CN112427792A - Resistance welding method for aluminum alloy sheet - Google Patents
Resistance welding method for aluminum alloy sheet Download PDFInfo
- Publication number
- CN112427792A CN112427792A CN202011159312.9A CN202011159312A CN112427792A CN 112427792 A CN112427792 A CN 112427792A CN 202011159312 A CN202011159312 A CN 202011159312A CN 112427792 A CN112427792 A CN 112427792A
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- alloy sheet
- welding method
- resistance welding
- resistance
- 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
Images
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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The invention relates to the technical field of welding, and discloses a resistance welding method of aluminum alloy sheets. Based on the method, grease remained on the surface of the aluminum alloy sheet due to oil sealing can be removed through deoiling treatment, and the adhesive layer can form sealing between the welding surfaces of the two aluminum alloy sheets, so that the sealing performance of the aluminum alloy sheets during welding is improved, the quality of the welded aluminum alloy workpiece is improved, and the aluminum alloy workpiece is not easy to deform.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a resistance welding method of an aluminum alloy sheet.
Background
The aluminum alloy sheet is widely applied to the fields of spaceflight, automobiles, ships, bridges, low-temperature devices and the like, and is used for manufacturing various parts, oil tanks, corrosion-resistant containers, conducting wires and the like.
In the existing resistance welding method for the aluminum alloy sheets, because an operator does not treat the welding surfaces before welding, the welding surfaces of two aluminum alloy sheets to be welded have poor tightness during welding, and the welded aluminum alloy workpieces have low quality and are easy to deform.
Disclosure of Invention
The invention aims to provide a resistance welding method of an aluminum alloy sheet, which has better sealing performance and is difficult to deform an aluminum alloy workpiece.
In order to achieve the above object, the present invention provides a resistance welding method of an aluminum alloy thin plate, comprising the steps of:
s1, performing deoiling treatment on the aluminum alloy thin plates;
s2, forming an adhesive layer between the welding surfaces of the two aluminum alloy sheets, wherein the adhesive layer covers the welding surfaces;
s3, arranging the two aluminum alloy sheets between an upper electrode and a lower electrode of a resistance welding machine;
and S4, welding the two aluminum alloy sheets through the resistance welding machine.
In some embodiments of the present application, in the step of S2, the adhesive layer is formed by adhesive coating.
In some embodiments of the present application, the adhesive layer has a thickness of 0.5mm to 1 mm.
In some embodiments of the present application, the aluminum alloy sheet has a thickness of 1 to 3 mm.
In some embodiments of the present application, in step S1, each of the aluminum alloy sheets is subjected to a de-oxidation film treatment.
In some embodiments of the present application, between the steps S1 and S2, two aluminum alloy sheets are disposed between upper and lower electrodes of the resistance welder, and a contact resistance value of the two aluminum alloy sheets is obtained by a resistance detecting device.
In some embodiments of the present application, the probe heads of the resistance detection apparatus are respectively connected to the upper and lower electrodes.
In some embodiments of the present application, at least 5 contact resistance values are obtained, an average contact resistance value is calculated, and at least one of the aluminum alloy sheets is replaced when the average contact resistance value is greater than a predetermined contact resistance value.
In some embodiments of the present application, in step S4, the welding is performed by a step-back welding method.
The invention provides a resistance welding method of an aluminum alloy sheet, which has the following beneficial effects compared with the prior art:
the resistance welding method of the aluminum alloy sheets comprises the steps of deoiling each aluminum alloy sheet, forming an adhesive layer between the welding surfaces of the two aluminum alloy sheets, covering the welding surfaces with the adhesive layer, arranging the two aluminum alloy sheets between an upper electrode and a lower electrode of a resistance welding machine, and welding the two aluminum alloy sheets through the resistance welding machine. Based on the method, grease remained on the surface of the aluminum alloy sheet due to oil sealing can be removed through deoiling treatment, and the adhesive layer can form sealing between the welding surfaces of the two aluminum alloy sheets, so that the sealing performance of the aluminum alloy sheets during welding is improved, the quality of the welded aluminum alloy workpiece is improved, and the aluminum alloy workpiece is not easy to deform.
Drawings
FIG. 1 is a schematic flow chart of a resistance welding method for an aluminum alloy sheet according to an embodiment of the present invention;
fig. 2 is a schematic view of the contact resistance values of two aluminum alloy sheets obtained in the resistance welding method for aluminum alloy sheets according to the embodiment of the invention.
In the figure: 1. an aluminum alloy sheet; 2. an electrode; 3. resistance detection device.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first", "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.
It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
It is emphasized that the aluminum alloy sheet in the present application refers to an aluminum alloy sheet having a thickness of 1 to 10 mm.
As shown in fig. 1, an embodiment of the present invention provides a resistance welding method for an aluminum alloy sheet 1, which includes the following steps:
s1, performing deoiling treatment on the aluminum alloy thin plates 1;
s2, forming an adhesive layer between the welding surfaces of the two aluminum alloy thin plates 1, wherein the adhesive layer covers the welding surfaces;
s3, arranging the two aluminum alloy sheets 1 between the upper electrode 2 and the lower electrode 2 of the resistance welding machine;
and S4, welding the two aluminum alloy sheets 1 by a resistance welding machine.
Based on the method, grease remained on the surface of the aluminum alloy sheet 1 due to oil sealing can be removed through deoiling treatment, and the adhesive layer can form sealing between the welding surfaces of the two aluminum alloy sheets 1, so that the sealing performance of the aluminum alloy sheets 1 during welding is improved, the quality of the welded aluminum alloy workpiece is improved, and the aluminum alloy workpiece is not easy to deform.
Alternatively, as shown in fig. 1, in the present embodiment, in the S2 step, the adhesive layer is formed by adhesive coating. It is emphasized that the adhesive coating covers the entire bonding surface and that the subsequent steps after the adhesive coating are preferably completed within 2 hours to prevent the adhesive layer from solidifying.
Alternatively, as shown in fig. 1, in the present embodiment, the thickness of the adhesive layer is 0.5mm to 1 mm.
Alternatively, as shown in fig. 1, in the present embodiment, the aluminum alloy sheet 1 has a thickness of 1 to 3 mm.
Optionally, as shown in fig. 1, in this embodiment, in step S1, the method further includes the following steps:
s101, performing oxidation film removing treatment on each aluminum alloy thin plate 1. In this way, the aluminum alloy sheet 1 can be further cleaned.
Optionally, as shown in fig. 1 and fig. 2, in the present embodiment, between the steps S1 and S2, the following steps are further included:
s102, arranging the two aluminum alloy sheets 1 between an upper electrode 2 and a lower electrode 2 of a resistance welding machine, and obtaining the contact resistance values of the two aluminum alloy sheets 1 through a resistance detection device 3. Based on this, the resistance value obtained by the resistance detection device 3 can detect whether impurities or pollutants exist on the welding surface of the aluminum alloy sheet 1.
Alternatively, as shown in fig. 2, in the present embodiment, the resistance detection device 3 employs a micro-ohmmeter.
Alternatively, as shown in fig. 2, in the present embodiment, in step S102, the probe heads of the resistance detection apparatus 3 are connected to the upper and lower electrodes 2, respectively. Thus, the contact resistance value obtained by the resistance detection device 3 can detect the existence of impurities or pollutants on the welding surface of the aluminum alloy sheet 1, and can also detect the existence of impurities or pollutants between the upper electrode 2 and the lower electrode 2 of the resistance welding machine and the aluminum alloy sheet 1 in contact with the upper electrode and the lower electrode.
Optionally, as shown in fig. 1 and fig. 2, in the present embodiment, between the steps S1 and S2, the following steps are further included:
s103, obtaining at least 5 contact resistance values, calculating an average contact resistance value, and replacing at least one aluminum alloy sheet 1 when the average contact resistance value is larger than a preset contact resistance value. Specifically, the predetermined contact resistance value is 150 μ Ω, and when the average contact resistance value is greater than the predetermined contact resistance value, the at least one aluminum alloy sheet 1 is replaced, and the step of detecting the contact resistance value is repeated until the average contact resistance value is less than the predetermined contact resistance value, and then the replaced aluminum alloy sheet 1 is welded, which is beneficial to further improving the quality of the aluminum alloy workpiece.
It is emphasized that the optimum range of the average contact resistance value is 20 μ Ω to 60 μ Ω.
Alternatively, in the present embodiment, in step S4, the welding is performed by a step-back welding method.
To sum up, the embodiment of the present invention provides a resistance welding method for aluminum alloy sheets 1, which mainly includes performing deoiling treatment on each aluminum alloy sheet 1, forming an adhesive layer between the welding surfaces of two aluminum alloy sheets 1, wherein the adhesive layer covers the welding surfaces, arranging the two aluminum alloy sheets 1 between the upper and lower electrodes 2 of a resistance welding machine, and welding the two aluminum alloy sheets 1 through the resistance welding machine. Compared with the prior art, the resistance welding method of the aluminum alloy sheet 1 has the advantages of good sealing performance, difficult deformation of aluminum alloy workpieces and the like.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A resistance welding method of an aluminum alloy sheet is characterized by comprising the following steps:
s1, performing deoiling treatment on the aluminum alloy thin plates;
s2, forming an adhesive layer between the welding surfaces of the two aluminum alloy sheets, wherein the adhesive layer covers the welding surfaces;
s3, arranging the two aluminum alloy sheets between an upper electrode and a lower electrode of a resistance welding machine;
and S4, welding the two aluminum alloy sheets through the resistance welding machine.
2. A resistance welding method for an aluminum alloy sheet as recited in claim 1, wherein:
in step S2, the adhesive layer is formed by coating an adhesive.
3. A resistance welding method for an aluminum alloy sheet as recited in claim 1, wherein:
the thickness of the adhesive layer is 0.5mm-1 mm.
4. A resistance welding method for an aluminum alloy sheet as recited in claim 1, wherein:
the thickness of the aluminum alloy thin plate is 1-3 mm.
5. A resistance welding method for an aluminum alloy sheet as recited in claim 1, further comprising, in step S1, the steps of:
and carrying out oxidation film removing treatment on each aluminum alloy sheet.
6. A resistance welding method for aluminum alloy sheet as recited in claim 1, further comprising, between the steps of S1 and S2, the steps of:
and arranging the two aluminum alloy sheets between an upper electrode and a lower electrode of the resistance welding machine, and acquiring the contact resistance values of the two aluminum alloy sheets through a resistance detection device.
7. A resistance welding method for an aluminum alloy sheet as recited in claim 6, wherein:
the probe of the resistance detection device is respectively connected with the upper electrode and the lower electrode.
8. An electric resistance welding method for an aluminum alloy sheet as recited in claim 6, further comprising the steps of:
and obtaining at least 5 contact resistance values, calculating an average contact resistance value, and replacing at least one aluminum alloy sheet when the average contact resistance value is larger than a preset contact resistance value.
9. A resistance welding method for an aluminum alloy sheet as recited in claim 1, wherein: in step S4, the welding is performed by a step-back welding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011159312.9A CN112427792A (en) | 2020-10-26 | 2020-10-26 | Resistance welding method for aluminum alloy sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011159312.9A CN112427792A (en) | 2020-10-26 | 2020-10-26 | Resistance welding method for aluminum alloy sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112427792A true CN112427792A (en) | 2021-03-02 |
Family
ID=74696133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011159312.9A Pending CN112427792A (en) | 2020-10-26 | 2020-10-26 | Resistance welding method for aluminum alloy sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112427792A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007326139A (en) * | 2006-06-09 | 2007-12-20 | Daihatsu Motor Co Ltd | Series spot welding equipment |
| JP2012024840A (en) * | 2010-06-24 | 2012-02-09 | Nissan Motor Co Ltd | Method and apparatus for joining |
| CN103692075A (en) * | 2013-11-28 | 2014-04-02 | 南车青岛四方机车车辆股份有限公司 | Resistance spot welding process for aluminium alloy parts |
| CN210060091U (en) * | 2019-04-22 | 2020-02-14 | 中车青岛四方机车车辆股份有限公司 | Resistance spot welding equipment for side wall of vehicle body |
-
2020
- 2020-10-26 CN CN202011159312.9A patent/CN112427792A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007326139A (en) * | 2006-06-09 | 2007-12-20 | Daihatsu Motor Co Ltd | Series spot welding equipment |
| JP2012024840A (en) * | 2010-06-24 | 2012-02-09 | Nissan Motor Co Ltd | Method and apparatus for joining |
| CN103692075A (en) * | 2013-11-28 | 2014-04-02 | 南车青岛四方机车车辆股份有限公司 | Resistance spot welding process for aluminium alloy parts |
| CN210060091U (en) * | 2019-04-22 | 2020-02-14 | 中车青岛四方机车车辆股份有限公司 | Resistance spot welding equipment for side wall of vehicle body |
Non-Patent Citations (2)
| Title |
|---|
| 元恒新等: "铝合金车身的点焊工艺", 《电焊机》 * |
| 夏文干等: "《胶接手册》", 28 February 1989 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10052710B2 (en) | Resistance spot welding steel and aluminum workpieces using electrode weld face cover | |
| CN104201296B (en) | Secondary cell with excellent sealing effectiveness | |
| JP5556364B2 (en) | Metal lead and its manufacturing method | |
| JP6220359B2 (en) | Tab lead material for film-clad battery and manufacturing method thereof | |
| CN105247737B (en) | Conductive member | |
| WO2011139331A1 (en) | Long life lead acid battery having titanium core grids and method of their production | |
| CN101383406A (en) | Battery lead wire and manufacturing method | |
| CN112427792A (en) | Resistance welding method for aluminum alloy sheet | |
| JP2012238454A (en) | Electrode terminal for secondary battery | |
| CN213845356U (en) | Battery packaging material, aluminum plastic film, soft package battery and battery thermal control device | |
| JP2010003711A (en) | Tab lead material and method for producing the same | |
| CN104625349B (en) | Aluminum alloy thin water channel cover plate and thick vacuum cavity water channel welding procedure | |
| US20130087364A1 (en) | Film Conductor for Flat Cells and Method for Producing Same | |
| CN102169978A (en) | Nickel coated aluminum battery cell tab | |
| EP3174125B1 (en) | Lithium-ion secondary-battery case and manufacturing method therefor | |
| JP6405856B2 (en) | Lead member and lead member manufacturing method | |
| CN110218990B (en) | Anode film repairing method, anode structure and chemical vapor deposition equipment | |
| JP4916646B2 (en) | Clad plate for polymer electrolyte fuel cell separator and method for producing the same | |
| CN111618588A (en) | Method for welding tab of soft-packaged battery cell | |
| CN114247974A (en) | Method for determining welding parameters of steel plate resistance spot welding process | |
| US4551219A (en) | Flush edge protected metal laminates | |
| JP2004276058A (en) | Resistance spot welding method for hot dip galvanized steel plate and joined body manufactured by resistance spot welding | |
| EP2738111B1 (en) | Three-piece resealable bottle | |
| JP5977821B2 (en) | Replacement parts for electrolytic cell flanges | |
| JP2004193561A (en) | Electric double layer capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210302 |
|
| RJ01 | Rejection of invention patent application after publication |