CN106583911B - A kind of aluminium-magnesium dissimilar metal thin plate interconnection method and special-purpose section structure - Google Patents
A kind of aluminium-magnesium dissimilar metal thin plate interconnection method and special-purpose section structure Download PDFInfo
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- CN106583911B CN106583911B CN201611091484.0A CN201611091484A CN106583911B CN 106583911 B CN106583911 B CN 106583911B CN 201611091484 A CN201611091484 A CN 201611091484A CN 106583911 B CN106583911 B CN 106583911B
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 36
- GANNOFFDYMSBSZ-UHFFFAOYSA-N [AlH3].[Mg] Chemical compound [AlH3].[Mg] GANNOFFDYMSBSZ-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 27
- 239000004411 aluminium Substances 0.000 claims abstract description 19
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000011777 magnesium Substances 0.000 claims abstract description 19
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 17
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000003032 molecular docking Methods 0.000 claims abstract description 10
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 6
- 239000007769 metal material Substances 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 229910003023 Mg-Al Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
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
-
- 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
- B23K20/129—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 specially adapted for particular articles or workpieces
-
- 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
- B23K20/16—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating with interposition of special material to facilitate connection of the parts, e.g. material for absorbing or producing gas
-
- 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
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
- B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
- B23K20/2333—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer one layer being aluminium, magnesium or beryllium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
A kind of aluminium-magnesium dissimilar metal thin plate interconnection method and special-purpose section structure, it is characterised in that: I-shaped profile is squeezed into using high-strength steel or titanium alloy, processes the symmetrical circular through hole convenient for riveting in the upper and lower two sides of profile.It will be respectively put into the gap of I-shaped profile two sides with a thickness of the aluminium sheet of 1-5mm and magnesium plate, it will be squeezed into through-hole with I-shaped profile material of the same race and with the rivet of helicitic texture by friction stir spot welding mode, form the self-enclosed structure of metallurgical bonding.Load is transmitted by I-shaped profile, realizes high-intensitive docking mode connection.It may be selected to smear metal adhesion agent before riveting on the inside of I-shaped profile to enhance connection effect.
Description
Technical field:
The present invention relates to metal material, a kind of aluminium-magnesium dissimilar metal thin plate interconnection method and special-purpose section are specifically provided
Structure, the docking mode connection of aluminium, magnesium dissimilar metal sheet suitable for thickness 1-5mm.
Background technique:
Aluminium alloy and magnesium alloy are industrial widely used two kinds of light alloy materials, in automobile and aerospace etc.
Field is concerned.With the development that deepens continuously that two kinds of light metal materials are applied, inevitably involve between the two
Connectivity problem.
Dissimilar metal connection is to fabricate one of the key technology of composite construction, is widely used in equipment manufacturing field,
But the welding of dissimilar metal it is more complicated compared with same metal with it is difficult.On the one hand, interaction mechanism between different metal material
Complexity necessarily leads to the difficulty on welding process metallurgy；On the other hand, the difference of physical property can bring connection especially to weld again
Connect technologic obstacle.Therefore, although dissimilar metal interconnection technique demand is big, its Joining Technology is more compared to same metal
It is complicated and difficult.
Welding is most common metal material connection method, including fusion welding and Solid-State Welding, can be used for docking, overlap and point
The forms such as weldering.
At present the fusing welding technology for the connection of magnesium-aluminium dissimilar metal include argon tungsten-arc welding, active pole gas shielded arc welding,
The techniques such as electron beam welding, Laser Welding, laser+electric arc combined welding.But research find, when using traditional fusion welding method into
When welding between row magnesium, aluminium dissimilar metal, fire check is easily generated within a fitting, stomata, is mingled with, alloying element scaling loss and weldering
The problems such as stitching area's softening, interface especially within a fitting easily forms a large amount of Mg-Al system weld metal zone brittle intermetallic thing phase,
The severe exacerbation mechanical property of connector.
When using Solid-phase welding method, if agitating friction welds, although welding temperature is greatly reduced than fusion welding, at interface
Region still has continuous intermetallic compound.Agitating friction solder joint is the point to grow up on the basis of agitating friction wire bonding
Welding technology, friction stir spot welding mainly uses non-consumable formula soldering appliance (being made of the shaft shoulder and mixing needle) at present, welds
Journey is made of the insertion of soldering appliance, pressure maintaining, extraction three phases, passes through the flowing of mixing needle adjacent material, material is realized in mixing
The metallurgical bonding of material.Postwelding can due to mixing needle extraction and leave a keyhole.Currently, being rubbed using the stirring with adding layers
The dissimilar metal extent of reaction can be reduced by wiping spot-welding technology, and strength of joint makes moderate progress, but still in conceptual phase.
The explosion weldering time is short, and compound generation can be effectively suppressed, but is only limitted to the multi-layer board welding of large area.
Riveting is a kind of effective dissimilar material welding method, and the smooth rivet high speed impact in surface is entered upper and lower two pieces
Plate is realized by rivet value and is connected, but this method is only limitted to the connection of overlapping mode.
Splicing is also widely used in dissimilar material joining, but common intensity is lower, and application range is restricted, generally can be with
Other welding methods are applied in combination.
Docking is a kind of using extremely wide connection type, but as seen from the above analysis, there is presently no a kind of ideals
Achievable magnesium-aluminium dissimilar metal docking method.The application proposes a kind of profile structure of aluminium-magnesium dissimilar metal thin plate docking
And application method is, it can be achieved that the high-intensitive of the two is docked, it is reason to believe that the technology, which has, is widely applied the market demand.
Summary of the invention:
The purpose of the present invention is to provide a kind of aluminium-magnesium dissimilar metal thin plate interconnection method and special-purpose section structures, are applicable in
In the aluminium-magnesium dissimilar metal thin plate docking mode connection for realizing thickness 1-5mm.
The present invention provides a kind of aluminium-magnesium dissimilar metal thin plate interconnection methods, it is characterised in that: is added using upper and lower two sides
Work has the steel of symmetrical circular through hole or titanium alloy I-shaped profile to be riveted, and aluminium sheet and magnesium plate are respectively put into " work " word
It, will be with I-shaped profile material of the same race and with screw thread by friction stir spot welding mode in shape profile arranged on left and right sides gap
The rivet of structure is squeezed into circular through hole, and the self-enclosed structure of metallurgical bonding is formed, and transmits load by I-shaped profile, real
Existing high-intensitive connection.
As a preferred technical scheme: the I-shaped profile wall thickness is 0.5-2mm, between upper and lower surfaces away from
From the thickness for being equal to sheet metal to be welded, the aperture of the circular through hole is 2-5mm.The aluminium-magnesium sheet metal with a thickness of
1-5mm.Used rivet diameter is 2-5mm, and length is equal with I-shaped profile thickness.Riveting process is friction stir spot
Mode, 1000-3500 revs/min of revolving speed, insertion speed 10-60mm/min.It may be selected before riveting on the inside of I-shaped profile
Metal adhesion agent is smeared to enhance connection effect.
Specific docking operation are as follows: the I-shaped high-strength steel or titanium alloy profile of wall thickness 0.5-2mm are fixed on pad first
On plate, then the aluminium sheet of thickness 1-5mm and magnesium plate are respectively put into two side clearance of I-shaped profile and fixed, in 1000-
It, will be with " work " word using friction stir spot welding mode under 3500 revs/min of revolving speed and under 10-60mm/min insertion speed
The rivet of shape profile material of the same race and the diameter 2-5mm with helicitic texture are squeezed into circular hole, are formed enclosed construction, are realized high-strength
Degree connection.Metal adhesion agent can be selected to smear before riveting on the inside of I-shaped profile as needed to enhance connection effect.
The present invention also provides the special-purpose section structures of the interconnection method, it is characterised in that: the profile structure is to adopt
The I-shaped profile being squeezed into steel (preferably high-strength steel) or titanium alloy, wall thickness 0.5-2mm, the upper and lower table of the profile
Face is equipped with the circular through hole that symmetrical aperture is 2-5mm, and the distance between upper and lower surfaces are equal to the thickness of sheet metal to be welded
Degree.
It is at low cost, be easy to the invention proposes a kind of aluminium-magnesium dissimilar metal thin plate interconnection method and special-purpose section structure
Operation, bonding strength are high, it is reason to believe that this new process will have wide prospects for commercial application.
Detailed description of the invention
Fig. 1 is the rivet with helicitic texture by I-shaped profile and homogeneity, passes through friction stir spot welding mode
Realize the schematic diagram of aluminium-magnesium dissimilar metal thin plate docking, wherein 1, for the cross-sectional view of I-shaped profile, 2, be
The floor map of I-shaped profile, 3, be circular through hole, 4, be aluminium alloy sheet, 5, be magnesium alloy sheet.
Specific embodiment:
Embodiment 1
It uses wall thickness for the I-shaped steel section of 1mm, " work " word will be respectively put into a thickness of the aluminium sheet of 2mm and magnesium plate
It is fixed in gap at left and right sides of shape profile, under 1000 revs/min of revolving speed and 60mm/min insertion speed, it will have
The steel rivet of the diameter 3mm of screw thread is squeezed into the symmetrically arranged circular hole of I-shaped profile upper and lower surface, and metallurgical bonding is formed
Self-enclosed structure, realize high-intensitive connection.
Comparative example 1
It uses wall thickness for the I-shaped steel section of 1mm, " work " word will be respectively put into a thickness of the aluminium sheet of 2mm and magnesium plate
It is fixed in gap at left and right sides of shape profile, it, will be without spiral shell under 1000 revs/min of revolving speed and 60mm/min insertion speed
The steel rivet of the diameter 3mm of line is squeezed into the symmetrically arranged circular hole of I-shaped profile upper and lower surface, unreal due to non-threaded
Now connect.
Embodiment 2
Use wall thickness for the I-shaped titanium alloy matter profile of 2mm, the preceding coated with metal glue on the inside of I-shaped profile of weldering
Agent is tied, then will be respectively put into the gap at left and right sides of I-shaped profile and fix with a thickness of the aluminium sheet of 5mm and magnesium plate,
Under 3000 revs/min of revolving speed and under 10mm/min insertion speed, the TITAIUM ALLOY RIVETS of screwed diameter 5mm is squeezed
Enter in circular hole, form the self-enclosed structure of metallurgical bonding, realizes high-intensitive connection.
Comparative example 2
Use wall thickness for the I-shaped titanium alloy matter profile of 2mm, the preceding coated with metal glue on the inside of I-shaped profile of weldering
Agent is tied, however it is fixed by being respectively put into the gap at left and right sides of I-shaped profile with a thickness of the aluminium sheet of 5mm and magnesium plate,
Under 3000 revs/min of revolving speed and under 10mm/min insertion speed, the steel rivet of screwed diameter 5mm is squeezed into
In circular hole, due to steel rivet and titanium alloy profile can not soldering, connection is not implemented.
Embodiment 3
It uses wall thickness for the I-shaped steel section of 2mm, " work " word will be respectively put into a thickness of the aluminium sheet of 4mm and magnesium plate
It is fixed in gap at left and right sides of shape profile, under 2500 revs/min of revolving speed and under 30mm/min insertion speed, by band
The steel rivet of threaded diameter 4mm is squeezed into circular hole, and the self-enclosed structure of metallurgical bonding is formed, and realizes high-intensitive connection.
Embodiment 4
Use wall thickness for the I-shaped steel section of 2mm, the preceding coated with metal cementing agent on the inside of I-shaped profile of weldering,
However will be respectively put into a thickness of the aluminium sheet of 5mm and magnesium plate it is fixed in the gap at left and right sides of I-shaped profile, 2500 turns/
Under the revolving speed of minute and under 20mm/min insertion speed, the steel rivet of screwed diameter 5mm is squeezed into circular hole,
The self-enclosed structure of metallurgical bonding is formed, realizes high-intensitive connection.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of aluminium-magnesium dissimilar metal thin plate interconnection method, which is characterized in that realize aluminium-magnesium dissimilar metal using clinching method
The docking of thin plate, detailed process are as follows: I-shaped profile is squeezed into using steel or titanium alloy, is added in the profile upper and lower surfaces
Work goes out the symmetrical circular through hole for being convenient for riveting, and aluminium sheet and magnesium plate are respectively put into I-shaped profile arranged on left and right sides gap, leads to
Crossing friction stir spot welding mode will squeeze into circular through hole with I-shaped profile material of the same race and with the rivet of helicitic texture,
Form the self-enclosed structure of metallurgical bonding.
2. according to aluminium described in claim 1-magnesium dissimilar metal thin plate interconnection method, it is characterised in that: the I-shaped profile
Wall thickness is 0.5-2mm.
3. according to aluminium described in claim 1-magnesium dissimilar metal thin plate interconnection method, it is characterised in that: aluminium-magnesium sheet metal thickness
Degree is 1-5mm.
4. according to aluminium described in claim 1-magnesium dissimilar metal thin plate interconnection method, it is characterised in that: the I-shaped profile
The distance between upper and lower surfaces are equal to the thickness of sheet metal to be welded.
5. according to aluminium described in claim 1-magnesium dissimilar metal thin plate interconnection method, it is characterised in that: the hole of the circular through hole
Diameter is 2-5mm.
6. according to aluminium described in claim 1-magnesium dissimilar metal thin plate interconnection method, it is characterised in that: used rivet diameter
For 2-5mm, length is equal with I-shaped profile thickness.
7. according to aluminium described in claim 1-magnesium dissimilar metal thin plate interconnection method, it is characterised in that: riveting process is that stirring rubs
Wiping spot welding mode, 1000-3500 revs/min of revolving speed, insertion speed 10-60mm/min.
8. according to aluminium described in claim 1-magnesium dissimilar metal thin plate interconnection method, it is characterised in that: in I-shaped before riveting
Metal adhesion agent is smeared on the inside of profile.
9. a kind of interconnection method special-purpose section structure as described in claim 1, it is characterised in that: the profile structure is using steel
The I-shaped profile that material or titanium alloy are squeezed into, wall thickness 0.5-2mm, the profile upper and lower surfaces are equipped with symmetrical aperture
For the circular through hole of 2-5mm, and the distance between upper and lower surfaces are equal to the thickness of sheet metal to be welded.
10. according to interconnection method special-purpose section structure described in claim 9, it is characterised in that: used rivet be and " work "
Font profile material of the same race, and have helicitic texture.
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| CN201611091484.0A CN106583911B (en) | 2016-12-01 | 2016-12-01 | A kind of aluminium-magnesium dissimilar metal thin plate interconnection method and special-purpose section structure |
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| CN201611091484.0A CN106583911B (en) | 2016-12-01 | 2016-12-01 | A kind of aluminium-magnesium dissimilar metal thin plate interconnection method and special-purpose section structure |
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| US6769595B2 (en) * | 2000-12-20 | 2004-08-03 | Alcoa Inc. | Friction plunge riveting |
| US6988651B2 (en) * | 2004-02-17 | 2006-01-24 | General Motors Corporation | Friction stir rivet drive system and stir riveting methods |
| JP2007301578A (en) * | 2006-05-09 | 2007-11-22 | Hino Motors Ltd | Method for joining materials |
| CN101468421A (en) * | 2007-12-26 | 2009-07-01 | 中国科学院金属研究所 | Agitating friction riveting device and riveting method |
| CN101670482A (en) * | 2009-09-29 | 2010-03-17 | 西安交通大学 | Embedded stirring friction spot welding method |
| CN102990221A (en) * | 2012-12-04 | 2013-03-27 | 中国科学院金属研究所 | Embedded metal material connecting method with sealing effect |
| CN103008875A (en) * | 2012-12-28 | 2013-04-03 | 北京理工大学 | Dissimilar metal welding joint and welding method thereof |
| CN103240564B (en) * | 2013-04-26 | 2016-04-13 | 上海交通大学 | Machinery-solid phase composite connecting device and attaching method thereof |
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