CN116638089A - Wire method for preparing arc additive manufacturing based on large-particle spherical metal powder - Google Patents
Wire method for preparing arc additive manufacturing based on large-particle spherical metal powder Download PDFInfo
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- CN116638089A CN116638089A CN202310930641.6A CN202310930641A CN116638089A CN 116638089 A CN116638089 A CN 116638089A CN 202310930641 A CN202310930641 A CN 202310930641A CN 116638089 A CN116638089 A CN 116638089A
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- 239000000843 powder Substances 0.000 title claims abstract description 126
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 112
- 239000002184 metal Substances 0.000 title claims abstract description 112
- 239000002245 particle Substances 0.000 title claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 51
- 239000000654 additive Substances 0.000 title claims abstract description 47
- 230000000996 additive effect Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000011812 mixed powder Substances 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 238000011049 filling Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 239000004482 other powder Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 101000686227 Homo sapiens Ras-related protein R-Ras2 Proteins 0.000 description 6
- 102100025003 Ras-related protein R-Ras2 Human genes 0.000 description 6
- 238000001513 hot isostatic pressing Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009689 gas atomisation Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
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- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
-
- 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
- B22F3/02—Compacting only
- B22F3/093—Compacting only using vibrations or friction
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/12—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of wires
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- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- 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
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention relates to the technical field of additive manufacturing, in particular to a wire method for manufacturing arc additive based on large-particle spherical metal powder, which comprises the following steps: obtaining mixed powder containing large-particle spherical metal powder; rolling the metal sheath with the same components as the large-particle spherical metal powder into a U shape; and filling the mixed powder into the metal sheath, and treating the metal sheath to obtain the powder core wire material for arc additive manufacturing. The powder core wire material and additive manufacturing has remarkable advantages in the aspects of large-particle powder application, element loss prevention, component regulation and control and the like.
Description
Technical Field
The invention relates to the technical field of additive manufacturing, in particular to a wire method for preparing arc additive manufacturing based on large-particle spherical metal powder.
Background
Along with the change of the processing mode, a 3D metal printing rapid prototyping technology is generated and rapidly developed, and the 3D printing is used for manufacturing solid parts in a layer-by-layer printing mode. 3D printing metal powder is an essential material basis for the development of 3D printing technology. At present, the demand of spherical metal powder for 15-53 mu m laser 3D in China is large. With the vigorous development of the domestic spherical metal powder industry, the industry chain is mature, but the problem is that byproducts of spherical metal manufacturing are caused, and a great amount of large-particle spherical metal powder is inevitably produced by the existing metal powder preparation technologies such as gas atomization, rotary atomization and the like.
The particle size interval of the spherical metal powder prepared by the gas atomization method or the rotary electrode method is 0-300 mu m, wherein the ratio of 0-15 mu m is 10%, and the spherical metal powder is used for injection molding; 15-53 μm 30% for laser selective melting (SLM); 53-300 μm is 60% and a very small portion of 53-105 μm powder is removed for electron beam selective melting (EBM), 53-300 μm powder has no large scale application route, resulting in a large amount of 53-300 μm being extruded in a warehouse while part of the metal powder such as aluminum, titanium, zirconium based is flammable, an important hazard source.
Chinese patent CN 114260454A discloses a method for preparing high quality spherical metal powder, comprising introducing metal powder with hydrogenation degree of 10% -100% into laser beam with powder-feeding air flow of 2-10L/min; under the action of laser energy, the metal simple substance or alloy powder which absorbs hydrogen is heated to expand and crush and dehydrogenate, and is quickly melted to form tiny molten drops, the molten drops are spheroidized under the action of surface tension, and the molten drops are quickly cooled and solidified to form spherical powder after being separated from a heating area. But the laser spheroidization rate is slow, the yield is low, the process of the method is complex, the production efficiency is low, and the method is in a laboratory research stage. Chinese patent CN 113787189A discloses die steel ball-shaped powder for additive manufacturing and a recycling method thereof, wherein coarse-grain-diameter powder is firstly subjected to hot isostatic pressing to form an ingot blank, then is processed into an electrode rod for powder preparation, and the fine-grain-diameter powder obtained after the powder preparation can be used for additive manufacturing, thereby completing recycling of the coarse-grain-diameter die steel powder. The path has multiple process steps, and simultaneously uses large-sized hot isostatic pressing equipment, so that the production cost is high.
In view of the above, the invention provides an application method of large-particle spherical metal powder, which solves the problem that large-particle metal powder of 53-300 μm cannot be applied on a large scale.
Disclosure of Invention
The invention aims to provide a wire method for manufacturing arc additive based on large-particle spherical metal powder, which is used for solving the problems.
To achieve the above object, the present invention provides a wire method for arc additive manufacturing based on large-particle spherical metal powder, the method comprising:
obtaining mixed powder containing large-particle spherical metal powder;
rolling the metal sheath with the same components as the large-particle spherical metal powder into a U shape;
filling the mixed powder into the metal sheath, and processing the metal sheath to obtain a powder core wire material for arc additive manufacturing;
wherein the particle size of the large-particle spherical metal powder is 53-300 mu m.
Alternatively, a mixed powder containing large-particle spherical metal powder is obtained, comprising:
mixing large-particle spherical metal powder in different batches to obtain mixed powder; or mixing the large-particle spherical metal powder with other powder to obtain the mixed powder.
Optionally, the other powders include: reinforcing phase particles of metal.
Optionally, filling the mixed powder into the metal sheath includes: and filling the mixed powder into the metal sheath through a vibration feeder.
Optionally, the processing of the metal skin includes: rolling treatment, drawing treatment, cleaning treatment and layer winding treatment.
Optionally, the diameter of the cored wire is 1.7-2.3mm.
Optionally, the method further comprises: and melting and forming the powder core wire by using arc additive manufacturing equipment.
Optionally, the process parameters of the arc additive manufacturing apparatus include: the ratio of the wire feeding speed to the scanning speed, the current intensity and the included angle between the powder core wire and the substrate.
Optionally, the ratio of the wire feeding speed to the scanning speed is (8-25) 1, the current intensity is 80-160A, and the included angle between the powder core wire and the substrate is 5-15 degrees.
The invention has the technical effects and advantages that:
compared with the method that large-particle powder is subjected to hydrogenation and then is subjected to spheroidization by a laser or plasma heat source or is subjected to ingot casting by adopting a hot isostatic pressing mode, the method has a simple process, and solves the problem that 53-300 mu m large-particle metal powder cannot be applied on a large scale. In addition, the powder core wire is used as a typical 'wrapper powder' structure, and powder is contained in the powder core wire molten drops, so that the required energy is less than that of a solid core wire, the energy is saved, the heat accumulation of a molten pool is reduced, the exposure time of elements in an arc area is reduced by a molten drop cavity formed in the arc area, the volatilization of the elements due to the influence of vapor pressure is reduced, and the problem of element burning loss in the wire arc additive manufacturing process is solved. Meanwhile, compared with wire arc additive manufacturing, the invention can conveniently regulate and control components, for example, powder of other reinforcing phase particles can be mixed into 53-300 mu m powder, and the mechanical property of an arc additive manufactured molded part can be enhanced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
FIG. 1 is a flow chart of a method for preparing wire for arc additive manufacturing based on large particle spherical metal powder.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, the structures, proportions, sizes and the like shown in the drawings attached to the present specification are used for understanding and reading only in conjunction with the disclosure of the present specification, and are not intended to limit the applicable limitations of the present invention, so that any modification of the structures, variation of proportions or adjustment of sizes of the structures, proportions and the like should not be construed as essential to the present invention, and should still fall within the scope of the disclosure of the present invention without affecting the efficacy and achievement of the present invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
In order to solve the defects in the prior art, the invention discloses a wire method for preparing arc additive manufacturing based on large-particle spherical metal powder, which comprises the following steps: obtaining mixed powder containing large-particle spherical metal powder; rolling the metal sheath with the same components as the large-particle spherical metal powder into a U shape; and filling the mixed powder into the metal sheath, and treating the metal sheath to obtain the powder core wire material for arc additive manufacturing.
Compared with the method that large-particle powder is subjected to hydrogenation and then is subjected to spheroidization by a laser or plasma heat source or is subjected to ingot casting by adopting a hot isostatic pressing mode, the method has a simple process, and solves the problem that 53-300 mu m large-particle metal powder cannot be applied on a large scale. In addition, the powder core wire is used as a typical 'wrapper powder' structure, and powder is contained in the powder core wire molten drops, so that the required energy is less than that of a solid core wire, the energy is saved, the heat accumulation of a molten pool is reduced, the exposure time of elements in an arc area is reduced by a molten drop cavity formed in the arc area, the volatilization of the elements due to the influence of vapor pressure is reduced, and the problem of element burning loss in the wire arc additive manufacturing process is solved. Meanwhile, compared with wire arc additive manufacturing, the invention can conveniently regulate and control components, for example, powder of other reinforcing phase particles can be mixed into 53-300 mu m powder, and the mechanical property of an arc additive manufactured molded part can be enhanced.
In order to better explain the present invention, a wire method for manufacturing arc additive manufacturing based on large-particle spherical metal powder is explained in detail below with reference to fig. 1.
The invention aims to solve the problem that the existing 53-300 mu m large-particle spherical metal powder cannot be applied, and provides an application method of the large-particle spherical metal powder, which comprises the following specific steps:
(1) Obtaining mixed powder, such as uniformly mixing large-particle spherical metal powder or uniformly mixing large-particle spherical metal powder with other powder; it should be noted that the large-particle spherical metal powder herein may also be a metal powder of other shapes.
(2) Rolling the metal skin into a U shape;
(3) Filling the mixed powder into the metal skin through a vibrating feeder;
(4) The metal sheath is rolled, drawn, cleaned and wound in layers in sequence to obtain the powder core wire material for manufacturing the arc additive with the required diameter;
(5) And melting and forming the powder core wire by adopting arc additive manufacturing equipment.
The particle size of the large-particle spherical metal powder is 53-300 mu m, the preparation method is an air atomization method or a rotating electrode method, and other powder is reinforcing phase particles of metal (no shape requirement is required for the particles).
It should be noted that the composition of the metal sheath is the same as that of the filler powder, and that the composition of the metal sheath, i.e., the composition of the metal sheath is the same as that of the large-particle powder in the filler powder, may be disregarded because the reinforcing phase of the metal has a low particle content.
It should also be noted that the diameter of the cored wire is 1.7-2.3mm.
It should also be noted that the process parameters of the arc additive manufacturing apparatus include: the wire feeding speed and the scanning speed (8-25) are 1, the current intensity is 80-160A, and the included angle between the wire and the substrate is 5-15 degrees.
In order to demonstrate the technical effects of the present solution, the following examples are also provided.
Example 1
(1) Uniformly mixing different batches of 53-300 mu mTc4 large-particle spherical metal powder;
(2) Rolling TC4 metal skin into U shape;
(3) Filling TC4 large-particle spherical metal powder into a TC4 metal sheath through a vibration feeder;
(4) Rolling TC4 metal skin, and drawing to obtain a powder core wire with the diameter of 2.3mm TC4;
(5) And melting and forming the powder core wire by adopting arc additive manufacturing equipment, wherein the wire feeding speed is 2.4m/min, the scanning speed is 0.3m/min, the current intensity is 130A, and the included angle between the TC4 powder core wire and the substrate is 9 degrees.
Example 2
(1) Uniformly mixing 53-300 mu mTc4 large-particle spherical metal powder with yttrium powder with purity of 99.9% and granularity of 30-53 mu m, wherein the mass ratio of TC4 large-particle spherical metal powder to yttrium powder is 1:0.003;
(2) Rolling TC4 metal skin into U shape;
(3) Filling the mixed metal powder into the TC4 metal sheath through a vibration feeder;
(4) Rolling the outer skin, and drawing to obtain a powder core wire with the diameter of 2.1 mTc 4;
(5) And melting and forming the powder core wire by adopting arc additive manufacturing equipment, wherein the wire feeding speed is 1.8m/min, the scanning speed is 0.22m/min, the current intensity is 140A, and the included angle between the TC4 powder core wire and the substrate is 10 degrees.
Example 3
(1) Uniformly mixing different batches of 53-300 mu mTA15 large-particle spherical metal powder;
(2) Rolling the TA15 metal skin into a U shape;
(3) Filling TA15 large-particle spherical metal powder into the TA15 metal skin through a vibration feeder;
(4) Rolling and drawing the TA15 metal skin to obtain a powder core wire with the diameter of 1.9mm TA 15;
(5) And melting and forming the powder core wire by adopting arc additive manufacturing equipment, wherein the wire feeding speed is 1.6m/min, the scanning speed is 0.3m/min, the current intensity is 160A, and the included angle between the TA15 powder core wire and the substrate is 12 degrees.
Example 4
(1) Uniformly mixing different batches of 53-300 mu mTc21 large-particle spherical metal powder;
(2) Rolling TC21 metal skin into U shape;
(3) Filling TC21 large-particle spherical metal powder into a TC21 metal sheath through a vibration feeder;
(4) Rolling TC21 metal skin, and drawing to obtain a powder core wire with the diameter of 1.9mm TC21;
(5) And melting and forming the powder core wire by adopting arc additive manufacturing equipment, wherein the wire feeding speed is 1.6m/min, the scanning speed is 0.3m/min, the current intensity is 160A, and the included angle between the TC21 powder core wire and the substrate is 12 degrees.
The mechanical properties of the printed parts were tested on the mixed powders of the examples, and the results are shown in table 1 below:
table 1 mechanical properties test data sheet for mixed powders in examples
From this, the tensile strength of the printed matter of the core-spun powder TC4 in example 2 is 970MPa, and the elongation is 13.3%; example 3 the tensile strength of the clad core powder TA15 printing piece is 982MPa, the elongation is 15.2%, the requirements of GB/T38915-2020 high temperature titanium alloy forgings for aerospace are met, the tensile strength of TC4 forgings is more than or equal to 895MPa, the elongation is more than or equal to 10%, the tensile strength of TA15 forgings is more than or equal to 885MPa, and the elongation is more than or equal to 8%.
The present invention provides a method for preparing wire for arc additive manufacturing by a method based on large particle spherical metal powder, the method comprising: obtaining mixed powder containing large-particle spherical metal powder; rolling the metal sheath with the same components as the large-particle spherical metal powder into a U shape; filling the mixed powder into the metal sheath, and processing the metal sheath to obtain the powder core wire material for arc additive manufacturing. The powder core wire material and additive manufacturing has remarkable advantages in the aspects of large-particle powder application, element loss prevention, component regulation and control and the like.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. A method of preparing wire for arc additive manufacturing based on large particle spherical metal powder, the method comprising:
obtaining mixed powder containing large-particle spherical metal powder;
rolling the metal sheath with the same components as the large-particle spherical metal powder into a U shape;
filling the mixed powder into the metal sheath, and processing the metal sheath to obtain a powder core wire material for arc additive manufacturing;
wherein the particle size of the large-particle spherical metal powder is 53-300 mu m.
2. The method for producing a wire for arc additive manufacturing based on large-particle spherical metal powder according to claim 1, wherein a mixed powder containing large-particle spherical metal powder is obtained, comprising:
mixing large-particle spherical metal powder in different batches to obtain mixed powder; or mixing the large-particle spherical metal powder with other powder to obtain the mixed powder.
3. The method of preparing wire for arc additive manufacturing based on large particle spherical metal powder according to claim 2, wherein the other powders comprise: reinforcing phase particles of metal.
4. The method for preparing wire for arc additive manufacturing based on large particle spherical metal powder according to claim 1, wherein filling the mixed powder into the metal sheath comprises: and filling the mixed powder into the metal sheath through a vibration feeder.
5. The method of preparing wire for arc additive manufacturing based on large particle spherical metal powder according to claim 1, wherein the treatment of the metal sheath comprises: rolling treatment, drawing treatment, cleaning treatment and layer winding treatment.
6. The method for preparing wire for arc additive manufacturing based on large particle spherical metal powder according to claim 1, wherein the diameter of the cored wire is 1.7-2.3mm.
7. The method of preparing wire for arc additive manufacturing based on large particle spherical metal powder of claim 6, further comprising: and melting and forming the powder core wire by using arc additive manufacturing equipment.
8. The method for preparing wire for arc additive manufacturing based on large particle spherical metal powder according to claim 7, wherein the process parameters of the arc additive manufacturing equipment include: the ratio of the wire feeding speed to the scanning speed, the current intensity and the included angle between the powder core wire and the substrate.
9. The method of preparing wire for arc additive manufacturing based on large particle spherical metal powder according to claim 8, wherein the ratio of wire feed speed to scan speed is (8-25) 1, the current intensity is 80-160A, and the angle between the cored wire and the substrate is 5 ° -15 °.
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| CN202310930641.6A CN116638089A (en) | 2023-07-27 | 2023-07-27 | Wire method for preparing arc additive manufacturing based on large-particle spherical metal powder |
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| CN111451490A (en) * | 2020-05-25 | 2020-07-28 | 华中科技大学 | Metal type powder core wire material and preparation method and application thereof |
| CN111843282A (en) * | 2020-08-03 | 2020-10-30 | 华中科技大学 | Ceramic particle heat insulation and enhancement aluminum alloy powder core wire material, preparation method and application |
| CN114043121A (en) * | 2021-12-15 | 2022-02-15 | 深圳职业技术学院 | Powder-cored welding wire for additive manufacturing and preparation method and application thereof |
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| CN115889791A (en) * | 2022-10-11 | 2023-04-04 | 成都先进金属材料产业技术研究院股份有限公司 | Rare earth reinforced titanium-based composite material and preparation method thereof |
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| CN114043121A (en) * | 2021-12-15 | 2022-02-15 | 深圳职业技术学院 | Powder-cored welding wire for additive manufacturing and preparation method and application thereof |
| CN115609006A (en) * | 2022-09-26 | 2023-01-17 | 哈尔滨工业大学（威海） | Nickel-based alloy powder core wire, preparation method and method for additive manufacturing of nickel-based alloy |
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