CN104139244A - Single-face traceless welding method for stainless steel panels - Google Patents
Single-face traceless welding method for stainless steel panels Download PDFInfo
- Publication number
- CN104139244A CN104139244A CN201410350743.1A CN201410350743A CN104139244A CN 104139244 A CN104139244 A CN 104139244A CN 201410350743 A CN201410350743 A CN 201410350743A CN 104139244 A CN104139244 A CN 104139244A
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- CN
- China
- Prior art keywords
- stainless steel
- steel faceplate
- welding
- lower floor
- faceplate
- 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.)
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/22—Spot 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
-
- 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
- B23K2101/18—Sheet panels
- B23K2101/185—Tailored blanks
-
- 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
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to the field of metal material welding engineering, in particular to a single-face traceless welding method for stainless steel panels high in strength. The method comprises the following steps that the stainless steel panels are placed on a work table; the two stainless steel panels are fixed to the required positions and clamped flatly; by adjusting laser process parameters, a welding point can penetrate through the upper layer stainless steel panel on the welding face, and the achieved melting depth, on the lower layer stainless steel panel, of the welding point is controlled to be between one third and two thirds of the thickness of the stainless steel panels. According to the method, single-face machining is achieved, by adjusting the parameters, the surface of the welded lower layer stainless steel panel can be smooth, traceless, and free from deformation, the appearance quality is ensured, and the strength of a combined structure is high; after machining is finished, follow-up polishing and wire drawing are not needed, the production efficiency is improved, the operation environment is improved, and the economic benefits are greatly increased.
Description
Technical field
The present invention relates to Metal Material Welding engineering field, especially a kind of seamless welding method of one side of stainless steel faceplate.
Background technology
The welding manner that stainless steel faceplate is conventional has arc welding, argon arc welding, electric resistance welding and Laser Welding etc.
Arc welding, argon arc welding are heated to molten state by workpiece interface in welding process, and plus-pressure does not complete the method for welding.During melting welding, thermal source, by the rapid heat fused of two workpiece interface to be welded, forms molten bath.Molten bath moves forward with thermal source, cooling rear formation continuous weld and two workpiece are connected in one.But because heat, position, the precision of welding are wayward, particularly, for the face of sheet metal component and the welding between face, easily there is the phenomenons such as burn-through, distortion in arc welding, argon arc welding, can not reach fine is welding effect.
Electric resistance welding is when electric current passes through the link of two workpiece, and this place, because the very large temperature of resistance rises, when being heated to mecystasis, is connected in one under axial compressive force effect.Because electric resistance welding need to be exerted pressure on two sides, easily there is the phenomenon of impression, weldering trace.For the more special large sheet metal component of some structures and the solder side between little sheet metal component, be not easy crimping in addition, weld very inconvenient.
General laser weld can make two sides there is no the lasing burning trace of use face of enough welding fastness or sheet metal component, gently needs polishing or rewelds, heavy product rejection.
Summary of the invention
The seamless welding method of one side of the stainless steel faceplate that the object of the invention is to provide in order to solve the deficiency of above-mentioned technology that a kind of one side is seamless, the intensity between stainless steel faceplate is high.
In order to achieve the above object, the seamless welding method of the one side of the stainless steel faceplate that the present invention is designed, its step is as follows:
(1), clean clean stainless steel faceplate is placed on workbench; The thickness of upper strata stainless steel faceplate and lower floor's stainless steel faceplate is 0.4-1.5mm;
(2), utilize mould that two stainless steel faceplates are fixed on to the required size positions of product, by the smooth clamping of stainless steel faceplate;
(3), use nitrogen as welding protection gas, with mechanical arm, drive laser head by the path of welding walking of setting, and stainless steel faceplate is carried out to laser weld, by adjusting laser technical parameters, make pad penetrate the upper strata stainless steel faceplate at solder side place, and control fusion penetration that solder joint reaches on lower floor's stainless steel faceplate between the 1/3-2/3 of surface stainless steel plate thickness; Adopt pulse laser, its laser technical parameters is: optical maser wavelength is 1.06 μ m; Current range is controlled between 200A-550A, and electric current is along with the thickness of stainless steel faceplate increases and increases; Pulsewidth is 5-8ms; Speed of welding is 20-50mm/s; Frequency is 4-8HZ; Defocusing amount is-2-+2mm.
As preferably, when the thickness of the stainless steel faceplate of the upper and lower is during at 0.4mm-1.0mm, adopt the pulse laser of 300W; When the thickness of the stainless steel faceplate of upper strata or lower floor is during at 1.0mm-1.5mm, adopt the pulse laser of 600W, in the stainless steel faceplate process of welding different-thickness, adopt the pulse laser of different capacity, can effectively reduce production cost, the control of electric current in the time of simultaneously can be conveniently to laser weld.
As optimization, in welding process, between upper strata stainless steel faceplate and lower floor's stainless steel faceplate, fit tightly, the method makes smooth gapless between stainless steel watch panel, this is because when two plate faces are because out-of-flatness is when gapped, the heat of its upper strata corrosion resistant plate melting is difficult for conducting in the corrosion resistant plate of lower floor, and it is solid to cause lower floor's corrosion resistant plate not have enough fusion penetrations to produce rosin joint or not prison welding, and required laser power is very large; After gapless between plate face, the conduction at once of the melting heat of top plate bottom is to lower floor's corrosion resistant plate, now the lower floor's corrosion resistant plate under pad is along with the beginning melting that is rapidly heated, upper strata corrosion resistant plate and lower floor's corrosion resistant plate are welded together, required size of current in the time of can reducing the stainless steel faceplate of welding same thickness, thus low-energy consumption is fallen.
As optimization, between described upper strata stainless steel faceplate and lower floor's stainless steel faceplate, by cylinder clamp, fix; The method is that two stainless steel faceplates are placed on work top, with mould fixed placement position, guarantees to reach workpiece fitted position, then uses cylinder clamp, and two corrosion resistant plates are clamped between work top and clamp, makes the smooth gapless of two plate faces; Work top and clamp should be take copper as making material, and that the clamping face of clamp and work top must guarantee is smooth, smooth, without granule foreign, otherwise can damage corrosion resistant plate face or make failure welding.
The seamless welding method of one side of the resulting stainless steel faceplate of the present invention has the following advantages:
1, this method is single-sided process, can, by regulating parameter to guarantee postwelding lower floor corrosion resistant plate smooth surface, without vestige, without distortion, guarantee presentation quality, and have the intensity of good combining structure.After processing, do not need follow-up polishing, wire drawing to process, both improved production efficiency, improved again operating environment, improved greatly economic benefit.
2, in the hot input set of laser weld, each pad only goes out a laser can complete welding, has improved the speed of welding processing, and heating and cooling speed is fast, and seam organization is fine and closely woven, and heat affected area is little, and has improved the mechanical property of pad.
3, this method technique is simple, and operation is convenient, and is contactless processing, there is no the problems such as tool loss and instrument transposing, has saved to produce and has dropped into.
Accompanying drawing explanation
Fig. 1 is welding schematic diagram of the present invention;
Fig. 2 is the schematic cross-section at solder joint place after embodiment 1 welding;
Fig. 3 be the thickness of stainless steel faceplate while being 0.6mm solder joint at the fusion penetration and the average horizontal pull-off force curve of single-point of lower floor's stainless steel faceplate;
Fig. 4 is the solder joint curve that required electric current changes with thickness of slab when the fusion penetration of lower floor's stainless steel faceplate reaches 1/2 thickness of slab.
Wherein 1-laser instrument, 2-laser, 3-upper strata stainless steel faceplate, 4-lower floor stainless steel faceplate.
The specific embodiment
Below by embodiment, the invention will be further described by reference to the accompanying drawings.
Embodiment 1:
The seamless welding method of one side of the stainless steel faceplate that as shown in Figure 1, the present embodiment is described: two stainless steel faceplates of employing are 304 stainless steel faceplates that 0.6mm is thick.
Stainless steel faceplate after the workpiece assembling required form overlay film of tearing will be gone out through bender bending, overlay on work top, two fixes position with mould, start floor push, with cylinder clamp by the smooth clamping of the solder side of two stainless steel work-pieces, clamp indention, the gap of sawtooth is welding region, cylinder pressure remains on 0.8MPA left and right.
According to the concrete size of welding position, mechanical arm controller is programmed; Welding gas is nitrogen, and throughput is 10L/min; With 300W pulse laser, weld, optical maser wavelength is 1.06 μ m; Its welding parameter section of being electric current 215A, pulsewidth 6.4ms, frequency 6Hz, defocusing amount+0.5mm, speed of welding 50mm/s.
Postwelding as shown in Figure 2, lower floor's stainless steel faceplate non-welding surface trace; Carry out after pull test, recording the horizontal pull-off force of average single-point is 65N, has reached tensile strength requirement.
As Fig. 3, from curve, can find out, solder joint fusion penetration is less than 1/3 o'clock of thickness of slab, and its breakpoint hot strength can be less than 45N, is not enough to reach the firm degree requirement of product; When fusion penetration surpass thickness of slab 2/3 time, easily make to occur impression on surface and affect outward appearance, and need larger electric current, be unfavorable for reducing production costs.
Therefore guaranteeing, under the required structural strength of product function, not destroy again the aesthetic property of product surface, recommend solder joint to guarantee 1/2 left and right at thickness of slab at the fusion penetration of lower floor's stainless steel faceplate.Section curent change when the stainless steel faceplate of different thicknesss of slab will reach 1/2 fusion penetration is similar to conic section as shown in Figure 4, when actual production, can require to do corresponding fine setting according to product technology, and thickness of slab test specification is between 0.4mm-1.5mm.
Embodiment 2:
By 0.6mm, change two stainless steel faceplates into plate that 0.8mm is thick, power-off stream is adjusted to 260A, other are with embodiment 1; Postwelding lower floor stainless steel faceplate non-welding surface trace.Carry out after pull test, recording the horizontal pull-off force of average single-point is 86N, has reached tensile strength requirement.
Embodiment 3:
By 0.6mm, change two stainless steel faceplates into plate that 1.0mm is thick, power-off stream is adjusted to 325A, the laser instrument that is 600W with power welding, other are with embodiment 1.Postwelding lower floor stainless steel faceplate non-welding surface trace.Carry out after pull test, recording the horizontal pull-off force of average single-point is 112N, has reached tensile strength requirement.
Embodiment 4:
By 0.6mm, change two stainless steel faceplates into plate that 0.4mm is thick, power-off stream is adjusted to 200A, other are with embodiment 1; Postwelding lower floor stainless steel faceplate non-welding surface trace.Carry out after pull test, recording the horizontal pull-off force of average single-point is 48N, has reached tensile strength requirement.
Embodiment 5:
By 0.6mm, change two stainless steel faceplates into plate that 1.5mm is thick, power-off stream is adjusted to 500A, other are with embodiment 1; Postwelding lower floor stainless steel faceplate non-welding surface trace.Carry out after pull test, recording the horizontal pull-off force of average single-point is 135N, has reached tensile strength requirement.
Claims (5)
1. the seamless welding method of the one side of stainless steel faceplate, is characterized in that: its step is as follows:
(1), clean clean stainless steel faceplate is placed on workbench; The thickness of upper strata stainless steel faceplate and lower floor's stainless steel faceplate is 0.4-1.5mm;
(2), utilize mould that two stainless steel faceplates are fixed on to the required size positions of product, by the smooth clamping of stainless steel faceplate;
(3), use nitrogen as welding protection gas, with mechanical arm, drive laser head by the path of welding walking of setting, and stainless steel faceplate is carried out to laser weld, by adjusting laser technical parameters, make pad penetrate the upper strata stainless steel faceplate at solder side place, and control fusion penetration that solder joint reaches on lower floor's stainless steel faceplate between the 1/3-2/3 of surface stainless steel plate thickness; Adopt pulse laser, its laser technical parameters is: optical maser wavelength is 1.06 μ m; Current range is controlled between 200A-550A, and electric current is along with the thickness of stainless steel faceplate increases and increases; Pulsewidth is 5-8ms; Speed of welding is 20-50mm/s; Frequency is 4-8HZ; Defocusing amount is-2-+2mm.
2. the seamless welding method of the one side of a kind of stainless steel faceplate according to claim 1, is characterized in that: when the thickness of the stainless steel faceplate of the upper and lower is during at 0.4mm-1.0mm, adopt the pulse laser of 300W; When the thickness of the stainless steel faceplate of upper strata or lower floor is during at 1.0mm-1.5mm, adopt the pulse laser of 600W.
3. the seamless welding method of the one side of a kind of stainless steel faceplate according to claim 1 and 2, is characterized in that: in welding process, between upper strata stainless steel faceplate and lower floor's stainless steel faceplate, fit tightly.
4. the seamless welding method of the one side of a kind of stainless steel faceplate according to claim 1 and 2, is characterized in that: between described upper strata stainless steel faceplate and lower floor's stainless steel faceplate, by cylinder clamp, fix.
5. the seamless welding method of the one side of a kind of stainless steel faceplate according to claim 3, is characterized in that: between described upper strata stainless steel faceplate and lower floor's stainless steel faceplate, by cylinder clamp, fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350743.1A CN104139244A (en) | 2014-07-23 | 2014-07-23 | Single-face traceless welding method for stainless steel panels |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350743.1A CN104139244A (en) | 2014-07-23 | 2014-07-23 | Single-face traceless welding method for stainless steel panels |
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| CN104139244A true CN104139244A (en) | 2014-11-12 |
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| CN201410350743.1A Pending CN104139244A (en) | 2014-07-23 | 2014-07-23 | Single-face traceless welding method for stainless steel panels |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588878A (en) * | 2014-12-15 | 2015-05-06 | 苏州傲鹏机械有限公司 | Laser welding method for stainless steel panel |
| CN108296636A (en) * | 2018-01-18 | 2018-07-20 | 上海业识科技有限公司 | The seamless no color differnece welding procedure of surface stainless steel plate surface based on pulse laser |
| CN108311787A (en) * | 2018-01-18 | 2018-07-24 | 上海业识科技有限公司 | Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing |
| CN110625253A (en) * | 2019-07-06 | 2019-12-31 | 佛山市众慧焊接智能技术有限公司 | Traceless welding method for elevator panel |
| CN112834337A (en) * | 2020-12-31 | 2021-05-25 | 联合汽车电子有限公司 | Welding quality detection control method for cross welding of carbon brush wire and choke coil |
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| CN103143838A (en) * | 2013-02-22 | 2013-06-12 | 佛山市利迅达机器人系统有限公司 | Seamless hook welding process for front side of water tank |
| CN103203559A (en) * | 2013-04-28 | 2013-07-17 | 陕西建工集团设备安装工程有限公司 | Automatic traceless fusion welding technology of thin-wall stainless steel clean pipeline |
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| JPH09225675A (en) * | 1996-02-22 | 1997-09-02 | Chiyoda Corp | Repairing method for corrosion resistant metal layer |
| CN201900377U (en) * | 2010-12-28 | 2011-07-20 | 上海英伦帝华汽车部件有限公司 | Trace-free spot welding device for white automobile body |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588878A (en) * | 2014-12-15 | 2015-05-06 | 苏州傲鹏机械有限公司 | Laser welding method for stainless steel panel |
| CN108296636A (en) * | 2018-01-18 | 2018-07-20 | 上海业识科技有限公司 | The seamless no color differnece welding procedure of surface stainless steel plate surface based on pulse laser |
| CN108311787A (en) * | 2018-01-18 | 2018-07-24 | 上海业识科技有限公司 | Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing |
| CN108296636B (en) * | 2018-01-18 | 2019-09-24 | 上海业识科技有限公司 | The seamless no color differnece welding procedure of surface stainless steel plate surface based on pulse laser |
| CN110625253A (en) * | 2019-07-06 | 2019-12-31 | 佛山市众慧焊接智能技术有限公司 | Traceless welding method for elevator panel |
| CN112834337A (en) * | 2020-12-31 | 2021-05-25 | 联合汽车电子有限公司 | Welding quality detection control method for cross welding of carbon brush wire and choke coil |
| CN112834337B (en) * | 2020-12-31 | 2024-04-26 | 联合汽车电子有限公司 | Welding quality detection control method for cross welding of carbon brush lead and choke coil |
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Application publication date: 20141112 |