CN110076438A - A kind of heterogeneous part connection structure of steel aluminium and connection method - Google Patents
A kind of heterogeneous part connection structure of steel aluminium and connection method Download PDFInfo
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- CN110076438A CN110076438A CN201910357898.0A CN201910357898A CN110076438A CN 110076438 A CN110076438 A CN 110076438A CN 201910357898 A CN201910357898 A CN 201910357898A CN 110076438 A CN110076438 A CN 110076438A
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- steel
- positioning base
- engaging section
- aluminium
- connection structure
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 61
- 239000010959 steel Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 29
- 239000004411 aluminium Substances 0.000 title claims abstract description 28
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 45
- 238000003466 welding Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 17
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- 239000010962 carbon steel Substances 0.000 claims description 6
- 229910018134 Al-Mg Inorganic materials 0.000 claims description 5
- 229910018467 Al—Mg Inorganic materials 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005304 joining Methods 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 229910018464 Al—Mg—Si Inorganic materials 0.000 description 2
- 229910007565 Zn—Cu Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910021365 Al-Mg-Si alloy Inorganic materials 0.000 description 1
- 229910018563 CuAl2 Inorganic materials 0.000 description 1
- 229910017818 Cu—Mg Inorganic materials 0.000 description 1
- 229910019086 Mg-Cu Inorganic materials 0.000 description 1
- 229910019752 Mg2Si Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
- B21J15/04—Riveting hollow rivets mechanically
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Connection Of Plates (AREA)
Abstract
The present invention relates to a kind of heterogeneous part connection structure of steel aluminium and connection methods, belong to the technical field of body lightening material.The heterogeneous part connection structure of steel aluminium of the invention includes aluminium alloy plate, rivet arrangement and steel component, and the material of rivet arrangement is steel；Aperture is provided on aluminium alloy plate, rivet arrangement includes positioning base and engaging section, necking part is provided between positioning base and engaging section, the diameter of necking part is less than the outer diameter of positioning base and engaging section, positioning base is arranged in aperture by squeezing so that engaging section forms mechanical interlocking connections with necking part and aluminium alloy plate, and steel component is connect with positioning base by electric resistance welding.Connection structure and method of the invention directly borrows existing electric resistance welding robot welding system, without carrying out wire body main line transformation without increasing SPR equipment, MIG/CMT welding equipment input cost；The shortcomings that quality of connection is good, effectively prevents conventional aluminum-steel hybrid Joining Technology.
Description
Technical field
The present invention relates to the technical fields of body lightening material, it is more particularly related to which a kind of steel aluminium is heterogeneous
Part connection structure and connection method.
Background technique
It is more and more using new material with the influence of body lightening trend, it will not using common welding technique
It is able to satisfy demand.From the point of view of current research major part vehicle looks forward to applicable cases, it is relatively specific for the connection work of aluminum-steel hybrid vehicle body
Skill has: self-piercing riveting technique (SPR, TOX), hot melt thread tapping (FDS) technique etc..The wherein highest predominantly SPR of frequency of use
Technique type of attachment.
1. SPR technique type of attachment needs to put into SPR welding equipment, and needs to be transformed vehicle body main weldering line, throw
Enter that cost is larger, it is higher greater than 50% vehicle body utilization rate of equipment and installations for aluminum-steel hybrid ratio, and it is small for aluminum-steel hybrid ratio
Utilization rate of equipment and installations is lower when 30%, and investment and output ratio are unbalance, while SPR equipment riveting clamp formula is c-type riveting pincers, part riveting
Contact cannot achieve, and need to use MIG/CMT welding procedure, and increase a part of extra cost；
2. TOX technique bonding strength is lower, reliability is poor, is not suitable for vehicle body connection；
3. heating thread tapping (FDS) process equipment system cost is higher than resistance spot welding, rivet is at high cost, and the operating time is long,
A large amount of uses will affect main line beat, and there are larger protrusion in material front and back sides after the completion of technique, and screw sizes are longer, if largely
Using will increase vehicle body be self-possessed, while too long exposed portion also can the design to vehicle body had an impact with manufacture.
Summary of the invention
In order to solve above-mentioned technical problem, the purpose of the present invention is to provide a kind of heterogeneous part connection structures of steel aluminium
And installation method.
The heterogeneous part connection structure of steel aluminium of the invention, including aluminium alloy plate, rivet arrangement and steel component, the rivet knot
The material of structure is steel；Be provided with aperture on the aluminium alloy plate, the rivet arrangement include positioning base and be located at it is described fixed
Engaging section on the pedestal of position, is provided with necking part, the diameter of the necking part between the positioning base and the engaging section
Less than the outer diameter of the positioning base and the engaging section, the outer diameter of the engaging section is greater than the outer diameter of the positioning base；Institute
Positioning base is stated to be arranged in the aperture by squeezing so that the engaging section and the necking part and the aluminium alloy plate shape
At mechanical interlocked connection, and the steel component is connect with the positioning base by electric resistance welding.
Wherein, the periphery of the engaging section is provided with the double wedge continuously arranged, and the double wedge is along the engaging section
Center has the width become narrow gradually outward.
Wherein, the heterogeneous part connection structure of the steel aluminium is auto parts and components structure or body structure.
Wherein, the rivet arrangement is center axially symmetric structure.
Wherein, the aluminium alloy is Al-Mg alloy.
Wherein, the material of the rivet arrangement and steel component is carbon steel or low alloy steel etc..
The second aspect of the present invention further relates to a kind of connection method of heterogeneous part connection structure of steel aluminium.
Connection method of the invention the following steps are included:
(1) link position aperture is waited in aluminium alloy；
(2) rivet arrangement is arranged in position of opening, and applies pressure using riveting equipment upper mold and squeezes rivet arrangement
In to the aluminium alloy plate, the rivet arrangement and the aluminium alloy form mechanical interlock；The material of the rivet arrangement
For steel；
(3) steel component and rivet arrangement positioning are overlapped；
(4) steel component and the rivet arrangement are used into electric resistance welding.
Wherein, the rivet arrangement includes positioning base and the engaging section on the positioning base, described fixed
Necking part is provided between position pedestal and the engaging section, the diameter of the necking part is less than the positioning base and engages with described
The outer diameter in portion, and the positioning base and the aperture are interference fitted.
Wherein, the periphery of the engaging section is provided with the double wedge continuously arranged, and the double wedge is along the engaging section
Center has the width become narrow gradually outward.
Compared with prior art, the heterogeneous part connection structure of steel aluminium of the invention has the advantages that
1. without increasing SPR equipment, MIG/CMT welding equipment input cost；
2. existing electric resistance welding robot welding system is directly borrowed, without carrying out wire body main line transformation；
The shortcomings that 3. quality of connection is good, effectively prevents conventional aluminum-steel hybrid Joining Technology；
4. applicability is extensive, it is suitable for all aluminum-steel hybrid Joining Technologies.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the heterogeneous part connection structure of steel aluminium of the invention.
Fig. 2 is the structural schematic diagram of the rivet arrangement in the heterogeneous part connection structure of steel aluminium.
Fig. 3 is the riveting process schematic diagram of rivet arrangement and aluminium alloy plate.
Fig. 4 is the flow diagram of the heterogeneous part connection method of steel aluminium of the invention.
Specific embodiment
The heterogeneous part connection structure of steel aluminium of the invention and connection method are done further below with reference to specific embodiment
Elaboration, it is more complete, accurate and deep to help those skilled in the art to have inventive concept of the invention, technical solution
Understand.
As shown in Figure 1-3, the heterogeneous part connection structure of the steel aluminium of the present embodiment includes aluminium alloy plate 20, rivet arrangement 30 and steel
Matter part 10, the material of the rivet arrangement 30 are steel；Aperture 21, the rivet arrangement 30 are provided on the aluminium alloy plate 20
Engaging section 31 including positioning base 32 and on the positioning base 32, in the positioning base 32 and the engaging section
Necking part 33 is provided between 31.The diameter of necking part 33 is less than the outer diameter of positioning base 32 and engaging section 31, and engages
The outer diameter in portion 31 is greater than the outer diameter of positioning base 32, and the aperture 21 on positioning base 32 and aluminium alloy plate 20 is interference fitted；Positioning
Pedestal 32 be arranged in aperture 21, and respectively by the upper mold of riveting equipment 1 and lower die 2 be separately positioned on engaging section 31 top and
Then the lower section of aluminium alloy plate 20 applies pressure by the upper mold 1 of riveting equipment, so that engaging section 31 is gradually extruded into aluminium conjunction
Golden plate 20, while but also aluminium alloy is squeezed into around necking part 33, and finally make lower surface and the riveting of positioning base 32
The lower die 2 for connecing equipment is bonded completely, and by squeezing so that the engaging section 31 and the necking part 32 and the aluminium alloy
Plate 20 forms mechanical interlocking connections, and the connection of the final steel component 10 and positioning base 32 is changed between Steel material
Connection can be connected by conventional electric resistance welding, and this can directly borrow the electric resistance welding machine in existing auto production line
People's welding system, without carrying out wire body main line transformation, without increasing SPR equipment, MIG/CMT welding equipment input cost.
In the present invention, the rivet arrangement may be designed as structure substantially symmetrical about its central axis, and in order to riveting operation, the riveted structure has
The essentially identical thickness with aluminium alloy plate 20, in the rivet arrangement 30, the diameter of the positioning base 32 is 10~50mm, and
The outer diameter of the engaging section 31 is 15~75mm, and the rivet arrangement can be used carbon steel or low alloy steel etc., for example, Q235,35,
45, the carbon steel or low alloy steels such as 40CrMo, can meet intensity and locking requires, and material cost is lower.Specifically, described to nibble
The periphery in conjunction portion 31 is provided with the double wedge continuously arranged, and double wedge has the width become narrow gradually along the center of engaging section 31 outward
Degree, to be conducive to make the aluminium alloy being extruded fill up the space between the adjacent double wedge by plastic extrusion when squeezing
Stable mechanical interlock is formed, while the aluminium alloy that part is extruded can be squeezed into the engaging section and the positioning base
Between lock neck around.
In the present invention, the aluminium alloy is Al-Mg alloy for body of a motor car, such as Al-Mg-Si, Al-Mg-Cu,
Al-Mg-Zn, Al-Mg-Zn-Cu alloy etc., the present invention is not limited thereto certainly.Usual body of a motor car be with material amount and weight most
The design of big component, body of a motor car has great importance for the light-weight design of automobile.Currently used for vehicle body plate
Aluminium alloy mainly have 2XXX line aluminium alloy, 5XXX line aluminium alloy and 6XXX line aluminium alloy.2XXX alloy belongs to Al-Cu-Mg system,
It is a kind of aluminium alloy that heat treatment can be strengthened, with excellent forgeability, higher intensity and good welding performance, strengthens
It is mutually CuMgAl2And CuAl2.Mg is main alloying element in 5XXX line aluminium alloy, is solid-solution in aluminum substrate, and it is strong to form solid solution
Change effect.Main alloying element is Mg and Si in 6XXX aluminium alloy, and forms Mg2Si phase, and Al-Mg-Si alloy has higher
Intensity, preferable plasticity and excellent corrosion resistance.It is above-mentioned not only to have light weight, intensity height and good impact resistance etc. special
Point, and there is good extrusion molding performance, thus be easy to form mechanical interlock structure by squeezing.As steel component
Material, Q235,20,45,40Mn, 65Mn, 08F etc. can choose according to the purposes of part, in addition for key position or
To the higher occasion of anti-corrosion class requirement and application, low-alloy steel and stainless steel can also be used, using low-alloy steel or not
Rust steel also not appreciably affects riveting process, while in the present invention, since rivet arrangement is embedded in aluminium alloy plate, in resistance spot welding
Heat dissipation is more advantageous to when operation, so as to improve the quality of spot welding.
Fig. 4 shows the connection method of the heterogeneous part connection structure of steel aluminium of the invention, mainly includes aperture, riveting, determines
Position and four processing steps of resistance spot welding.Firstly, waiting for that link position carries out aperture in aluminium alloy plate；Then, by above-mentioned rivet knot
Structure method as shown in Figure 3 is riveted to the aluminium alloy plate of pre-drilled cavity；Then, the aluminium alloy plate that riveting finishes is determined with steel component
Position overlap joint；Finally, position to be welded is converted into ordinary carbon steel connection by aluminum-steel hybrid connection, conventional, electric-resistance weldering can be directly carried out
Welding.In the present invention, the aluminium alloy is the Al-Mg alloy for body of a motor car, such as Al-Mg-Si, Al-Mg-
Cu, Al-Mg-Zn, Al-Mg-Zn-Cu alloy etc., and the aluminium alloy can be the aluminium alloy by solution treatment (at T4 heat
Reason) or solid solution+ageing treatment aluminium alloy (T6 heat treatment) by the aluminium alloy of T4 and T6 heat treatment passes through experimental verification
Mechanical interlock structure is capable of forming using above-mentioned riveting process, is not in separation, crackle etc. by pressurized operation appropriate
Defect, and the fatigue life of mechanical interlock structure is significantly better than the fatigue life of resistance spot welding weld, shows this hair
Bright connection method has good reliability, can be widely applied for the aluminum-steel hybrid connection of body of a motor car or part etc..
For the ordinary skill in the art, specific embodiment is only exemplarily described the present invention,
Obviously the present invention specific implementation is not subject to the restrictions described above, as long as use the inventive concept and technical scheme of the present invention into
The improvement of capable various unsubstantialities, or not improved the conception and technical scheme of the invention are directly applied to other occasions
, it is within the scope of the present invention.
Claims (10)
1. a kind of heterogeneous part connection structure of steel aluminium, it is characterised in that: described including aluminium alloy plate, rivet arrangement and steel component
The material of rivet arrangement is steel；Aperture is provided on the aluminium alloy plate, the rivet arrangement includes positioning base and is located at
Engaging section on the positioning base is provided with necking part, the necking part between the positioning base and the engaging section
Diameter be less than the outer diameter of the positioning base and the engaging section, the outer diameter of the engaging section be greater than the positioning base outside
Diameter；The positioning base is arranged in the aperture by squeezing so that the engaging section and the necking part and the aluminium alloy
Plate forms mechanical interlocking connections, and the steel component is connect with the positioning base by electric resistance welding.
2. the heterogeneous part connection structure of steel aluminium according to claim 1, it is characterised in that: the heterogeneous part connection structure of steel aluminium
For auto parts and components structure or body structure.
3. the heterogeneous part connection structure of steel aluminium according to claim 1, it is characterised in that: the periphery of the engaging section is provided with
The double wedge continuously arranged, the double wedge have the width become narrow gradually along the center of the engaging section outward.
4. the heterogeneous part connection structure of steel aluminium according to claim 1, it is characterised in that: the rivet arrangement is center axis pair
Claim structure.
5. the heterogeneous part connection structure of steel aluminium according to claim 1, it is characterised in that: the aluminium alloy is Al-Mg alloy.
6. the heterogeneous part connection structure of steel aluminium according to claim 1, it is characterised in that: the rivet arrangement and steel component
Material be carbon steel or low alloy steel.
7. a kind of connection method of the heterogeneous part connection structure of steel aluminium, it is characterised in that the following steps are included:
(1) link position aperture is waited in aluminium alloy；
(2) rivet arrangement is arranged in position of opening, and applies pressure using riveting equipment upper mold and squeezes rivet arrangement to institute
It states in aluminium alloy plate, the rivet arrangement and the aluminium alloy form mechanical interlock；The material of the rivet arrangement is steel；
(3) steel component and rivet arrangement positioning are overlapped；
(4) steel component and the rivet arrangement are used into electric resistance welding.
8. the connection method of the heterogeneous part connection structure of steel aluminium according to claim 7, it is characterised in that: the rivet arrangement
Engaging section including positioning base and on the positioning base is arranged between the positioning base and the engaging section
There is necking part, the diameter of the necking part is less than the outer diameter of the positioning base and the engaging section, and the positioning base
It is interference fitted with the aperture.
9. the connection method of the heterogeneous part connection structure of steel aluminium according to claim 8, it is characterised in that: the engaging section
Periphery is provided with the double wedge continuously arranged, and the double wedge has the width become narrow gradually along the center of the engaging section outward
Degree.
10. the connection method of the heterogeneous part connection structure of steel aluminium according to claim 7, it is characterised in that: the aluminium alloy
For Al-Mg alloy, the material of the rivet arrangement and steel component is carbon steel or low alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910357898.0A CN110076438A (en) | 2019-04-30 | 2019-04-30 | A kind of heterogeneous part connection structure of steel aluminium and connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910357898.0A CN110076438A (en) | 2019-04-30 | 2019-04-30 | A kind of heterogeneous part connection structure of steel aluminium and connection method |
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| CN110076438A true CN110076438A (en) | 2019-08-02 |
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| CN201910357898.0A Pending CN110076438A (en) | 2019-04-30 | 2019-04-30 | A kind of heterogeneous part connection structure of steel aluminium and connection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115464288A (en) * | 2022-10-13 | 2022-12-13 | 长沙学院 | Resistance heat-assisted hybrid welding system based on heterogeneous metal |
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| DE102012104364A1 (en) * | 2012-05-21 | 2013-11-21 | Benteler Automobiltechnik Gmbh | Rivet, useful e.g. for coupling two components, comprises head portion, base extending over its height, radially encircling groove, undercut, and external circumferential rib, where head portion has round head-rivet portion |
| JP2015062916A (en) * | 2013-09-24 | 2015-04-09 | 株式会社神戸製鋼所 | Method for manufacturing dissimilar material joint body, and dissimilar material joint body |
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| CN106194950A (en) * | 2015-05-09 | 2016-12-07 | 黄石鑫华轮毂有限公司 | A kind of aluminium alloy wheel hub of vehicle decoration rivet |
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| CN210209026U (en) * | 2019-04-30 | 2020-03-31 | 阿尔特汽车技术股份有限公司 | Steel-aluminum heterogeneous piece connecting structure |
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2019
- 2019-04-30 CN CN201910357898.0A patent/CN110076438A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590598A (en) * | 2008-05-28 | 2009-12-02 | 株式会社神户制钢所 | The joint method of the foreign material of steel and light-alloy material |
| JP2010207898A (en) * | 2009-03-11 | 2010-09-24 | Kobe Steel Ltd | Rivet for joining different material, method for joining different material, and joined body of different material |
| DE102012104364A1 (en) * | 2012-05-21 | 2013-11-21 | Benteler Automobiltechnik Gmbh | Rivet, useful e.g. for coupling two components, comprises head portion, base extending over its height, radially encircling groove, undercut, and external circumferential rib, where head portion has round head-rivet portion |
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Application publication date: 20190802 |
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