CN107081527A - A kind of welding method of metallic sheet stock - Google Patents
A kind of welding method of metallic sheet stock Download PDFInfo
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- CN107081527A CN107081527A CN201710515961.XA CN201710515961A CN107081527A CN 107081527 A CN107081527 A CN 107081527A CN 201710515961 A CN201710515961 A CN 201710515961A CN 107081527 A CN107081527 A CN 107081527A
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- welding
- weld
- sheet material
- welded
- sheet
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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
- B23K26/24—Seam welding
- B23K26/244—Overlap seam welding
Abstract
The present invention relates to a kind of welding method of metallic sheet stock, it comprises the following steps：Step S1, material positioning：Stack at least two blocks sheet materials to be welded are parallel；Step S2, parameter adjustment：Laser welding process parameter scope is adjusted, and sets weld shape；Step S3, welding：Laser welding is carried out to the sheet material using laser marking machine, and adjusts the depth of weld.The present invention carries out high-frequency by marking machine and impacts heat conduction weld, heat input can be greatly lowered, can ensure thin plate after welding without deformation, and weld penetration is controllable, and what it was conducive to thin plate penetrates welding processing.
Description
Technical field
The invention belongs to laser welding field, and in particular to a kind of welding method of metallic sheet stock.
Background technology
In the prior art, plate sheet welding is typically realized by the way of laser welding.Laser welding generally using continuous or
The laser beam processing of pulse mode realizes that laser welding mode is generally divided into Laser Deep Penetration Welding and laser heat conduction weld.Swash
During optical depth melting welding, heat input is larger, and thin plate transient absorption more heat transfer is yielding, during welding super thin metal material, due to not filling out
Welding material is filled, the thickness of postwelding weld metal zone may be thinned with respect to mother metal.
Easily deformed during due to using pulse or continuous wave laser welding metal thin plate, it is main in general actual production
To be welded using the lower-wattage of pulse laser, but relatively low power means that fusion penetration does not reach requirement, or
The relatively weak binding between coated metal can only be realized when thin plate has coating, it is impossible to meet the intensity requirement of welding；And to increase work(
Rate can cause the deformation of thin plate larger again to increase during fusion penetration, it is impossible to meet the quality requirement in actual production, therefore, above-mentioned to swash
The use of photocoagulation mode is necessarily restricted.
Therefore, it is necessary to heat input can be greatly lowered by providing one kind, at the same ensure thin plate after welding without deformation,
And the controllable welding method of weld penetration.
The content of the invention
The present invention is for above-mentioned defect of the prior art there is provided a kind of welding method of metallic sheet stock, and it will
Sheet metal material is had good positioning, and carries out high frequency lasers impact welding using fair speed and upper frequency to above-mentioned thin plate, by
This is that can obtain that surface is narrower, depth is controllable and intensity reaches the weld seam of requirement.
The technical solution adopted in the present invention is：
A kind of welding method of metallic sheet stock is provided, it comprises the following steps：
Step S1, material positioning：Stack at least two blocks sheet materials to be welded are parallel；Step S2, parameter adjustment：Adjustment swashs
Photocoagulation process parameters range, and set weld shape；
Step S3, welding：Laser welding is carried out to the sheet material using laser marking machine, and adjusts the depth of weld.
It is preferred that, the step S1 includes：
Whether S11, the surface of at least two blocks sheet material to be welded of inspection meet flatness requirement, if it is not satisfied, then to institute
The surface for stating sheet material to be welded is polished, and surface is reached flatness requirement；
S22, reach that the sheet material to be welded of flatness requirement is cleaned to surface, dried after the impurity that goes to degrease；
S23, clamping is carried out to the sheet material to be welded using plate sheet welding fixture fixed, make the sheet material to be welded
It is parallel to stack, and the sheet material to be welded is parallel stack after, gap between adjacent two sheet material is less than single plate material thickness
8-12%.
It is preferred that, also include in the step S2：Welding process is protected using protective gas.
It is preferred that, the protective gas is the argon gas that purity is 99.9%, and emission direction and the weldering of the protective gas
The angle between plane is connect between 35-50 degree.
It is preferred that, in the step S2, the adjusting range of the laser welding process parameter is：Power 16W~20W, from
Burnt amount+2mm~0mm, speed 80-120mm/s, frequency 20KHz~200KHz；And the weld shape is diameter 4-8mm circle.
It is preferred that, in the step S3, the process of the adjustment depth of weld includes：At least one is carried out along the weld seam to enclose
Welding, the depth of weld is adjusted with this.
The effect that technical solution of the present invention is brought：
The present invention carries out high-frequency by marking machine and impacts heat conduction weld, and heat input can be greatly lowered, welds
Later thin plate can be ensured without deformation, and weld penetration is controllable, what it was conducive to thin plate penetrates welding processing.
Brief description of the drawings
Fig. 1 is the welding method flow chart for the metallic sheet stock that the embodiment of the present invention one is provided；Fig. 2 is implementation of the present invention
The schematic diagram for the laser marking machine welding metal thin plate that example one is provided；
Fig. 3 is the schematic diagram for the protective gas emission direction that the embodiment of the present invention one is provided；
Fig. 4 is the schematic diagram for the weld seam by welding the certain depth-to-width ratio obtained that the embodiment of the present invention one is provided.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment one：
As shown in Figure 1-2, the welding method of metallic sheet stock of the invention comprises the following steps：
Step S1, material positioning：Stack at least two blocks sheet materials 1,1 ' to be welded are parallel；Two blocks of plates to be welded
Material can be sheet metal sheet material, and such as thickness is 0.1mm~0.3mm stainless steel substrates, nickel sheet；
Step S2, parameter adjustment：Laser welding process parameter scope is adjusted, and sets the shape of weld seam 2；
Step S3, welding：Laser beam 3 is produced using laser marking machine 100, entered by 3 pairs of sheet materials 1,1 ' of laser beam
Row laser welding, and adjust the depth of weld.
Specifically, the step S1 includes：
S11, check at least two blocks sheet material 1,1 ' to be welded surface whether flat smooth, meet flatness requirement, if
Flatness requirement is unsatisfactory for, then the surface of the sheet material to be welded can be beaten by the way of the polishing of fine sandpaper gently
Mill, makes surface reach flatness requirement；
S22, reach that the sheet material 1,1 ' to be welded of flatness requirement loads in the vessel equipped with acetone to surface, then by institute
State vessel and be put into ultrasonic washing instrument and cleaned, after the impurity that goes to degrease, is dried by hair-dryer；
S23, fix as shown in Fig. 2 carrying out clamping to the sheet material 1,1 ' to be welded using plate sheet welding fixture, make institute
State sheet material 1 to be welded, 1 ' it is parallel stack, and the sheet material 1 to be welded, 1 ' it is parallel stack after, between adjacent two sheet material
Gap is less than the 8-12% (being preferably 10%) of single plate material thickness, for example, the sheet material single plate material thickness to be welded
For 0.2mm, then the gap between adjacent two sheet material is less than 0.02mm.
Meanwhile, in the step S2, the adjusting range of the laser welding process parameter is：Power 16W~20W (can be excellent
Elect 18W as), defocusing amount+2mm~0mm (preferably be+1mm), speed of welding 80-120mm/s (being preferably 100mm/s), frequently
Rate 20KHz~200KHz；And the formed weld seam 2 of welding is shaped as the circle of diameter 4-8mm (being preferably 5mm), in this implementation,
By adjusting above-mentioned welding parameter so that it is only 0.171s or so to complete the time-consuming of individual pen welding, and bonding speed can be greatly improved；
In addition, welding process can also be protected using protective gas in step S2, i.e. use purity for 99.9% argon gas
As protective gas, and as shown in figure 3, the emission direction and welding plane (i.e. adjacent two plate to be welded of the protective gas
Material 1, after 1 ' parallel superposition, the plane residing for gap between the two) between angle theta 35-50 degree (being preferably 45 degree)
Between.
In step S3, before laser welding is carried out using 100 pairs of the laser marking machine sheet material 1,1 ', first stacked parallel
Good sheet material 1,1 ' to be welded is placed at the focal length of the galvanometer head of the laser marking machine 100.By being carried out at focal length
Welding, may be such that welding is avoided because of the unstable influence of the heat input produced by external interference, it is ensured that welding effect is good,
Avoid heat input is excessive to cause thin plate by burn-through simultaneously, reduce welding cost.Meanwhile, in the step S3, as shown in figure 4, institute
Stating the process of the adjustment depth of weld includes：The welding of at least one circle is carried out along the weld seam 2, the depth of weld is adjusted with this, obtained
Suitable depth-to-width ratio (depth-to-width ratio is H/D value, and the H is the depth of weld, and the D is weld diameter) is obtained, for example, welding
3 circles may be such that the depth-to-width ratio of weld seam reaches 5:1, it is hereby achieved that surface is narrower, depth is controllable, and intensity reaches requirement
Weld seam.
In summary, the present invention carries out high-frequency impact heat conduction weld to metal sheet by laser marking machine, can
So that heat input is greatly lowered, bonding speed is improved, and weld penetration is controlled by adjusting the number of turns of welding, is being ensured
Thin plate obtains larger depth-to-width ratio and the satisfactory weld seam of intensity on the premise of being unlikely to deform, be conducive to improving sheet metal
The efficiency of welding processing is penetrated, processing cost is reduced.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can be by hardware
To complete, the hardware of correlation can also be instructed to complete by program, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (6)
1. a kind of welding method of metallic sheet stock, it is characterised in that comprise the following steps：
Step S1, material positioning：Stack at least two blocks sheet materials to be welded are parallel；
Step S2, parameter adjustment：Laser welding process parameter scope is adjusted, and sets weld shape；
Step S3, welding：Laser welding is carried out to the sheet material using laser marking machine, and adjusts the depth of weld.
2. welding method as claimed in claim 1, it is characterised in that the step S1 includes：
Whether S11, the surface of at least two blocks sheet material to be welded of inspection meet flatness requirement, if it is not satisfied, then being treated to described
The surface of the sheet material of welding is polished, and surface is reached flatness requirement；
S22, reach that the sheet material to be welded of flatness requirement is cleaned to surface, dried after the impurity that goes to degrease；
S23, clamping is carried out to the sheet material to be welded using plate sheet welding fixture fixed, make the sheet material to be welded parallel
Stack, and the sheet material to be welded is parallel stack after, gap between adjacent two sheet material is less than the 8- of single plate material thickness
12%.
3. welding method as claimed in claim 1, it is characterised in that also include in the step S2：Using protective gas pair
Welding process is protected.
4. welding method as claimed in claim 3, it is characterised in that the protective gas is the argon gas that purity is 99.9%,
And the angle between the emission direction and welding plane of the protective gas is between 35-50 degree.
5. welding method as claimed in claim 1, it is characterised in that in the step S2, the laser welding process parameter
Adjusting range be：Power 16W~20W, defocusing amount+2mm~0mm, speed 80-120mm/s, frequency 20KHz~200KHz；And
The weld shape is diameter 4-8mm circle.
6. welding method as claimed in claim 5, it is characterised in that in the step S3, the mistake of the adjustment depth of weld
Journey includes：The welding of at least one circle is carried out along the weld seam, the depth of weld is adjusted with this.
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| CN201710515961.XA CN107081527B (en) | 2017-06-29 | 2017-06-29 | A kind of welding method of metallic sheet stock |
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| CN201710515961.XA CN107081527B (en) | 2017-06-29 | 2017-06-29 | A kind of welding method of metallic sheet stock |
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| CN107081527A true CN107081527A (en) | 2017-08-22 |
| CN107081527B CN107081527B (en) | 2019-08-23 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803993A (en) * | 2017-09-28 | 2018-03-16 | 马鞍山松鹤信息科技有限公司 | A kind of sheet material seamless welding technique |
| CN107914092A (en) * | 2017-12-04 | 2018-04-17 | 上海思客琦自动化工程有限公司 | A kind of welding procedure of oil heater heat sink stainless steel |
| CN108015422A (en) * | 2017-12-29 | 2018-05-11 | 广东正业科技股份有限公司 | Laser machine component and its processing technology |
| CN108890136A (en) * | 2018-06-08 | 2018-11-27 | 大族激光科技产业集团股份有限公司 | The weld seam forming method and device of plate and frame in a kind of mobile phone |
| CN109128505A (en) * | 2018-10-08 | 2019-01-04 | 吉林大学 | Austenitic stainless steel rail passenger car body side wall method for laser welding |
| CN110480165A (en) * | 2018-05-15 | 2019-11-22 | 大族激光科技产业集团股份有限公司 | Method for laser welding and laser welding apparatus |
| CN112439995A (en) * | 2020-11-17 | 2021-03-05 | 上海思客琦自动化工程有限公司 | Laser welding process for welding nickel-plated copper with thickness of 200 microns by using single-mode laser |
| CN112439993A (en) * | 2020-11-17 | 2021-03-05 | 上海思客琦自动化工程有限公司 | Single-mode laser welding process for nickel-plated copper and 6-series aluminum alloy |
| CN112439994A (en) * | 2020-11-17 | 2021-03-05 | 上海思客琦自动化工程有限公司 | Laser welding process for dissimilar metal connecting material at lithium battery tab part |
| CN114985924A (en) * | 2022-05-19 | 2022-09-02 | 深圳泰德激光技术股份有限公司 | Thin material laser welding method and component |
| TWI803667B (en) * | 2018-09-28 | 2023-06-01 | 日商日鐵日新製鋼股份有限公司 | Welding method of stainless steel foil and welded structure |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803993A (en) * | 2017-09-28 | 2018-03-16 | 马鞍山松鹤信息科技有限公司 | A kind of sheet material seamless welding technique |
| CN107914092A (en) * | 2017-12-04 | 2018-04-17 | 上海思客琦自动化工程有限公司 | A kind of welding procedure of oil heater heat sink stainless steel |
| CN108015422A (en) * | 2017-12-29 | 2018-05-11 | 广东正业科技股份有限公司 | Laser machine component and its processing technology |
| CN110480165A (en) * | 2018-05-15 | 2019-11-22 | 大族激光科技产业集团股份有限公司 | Method for laser welding and laser welding apparatus |
| CN108890136A (en) * | 2018-06-08 | 2018-11-27 | 大族激光科技产业集团股份有限公司 | The weld seam forming method and device of plate and frame in a kind of mobile phone |
| TWI803667B (en) * | 2018-09-28 | 2023-06-01 | 日商日鐵日新製鋼股份有限公司 | Welding method of stainless steel foil and welded structure |
| CN109128505A (en) * | 2018-10-08 | 2019-01-04 | 吉林大学 | Austenitic stainless steel rail passenger car body side wall method for laser welding |
| CN112439995A (en) * | 2020-11-17 | 2021-03-05 | 上海思客琦自动化工程有限公司 | Laser welding process for welding nickel-plated copper with thickness of 200 microns by using single-mode laser |
| CN112439993A (en) * | 2020-11-17 | 2021-03-05 | 上海思客琦自动化工程有限公司 | Single-mode laser welding process for nickel-plated copper and 6-series aluminum alloy |
| CN112439994A (en) * | 2020-11-17 | 2021-03-05 | 上海思客琦自动化工程有限公司 | Laser welding process for dissimilar metal connecting material at lithium battery tab part |
| CN114985924A (en) * | 2022-05-19 | 2022-09-02 | 深圳泰德激光技术股份有限公司 | Thin material laser welding method and component |
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Effective date of registration: 20220830 Address after: 518000 workshop 501, building 3, intelligent manufacturing center park, No. 12, Chongqing Road, Heping community, Fuhai street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Han's lithium battery intelligent equipment Co.,Ltd. Address before: 518000 No. 9988 Shennan Road, Nanshan District, Shenzhen, Guangdong Patentee before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. |