CN106670641A - Friction welding process of copper pipe and aluminum pipe - Google Patents
Friction welding process of copper pipe and aluminum pipe Download PDFInfo
- Publication number
- CN106670641A CN106670641A CN201510751683.9A CN201510751683A CN106670641A CN 106670641 A CN106670641 A CN 106670641A CN 201510751683 A CN201510751683 A CN 201510751683A CN 106670641 A CN106670641 A CN 106670641A
- Authority
- CN
- China
- Prior art keywords
- pipe blank
- copper pipe
- aluminum pipe
- aluminum
- welding
- 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
- 239000010949 copper Substances 0.000 title claims abstract description 51
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 50
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 47
- 238000003466 welding Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000003754 machining Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007499 fusion processing Methods 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- 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
- B23K2103/18—Dissimilar materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a friction welding process of a copper pipe and an aluminum pipe, and relates to the field of welding. The friction welding process comprises the following steps: a, blanking a copper pipe blank and an aluminum pipe blank; b, carrying out cutting machining on the welding end surfaces of the copper pipe blank and the aluminum pipe blank; c, mounting the aluminum pipe blank into a moving clamp, and mounting the copper pipe blank into a rotating clamp; d, starting the rotating clamp to drive the copper pipe blank to rotate, driving the moving clamp to drive the aluminum pipe blank to move towards the direction of the rotating clamp, and enabling the welding end surfaces of the copper pipe blank and the aluminum pipe blank to frictionize each other; e, when the friction time reaches 1.9 to 2.5 seconds, stopping the rotating clamp immediately to enable the copper pipe blank to stop rotating immediately; and f, controlling the moving clamp to pre-forge a welding joint. The process is simple; friction welding of the copper pipe and the aluminum pipe can be realized, so that the welding strength and the service life can meet the ruled requirements; the sealing property is high, and the conductivity is higher than that of aluminum; and furthermore, batch and efficient production can be realized.
Description
Technical field
The present invention relates to the friction-welding technique of welding field, specially a kind of copper pipe and aluminum pipe.
Background technology
Dissimilar metal attachment structure has the comprehensive premium properties of bi-material, is widely used in national defence and national product field, and application prospect constantly expands.Such as, copper has fabulous electric conductivity, a thermal conductivity, but due to copper price costly, bring huge cost pressure to the relevant enterprise of electrical engineering field.Aluminium and aluminium alloy equally have excellent physical characteristic and mechanical property.
In order to save production cost, partial electric product or part replace copper with aluminium or copper and aluminium welding fitting, become a trend of current electrical equipment, electric power industry development.But, because the fusing point difference of bi-material is nearly 400 DEG C, intersolubility is extremely limited, and in conventional fusion process, the mass fraction of Cu is general in joint is inevitably generated aluminum bronze weld metal zone brittle intermetallic thing all 30% or so, has a strong impact on strength of joint.Therefore it is difficult to be welded using traditional fusion welding method.
The content of the invention
It is an object of the invention to provide the high-quality and efficient friction-welding technique of a kind of achievable copper pipe and aluminum pipe.
Realizing the technical scheme of above-mentioned purpose is：A kind of friction-welding technique of copper pipe and aluminum pipe, it is characterised in that：A, lower copper pipe blank and aluminum pipe blank；
B, the welding end surface to copper pipe blank and aluminum pipe blank carry out machining；C, aluminum pipe blank is installed in a movable clamp；Copper pipe blank is installed in a rotary clamp, and copper pipe blank and aluminum pipe blank is located on same axis；D, startup rotary clamp, drive the rotation of copper pipe blank, while driving movable clamp to drive aluminum pipe blank to the movement of rotary clamp direction, and make the welding end surface phase mutual friction of copper pipe blank and aluminum pipe blank；E, after the welding end surface fraction time of copper pipe blank and aluminum pipe blank reaches 1.9-2.5S, rotary clamp stops immediately, and copper pipe blank stops operating immediately, and the faying face of copper pipe blank and aluminum pipe blank forms welding point；F, upset process is carried out to the welding point by the mobile dynamic fixture of control, the upsetting force that the upset is processed is controlled in 4.0-4.5MPa；After g, upset process terminate, open sliding clamp and take out finished product with movable clamp.
Preferably, in step d copper pipe blank and the friction pressure of aluminum pipe blank is 2.5-2.8 MPa.
The process is simple of the present invention, can realize the friction welding of copper pipe and aluminum pipe, and the intensity and life-span that make welding reach the requirement of regulation, and good airproof performance, electric conductivity are better than aluminium, and can realize batch, efficiently production.
Specific embodiment
The friction-welding technique of a kind of copper pipe and aluminum pipe, comprises the technical steps that：
A, lower copper pipe blank and aluminum pipe blank；
B, the welding end surface to copper pipe blank and aluminum pipe blank carry out machining；
C, aluminum pipe blank is installed in a movable clamp；Copper pipe blank is installed in a rotary clamp, and copper pipe blank and aluminum pipe blank is located on same axis；
D, startup rotary clamp, drive the rotation of copper pipe blank, while driving movable clamp to drive aluminum pipe blank to the movement of rotary clamp direction, and make the welding end surface phase mutual friction of copper pipe blank and aluminum pipe blank, and friction pressure is 2.5-2.8 MPa；
E, after the welding end surface fraction time of copper pipe blank and aluminum pipe blank reaches 1.9-2.5S, rotary clamp stops immediately, and copper pipe blank stops operating immediately, and the faying face of copper pipe blank and aluminum pipe blank forms welding point；
F, upset process is carried out to the welding point by the mobile dynamic fixture of control, the upsetting force that the upset is processed is controlled in 4.0-4.5MPa；
After g, upset process terminate, open sliding clamp and take out finished product with movable clamp.
Claims (2)
1. the friction-welding technique of a kind of copper pipe and aluminum pipe, it is characterised in that：A, lower copper pipe blank and aluminum pipe blank；B, the welding end surface to copper pipe blank and aluminum pipe blank carry out machining；C, aluminum pipe blank is installed in a movable clamp；Copper pipe blank is installed in a rotary clamp, and copper pipe blank and aluminum pipe blank is located on same axis；D, startup rotary clamp, drive the rotation of copper pipe blank, while driving movable clamp to drive aluminum pipe blank to the movement of rotary clamp direction, and make the welding end surface phase mutual friction of copper pipe blank and aluminum pipe blank；E, after the welding end surface fraction time of copper pipe blank and aluminum pipe blank reaches 1.9-2.5S, rotary clamp stops immediately, and copper pipe blank stops operating immediately, and the faying face of copper pipe blank and aluminum pipe blank forms welding point；F, upset process is carried out to the welding point by the mobile dynamic fixture of control, the upsetting force that the upset is processed is controlled in 4.0-4.5MPa；After g, upset process terminate, open sliding clamp and take out finished product with movable clamp.
2. the friction-welding technique of a kind of copper pipe according to claim 1 and aluminum pipe, it is characterised in that：The friction pressure of copper pipe blank and aluminum pipe blank in step d is 2.5-2.8 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751683.9A CN106670641A (en) | 2015-11-09 | 2015-11-09 | Friction welding process of copper pipe and aluminum pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751683.9A CN106670641A (en) | 2015-11-09 | 2015-11-09 | Friction welding process of copper pipe and aluminum pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106670641A true CN106670641A (en) | 2017-05-17 |
Family
ID=58862802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510751683.9A Pending CN106670641A (en) | 2015-11-09 | 2015-11-09 | Friction welding process of copper pipe and aluminum pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106670641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369806A (en) * | 2017-07-11 | 2017-11-21 | 浙江波恩电源制造有限公司 | A kind of Copper-Aluminum compound pole and its processing technology |
| CN107695508A (en) * | 2017-10-10 | 2018-02-16 | 青海西矿杭萧钢构有限公司 | A kind of assembling and welding method of steel pipe bundle |
-
2015
- 2015-11-09 CN CN201510751683.9A patent/CN106670641A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369806A (en) * | 2017-07-11 | 2017-11-21 | 浙江波恩电源制造有限公司 | A kind of Copper-Aluminum compound pole and its processing technology |
| CN107369806B (en) * | 2017-07-11 | 2020-06-12 | 浙江波恩电源制造有限公司 | Copper-aluminum composite pole and processing technology thereof |
| CN107695508A (en) * | 2017-10-10 | 2018-02-16 | 青海西矿杭萧钢构有限公司 | A kind of assembling and welding method of steel pipe bundle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170517 |
|
| WD01 | Invention patent application deemed withdrawn after publication |