WO2014101020A1 - Appareil de fabrication par accroissement de matériau grâce à un dépôt par pulvérisation de plusieurs métaux liquides - Google Patents

Appareil de fabrication par accroissement de matériau grâce à un dépôt par pulvérisation de plusieurs métaux liquides Download PDF

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Publication number
WO2014101020A1
WO2014101020A1 PCT/CN2012/087576 CN2012087576W WO2014101020A1 WO 2014101020 A1 WO2014101020 A1 WO 2014101020A1 CN 2012087576 W CN2012087576 W CN 2012087576W WO 2014101020 A1 WO2014101020 A1 WO 2014101020A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating device
deposition
metal
manufacturing apparatus
metal liquid
Prior art date
Application number
PCT/CN2012/087576
Other languages
English (en)
Chinese (zh)
Inventor
单忠德
刘丰
李柳
Original Assignee
机械科学研究总院先进制造技术研究中心
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 机械科学研究总院先进制造技术研究中心 filed Critical 机械科学研究总院先进制造技术研究中心
Priority to PCT/CN2012/087576 priority Critical patent/WO2014101020A1/fr
Publication of WO2014101020A1 publication Critical patent/WO2014101020A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/22—Direct deposition of molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/10—Auxiliary heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/22—Driving means
    • B22F12/222—Driving means for motion along a direction orthogonal to the plane of a layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/50—Means for feeding of material, e.g. heads
    • B22F12/55—Two or more means for feeding material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/08—Metallic material containing only metal elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the present invention relates to the field of special processing machine tools and additive manufacturing technologies, and more particularly to a multi-metal liquid jet deposition additive manufacturing apparatus.
  • Metal jet forming technology is a rapid solidification forming material preparation technology which naturally combines atomization (rapid solidification) of liquid metal and deposition of atomized droplets (drip dynamic compacting) with minimal The process of making high-performance materials or near-formed parts directly from liquid metal.
  • the metal spray deposition technology and equipment not only overcome the shortcomings such as sand holes, sand sticks, pores and shrinkage holes in the traditional casting process, but also abandon the shortage of powder metallurgy processes and serious oxidation.
  • An object of the present invention is to solve the above problems in the prior art, and to provide a multi-metal liquid jet deposition additive manufacturing apparatus capable of realizing rapid and precise manufacture of multi-metal parts.
  • the invention provides a multi-metal liquid jet deposition additive manufacturing apparatus, comprising a deposition chamber, a heating device disposed above the deposition chamber, a nozzle connected to the heating device, a base located inside the deposition chamber, and a work table slidably connected to the base.
  • the heating device may be one or more, and the heating device may heat and melt a metal material, or simultaneously Heating and melting a variety of metal materials, the table can reciprocate along the X-axis and Y-axis directions.
  • the dedicated integrated control system can control multiple nozzles to simultaneously spray deposition, or it can be a single nozzle deposition. Step, the table can reciprocate along the Z-axis direction. Further, the heating device and the spray head can be reciprocated in the z-axis direction while being driven by the drive system. Further, the nozzle diameters may be the same or different. Further, each nozzle can individually control the injection rate.
  • the heating device includes a melting furnace, an electric furnace, a crucible furnace, an induction heating device, and a plasma heating device.
  • the multi-metal liquid jet deposition additive manufacturing equipment of the invention comprises a plurality of heating devices and nozzles, can control a plurality of nozzles to simultaneously spray a plurality of metal deposition forming, obtain high-density multi-metal parts, and has high jet deposition efficiency. Precision and rapid manufacturing of multi-metal parts, not only the overall hardness and toughness of the formed parts, but also good local application performance as needed. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG. In the drawings: Fig.
  • FIG. 1 is a schematic view showing the structure of a multimetal liquid jet deposition additive manufacturing apparatus according to the present invention.
  • a multimetal liquid jet deposition additive manufacturing apparatus comprising a deposition chamber, a heating device disposed above the deposition chamber, a plurality of nozzles connected to the heating device, a base located inside the deposition chamber, and a table slidably coupled to the base , a deposition substrate mounted on the workbench, a dedicated integrated control system for connecting and controlling the nozzle, the workbench, one or more heating devices for heating and melting a metal material or simultaneously melting and melting a plurality of metal materials,
  • the table is reciprocally movable in the X-axis and Y-axis directions, and a dedicated integrated control system controls a plurality of simultaneous ejection depositions of the plurality of nozzles or controls a single nozzle of the plurality of nozzles to separately spray deposition.
  • the table 4 is reciprocally movable in the Z-axis direction, and the heating device 1 and the head 8 are reciprocally movable in the Z-axis direction while being driven by the drive system.
  • the diameters of the nozzles 8 may be the same or different.
  • the heating device 1 may be a melting furnace, an electric furnace, a crucible furnace, an induction heating device, a plasma heating device, etc., and is equipped with various raw material and auxiliary material feeding systems, which may be many
  • the heating device 1 respectively performs material heating and melting, and may also be a heating device 1 to perform various materials separately.
  • the material is heated and melted to prepare a plurality of metal molten materials for the spray deposition forming of the multi-metal liquid jet deposition additive manufacturing apparatus of the present invention.
  • the dedicated integrated control system 10 runs a special control software matched with the multi-metal liquid jet deposition process, and combines the contour of the multi-metal parts and the internal material structure performance requirements to digitally control the worktable 4, the heating device 1, and the spray head 8.
  • the metal material in the heating and melting process may be in an atmospheric environment, a vacuum environment or a protective gas atmosphere.
  • the spray deposition process may be in a vacuum environment or in a protective gas atmosphere.
  • the spray deposition process can have different scanning speeds, and different nozzles 8, different injection rates, and different scanning speeds are used to carry out different regions of the multi-metal parts.
  • the filling can produce a multi-metal part with special application properties.
  • a part of the bottom material is A metal
  • the L-shaped corner area is C metal
  • the other part is B metal
  • the processing is described as follows: a three-dimensional CAD solid model of the formed part is established by using a computer; To the layering, the three-dimensional solid model is divided into a layered model of a machinable single-layer thickness; the jet-deposition process of the formed part is analyzed by a computer to generate an ejection scan path of each layer.
  • the heating device 1 is respectively placed with three metals A, B and C as raw materials, the deposition substrate 7 is fixed on the worktable, and the power is turned on, and the professional integrated control system 10 controls the various parts of the device according to the set parameters: Vacuum pump 9
  • the operation draws the heating device 1 into a required vacuum environment, and the heating device 1 heats and melts the required A metal liquid, B metal liquid and C metal liquid, and the vacuum pump 11 operates to extract the required vacuum environment in the deposition chamber 5;
  • the control system 10 controls the table 4 to move in accordance with the set scan path in the XY plane, selects a nozzle and a suitable injection rate to spray A metal liquid, and after one layer is sprayed, the table is lowered by one layer thickness and sprayed layer by layer; After the bottom part of the metal part 3 is spray-deposited, the b-spray and the appropriate injection rate are sprayed to spray the B-metal liquid.
  • the stage is lowered by a layer thickness and sprayed layer by layer; when the B-metal material is deposited to a certain thickness, Two metal materials of 8 and C are simultaneously present in one spray layer, and b nozzles and suitable sprays are alternately selected according to the scanning path and material region information of the spray layer.
  • the multi-metal liquid jet deposition additive manufacturing device of the invention can control a plurality of nozzles to simultaneously spray a plurality of metal deposition moldings to obtain high-density multi-metal parts, high jet deposition efficiency, and realize precise and rapid manufacture of multi-metal parts.
  • the formed parts not only have a high overall hardness and toughness, but also have good local application properties as needed.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Abstract

L'invention porte sur un appareil de fabrication par accroissement de matériau grâce à un dépôt par pulvérisation de plusieurs métaux liquides, comprenant une chambre de dépôt (5), un dispositif de chauffage (1) disposé au-dessus de la chambre de dépôt (5), des buses (8) raccordées au dispositif de chauffage (1), une base (6) située dans la chambre de dépôt (5), une plateforme de travail (4) raccordée en coulissement à la base (6) et un système de commande intégré dédié (10) qui raccorde et commande les buses (8) et la plateforme de travail (4). Le dispositif de chauffage (1) peut être unique ou multiple et le dispositif de chauffage (1) peut faire fondre un ou plusieurs types de matériaux métalliques par chauffage. La plateforme de travail (4) peut se déplacer en va-et-vient le long des directions de l'axe X et de l'axe Y. Le système de commande intégré dédié (10) peut commander de multiples buses (8) pour pulvériser simultanément, ou commander le dépôt par pulvérisation d'une seule buse, pour obtenir des pièces à plusieurs métaux de haute densité. Au moyen de l'appareil de fabrication par accroissement de matériau grâce à un dépôt par pulvérisation de plusieurs métaux liquides, le rendement du dépôt par pulvérisation est élevé et une fabrication précise et rapide de pièces à plusieurs métaux peut être réalisée.
PCT/CN2012/087576 2012-12-26 2012-12-26 Appareil de fabrication par accroissement de matériau grâce à un dépôt par pulvérisation de plusieurs métaux liquides WO2014101020A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/087576 WO2014101020A1 (fr) 2012-12-26 2012-12-26 Appareil de fabrication par accroissement de matériau grâce à un dépôt par pulvérisation de plusieurs métaux liquides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/087576 WO2014101020A1 (fr) 2012-12-26 2012-12-26 Appareil de fabrication par accroissement de matériau grâce à un dépôt par pulvérisation de plusieurs métaux liquides

Publications (1)

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WO2014101020A1 true WO2014101020A1 (fr) 2014-07-03

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106734900A (zh) * 2017-02-25 2017-05-31 江苏立元三维铸造科技有限公司 一种三维砂型打印机十喷头打印头
CN108511238A (zh) * 2018-05-28 2018-09-07 北京梦之墨科技有限公司 一种薄膜开关及其制备薄膜开关的装置和方法
CN110732670A (zh) * 2019-12-05 2020-01-31 安徽省春谷3D打印智能装备产业技术研究院有限公司 一种铝合金多喷头3d打印装置
CN110976874A (zh) * 2019-12-10 2020-04-10 上海工程技术大学 一种焊丝喷头的立体成型装置
CN113512695A (zh) * 2021-06-25 2021-10-19 佛山峰合精密喷射成形科技有限公司 一种双金属复合耐磨件的制备方法及制备装置
CN114645240A (zh) * 2022-03-23 2022-06-21 江苏金泰科精密科技有限公司 一种电子行业用金属镍-铝复合带材的制备方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01312013A (ja) * 1988-06-13 1989-12-15 Nkk Corp 異形断面金属材の製造方法
JPH03215655A (ja) * 1990-01-19 1991-09-20 Sumitomo Heavy Ind Ltd スプレイ・デポジットによる厚肉プリフォームの製造方法
JPH06179070A (ja) * 1992-12-09 1994-06-28 Agency Of Ind Science & Technol 金属の噴射成形法及びその装置
JPH10195676A (ja) * 1997-01-10 1998-07-28 Jiibetsuku Internatl Corp:Kk 三次元構造体の製造方法
CN101013746A (zh) * 2001-09-12 2007-08-08 精工爱普生株式会社 图案化方法及装置、膜形成方法及装置、电光学装置及其制法
CN101020999A (zh) * 2007-03-23 2007-08-22 沈阳航空工业学院 一种平面往复运动喷射沉积多层复合材料的制备方法和设备
CN101138789A (zh) * 2007-10-16 2008-03-12 天津大学 均匀液滴喷射三维快速成型方法与装置
CN203109235U (zh) * 2012-12-26 2013-08-07 机械科学研究总院先进制造技术研究中心 多金属液态喷射沉积增材制造设备

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01312013A (ja) * 1988-06-13 1989-12-15 Nkk Corp 異形断面金属材の製造方法
JPH03215655A (ja) * 1990-01-19 1991-09-20 Sumitomo Heavy Ind Ltd スプレイ・デポジットによる厚肉プリフォームの製造方法
JPH06179070A (ja) * 1992-12-09 1994-06-28 Agency Of Ind Science & Technol 金属の噴射成形法及びその装置
JPH10195676A (ja) * 1997-01-10 1998-07-28 Jiibetsuku Internatl Corp:Kk 三次元構造体の製造方法
CN101013746A (zh) * 2001-09-12 2007-08-08 精工爱普生株式会社 图案化方法及装置、膜形成方法及装置、电光学装置及其制法
CN101020999A (zh) * 2007-03-23 2007-08-22 沈阳航空工业学院 一种平面往复运动喷射沉积多层复合材料的制备方法和设备
CN101138789A (zh) * 2007-10-16 2008-03-12 天津大学 均匀液滴喷射三维快速成型方法与装置
CN203109235U (zh) * 2012-12-26 2013-08-07 机械科学研究总院先进制造技术研究中心 多金属液态喷射沉积增材制造设备

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106734900A (zh) * 2017-02-25 2017-05-31 江苏立元三维铸造科技有限公司 一种三维砂型打印机十喷头打印头
CN108511238A (zh) * 2018-05-28 2018-09-07 北京梦之墨科技有限公司 一种薄膜开关及其制备薄膜开关的装置和方法
CN108511238B (zh) * 2018-05-28 2023-09-26 北京梦之墨科技有限公司 一种薄膜开关及其制备薄膜开关的方法
CN110732670A (zh) * 2019-12-05 2020-01-31 安徽省春谷3D打印智能装备产业技术研究院有限公司 一种铝合金多喷头3d打印装置
CN110976874A (zh) * 2019-12-10 2020-04-10 上海工程技术大学 一种焊丝喷头的立体成型装置
CN113512695A (zh) * 2021-06-25 2021-10-19 佛山峰合精密喷射成形科技有限公司 一种双金属复合耐磨件的制备方法及制备装置
CN113512695B (zh) * 2021-06-25 2023-09-12 佛山峰合精密喷射成形科技有限公司 一种双金属复合耐磨件的制备方法及制备装置
CN114645240A (zh) * 2022-03-23 2022-06-21 江苏金泰科精密科技有限公司 一种电子行业用金属镍-铝复合带材的制备方法
CN114645240B (zh) * 2022-03-23 2023-12-29 江苏金泰科精密科技有限公司 一种电子行业用金属镍-铝复合带材的制备方法

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