CN105290606A - Friction stir welding method for foam aluminum material - Google Patents
Friction stir welding method for foam aluminum material Download PDFInfo
- Publication number
- CN105290606A CN105290606A CN201510759698.XA CN201510759698A CN105290606A CN 105290606 A CN105290606 A CN 105290606A CN 201510759698 A CN201510759698 A CN 201510759698A CN 105290606 A CN105290606 A CN 105290606A
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- CN
- China
- Prior art keywords
- foamed aluminium
- aluminium material
- welding
- aluminum material
- foam aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B23K20/1205—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 translation movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—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
- B23K20/128—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 making use of additional material
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a friction stir welding method for a foam aluminum material. The method comprises the following steps that (1), oil stain and oxide skin removing treatment is carried out on the upper surfaces and the lower surfaces of the foam aluminum material and a filling material, a welding interface of the foam aluminum material and the filling material is ground, impurities are removed through ultrasonic oscillation, and drying is carried out; and the foam aluminum material and the filling aluminum material are fixed through a clamp, and a connecting piece of the structure with the foam aluminum material on the two sides and the filling material in the middle is formed; (2), a stirring head carries out stirring along the connecting position; and (3), the material is cooled to the room temperature in the air, foam aluminum overflowing from a weld joint is removed, a clamp exerted on the foam aluminum material is removed, and the complete weld joint is obtained. According to the method, the welding condition environment requirement is not high, the welding speed is high, and the working procedure is simple; and meanwhile, the temperature in the welding process is not high, and therefore collapsing caused by the phenomenon that a porous structure cannot be supported by itself in the welding process at a high temperature is avoided.
Description
Technical field
The present invention relates to a kind of agitating friction welding method of foamed aluminium material, belong to welding technology field.
Background technology
Foamed aluminium adds additive in pure aluminum or aluminum alloy, is then made through foaming or other technique, has the feature of metal and bubble simultaneously.Its density is little, high temperature resistant, anticorrosive, sound insulation and noise reduction, thermal conductivity are low, absorb that impact capacity is strong, fire protecting performance is strong, weatherability is strong, have filter capacity, electromagnetic wave shielding is high, forming accuracy is high, easy processing, easily installation, can carry out external coating.The performance of these excellences of foamed aluminium makes it have broad application prospects at current Material Field, both can be used for aerospace industry, communications and transportation industry and building structure industrial aspect, also can be used as the application of filtration and the other side such as parting material, heat exchanger and cooler material, catalyst carrier, liquid current control, silencer, water purification.
Also have some foamed aluminium methods of attachment both at home and abroad at present, conventional method mainly contains cementing and vacuum brazing.Solvent cement joint is except intensity is lower, also higher to the requirement of working environment, such as: serviceability temperature generally can not more than 100 DEG C, can not work under strong ultraviolet radiation, easily release the shortcomings such as gas under vacuum environment.Method for brazing connects foamed aluminium mainly by adopting homemade intermediate layer solder, heats in a vacuum furnace, pressurize, is incubated solder is evenly being spread in interface, thus realize a kind of method of foamed aluminium connection.But this method needs self-control intermediate solder and brazing flux, need airtight welding in the vacuum drying oven of band nitrogen protection, its complex procedures, welding interval is long, cost is higher.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of agitating friction welding method of foamed aluminium material, welding condition environmental requirement is not high, speed of welding is fast, operation is simple, and simultaneously not high the avoiding of welding process temperature can cause its loose structure at high temperature can not support own wt because temperature is too high and produce and subside in welding process.
Technical scheme: for achieving the above object, the agitating friction welding method of a kind of foamed aluminium material of the present invention, comprises the following steps:
(1) removal oil stain and oxide skin process are carried out to the upper and lower surface of foamed aluminium material and packing material, then foamed aluminium material and packing material weld interface are polished, use supersonic oscillations removal of contamination afterwards, dry; Foamed aluminium material and filling aluminium fixture are fixed, formation structure is both sides is foamed aluminium material, and centre is the connector of packing material again;
(2) stirring-head is stirred along junction, wherein Rotating speed is 1600-2000rpm, stirring-head pace 150mm/min; Packing material length is consistent with foamed aluminium material, and thickness is higher than foamed aluminium material;
(3) be cooled to room temperature in atmosphere, remove the foamed aluminium overflowed in weld seam, remove the fixture be applied on foamed aluminium material, obtain complete weld seam.
As preferably, in described step (1), the material of packing material is identical with foamed aluminium material composition or close.
As preferably, described packing material is the pure aluminum or aluminum alloy identical with foamed aluminium composition, by selecting suitable weld seam packing material, make it to overcome subsiding and avoiding the formation of commissure compact structure of foamed aluminium porous material welding process Hole structure in friction stir welding welding process, the jointing that final formation is qualified.
As preferably, in described step (1), packing material thickness is higher than foamed aluminium material thickness 0.5-1mm.
As preferably, in described step (2), stirring-head material is 9341 tool steel, and shaft shoulder diameter is 10mm, the long 3.9mm of mixing needle containing left hand thread, pitch 1mm, re-entrant angle 7-8 ° in the shaft shoulder.
In the present invention, foamed aluminium loose structure determines it directly can not carry out friction stir welding, and also directly should not adopt brazing, reason is as follows: friction stir welding is a kind of solid phase connecting method under mechanical force and frictional heat effect.In friction stir welding process, the special shaft shoulder of cylindricality band and the convex stirring-head of pin are rotating and slowly insert welded part, fricting shearing resistance between stirring-head and soldered material creates frictional heat, make the material thermoplastification of stirring-head adjacent domain, welding temperature generally can not reach and exceed the fusing point of soldered material, when stirring-head be rotating move forward time, the metal material of thermoplastification shifts on edge backward from the forward position of stirring-head, and at the stirring-head shaft shoulder and workpiece surface frictional heat with under forging and pressing acting in conjunction, form fine and close solid diffusivity joint.Foamed aluminium directly carries out friction stir welding, and weld seam both sides mother metal destroys loose structure under the effect of the pressure, can not realize reliable connection; Foamed aluminium directly carries out soldering, is also because loose structure exists, and the selection of solder, needs the flowing of solder quality and the solder of filling and fills uncertain, is difficult to reliably be connected.The technical program have employed the combination of friction stir welding and soldering, has drawn both advantages, avoids and its loose structure can be caused in welding process at high temperature can not to support own wt because temperature is too high and produce subsiding.
Beneficial effect: the agitating friction welding method of foamed aluminium material of the present invention, welding condition environmental requirement is not high, speed of welding is fast, operation is simple, and simultaneously not high the avoiding of welding process temperature can cause its loose structure at high temperature can not support own wt because temperature is too high and produce and subside in welding process.
Accompanying drawing explanation
Fig. 1 is that the present invention welds schematic diagram;
Fig. 2 is configuration of pin structural representation
Fig. 3 is welding foamed aluminium material clamping schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
Soldering test is realized by FSW-3LM-002 type planer type numerical control friction stir welding machine, and experiment material used is porosity is the 4mm foamed aluminium of 70% and the packing material 3 of 5mm fine aluminium.
An agitating friction welding method for foamed aluminium material 1, comprises the following steps:
(1) removal oil stain and oxide skin process are carried out to the upper and lower surface of foamed aluminium material 1 and packing material 3, then foamed aluminium material 1 and filling aluminium weld interface (packing material 3 thickness is higher than foamed aluminium material 1 thickness 0.5-1mm) are polished, use supersonic oscillations removal of contamination afterwards, dry; Again by foamed aluminium material 1 and filling aluminium, with fixture, foamed aluminium material 1 is fixed up and down, forming structure is: both sides are foamed aluminium material 1, and centre is the connector of packing material 3, as shown in Figure 1 to Figure 3;
(2) make stirring-head 2 stir along junction, wherein welding condition is: stirring-head 2 rotary speed is 1600-2000rpm, speed of welding (stirring-head 2 pace) 150mm/min; Packing material 3 is fine aluminium, and length is consistent with foamed aluminium material 1, and width is 1-1.5mm, and thickness is a little more than foamed aluminium material 10.5-1mm; Stirring-head 2 material is 9341 tool steel, and shaft shoulder diameter is 10mm, and the long 3.9mm of mixing needle also contains left hand thread, pitch 1mm, re-entrant angle 7-80 in the shaft shoulder;
(3) be cooled to room temperature in atmosphere, remove the foamed aluminium overflowed in weld seam, remove the fixture be applied on left and right foamed aluminium material 1, obtain complete weld seam.
Material after welding above-described embodiment carries out performance test, according to GB/T2651-2008 " welding point stretching test method ", the banjo fixing butt jointing tensile strength values recording friction stir welding welding foamed aluminium material 1 reaches 3.34Mpa, reach the tensile strength of foamed aluminium material 1 itself, meet GB/T12467.2-2009 " metal material fusion welding quality requires that part 2 full-quality requires ".
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. an agitating friction welding method for foamed aluminium material, is characterized in that, comprise the following steps:
(1) removal oil stain and oxide skin process are carried out to the upper and lower surface of foamed aluminium material and packing material, then foamed aluminium material and packing material weld interface are polished, use supersonic oscillations removal of contamination afterwards, dry; Foamed aluminium material and filling aluminium fixture are fixed, formation structure is both sides is foamed aluminium material, and centre is the connector of packing material again;
(2) stirring-head is stirred along junction, wherein Rotating speed is 1600-2000rpm, stirring-head pace 150mm/min; Packing material length is consistent with foamed aluminium material length, and thickness is higher than foamed aluminium material;
(3) be cooled to room temperature in atmosphere, remove the foamed aluminium overflowed in weld seam, remove the fixture be applied on foamed aluminium material, obtain complete weld seam.
2. the agitating friction welding method of foamed aluminium material according to claim 1, is characterized in that: in described step (1), the material of packing material is identical with foamed aluminium material composition or close.
3. the agitating friction welding method of foamed aluminium material according to claim 2, is characterized in that: described packing material is the pure aluminum or aluminum alloy identical with foamed aluminium composition.
4. the agitating friction welding method of foamed aluminium material according to claim 1, is characterized in that: in described step (1), packing material thickness is higher than foamed aluminium material thickness 0.5-1mm.
5. the agitating friction welding method of foamed aluminium material according to claim 1, it is characterized in that: in described step (2), stirring-head material is 9341 tool steel, and shaft shoulder diameter is 10mm, the long 3.9mm of mixing needle also contains left hand thread, pitch 1mm, re-entrant angle 7-8 ° in the shaft shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510759698.XA CN105290606A (en) | 2015-11-10 | 2015-11-10 | Friction stir welding method for foam aluminum material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510759698.XA CN105290606A (en) | 2015-11-10 | 2015-11-10 | Friction stir welding method for foam aluminum material |
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| CN105290606A true CN105290606A (en) | 2016-02-03 |
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| CN201510759698.XA Pending CN105290606A (en) | 2015-11-10 | 2015-11-10 | Friction stir welding method for foam aluminum material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108396163A (en) * | 2018-01-22 | 2018-08-14 | 武汉理工大学 | Carbon nanotube enhances the preparation method of foamed aluminium radical composite material |
| CN109500485A (en) * | 2018-10-15 | 2019-03-22 | 西安建筑科技大学 | A kind of metal foamed aluminium sandwich material, processing method and processing unit (plant) |
| CN110587110A (en) * | 2019-08-07 | 2019-12-20 | 山东碳垣纳米科技有限公司 | Welding method of high-melting-point foam metal plate and metal plate |
| CN113727803A (en) * | 2019-05-17 | 2021-11-30 | 日本轻金属株式会社 | Method for manufacturing hollow container |
Citations (5)
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| DE19917071A1 (en) * | 1999-04-15 | 2000-10-19 | Slv Muenchen Gmbh | Friction welding, of e.g. hard metals, metals, ceramics, stone, glass or plastics, comprises pressing rotating convex and concave surfaces together to form a friction region adjacent a re-entrant region into which plastic material flows |
| WO2002018089A1 (en) * | 2000-08-26 | 2002-03-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for joining foamed metallic materials |
| 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 |
| JP5641248B2 (en) * | 2009-03-19 | 2014-12-17 | 国立大学法人群馬大学 | Method for producing foam metal precursor and method for producing foam metal |
| CN104818401A (en) * | 2015-04-27 | 2015-08-05 | 武汉理工大学 | Friction stir welding method for preparing closed-cell foam metal |
-
2015
- 2015-11-10 CN CN201510759698.XA patent/CN105290606A/en active Pending
Patent Citations (5)
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| DE19917071A1 (en) * | 1999-04-15 | 2000-10-19 | Slv Muenchen Gmbh | Friction welding, of e.g. hard metals, metals, ceramics, stone, glass or plastics, comprises pressing rotating convex and concave surfaces together to form a friction region adjacent a re-entrant region into which plastic material flows |
| WO2002018089A1 (en) * | 2000-08-26 | 2002-03-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for joining foamed metallic materials |
| JP5641248B2 (en) * | 2009-03-19 | 2014-12-17 | 国立大学法人群馬大学 | Method for producing foam metal precursor and method for producing foam metal |
| 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 |
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Non-Patent Citations (1)
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| 刘培生 等: "《泡沫金属》", 31 May 2012, 中南大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108396163A (en) * | 2018-01-22 | 2018-08-14 | 武汉理工大学 | Carbon nanotube enhances the preparation method of foamed aluminium radical composite material |
| CN109500485A (en) * | 2018-10-15 | 2019-03-22 | 西安建筑科技大学 | A kind of metal foamed aluminium sandwich material, processing method and processing unit (plant) |
| CN113727803A (en) * | 2019-05-17 | 2021-11-30 | 日本轻金属株式会社 | Method for manufacturing hollow container |
| CN110587110A (en) * | 2019-08-07 | 2019-12-20 | 山东碳垣纳米科技有限公司 | Welding method of high-melting-point foam metal plate and metal plate |
| CN110587110B (en) * | 2019-08-07 | 2021-05-14 | 山东碳垣纳米科技有限公司 | Welding method of high-melting-point foam metal plate and metal plate |
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Application publication date: 20160203 |