CN109396629B - Device and method for removing aluminum or aluminum alloy coating on surface of steel plate - Google Patents
Device and method for removing aluminum or aluminum alloy coating on surface of steel plate Download PDFInfo
- Publication number
- CN109396629B CN109396629B CN201811120522.XA CN201811120522A CN109396629B CN 109396629 B CN109396629 B CN 109396629B CN 201811120522 A CN201811120522 A CN 201811120522A CN 109396629 B CN109396629 B CN 109396629B
- Authority
- CN
- China
- Prior art keywords
- steel plate
- roller
- pressing wheel
- upper roller
- lower roller
- 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.)
- Active
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
- B23K11/22—Severing by resistance heating
-
- 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
Abstract
The invention discloses a device and a method for removing aluminum or aluminum alloy coatings on the surfaces of steel plates, wherein the device comprises an upper roller (1), a lower roller (2), a conductor (3), a power supply (4), a steel plate (5), coatings (6) and a pressurizing device (7), wherein the upper roller (1) and the lower roller (2) are respectively positioned at the upper side and the lower side of the steel plate (5) and are respectively contacted with the coatings (6) on the upper surface and the lower surface of the steel plate (5); the contact points of the upper roller pressing wheel (1) and the lower roller pressing wheel (2) and the plating layer (6) are positioned on the circle center connecting line of the upper roller pressing wheel (1) and the lower roller pressing wheel (2); the upper roller pressing wheel (1) and the lower roller pressing wheel (2) are respectively connected with a pressurizing device (7); the upper roller pressing wheel (1) and the lower roller pressing wheel (2) are respectively connected with a power supply (4) through electric conductors (3). According to the method provided by the invention, the coating of the area to be processed on the surface of the steel plate can be effectively removed, the cost is low, the removing effect is good, and the gradual change effect of a complete removing area, a partial removing area and the like is achieved.
Description
Technical Field
The invention relates to a device and a method for removing an aluminum or aluminum alloy coating on the surface of a steel plate, belonging to the technical field of steel plates with aluminum or aluminum alloy coatings.
Background
Due to environmental protection and energy saving requirements, the light weight of automobiles has become a trend of the development of automobiles in the world. The light weight of the automobile means that the quality of the automobile is reduced as much as possible on the premise of ensuring the collision safety and the vehicle performance, thereby improving the dynamic property of the automobile, reducing the fuel consumption and reducing the exhaust pollution.
High strength and thinning are important means for automobile light weight, and in recent years, the laser tailor-welded blank of the hot forming steel is more and more widely applied to automobile body structural parts. Hot formed steels are divided into two categories: one is a non-coated hot formed steel and one is a coated hot formed steel. After the hot forming of the non-plated hot formed steel, shot blasting treatment is required for the follow-up high-temperature oxidation; the hot forming steel with the coating does not need shot blasting treatment and is widely applied. Currently, the commonly used hot formed steel coatings contain aluminum or aluminum alloys in large amounts. According to the design requirement of a vehicle body, part of the hot forming steel with aluminum or aluminum alloy is made into a tailor-welded blank for use after laser tailor-welding.
The laser tailor-welded blank is formed by connecting materials with different materials and thicknesses together in a splicing mode by adopting laser as a heat source and then performing integral stamping. In order to ensure the processing precision, the edge of the steel plate before the laser tailor-welding needs to be subjected to fine shearing processing. The laser tailor-welded blank is widely applied to the automobile manufacturing industry, and the laser tailor-welded blank process not only can reduce the manufacturing cost, the logistics cost, the weight, the assembly tolerance, the oil consumption and the rejection rate of the whole automobile, but also can reduce the number of peripheral reinforcing parts, simplify the assembly steps, and simultaneously improve the collision capacity, the stamping forming rate and the corrosion resistance of the automobile. In addition, the use of sealant is avoided, so that the environment-friendly effect is better. But since aluminum or aluminum alloys have a significant effect on the weld quality, they must be removed prior to welding. At present, methods for removing the coating comprise laser cleaning, mechanical scraping and the like, and all the methods have the problems of high cost, difficulty in controlling removal precision and the like.
Disclosure of Invention
The invention aims to provide a device and a method for removing an aluminum or aluminum alloy coating on the surface of a steel plate, which can solve the problem of welding the steel plate with the aluminum or aluminum alloy coating. According to the device and the method for removing the aluminum or aluminum alloy coating on the surface of the steel plate, the coating on the area to be processed on the surface of the steel plate can be effectively removed, and the device and the method have the advantages of stable quality, low cost, easiness in control and the like.
On one hand, the invention relates to a device for removing aluminum or aluminum alloy coatings on the surfaces of steel plates, which comprises an upper roller 1, a lower roller 2, a conductor 3, a power supply 4, a steel plate 5, a coating 6 and a pressurizing device 7. The upper roller pressing wheel 1 and the lower roller pressing wheel 2 are respectively positioned at the upper side and the lower side of the steel plate 5 and are respectively contacted with the plating layers 6 on the upper surface and the lower surface of the steel plate 5; the contact points of the upper roller 1 and the lower roller 2 with the plating layer 6 are both positioned on the circle center connecting line of the upper roller 1 and the lower roller 2; the upper roller pressing wheel 1 and the lower roller pressing wheel 2 are respectively connected with the pressurizing device 7; the upper roller 1 and the lower roller 2 are respectively connected with the power supply 4 through the electric conductors 3.
In another aspect, the present invention relates to a method for removing an aluminum or aluminum alloy coating on a surface of a steel sheet, comprising:
1) placing a steel plate 5 between the upper roller pressing wheel 1 and the lower roller pressing wheel 2;
2) under the action of a pressurizing device 7, the upper roller 1 and the lower roller 2 move oppositely, are respectively contacted with the upper surface coating 6 and the lower surface coating 6 of the steel plate 5, and apply pressure N;
3) the power supply 4 is switched on, and the current I flows through the electric conductor 3, the upper roller press wheel 1, the upper surface coating 6, the steel plate 5, the lower surface coating 6 and the lower roller press wheel 2 to generate resistance heat; the plating layer 6 is softened or melted under the effect of the resistance heat; under the action of the pressure N, the plating layer 6 which is in contact with the upper roller 1 and the lower roller is extruded;
4) the upper roller wheel 1 and the lower roller wheel 2 rotate reversely, so that the steel plate 5 and the roller wheels move relatively, the linear speed of the relative movement is V, and the surface coating 6 of the steel plate 5 passed by the roller wheels is removed;
5) under the action of the pressurizing device 7, the upper roller wheel 1 and the lower roller wheel 2 are lifted, and the removing process is finished.
Detailed description of the invention
The invention provides a device for removing an aluminum or aluminum alloy coating on the surface of a steel plate, which comprises an upper roller 1, a lower roller 2, a conductor 3, a power supply 4, a steel plate 5, a coating 6 and a pressurizing device 7. The upper roller pressing wheel 1 and the lower roller pressing wheel 2 are respectively positioned at the upper side and the lower side of the steel plate 5 and are respectively contacted with the plating layers 6 on the upper surface and the lower surface of the steel plate 5; the contact points of the upper roller 1 and the lower roller 2 with the plating layer 6 are both positioned on the circle center connecting line of the upper roller 1 and the lower roller 2; the upper roller pressing wheel 1 and the lower roller pressing wheel 2 are respectively connected with the pressurizing device 7; the upper roller 1 and the lower roller 2 are respectively connected with the power supply 4 through the electric conductors 3.
According to the device of the invention, the diameters of the upper roller 1 and the lower roller 2 are the same.
According to the device, the edges of the upper roller wheel 1 and the lower roller wheel 2 are arc-shaped end surfaces, and the chord height of the arc is larger than the thickness of the plating layer 6 and smaller than one third of the thickness of the roller wheel.
According to the device, the thickness of the steel plate 5 is 0.5-3 mm.
According to the device, the steel plate comprises the following components in percentage by mass: 0.1 to 0.9% of C, 0.05 to 1% of Si, 0.4 to 6% of Mn, 0.01 to 4% of Cr, 0.6% of Ti, 0.4% of Al, 0.1% of S, 0.2% of P, 0.0005 to 0.05% of B; the balance of Fe and inevitable impurities.
According to the device of the invention, the coating 6 is aluminium or an aluminium alloy.
In another aspect, the present invention provides a method for removing an aluminum or aluminum alloy plating layer on a surface of a steel sheet, including:
1) placing a steel plate 5 between the upper roller pressing wheel 1 and the lower roller pressing wheel 2;
2) under the action of a pressurizing device 7, the upper roller 1 and the lower roller 2 move oppositely, are respectively contacted with the upper surface coating 6 and the lower surface coating 6 of the steel plate 5, and apply pressure N;
3) the power supply 4 is switched on, and the current I flows through the electric conductor 3, the upper roller press wheel 1, the upper surface coating 6, the steel plate 5, the lower surface coating 6 and the lower roller press wheel 2 to generate resistance heat; the plating layer 6 is softened or melted under the effect of the resistance heat; under the action of the pressure N, the plating layer 6 which is in contact with the upper roller 1 and the lower roller is extruded;
4) the upper roller wheel 1 and the lower roller wheel 2 rotate reversely, so that the steel plate 5 and the roller wheels move relatively, the linear speed of the relative movement is V, and the surface coating 6 of the steel plate 5 passed by the roller wheels is removed;
5) under the action of the pressurizing device 7, the upper roller wheel 1 and the lower roller wheel 2 are lifted, and the removing process is finished.
According to the method, the pressure N is 1-30 kN.
According to the method, the current I is 1-200 kA.
According to the method, the linear speed V of the relative motion is 0.5-50 m/min.
According to the method, the path of the removed surface of the steel plate 5, which is passed by the rolling wheel, is from the center to two sides, and the path is a complete removal area, a partial removal area, a thickening area and an original coating area in sequence; the completely removed area can be used for subsequent processing, and the residual coating 6 in the partially removed area can still provide protection for the steel plate 5.
According to the subsequent processing requirements, the steel plate can be sheared along the center of the rolling wheel path, the edge part of the sheared steel plate is a completely removed area, and the processing such as tailor welding can be carried out.
Compared with the method for removing the coating in the prior art, such as laser cleaning, mechanical scraping and the like, the device and the method for removing the aluminum or aluminum alloy coating on the surface of the steel plate can effectively remove the coating in the area to be processed on the surface of the steel plate, have high quality stability, low cost and good removal effect, and have gradual change effects of a complete removal area, a partial removal area and the like.
Drawings
FIG. 1 is a schematic view of a device for removing aluminum or aluminum alloy coatings on the surfaces of steel plates, wherein the device comprises a 1-upper roller, a 2-lower roller, a 3-conductor, a 4-power supply, a 5-steel plate, a 6-coating and a 7-pressurizing device.
Fig. 2 is a partial schematic view perpendicular to the rolling direction. Wherein 1-upper roll pinch roller, 2-lower roll pinch roller, 5-steel plate, 6-plating layer; an A-complete removal region, a B-partial removal region, a C-thickening region, and a D-original plating region.
Fig. 3 is a schematic view of the edge portion of the steel sheet after removal and shearing, wherein 5-steel sheet, 6-plated.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and examples, and the advantages and various effects of the present invention will be more clearly apparent therefrom. It will be understood by those skilled in the art that these specific embodiments and examples are for the purpose of illustrating the invention and are not to be construed as limiting the invention.
Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control.
EXAMPLE 1 apparatus for removing aluminum or aluminum alloy coating on surface of Steel sheet
A device for removing aluminum or aluminum alloy coatings on the surfaces of steel plates is shown in figure 1 and comprises an upper roller 1, a lower roller 2, a conductor 3, a power supply 4, a steel plate 5, a coating 6 and a pressurizing device 7. The upper roller pressing wheel 1 and the lower roller pressing wheel 2 are respectively positioned at the upper side and the lower side of the steel plate 5 and are respectively contacted with the plating layers 6 on the upper surface and the lower surface of the steel plate 5; the contact points of the upper roller pressing wheel 1 and the lower roller pressing wheel 2 and the plating layer 6 are all positioned on the circle center connecting line of the upper roller pressing wheel 1 and the lower roller pressing wheel 2; the upper roller pressing wheel 1 and the lower roller pressing wheel 2 are respectively connected with a pressurizing device 7; the upper roller 1 and the lower roller 2 are respectively connected with a power supply 4 through electric conductors 3.
The diameters of the upper roller 1 and the lower roller 2 are both 200mm, and the widths are both 14 mm; the end surfaces of the edges of the upper roller 1 and the lower roller 2 are arc-shaped, the diameter of the arc is 100mm, and the corresponding chord height is 245 mu m; the material is chromium pickaxe copper. The pressurizing device 7 is a hydraulic device; the power supply 4 is a medium frequency direct current power supply.
The steel plate 5 is hot forming steel 22MnB5 with the thickness of 1.5 mm; the Al content of the surface coating 6 is 90 percent, and the thickness of the surface coating 6 of the steel plate 5 is 8 mu m.
EXAMPLE 2 method for removing aluminum or aluminum alloy coating on surface of Steel sheet
Placing the steel plate 5 between the upper roller pressing wheel 1 and the lower roller pressing wheel 2; under the action of a pressurizing device 7, the upper roller 1 and the lower roller 2 move oppositely, are respectively contacted with the upper surface coating 6 and the lower surface coating 6 of the steel plate 5, and apply pressure of 10 KN; a power supply 4 is switched on, and 100kA of current flows through the electric conductor 3, the upper roller press wheel 1, the upper surface coating 6, the steel plate 4, the lower surface coating 6 and the lower roller press wheel 2 to generate resistance heat; the plating layer 6 is softened or melted under the action of resistance heat; under the action of the pressure N, the plating layer 6 in contact with the upper roller pressing wheel 1 and the lower roller pressing wheel is extruded out to expose the steel plate; the upper roller pressing wheel 1 and the lower roller pressing wheel 2 rotate reversely, the steel plate 5 and the roller pressing wheels move relatively, the linear speed of the relative movement is 7m/min, and the surface coating of the steel plate 5 passed by the roller pressing wheels is removed; under the action of the pressurizing device 7, the upper roller wheel 1 and the lower roller wheel 2 are lifted, and the removing process is finished.
As shown in fig. 2, the path of the removed surface of the steel plate 5, through which the rolling wheel passes, is, from the center to both sides, a completely removed region (the surface corresponding to the region a), a partially removed region (the surface corresponding to the region B), a thickened region (the surface corresponding to the region C), and an original plating region (the surface corresponding to the region D) in this order; the completely removed area can be used for subsequent processing, and the residual coating 6 in the partially removed area can still provide protection for the steel plate 5.
After the surface coating 6 of the steel sheet 5 is removed, the steel sheet is sheared along the center of the rolling wheel path by a plate shearing machine, and the edge portion of the sheared steel sheet is a completely removed area, as shown in fig. 3. And (3) performing laser tailor-welding on the two steel plates 5 with the plating layers 6 removed and sheared to obtain a welding joint with excellent quality.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. The device for removing the aluminum or aluminum alloy coating on the surface of the steel plate is characterized by comprising an upper roller (1), a lower roller (2), an electric conductor (3), a power supply (4), the steel plate (5), a coating (6) and a pressurizing device (7), wherein the upper roller (1) and the lower roller (2) are respectively positioned at the upper side and the lower side of the steel plate (5) and are respectively contacted with the coating (6) on the upper surface and the lower surface of the steel plate (5); the contact points of the upper roller (1) and the lower roller (2) with the plating layer (6) are both positioned on the circle center connecting line of the upper roller (1) and the lower roller (2); the upper roller (1) and the lower roller (2) are respectively connected with the pressurizing device (7); the upper roller pressing wheel (1) and the lower roller pressing wheel (2) are respectively connected with the power supply (4) through the electric conductor (3);
the diameters of the upper roller pressing wheel (1) and the lower roller pressing wheel (2) are the same;
the edges of the upper roller pressing wheel (1) and the lower roller pressing wheel (2) are arc-shaped end surfaces, and the chord height of the arc is greater than the thickness of the plating layer (6) and less than one third of the thickness of the roller pressing wheel;
the method for removing the aluminum or aluminum alloy coating on the surface of the steel plate comprises the following steps:
1) placing a steel plate (5) between the upper roller pressing wheel (1) and the lower roller pressing wheel (2);
2) under the action of a pressurizing device (7), the upper roller (1) and the lower roller (2) move oppositely, are respectively contacted with the upper surface coating (6) and the lower surface coating (6) of the steel plate (5), and apply pressure N;
3) the power supply (4) is switched on, and the current I flows through the electric conductor (3), the upper roller (1), the upper surface coating (6), the steel plate (5), the lower surface coating (6) and the lower roller (2) to generate resistance heat; the coating (6) is softened or melted under the action of the resistance heat; under the action of the pressure N, a plating layer (6) which is in contact with the upper roller (1) and the lower roller is extruded;
4) the upper roller (1) and the lower roller (2) rotate reversely, so that the steel plate (5) and the roller move relatively, the linear speed of the relative movement is V, and a surface coating (6) of the steel plate (5) passed by the roller is removed;
5) under the action of the pressurizing device (7), the upper roller (1) and the lower roller (2) are lifted, and the removing process is finished;
the pressure N is 1-30 kN; the current I is 1-200 kA; the linear speed V of the relative motion is 0.5-50 m/min.
2. The device according to claim 1, characterized in that the thickness of the steel plate (5) is 0.5 to 3 mm.
3. The apparatus of claim 1, wherein the steel plate comprises the following components in percentage by mass: 0.1 to 0.9% of C, 0.05 to 1% of Si, 0.4 to 6% of Mn, 0.01 to 4% of Cr, 0.6% of Ti, 0.4% of Al, 0.1% of S, 0.2% of P, 0.0005 to 0.05% of B; the balance of Fe and inevitable impurities.
4. The device according to claim 1, characterized in that the coating (6) is aluminium or an aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811120522.XA CN109396629B (en) | 2018-09-26 | 2018-09-26 | Device and method for removing aluminum or aluminum alloy coating on surface of steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811120522.XA CN109396629B (en) | 2018-09-26 | 2018-09-26 | Device and method for removing aluminum or aluminum alloy coating on surface of steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109396629A CN109396629A (en) | 2019-03-01 |
| CN109396629B true CN109396629B (en) | 2021-03-23 |
Family
ID=65466364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811120522.XA Active CN109396629B (en) | 2018-09-26 | 2018-09-26 | Device and method for removing aluminum or aluminum alloy coating on surface of steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109396629B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2254188A5 (en) * | 1973-12-11 | 1975-07-04 | Arsi Laboratoires | Method of cleaning printed circuit panels - involves heating and suddenly releasing air in holes to expel solder |
| CN1097658A (en) * | 1993-04-08 | 1995-01-25 | Ntt苔莉加株式会社 | The removal burr and the scavenge unit of plastic clip and so on article |
| CN204135852U (en) * | 2014-08-27 | 2015-02-04 | 上海东新冶金技术工程有限公司 | For the brush rolled tin machine of coating containing the Plate Production of zinc |
| CN104600622A (en) * | 2014-12-20 | 2015-05-06 | 张萍 | Intelligent barrier cleaning device for high-voltage power transmission line of power grid |
| CN105479647A (en) * | 2015-09-10 | 2016-04-13 | 湖州格尔泰斯环保技术有限公司 | Polytetrafluoroethylene regenerated material strap hot pressing setter |
| CN107931983A (en) * | 2017-11-16 | 2018-04-20 | 重庆鸽牌电线电缆有限公司 | A kind of processing technology on copper bar surface |
| CN107971878A (en) * | 2017-11-24 | 2018-05-01 | 宁波江北清锐汽车零部件有限公司 | Casting grinding dust-extraction unit |
-
2018
- 2018-09-26 CN CN201811120522.XA patent/CN109396629B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2254188A5 (en) * | 1973-12-11 | 1975-07-04 | Arsi Laboratoires | Method of cleaning printed circuit panels - involves heating and suddenly releasing air in holes to expel solder |
| CN1097658A (en) * | 1993-04-08 | 1995-01-25 | Ntt苔莉加株式会社 | The removal burr and the scavenge unit of plastic clip and so on article |
| CN204135852U (en) * | 2014-08-27 | 2015-02-04 | 上海东新冶金技术工程有限公司 | For the brush rolled tin machine of coating containing the Plate Production of zinc |
| CN104600622A (en) * | 2014-12-20 | 2015-05-06 | 张萍 | Intelligent barrier cleaning device for high-voltage power transmission line of power grid |
| CN105479647A (en) * | 2015-09-10 | 2016-04-13 | 湖州格尔泰斯环保技术有限公司 | Polytetrafluoroethylene regenerated material strap hot pressing setter |
| CN107931983A (en) * | 2017-11-16 | 2018-04-20 | 重庆鸽牌电线电缆有限公司 | A kind of processing technology on copper bar surface |
| CN107971878A (en) * | 2017-11-24 | 2018-05-01 | 宁波江北清锐汽车零部件有限公司 | Casting grinding dust-extraction unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109396629A (en) | 2019-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102602072B (en) | Resistance spot welding manufacture and method of forming same | |
| CN107350613B (en) | Resistance spot welding process for steel workpiece with coating layer | |
| AU596816B2 (en) | Resistance welding of aluminium | |
| CN109434384B (en) | Preparation method and device of coated steel plate and hot stamping method | |
| CN110666329B (en) | Method for improving corrosion resistance of welded joint of aluminum plate and steel plate | |
| CN108025387A (en) | Spot welding method | |
| CN204818436U (en) | Welding seam synchronous thermal treatment laser -beam welding machine construct | |
| CN102935550A (en) | Flash welding forming method of iron-based superalloy thin-wall ring member | |
| CN109396629B (en) | Device and method for removing aluminum or aluminum alloy coating on surface of steel plate | |
| CN1312176A (en) | Production process of stainless steel wheel for motor vehicle | |
| CN113857636A (en) | Resistance spot welding process for 1800 MPa-level ultrahigh-strength hot-formed steel plate | |
| CN102935552B (en) | Flash welding forming method of constructional steel thin-wall ring member | |
| CN102962570B (en) | Flash welding forming method of bearing steel thin-wall ring member | |
| CN102962569B (en) | Flash welding shaping method for Alpha-phase titanium alloy thin-walled ring | |
| CN102935551B (en) | Flash welding forming method of aluminum alloy thin-wall ring member | |
| CN113118630A (en) | Preparation method of laser tailor-welded blank with different thicknesses | |
| CN113118629A (en) | Preparation method of poor-intensity laser tailor-welded blank | |
| DE102016205943A1 (en) | Apparatus and method for manufacturing metallic components | |
| CN102962568B (en) | Flash welding shaping method for Beta-phase titanium alloy thin-walled ring | |
| CN106425020B (en) | A kind of composition backing and its application in magnesium/aluminum dissimilar metal welding | |
| JPS6056490A (en) | Production of welded can body | |
| CN212070759U (en) | Electrode wheel for resistance seam welding | |
| CN102935553B (en) | Flash welding forming method of stainless steel thin-wall ring member | |
| CN210083213U (en) | Side cover plate of railway rail vehicle | |
| CN107234362A (en) | A kind of steel aluminum dissimilar metal solder and its Joining Technology |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |