CN104400170A - Aluminum alloy ultrasonic semi-solid coating brazing method - Google Patents
Aluminum alloy ultrasonic semi-solid coating brazing method Download PDFInfo
- Publication number
- CN104400170A CN104400170A CN201410591200.9A CN201410591200A CN104400170A CN 104400170 A CN104400170 A CN 104400170A CN 201410591200 A CN201410591200 A CN 201410591200A CN 104400170 A CN104400170 A CN 104400170A
- Authority
- CN
- China
- Prior art keywords
- brazing
- ultrasonic
- aluminum alloy
- alloy
- solder
- 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.)
- Pending
Links
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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/06—Soldering, e.g. brazing, or unsoldering making use of vibrations, e.g. supersonic vibrations
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
- B23K1/206—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
Abstract
The invention provides an aluminum alloy ultrasonic semi-solid coating brazing method and belongs to the technical field of welding. The aluminum alloy ultrasonic semi-solid coating brazing method is characterized in that solder needed by the method is Sn-Pb-Zn-Ag-Cu solder, the chemical components of the solder comprise, by weight percentage, 90-92% of Sn-Pb eutectic alloy, 1.5-2% of Ag-Cu eutectic alloy, 6-10% of zinc element and the rest of Bi. The process comprises the following steps of polishing, cleaning, positioning, using a clamp to fix aluminum alloy, performing ultrasonic auxiliary plating, cooling and performing semi-cold pressing brazing. The minimum brazing joint cutting strength of the brazing method is 101MPa. The aluminum alloy ultrasonic semi-solid coating brazing method is particularly suitable for brazing of the large-area aluminum alloy, the technology is simple, and the brazing method can guarantee a good brazing manufacturability and a joint mechanical property and is a simple and practical low-temperature brazing technical scheme for aluminum with a good application prospect.
Description
Technical field
A kind of aluminium alloy of the present invention ultrasonic semisolid coating method for welding, belongs to welding technology field, is specifically related to the technical scheme of a kind of aluminium alloy ultrasonic semisolid coating soldering.
Background technology
Aluminium alloy has lightweight, good corrosion resistance and the characteristic such as heat-conductivity conducting is functional.More and more extensive in the application of the dual-use industrial circles such as Aeronautics and Astronautics, electronics, automobile, building materials.But because aluminum alloy surface easily generates compact oxidation layer, solder is difficult to wetting aluminum alloy surface, so the soldering of aluminium alloy is also confined on indivedual trades mark such as fine aluminium and 6063, the aluminium alloy that a large amount of intensity ranks is higher still cannot carry out soldering.On the other hand, due to product lightweight and demand attractive in appearance, the demand of aluminium alloy being carried out to soldering is more and more urgent, only the soldering of fine aluminium and the rank aluminium alloys such as 6063 can not meet structural strength, rigidity and technical requirement attractive in appearance, and therefore research and development are applicable to the welding method of aluminium alloy brazing is solve one of key technology that aluminium alloy element manufacture need solve.
Just current, aluminium alloy brazing method mainly contains following several, (1) braze welding, and braze welding utilizes more than 450 degree solder brazing aluminium alloys.This kind of method is because temperature is for a long time more than 450 degree, and aluminium alloy mother metal can soften.(2) solder method, braze welding utilizes less than 450 degree solder brazing aluminium alloys.This kind of method, because weld strength is lower, is not suitable for large-scale promotion.(3) laser assisted method for brazing, the method is on the basis of existing method for welding, assist laser thermal source, improves solder wetting, thus improves wetting effect, but the method apparatus expensive.(4) ultrasonic wave added method for brazing, the method is on the basis of existing method for welding, assist ultrasonic vibration, improves solder wetting, thus improves wetting effect.Whether directly contact with solder according to ultrasonic, the method has ultrasonic immersed solder method and ultrasonic wave added vibrating and soldering method.The bonding area of aluminium alloy is mainly determined by the volume of ultrasonic device, and the method mainly can not weld large-area aluminium alloy, and institute's bonding strength is not high, is generally about 30MPa.Therefore, researching and developing a kind of aluminium alloy brazing method with excellent manufacturability and joint mechanical property is Al and Alalloy connecting material field technical problem urgently to be resolved hurrily.
Through finding the literature search of prior art, " solder of LD31 aluminium alloy electric brush plating SnPb brazing filler metal alloy " that Zhao Zhenqing, Wang Chunqing, Du Miao and Yi Huang etc. deliver on " welding journal " the 7th phase in 2005, propose in this article to adopt in brush nickel barrier layer, LD31 surface, copper modified layer, the connection of LD31 aluminium alloy is converted into the connection of copper, directly soldering is carried out at the surface electrical brush plating SnPb solder of copper plate, this research achieves the low temperature solder of aluminium alloy, and the shearing strength of joint can reach 20MPa.Its deficiency is: needed to carry out twice electroplating technology before brazed aluminum alloy, technical process is more loaded down with trivial details." Joining of 6061 aluminium ultrasonic soldered of Sn – Pb – Zn alloys " that article dingmin delivers on " Materials Science and Technology ", this article proposes to adopt ultrasonic wave added immersed solder method welding aluminum alloy, and maximum intensity is 54.36MPa.Its deficiency is: need workpiece all to immerse, solder is comparatively wasted, and intensity is slightly low.Patent CN101284323B disclosed " titanium alloy and aluminium alloy or aluminum base compound material ultrasound precoating and soldering method ", aluminium alloy or aluminum base compound material ultrasound precoating and soldering method are proposed, technique is more complicated, and temperature is higher, need to polish to the solder layer that titanium alloy sheet and aluminium alloy or aluminum matrix composite plate apply respectively, solder layer thickness after polishing is evenly, smoothly, strict to pre-coated solder thickness requirement, and soldering Front-coating mirror needs cool to room temperature.
Summary of the invention
The object of a kind of aluminium alloy of the present invention ultrasonic semisolid coating method for welding technical scheme is: in order to solve manufacturability deficiency and problem demanding prompt solution in above-mentioned prior art, thus provide a kind of good brazing manufacturability and joint mechanical property of ensureing, simple and practical aluminium alloy ultrasonic semisolid coating soldering tech scheme.
A kind of aluminium alloy of the present invention ultrasonic semisolid coating method for welding, it is characterized in that a kind of good brazing manufacturability and joint mechanical property of ensureing, simple and practical aluminium alloy ultrasonic semisolid coating method for welding, its concrete process step is:
1) first polish to 6061 aluminium alloys that wish of the present invention will carry out soldering, then clean, expose metallic luster, its polishing time is: its scavenging period of 30-60s is: 30-60s;
2) adopt conventional clamp fixing through 1) positioning for 6061 aluminium alloys that will carry out soldering of processing;
3) be SnPb eutectic alloy 90 ~ 92%, AgCu eutectic alloy 1.5 ~ 2%, Zn element 6 ~ 10% by weight percentage by required chemical composition in atmosphere, surplus is the Sn-Pb-Zn-Ag-Cu brazing filler metal melts of Bi, and be warming up to 270-300 DEG C for subsequent use;
4) ultrasonic wave added plating: open ultrasonic, energy is 300-900W, simultaneously 2) the aluminum alloy surface plating 3 of locating) solder for subsequent use, its braze surface Plating times is 30-60S;
5) by 4) after aluminium alloy that plating is good is cooled to 180-210 DEG C, make it be semi-solid state, then under semisolid, apply pressure 0.1-0.5MPa, the time of exerting pressure is 10-15S, completes soldering.
A kind of aluminium alloy of the present invention ultrasonic semisolid coating method for welding, its advantage is: adopt the most I of the soldered fitting shear strength of method for welding of the present invention to reach 101MPa.Method for welding of the present invention is particularly suitable for the soldering of large area aluminium alloy, and technique is simple, and intensity is high, has a good application prospect.
Accompanying drawing explanation
Typical case's macroscopic view metallograph of joint prepared by Fig. 1 the inventive method
Detailed description of the invention
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
The solder that the present invention adopts is Sn-Pb-Zn-Ag-Cu solder, and the chemical composition of this solder is SnPb eutectic alloy 90 ~ 92%, AgCu eutectic alloy 1.5 ~ 2%, Zn element 6 ~ 10% by weight percentage, and surplus is Bi.
The aluminium alloy adopted in the embodiment of the present invention is 6061 aluminium alloys.
Embodiment 1:
Aluminum alloy surface time to be brazed of polishing is 30s, and cleaning 30s, exposes metallic luster.In atmosphere brazing filler metal melts is warming up to 280 DEG C, open ultrasonic, energy is 600W, braze surface Plating times is 40S.After the aluminium alloy that plating is good is cooled to 200 DEG C, apply pressure 0.3MPa, the time of exerting pressure is 10S.
At room temperature carry out shear strength test by test, test result shear strength is 101MPa.
Embodiment 2:
Aluminum alloy surface time to be brazed of polishing is 45s, and cleaning 45s, exposes metallic luster.In atmosphere brazing filler metal melts is warming up to 270 DEG C, open ultrasonic, energy is 300W, braze surface Plating times is 30S.After the aluminium alloy that plating is good is cooled to 180 DEG C, apply pressure 0.1MPa, the time of exerting pressure is 10S.
At room temperature carry out shear strength test by test, test result shear strength is 105MPa.
Embodiment 3:
Aluminum alloy surface time to be brazed of polishing is 45s, and cleaning 60s, exposes metallic luster.In atmosphere brazing filler metal melts is warming up to 300 DEG C, open ultrasonic, energy is 900W, braze surface Plating times is 60S.After the aluminium alloy that plating is good is cooled to 210 DEG C, apply pressure 0.5MPa, the time of exerting pressure is 15S.
At room temperature carry out shear strength test by test, test result shear strength is 109MPa.
Claims (1)
1. an aluminium alloy ultrasonic semisolid coating method for welding, it is characterized in that a kind of good brazing manufacturability and joint mechanical property of ensureing, simple and practical aluminium low temperature brazing aluminium alloy ultrasonic semisolid coating method for welding, its concrete process step is:
1) first polish to 6061 aluminium alloys that wish of the present invention will carry out soldering, then clean, expose metallic luster, its polishing time is: its scavenging period of 30-60s is: 30-60s;
2) adopt conventional clamp fixing through 1) positioning for 6061 aluminium alloys that will carry out soldering of processing;
3) be SnPb eutectic alloy 90 ~ 92%, AgCu eutectic alloy 1.5 ~ 2%, Zn element 6 ~ 10% by weight percentage by required chemical composition in atmosphere, surplus is the Sn-Pb-Zn-Ag-Cu brazing filler metal melts of Bi, and be warming up to 270-300 DEG C for subsequent use;
4) ultrasonic wave added plating: open ultrasonic, energy is 300-900W, simultaneously 2) the aluminum alloy surface plating 3 of locating) solder for subsequent use, its braze surface Plating times is 30-60S;
5) by 4) after aluminium alloy that plating is good is cooled to 180-210 DEG C, make it be semi-solid state, then under semisolid, apply pressure 0.1-0.5MPa, the time of exerting pressure is 10-15S, completes soldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410591200.9A CN104400170A (en) | 2014-10-29 | 2014-10-29 | Aluminum alloy ultrasonic semi-solid coating brazing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410591200.9A CN104400170A (en) | 2014-10-29 | 2014-10-29 | Aluminum alloy ultrasonic semi-solid coating brazing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104400170A true CN104400170A (en) | 2015-03-11 |
Family
ID=52637870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410591200.9A Pending CN104400170A (en) | 2014-10-29 | 2014-10-29 | Aluminum alloy ultrasonic semi-solid coating brazing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104400170A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598541A (en) * | 2016-02-23 | 2016-05-25 | 深圳市昌龙盛机电技术有限公司 | Method for plating surfaces of Ni-Cr alloy wires with zinc at low temperature |
| CN105603159A (en) * | 2016-01-21 | 2016-05-25 | 江苏科技大学 | Ultrasonic-assisted surface engineering treatment device in furnace and ultrasonic-assisted surface engineering treatment method |
| CN105643040A (en) * | 2016-03-23 | 2016-06-08 | 徐宏达 | Brazing method for aluminum and aluminum alloy |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040016793A1 (en) * | 2002-07-24 | 2004-01-29 | Zhibo Zhao | Method for direct application of flux to a brazing surface |
| CN101234446A (en) * | 2008-03-06 | 2008-08-06 | 上海交通大学 | Aluminum alloy low temperature brazing method based on ultrasonic coating |
| CN101284323A (en) * | 2008-05-09 | 2008-10-15 | 哈尔滨工业大学 | Titanium alloy and aluminum alloy or aluminum base compound material ultrasound precoating and soldering method |
| CN101474699A (en) * | 2009-01-19 | 2009-07-08 | 哈尔滨工业大学 | Ultrasonic soldering method of aluminum or aluminum alloy |
| CN102179588A (en) * | 2011-04-29 | 2011-09-14 | 重庆理工大学 | Method for coating brazing filler metal on surface of aluminum alloy and aluminum compound material by stirring at semi-solid state |
| CN102266994A (en) * | 2011-07-20 | 2011-12-07 | 重庆理工大学 | Heterogeneous semi-solid brazing method for aluminum alloy and magnesium alloy under assistance of external vibration energy |
| CN102699562A (en) * | 2012-06-11 | 2012-10-03 | 太原理工大学 | Aluminum low-temperature soft solder and manufacturing method thereof |
| CN103240924A (en) * | 2013-04-17 | 2013-08-14 | 太原理工大学 | Magnesium alloy honeycomb structure material and preparation method thereof |
-
2014
- 2014-10-29 CN CN201410591200.9A patent/CN104400170A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040016793A1 (en) * | 2002-07-24 | 2004-01-29 | Zhibo Zhao | Method for direct application of flux to a brazing surface |
| CN101234446A (en) * | 2008-03-06 | 2008-08-06 | 上海交通大学 | Aluminum alloy low temperature brazing method based on ultrasonic coating |
| CN101284323A (en) * | 2008-05-09 | 2008-10-15 | 哈尔滨工业大学 | Titanium alloy and aluminum alloy or aluminum base compound material ultrasound precoating and soldering method |
| CN101474699A (en) * | 2009-01-19 | 2009-07-08 | 哈尔滨工业大学 | Ultrasonic soldering method of aluminum or aluminum alloy |
| CN102179588A (en) * | 2011-04-29 | 2011-09-14 | 重庆理工大学 | Method for coating brazing filler metal on surface of aluminum alloy and aluminum compound material by stirring at semi-solid state |
| CN102266994A (en) * | 2011-07-20 | 2011-12-07 | 重庆理工大学 | Heterogeneous semi-solid brazing method for aluminum alloy and magnesium alloy under assistance of external vibration energy |
| CN102699562A (en) * | 2012-06-11 | 2012-10-03 | 太原理工大学 | Aluminum low-temperature soft solder and manufacturing method thereof |
| CN103240924A (en) * | 2013-04-17 | 2013-08-14 | 太原理工大学 | Magnesium alloy honeycomb structure material and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603159A (en) * | 2016-01-21 | 2016-05-25 | 江苏科技大学 | Ultrasonic-assisted surface engineering treatment device in furnace and ultrasonic-assisted surface engineering treatment method |
| CN105598541A (en) * | 2016-02-23 | 2016-05-25 | 深圳市昌龙盛机电技术有限公司 | Method for plating surfaces of Ni-Cr alloy wires with zinc at low temperature |
| CN105598541B (en) * | 2016-02-23 | 2018-03-30 | 深圳市昌龙盛机电技术有限公司 | A kind of tin plating method of Ni Cr B alloy wire surface low-temperatures |
| CN105643040A (en) * | 2016-03-23 | 2016-06-08 | 徐宏达 | Brazing method for aluminum and aluminum alloy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104084658B (en) | Diffusion brazing connecting method for contact reaction of magnesium alloy and steel | |
| CN103143804B (en) | A kind of titanium, aluminum dissimilar metal ultrasonic wave added flame brazing method | |
| CN101234446A (en) | Aluminum alloy low temperature brazing method based on ultrasonic coating | |
| CN103143803B (en) | Arc welding-brazing method for pre-coating titanium alloy and aluminum alloy | |
| CN102151930A (en) | Dissimilar metal material brazing method | |
| CN105108257B (en) | A kind of transition liquid-phase assisted Solid-state connection method | |
| CN104259663B (en) | The dissimilar material joining method of niti-shaped memorial alloy and copper alloy and fixture thereof | |
| CN102489813A (en) | Vacuum active brazing process of molybdenum-copper alloys and stainless steel | |
| CN101745736A (en) | Copper alloy and stainless diffusion welding method | |
| CN104439590B (en) | A kind of 6061 aluminium alloys and the soldering processes of AZ31B magnesium alloy | |
| CN103567619B (en) | Copper-aluminum dissimilar metal rapid connection method | |
| CN104400170A (en) | Aluminum alloy ultrasonic semi-solid coating brazing method | |
| CN110883395B (en) | Brazing method for aluminum alloy with surface activation by means of liquid gallium pre-coating | |
| CN101502904A (en) | Aluminum silicon carbide composite material for packaging microelectron and method for brazing kovar alloy | |
| CN106216873A (en) | A kind of high-temp solder preparation method based on metallic tin filled and process silver | |
| CN103111743A (en) | Rapid welding method for steel and aluminum or aluminum alloy | |
| CN102896406A (en) | TIG welding method of titanium alloy and pure aluminum plates | |
| CN102873422B (en) | Aluminum and aluminum alloy and copper diffusion brazing process | |
| CN106270868A (en) | A kind of pure boron activated diffusion soldering connects the method for copper and steel | |
| CN107127468B (en) | Preparation method of high-temperature interconnection welding spot based on foam copper | |
| CN101992331B (en) | Vacuum brazing process for super-Ni laminated material and Cr18-Ni8 stainless steel | |
| CN109759742B (en) | Solder for soldering flux-free and soldering method | |
| Selvaraj et al. | Assesment of influncing factors on mechanical and electrical properties of Al/Cu joints | |
| CN109773294A (en) | A kind of ultrasonic wave added semi-solid welding method of aluminium alloy and magnesium alloy | |
| Greve et al. | Microstructural evolution of transient liquid phase sinter joints in high temperature environmental conditions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |