CN108817644B - Static shaft shoulder for welding edge weld by friction stir welding and welding method - Google Patents
Static shaft shoulder for welding edge weld by friction stir welding and welding method Download PDFInfo
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- CN108817644B CN108817644B CN201810686610.XA CN201810686610A CN108817644B CN 108817644 B CN108817644 B CN 108817644B CN 201810686610 A CN201810686610 A CN 201810686610A CN 108817644 B CN108817644 B CN 108817644B
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- welding
- shaft shoulder
- shoulder
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- friction stir
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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
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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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
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Abstract
The invention discloses a static shaft shoulder for welding an edge weld by friction stir welding and a welding method, wherein the static shaft shoulder comprises a bottom end shaft shoulder and a lateral shaft shoulder, and the lateral shaft shoulder is detachably connected with the bottom end shaft shoulder through a fixed connecting piece; during welding, the bottom shaft shoulder is pressed below the upper surface of the welding part with the edge welding seam, and the lateral shaft shoulder is tightly contacted with the side surface of the welding part. According to the invention, the bottom of the static shaft shoulder is designed to be provided with the bottom shaft shoulder and the lateral shaft shoulder according to the width and the welding depth change of a narrow plate with an edge welding seam welding piece to be welded, in the welding process, the bottom shaft shoulder surface and the lateral shaft shoulder surface of the static shaft shoulder are completely attached to and closely contacted with the upper surface and the lateral surface of the edge welding seam welding piece respectively, so that the welding of the welding piece with the edge welding seam is realized, and the static shaft shoulder is convenient to mount and has wide applicability.
Description
Technical Field
The invention belongs to the field of friction stir welding, and particularly relates to a static shaft shoulder for welding an edge weld by friction stir welding and a welding method.
Background
Since the friction stir welding technology was invented by the british welding institute in 1991, the friction stir welding technology has been widely applied to the manufacturing fields of aviation, aerospace, high-speed ships, automobile industry, high-speed trains and the like due to the advantages of low heat input, small welding deformation, good weld microstructure and mechanical properties and the like.
In order to overcome the limitations that the temperature uniformity of the traditional friction stir welding technology is poor along the plate thickness direction, the welding surface is easy to overheat, the welding is thinned and the like, the shaft shoulder and the stirring pin are separated on the basis of the traditional FSW of the British welding research institute, and the static shaft shoulder friction stir welding technology is developed. In the prior static shaft shoulder friction stir welding device (CN201610506741.6), a friction stir welding device for realizing the static shaft shoulder is provided, and is suitable for welding materials sensitive to heat input; the existing static shaft shoulder welding device for friction stir welding (CN201420240365.7) provides a static shaft shoulder welding device for flat plate butt joint, and materials extruded into a static shaft shoulder body are more convenient and easier to clean; the prior novel friction stir welding tool (CN201610524886.9) without thinning the surface of a welded material provides a static shaft shoulder friction stir welding device for flat plate butt joint, and solves the problem of thinning after friction stir welding; the prior static shaft shoulder friction stir welding tool without an inclination angle (CN201620629770.7) provides a static shaft shoulder friction stir welding tool without an inclination angle for flat plate butt joint and any fillet weld. In the prior art, the static shaft shoulder friction stir welding technology is adopted to weld a flat plate welding seam or a fillet welding seam, but the welding of an edge welding seam is difficult to realize. In order to solve the technical problem of welding the edge weld seam by friction stir welding, a static shaft shoulder for friction stir welding for welding the edge weld seam and a method for welding by adopting the shaft shoulder are provided.
Disclosure of Invention
Aiming at the problems, the invention provides a static shaft shoulder for welding an edge weld by friction stir welding and a welding method.
The technical purpose is achieved, the technical effect is achieved, and the invention is realized through the following technical scheme:
a static shaft shoulder for welding an edge weld seam by friction stir welding comprises a bottom shaft shoulder and a lateral shaft shoulder, wherein the lateral shaft shoulder is detachably connected with the bottom shaft shoulder through a fixed connecting piece; during welding, the bottom end shaft shoulder is pressed below the upper surface of the welding part with the edge welding seam, and the lateral shaft shoulder is tightly contacted with the side surface of the welding part with a relatively narrow size to be welded.
As a further improvement of the invention, the lateral shaft shoulder comprises an arc-shaped surface and a side plane, the curvature of the arc-shaped surface is the same as that of the bottom shaft shoulder, and the relative size of the side plane and the welded part is narrowIs/are as followsThe side surfaces of the weld are in intimate contact.
As a further improvement of the invention, the bottom shaft shoulder is connected with lateral shaft shoulders with different arc heights, the bottom shaft shoulder and the lateral shaft shoulders are provided with fixing holes and through holes which are matched in position, the fixing holes are fixed in position on the bottom shaft shoulder, and the vertical heights from the through holes on any lateral shaft shoulder to the highest point of the arc surface of the lateral shaft shoulder are the same.
As a further improvement of the invention, the welding device also comprises a stirring head arranged at the central axis of the static shaft shoulder, and the width of at least one welded part is smaller than the radius of the shaft shoulder at the bottom end.
As a further refinement of the present invention, the selected arcuate height of the lateral shoulder is equal to the difference in the radius of the bottom shoulder and the size of the narrow dimension of the weldment.
As a further improvement of the invention, the vertical height of the lateral shaft shoulder is equal to the length of the end face of the shaft shoulder of the extending bottom end of the stirring head.
A method of welding an edge weld by applying the above-described stationary shoulder to a weldment having an edge weld.
The invention has the beneficial effects that: according to the invention, the bottom shaft shoulder and the lateral shaft shoulder are designed on the static shaft shoulder according to the change of the width and the welding depth of the narrow plate with the edge welding seam welding piece to be welded, and in the welding process, the bottom shaft shoulder surface and the lateral shaft shoulder surface of the static shaft shoulder are completely attached to and closely contacted with the upper surface and the lateral surface of the edge welding seam welding piece respectively, so that the welding of the edge welding seam welding piece is realized, and the static shaft shoulder is convenient to mount and has wide applicability.
Drawings
FIG. 1 is a schematic structural view of a stationary shoulder for friction stir welding of an edge weld;
FIG. 2 is a schematic structural view of a lateral shoulder;
FIG. 3 is a schematic perspective view of the stationary shoulder of the present invention fixedly attached to the pin;
FIG. 4 is a schematic cross-sectional view of the stationary shoulder of the present invention in fixed connection with the pin;
FIG. 5 is a schematic view of a weldment having an edge weld;
FIG. 6 is a schematic view of a static shoulder welding method for friction stir welding of an edge weld used in a comparative example;
wherein: 1-static shaft shoulder, 11-bottom end shaft shoulder, 110-fixed hole, 12-lateral shaft shoulder, 120-through hole, 121-arc surface, 122-lateral plane, 13-through hole, 2-stirring head, 3-welding part and 4-connecting part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
In one embodiment of the present invention, as shown in fig. 5-6, the stationary shoulder 1 is designed to weld weldment 3 of different widths, wherein the width of one weldment 3 is smaller than the dimension of the radius of the bottom end of the stationary shoulder 1, and in order to meet this dimension requirement, the structure of the stationary shoulder 1 is modified as shown in fig. 1-4.
The static shaft shoulder 1 comprises a bottom end shaft shoulder 11 and a lateral shaft shoulder 12, and the lateral shaft shoulder 12 is detachably connected with the bottom end shaft shoulder 11 through a connecting piece 4; during welding, the bottom end shaft shoulder 11 is pressed into the lower part of the upper surface of the welding part 3 with the edge weld seam, and the lateral shaft shoulder 12 is in close contact with the side surface of the welding part 3, so that the lateral shaft shoulder 12 is connected with the bottom end shaft shoulder 11 according to the width of the welding part 3, and the lateral shaft shoulder 12 can be ensured to be in close contact with the side surface of the welding part 3 during welding.
The lateral shoulder 12 includes an arc-shaped surface 121 and a side plane 122, wherein the curvature of the arc-shaped surface 121 is the same for any type of lateral shoulder 12, and is consistent with the curvature of the bottom shoulder 11. Different lateral shoulders 12 connected with the same stationary shoulder 1 are different in height from the highest point of the arc-shaped surface 121 to the side plane 122, and during welding, the lateral shoulders 12 with different sizes are selected according to the difference between the radius of the bottom shoulder 11 and the size of the narrow welding part 3, so that the side plane 122 is in close contact with the side surface of the welding part 3.
In order to adapt the bottom shoulder 11 to be connected to the lateral shoulders 12 having different arc heights, the bottom shoulder 11 and the lateral shoulders 12 are provided with fixing holes 110 and through holes 120 which are matched in position and used for installing the connecting element 4. The fixing hole 110 is fixed at the bottom end shoulder 11, and the vertical heights of the through holes 120 of any lateral shoulder 12 to the highest point of the arc-shaped surface 121 of the lateral shoulder 12 are the same.
The stirring device further comprises a stirring head 2 arranged at the central axis position of the static shaft shoulder 1, the static shaft shoulder 1 is connected with the stirring head 2 through a through hole 13 arranged at the bottom, and the symmetry axis of the through hole 13 is collinear with the symmetry axis of the upper end surface 14 of the static shaft shoulder 1. During welding, the stirring head 2 is accurately aligned to a welding seam, and the bottom end shaft shoulder 11 and the lateral shaft shoulder 12 of the static shaft shoulder 1 are completely attached to and closely contacted with the upper surface and the lateral surface of the welding part respectively. Meanwhile, the vertical height of the lateral shaft shoulder 12 is equal to the length of the stirring head 2 extending out of the end face of the bottom end shaft shoulder 11.
A method of welding a weldment 3 having a marginal weld seam using the stationary shoulder 1 described above, comprising the steps of: first, the lateral shoulders 12 having a corresponding arc height are connected according to the width of the weldment 3. Then, after the lateral shoulder 12 is closely attached to the side surface of the weldment 3, the stirring head 2 is gradually pressed down until the stationary shoulder 1 is pressed below the upper surface of the weldment 3 having the edge weld, and it is ensured that the distance between any two points corresponding to the bottom shoulder surface of the stationary shoulder 1 and the upper surface of the weldment 3 in the vertical direction is 0-0.1mm, and then the welding is completed.
Meanwhile, in the invention, because of the lateral acting force applied by the lateral shaft shoulder 12 to the welding piece 3, if the width of the welding piece 3 on one side is too narrow in the welding process, the stirring head 2 can be moved to deviate to one side of a thick plate, so that the joint tightness of the welding surface and the good formability of the welding seam are ensured.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an adopt static shaft shoulder of friction stir welding edge weld, static shaft shoulder (1) including bottom end shaft shoulder (11), its characterized in that: the device also comprises a lateral shaft shoulder (12), wherein the lateral shaft shoulder (12) is detachably connected with the bottom end shaft shoulder (11) through a fixed connecting piece (4); during welding, the bottom end shaft shoulder (11) is pressed below the upper surface of the welding piece (3) with the edge welding seam, and the lateral shaft shoulder (12) is tightly contacted with the side surface of the welding piece (3) which is welded and has a narrow relative size.
2. The stationary shoulder for welding an edge weld using friction stir welding according to claim 1, wherein: the lateral shaft shoulder (12) comprises an arc-shaped surface (121) and a lateral flatA surface (122), the curvature of the arc surface (121) is the same as that of the bottom shaft shoulder (11), and the relative size of the side plane (122) and the welded part is narrowIs/are as followsThe side surfaces of the weld members (3) are in close contact.
3. The static shoulder for welding an edge weld using friction stir welding according to claim 2, wherein: the bottom shaft shoulder (11) is connected with lateral shaft shoulders (12) with different arc heights, the bottom shaft shoulder (11) and the lateral shaft shoulders (12) are provided with fixing holes (110) and through holes (120) which are matched in position, the fixing holes (110) are fixed in position on the bottom shaft shoulder (11), and the vertical heights from the through holes (120) on the lateral shaft shoulders (12) to the highest points of arc-shaped surfaces (121) of the lateral shaft shoulders (12) are the same.
4. The stationary shoulder for welding an edge weld using friction stir welding according to claim 1, wherein: the welding device also comprises a stirring head (2) arranged at the central axis position of the static shaft shoulder (1), and the width of at least one welded part (3) is smaller than the radius of the shaft shoulder (11) at the bottom end.
5. The static shoulder for welding an edge weld using friction stir welding according to claim 4, wherein: the selected arc height of the lateral shoulder (12) is equal to the difference between the radius of the bottom shoulder (11) and the size of the narrow weldment (3).
6. The static shoulder for welding an edge weld using friction stir welding according to claim 4, wherein: the vertical height of the lateral shaft shoulder (12) is equal to the length of the stirring head (2) extending out of the end face of the bottom end shaft shoulder (11).
7. A method for welding an edge weld, characterized by: method of welding a weldment (3) having an edge weld using a stationary shoulder for welding an edge weld using friction stir welding as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686610.XA CN108817644B (en) | 2018-06-28 | 2018-06-28 | Static shaft shoulder for welding edge weld by friction stir welding and welding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686610.XA CN108817644B (en) | 2018-06-28 | 2018-06-28 | Static shaft shoulder for welding edge weld by friction stir welding and welding method |
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| Publication Number | Publication Date |
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| CN108817644A CN108817644A (en) | 2018-11-16 |
| CN108817644B true CN108817644B (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810686610.XA Active CN108817644B (en) | 2018-06-28 | 2018-06-28 | Static shaft shoulder for welding edge weld by friction stir welding and welding method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102019006413A1 (en) * | 2019-09-11 | 2021-03-11 | Grenzebach Maschinenbau Gmbh | Device and method for increasing the speed and increasing the stability of the welding pin during friction stir welding. |
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| JP2002263863A (en) * | 2001-03-08 | 2002-09-17 | Nippon Light Metal Co Ltd | Friction/agitation joining tool |
| CN104014926A (en) * | 2014-05-30 | 2014-09-03 | 北京赛福斯特技术有限公司 | Aclinal self-upsetting, stirring and friction welding method and tool |
| CN204621347U (en) * | 2014-05-30 | 2015-09-09 | 北京赛福斯特技术有限公司 | A kind of friction stir welding soldering tip for complex structural members such as hollows |
| CN204975682U (en) * | 2015-09-15 | 2016-01-20 | 昆山斯格威电子科技有限公司 | Friction stir spot welding equipment with from clamping device |
| CN106001905A (en) * | 2016-07-01 | 2016-10-12 | 重庆市光学机械研究所 | Friction stir welding device for static shaft shoulder |
| CN106077946A (en) * | 2016-07-06 | 2016-11-09 | 上海航天设备制造总厂 | A kind of postwelding material surface is without thinning New type agitation friction welding (FW) soldering set |
| CN106624343A (en) * | 2017-01-23 | 2017-05-10 | 沈阳航空航天大学 | Stirring friction welding tool and method for repairing keyhole defect through stirring friction welding tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070241163A1 (en) * | 2006-04-17 | 2007-10-18 | Valant Michael E | Apparatus And Method For Friction Stir Spot Welding |
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2018
- 2018-06-28 CN CN201810686610.XA patent/CN108817644B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002263863A (en) * | 2001-03-08 | 2002-09-17 | Nippon Light Metal Co Ltd | Friction/agitation joining tool |
| CN104014926A (en) * | 2014-05-30 | 2014-09-03 | 北京赛福斯特技术有限公司 | Aclinal self-upsetting, stirring and friction welding method and tool |
| CN204621347U (en) * | 2014-05-30 | 2015-09-09 | 北京赛福斯特技术有限公司 | A kind of friction stir welding soldering tip for complex structural members such as hollows |
| CN204975682U (en) * | 2015-09-15 | 2016-01-20 | 昆山斯格威电子科技有限公司 | Friction stir spot welding equipment with from clamping device |
| CN106001905A (en) * | 2016-07-01 | 2016-10-12 | 重庆市光学机械研究所 | Friction stir welding device for static shaft shoulder |
| CN106077946A (en) * | 2016-07-06 | 2016-11-09 | 上海航天设备制造总厂 | A kind of postwelding material surface is without thinning New type agitation friction welding (FW) soldering set |
| CN106624343A (en) * | 2017-01-23 | 2017-05-10 | 沈阳航空航天大学 | Stirring friction welding tool and method for repairing keyhole defect through stirring friction welding tool |
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| CN108817644A (en) | 2018-11-16 |
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