CN111482694A - Friction stir welding device and method - Google Patents
Friction stir welding device and method Download PDFInfo
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- CN111482694A CN111482694A CN201910111950.4A CN201910111950A CN111482694A CN 111482694 A CN111482694 A CN 111482694A CN 201910111950 A CN201910111950 A CN 201910111950A CN 111482694 A CN111482694 A CN 111482694A
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- 238000003756 stirring Methods 0.000 title claims abstract description 185
- 238000003466 welding Methods 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000000463 material Substances 0.000 claims description 45
- 238000005304 joining Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000004323 axial length Effects 0.000 claims description 6
- 229910001315 Tool steel Inorganic materials 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 4
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005219 brazing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
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- 239000004416 thermosoftening plastic Substances 0.000 description 1
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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
-
- 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
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Abstract
The invention provides a friction stir welding device which comprises a body and a stirring head, wherein the top surface of the body is provided with a first thread structure. The stirring head is connected to the top surface of the body, and the surface of the stirring head is provided with a second thread structure, wherein the first thread structure is a right-handed thread, and the second thread structure is a right-handed thread. In addition, a friction stir welding method is also proposed.
Description
Technical Field
The invention relates to a friction stir welding device and a friction stir welding method.
Background
Welding (Welding), or fusing, is a process and technique for joining metals or other thermoplastics by heating or pressing. Welding can achieve the purpose of joining by the following three ways: heating the workpieces to be jointed to partially melt the workpieces to form a molten pool, and jointing the workpieces after the molten pool is cooled and solidified, wherein a melting filler can be added for assistance when necessary; independently heating the welding flux with lower melting point without melting the workpiece, and connecting the workpieces by the capillary action of the welding flux (such as soldering and brazing); the two workpieces are osmotically joined (e.g., forge welded, solid state welded) to one another at a temperature at or below the melting point of the workpieces with the aid of high pressure, extrusion lamination, vibration, or the like.
In the prior art, there is a method developed for friction stir welding, in which heat energy is generated by mechanical rotational friction, the heat generated by mechanical rotational friction is used as a heat source on the joint surface of two workpieces, and a friction stir welding device moves slowly and continuously rotates friction stir, so that the two workpieces are plastically deformed under the action of pressure to weld.
However, in the friction stir welding method, the friction stir welding device is moved in an oblique manner, i.e., the friction stir welding device is not perpendicular to the joint surface of the two workpieces, so that waste of the workpieces during the moving process of the friction stir welding device is avoided. However, this causes difficulty in the moving process of the friction stir welding device, and the material loss cannot be completely avoided, so that the friction stir welding device needs to move back and forth in the welding defect area for many times to stir the materials uniformly, and the process is more and the consumed time is longer.
Therefore, it is an object of the present invention to improve and provide a friction stir welding apparatus and a method thereof to avoid the above problems.
Disclosure of Invention
The invention provides a friction stir welding device and a friction stir welding method, which can effectively reduce the waste of joint materials caused by rotational friction, enable the welding area to be smooth and improve the welding joint efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that:
a friction stir welding apparatus for joining two workpieces, the friction stir welding apparatus comprising:
a body, the top surface of which is provided with a first thread structure; and
the stirring head is connected to the top surface of the body, and a second thread structure is arranged on the surface of the stirring head, wherein the first thread structure is a right-handed thread, and the second thread structure is a right-handed thread.
The stirring friction welding device is characterized in that the spiral direction of the first thread structure is opposite to the rotating direction of the body, the spiral direction of the second thread structure is opposite to the rotating direction of the body, the second thread structure of the stirring head has a spiral angle, and the range of the spiral angle is between 10 degrees and 30 degrees; the body is rotated and moved on a joint surface of the two workpieces, so that the stirring head rotates and rubs on the joint surface of the two workpieces to generate a joint material to joint the two workpieces.
A friction stir welding method, comprising the steps of:
providing two workpieces, and clamping and butting the two workpieces to form a joint surface;
providing a friction stir welding device, wherein the friction stir welding device comprises a body and a stirring head, the top surface of the body is provided with a first thread structure, the surface of the stirring head is provided with a second thread structure, the spiral direction of the first thread structure is opposite to the rotation direction of the body, and the spiral direction of the second thread structure is opposite to the rotation direction of the body;
rotating the friction stir welding device and moving along the joint surfaces of the two workpieces, wherein the stirring head rotates and rubs between the joint surfaces of the two workpieces, and two ends of the two workpieces generate a joint material due to friction heat, and the two workpieces are jointed through the joint material; and
the joint material is collected through the first thread structure and the second thread structure.
A friction stir welding device for joining two workpieces, wherein the friction stir welding device comprises:
the periphery of the top surface of the body is provided with a flange structure and a notch; and
the stirring head is connected to the top surface of the body, and the surface of the stirring head is provided with a thread structure which is a right-handed thread.
The friction stir welding device, wherein the height of the flange structure is not higher than the height of the stirring head.
The length of the arc of the notch is 1/3-2/3 times the diameter of the top surface of the body.
The stirring friction welding device is characterized in that the spiral direction of the thread structure is opposite to the rotating direction of the body; the body is rotated and moved on a joint surface of the two workpieces, so that the stirring head rotates and rubs on the joint surface of the two workpieces to generate a joint material to joint the two workpieces.
In the friction stir welding apparatus, the thread structure of the stirring head has a spiral angle, and the range of the spiral angle is between 10 degrees and 30 degrees.
The friction stir welding device is characterized in that the stirring head is made of steel.
The friction stir welding device is characterized in that the steel material is tungsten steel, tool steel of SKD61 type or die steel of H13 type.
In the friction stir welding apparatus, the surface of the stir head is a conical surface, and an included angle of the conical surface ranges from 20 degrees to 40 degrees.
The friction stir welding device, wherein the stir head has an axial length ranging from 1 to 1.5 times a thickness of the workpiece.
A friction stir welding method, comprising the steps of:
providing two workpieces, and clamping and butting the two workpieces to form a joint surface;
providing a friction stir welding device, wherein the friction stir welding device comprises a body and a stirring head, the periphery of the top surface of the body is provided with a flange structure and a notch, the surface of the stirring head is provided with a thread structure, and the spiral direction of the thread structure is opposite to the rotating direction of the body;
rotating the friction stir welding device and moving along the joint surfaces of the two workpieces, wherein the stirring head rotates and rubs between the joint surfaces of the two workpieces, and two ends of the two workpieces generate a joint material due to friction heat, and the two workpieces are jointed through the joint material; and
the joint material is collected through the thread structure and the flange structure.
The friction stir welding method, wherein the arc length of the notch is 1/3 to 2/3 times the diameter of the top surface of the body.
The friction stir welding method, wherein the step of rotating the friction stir welding device and moving along the joining surface of the two workpieces, comprises the steps of:
so that the mixing head of the friction stir welding device is vertical to the combined surface of the two workpieces.
The friction stir welding method, wherein the rotational speed of the friction stir welding device is 800 to 1500 revolutions per minute.
The friction stir welding method, wherein the speed of the feed movement of the friction stir welding device along the joining surface of the two workpieces is 100 to 175 mm/min.
Based on the above, in the friction stir welding apparatus and the method thereof of the present invention, the stir head rotates and rubs on the joint surfaces of the two workpieces, and the joint surfaces of the two workpieces generate a joint material due to the friction heat, and the two workpieces are joined by the joint material, and the joint material can be collected by the thread structure (such as the first thread structure and the second thread structure) and/or the flange structure, so as to reduce the waste of the joint material due to the rotation friction, make the welding area flat, improve the welding joint efficiency, and reduce the joint time.
In order to make the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a schematic view of a friction stir welding apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic plan view of the friction stir welding apparatus of fig. 1.
FIG. 3 is a flow chart of an embodiment of a friction stir welding method of the present invention.
FIG. 4 is a schematic diagram of an application example of the friction stir welding method of the present invention.
FIG. 5 is a schematic view of another embodiment of a friction stir welding apparatus of the present invention.
FIG. 6 is a flow chart of another embodiment of a friction stir welding method of the present invention.
FIG. 7 is a schematic view of another application of the friction stir welding method of the present invention.
The reference numbers indicate 10, 20-friction stir welding device, 11, 21-body, 112, 212-top surface, 113-connecting part, 114-first thread structure, 12, 22-stirring head, 122-second thread structure, 124, 224-top part, 222-thread structure, 23-flange structure, 24-notch, 32, 34-machined part, 36-joint surface, A-angle, B-spiral angle, C-arc length, D-diameter, L-axial length, R-rotation direction, S10, S20-friction stir welding method, S11-S14-step, and S21-S24-step.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
FIG. 1 is a schematic view of a friction stir welding apparatus according to an embodiment of the present invention. Fig. 2 is a schematic plan view of the friction stir welding apparatus of fig. 1. Please refer to fig. 1 and fig. 2. In the present embodiment, the friction stir welding apparatus 10 includes a body 11 and a stirring head 12. The top surface 112 of the body 11 has a first thread structure 114, the first thread structure 114 is a thread structure, the first thread structure 114 is a right-handed thread, and the direction of the thread of the first thread structure 114 is opposite to the direction of rotation of the body 11. In addition, the body 11 may include a connecting portion 113, the connecting portion 113 is configured to be clamped and connected by a driving device, and the driving device is configured to drive the body 11 to rotate.
In the present embodiment, the head 12 is connected to the top surface 112 of the body 11. the head 12 is made of steel material, such as tungsten steel, tool steel of SKD61 type, and die steel of H13 type, the top 124 of the head 12 is rounded, or may be a flat surface, a concave surface, or a concave angle, or even a convex or convex angle, and the head 12 has an axial length L, the axial length L ranges from 1 to 1.5 times the thickness of the workpiece. the surface of the head 12 has a second thread structure 122, and the second thread structure 122 is a thread structure, the second thread structure 122 is a thread, and the direction of the thread of the second thread structure 122 is opposite to the direction of rotation of the body 11. referring to fig. 1, the second thread structure 122 of the head 12 has a thread angle B ranging from 10 to 30 degrees.
FIG. 3 is a flow chart of an embodiment of a friction stir welding method of the present invention. FIG. 4 is a schematic diagram of an application example of the friction stir welding method of the present invention. Please refer to fig. 3 and fig. 4. The friction stir welding method S10 of the present embodiment may be applied to the friction stir welding apparatus 10 shown in fig. 1, and the friction stir welding method S10 includes the following steps S11 to S14. First, step S11 is performed to provide two workpieces 32, 34, and the two workpieces 32, 34 are clamped and butted to form a bonding surface 36. The material of the workpieces 32, 34 may be aluminum or copper.
Next, step S12 is performed to provide a friction stir welding device 10, wherein the friction stir welding device 10 includes a body 11 and a stirring head 12. The top surface 112 of the body 11 has a first thread structure 114, and the direction of the first thread structure 114 is opposite to the rotation direction R of the body 11. The surface of the stirring head 12 has a second thread structure 122, and the spiral direction of the second thread structure 122 is opposite to the rotation direction R of the body 11.
Step S13 is performed by rotating the friction stir welding device 10 and moving the friction stir welding device along the joint surface 36 of the two workpieces 32, 34, wherein the stir head 12 is rotated and rubbed between the joint surface 36 of the two workpieces 32, 34 to generate a joint material at the two ends of the workpieces 32, 34 due to the heat of friction, the friction stir welding device 10 is preferably a cylinder to facilitate uniform friction stirring, the friction stir welding device 10 is rotatable to act on the joint surface 36 of the two workpieces 32, 34 to generate friction heat in the joint surface 36 of the two workpieces 32, 34, and to soften (plastically deform) the material of the two workpieces 32, 34 by the friction heat to form a joint material having a semi-solid plastic flow layer, the two workpieces 32, 34 are joined by the joint material, specifically, as illustrated in fig. 4, the stir head 12 of the friction stir welding device 10 is perpendicular to the joint surface 36 of the two workpieces 32, 34, the stir head 12 has an axial length L, the axial length L ranges from 1 to 1.5 times the thickness of the two workpieces 32, 34, and in one embodiment, the stir welding device moves along the tangential direction of the friction stir welding device 10 and the joint surface 36 moves at a tangential feeding speed of the stir welding device 175 mm/15 and the welding device moves along the tangential direction of the welding region of the friction stir welding device.
Step S14 is performed to collect the joint material through the first thread structure 114 and the second thread structure 122. In step S14, since the first thread structure 114 is a right-handed thread and the second thread structure 122 is a right-handed thread, the spiral direction of the first thread structure 114 is opposite to the rotation direction R of the body 11, and the spiral direction of the second thread structure 122 is opposite to the rotation direction R of the body 11, the joint material can be gathered in the thread structure (groove) of the first thread structure 114, thereby reducing waste of the joint material due to rotational friction, making the welding area flat, improving welding joint efficiency, and reducing joint time. Finally, the pin 12 is removed and the weld area within the faying surface 36 is cooled. In this embodiment, the weld region in the joining surface 36 is cooled by natural cooling to join the two workpieces 32, 34 to each other. However, the invention is not limited thereto, and in other embodiments, the welding area in the joint surface 36 may be cooled by water cooling, air cooling, or the like.
FIG. 5 is a schematic view of another embodiment of a friction stir welding apparatus of the present invention. Please refer to fig. 5. The friction stir welding apparatus 20 of fig. 5 includes a body 21 and a stir head 22. The top surface 212 of the body 21 has a flange structure 23 and a gap 24 at its periphery, wherein the flange structure 23 protrudes from the top surface 212, and the height of the flange structure 23 is not higher than the height of the stirring head 23. In addition, the notch 24 is formed by notching the flange structure 23, and the arc length C of the notch 24 is 1/3-2/3 times the diameter D of the top surface 212 of the body 21. It can be seen that the top surface 212 of the body 21 of the friction stir welding apparatus 20 of fig. 5 does not have the first thread configuration as in fig. 1.
In the present embodiment, the stirring head 22 is connected to the top surface 212 of the body 21, and the stirring head 22 is similar to the stirring head 12 of fig. 1, and can refer to the stirring head 12 of fig. 1 without repeated description. The top 224 of the stirring head 22 has a round corner, which may be a plane, a concave surface or a concave angle, or even a convex surface or a convex angle, and the surface of the stirring head 22 has a thread structure 222, and the thread structure 222 is a thread structure, and the thread structure 222 is a right-handed thread, and the thread direction of the thread structure 222 is opposite to the rotation direction R of the body 21. The thread structure 222 of the stirring head 12 has a spiral angle, and the spiral angle ranges from 10 degrees to 30 degrees.
FIG. 6 is a flow chart of another embodiment of a friction stir welding method of the present invention. FIG. 7 is a schematic view of another application of the friction stir welding method of the present invention. Please refer to fig. 6 and 7. The friction stir welding method S20 of the present embodiment may be applied to the friction stir welding apparatus 20 shown in fig. 5, and the friction stir welding method S20 includes the following steps S21 to S24. First, step S21 is performed to provide two workpieces 32, 34, and the two workpieces 32, 34 are clamped and butted to form a bonding surface 36. The material of the workpieces 32, 34 may be aluminum or copper.
Next, step S22 is performed to provide a friction stir welding device 20 (as shown in fig. 5), wherein the friction stir welding device 20 includes a body 21 and a stirring head 22. The top surface 212 of the body 21 has a flange structure 23 and a gap 24 at its periphery. The surface of the stirring head 22 has a thread structure 222, the thread structure 222 is a right-handed thread, and the spiral direction of the thread structure 222 is opposite to the rotation direction R of the body 21.
Step S23 is performed to rotate the friction stir welding device 20 and move along the joint surface 36 of the two workpieces 32, 34, the stirring head 22 rotates and rubs between the joint surfaces 36 of the two workpieces 32, 34 to generate a joint material at the two ends of the workpieces 32, 34 due to the friction heat, the friction stir welding device 20 is preferably a cylinder to facilitate uniform friction stirring, the friction stir welding device 20 can rotatably act on the joint surfaces 36 of the two workpieces 32, 34 to generate friction heat in the joint surfaces 36 of the two workpieces 32, 34, and the material of the two workpieces 32, 34 is softened (plastically deformed) by the friction heat to form the joint material with a semi-solid plastic flow layer. The two workpieces 32, 34 are joined by the joint compound. Specifically, in the example of fig. 7, the pin 22 of the friction stir welding apparatus 20 is perpendicular to the joining surface 36 of the two workpieces 32, 34. Further, in one embodiment, the rotational speed of the friction stir welding device 20 is 800 to 1500 rpm, and the friction stir welding device 20 is moved in a feeding direction along a tangential direction of the joining surface 36 of the two workpieces 32, 34 to form a weld zone, and the moving speed of the feeding movement is 100 to 175 mm/min.
Proceeding to step S24, the joint material is collected by the thread structure 222 and the flange structure 23. In step S24, since the thread structure 222 is a right-handed thread and the thread direction of the thread structure 222 is opposite to the rotation direction R of the body 21, the bonding material can be gathered in the flange structure 23, thereby reducing the waste of the bonding material due to the rotation friction, making the welding area smooth, improving the welding efficiency and reducing the bonding time. Finally, the pin 22 is removed and the weld area within the faying surface 36 is cooled. In this embodiment, the weld region in the joining surface 36 is cooled by natural cooling to join the two workpieces 32, 34 to each other. However, the invention is not limited thereto, and in other embodiments, the welding area in the joint surface 36 may be cooled by water cooling, air cooling, or the like.
In summary, in the friction stir welding apparatus and the method thereof of the present invention, the stir head rotates and rubs on the joint surfaces of the two workpieces, and the joint surfaces of the two workpieces generate a joint material due to the friction heat, and the two workpieces are joined by the joint material, and the joint material can be collected by the thread structures (such as the first thread structure and the second thread structure) and/or the flange structure, so as to reduce the waste of the joint material due to the rotation friction, so that the welding area is flat, the welding joint efficiency is improved, and the joint time is reduced. In addition, for workpieces of aluminum and copper, the performance requirement of high joint strength can be met by using the friction stir welding device and the method thereof.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (17)
1. A friction stir welding apparatus for joining two workpieces, the friction stir welding apparatus comprising:
a body, the top surface of which is provided with a first thread structure; and
the stirring head is connected to the top surface of the body, and a second thread structure is arranged on the surface of the stirring head, wherein the first thread structure is a right-handed thread, and the second thread structure is a right-handed thread.
2. The friction stir welding apparatus of claim 1 wherein the helical direction of the first thread structure is opposite to the rotational direction of the body, the helical direction of the second thread structure is opposite to the rotational direction of the body, the second thread structure of the stir head has a helical angle, the helical angle ranges from 10 degrees to 30 degrees; the body is rotated and moved on a joint surface of the two workpieces, so that the stirring head rotates and rubs on the joint surface of the two workpieces to generate a joint material to joint the two workpieces.
3. A friction stir welding method, comprising the steps of:
providing two workpieces, and clamping and butting the two workpieces to form a joint surface;
providing a friction stir welding device, wherein the friction stir welding device comprises a body and a stirring head, the top surface of the body is provided with a first thread structure, the surface of the stirring head is provided with a second thread structure, the spiral direction of the first thread structure is opposite to the rotation direction of the body, and the spiral direction of the second thread structure is opposite to the rotation direction of the body;
rotating the friction stir welding device and moving along the joint surfaces of the two workpieces, wherein the stirring head rotates and rubs between the joint surfaces of the two workpieces, and two ends of the two workpieces generate a joint material due to friction heat, and the two workpieces are jointed through the joint material; and
the joint material is collected through the first thread structure and the second thread structure.
4. A friction stir welding apparatus for joining two workpieces, the friction stir welding apparatus comprising:
the periphery of the top surface of the body is provided with a flange structure and a notch; and
the stirring head is connected to the top surface of the body, and the surface of the stirring head is provided with a thread structure which is a right-handed thread.
5. The friction stir welding apparatus of claim 4 wherein the flange structure has a height no greater than a height of the stir head.
6. The friction stir welding apparatus of claim 4 wherein the arc length of the notch is between 1/3 and 2/3 times the diameter of the top surface of the body.
7. The friction stir welding apparatus of claim 4 wherein the helical direction of the thread form is opposite to the direction of rotation of the body; the body is rotated and moved on a joint surface of the two workpieces, so that the stirring head rotates and rubs on the joint surface of the two workpieces to generate a joint material to joint the two workpieces.
8. The friction stir welding apparatus of claim 4 wherein the thread configuration of the stir head has a helix angle ranging from 10 degrees to 30 degrees.
9. Friction stir welding device according to claim 1 or 4, characterized in that the stirring head is made of steel.
10. The friction stir welding apparatus of claim 8 wherein the steel material is tungsten steel, SKD61 type tool steel, or H13 type die steel.
11. The friction stir welding apparatus of claim 1 or 4 wherein the face of the stir head is a conical face having an included angle in the range of 20 degrees to 40 degrees.
12. The friction stir welding apparatus of claim 1 or 4 wherein the stir head has an axial length ranging between 1 and 1.5 times the thickness of the workpiece.
13. A friction stir welding method, comprising the steps of:
providing two workpieces, and clamping and butting the two workpieces to form a joint surface;
providing a friction stir welding device, wherein the friction stir welding device comprises a body and a stirring head, the periphery of the top surface of the body is provided with a flange structure and a notch, the surface of the stirring head is provided with a thread structure, and the spiral direction of the thread structure is opposite to the rotating direction of the body;
rotating the friction stir welding device and moving along the joint surfaces of the two workpieces, wherein the stirring head rotates and rubs between the joint surfaces of the two workpieces, and two ends of the two workpieces generate a joint material due to friction heat, and the two workpieces are jointed through the joint material; and
the joint material is collected through the thread structure and the flange structure.
14. The friction stir welding method of claim 13 wherein the arc length of the notch is between 1/3 and 2/3 times the diameter of the top surface of the body.
15. The friction stir welding method according to claim 3 or 13, wherein said step of rotating the friction stir welding device and moving along the joining surface of the two workpieces comprises the steps of:
so that the mixing head of the friction stir welding device is vertical to the combined surface of the two workpieces.
16. The friction stir welding method of claim 3 or 13 wherein the friction stir welding device is rotated at a speed of 800 to 1500 rpm.
17. The friction stir welding method according to claim 3 or 13, wherein the speed of the feed movement of the friction stir welding device along the joining surface of the two workpieces is 100 to 175 mm/min.
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| TW108102889 | 2019-01-25 | ||
| TW108102889A TWI702102B (en) | 2019-01-25 | 2019-01-25 | Friction stir welding device and method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004141897A (en) * | 2002-10-22 | 2004-05-20 | Showa Denko Kk | Friction stir welding tool and method for manufacturing welded joint |
| CN102971108A (en) * | 2010-07-12 | 2013-03-13 | 日本轻金属株式会社 | Rotating tool for forming voids and void-formation method |
| CN203018905U (en) * | 2012-12-20 | 2013-06-26 | 联合汽车电子有限公司 | Assembled welding head structure of friction stir welding tool |
| CN103658964A (en) * | 2012-09-21 | 2014-03-26 | 湖北三江航天红阳机电有限公司 | Eccentric combined type stirring head |
| CN105772935A (en) * | 2016-04-01 | 2016-07-20 | 中国电子科技集团公司第三十八研究所 | Stirring head used for welding narrow-step water channel cover plate and welding technology for narrow-step water channel cover plate |
| CN207326173U (en) * | 2017-10-25 | 2018-05-08 | 黄山学院 | A kind of helicla flute drains stirring friction welding agitator head |
| CN108031967A (en) * | 2017-11-28 | 2018-05-15 | 上海航天设备制造总厂 | The upset force self compensation stirring tool and welding method of aclinal agitating friction weldering |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6119904B2 (en) * | 2016-05-13 | 2017-04-26 | 日本軽金属株式会社 | Rotating tool for forming gap and method for forming gap |
-
2019
- 2019-01-25 TW TW108102889A patent/TWI702102B/en not_active IP Right Cessation
- 2019-02-12 CN CN201910111950.4A patent/CN111482694A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004141897A (en) * | 2002-10-22 | 2004-05-20 | Showa Denko Kk | Friction stir welding tool and method for manufacturing welded joint |
| CN102971108A (en) * | 2010-07-12 | 2013-03-13 | 日本轻金属株式会社 | Rotating tool for forming voids and void-formation method |
| CN103658964A (en) * | 2012-09-21 | 2014-03-26 | 湖北三江航天红阳机电有限公司 | Eccentric combined type stirring head |
| CN203018905U (en) * | 2012-12-20 | 2013-06-26 | 联合汽车电子有限公司 | Assembled welding head structure of friction stir welding tool |
| CN105772935A (en) * | 2016-04-01 | 2016-07-20 | 中国电子科技集团公司第三十八研究所 | Stirring head used for welding narrow-step water channel cover plate and welding technology for narrow-step water channel cover plate |
| CN207326173U (en) * | 2017-10-25 | 2018-05-08 | 黄山学院 | A kind of helicla flute drains stirring friction welding agitator head |
| CN108031967A (en) * | 2017-11-28 | 2018-05-15 | 上海航天设备制造总厂 | The upset force self compensation stirring tool and welding method of aclinal agitating friction weldering |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI702102B (en) | 2020-08-21 |
| TW202027890A (en) | 2020-08-01 |
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