CN110756804B - 3D printing method of metal material - Google Patents

3D printing method of metal material Download PDF

Info

Publication number
CN110756804B
CN110756804B CN201911041836.5A CN201911041836A CN110756804B CN 110756804 B CN110756804 B CN 110756804B CN 201911041836 A CN201911041836 A CN 201911041836A CN 110756804 B CN110756804 B CN 110756804B
Authority
CN
China
Prior art keywords
printing
metal powder
metal
storage tank
powder slurry
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN201911041836.5A
Other languages
Chinese (zh)
Other versions
CN110756804A (en
Inventor
王帅
李华兵
何旌
孙擎擎
曾志
林斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southern University of Science and Technology
Original Assignee
Southern University of Science and Technology
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 Southern University of Science and Technology filed Critical Southern University of Science and Technology
Priority to CN201911041836.5A priority Critical patent/CN110756804B/en
Publication of CN110756804A publication Critical patent/CN110756804A/en
Application granted granted Critical
Publication of CN110756804B publication Critical patent/CN110756804B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • 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
    • B22F12/13—Auxiliary heating means to preheat the material
    • 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
    • B22F10/10—Formation of a green body
    • B22F10/12—Formation of a green body by photopolymerisation, e.g. stereolithography [SLA] or digital light processing [DLP]
    • 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
    • B22F10/36—Process control of energy beam parameters
    • 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
    • B22F12/20—Cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • 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
    • B22F12/40—Radiation means
    • B22F12/49—Scanners
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention belongs to the field of metal 3D printing, and discloses a 3D printing (additive manufacturing) method for a metal material. The method takes a stable metal powder slurry or a solid-liquid mixture such as a suspension, a dispersion liquid, a complex and a colloid, which are prepared from metal powder, an organic solvent, a binder, a dispersant, a suspending agent and a degasifier, as a forming material, and adopts a novel selective laser melting mode, so that a metal finished product with a fine structure can be simply, conveniently and rapidly prepared, and the method comprises the following steps: uniformly mixing metal or alloy powder, an organic solvent, a binder, a dispersant, a suspending agent and a degasifier to prepare stable metal powder slurry with good fluidity; the laser light source system is arranged below the storage tank; and (3) establishing a printing model by using three-dimensional software, setting laser process parameters, and performing SLM printing. The invention reduces the powder spreading process, simplifies the device, improves the printing efficiency and solves the problems of splashing and oxidation of metal powder.

Description

3D printing method of metal material
Technical Field
The invention belongs to the field of metal 3D printing, and relates to a 3D printing (additive manufacturing) method for a metal material.
Background
The 3D printing (additive manufacturing) technology is a production molding technology that takes computer design, material processing molding, and digital model as the basis, takes ceramic materials, metal materials, polymer materials, and biomedical materials as raw materials, and is controlled by a program and a numerical control system to be stacked layer by layer in the manners of sintering, melting, photocuring, extrusion, jetting, and the like, thereby forming a preset member. Different from the traditional casting forming, raw material reducing cutting and splicing assembling methods, the 3D printing technology is a bottom-up additive manufacturing forming technology and is a process from the beginning. The 3D printing technology makes up the defect that the traditional manufacturing mode is difficult to produce the fine structural parts in batches, can realize the rapid batch production of the fine and complex structural parts, and simultaneously greatly reduces the cost.
Selective Laser Melting (SLM) is an additive manufacturing technique for rapid forming of metal powder, which is completely melted by the heat of a laser beam and formed by cooling and solidifying. The scanning system controls the laser beam to act on the powder in the scanning path according to the layered slice information of the three-dimensional model of the structure. Under the action of high laser energy density, the metal powder is completely melted and welded with the solid metal after heat dissipation and cooling. After the scanning of the first layer is finished, the piston in the piston cylinder can descend by a layer thickness distance; then the powder feeding system conveys a certain amount of powder, and the powder spreading system spreads a layer of powder to be deposited on the formed layer. And then, repeating the steps until all the slice layers of the three-dimensional model are scanned. In this way, the three-dimensional model directly shapes the metal part in a layer-by-layer cumulative manner. The technology can be applied to prepare structural parts with complex structure, high density, high precision, good surface quality and excellent mechanical and physicochemical properties.
With the development of material science and the wide application demand, the requirements for materials are increased more and more. However, the selective laser melting technology has disadvantages, such as high requirements for the shape and the fluidity of the metal powder, and high requirements for a powder laying system; the problem of powder splashing often exists in the printing process, which directly influences the forming and the structure performance of the metal material; the equipment price is high, and the cost is further increased by the vacuum circulating system and the powder spreading system, so that the application and the popularization of the selective laser melting technology in the aspect of metal material printing are limited.
Disclosure of Invention
The invention provides a 3D printing (additive manufacturing) method of a metal material, and overcomes the defects of the prior art. The method uses metal powder, organic solvent, binder, dispersant, suspending agent and degasifier to prepare stable and good-fluidity metal powder slurry or solid-liquid mixture such as suspension, dispersion, complex and colloid, the laser light source system is arranged below the storage tank, and the printing platform is arranged right above the storage tank, thereby simply, conveniently and quickly preparing metal finished products with fine structures.
The technical scheme of the invention is as follows:
(1) uniformly mixing metal powder, an organic solvent, a binder, a dispersant, a suspending agent and a degasifier to prepare a stable and good-fluidity solid-liquid mixture such as metal powder slurry or suspension, dispersion liquid, a complex and colloid;
(2) establishing a printing model by using three-dimensional software, and setting laser process parameters;
(3) filling the prepared metal powder slurry into a storage tank, and performing SLM printing;
(4) and taking out the printed metal finished product for post-treatment.
The preparation method of the metal powder slurry comprises the following steps:
(1) the metal powder is one or more of aluminum, cobalt, chromium, iron, nickel, titanium, zirconium, manganese, molybdenum, vanadium, antimony, scandium, yttrium, niobium, ruthenium, rhodium, palladium, lutetium, hafnium, tantalum, tungsten, rhenium, osmium, iridium, platinum, gold, silver, copper, zinc, tin, germanium, magnesium and lead, and the particle size is 0.01-100 mu m;
(2) the organic solvent is one or more of glycerol, diethylene glycol, cyclohexanol, butanol, ethanol, isopropanol, ethyl acetate, butyl acetate, acetic acid, acetone, ethylene glycol dimethyl ether, ethylene glycol monomethyl ether, and hexane; the binder is one or more of polyvinyl acetate, polyvinyl acetal, polyvinyl alcohol and polyacrylate; the dispersant is one or more of polyacrylic acid, polymethacrylic acid, ammonium alginate, ethanol, polyethylene glycol, polyacrylamide and methyl amyl alcohol; the suspending agent is one or more of stearic acid, ammonium hydroxide, hydrochloric acid, propylene glycol, acetic ester starch, tara gum, xanthan gum, guar gum, carrageenan and polyacrylic acid; the degasifier is one or more of n-octanol, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and higher alcohol;
(3) preparing metal powder slurry, filling metal powder, an organic solvent, a binder, a dispersing agent, a suspending agent and a degasifying agent into a beaker, and uniformly mixing and dispersing the powder slurry by a dispersion machine.
Wherein, a physical model to be printed is designed by three-dimensional software, laser process parameters are set, the power is 30-600W, and the scanning speed is 20-400 mm/s.
According to the method, the storage tank is connected with the heating and cooling system, so that the fluidity and the viscosity of the metal powder slurry can be adjusted. The bottom of the storage tank is provided with a transparent plate, the laser source system is arranged below the storage tank, and laser can be used for printing the metal powder slurry. The printing platform is connected with the lifting structure and is positioned right above the material storage tank, and before printing is started, the printing platform extends into the material storage tank and is 10-100 mu m away from the bottom; after printing is started, depositing a first metal layer on the printing platform by the metal powder slurry, slowly lifting the printing platform by 10-100 microns along with the lifting structure, enabling the metal powder slurry in the storage tank to flow, filling a gap between the printing platform and the bottom of the storage tank due to lifting, then printing a second metal layer, and repeating the steps until printing is finished.
According to the method, the printed metal finished product is taken out, and the organic solvent and the additive adhered to the surface are washed away by absolute ethyl alcohol to obtain the finished product.
The invention has the advantages that:
(1) the metal powder is prepared into solid-liquid mixtures such as metal powder slurry or suspension, dispersion, complex and colloid, so that the problem of powder splashing is effectively prevented;
(2) the powder spreading system is omitted, the powder spreading process is reduced, the device is simplified, the printing efficiency is improved, the effective utilization rate of the powder slurry is improved, and the equipment cost is reduced;
(3) the metal powder is dispersed in the organic solvent and is melted and formed at the bottom of the slurry, so that air is isolated, and compared with a vacuum system, the volume of the instrument is reduced, and the equipment cost is reduced.
Drawings
FIG. 1 is a schematic diagram of a 3D printing method of a metal material according to the present invention;
in the figure: 1-a lifting structure; 2-a printing platform; 3-metal powder slurry; 4, a storage tank; 5-forming the component; 6-laser beam; 7-a lens; 8, a galvanometer; 9-heating and cooling system.
Detailed Description
1. In order to make the present invention more clear and easy to understand, the following examples are given for detailed description, and the present invention is not limited to the following examples.
2. The invention relates to a 3D printing method of a metal material, which comprises the following steps:
(1) uniformly mixing metal powder, an organic solvent, a binder, a dispersant, a suspending agent and a degasifier to prepare a stable and good-fluidity solid-liquid mixture such as metal powder slurry or suspension, dispersion liquid, a complex and colloid;
(2) establishing a printing model by using three-dimensional software, and setting laser process parameters;
(3) filling the prepared metal powder slurry into a storage tank, and performing SLM printing;
(4) and taking out the printed metal finished product for post-treatment.
3. The preparation method of the metal powder slurry comprises the following steps:
(1) the metal powder is one or more of aluminum, cobalt, chromium, iron, nickel, titanium, zirconium, manganese, molybdenum, vanadium, antimony, scandium, yttrium, niobium, ruthenium, rhodium, palladium, lutetium, hafnium, tantalum, tungsten, rhenium, osmium, iridium, platinum, gold, silver, copper, zinc, tin, germanium, magnesium and lead, and the particle size is 0.01-100 mu m;
(2) the organic solvent is one or more of glycerol, diethylene glycol, cyclohexanol, butanol, ethanol, isopropanol, ethyl acetate, butyl acetate, acetic acid, acetone, ethylene glycol dimethyl ether, ethylene glycol monomethyl ether, and hexane; the binder is one or more of polyvinyl acetate, polyvinyl acetal, polyvinyl alcohol and polyacrylate; the dispersant is one or more of polyacrylic acid, polymethacrylic acid, ammonium alginate, ethanol, polyethylene glycol, polyacrylamide and methyl amyl alcohol; the suspending agent is one or more of stearic acid, ammonium hydroxide, hydrochloric acid, propylene glycol, acetic ester starch, tara gum, xanthan gum, guar gum, carrageenan and polyacrylic acid; the degasifier is one or more of n-octanol, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and higher alcohol;
(3) preparing metal powder slurry, filling metal powder, an organic solvent, a binder, a dispersing agent, a suspending agent and a degassing agent into a beaker, uniformly mixing and dispersing the powder slurry by a dispersion machine, and degassing in vacuum for later use.
4. Wherein, a physical model to be printed is designed by three-dimensional software, laser process parameters are set, the power is 30-600W, and the scanning speed is 20-400 mm/s.
5. And filling the prepared metal powder slurry into a storage tank, starting printing, and performing SLM printing.
6. According to the method, the storage tank is connected with the heating and cooling system, so that the fluidity and the viscosity of the metal powder slurry can be adjusted. The bottom of the storage tank is provided with a transparent plate, the laser source system is arranged below the storage tank, and laser can be used for printing the metal powder slurry. The printing platform is connected with the lifting structure and is positioned right above the material storage tank, and before printing is started, the printing platform extends into the material storage tank and is 10-100 mu m away from the bottom; after printing starts, the metal powder slurry deposits a first metal layer on the printing platform, then the printing platform slowly rises along with the lifting structure, the metal component is gradually formed until printing is finished, and the printing platform provides a complete metal component.
7. According to the method, the printed metal finished product is taken out, and the organic solvent and the additive adhered to the surface are washed away by absolute ethyl alcohol to obtain the finished product.
8. Example one
(1) Accurately weighing 10g of iron powder with the particle size of 0.5-10 mu m, and weighing an organic solvent, a binder, a dispersant, a suspending agent and a degasifier in a beaker to keep the mass ratio of liquid components to the iron powder at 0.4-0.5;
(2) wherein the ratio of the organic solvent to the binder to the dispersant to the suspending agent to the deaerating agent is 50:3:1:1: 0.5; selecting absolute ethyl alcohol as an organic solvent, polyvinyl alcohol as a binder, polyacrylamide as a dispersing agent, carrageenan as a suspending agent, and n-octyl alcohol as a degasifying agent; preparing the additives into mother liquor according to a ratio for later use;
(3) adding the weighed iron powder and mother liquor into a beaker, uniformly dispersing the iron powder in the mother liquor at the rotating speed of 3000r/min by using a dispersion machine to prepare iron powder slurry, and degassing in vacuum for later use;
(4) a physical model to be printed is designed by three-dimensional software, laser process parameters are set, the power is 400W, and the scanning speed is 50 mm/s.
(5) And (4) filling the prepared iron powder slurry into a storage tank, starting printing, and performing SLM printing. The storage tank is connected with a heating and cooling system, and the fluidity and the viscosity of the metal powder slurry can be adjusted. The bottom of the storage tank is provided with a transparent plate, the laser source system is arranged below the storage tank, and laser can be used for printing the metal powder slurry. The printing platform is connected with the lifting structure and is positioned right above the material storage tank, and before printing is started, the printing platform extends into the material storage tank and is 10-20 microns away from the bottom; after printing is started, melting iron powder under laser and depositing a first metal layer on a printing platform, and then slowly lifting the printing platform along with a lifting structure; the iron slurry in the storage tank flows to fill a gap between the printing platform and the bottom of the storage tank due to rising, so that the powder spreading process is reduced, and a newly fused and formed part always keeps a 10-20 mu m interval with the bottom of the storage tank; repeating the process, gradually forming the metal component until the printing is finished, and providing a complete metal component by the printing platform;
(6) and taking out the printed metal finished product, washing off the iron powder slurry adhered to the surface by using absolute ethyl alcohol, and airing to obtain the finished product.

Claims (6)

1. A method of 3D printing of a metallic material, the method comprising the steps of:
(1) uniformly mixing metal powder, an organic solvent, a binder, a dispersing agent, a suspending agent and a degassing agent to prepare a stable and good-fluidity solid-liquid mixture of metal powder slurry or suspension, dispersion, a complex and colloid, wherein the organic solvent is one or more of glycerol, diethylene glycol, cyclohexanol, butanol, ethanol, isopropanol, ethyl acetate, butyl acetate, acetic acid, acetone, ethylene glycol dimethyl ether, ethylene glycol monomethyl ether and hexane, and the suspending agent is one or more of stearic acid, ammonium hydroxide, hydrochloric acid, propylene glycol, acetate starch, tara gum, xanthan gum, guar gum, carrageenan and polyacrylic acid;
(2) establishing a printing model by using three-dimensional software, and setting laser process parameters, wherein the laser process parameters comprise: the power is 30-600W, and the scanning speed is 20-400 mm/s;
(3) filling the prepared metal powder slurry into a storage tank, and performing SLM printing;
(4) and taking out the printed metal finished product for post-treatment.
2. 3D printing method of a metallic material according to claim 1, characterized in that:
(1) the metal powder is one or more of aluminum, cobalt, chromium, iron, nickel, titanium, zirconium, manganese, molybdenum, vanadium, antimony, scandium, yttrium, niobium, ruthenium, rhodium, palladium, lutetium, hafnium, tantalum, tungsten, rhenium, osmium, iridium, platinum, gold, silver, copper, zinc, tin, germanium, magnesium and lead, and the particle size is 0.01-100 mu m;
(2) the binder is one or more of polyvinyl acetate, polyvinyl acetal, polyvinyl alcohol and polyacrylate; the dispersant is one or more of polyacrylic acid, polymethacrylic acid, ammonium alginate, ethanol, polyethylene glycol, polyacrylamide and methylpentanol; the degasifier is one or more of n-octanol, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether and higher alcohol;
(3) preparing solid-liquid mixture such as metal powder slurry or suspension, dispersion liquid, complex and colloid, putting metal powder, organic solvent, binder, dispersant, suspending agent and degasifier into a beaker, and mixing and dispersing the powder slurry uniformly by a dispersion machine.
3. 3D printing method of a metallic material according to claim 1, characterized in that: the storage tank is connected with the heating and cooling system and is used for adjusting the fluidity and the viscosity of the metal powder slurry.
4. 3D printing method of a metallic material according to claim 1, characterized in that: the bottom of the storage tank is provided with a transparent plate, the laser source system is arranged below the storage tank, and laser penetrates through the storage tank to print the metal powder slurry.
5. 3D printing method of a metallic material according to claim 1, characterized in that: in the SLM printing process, the printing platform slowly rises from the bottom of the storage tank until printing is finished.
6. 3D printing method of a metallic material according to claim 1, characterized in that: and taking out the printed metal finished product, and washing off the organic solvent and the additive adhered to the surface by using absolute ethyl alcohol to obtain the finished product.
CN201911041836.5A 2019-10-30 2019-10-30 3D printing method of metal material Active CN110756804B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911041836.5A CN110756804B (en) 2019-10-30 2019-10-30 3D printing method of metal material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911041836.5A CN110756804B (en) 2019-10-30 2019-10-30 3D printing method of metal material

Publications (2)

Publication Number Publication Date
CN110756804A CN110756804A (en) 2020-02-07
CN110756804B true CN110756804B (en) 2022-06-14

Family

ID=69334784

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911041836.5A Active CN110756804B (en) 2019-10-30 2019-10-30 3D printing method of metal material

Country Status (1)

Country Link
CN (1) CN110756804B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022036207A1 (en) * 2020-08-14 2022-02-17 Mantle Inc. Drying during additive and subtractive manufacturing
CN112820875A (en) * 2020-12-30 2021-05-18 南京信息工程大学滨江学院 Aluminum air battery aluminum anode slurry for 3D printing and preparation method and application thereof
CN114226717B (en) * 2021-12-24 2023-06-06 佛山市南海区广工大数控装备协同创新研究院 Hydrogel-based metal slurry and preparation method thereof
CN115958204A (en) * 2022-11-03 2023-04-14 山东科技大学 Different SLM 3D printer of putting of no powder bed
CN116251963B (en) * 2023-01-13 2024-08-09 吉林大学 Nickel-manganese-tin-cobalt alloy with room temperature magnetic phase change performance and efficient additive manufacturing method and application thereof
CN117358926B (en) * 2023-12-05 2024-02-13 天津大学 Preparation method of germanium diaphragm array and light field imaging system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101518820A (en) * 2009-03-31 2009-09-02 北京科技大学 Method for extruding and molding metal powder gelatin
WO2013167448A1 (en) * 2012-05-11 2013-11-14 Universite De Lorraine Use of a complex metal alloy containing aluminum for stereolithography
CN103801697A (en) * 2014-02-11 2014-05-21 北京科技大学 Method for forming mould-free gel with metal sizing agents through 3D printing
CN104325538A (en) * 2014-08-29 2015-02-04 中南大学 Improved direct writing forming method for preparing three-dimensional structure
CN107214949A (en) * 2017-06-21 2017-09-29 刘彦君 A kind of photocuring metal paste and preparation method thereof
CN107353036A (en) * 2017-08-21 2017-11-17 广东工业大学 A kind of porous silicon nitride ceramic based on increases material manufacturing technology, its preparation method and its application
CN207523030U (en) * 2017-11-22 2018-06-22 上海联泰科技股份有限公司 3D printing equipment and its construction platform
CN108456457A (en) * 2016-12-12 2018-08-28 中南大学 3D direct write zirconia ceramics inks
CN109400177A (en) * 2018-10-30 2019-03-01 西安点云生物科技有限公司 For the ceramic material of 3D Stereolithography printing and the preparation method of ceramic objects

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101518820A (en) * 2009-03-31 2009-09-02 北京科技大学 Method for extruding and molding metal powder gelatin
WO2013167448A1 (en) * 2012-05-11 2013-11-14 Universite De Lorraine Use of a complex metal alloy containing aluminum for stereolithography
CN103801697A (en) * 2014-02-11 2014-05-21 北京科技大学 Method for forming mould-free gel with metal sizing agents through 3D printing
CN104325538A (en) * 2014-08-29 2015-02-04 中南大学 Improved direct writing forming method for preparing three-dimensional structure
CN108456457A (en) * 2016-12-12 2018-08-28 中南大学 3D direct write zirconia ceramics inks
CN107214949A (en) * 2017-06-21 2017-09-29 刘彦君 A kind of photocuring metal paste and preparation method thereof
CN107353036A (en) * 2017-08-21 2017-11-17 广东工业大学 A kind of porous silicon nitride ceramic based on increases material manufacturing technology, its preparation method and its application
CN207523030U (en) * 2017-11-22 2018-06-22 上海联泰科技股份有限公司 3D printing equipment and its construction platform
CN109400177A (en) * 2018-10-30 2019-03-01 西安点云生物科技有限公司 For the ceramic material of 3D Stereolithography printing and the preparation method of ceramic objects

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
金属粉末粉浆浇筑工艺流程;还原铁粉 巩义市仁和冶金材料有限公司;《金属粉末粉浆浇筑工艺流程》《www.iron-powder.cn/knowledge/20171109.html》;20171030;全文 *

Also Published As

Publication number Publication date
CN110756804A (en) 2020-02-07

Similar Documents

Publication Publication Date Title
CN110756804B (en) 3D printing method of metal material
CN110756805B (en) 3D printing device for laser selective solidification metal and application method thereof
CN103801697B (en) A kind of metal paste 3D prints without mould gel forming method
CN105058789B (en) A kind of 3D printing equipment suitable for many material workpiece
CN206065415U (en) A kind of selective laser of variable cross section melts forming worktable
CN110842204B (en) 3D printing method for selective laser solidified metal
JP7191550B2 (en) Article manufacturing method
CN108405865B (en) 3D printing method of powder material
CN211071828U (en) 3D printing device for laser selective solidified metal
CN111940733A (en) Device and method for removing splashed oxide and compensating powder supply in selective laser melting process
CN108124436B (en) Powder sintering 3D printing system and powder supply method thereof
Miclette et al. Material extrusion additive manufacturing of low-viscosity metallic feedstocks: Performances of the plunger-based approach
CN110125417B (en) Composite green body and method for additive manufacturing of metal parts using the same
CN109848417B (en) Low-melting-point metal wire for 3D printing and preparation method thereof
CN1739893A (en) Pressure difference casting process of preparing in-situ aluminium base composite material
JP7516488B2 (en) Manufacturing method of the article
CN113977740B (en) Preparation method and device of high-tap-density high-stability ceramic blank
CN110724376B (en) Efficient high-strength heat conducting fin and preparation method thereof
CN108637250B (en) Aluminum alloy weight-reducing part forming method
CN113732306A (en) Process method for melting and forming aluminum alloy micro aircraft parts in selective laser area
US20240279126A1 (en) Polycrystalline diamond composite sheet having ripple-shaped gradient layer and preparation method thereof
CN110856979A (en) Lifting device for laminated manufacturing and operation method thereof
CN114734054B (en) Embedded substrate and 3D printing method based on substrate
CN111154350A (en) Three-dimensional printing support material and manufacturing method
CN213997794U (en) SLM equipment and quick-change reducing forming device thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20211215

Address after: No. 1088, Xueyuan Avenue, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province

Applicant after: Southern University of Science and Technology

Address before: No. 1088, Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518000

Applicant before: Southern University of Science and Technology

Applicant before: He Jing

GR01 Patent grant
GR01 Patent grant