CN110957073A - Method for manufacturing copper conductive bar with flexibility and rigidity - Google Patents
Method for manufacturing copper conductive bar with flexibility and rigidity Download PDFInfo
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- CN110957073A CN110957073A CN201911164002.3A CN201911164002A CN110957073A CN 110957073 A CN110957073 A CN 110957073A CN 201911164002 A CN201911164002 A CN 201911164002A CN 110957073 A CN110957073 A CN 110957073A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
Abstract
The invention provides a method for manufacturing a copper conductive bar with flexibility and rigidity, which adopts friction stir welding as a connecting means to connect copper soft bars and copper hard bars, and a welded workpiece is manufactured into the copper conductive bar with flexibility and rigidity by using a cutting tool, and comprises the following specific steps: the designed copper thin plate is placed on a workbench in a laminated mode, and the welding position of the friction stir welding and the position which needs to be fixed rigidly locally are welded by a welding method; selecting the specification of a welding tool according to the plate thickness and the material grade; removing oil stains on the surface of the product and burrs on the surface of a welding line, and ensuring the gap and the flatness of a single welding line; placing the copper hard bar on the forward side of the welding seam, placing the copper soft bar on the backward side of the welding seam, and using a tool setter to perform tool setting on a welding tool so as to ensure errors of a welding plane coordinate and a pressing direction coordinate; installing a stirring head for welding; the welded workpiece is cut to a desired shape using a cutting tool. The invention has reasonable structure and convenient operation, ensures the product quality and reduces the production cost.
Description
Technical Field
The invention relates to a manufacturing method of an electronic component, in particular to a manufacturing method of a copper conducting bar with flexibility and rigidity.
Background
With the rapid development of the electronic and power industry, the requirement for the conductive device inside the industry is higher and higher, and the improvement of the manufacturing method of the copper conductive bar is also needed. The traditional copper conducting bar is usually formed by stamping a copper plate, the method can fully ensure the conducting effect of the conducting bar, but the method is difficult to be qualified for the special structural design of flexible connection of products. Therefore, in products requiring flexible connection and frequent impact, a copper busbar formed by hot press brazing of a thin copper plate is generally selected for conductive connection. Although this method can satisfy the use requirement, the overall manufacturing cost increases, the processing cycle becomes long, and the economic efficiency is low.
Friction stir welding, as a novel solid phase welding method, can realize high-strength connection of nonferrous metals such as aluminum, copper, titanium and the like. Meanwhile, the method does not cause material melting in the welding process, and the resistance value of the welding seam area after welding is the smallest one in the connection method.
Therefore, the present invention provides a new technical solution to the above problems.
Disclosure of Invention
The invention aims to provide a method for manufacturing a copper conducting bar with flexibility and rigidity, which is convenient to operate, low in cost and high in working efficiency.
The invention is realized by the following technical scheme:
a method for manufacturing a copper conductive bar with flexibility and rigidity, which adopts friction stir welding as a connecting means to connect a copper soft bar and a copper hard bar, and a welded workpiece is manufactured into the copper conductive bar with flexibility and rigidity by using a cutting tool, comprises the following specific steps:
(1) the designed copper thin plate is placed on a workbench in a laminated mode, and the welding position of the friction stir welding and the position which needs to be fixed rigidly locally are welded by a welding method;
(2) selecting the specification of a welding tool according to the plate thickness and the material grade;
(3) removing oil stains on the surface of the product and burrs on the surface of a welding line, and ensuring that the gap and the flatness of a single welding line are good;
(4) placing the copper hard bar on the forward side of the welding seam, placing the copper soft bar on the backward side of the welding seam, and using a tool setter to perform tool setting on a welding tool so as to ensure the coordinate error of a welding plane and the coordinate error of a pressing-in direction;
(5) installing a stirring head for welding;
(6) the welded workpiece is cut to a desired shape using a cutting tool.
Further, in the step (1), the welding method is soldering, diffusion welding or thermocompression welding.
Further, in the step (2), the standard for selecting the welding tool specification is as follows: the length of the stirring pin is less than or equal to 0.2mm and less than or equal to 0.3 mm-the welding depth.
Further, in the step (3), oil stains on the surface of the product are removed by wiping with acetone or alcohol and the like, burrs on the surface of the welding line are removed by using a file or a trimmer, and the gap of each welding line is less than or equal to 0.4 mm.
Further, in the step (4), the coordinate error of the welding plane is less than or equal to 0.2mm, and the coordinate error of the pressing direction is less than or equal to 0.1 mm.
Further, in the step (5), the welding tool is pressed in from a welding starting point, the pressing depth of the shaft shoulder is 0.05-0.5 mm, welding is carried out by a welding process of 50-3000 mm/min at 200-5000 rpm, and the welding tool advances along a welding path and stays at the tail end of a welding line or a designed leading-out position until the welding process is finished.
Further, in the step (6), the cutting tool is a wire cutting, stamping, laser cutting or sawing machine.
The invention has the beneficial effects that: the invention has reasonable structure, uses friction stir welding as a connecting means to connect the copper soft bar and the copper hard bar, and manufactures the welded workpiece into the conductive bar with low cost, flexibility and rigidity by means of stamping, wire cutting and the like. Convenient operation, ensured product quality and reduced production cost.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a right side view of the present invention.
Wherein: 1. friction stir welding 2, copper sheets 3, a workbench 4, a welding seam gap 5 and a stirring head.
Detailed Description
The invention is further described in the following description with reference to the drawings.
As shown in fig. 1-2, a method for manufacturing a copper conductive bar with both flexibility and rigidity, which uses friction stir welding 1 as a connecting means to connect copper soft bars and copper hard bars, and uses a cutting tool to manufacture a welded workpiece into a conductive bar with both flexibility and rigidity, comprises the following steps:
(1) the designed copper sheet 2 is arranged on a workbench 3 in a laminated mode, and the welding position of the friction stir welding and the position which needs rigid fixation locally are welded by a welding method;
(2) selecting the specification of a welding tool according to the plate thickness and the material grade;
(3) removing oil stains on the surface of the product and burrs on the surface of a welding line, and ensuring that a single welding line gap 4 and flatness are good;
(4) placing the copper hard bar on the forward side of the welding seam, placing the copper soft bar on the backward side of the welding seam, and using a tool setter to perform tool setting on a welding tool so as to ensure the coordinate error of a welding plane and the coordinate error of a pressing-in direction;
(5) installing a stirring head 5 for welding;
(6) the welded workpiece is cut to a desired shape using a cutting tool.
In this embodiment, in step (1), the welding method is brazing, diffusion welding or thermocompression welding.
In this embodiment, in step (2), the standard for selecting the bonding tool specification is: the length of the stirring pin is less than or equal to 0.2mm and less than or equal to 0.3 mm-the welding depth.
In the embodiment, in the step (3), oil stains on the surface of the product are removed by wiping with acetone or alcohol, burrs on the surface of the weld joint are removed by using a file or an edger, and the gap of each weld joint is less than or equal to 0.4 mm.
In the embodiment, in the step (4), the coordinate error of the welding plane is less than or equal to 0.2mm, and the coordinate error of the pressing direction is less than or equal to 0.1 mm.
In the embodiment, in the step (5), the welding tool is pressed in from the welding starting point, the shaft shoulder pressing depth is 0.05-0.5 mm, welding is carried out by a welding process of 50-3000 mm/min at 200-5000 rpm, and the welding tool advances along a welding path and stays to the tail end of a welding seam or a designed leading-out position until the welding process is finished.
In this embodiment, in step (6), the cutting tool is wire cutting, punching, laser cutting or sawing machine.
The invention has reasonable structure, uses friction stir welding as a connecting means to connect the copper soft bar and the copper hard bar, and manufactures the welded workpiece into the conductive bar with low cost, flexibility and rigidity by means of stamping, wire cutting and the like. Convenient operation, ensured product quality and reduced production cost.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A method for manufacturing a copper conducting bar with flexibility and rigidity is characterized in that: the method adopts friction stir welding as a connecting means to connect the copper soft bar and the copper hard bar, and a welded workpiece is made into a conductive bar with flexibility and rigidity by using a cutting tool, and the method comprises the following specific steps:
(1) the designed copper thin plate is placed on a workbench in a laminated mode, and the welding position of the friction stir welding and the position which needs to be fixed rigidly locally are welded by a welding method;
(2) selecting the specification of a welding tool according to the plate thickness and the material grade;
(3) removing oil stains on the surface of the product and burrs on the surface of a welding line, and ensuring the gap and the flatness of a single welding line;
(4) placing the copper hard bar on the forward side of the welding seam, placing the copper soft bar on the backward side of the welding seam, and using a tool setter to perform tool setting on a welding tool so as to ensure errors of a welding plane coordinate and a pressing direction coordinate;
(5) installing a stirring head for welding;
(6) the welded workpiece is cut to a desired shape using a cutting tool.
2. The method of claim 1, further comprising the steps of: in the step (1), the welding method is brazing, diffusion welding or hot-press welding.
3. The method of claim 1, further comprising the steps of: in the step (2), the standard of the welding tool specification selection is as follows: the length of the stirring pin is less than or equal to 0.2mm and less than or equal to 0.3 mm-the welding depth.
4. The method of claim 1, further comprising the steps of: in the step (3), oil stains on the surface of the product are removed by wiping with acetone or alcohol and the like, burrs on the surface of the welding line are removed by using a file or a trimmer, and the gap of a single welding line is less than or equal to 0.4 mm.
5. The method of claim 1, further comprising the steps of: in the step (4), the coordinate error of the welding plane is less than or equal to 0.2mm, and the coordinate error of the pressing direction is less than or equal to 0.1 mm.
6. The method of claim 1, further comprising the steps of: and (5) pressing the welding tool in from the welding starting point, wherein the pressing depth of the shaft shoulder is 0.05-0.5 mm, welding by a welding process of 50-3000 mm/min at 200-5000 rpm, and advancing along the welding path and staying to the tail end of the welding line or the designed leading-out position until the welding process is finished.
7. The method of claim 1, further comprising the steps of: in the step (6), the cutting tool is wire cutting, stamping, laser cutting or sawing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911164002.3A CN110957073A (en) | 2019-11-25 | 2019-11-25 | Method for manufacturing copper conductive bar with flexibility and rigidity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911164002.3A CN110957073A (en) | 2019-11-25 | 2019-11-25 | Method for manufacturing copper conductive bar with flexibility and rigidity |
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| US6352193B1 (en) * | 2000-08-01 | 2002-03-05 | General Electric Company | Apparatus for joining electrically conductive materials |
| CN104400209A (en) * | 2014-10-24 | 2015-03-11 | 江苏万奇电器集团有限公司 | Copper-aluminum conducting bar butt joint or butt joint and lap joint welding method |
| CN109623128A (en) * | 2018-12-07 | 2019-04-16 | 南京理工大学 | A kind of stirring-head and welding procedure for Solder for Al-Cu Joint Welding dissimilar metal object Hybrid connections |
| CN110014238A (en) * | 2019-04-29 | 2019-07-16 | 常州博瑞电力自动化设备有限公司 | A kind of chip flexible coupling joint welding method |
| CN110091050A (en) * | 2019-05-10 | 2019-08-06 | 无锡市晟锋金属材料有限公司 | A kind of soft hardwired welding method of copper material in special shape |
| CN209344329U (en) * | 2019-01-25 | 2019-09-03 | 昆山维肯恩电子科技有限公司 | A kind of soft busbar of abnormal shape is soft, firm docking structure |
| CN110247273A (en) * | 2019-06-27 | 2019-09-17 | 江西理工大学 | A kind of processing method that aluminium or copper based on Friction Stir Welding technology are flexible coupling and device |
| KR102034012B1 (en) * | 2019-04-05 | 2019-10-18 | 에이에프더블류 주식회사 | Manufacturing method of a bus bar using Friction Stir Welding |
-
2019
- 2019-11-25 CN CN201911164002.3A patent/CN110957073A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6352193B1 (en) * | 2000-08-01 | 2002-03-05 | General Electric Company | Apparatus for joining electrically conductive materials |
| CN104400209A (en) * | 2014-10-24 | 2015-03-11 | 江苏万奇电器集团有限公司 | Copper-aluminum conducting bar butt joint or butt joint and lap joint welding method |
| CN109623128A (en) * | 2018-12-07 | 2019-04-16 | 南京理工大学 | A kind of stirring-head and welding procedure for Solder for Al-Cu Joint Welding dissimilar metal object Hybrid connections |
| CN209344329U (en) * | 2019-01-25 | 2019-09-03 | 昆山维肯恩电子科技有限公司 | A kind of soft busbar of abnormal shape is soft, firm docking structure |
| KR102034012B1 (en) * | 2019-04-05 | 2019-10-18 | 에이에프더블류 주식회사 | Manufacturing method of a bus bar using Friction Stir Welding |
| CN110014238A (en) * | 2019-04-29 | 2019-07-16 | 常州博瑞电力自动化设备有限公司 | A kind of chip flexible coupling joint welding method |
| CN110091050A (en) * | 2019-05-10 | 2019-08-06 | 无锡市晟锋金属材料有限公司 | A kind of soft hardwired welding method of copper material in special shape |
| CN110247273A (en) * | 2019-06-27 | 2019-09-17 | 江西理工大学 | A kind of processing method that aluminium or copper based on Friction Stir Welding technology are flexible coupling and device |
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