CN109365976A - A kind of production method and mold of Resistance Welding receiving electrode - Google Patents
A kind of production method and mold of Resistance Welding receiving electrode Download PDFInfo
- Publication number
- CN109365976A CN109365976A CN201811501897.0A CN201811501897A CN109365976A CN 109365976 A CN109365976 A CN 109365976A CN 201811501897 A CN201811501897 A CN 201811501897A CN 109365976 A CN109365976 A CN 109365976A
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- China
- Prior art keywords
- electrode
- mold
- concentric circles
- trace
- spot welding
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/3063—Electrode maintenance, e.g. cleaning, grinding
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/402—Non-consumable electrodes; C-electrodes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The invention discloses a kind of production method of lifetime of resistance spot welding electrode and molds, this method comprises the following steps: by one section of electrode to be processed, it is inserted into the concave shape blind hole of above-mentioned mold, undulatory concentric circles and electrode tip is set to completely attach to and fix, apply static load or impact force in disk bottom surface, until there is concentric circles trace on electrode tip to be processed, the corrugated surface electrode of the 3D structure of spot welding needs can be formed.The present invention carries out the production of corrugated surface electrode using 3D inscription rubbing method, can not only make completely new electrode, also can be applicable to the occasion of electrode reparation；Not only have many advantages, such as the advantages such as at low cost, high-efficient, while having easy to operate, therefore is suitable for automatic batch production, is of great significance in aluminium alloy pinpoint welding production.
Description
Technical field
The present invention relates to electric resistance welding technical fields, and in particular to a kind of production method and mould of lifetime of resistance spot welding electrode
Tool.
Background technique
In the application of conventionally manufactured production industry, electrode shape can be divided into cone electrode and radius tip electrode, Er Qieduan
Face is all bright and clean plane or curved surface, and the latter is widely applied in production since welding deformation amount is small.But it is electric
Hinder tack-weld airtightness it is relatively low, and be directed to certain specific position weldings when, due to be architectural limitation be difficult to realize it is close
Close welding.In actual production process, some products not only need to reach intensity requirement, want there are also air-tightness is good
It asks.Although seam weld can achieve the effect of sequential welding, it is not appropriate in some position and structure using seam weld, this just makes
It must be designed from the end surface shape of electrode to reach the requirement in production.
In recent years, the research of automotive light weight technology is using aluminium alloy as important materials, since the weldability of aluminium alloy is poor, point
The factor that nugget is influenced during weldering is more, enables aluminum alloy to point quality and is affected, how to guarantee aluminium alloy pinpoint welding quality always
It is one of the important topic that domestic external welding circle scholars are dedicated to research.Active very strong, the molten aluminum surface pole of aluminium in the liquid state
Easily AL is generated with the oxygen effect in atmosphere2O3Film.AL2O3Fusing point it is more much higher than the temperature of liquid aluminium alloy and very steady
It is fixed.Therefore, there are many problems in welding for aluminium alloy:
1, thermal conductivity is very big, is easy to produce welding deformation, weld crack tendency it is also obvious that and thinner aluminum alloy plate materials more
Hardly possible welding, is easy burn-through；
2, stomata is easily generated in aluminum alloy piping welding, is had led to since the hydrogen in molten bath cannot be discharged before appearance of weld
There are stomatas in weld seam；
3, aluminum alloy surface, which is directly exposed to air, is particularly easy to generate the oxidation film of one layer of infusibility on surface.
Corrugated surface electrode (having been applied in production line in General Motors Overseas Corporation) by change electrode surface shape be
Corrugated can directly be crushed its oxidation film, and in the base metals that the surfaces such as aluminium alloy are also easy to produce oxidation film, application is very extensive,
And on the basis of weld seam is good molding, welding efficiency is greatly improved while reducing process.Come both at home and abroad at present
It sees, the processing of corrugated surface electrode and repair mode are mainly turning, and such method is at high cost, low efficiency, is unsuitable for batch metaplasia
It produces.
Summary of the invention
To solve the above problems, the present invention provides a kind of production method of lifetime of resistance spot welding electrode and molds.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of production mold of lifetime of resistance spot welding electrode, using 30CrMnSi material, including integrally formed disk bottom surface and column
Body, top surface offers concave shape blind hole on the cylinder, and the interior bottom of the concave shape blind hole is disposed with several corrugated protrusions,
The protrusion of corrugated (shape can adjust shape and size according to production needs) is made of the concentric circles of different-diameter, adjacent
The spacing of two concentric circles is consistent, and central part is concavity spherical surface.
The present invention also provides a kind of production methods of lifetime of resistance spot welding electrode, include the following steps:
It is inserted into one section of electrode to be processed in the concave shape blind hole of above-mentioned mold, keeps undulatory concentric circles and electrode tip complete
Full connected and fixation apply static load or impact force in disk bottom surface, are up to there is concentric circles trace on electrode tip to be processed
Only, the corrugated surface electrode of the 3D structure of spot welding needs can be formed.
Wherein, during hammering, by removing mold, whether observation electrode tip generates the trace of corrugated concentric circles,
If no trace occurs or trace is shallower, mold and electrode to be processed are docked again, is hammered, until there is concentric circles trace
Until.When batch production, the automation means of Bit andits control or load control can be used, realization disposably shapes, it is not necessary to
Mold observation is removed repeatedly.
When carrying out electrode reparation, the corrugated surface of mold is aligned with the trace of electrode to (mold can realize automatic aligning
Function), after hammering repeatedly, the concentric grooves that electrode tip is filled with metal due to welding can be repaired.
The invention has the following advantages:
The production that corrugated surface electrode is carried out using 3D inscription rubbing method, can not only make completely new electrode, also can be applicable to electrode reparation
Occasion；Not only have many advantages, such as the advantages such as at low cost, high-efficient, at the same have it is easy to operate, therefore be suitable for automation batch
Amount production is of great significance in aluminium alloy pinpoint welding production.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the production mold of lifetime of resistance spot welding electrode of the embodiment of the present invention.
Fig. 2 is the sectional view of middle column body of the embodiment of the present invention.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
As Figure 1-Figure 2, the embodiment of the invention provides a kind of production molds of resistance point electrode, using 30CrMnSi
Material, including integrally formed disk bottom surface 1 and cylinder 2, top surface offers concave shape blind hole 3 on the cylinder 2, the concave shape
The interior bottom of blind hole 3 is disposed with several corrugated protrusions 4, which is made of the concentric circles of different-diameter, phase
The spacing of adjacent two concentric circles is consistent, and central part is concavity spherical surface.
The present invention also provides a kind of production methods of point of resistance receiving electrode, include the following steps:
It is inserted into one section of electrode to be processed in the concave shape blind hole 3 of above-mentioned mold, keeps undulatory concentric circles and electrode tip complete
Full connected and fixation apply static load or impact force in disk bottom surface, are up to there is concentric circles trace on electrode tip to be processed
Only, since die hardness is much higher than electrode, under force, complete inscription rubbing, can shape in electrode tip for corrugated protrusion
At the corrugated surface electrode for the 3D structure that spot welding needs.
Wherein, during hammering, by removing mold, whether observation electrode tip generates the trace of corrugated concentric circles,
If no trace occurs or trace is shallower, mold and electrode to be processed are docked again, is hammered, until there is concentric circles trace
Until.
When carrying out electrode repairing, the corrugated surface of mold is aligned with the trace of electrode, after hammering repeatedly, is filled with metal
Concentric grooves can be repaired.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (5)
1. a kind of production mold of lifetime of resistance spot welding electrode, including integrally formed disk bottom surface (1) and cylinder (2), feature exists
In: top surface offers concave shape blind hole (3) on the cylinder (2), and the interior bottom of the concave shape blind hole (3) is disposed with several ripples
The protrusion (4) of shape, the corrugated protrusion (4) are made of the concentric circles of different-diameter, and the spacing of adjacent two concentric circles keeps one
It causes, central part is concavity spherical surface.
2. a kind of production method of lifetime of resistance spot welding electrode, characterized by the following steps:
By one section of electrode to be processed, it is inserted into the concave shape blind hole (3) of mold, keeps undulatory concentric circles and electrode tip complete
It contacts and fixes, apply static load or impact force in disk bottom surface, until there is concentric circles trace on electrode tip to be processed,
The corrugated surface electrode of the 3D structure of spot welding needs can be formed.
3. a kind of production method of lifetime of resistance spot welding electrode as claimed in claim 2, it is characterised in that: during hammering, pass through
Mold is removed, whether observation electrode tip generates the trace of corrugated concentric circles, if shallower without trace appearance or trace, again
Mold and electrode to be processed are docked, is hammered, until the concentric circles trace for welding demand size occur.
4. a kind of production method of lifetime of resistance spot welding electrode as claimed in claim 2, it is characterised in that: carrying out electrode reparation
When, the corrugated surface of mold is aligned with the trace of electrode, after hammering repeatedly, electrode tip is filled with metal same due to welding
Heart circle groove can be repaired.
5. a kind of production method of lifetime of resistance spot welding electrode as described in claim 1, it is characterised in that: the mold uses
30CrMnSi material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811501897.0A CN109365976A (en) | 2018-12-10 | 2018-12-10 | A kind of production method and mold of Resistance Welding receiving electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811501897.0A CN109365976A (en) | 2018-12-10 | 2018-12-10 | A kind of production method and mold of Resistance Welding receiving electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109365976A true CN109365976A (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811501897.0A Pending CN109365976A (en) | 2018-12-10 | 2018-12-10 | A kind of production method and mold of Resistance Welding receiving electrode |
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| Country | Link |
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| CN (1) | CN109365976A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115255821A (en) * | 2022-07-26 | 2022-11-01 | 天津七所高科技有限公司 | Electrode grinding plate and method for prolonging service life of aluminum alloy resistance welding electrode cap |
| CN115476026A (en) * | 2021-05-31 | 2022-12-16 | 一汽-大众汽车有限公司 | Resistance spot welding method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4682487A (en) * | 1983-03-23 | 1987-07-28 | Werner Kaeseler | Method for reconditioning spot welding electrodes |
| DE102010025835B3 (en) * | 2010-07-01 | 2011-10-27 | Wedo Automotive Gmbh | Device for shaping and / or mechanically removing deposits and a welding electrode for aluminum welding |
| CN104043898A (en) * | 2013-03-15 | 2014-09-17 | 通用汽车环球科技运作有限责任公司 | Welding surface design of spot welding |
| CN104084686A (en) * | 2014-06-12 | 2014-10-08 | 上海交通大学 | Electrode for restraining generation of aluminum alloy resistance spot welding crack |
| CN105234544A (en) * | 2015-09-30 | 2016-01-13 | 河南科技大学 | Resistance spot welding electrode and manufacturing method thereof |
| CN107520550A (en) * | 2016-06-16 | 2017-12-29 | 通用汽车环球科技运作有限责任公司 | For the geometry in more step electrode welding faces that aluminium is welded to steel |
-
2018
- 2018-12-10 CN CN201811501897.0A patent/CN109365976A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4682487A (en) * | 1983-03-23 | 1987-07-28 | Werner Kaeseler | Method for reconditioning spot welding electrodes |
| DE102010025835B3 (en) * | 2010-07-01 | 2011-10-27 | Wedo Automotive Gmbh | Device for shaping and / or mechanically removing deposits and a welding electrode for aluminum welding |
| CN104043898A (en) * | 2013-03-15 | 2014-09-17 | 通用汽车环球科技运作有限责任公司 | Welding surface design of spot welding |
| CN104084686A (en) * | 2014-06-12 | 2014-10-08 | 上海交通大学 | Electrode for restraining generation of aluminum alloy resistance spot welding crack |
| CN105234544A (en) * | 2015-09-30 | 2016-01-13 | 河南科技大学 | Resistance spot welding electrode and manufacturing method thereof |
| CN107520550A (en) * | 2016-06-16 | 2017-12-29 | 通用汽车环球科技运作有限责任公司 | For the geometry in more step electrode welding faces that aluminium is welded to steel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115476026A (en) * | 2021-05-31 | 2022-12-16 | 一汽-大众汽车有限公司 | Resistance spot welding method |
| CN115255821A (en) * | 2022-07-26 | 2022-11-01 | 天津七所高科技有限公司 | Electrode grinding plate and method for prolonging service life of aluminum alloy resistance welding electrode cap |
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Application publication date: 20190222 |