CN108311787A - Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing - Google Patents
Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing Download PDFInfo
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- CN108311787A CN108311787A CN201810050628.0A CN201810050628A CN108311787A CN 108311787 A CN108311787 A CN 108311787A CN 201810050628 A CN201810050628 A CN 201810050628A CN 108311787 A CN108311787 A CN 108311787A
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- stainless steel
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Classifications
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- 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
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Optics & Photonics (AREA)
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- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention relates to laser weldings, more particularly to the seamless no color differnece welding procedure of the surface stainless steel plate surface based on continuous laser, quasi-continuous lasing.Reinforcing plate is soldered to the back side of stainless steel faceplate by using laser welding by it, plays the role of reinforcing rib, improves the intensity of stainless steel faceplate.The surface of stainless steel faceplate is not penetrated by controlling solder joint so that the seamless mark of surface stainless steel plate surface after welding；And there is aberration after avoiding welding in the thermal accumlation for controlling pad；To ensure that the appearance of stainless steel faceplate.And this programme provides the mode of 2 kinds of continuous lasers welding, that welds is efficient, and entire welding process flow is simple, quick, and weld strength is good, and the tensile strength of stainless steel faceplate and reinforcing plate after welding reaches 100kg/cm2Left and right, it is not vulnerable.
Description
【Technical field】
The present invention relates to laser weldings, more particularly to based on continuous laser, quasi-continuous lasing surface stainless steel plate surface without
Trace no color differnece welding procedure.
【Background technology】
In the prior art, in order to reduce steel weight, meet the intensity requirement of stainless steel faceplate again, can take in face
The method of connection reinforcement gusset after plate.Such as in elevator industry, in order to reduce the material input cost and operating weight of car
(cost), it is general using non-stainless steel reinforcing plate and stainless steel faceplate are carried out it is be bonded by the way of be attached, it is stainless to improve
The intensity of steel facing.For above method, there are the following problems：
Failure is easy during long-time service to fall off, easily cause accident, and for reinforcing by the way of bonding
The selection of plate also has larger limitation, and is not durable.
Certainly, best connection type is welding.But for car, the surface aesthetics of stainless steel faceplate are also one
The technical indicator of a indispensability.At home, many enterprises, scientific research institution attempt various welding methods in the world, still, due to
After welding the surface of stainless steel faceplate there are more apparent weld mark and apparent aberration, influence appearance and cannot apply.
After for many years, also do not solve.
【Invention content】
To solve the problems, such as that stainless steel faceplate welding in the prior art can leave aberration or trace on surface, the present invention provides
The seamless no color differnece welding procedure of surface stainless steel plate surface based on continuous laser, quasi-continuous lasing.
The present invention is achieved by the following technical solutions：
Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing, includes the following steps,
A, stainless steel faceplate is fixed on fixture, is placed into surface stainless steel back by welded plate is stacked, and pass through
Fixture is by stainless steel faceplate and welds board clamping；
B, welded plate is opposite with laser welding camera lens, it sets parameter and carries out continuous laser or quasi-continuous lasing welding,
So that solder joint is penetrated the welded plate and controls fusion penetration of the solder joint on stainless steel faceplate no more than the stainless steel faceplate
Thickness；
C, fixture is unclamped, stainless steel faceplate is removed.
Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing as described above, in the step b
It is also passed through inert protective gas in the welding process.
Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing as described above, in the step b
The parameter being arranged when using continuous laser includes the power P of laser welding head and the movement speed V of laser welding head.
Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing as described above, the Laser Welding
The power P of head is 300W to 3000W.
Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing as described above, the Laser Welding
The movement speed V of head is 2mm/s to 300mm/s.
Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing as described above, in the step b
The parameter being arranged when using quasi-continuous lasing includes power P 1, the movement speed V1 of laser welding head, the pulse energy of laser welding head
And pulse frequency and pulse width.
The seamless no color differnece welding procedure of surface stainless steel plate surface as described above based on quasi-continuous lasing, the pulse energy
The maximum value of amount is 100J, and the pulse frequency is 50HZ to 10000HZ.
The seamless no color differnece welding procedure of surface stainless steel plate surface as described above based on quasi-continuous lasing, the pulse are wide
Degree is 0.05ms to 50ms.
Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing as described above, the Laser Welding
The power P 1 of head is 300W to 3000W, and the movement speed V1 of the laser welding head is 2mm/s to 00mm/s.
Stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing as described above, the welded plate
Thickness for galvanized sheet, the galvanized sheet is 0.8mm to 2mm.
Compared with prior art, the present invention has the following advantages：
1, the present invention provides the seamless no color differnece Welders of surface stainless steel plate surface based on continuous laser, quasi-continuous lasing
Reinforcing plate is soldered to the back side of stainless steel faceplate by using laser welding, plays the role of reinforcing rib, improved not by skill
The intensity of rust steel facing.The surface of stainless steel faceplate is not penetrated by controlling solder joint so that the surface stainless steel plate surface after welding
Without trace；And there is aberration after avoiding welding in the thermal accumlation for controlling pad；To ensure that the outer of stainless steel faceplate
It sees.And this programme provides the mode of 2 kinds of continuous lasers welding, that welds is efficient, and entire welding process flow is simple, fast
Speed, and weld strength is good, and the tensile strength of stainless steel faceplate and reinforcing plate after welding reaches 100kg/cm2Left and right, is not easy
Failure.
【Description of the drawings】
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the signal of the seamless no color differnece welding procedure of surface stainless steel plate surface based on continuous laser, quasi-continuous lasing
Figure.
【Specific implementation mode】
In order to make the technical problems, technical solutions and beneficial effects solved by the present invention be more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
The present invention is achieved by the following technical solutions：
As shown in Figure 1, the seamless no color differnece welding procedure of surface stainless steel plate surface based on continuous laser, quasi-continuous lasing,
Include the following steps, a, stainless steel faceplate is fixed on fixture, is placed into surface stainless steel back by welded plate is stacked, and
By stainless steel faceplate and board clamping is welded by fixture；B, welded plate is opposite with laser welding camera lens, set parameter progress
Continuous laser or quasi-continuous lasing welding make solder joint penetrate the welded plate and control melting depth of the solder joint on stainless steel faceplate
Thickness of the degree no more than the stainless steel faceplate；C, fixture is unclamped, stainless steel faceplate is removed.The present invention provides swashed based on continuous
The seamless no color differnece welding procedure of surface stainless steel plate surface of light, quasi-continuous lasing, welds reinforcing plate by using laser welding
It is connected to the back side of stainless steel faceplate, plays the role of reinforcing rib, improves the intensity of stainless steel faceplate.It is not worn by controlling solder joint
The surface of saturating stainless steel faceplate so that the seamless mark of surface stainless steel plate surface after welding；And the thermal accumlation of pad is controlled,
There is aberration after avoiding welding；To ensure that the appearance of stainless steel faceplate.And this programme provides the side of 2 kinds of continuous lasers welding
Formula, that welds is efficient, and entire welding process flow is simple, quick, and weld strength is good, the stainless steel faceplate after welding
Reach 100kg/cm with the tensile strength of reinforcing plate2Left and right, it is not vulnerable.
The present invention provides the scheme of two kinds of continuous lasers welding, a kind of to use continuous laser, another kind is using quasi-continuous
Laser；Continuous wave laser has stable working condition, is stable state.The population and intracavitary irradiation of each energy level in continuous wave laser
Field all has Stable distritation.Its work characteristics is excitation and the output of corresponding laser of operation material, can be longer at one section
It is persistently carried out in a continuous manner in time range；And quasi-continuous lasing is also known as Long Pulse LASER, generates the pulse of ms magnitudes, accounts for
Sky is than being 10%.This makes pulsed light (quasi-continuous lasing) have the peak power than high ten times of continuous light or more, for welding
Deng application for it is highly beneficial.
In addition, being also passed through inert protective gas in the welding process in the step b.For example it is passed through nitrogen, carbon dioxide
Gas or both mixed gas does not aoxidize when can protect welding, improves welding quality.
Moreover, using optical fiber laser as continuous laser or the output equipment of quasi-continuous lasing in stepb, optical fiber is logical
It is often the glass solid fibrous pulled into as host material using SiO2, is mainly widely used in optical-fibre communications, guide-lighting principle is exactly
The total internal reflection mechanism of light.Common bare fibre is generally by center glass of high refractive index core (core diameter is generally 9-62.5um), centre
It is formed for low-refraction silica glass covering (core diameter is generally 125um) and outermost reinforcement resinous coat.And optical fiber can be divided into
Single mode optical fiber and multimode fibre.Single mode optical fiber：Centre pane core is relatively thin (diameter 9um+0.5um), can only pass the light of one mode,
Its intermode dispersion very little has the function from modeling and limit mould.Multimode fibre：Centre pane core is relatively thick (50um+1um), can pass
The light of various modes, but its intermode dispersion is larger, and the light of transmission is impure.
And optical fiber laser has the following advantages：Optical fiber laser have small, low energy consumption, long lifespan, stability are high,
The features such as non-maintaining, multiband, environmentally protective, it is imitated with superior beam quality, the performance of stabilization, the opto-electronic conversion of superelevation
Rate has won the affirmative of numerous laser insiders.For optical fiber laser with the reliability of its superelevation, remarkable beam quality is low
Honest and clean operating cost establishes new standard for laser processing industry.Its gain media length, coupling efficiency height, good heat dissipation, structure
Simple and compact, flexible and convenient to use, quality for outputting laser beam is good and output wavelength range is wide (400~3400nm).
1, high power：High-capacity optical fiber laser is all doubly clad optical fiber, and pump light is got on surrounding layer, and energy is inhaled
It receives, then is partially converted to laser, therefore the influence of the material of covering and structure to optical fiber laser is very big, various countries have developed at present
Go out variously-shaped optical fiber, there is circular, D-shaped, rectangle, unsteady cavity shape, quincunx, square, flat thread shape etc..
2, it is not necessarily to thermoelectric (al) cooler：This powerful wide face multi-mode diode can work at very high temperatures, need only
It is simple air-cooled, it is at low cost.
3, very wide pump-wavelength range：It is dilute that active cladded-fiber in high-power optical fiber laser is doped with erbium/ytterbium
Earth elements, there are one wide and again flat light wave uptake zones (930-970nm), and therefore, pump diode is not required to any kind of
Wavelength stabilized device
4, efficient：Pump light repeatedly passes across single mode optical fiber fibre core, therefore its utilization rate is high.
5, high reliability
Further, the parameter being arranged when using continuous laser in the step b includes the power P of laser welding head and swashs
The movement speed V of flush weld head.And the power P of the laser welding head is 300W to 3000W.The movement speed V of the laser welding head
For 2mm/s to 300mm/s.It can be changed come adjustment parameter according to the thickness of welded plate and the depth of welding, be wanted with meeting welding
It asks, effect of the general welded plate using the galvanized sheet of 1mm to 1.8mm thickness as reinforcing plate.
The parameter being arranged when still further, using quasi-continuous lasing in the step b includes the power P 1 of laser, swashs
Movement speed V1, pulse energy and the pulse frequency and pulse width of flush weld head.Specifically, the maximum value of the pulse energy
For 100J, the pulse frequency is 50HZ to 10000HZ.The pulse width is 0.05ms to 50ms.The work(of the laser
Rate P1 is 300W to 3000W, and the movement speed V1 of the laser welding head is 2mm/s to 300mm/s.
In addition, the welded plate is galvanized sheet, the thickness of the galvanized sheet is 0.8mm to 2mm.
Further include carrying out the galvanized sheet except at zinc in the step b moreover, when using quasi-continuous lasing welding
Reason.Except zinc processing is is scanned the surface of galvanized sheet using laser, power is provided in 20W to 200W, scanning mirror
Speed was at 2000mm/s to 8000mm/ seconds.Except the quality that can improve welding after zinc.Certainly, it is first removed when continuous laser welds
The zinc welding quality of welding position is also beneficial to.
The present invention provides the seamless no color differnece Welders of surface stainless steel plate surface based on continuous laser, quasi-continuous lasing
Reinforcing plate is soldered to the back side of stainless steel faceplate by using laser welding, plays the role of reinforcing rib, improved not by skill
The intensity of rust steel facing.The surface of stainless steel faceplate is not penetrated by controlling solder joint so that the surface stainless steel plate surface after welding
Without trace；And there is aberration after avoiding welding in the thermal accumlation for controlling pad；To ensure that the outer of stainless steel faceplate
It sees.And this programme provides the mode of 2 kinds of continuous lasers welding, that welds is efficient, and entire welding process flow is simple, fast
Speed, and weld strength is good, and the tensile strength of stainless steel faceplate and reinforcing plate after welding reaches 100kg/cm2Left and right, is not easy
Failure.
It is as described above the one or more embodiments for combining particular content to provide, does not assert the specific reality of the present invention
It applies and is confined to these explanations.It is all approximate with method of the invention, structure etc., identical, or for present inventive concept under the premise of
It makes several technologies to deduce, or replaces and all should be considered as protection scope of the present invention.
Claims (9)
1. the stainless steel faceplate surface soldered technique based on continuous laser, quasi-continuous lasing, which is characterized in that including following step
Suddenly,
A, stainless steel faceplate is fixed on fixture, is placed into surface stainless steel back by welded plate is stacked, and pass through fixture
By stainless steel faceplate and welding board clamping；
B, welded plate is opposite with laser welding camera lens, it sets parameter and carries out continuous laser or quasi-continuous lasing welding, make weldering
Point penetrates the welded plate and controls the thickness that fusion penetration of the solder joint on stainless steel faceplate is no more than the stainless steel faceplate；
C, fixture is unclamped, stainless steel faceplate is removed.
2. the seamless welding procedure of surface stainless steel plate surface of base continuous laser according to claim 1, quasi-continuous lasing,
It is characterized in that, inert protective gas is also passed through in the welding process in the step b.
3. the seamless welding procedure of surface stainless steel plate surface of base continuous laser according to claim 2, quasi-continuous lasing,
It is characterized in that, the parameter being arranged when using continuous laser in the step b includes the power P and laser welding head of laser welding head
Movement speed V.
4. the stainless steel faceplate surface soldered technique according to claim 3 based on continuous laser, quasi-continuous lasing, special
Sign is that the power P of the laser welding head is 300W to 3000W.
5. the stainless steel faceplate surface soldered technique according to claim 3 based on continuous laser, quasi-continuous lasing, special
Sign is that the movement speed V of the laser welding head is 2mm/s to 300mm/s.
6. the stainless steel faceplate surface soldered technique according to claim 2 based on continuous laser, quasi-continuous lasing, special
Sign is that the parameter being arranged when using quasi-continuous lasing in the step b includes the shifting of the power P 1, laser welding head of laser welding head
Dynamic speed V1, pulse energy and pulse frequency and pulse width.
7. the stainless steel faceplate surface soldered technique according to claim 6 based on continuous laser, quasi-continuous lasing, special
Sign is that the maximum value of the pulse energy is 100J, and the pulse frequency is 50HZ to 10000HZ.
8. the stainless steel faceplate surface soldered technique according to claim 6 based on continuous laser, quasi-continuous lasing, special
Sign is that the pulse width is 0.05ms to 50ms.
9. the stainless steel faceplate surface soldered technique according to claim 6 based on continuous laser, quasi-continuous lasing, special
Sign is, the power P 1 of the laser is 300W to 3000W, the movement speed V1 of the laser welding head be 2mm/s extremely
300mm/s。
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109249131A (en) * | 2018-11-07 | 2019-01-22 | 合肥菲斯特激光科技有限公司 | A kind of 316L bipolar plate of stainless steel laser welding process |
| CN110961783A (en) * | 2018-09-28 | 2020-04-07 | 大族激光科技产业集团股份有限公司 | Sealing method of ultrathin stainless steel shell |
| CN114309939A (en) * | 2022-01-07 | 2022-04-12 | 武汉锐科光纤激光技术股份有限公司 | Copper-based sheet material belt laser welding method and laser welding equipment |
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| CN114309939A (en) * | 2022-01-07 | 2022-04-12 | 武汉锐科光纤激光技术股份有限公司 | Copper-based sheet material belt laser welding method and laser welding equipment |
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