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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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Применить Всего найдено 8. Отображено 8.
30-06-2023 дата публикации

Clamp equipment of laser additive and subtractive composite manufacturing machine tool

Номер: CN116352253A
Автор: JIANG FENGCHUN, SUN QI, GAO HUABING, DONG WANPENG, HAN XIAOFAN, GUO CHUNHUAN, DONG TAO
Принадлежит:

According to the laser additive and subtractive composite manufacturing machine tool clamp equipment, replacement of a laser machining head and a cutter is integrated on a machine tool spindle of the same vertical machining machine tool, and after replacement of the laser machining head and the cutter is completed, the whole clamp mechanism is folded to the position near a machine tool stand column through a hydraulic rod; a cross-shaped guide rail is also used for realizing the positioning problem with a machine tool main shaft when the laser processing head and the cutter are replaced; comprising a bolt gripper device, a precise cross guide rail transmission device and a hydraulic swing arm device, according to the additive and subtractive manufacturing method, additive and subtractive manufacturing is rapidly carried out after additive manufacturing, the additive and subtractive manufacturing machining time is shortened, the size of additive and subtractive manufacturing equipment is ...

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Номер записи: 1
28-02-2019 дата публикации

ULTRASONIC MICRO-FORGING COMBINED APPARATUS FOR IMPROVING STRUCTURE AND PERFORMANCE OF ADDITIVE MANUFACTURED METAL AND ADDITIVE MANUFACTURING METHOD

Номер: WO2019037338A1
Автор: JIANG, Fengchun, CHEN, Yuanping, YUAN, Ding, HUA, Dacheng, GUO, Chunhuan
Принадлежит:

Disclosed are an ultrasonic micro-forging combined apparatus for improving structure and performance of additive manufactured metal and an additive manufacturing method. The apparatus comprises a transducer (11), a pneumatic sliding bench (4), a pneumatic sliding bench connection frame (5), a variable-amplitude rod (10), a tool head (8) and a roller (6), wherein the transducer (11) is provided in a transducer housing (3), an insertion member (1) and a pipeline connector (2) are provided on the transducer housing (3), the variable-amplitude rod (10) is connected under the transducer (11), the tool head (8) is connected under the transducer (11), the roller (6) is located between the tool head (8) and a workpiece (7), and the pneumatic sliding bench (4) is connected to the transducer housing (3) and the variable-amplitude rod (10) via the pneumatic sliding bench connection frame (5). The ultrasonic micro-forging combined apparatus combines the advantages of high ultrasonic impact frequency ...

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Номер записи: 2
18-08-2023 дата публикации

Rapid post-processing device and method for additive manufacturing of high-entropy alloy slender component

Номер: CN116604041A
Автор: GUO CHUNHUAN, JIAO BO, JIANG FENGCHUN, SUN QIANFEI, WANG TONGFANG, ZHANG HEXIN, LIU YANG
Принадлежит:

According to the rapid post-processing device and method for the additive manufacturing high-entropy alloy thin and long component, the additive manufacturing high-entropy alloy thin and long component is subjected to post-processing through high-energy pulse current, the laser additive manufacturing high-entropy alloy thin and long component is promoted to generate phase change and recrystallization in a short time, the plasticity and toughness are improved, and the product quality is improved. The pulse current post-processing technology can promote conversion from an FCC phase to a BCC phase in a short time, temperature rise caused by Joule heat can trigger recrystallization in a short time, and the anisotropy trend is reduced; the dislocation density in the additive manufacturing high-entropy alloy can be effectively reduced, so that the plasticity and toughness of the high-entropy alloy are improved; the characteristics that the high-entropy alloy is high in oxidation resistance, high ...

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Номер записи: 3
06-06-2023 дата публикации

Nickel-based high-temperature alloy K447A and preparation method thereof

Номер: CN116213755A
Автор: JIANG FENGCHUN, LI LIYU, DONG TAO, GUO CHUNHUAN, ZHANG HEXIN, LYU ZHONGLI, ZHANG JUN, LI MINGJIE, GAO HUABING
Принадлежит:

The invention discloses a nickel-based superalloy K447A and a preparation method thereof.The preparation method comprises the steps that a three-dimensional model of a K447A nickel-based superalloy sample formed through SLM is established, slicing software is imported, and layering treatment is conducted; setting a sample placement position and a columnar hollow support parameter, and generating a support; forming laser process parameters, laser remelting process parameters and remelting times are set; nickel-based high-temperature alloy powder is laid, laser forming scanning is carried out, and an intermediate product of a forming layer is obtained; remelting an intermediate product of the forming layer to obtain the forming layer; and processing layer by layer to obtain a formed part. In the selective laser melting forming process, by designing a forming path and the scanning frequency, the temperature field in the forming process is improved, solidification cracks formed by segregation ...

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Номер записи: 4
13-06-2023 дата публикации

Method for integrally forming intelligent metal by metal and polymer flexible sensor

Номер: CN116252036A
Автор: GUO CHUNHUAN, SHI HAOCHENG, JIANG FENGCHUN, ZHANG HEXIN, GAO HUABING, LIU YANG
Принадлежит:

The invention discloses a method for integrally forming intelligent metal by using ultrasonic consolidation additive manufacturing metal and a polymer flexible sensor, which comprises the following steps of: placing the polymer flexible sensor on a 1100 aluminum strip, and sequentially covering the polymer flexible sensor with a pure copper strip with a groove which is 5-15% larger than that of the sensor and a complete 1100 aluminum strip; and finally, performing consolidation forming on the metal and the polymer flexible sensor by using ultrasonic consolidation additive manufacturing, so that the polymer flexible sensor is consolidated into the metal matrix. According to the method, the ultrasonic consolidation additive manufacturing preparation technology is adopted, the working temperature is far lower than that of a traditional welding method, the integrity of the sensor and a metal matrix material can be guaranteed while the polymer flexible sensor is embedded, and the method is a ...

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Номер записи: 5
05-05-2023 дата публикации

Thermal insulation material with hollow shell structure and preparation method of thermal insulation material

Номер: CN116060622A
Автор: JIANG FENGCHUN, CAO MENGXIN, GUO CHUNHUAN, ZHANG HEXIN, LIU YANG, GAO HUABING
Принадлежит:

The invention discloses a thermal insulation material with a hollow shell structure and a preparation method thereof. The heat insulation material comprises an aluminum alloy base body and a double-layer hollow ball, the aluminum alloy base body is filled with the double-layer hollow ball, the double-layer hollow ball is composed of a ceramic hollow ball and a metal shell layer, and the ceramic hollow ball is coated with the metal shell layer. According to the thermal insulation material with the hollow shell structure, the reinforcing effect and the thermal insulation characteristic of the hollow sphere structure in a metal-based composite material are fully utilized, the thermal insulation material has the functional characteristics of low density, high specific strength, low thermal conductivity, designable structure and the like, and the application field and scene of a metal material are widened. And by introducing the hollow sphere structure, the heat conductivity of the material ...

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Номер записи: 6
30-06-2023 дата публикации

Metal powder cavity ball structure design and additive manufacturing method thereof

Номер: CN116361876A
Автор: LI JIANLIANG, DONG TAO, JIANG FENGCHUN, LYU ZHONGLI, ZOU YATONG, JIAO YING
Принадлежит:

The invention relates to the technical field of functional materials and preparation methods thereof, in particular to a metal powder cavity ball structure design and additive manufacturing method thereof, which comprises metal powder cavity balls, a metal substrate, a computer and a laser, and the metal powder cavity balls are regularly arranged according to a certain spatial arrangement mode. According to the metal powder cavity spherical structure design and the additive manufacturing method thereof, as a novel porous functional material, the metal powder cavity spherical structure has various good characteristics of low density, vibration and noise reduction, heat insulation and sound absorption, radiation shielding and the like, the comprehensive performance is greatly improved compared with that of a traditional foam material, and the metal powder cavity spherical structure can be manufactured by conducting structure and component design on the material. And the performance design ...

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Номер записи: 7
21-07-2023 дата публикации

Nickel-based high-temperature alloy and selective laser melting preparation method thereof

Номер: CN116460287A
Автор: TONG YUNXIANG, DING ZHEN, TIAN BING, JIANG FENGCHUN
Принадлежит:

The invention provides a nickel-based high-temperature alloy and a selective laser melting preparation method thereof. The preparation method specifically comprises the following steps: (1) fully and uniformly mixing weldable Inconel718 nickel-based high-temperature alloy powder and non-weldable K447A nickel-based high-temperature alloy powder according to different component proportions; (2) drying the mixed alloy powder in a drying oven to remove moisture; (3) the mixed powder is printed and formed through a selective laser melting method, and the adjusted technological parameters comprise the laser power, the scanning speed, the layer thickness and the scanning strategy; and (4) the nickel-based high-temperature alloy component with few defects and good performance is obtained by adjusting the content of different alloy powder and printing process parameters. The nickel-based superalloy with good printing performance and mechanical performance is obtained by regulating and controlling ...

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Номер записи: 8