CN116921696A - Forming method for forming tungsten-based composite material based on laser 3D printing - Google Patents
Forming method for forming tungsten-based composite material based on laser 3D printing Download PDFInfo
- Publication number
- CN116921696A CN116921696A CN202310897401.0A CN202310897401A CN116921696A CN 116921696 A CN116921696 A CN 116921696A CN 202310897401 A CN202310897401 A CN 202310897401A CN 116921696 A CN116921696 A CN 116921696A
- Authority
- CN
- China
- Prior art keywords
- tungsten
- forming
- laser
- composite material
- printing
- 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.)
- Pending
Links
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 38
- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 33
- 239000010937 tungsten Substances 0.000 title claims abstract description 33
- 238000010146 3D printing Methods 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000011812 mixed powder Substances 0.000 claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000012300 argon atmosphere Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 12
- 230000007547 defect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000654 additive Substances 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/12—Metallic powder containing non-metallic particles
-
- 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
- B22F10/366—Scanning parameters, e.g. hatch distance or scanning strategy
-
- 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
- B22F10/80—Data acquisition or data processing
- B22F10/85—Data acquisition or data processing for controlling or regulating additive manufacturing processes
-
- 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
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- 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
Abstract
The invention relates to a forming method for forming a tungsten-based composite material based on laser 3D printing, and belongs to the technical field of 3D printing. The method comprises the following steps: s1, mixing pure tungsten powder and nano lanthanum oxide powder to obtain mixed powder, wherein the mass fraction of lanthanum oxide in the mixed powder is 2%; and S2, carrying out laser 3D printing forming on the mixed powder to prepare a lanthanum oxide reinforced tungsten-based composite material sample. The invention can effectively reduce the defects of cracks and the like of the tungsten sample formed by laser 3D printing and improve the mechanical property of the tungsten sample. According to the invention, the W-2% La2O3 matrix is formed by using low energy density, so that the effects of preheating and reducing the concave depth of the substrate are achieved, and a tungsten sample with better density is obtained under the optimized laser 3D printing process parameters.
Description
Technical Field
The invention belongs to the field of 3D printing, and relates to a forming method for forming a tungsten-based composite material based on laser 3D printing.
Background
Tungsten is a rare metal with high melting point and high hardness, and is widely applied to the fields of medical treatment and military industry. Meanwhile, tungsten has good heat conductivity and neutron loading capacity and lower sputtering yield, and can be used as a plasma-oriented divertor material in future nuclear fusion equipment. However, tungsten itself is difficult to form due to its hard brittleness. The main processing modes at present are powder metallurgy and metal injection molding. These conventional machining methods are complicated in process and have many restrictions on the shape and size of the formed part.
Laser additive manufacturing technology, also known as laser 3d printing technology, is an emerging rapid prototyping technology. The technology is rapidly developed in the last decades, and the main implementation method is that firstly, a three-dimensional model is built by using computer aided design software, and a laser moving path is planned; and then taking laser as an energy source, melting and solidifying the metal powder according to the planned path, and stacking the metal powder layer by layer to form the three-dimensional solid part. Compared with the traditional processing mode, the method has the main advantages that: (1) Compared with the traditional cutting, grinding and other material reduction processing modes, the additive manufacturing method has the advantages that the material utilization rate is higher, little waste and even zero waste can be achieved, and (2) the integrated forming can be realized, so that a larger design imagination space is provided for a designer. (3) The forming link is simple, and a complicated process flow is not needed, so that the method is in place.
At present, laser additive manufacturing processes of metal materials such as titanium alloy, aluminum alloy, nickel alloy, stainless steel and the like are mature, and the laser additive manufacturing processes are widely applied to various fields such as aerospace, medical treatment, automobile manufacturing and the like. There are certain difficulties with laser additive manufacturing of tungsten materials, primarily due to the physical properties of tungsten itself. Because the tungsten itself has high ductile-brittle transition temperature (180-400 ℃) and shows brittleness, and simultaneously, great thermal stress is brought to the tungsten under the action of high-energy laser, the tungsten laser 3d printing sample is easy to generate defects such as cracks, and the mechanical property of the sample is influenced.
Disclosure of Invention
Accordingly, the present invention is directed to a forming method for forming a tungsten-based composite material based on laser 3D printing, which can effectively reduce the defects such as cracks of a tungsten sample formed by laser 3D printing, and improve the mechanical properties of the tungsten sample.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a forming method for forming a tungsten-based composite material based on laser 3D printing comprises the following steps:
s1, mixing pure tungsten powder and nano lanthanum oxide powder to obtain mixed powder;
s2, performing laser 3D printing forming by using the mixed powder.
Optionally, in step S1, the mass fraction of lanthanum oxide is 2%.
Optionally, step S11 is further included between step S1 and step S2, and the mixed powder is fully mixed.
Optionally, in step S11, the mixed powder is argon-shielded using a ball mill.
Optionally, step S2 includes preparing the substrate and preparing the entity.
Optionally, the molding parameters of the preparation matrix are: the laser power is 200W, the scanning speed is 250mm/s, the scanning interval is 80 mu m, the layer thickness is 5 mu m, and the substrate height is 1 mu m.
Optionally, the molding parameters of the preparation entity are: the laser power is 200W-240W, the scanning speed is 200mm/s, the scanning interval is 80 mu m, and the layer thickness is 25 mu m.
Optionally, argon atmosphere protection is used in the preparation process of the step S2, and the oxygen content is controlled below 0.5%.
Optionally, step S2 further includes: and establishing a matrix and entity three-dimensional model with the height of 1 mu m by using CAD software in a computer, and performing slicing layering and laser path planning by using 3D printing slicing software.
Optionally, the method further comprises step S3: and (3) polishing the sample obtained in the step (S2), cleaning to remove surface dirt, measuring the density by using an Archimedes drainage method, and calculating the density according to the theoretical density.
Optionally, in step S1, the particle size of the pure tungsten powder is in the range of 5-25 μm, the purity is above 99.9%, and the oxygen content is below 100 ppm; the average size of the lanthanum oxide nano particles is 50nm, and the purity is over 99.99 percent.
The invention has the beneficial effects that:
according to the invention, the W-2% La2O3 matrix is formed by using low energy density, so that the effects of preheating and reducing the concave depth of the substrate are achieved, and a tungsten sample with better density is obtained under the optimized laser 3D printing process parameters.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a base, physical, substrate location;
fig. 2 is a schematic diagram of a molded sample.
Reference numerals: a body 1, a base body 2 and a substrate 3.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Examples
The embodiment provides a laser 3D printing preparation method of a lanthanum oxide reinforced tungsten-based composite material, which comprises the following steps:
step one: weighing and mixing pure tungsten powder (5-25 mu m) and nano lanthanum oxide powder (50-100 nm), wherein the pure tungsten powder accounts for 98% of the mixed powder in mass percent, and the lanthanum oxide powder accounts for 2% of the mixed powder in mass percent.
Step two: placing the mixed powder into a ball mill for fully mixing, filling argon into a ball mill tank for protection in order to avoid oxidation of the powder in the mixing process, and simultaneously, not adding grinding balls in the mixing process for 2 hours in order to avoid damage to sphericity of tungsten powder to obtain W-2% La 2 O 3 The powder was stored in a vacuum atmosphere.
Step three: establishing a matrix and entity three-dimensional model with the height of 1 mu m by using CAD software in a computer, slicing and layering by using 3D printing slicing software, and planning a laser path (the model is shown in figure 1); the layer thickness was set to 25 μm; placing a stainless steel substrate 3 in the forming cavity, placing the powder obtained by mixing in the second step in a powder cylinder, and filling argon into the sealed forming cavity; layer-by-layer processing is performed according to the process parameters set by the software, the substrate 2 is set with laser power of 200W, scanning speed of 250mm/s, scanning interval of 80 μm and layer thickness of 25 μm, the entity 1 is set with laser power of 200W-240W, scanning speed of 200mm/s, scanning interval of 80 μm and layer thickness of 25 μm until the set forming height is reached (the sample is shown in FIG. 2).
Step four: polishing a sample obtained by laser 3D printing, cleaning to remove surface dirt, measuring the density of the sample by an Archimedes drainage method, and calculating the density of the sample according to the theoretical density.
Table 1 shows W-2% La prepared by laser 3D printing of the additive matrix 2 O 3 The average density of the composite material sample is 96.39% as can be seen from the table, and the forming window is larger.
TABLE 1 compactness of SLM samples under different Process parameters for bulk experiments after matrix addition
Comparative example
The embodiment provides a laser 3D printing preparation method of a lanthanum oxide reinforced tungsten-based composite material, which comprises the following steps:
establishing a three-dimensional model in a computer by utilizing CAD software, and slicing and layering by utilizing 3D printing slicing software, and planning a laser path; the layer thickness was set to 25 μm; placing a stainless steel substrate in a forming cavity, placing pure tungsten powder (particle size 5-25 mu m) in a powder cylinder, and filling argon into the sealed forming cavity; and (3) carrying out layer-by-layer processing according to the process parameters set by software, setting the laser power to be 200W-240W, the scanning speed to be 200mm/s, the scanning interval to be 80 mu m and the layer thickness to be 25 mu m until the set forming height is reached.
Step four: polishing a sample obtained by laser 3D printing, cleaning to remove surface dirt, measuring the density of the sample by an Archimedes drainage method, and calculating the density of the sample according to the theoretical density.
Table 2 shows W-2% La prepared by laser 3D printing without adding matrix 2 O 3 The average density of the composite material sample is 94.01% as can be seen from the table, and the forming window is smaller.
TABLE 2 Density of SLM samples without adding matrix blocks for different Process parameters
By combining the above examples, adding the matrix enlarges the forming process window of the entity, and the density of the entity is improved to some extent, the average density is improved from 94.01% to 96.39% (under the primary forming process window), and the density is improved to 2.38% as a whole, namely the laser 3D printing sample with higher density is obtained.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (10)
1. The forming method for forming the tungsten-based composite material based on laser 3D printing is characterized by comprising the following steps of:
s1, mixing pure tungsten powder and nano lanthanum oxide powder to obtain mixed powder;
s2, performing laser 3D printing forming by using the mixed powder.
2. The method for forming a tungsten-based composite material according to claim 1, wherein in step S1, the mass fraction of lanthanum oxide is 2%.
3. The method of forming a tungsten-based composite material according to claim 1, further comprising a step S11 of thoroughly mixing the mixed powder between the step S1 and the step S2.
4. A method of forming a tungsten-based composite material by laser 3D printing according to claim 3, wherein in step S11, the mixed powder is argon shielded using a ball mill.
5. The method of forming a tungsten-based composite material according to claim 1, wherein step S2 comprises preparing a matrix and preparing a solid body.
6. The method for forming a tungsten-based composite material according to claim 5, wherein the forming parameters for preparing the matrix are: the laser power is 200W, the scanning speed is 250mm/s, the scanning interval is 80 mu m, the layer thickness is 5 mu m, and the substrate height is 1 mu m.
7. The method of forming a tungsten-based composite material according to claim 5, wherein the forming parameters of the prepared body are: the laser power is 200W-240W, the scanning speed is 200mm/s, the scanning interval is 80 mu m, and the layer thickness is 25 mu m.
8. The method for forming a tungsten-based composite material based on laser 3D printing according to claim 1, wherein the oxygen content is controlled to be less than 0.5% by using argon atmosphere protection in the preparation process of step S2.
9. The method of forming a tungsten-based composite material based on laser 3D printing according to claim 1, wherein step S2 further comprises: and establishing a matrix and entity three-dimensional model with the height of 1 mu m by using CAD software in a computer, and performing slicing layering and laser path planning by using 3D printing slicing software.
10. The method of forming a tungsten-based composite material based on laser 3D printing according to claim 1, further comprising step S3: and (3) polishing the sample obtained in the step (S2), cleaning to remove surface dirt, measuring the density by using an Archimedes drainage method, and calculating the density according to the theoretical density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310897401.0A CN116921696A (en) | 2023-07-20 | 2023-07-20 | Forming method for forming tungsten-based composite material based on laser 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310897401.0A CN116921696A (en) | 2023-07-20 | 2023-07-20 | Forming method for forming tungsten-based composite material based on laser 3D printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116921696A true CN116921696A (en) | 2023-10-24 |
Family
ID=88378460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310897401.0A Pending CN116921696A (en) | 2023-07-20 | 2023-07-20 | Forming method for forming tungsten-based composite material based on laser 3D printing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116921696A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117600494A (en) * | 2024-01-24 | 2024-02-27 | 安庆瑞迈特科技有限公司 | Printing method for improving corrosion resistance and strength of 3D printing collimator |
-
2023
- 2023-07-20 CN CN202310897401.0A patent/CN116921696A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117600494A (en) * | 2024-01-24 | 2024-02-27 | 安庆瑞迈特科技有限公司 | Printing method for improving corrosion resistance and strength of 3D printing collimator |
| CN117600494B (en) * | 2024-01-24 | 2024-04-02 | 安庆瑞迈特科技有限公司 | Printing method for improving corrosion resistance and strength of 3D printing collimator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116921696A (en) | Forming method for forming tungsten-based composite material based on laser 3D printing | |
| CN109943786A (en) | A method of titanium-based nano composite material is prepared based on precinct laser fusion 3D printing | |
| CN111235417A (en) | High-performance aluminum-based composite material based on selective laser melting and forming and preparation method thereof | |
| CN105803271A (en) | Aluminium-based nanocomposite based on SLM forming and preparation method of nanocomposite | |
| CN107974595B (en) | A kind of high-performance magnesium-based composite material and preparation method thereof based on laser 3D printing forming | |
| CN107841654A (en) | A kind of increasing material manufacturing boracic titanium alloy powder and preparation method thereof | |
| CN105154701A (en) | Method for preparing high temperature titanium alloy by adopting selective laser melting rapid formation technique | |
| CN101333607A (en) | Process for preparing TiBw/Ti alloy-based composite material | |
| CN113000858B (en) | Graphene-high-entropy alloy composite material and selective laser melting preparation method thereof | |
| CN108941537B (en) | Method for 3D printing of special high-temperature alloy by using electron beams | |
| CN103752824B (en) | The preparation method of a kind of lightweight niobium-base alloy powder and parts | |
| CN102941343A (en) | Quick manufacturing method of titanium-aluminum alloy composite part | |
| CN105855566A (en) | Tantalum or niobium or tantalum and niobium alloy additive manufacturing method | |
| CN109317675A (en) | A kind of pure molybdenum precinct laser fusion preparation method of high-compactness | |
| CN112831678B (en) | Aluminum/aluminum fluoride composite ceramic neutron moderator and preparation method thereof | |
| CN111451501B (en) | Preparation method for laser additive manufacturing of tungsten part based on eutectic reaction | |
| CN112893839A (en) | Method for preparing Al1.2CoxCrFeNi high-entropy alloy through laser melting deposition | |
| CN110773740B (en) | Light energy-absorbing vibration-damping imitation microstructure and preparation method thereof | |
| CN110306074B (en) | Discharge plasma sintering preparation method of CERMET fuel pellet | |
| CN103060586B (en) | Preparation method for complex-shape niobium-based ODS (oxide dispersion strengthening) alloy | |
| CN108335769B (en) | A kind of preparation method and products thereof of reticular structure uranium dioxide/compound fuel ball of molybdenum | |
| CN102230100A (en) | Method for preparing Ti-Nb-Zr-Sn alloy by using powder metallurgical process | |
| CN109702187A (en) | A kind of tungsten alloy composite powder of graphene toughening and its preparation method and application | |
| US11718896B2 (en) | Nano-lanthanum oxide reinforced tungsten-based composite material and preparation method thereof | |
| CN108044122B (en) | Preparation method of Nb-Si-based alloy hollow turbine blade |
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 |