CN115383279A - Friction stir vibration material disk instrument - Google Patents
Friction stir vibration material disk instrument Download PDFInfo
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- CN115383279A CN115383279A CN202211036311.4A CN202211036311A CN115383279A CN 115383279 A CN115383279 A CN 115383279A CN 202211036311 A CN202211036311 A CN 202211036311A CN 115383279 A CN115383279 A CN 115383279A
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- friction stir
- additive manufacturing
- shaft shoulder
- cylindrical shaft
- stirring head
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- 238000003756 stirring Methods 0.000 title claims abstract description 68
- 239000000463 material Substances 0.000 title claims abstract description 54
- 239000000654 additive Substances 0.000 claims abstract description 77
- 230000000996 additive effect Effects 0.000 claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 claims abstract description 50
- 230000007547 defect Effects 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 abstract description 6
- 230000007480 spreading Effects 0.000 abstract description 3
- 238000003892 spreading Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 239000007769 metal material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001234 light alloy Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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 belongs to the field of metal material friction stir additive manufacturing, and particularly relates to a friction stir additive manufacturing tool which comprises a driving part, a clamping handle and a stirring head, wherein the upper end surface of the clamping handle is connected with the driving part, the lower end surface of the clamping handle is fixedly provided with the stirring head, an additive material conveying channel is arranged in a tool main body, the additive material conveying channel axially penetrates through the clamping handle and the stirring head along the tool main body, the stirring head is a cylindrical shaft shoulder, and the lower end surface of the stirring head is circumferentially provided with a plurality of horizontal crushing parts for eliminating welding defects. The horizontal crushing part of the additive manufacturing tool is configured into the technical characteristics of a groove shape, horizontal direction layout, size limitation and the like, so that the material flowability is increased, materials of different additive layers are fully mixed, the defects of non-combination, weak connection and the like between the additive layers are eliminated, and the obvious layering characteristic is eliminated; can broken vibration material disk member edge overlap, carry out vibration material disk processing function in the horizontal direction, realize spreading in the horizontal direction through the overlap joint mode, easy and simple to handle, the reliability is high, vibration material disk is efficient.
Description
Technical Field
The invention belongs to the field of metal material friction stir additive manufacturing, and particularly relates to a friction stir additive manufacturing tool.
Background
Friction Stir Additive Manufacturing (FSAM) is a novel solid-phase additive technology proposed on the basis of Friction Stir Welding (FSW). The technical principle is that additive materials are plasticized by a stirring head through a stirring friction mode, multilayer accumulation forming is carried out, and finally additive manufacturing with a specific configuration is achieved. Has wide application prospect in the fields of medical treatment, automobiles, aerospace manufacturing industry and the like.
Compared with the melting additive manufacturing technology, the friction stir additive manufacturing based on solid phase connection has special advantages in the application of light alloys such as aluminum, magnesium and the like: the method has no melting and solidification processes (the temperature only reaches 60 to 90 percent of the melting point), so that the metallurgical defects are less generated, the method can be suitable for controlling the thermal deformation of large-scale components and the like, and has important research value. The material is subjected to large plastic deformation in the stirring friction additive manufacturing process, and finally forms a fine isometric crystal structure under the action of thermal coupling, so that the comprehensive mechanical property of a formed part is facilitated. In addition, the solid-phase additive component has high density, low residual stress, higher quality, better flexibility, larger size range of the additive component, higher additive speed, lower energy consumption and cost and unique advantages in additive manufacturing of large-scale light alloy components, and special vacuum chambers or protective gas is not needed in the additive process. However, due to the need of large-scale equipment and fixture tool constraint, the flexibility of the application of the friction stir additive manufacturing technology has some problems to be solved, especially for complex and small components. Therefore, the application field of friction stir additive manufacturing is more biased towards the additive manufacturing of large plate-based members.
However, in the traditional friction stir additive manufacturing, a large number of burrs, weak connection and other defects exist at the edge of a formed part, so that the performance and the size of an additive component are not ideal, and the freedom degree of additive material is limited, so that the additive material can be only subjected to additive processing in the vertical direction. Therefore, it is of great significance to design an additive tool capable of optimizing common defects in friction stir additive manufacturing and improving the quality of an additive component.
Disclosure of Invention
Aiming at the defects of the prior art, in order to improve the quality of a friction stir additive manufacturing component, the invention aims to provide a tool for friction stir additive manufacturing, which can eliminate the defects of flash and weak connection of edges; and the method is not limited to be only carried out in the vertical direction, and the additive machining can be realized in the horizontal direction by a lapping mode.
According to one aspect of the invention, the invention provides the following technical scheme:
the utility model provides a friction stir vibration material disk instrument, includes drive division, centre gripping handle and stirring head, the centre gripping handle up end is connected with the drive division, and its terminal surface fixed mounting stirring head down is equipped with vibration material disk feed passageway inside the tool main part, vibration material disk feed passageway runs through centre gripping handle and stirring head, its characterized in that along tool main part axial: the stirring head is a cylindrical shaft shoulder, and a plurality of horizontal crushing parts are arranged on the lower end face of the stirring head along the circumferential direction and used for eliminating the defects of additive manufacturing.
As a preferable aspect of the friction stir additive manufacturing tool according to the present invention, wherein: the plurality of horizontal crushing portions are configured as radial grooves.
As a preferable aspect of the friction stir additive manufacturing tool according to the present invention, wherein: the number of the radial grooves is three, and the radial grooves are evenly distributed along the circumferential direction of the lower end face of the cylindrical shaft shoulder.
As a preferable aspect of the friction stir additive manufacturing tool according to the present invention, wherein: the radial groove penetrates through the lower end face of the cylindrical shaft shoulder in the circumferential direction, and the axis of the radial groove is perpendicular to the axis of the tool body.
As a preferable aspect of the friction stir additive manufacturing tool according to the present invention, wherein: the radial groove is an arc-shaped groove, the volume of the arc-shaped groove is one third of that of a cylindrical shaft shoulder with the same height, and the corresponding central angle is 120 degrees.
As a preferable aspect of the friction stir additive manufacturing tool according to the present invention, wherein: the corresponding radius of the arc-shaped groove is 11.94mm, and the top depth of the arc-shaped groove is 5.97mm.
As a preferable aspect of the friction stir additive manufacturing tool according to the present invention, wherein: the diameter of the cylindrical shaft shoulder is a, and the relation a is more than 20mm.
As a preferable aspect of the friction stir additive manufacturing tool according to the present invention, wherein: the additive material conveying channel is a cylindrical channel concentric with the cylindrical shaft shoulder, and the diameter of the cylindrical channel is smaller than that of the cylindrical shaft shoulder.
Advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
1. compared with the conventional shaft shoulder for friction stir additive manufacturing, the friction stir additive manufacturing tool designed by the invention has the advantages that after the plurality of horizontal crushing parts are configured into the grooves, the flowability of materials can be greatly increased due to the groove characteristics at the bottom of the cylindrical shaft shoulder, and different additive layer materials below the shaft shoulder are more sufficiently mixed to form a wedge-shaped structure, so that the newly added material layer and the original accumulation layer are more sufficiently mixed, the defects of no combination, weak connection and the like between the additive layers are eliminated, and the obvious layering characteristics of an additive manufacturing component are eliminated.
2. By adopting the stirring friction additive manufacturing tool designed by the invention, the designed plurality of horizontal crushing parts can play a role of crushing the edge flash of the additive component after being configured into the grooves, so the tool has the function of additive processing in the horizontal direction, spreading is realized in the horizontal direction through a lap joint mode, and the tool is simple and convenient to operate, high in reliability, high in additive efficiency and good in effect.
3. According to the friction stir material additive manufacturing tool designed by the invention, the horizontal crushing part is configured into the comprehensive technical characteristics of the shape of the groove, the horizontal direction layout, the size limit set by combining a specific application environment and the like, and the effects are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a diagram of a model of a friction stir additive manufacturing tool of the present invention;
FIG. 2 is a front view of a friction stir additive manufacturing tool of the present invention;
FIG. 3 is a bottom view of a friction stir additive manufacturing tool of the present invention
Fig. 4 is a schematic diagram of the operation principle of friction stir additive manufacturing.
In the figure: 1 is the centre gripping handle, 2 is cylindrical shaft shoulder, 3 is vibration material disk transfer passage, 4 is the recess, 5 is vibration material disk, 6 is vibration material disk, 7 substrates.
Detailed Description
The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Example 1
The utility model provides a friction stir vibration material disk instrument, includes drive division, centre gripping handle 1 and cylindrical shaft shoulder 2, 1 upper ends of centre gripping handle are connected with the drive division, and the cylindrical shaft shoulder 2 of terminal surface fixed mounting under the centre gripping handle 1, the inside vibration material disk transfer passage 3 that is equipped with of tool main part, vibration material disk transfer passage 3 runs through centre gripping handle 1 and cylindrical shaft shoulder 2 along tool main part axial, and cylindrical shaft shoulder 2 lower terminal surface is provided with the broken portion of a plurality of levels along circumference for eliminate vibration material disk defect.
More specifically, the diameter of the cylindrical shaft shoulder 2 is a more than 20mm, the additive material conveying channel 3 is a cylindrical channel concentric with the cylindrical shaft shoulder 2, the diameter of the cylindrical channel is b < a, and the diameter can be designed according to the specific size of the additive material.
The application lies in the structural feature design of cylindrical shaft shoulder 2, and cylindrical shaft shoulder 2 only as the cutter of an additive manufacturing processing, namely the rotatory non-consumptive cutter that uses in the friction stir additive manufacturing, generates heat through the rotational friction and makes the material reach plastic deformation, and the feeding is through the material conveying passageway of shaft shoulder center increase material interpolation.
In friction stir welding, the friction stir additive manufacturing tool in the present application can achieve a stirring action as a whole, and has a function of generating heat by friction.
Since the cylindrical shoulder 2 may be connected to different types of devices in practical applications, and the grip shank 1 itself may be variously deformed to meet the machining requirements, the grip shank 1 is not considered to be described in the shape defined in the drawings. Of course, the structural characteristics of the clamping handle 1 can be reasonably set according to the clamping requirements, so that the clamping requirements can be met.
In this embodiment, the arrangement of a plurality of horizontal crushing portions in the friction stir additive manufacturing tool can play a role in crushing the edge burrs of the additive component, and thus the tool has a function of performing additive processing in a horizontal direction compared with the conventional tool.
Example 2
In this embodiment, the same technical features are referred to in embodiment 1, which is not repeated herein, and different technical features are embodied in: the plurality of horizontal crushing parts are configured into grooves, specifically, radial grooves 4 are configured on the lower end surface of the cylindrical shaft shoulder, the radial grooves 4 penetrate through the whole body of the cylindrical shaft shoulder 2, and the radial grooves 4 are preferably arc-shaped grooves
Setting radial grooves 4 to penetrate through the circumferential direction of the lower end face of the cylindrical shaft shoulder 2, wherein the axial lines of the radial grooves 4 are perpendicular to the axial line of the tool main body, the number of the radial grooves is three, and the radial grooves are preferably uniformly distributed along the circumferential direction of the lower end face of the shaft cylindrical shaft shoulder 2; the volume of the groove is about one third of the volume of the cylindrical shoulder 2 with the same height.
The preferred size of the scheme adopted by the embodiment is set as that the outer diameter of the cylindrical shaft shoulder 2 is 28mm, and the inner diameter is 14mm; the central angle corresponding to the arc-shaped groove is 120 degrees, the radius is 11.94mm, and the depth of the top of the arc-shaped groove is 5.97mm.
The utility model provides a friction stir vibration material disk instrument is when using, according to the centre gripping, reasonable adjustment is to centre gripping back of centre gripping handle 1, the cooperation adopts vibration material disk transfer passage 3, fill rotatory cylindrical shaft shoulder 2 with metal powder or silk material or rod, under the friction stir combined action of feeding power and the cylindrical shaft shoulder 2 of instrument, the material thermoplasticization and the downward migration of messenger's filling, the deposit, thereby the cylindrical shaft shoulder 2 of instrument removes along predetermined orbit and forms vibration material disk sediment, radial recess 4 that the terminal surface set up under the cylindrical shaft shoulder 2 makes newly-increased material layer and original cumulant layer mix more fully, the overlap that the broken vibration material disk component edge formed simultaneously. And after the operation is finished, the cylindrical shaft shoulder 2 of the operating tool moves upwards, the next layer of additive manufacturing process is carried out, and the steps are repeated, so that the required additive component is finally formed.
In the friction stir material increase manufacturing tool of this application, after a plurality of horizontal crushing portions of design were configured into the recess, the mobility of material can greatly have been increased to the recess characteristic of cylindrical shaft shoulder bottom for newly-increased material layer mixes more fully with original cumulant and eliminates weak connection defect, and the recess characteristic also can play the effect of broken material increase component edge overlap, consequently this instrument has possessed the function of carrying out the material increase processing in the horizontal direction. Utilize the friction stir vibration material disk instrument of this application for friction stir vibration material disk is not being restricted to and can only go on in the vertical direction, still can realize spreading in the horizontal direction through the overlap joint mode, and this instrument is easy and simple to handle, the reliability is high, material disk is efficient, effectual.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that those skilled in the art may make variations, modifications, substitutions and alterations within the scope of the present invention without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a friction stir vibration material disk instrument, includes drive division, centre gripping handle and stirring head, the centre gripping handle up end is connected with the drive division, and its lower terminal surface fixed mounting stirring head is equipped with vibration material disk material conveying channel inside the tool main part, vibration material disk material conveying channel runs through centre gripping handle and stirring head, its characterized in that along tool main part axial: the stirring head is a cylindrical shaft shoulder, and a plurality of horizontal crushing parts are arranged on the lower end face of the stirring head along the circumferential direction and used for eliminating the defects of additive manufacturing.
2. The friction stir additive manufacturing tool of claim 1 wherein: the plurality of horizontal crushing portions are configured as radial grooves.
3. The friction stir additive manufacturing tool of claim 2 wherein: the number of the radial grooves is three, and the radial grooves are evenly distributed along the circumferential direction of the lower end face of the cylindrical shaft shoulder.
4. The friction stir additive manufacturing tool of claim 2 wherein: the radial groove penetrates through the lower end face of the cylindrical shaft shoulder in the circumferential direction, and the axis of the radial groove is perpendicular to the axis of the tool body.
5. The friction stir additive manufacturing tool of claim 2 wherein: the radial groove is an arc-shaped groove, the volume of the arc-shaped groove is one third of that of a cylindrical shaft shoulder with the same height, and the corresponding central angle is 120 degrees.
6. The friction stir additive manufacturing tool of claim 5, wherein: the corresponding radius of the arc-shaped groove is 11.94mm, and the top depth of the arc-shaped groove is 5.97mm.
7. The friction stir additive manufacturing tool of claim 5, wherein: the diameter of the cylindrical shaft shoulder is a, and the relation a is more than 20mm.
8. The friction stir additive manufacturing tool of any one of claims 1-7, wherein: the additive material conveying channel is a cylindrical channel concentric with the cylindrical shaft shoulder, and the diameter of the cylindrical channel is smaller than that of the cylindrical shaft shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211036311.4A CN115383279B (en) | 2022-08-28 | 2022-08-28 | Friction stir additive manufacturing tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211036311.4A CN115383279B (en) | 2022-08-28 | 2022-08-28 | Friction stir additive manufacturing tool |
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| CN115383279A true CN115383279A (en) | 2022-11-25 |
| CN115383279B CN115383279B (en) | 2024-04-09 |
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| CN103084731A (en) * | 2013-02-06 | 2013-05-08 | 南京航空航天大学 | Integrated stir-welding head capable of removing overlap and used for stir friction welding |
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2022
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| CN115383279B (en) | 2024-04-09 |
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