CN113369671A - High-entropy alloy stirring friction material increasing device and preparation process - Google Patents
High-entropy alloy stirring friction material increasing device and preparation process Download PDFInfo
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- CN113369671A CN113369671A CN202110784736.2A CN202110784736A CN113369671A CN 113369671 A CN113369671 A CN 113369671A CN 202110784736 A CN202110784736 A CN 202110784736A CN 113369671 A CN113369671 A CN 113369671A
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- entropy alloy
- friction
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- heat sink
- stirring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
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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
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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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a high-entropy alloy stirring friction material increasing device and a preparation process, and the device comprises a stirring head, wherein a heat sink module is arranged at the upper end of the stirring head, a feed inlet is arranged at one side of the heat sink module, a cooling liquid outlet and a cooling liquid inlet are sequentially and vertically arranged at the lower end of the feed inlet, a rotary friction mechanism is arranged in an inner cavity of the heat sink module, a crushing mechanism is arranged at the upper end of the rotary friction mechanism, a driving module is arranged at the upper end of the heat sink module, pure metal wires with different thicknesses are fed into the feed inlet, are rapidly rotated and crushed by a grinding wheel to obtain sheet-shaped sheets, are thermally fused by a friction rotating mechanism and then are cooled, and are stacked layer by layer after solidification to finish high-entropy alloy material increasing manufacturing. The experimental progress of the new high-entropy alloy material is accelerated.
Description
Technical Field
The invention relates to the technical field of metal additive, in particular to a high-entropy alloy friction stir additive device and a preparation process thereof.
Background
In the friction stir manufacturing, friction heat and plastic deformation heat are generated on a friction surface and its vicinity by a stirring motion of a stirring head under a constant or increasing pressure and torque, and the temperature of its vicinity is increased to a temperature range close to but generally lower than the melting point, so that the deformation resistance of the material is reduced, the plasticity is improved, an oxide film at the interface is broken, and the material is plastically deformed and flowed by a ram pressure, and molecular diffusion and recrystallization at the interface are performed.
Additive manufacturing is distinguished from subtractive manufacturing, which refers to removing material from a blank to obtain a desired part or structure. The material increase can be simply understood as a 3D printing technology, the existing stirring friction material increase technology is to carry out high-entropy alloy material increase manufacturing, the high-entropy alloy is required to be prepared into a wire or powder material firstly, then the friction material increase is carried out, and the steps are complex.
Disclosure of Invention
The invention aims to provide a high-entropy alloy friction stir material increasing device and a preparation process, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high entropy alloy friction stir material device, includes the stirring head, the stirring head upper end is equipped with heat sink module, heat sink module one side is equipped with the feed inlet, the feed inlet lower extreme has set gradually coolant liquid delivery port and coolant liquid water inlet perpendicularly, heat sink module inner chamber is equipped with rotary friction mechanism, rotary friction mechanism upper end is equipped with rubbing crusher and constructs, heat sink module upper end is equipped with the drive module.
Preferably, the rotary friction mechanism comprises a rotary shaft, a plurality of rotary blades are arranged on the rotary shaft, and collecting port tools are further arranged on two sides of the upper end of the rotary shaft.
Preferably, the grinding mechanism comprises a grinding wheel, fixed blocks are further arranged on two sides of the grinding mechanism, and the grinding mechanism is rotationally connected with the rotary friction mechanism.
Preferably, the stirring head is rotatably connected with the rotary friction mechanism.
Preferably, a stepping motor is arranged in the driving module, and the output end of the stepping motor is connected with the crushing mechanism.
Preferably, the rotary friction mechanism is connected with the coolant outlet and the coolant inlet in a penetrating manner.
The invention also provides a preparation process for preparing the high-entropy alloy friction stir additive by using the high-entropy alloy friction stir additive device, which comprises the following steps:
feeding pure metal wires with different thicknesses into a feeding hole through a feeding mechanism;
feeding the fed pure metal wire into a crushing mechanism, and crushing to obtain a flaky sheet;
thirdly, enabling the crushed pure metal sheet to flow into a rotary friction mechanism for stirring and friction to obtain a fused and softened metal base material;
step four, the fused and softened metal base material flows to the substrate from the opening of the stirring head, and further friction and stirring treatment are carried out;
fifthly, cooling the dynamic metal base material after further friction and stirring;
and step six, after the cooled and recrystallized metal base materials are accumulated layer by layer, the high-entropy alloy friction stir material additive manufacturing is completed.
Preferably, in the step one, the number of the pure metal wires is five or more.
Preferably, in the second step, the pulverized sheet material is a sheet-shaped powder in which the metal wire with a low melting point is large and the metal with a high melting point is pulverized into a sheet-shaped powder in which the metal wire with a high melting point is small.
Preferably, in the fifth step, cooling solidification is performed by circulating a cooling liquid.
Advantageous effects
The invention relates to a high-entropy alloy friction stir material increasing device and a preparation process, in particular to a friction stir welding method, which is characterized in that a high-entropy alloy original metal wire is firstly crushed, metal powder generates heat and is fused through friction stir welding, and the metal powder is combined layer by layer at a temperature lower than a melting point.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Reference numerals
1-stirring head, 2-cooling liquid water inlet, 3-cooling liquid water outlet, 4-feeding port, 5-driving module, 6-crushing mechanism, 7-collecting port tool, 8-rotating shaft, 9-heat sink module, 10-rotating friction mechanism, 11-rotating blade and 12-fixed block.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Examples
As shown in fig. 1, the high-entropy alloy stirring friction material increasing device comprises a stirring head 1, wherein a heat sink module 9 is arranged at the upper end of the stirring head 1, a feed inlet 4 is arranged on one side of the heat sink module 9, a coolant outlet 3 and a coolant inlet 2 are sequentially and vertically arranged at the lower end of the feed inlet 4, a rotary friction mechanism 10 is arranged in an inner cavity of the heat sink module 9, a crushing mechanism 6 is arranged at the upper end of the rotary friction mechanism 10, a driving module 5 is arranged at the upper end of the heat sink module 9, a stepping motor is arranged in the driving module 5, and the output end of the stepping motor is connected with the crushing mechanism 6; the stirring head 1 is rotatably connected with a rotary friction mechanism 10.
Wherein, rotatory friction mechanism 10 contains rotation axis 8, is equipped with a plurality of rotating vane 11 on the rotation axis 8, and rotation axis 8 upper end both sides still are equipped with collection mouth frock 7.
Wherein, rubbing crusher 6 contains the emery wheel piece, and rubbing crusher 6 both sides still are equipped with fixed block 12, and rubbing crusher 6 rotates with rotatory friction mechanism 10 and is connected.
Wherein, the rotary friction mechanism 10 is connected with the cooling liquid water outlet 3 and the cooling liquid water inlet 2 in a penetrating way.
A high-entropy alloy friction stir additive preparation process comprises the following steps:
feeding pure metal wires with different thicknesses into a feeding hole through a feeding mechanism;
feeding the fed pure metal wire into a crushing mechanism, and crushing to obtain a flaky sheet;
thirdly, enabling the crushed pure metal sheet to flow into a rotary friction mechanism for stirring and friction to obtain a fused and softened metal base material;
step four, the fused and softened metal base material flows to the substrate from the opening of the stirring head, and further friction and stirring treatment are carried out;
fifthly, cooling the dynamic metal base material after further friction and stirring;
and step six, after the cooled and recrystallized metal base materials are accumulated layer by layer, the high-entropy alloy friction stir material additive manufacturing is completed.
Wherein, in the first step, the number of the pure metal wires is five or more than five, such as Fe, Co, Cr, Al and Ni alloy.
In the second step, the crushed sheet material is formed by crushing the metal wire with low melting point into larger flaky powder and the metal with high melting point into smaller flaky powder.
And in the fifth step, cooling solidification is carried out through circulating of cooling liquid.
Finally, it should be noted that: 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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the content of the present invention within the scope of the protection of the present invention.
Claims (10)
1. The utility model provides a high entropy alloy friction stir material disk, includes stirring head (1), its characterized in that: stirring head (1) upper end is equipped with heat sink module (9), heat sink module (9) one side is equipped with feed inlet (4), feed inlet (4) lower extreme has set gradually coolant liquid delivery port (3) and coolant liquid water inlet (2) perpendicularly, heat sink module (9) inner chamber is equipped with rotary friction mechanism (10), rotary friction mechanism (10) upper end is equipped with rubbing crusher structure (6), heat sink module (9) upper end is equipped with drive module (5).
2. A high entropy alloy friction stir additive device according to claim 1, wherein: the rotary friction mechanism (10) comprises a rotary shaft (8), a plurality of rotary blades (11) are arranged on the rotary shaft (8), and collecting port tools (7) are further arranged on two sides of the upper end of the rotary shaft (8).
3. A high entropy alloy friction stir additive device according to claim 1, wherein: the grinding mechanism (6) comprises a grinding wheel, fixed blocks (12) are further arranged on two sides of the grinding mechanism (6), and the grinding mechanism (6) is rotationally connected with the rotary friction mechanism (10).
4. A high entropy alloy friction stir additive device according to claim 1, wherein: the stirring head (1) is rotationally connected with the rotary friction mechanism (10).
5. A high entropy alloy friction stir additive device according to claim 1, wherein: a stepping motor is arranged in the driving module (5), and the output end of the stepping motor is connected with the crushing mechanism (6).
6. A high entropy alloy friction stir additive device according to claim 1, wherein: the rotary friction mechanism (10) is connected with the cooling liquid water outlet (3) and the cooling liquid water inlet (2) in a penetrating mode.
7. A preparation process for preparing a high-entropy alloy friction stir additive by using the high-entropy alloy friction stir additive device of any one of claims 1 to 6, wherein the preparation process comprises the following steps: the method comprises the following steps:
feeding pure metal wires with different thicknesses into a feeding hole through a feeding mechanism;
feeding the fed pure metal wire into a crushing mechanism, and crushing to obtain a flaky sheet;
thirdly, enabling the crushed pure metal sheet to flow into a rotary friction mechanism for stirring and friction to obtain a fused and softened metal base material;
step four, the fused and softened metal base material flows to the substrate from the opening of the stirring head, and further friction and stirring treatment are carried out;
fifthly, cooling the dynamic metal base material after further friction and stirring;
and step six, after the cooled and recrystallized metal base materials are accumulated layer by layer, the high-entropy alloy friction material increase manufacturing is completed.
8. The high-entropy alloy friction-stir additive manufacturing process of claim 7, wherein: in the step one, the number of the pure metal wires is five or more than five.
9. The high-entropy alloy friction-stir additive manufacturing process of claim 7, wherein: in the second step, the crushed sheet material is formed by crushing the metal wire with low melting point into larger flaky powder and the metal with high melting point into smaller flaky powder.
10. The high-entropy alloy friction-stir additive manufacturing process of claim 7, wherein: and in the fifth step, cooling solidification is carried out through circulating of cooling liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784736.2A CN113369671A (en) | 2021-07-12 | 2021-07-12 | High-entropy alloy stirring friction material increasing device and preparation process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110784736.2A CN113369671A (en) | 2021-07-12 | 2021-07-12 | High-entropy alloy stirring friction material increasing device and preparation process |
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| CN113369671A true CN113369671A (en) | 2021-09-10 |
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| CN202110784736.2A Pending CN113369671A (en) | 2021-07-12 | 2021-07-12 | High-entropy alloy stirring friction material increasing device and preparation process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857643A (en) * | 2021-09-17 | 2021-12-31 | Dig自动化工程（武汉）有限公司 | Friction stir welding additive manufacturing mechanism based on powder |
| CN114799480A (en) * | 2022-04-23 | 2022-07-29 | 哈尔滨工业大学 | Synchronous uninterrupted wire feeding all-solid-phase friction stir additive manufacturing method and device |
| CN115213544A (en) * | 2022-06-15 | 2022-10-21 | 南京工业大学 | System and method for manufacturing high-entropy alloy through multi-wire synchronous stirring and material increase |
-
2021
- 2021-07-12 CN CN202110784736.2A patent/CN113369671A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857643A (en) * | 2021-09-17 | 2021-12-31 | Dig自动化工程（武汉）有限公司 | Friction stir welding additive manufacturing mechanism based on powder |
| CN114799480A (en) * | 2022-04-23 | 2022-07-29 | 哈尔滨工业大学 | Synchronous uninterrupted wire feeding all-solid-phase friction stir additive manufacturing method and device |
| CN115213544A (en) * | 2022-06-15 | 2022-10-21 | 南京工业大学 | System and method for manufacturing high-entropy alloy through multi-wire synchronous stirring and material increase |
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