CN103949769A - Stirring head for friction stir welding used for welding parts with different thicknesses and welding method - Google Patents
Stirring head for friction stir welding used for welding parts with different thicknesses and welding method Download PDFInfo
- Publication number
- CN103949769A CN103949769A CN201410186236.9A CN201410186236A CN103949769A CN 103949769 A CN103949769 A CN 103949769A CN 201410186236 A CN201410186236 A CN 201410186236A CN 103949769 A CN103949769 A CN 103949769A
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- China
- Prior art keywords
- welding
- head
- stirring
- uniform thickness
- shaft shoulder
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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
- B23K20/1255—Tools therefor, e.g. characterised by the shape of the probe
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
Abstract
The invention relates to a stirring head for friction stir welding used for welding parts with different thicknesses and a welding method. A cutting accessory shaft shoulder is added on the basis of the existing stirring head, and the accessory shaft shoulder plays a role in cutting and removing the redundant material on the thicker side of connectors having different thicknesses to acquire a flat friction stir welding joint. The method is carried out on common friction stir welding equipment, a nose or tool of the equipment is not transformed at all, then the requirements on the equipment and the welding method are greatly simplified; in addition, in the welding process, a shaft shoulder of the stirring head and the two side surfaces of the part are parallel, so that the phenomena that metal of the connector is insufficiently extruded or damaged by shearing are not caused, the integrity and the reliability of the part are guaranteed; moreover, the accessory cutting shaft shoulder of the stirring head also plays an important role as for the part whose thickness suddenly changes, and the smooth welding process of the part is guaranteed.
Description
Technical field
The invention belongs to agitating friction welding field, relate to a kind of welding not stirring friction welding agitator head and the method for uniform thickness part, the easy machine-shaping of this stirring-head, welding method is easy and simple to handle, and joint quality is high, and good reliability is easy to apply.
Background technology
The friction stir welding of Britain's institute of welding (The Welding Institute) invention (Friction Stir Welding is called for short FSW, United States Patent (USP) NO.5,460,317) is a solid phase interconnection technique.This technology provides brand-new thinking for traditional melting welding is difficult to the reliable welding difficult problem solving, and uniform thickness Welding Problems is not typical case.Adopt traditional melting welding TIG to weld not uniform thickness part, need butt joint in advance to process, according to process requirements, process specific groove.Laser Welding is welded not uniform thickness part, and butt joint preweld interval has strict requirement.Though these two kinds of techniques are all applicable to the not welding of uniform thickness part, but the pore that is difficult to avoid common in melting welding, defect and the large problem of post welding distortion such as be mingled with.The appearance of agitating friction welding technology has well solved the Welding Problems that melting welding is difficult to welding material and structural member, can avoid pore, slag inclusion, defects i.e.cracks common in melting welding, is a kind of not reliable method of uniform thickness weld parts of realizing.When conventional friction stir welding welds not equal thickness joint, the scheme adopting is according to the difference in thickness of joint both sides mother metal, reconditioner brilliance degree or frock inclination angle, guarantee that welding head and part are certain angle of inclination, then carry out agitating friction welding, attractive in appearance, the excellent performance of not uniform thickness joint shaping obtaining.Although this scheme can realize the not welding of uniform thickness joint, but in welding process, need welding equipment when thering is welding inclination angle, also must in the plane perpendicular to welding direction, adjust angle, thereby guarantee head and between uniform thickness joint, do not have certain inclination angle and then realize the not agitating friction welding of uniform thickness joint.This scheme requires head to meet simultaneously and realizes the requirement that both direction is adjusted angle of inclination, higher to welding equipment requirement.In addition, also can meet the not condition of uniform thickness agitating friction welding by adjusting frock, but in a lot of situations, because not allowing frock, the restriction of part joint and product size do not adjust certain angle, thereby, above-mentioned conventional friction stir welding welds not uniform thickness joint and, in engineering application process, all has certain limitation.
Adopt conventional agitating friction welding technology to weld not uniform thickness part, need to adjust head or the frock of welding equipment, realize stirring-head simultaneously and tilt in welding direction and perpendicular to the both direction of welding direction, higher to equipment requirement, increase difficulty and the cost of welding; And in welding process, easily have the shaft shoulder not enough or shearing damage to thin plate side extruding metal of stirring-head, even cause the generation of defect or the damage of part, butt joint performance impact is larger, so its control of operation to welding process requires also higher; In addition, while adopting the part of traditional agitating friction welding technology throat thickness sudden change, thereby need segmentation multiple welding to realize the connection of part, more consuming time, difficulty is controlled.
Summary of the invention
The technical problem solving
For fear of the deficiencies in the prior art part, the present invention proposes a kind of welding not stirring friction welding agitator head and the welding method of uniform thickness part.
Technical scheme
Welding is a stirring friction welding agitator head for uniform thickness part not, it is characterized in that: the auxiliary shaft shoulder and the shaft shoulder end face of cutting stirring-head are the conical surface of 3 °～70 °, and the aspect ratio that the shaft shoulder is assisted in cutting is the high 3mm～20mm of thickness larger side in uniform thickness joint not.
The described conical surface is provided with screw thread, and the rotation direction of screw thread is contrary with the rotation direction of screw thread on mixing needle.
The number of institute's screw thread is 1～6.
A kind of welding method that adopts described any one stirring friction welding agitator head, it is characterized in that step is as follows: stirring-head is placed on welding equipment, and with 100～3000 revs/min of rotations, the axis of mixing needle overlaps with butt welds not, simultaneously the thicker side of uniform thickness joint not in advance side, then it is close to soldering part that welding equipment drives stirring-head, when the thickness smaller side mother metal upper surface of the sturdy not uniform thickness of the shaft shoulder joint of stirring-head, stop after 2～20 seconds along uniform thickness weld seam not and carry out agitating friction welding.
Beneficial effect
A kind of welding that the present invention proposes is stirring friction welding agitator head and the welding method of uniform thickness part not, on the basis of existing stirring-head, increase the auxiliary shaft shoulder of cutting, the effect of this auxiliary shaft shoulder is that the unnecessary material of thicker side in uniform thickness joint is removed not in cutting, and obtains smooth stir friction welding seam.Can on conventional agitating friction welding equipment, carry out, without the head of equipment or frock are carried out to any repacking, greatly simplify the requirement to equipment and welding method; And in welding process, the shaft shoulder of stirring-head is parallel to the both side surface of part, can not cause joint extruding metal deficiency or shear damage, be conducive to guarantee integrality and the reliability of part; In addition, for the part of abrupt changes in thickness, the auxiliary cutting shaft shoulder of stirring-head also will play a significant role, and guarantee carrying out smoothly of weld parts process.
Utilize this soldering appliance to weld not uniform thickness part, do not need to increase main shaft tilt adjustments axle, do not need to adjust frock yet, can directly carry out agitating friction welding, and this soldering appliance and method are also applicable to the part of gradient thickness, greatly simplify the not technical process of uniform thickness part agitating friction welding, significantly promoted the engineering adaptability of friction stir welding.
Requirement to welding equipment when soldering appliance of the present invention not only can reduce agitating friction and welds uniform thickness part not, simplify welding process, but also can guarantee integrality and the reliability of welding point, improve the joint performance of part, in addition, for the weld parts of abrupt changes in thickness, soldering appliance of the present invention also has obvious advantage.Therefore, the present invention can effectively optimize the not technical process of uniform thickness part agitating friction welding, simplifies the requirement to welding equipment, improves welding efficiency, guarantees quality of weld joint, and the engineering application of friction stir welding is had to very large impetus.
Accompanying drawing explanation
Fig. 1: stirring-head schematic diagram of the present invention
1-mixing needle, 2-shaft shoulder end face, the auxiliary shaft shoulder of 3-cutting;
Fig. 2: technical solution of the present invention is implemented schematic diagram
4-stirring-head, 5-slab, 6-thin plate, A-stirring-head direction of rotation, B-welding direction (stirring-head direction of advance);
Fig. 3: technical solution of the present invention enforcement 2024/6082 is uniform thickness welded joints in aluminium alloy schematic diagram not.
The specific embodiment
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
Stirring-head is placed on welding equipment, and with certain rotating speed rotation (according to the welding of soldered material), the axis of mixing needle overlaps with butt welds not, simultaneously the thicker side of uniform thickness joint not in advance side, then it is close to soldering part that welding equipment drives stirring-head, when the thin plate side mother metal upper surface of the sturdy not uniform thickness of the shaft shoulder end face joint of stirring-head, stop after certain hour along uniform thickness weld seam not and carry out agitating friction welding.
Embodiment mono-
Welding 6082 is uniform thickness aluminium alloy not, and mother metal thickness is respectively 5mm and 7mm.
Processing stirring-head shaft shoulder diameter is Φ 12mm, and the angle of the auxiliary shaft shoulder of cutting is 45 °, is highly 10mm.
Welding process: stirring-head is placed on welding equipment, and with 500～1500 revs/min of rotations, direction of rotation is counterclockwise, after shaft shoulder contact sheet mother metal upper surface, after continuing rotation and stopping on workpiece 5～10 seconds, then welds along weld seam.Result of the test shows that joint inside does not have defect, and the fracture position of tension test part is all in the heat affected area of the friction stir welding of 5mm mother metal.
Embodiment bis-
Welding 2024 is uniform thickness aluminium alloy not, and mother metal thickness is respectively 2mm and 4mm;
Processing stirring-head shaft shoulder place diameter is Φ 10mm, and the angle of the auxiliary shaft shoulder of cutting is 8 °, is highly 14mm.
Welding process: stirring-head is placed on welding equipment, and with 800～2000 revs/min of rotations, direction of rotation is clockwise, after shaft shoulder contact sheet mother metal upper surface, after continuing rotation and stopping on workpiece 3～8 seconds, then welds along weld seam.Result of the test faced joint inside does not have defect, and the fracture position of tension test part is all at the friction stir welding of 2mm mother metal side.
Embodiment tri-
Welding 2024 and 6082 is uniform thickness aluminium alloy not, and 2024 thickness of aluminum alloy are 4mm, and 6082 thickness of aluminum alloy are respectively 4.5mm, 5mm, 5.5mm and 6mm.
Processing stirring-head shaft shoulder place diameter is Φ 15mm, and the angle of the auxiliary shaft shoulder of cutting is 70 °, is highly 20mm.
Welding process: stirring-head is placed on welding equipment, and with 600～1000 revs/min of rotations, direction of rotation is counterclockwise, after the shaft shoulder contacts 2024 aluminium alloy mother metal upper surfaces, after continuing rotation and stopping on workpiece 5～10 seconds, then welds along weld seam.Result of the test faced joint inside does not have defect, and the fracture position of tension test part is at the edge of 6082 side friction stir weldings, and result as shown in Figure 3.
Claims (4)
1. weld a not stirring friction welding agitator head for uniform thickness part, it is characterized in that: the auxiliary shaft shoulder and the shaft shoulder end face of cutting stirring-head are the conical surface of 3 °～70 °, the aspect ratio that the shaft shoulder is assisted in cutting is the high 3mm～20mm of thickness larger side in uniform thickness joint not.
2. weld according to claim 1 the not stirring friction welding agitator head of uniform thickness part, it is characterized in that: the described conical surface is provided with screw thread, and the rotation direction of screw thread is contrary with the rotation direction of screw thread on mixing needle.
3. weld according to claim 1 the not stirring friction welding agitator head of uniform thickness part, it is characterized in that: the number of institute's screw thread is 1～6.
4. a welding method that adopts any one stirring friction welding agitator head described in claim 1～3, it is characterized in that step is as follows: stirring-head is placed on welding equipment, and with 100～3000 revs/min of rotations, the axis of mixing needle overlaps with butt welds not, simultaneously the thicker side of uniform thickness joint not in advance side, then it is close to soldering part that welding equipment drives stirring-head, when the thickness smaller side mother metal upper surface of the sturdy not uniform thickness of the shaft shoulder joint of stirring-head, stop after 2～20 seconds along uniform thickness weld seam not and carry out agitating friction welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186236.9A CN103949769A (en) | 2014-05-05 | 2014-05-05 | Stirring head for friction stir welding used for welding parts with different thicknesses and welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186236.9A CN103949769A (en) | 2014-05-05 | 2014-05-05 | Stirring head for friction stir welding used for welding parts with different thicknesses and welding method |
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|---|---|
| CN103949769A true CN103949769A (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410186236.9A Pending CN103949769A (en) | 2014-05-05 | 2014-05-05 | Stirring head for friction stir welding used for welding parts with different thicknesses and welding method |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033447A (en) * | 2015-09-18 | 2015-11-11 | 哈尔滨工业大学 | Strong-deformation-interface type friction stir welding soldering tool |
| CN105522275A (en) * | 2016-02-05 | 2016-04-27 | 河南正航主轴科技有限公司 | Stirring head for friction stir welding |
| CN106392298A (en) * | 2016-10-17 | 2017-02-15 | 南昌航空大学 | Friction stir welding method for dissimilar metal of aluminum and steel with unequal thickness |
| CN108608111A (en) * | 2018-04-27 | 2018-10-02 | 航天工程装备（苏州）有限公司 | A kind of agitating friction weldering of the non-planar plate static shaft shoulder, preparation and welding method |
| CN108883493A (en) * | 2016-03-23 | 2018-11-23 | 格林策巴赫机械制造有限公司 | Have between united piece the workpiece of difference in height without residue friction stir welding apparatus and method |
| CN109175670A (en) * | 2018-09-17 | 2019-01-11 | 上海航天设备制造总厂有限公司 | The non-equal static shaft shoulder stirring tool of heavy-gauge sheetings welding of one kind |
| CN109551096A (en) * | 2018-12-10 | 2019-04-02 | 上海航天设备制造总厂有限公司 | A kind of double static shaft shoulders silk filling friction stir welding methods of complete penetraction and fusion in welding |
| CN110548985A (en) * | 2019-06-27 | 2019-12-10 | 上海航天精密机械研究所 | Friction stir welding method for parts with different thicknesses |
| CN111511499A (en) * | 2018-04-02 | 2020-08-07 | 日本轻金属株式会社 | Method for manufacturing liquid cooling jacket |
| CN113165104A (en) * | 2018-11-05 | 2021-07-23 | 日本轻金属株式会社 | Method for manufacturing liquid-cooled jacket and friction stir welding method |
| CN113302014A (en) * | 2019-02-01 | 2021-08-24 | 日本轻金属株式会社 | Bonding method |
| CN113302015A (en) * | 2019-04-15 | 2021-08-24 | 日本轻金属株式会社 | Method for manufacturing liquid cooling jacket |
| US11654508B2 (en) | 2017-09-27 | 2023-05-23 | Nippon Light Metal Company, Ltd. | Method for producing liquid-cooled jacket |
| US11654507B2 (en) | 2017-12-18 | 2023-05-23 | Nippon Light Metal Company, Ltd. | Method for manufacturing liquid-cooling jacket |
| US11707799B2 (en) | 2018-12-19 | 2023-07-25 | Nippon Light Metal Company, Ltd. | Joining method |
| US11712748B2 (en) | 2017-09-27 | 2023-08-01 | Nippon Light Metal Company, Ltd. | Method for producing liquid-cooled jacket |
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| JP2001300744A (en) * | 2000-04-24 | 2001-10-30 | Nissho Iwai Hitetsu Hanbai Kk | Method of friction stir joining and tool for friction stir joining |
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| CN103071916A (en) * | 2013-02-06 | 2013-05-01 | 南京航空航天大学 | Shaft shoulder-free friction stir welding stirring head capable of reducing flash |
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Patent Citations (4)
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| JP2001300744A (en) * | 2000-04-24 | 2001-10-30 | Nissho Iwai Hitetsu Hanbai Kk | Method of friction stir joining and tool for friction stir joining |
| CN101028667A (en) * | 2006-02-27 | 2007-09-05 | 株式会社日立制作所 | Friction stir welding method |
| CN102151979A (en) * | 2011-04-28 | 2011-08-17 | 西北工业大学 | Combined friction stir welding mixing head aiming at different thicknesses of sheets |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033447B (en) * | 2015-09-18 | 2017-08-25 | 哈尔滨工业大学 | A kind of strong adjustable friction stir welding tools of deformation depth sounding in interface |
| CN105033447A (en) * | 2015-09-18 | 2015-11-11 | 哈尔滨工业大学 | Strong-deformation-interface type friction stir welding soldering tool |
| CN105522275A (en) * | 2016-02-05 | 2016-04-27 | 河南正航主轴科技有限公司 | Stirring head for friction stir welding |
| US11065714B2 (en) | 2016-03-23 | 2021-07-20 | Grenzebach Maschinenbau Gmbh | Device and method for the residue-free friction stir welding of workpieces with height differences between the joint partners |
| CN108883493A (en) * | 2016-03-23 | 2018-11-23 | 格林策巴赫机械制造有限公司 | Have between united piece the workpiece of difference in height without residue friction stir welding apparatus and method |
| CN106392298A (en) * | 2016-10-17 | 2017-02-15 | 南昌航空大学 | Friction stir welding method for dissimilar metal of aluminum and steel with unequal thickness |
| US11712748B2 (en) | 2017-09-27 | 2023-08-01 | Nippon Light Metal Company, Ltd. | Method for producing liquid-cooled jacket |
| US11654508B2 (en) | 2017-09-27 | 2023-05-23 | Nippon Light Metal Company, Ltd. | Method for producing liquid-cooled jacket |
| US11654507B2 (en) | 2017-12-18 | 2023-05-23 | Nippon Light Metal Company, Ltd. | Method for manufacturing liquid-cooling jacket |
| CN111511499A (en) * | 2018-04-02 | 2020-08-07 | 日本轻金属株式会社 | Method for manufacturing liquid cooling jacket |
| US11707798B2 (en) | 2018-04-02 | 2023-07-25 | Nippon Light Metal Company, Ltd. | Method for manufacturing liquid-cooled jacket |
| CN108608111A (en) * | 2018-04-27 | 2018-10-02 | 航天工程装备（苏州）有限公司 | A kind of agitating friction weldering of the non-planar plate static shaft shoulder, preparation and welding method |
| CN109175670A (en) * | 2018-09-17 | 2019-01-11 | 上海航天设备制造总厂有限公司 | The non-equal static shaft shoulder stirring tool of heavy-gauge sheetings welding of one kind |
| CN113165104A (en) * | 2018-11-05 | 2021-07-23 | 日本轻金属株式会社 | Method for manufacturing liquid-cooled jacket and friction stir welding method |
| CN109551096A (en) * | 2018-12-10 | 2019-04-02 | 上海航天设备制造总厂有限公司 | A kind of double static shaft shoulders silk filling friction stir welding methods of complete penetraction and fusion in welding |
| US11707799B2 (en) | 2018-12-19 | 2023-07-25 | Nippon Light Metal Company, Ltd. | Joining method |
| CN113302014A (en) * | 2019-02-01 | 2021-08-24 | 日本轻金属株式会社 | Bonding method |
| CN113302014B (en) * | 2019-02-01 | 2022-09-20 | 日本轻金属株式会社 | Bonding method |
| CN113302015A (en) * | 2019-04-15 | 2021-08-24 | 日本轻金属株式会社 | Method for manufacturing liquid cooling jacket |
| CN110548985A (en) * | 2019-06-27 | 2019-12-10 | 上海航天精密机械研究所 | Friction stir welding method for parts with different thicknesses |
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Application publication date: 20140730 |