver-zinc intermetallic compound formed of Ag silver of the surface layer of the joint and zinc in the solder alloy has a grain size of 5 μm or less.2. The solder joint according to claim 1 , wherein a solder plating with the solder alloy is applied in advance to a first joint surface and a second joint surface of the joint claim 1 , and the first solder plating and the second solder plating are heated to be molten while the first solder plating and the second solder plating are brought into contact with each other claim 1 , and then solidified.3. The solder joint according to claim 2 , wherein a heating/melting temperature is 230° C.-300° C.4. A solder joining method claim 2 , comprising:plating a first joint surface and a second joint surface of a joint to have a solder plating in which at least a surface layer is silver and is plated in advance with a solder alloy composed of 2 to 9 weight % of zinc, 0.0001 to 0.1 weight % of manganese, and a remainder of tin; andheating the solder platings on the first joint surface and the second joint surface to be molten while ...

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Номер записи: 100