CN107262910A - A kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint - Google Patents
A kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint Download PDFInfo
- Publication number
- CN107262910A CN107262910A CN201710706696.3A CN201710706696A CN107262910A CN 107262910 A CN107262910 A CN 107262910A CN 201710706696 A CN201710706696 A CN 201710706696A CN 107262910 A CN107262910 A CN 107262910A
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- China
- Prior art keywords
- spot welding
- titanium
- aluminium
- ultrasonic spot
- dissimilar metal
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- 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
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic 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
- B23K20/24—Preliminary treatment
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/42—Electroplating: Baths therefor from solutions of light metals
- C25D3/44—Aluminium
-
- 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
-
- 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
- B23K2103/14—Titanium or alloys thereof
Abstract
A kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint, belongs to welding technology field.Technical essential is：Step one：Intermediate layer is added between aluminium/titanium dissimilar metal faying surface；Step 2：It is placed on ultrasonic spot welding machine bottom anvil, is 500ms~2000ms in weld interval, pressure is 0.1MPa~0.5MPa, amplitude is carries out ultrasonic spot welding under the conditions of 20 μm~50 μm of technological parameter.The present invention is solved in ultra-sonic welded because titanium alloy plasticization temperature is high, intensity it is big caused by the problem of be difficult to abundant plastic deformation and atoms permeating in termination process, add intermediate layer so as to the problem of obtaining preferable mechanical bond and metallurgical binding.
Description
Technical field
The present invention relates to a kind of method for improving dissimilar metal ultrasonic spot welding strength of joint, and in particular to and one kind raising aluminium/
The method of titanium dissimilar metal ultrasonic spot welding strength of joint, belongs to welding technology field.
Background technology
In the field such as Aeronautics and Astronautics and automobile, for mitigating weight, reduce cost and Special use performance in terms of
Consider, aluminium alloy and titanium alloy the advantages of its high specific strength, high-fracture toughness largely to be used.In aluminium/titanium dissimilar metal
Among the design of composite construction, the connection for realizing both is crucial.It is difficult to meet sealing structure using mechanical means connection aluminium/titanium
The requirement of property and performance, widely used welding method realizes the connection of aluminium/titanium in actual production.However, aluminium and titanium
Physics, chemical property differ greatly, cause its weldability poor, the method such as conventional fusion welding, soldering, molten soldering is difficult to reality
The high-quality and efficient connection of existing aluminium/titanium, so as to limit the further application of aluminium/titanium dissimilar metal composite construction, therefore compels to be essential
New interconnection technique is developed, promotes aluminium/titanium dissimilar metal lightweight composite construction to move towards practical, this is difficult for other xenogenesis
The connectivity problem of weldering metal also has important reference value.
Ultra-sonic welded is to vibrate collective effect by putting on the high frequency ultrasound of static pressure on workpiece and sound system,
Energy produced by elastic vibration is transformed into the frictional work and heat energy of the plasticity stream of metal material, weld interface, and weldering
The oxide-film and surface attachments in border face can be broken and disperse, and cause dislocation aggregation, occur a large amount of plastic deformations, so that
The metallic atom of weld interface is activated, realize the solid diffusivity between metal weldment.Relative to other welding methods, ultrasonic bond
Connect power output low, weld interval is short, be conducive to suppressing the formation of intermetallic compound, have the disadvantage for high-strength alloy such as titanium
It is difficult to abundant plastic deformation and atoms permeating in alloy, ultrasonic welding process, so as to obtain preferable mechanical bond and metallurgical junction
Close.
The content of the invention
The brief overview on the present invention is given below, to provide on the basic of certain aspects of the invention
Understand.It should be appreciated that this general introduction is not the exhaustive general introduction on the present invention.It is not intended to determine the pass of the present invention
Key or pith, nor is it intended to limit the scope of the present invention.Its purpose only provides some concepts in simplified form,
In this, as the preamble in greater detail discussed later.
In consideration of it, it is an object of the invention to provide a kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint,
Solve in ultra-sonic welded because titanium alloy plasticization temperature is high, intensity it is big caused by be difficult to abundant plastic deformation and original in termination process
Son diffusion, so that the problem of being difficult to obtain preferable mechanical bond and metallurgical binding.
The invention provides a kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint, it is specially：
Step one：Intermediate layer is added between aluminium/titanium dissimilar metal faying surface；
Step 2：Be placed on ultrasonic spot welding machine bottom anvil, weld interval be 500ms~2000ms, pressure be 0.1MPa~
0.5MPa, amplitude is carries out ultrasonic spot welding under the conditions of 20 μm~50 μm of technological parameter.
Further：In the step one, intermediate layer is electroplating aluminum coating, pure aluminum metal powder or fine aluminium paillon foil；The electricity
Aluminium coated is plated on titanium alloy sheet；The pure aluminum metal powder is placed in titanium alloy plate overlapping regions surface；The pure aluminum foil
Piece is placed in titanium alloy sheet and aluminium alloy plate overlapping regions.
Further：The electroplating aluminum coating be plated on the electroplate liquid weight/mass percentage composition that is used on titanium alloy sheet constitute for
N-butyl ether 88%, aluminum trichloride (anhydrous) 4%, Tributyl aluminate 8%.
Further：Electric current is 2~5A/dm during plating2, electroplating time 1~2 hour.
Further：The pure aluminum metal powder size is not more than 10 μm.
Further：The fine aluminium foil thickness is less than 0.2mm.
Further：In the step 2, weld interval is 600ms~1400ms, and pressure is 0.2MPa~0.4MPa, is shaken
Width is 27 μm~37 μm.
Beneficial effect：
Compared with existing aluminium/titanium dissimilar metal directly carries out ultrasonic spot welding, the present invention improves the ultrasonic point of aluminium/titanium dissimilar metal
The method of plumb joint intensity is by adding fine aluminium interlayer in the middle of titanium alloy and aluminum alloy lapped region so that weld interface is
Aluminium/aluminium same metal, had both been solved by titanium alloy plasticization temperature height, the big caused weld interface mechanical bond of intensity, metallurgical junction
Close it is insufficient the problem of, the intermetallic compound of possible generation during aluminium/titanium xenogenesis connecting welding is avoided that again.This hair
The intensity of the aluminium of bright acquisition/titanium dissimilar metal ultrasonic spot welding lap joint using aluminium/titanium dissimilar metal with directly carrying out ultrasonic point
Weldering is significantly improved compared to the intensity of the welding point obtained.The present invention can also obtain the weld seam of high-quality with less heat input,
Production efficiency is improved, and technique is simple, it is easy to accomplish, it is with low cost, effectively raise aluminium/titanium dissimilar metal ultrasonic spot welding
Strength of joint.
Brief description of the drawings
Fig. 1 is the lap joint schematic diagram in aluminium of the present invention/titanium dissimilar metal ultrasonic spot welding plus intermediate layer.
Embodiment
The one exemplary embodiment of the present invention is described hereinafter in connection with accompanying drawing.For clarity and conciseness,
All features of actual embodiment are not described in the description.It should be understood, however, that developing any this actual implementation
Many decisions specific to embodiment must be made during example, to realize the objectives of developer, for example, symbol
Those restrictive conditions related to system and business are closed, and these restrictive conditions may have with the difference of embodiment
Changed.In addition, it also should be appreciated that, although development is likely to be extremely complex and time-consuming, but to having benefited from the present invention
For those skilled in the art of disclosure, this development is only routine task.
Herein, in addition it is also necessary to which explanation is a bit, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings
It illustrate only and according to the closely related apparatus structure of the solution of the present invention and/or process step, and eliminate and the present invention
The little other details of relation.
Embodiment 1：The present embodiment through the following steps that realize：
First, electroplate liquid is prepared, it is constituted following (weight/mass percentage composition)：N-butyl ether：88%；Aluminum trichloride (anhydrous)：4%；
Tributyl aluminate：8%, poured into after each component is uniformly mixed in magnetic stirring apparatus；
2nd, electroplate, using titanium alloy sheet as negative electrode, using aluminium sheet as anode, both are powered, cathode current be 2~
5A/dm2Under the conditions of carry out plating one hour；The titanium alloy sheet of aluminizing of acquisition is placed in upper strata, aluminium alloy plate is placed in lower floor, both
Overlap joint, is put on ultrasonic spot welding machine bottom anvil, is 600ms~1400ms in weld interval, and pressure is 0.2MPa~0.4MPa, amplitude
To be welded under 27 μm~37 μm of technological parameters.
Embodiment 2：The present embodiment through the following steps that realize：
The pure aluminium powder that the first, granularity is not more than to 10 μm is uniformly mixed with ethanol, and mass ratio is 1:4；It will be obtained with brush
Solution be applied to titanium alloy plate overlapping regions surface, dry naturally；
2nd, the titanium alloy sheet for scribbling pure aluminium powder of acquisition is placed in upper strata, aluminium alloy plate is placed in lower floor, both overlap,
It is put on ultrasonic spot welding machine bottom anvil, is 600ms~1400ms in weld interval, pressure is 0.2MPa~0.4MPa, and amplitude is 27 μ
Welded under the technological parameter of m~37 μm.
Embodiment 3：The present embodiment through the following steps that realize：
First, the fine aluminium paillon foil that thickness is less than 0.2mm is placed in titanium alloy sheet and aluminium alloy plate overlapping regions, interlayer size is filled
Full overlapping regions, to ensure the continuity and validity of welding process；
2nd, be put on ultrasonic spot welding machine bottom anvil, weld interval be 600ms~1400ms, pressure be 0.2MPa~
0.4MPa, amplitude is is welded under 27 μm~37 μm of technological parameter.
Although disclosed embodiment is as above, its content is only to facilitate understand the technical side of the present invention
Case and the embodiment used, are not intended to limit the present invention.Any those skilled in the art to which this invention pertains, not
On the premise of departing from disclosed core technology scheme, any modification can be made in the form and details of implementation with becoming
Change, but the protection domain that the present invention is limited, the scope that must be still limited by appended claims are defined.
Claims (8)
1. a kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint, it is characterised in that specific method is：
Step one：Intermediate layer is added between aluminium/titanium dissimilar metal faying surface；
Step 2：Be placed on ultrasonic spot welding machine bottom anvil, weld interval be 500ms~2000ms, pressure be 0.1MPa~
0.5MPa, amplitude is carries out ultrasonic spot welding under the conditions of 20 μm~50 μm of technological parameter.
2. a kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint according to claim 1, its feature exists
In in the step one, intermediate layer is electroplating aluminum coating, pure aluminum metal powder or fine aluminium paillon foil；The electroplating aluminum coating is plated on titanium
In alloy sheets；The pure aluminum metal powder is placed in titanium alloy plate overlapping regions surface；The fine aluminium paillon foil is placed in titanium alloy sheet
With aluminium alloy plate overlapping regions.
3. a kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint according to claim 2, its feature exists
In the electroplating aluminum coating is plated on the electroplate liquid weight/mass percentage composition used on titanium alloy sheet and constituted as n-butyl ether 88%, nothing
Water alchlor 4%, Tributyl aluminate 8%.
4. a kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint according to claim 3, its feature exists
In will pour into electroplate liquid is prepared in magnetic stirring apparatus after n-butyl ether, aluminum trichloride (anhydrous), Tributyl aluminate uniformly mixing.
5. a kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint according to claim 3, its feature exists
In electric current is 2~5A/dm during plating2, electroplating time 1~2 hour.
6. a kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint according to claim 2, its feature exists
In the pure aluminum metal powder size is not more than 10 μm.
7. a kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint according to claim 2, its feature exists
In the fine aluminium foil thickness is less than 0.2mm.
8. a kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint according to claim 1, its feature exists
In in the step 2, weld interval is 600ms~1400ms, and pressure is 0.2MPa~0.4MPa, and amplitude is 27 μm~37 μ
m。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706696.3A CN107262910A (en) | 2017-08-17 | 2017-08-17 | A kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706696.3A CN107262910A (en) | 2017-08-17 | 2017-08-17 | A kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint |
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| Publication Number | Publication Date |
|---|---|
| CN107262910A true CN107262910A (en) | 2017-10-20 |
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| CN201710706696.3A Pending CN107262910A (en) | 2017-08-17 | 2017-08-17 | A kind of method for improving aluminium/titanium dissimilar metal ultrasonic spot welding strength of joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115971704A (en) * | 2022-12-15 | 2023-04-18 | 兰州理工大学 | Aluminum/titanium composite board and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60203379A (en) * | 1984-03-27 | 1985-10-14 | Res Dev Corp Of Japan | Joining method of amorphous alloy |
| JPS61103685A (en) * | 1984-10-26 | 1986-05-22 | Hitachi Ltd | Method for diffused junction |
| US5383985A (en) * | 1992-06-05 | 1995-01-24 | Gec Alsthom Electromecanique Sa | Method of installing an insert serving as a protective cladding on a part made of martensitic steel or of titanium-based alloy |
| CN1156767A (en) * | 1996-02-05 | 1997-08-13 | 吉首大学 | Aluminium electroplating bath |
| CN1939645A (en) * | 2005-09-13 | 2007-04-04 | 普兰西欧洲股份公司 | Composite material and technique for producing same |
| CN104400204A (en) * | 2014-09-16 | 2015-03-11 | 江苏天诚车饰科技有限公司 | Ultrasonic welding method of aluminum/titanium dissimilar alloys |
-
2017
- 2017-08-17 CN CN201710706696.3A patent/CN107262910A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60203379A (en) * | 1984-03-27 | 1985-10-14 | Res Dev Corp Of Japan | Joining method of amorphous alloy |
| JPS61103685A (en) * | 1984-10-26 | 1986-05-22 | Hitachi Ltd | Method for diffused junction |
| US5383985A (en) * | 1992-06-05 | 1995-01-24 | Gec Alsthom Electromecanique Sa | Method of installing an insert serving as a protective cladding on a part made of martensitic steel or of titanium-based alloy |
| CN1156767A (en) * | 1996-02-05 | 1997-08-13 | 吉首大学 | Aluminium electroplating bath |
| CN1939645A (en) * | 2005-09-13 | 2007-04-04 | 普兰西欧洲股份公司 | Composite material and technique for producing same |
| CN104400204A (en) * | 2014-09-16 | 2015-03-11 | 江苏天诚车饰科技有限公司 | Ultrasonic welding method of aluminum/titanium dissimilar alloys |
Non-Patent Citations (1)
| Title |
|---|
| H. M. ZHANG: "Effect of interlayer on microstructure and mechanical properties of Al–Ti ultrasonic welds", 《SCIENCE AND TECHNOLOGY OF WELDING AND JOINING》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115971704A (en) * | 2022-12-15 | 2023-04-18 | 兰州理工大学 | Aluminum/titanium composite board and preparation method thereof |
| CN115971704B (en) * | 2022-12-15 | 2023-07-14 | 兰州理工大学 | Aluminum/titanium composite board and preparation method thereof |
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Application publication date: 20171020 |