CN105149785A - Lap joint laser welding technology for 0.5 mm aluminum alloy plate - Google Patents
Lap joint laser welding technology for 0.5 mm aluminum alloy plate Download PDFInfo
- Publication number
- CN105149785A CN105149785A CN201510709998.7A CN201510709998A CN105149785A CN 105149785 A CN105149785 A CN 105149785A CN 201510709998 A CN201510709998 A CN 201510709998A CN 105149785 A CN105149785 A CN 105149785A
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- CN
- China
- Prior art keywords
- welding
- alloy plate
- aluminium alloy
- welded
- weld
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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
- B23K26/24—Seam 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
-
- 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
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
Abstract
The invention relates to a lap joint laser welding technology for a 0.5 mm aluminum alloy plate, and belongs to the technical field of welding processes. According to the technology, lap joint of the 0.5 mm aluminum alloy plate is completed through the steps of preparation before welding, cleaning, clamping, point solidification and laser welding ultimately. By adjusting the appropriate laser welding parameters, the internal defects such as air holes can be overcome, thermal input can be greatly lowered, and good joint performance is achieved. Deformation can be kept to be avoided after welding on the basis that welded joint performance is guaranteed when the thin aluminum alloy plate is welded, and a great effect can be played in the machining process of tightness parts.
Description
Technical field
The present invention relates to a kind of 0.5mm aluminium alloy plate overlap joint laser welding process, belong to welding technique field.
Background technology
In prior art, the welding of aluminum alloy lapped joint generally adopts argon arc welding to weld, and because its heat input is comparatively large, heat affected area is wider, and welded seam area performance can decline to some extent.
Laser weld can adopt continuously or pulse laser beam is realized, and the principle of laser weld can be divided into heat-conduction-type to weld and Laser Deep Penetration Welding.Power density is less than 10
4~ 10
5w/cm
2for heat conduction welding, now fusion penetration is shallow, speed of welding is slow; Power density is greater than 10
5~ 10
7w/cm
2time, metal surface, by the recessed one-tenth of heat effect " hole ", forms deep penetration welding, has the advantages that speed of welding is fast, depth-to-width ratio is large.And pulsed laser welding is generally used for the weld seam of spot welding and middle low power, throat thickness is also less.And adopt pulsed laser welding technique significantly can fall low_input_power, obtain good Weld Performance.
The principle of laser weld is made up of optics oscillator and the medium be placed between the end mirror of oscillator hole two.When medium is subject to being excited to higher-energy state, start to produce same-phase light wave and between two end mirrors roundtrip, form the string knot effect of photoelectricity, light wave amplified, and obtains enough energy and start to launch laser.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, provide a kind of 0.5mm aluminium alloy plate to overlap laser welding process.
According to technical scheme provided by the invention, 0.5mm aluminium alloy plate overlap joint laser welding process, step is:
(1) welds prepares:
A, getting 0.5mm aluminium alloy plate, observe its junction to be welded, requiring smooth without scratching, the defects such as indenture; Do not meet the demands and then adopt sand papering solder side, and the depth of parallelism of solder side need be ensured during polishing, prevent from being polished into cambered surface;
B, polished and need clear up to-be-welded region, with acetone or alcohol by thorough for solder side wiped clean, the greasy dirt etc. in welded seam area 3mm is cleaned out equally; When adopt alcohol clean time, need wait alcohol thoroughly volatilize after carry out further work again;
(3) clamping:
C, compress 0.5mm aluminium alloy plate to be welded with fixture clamping, then splice; Connecting method is by two pieces of parallel splicings of aluminium alloy plate, require surfacing staggered edge free, and assembled gap, commissure must not be greater than 0.05mm;
D, to carry out point solid, only needs weld seam both sides and a zone line each point solid some when point is solid; Parameter when point is solid: power 200 ~ 300w, 0.2 second weld interval, defocusing amount-3 ~+3mm;
(4) weld:
E, solid to point after 0.5mm aluminium alloy plate weld; Laser incident angle is noted, because aluminium alloy is high anti-material, so need laser beam and weld seam place plane close to vertical but a very little inclination angle will be had, 5 ~ 10 degree when welding during welding;
F, adjustment laser welding process parameter, power 900 ~ 1000W, defocusing amount+2 ~+3mm, speed of welding 2500 ~ 3000mm/min, laser pulse duration 0.06s, frequency 60 ~ 70Hz, protective gas is the Ar of 99.9%, shield gas flow rate 10 ~ 15L/min, protective gas direction is the position entering 1 ~ 2mm after direction before welding;
With welding after g, adjustment, during welding, prevent outer gas stream from affecting welding.
Beneficial effect of the present invention: the present invention, by adjusting suitable laser weld parameters, not only can eliminate the internal flaws such as pore, significantly can also fall low_input_power, obtain good joint performance.Without distortion after the present invention also can keep welding when welding aluminum alloy thin plate on the basis ensureing its Weld Performance, in the processing of tight part, play great role.
Detailed description of the invention
Below in conjunction with instantiation, the invention will be further described.
Workpiece material is aluminium alloy, and base plate thickness of slab is 0.5mm.Require hermetically sealed, and appearance of weld is attractive in appearance, functional.
Embodiment 10.5mm aluminium alloy plate overlap joint laser welding process, step is:
(1) welds prepares:
A, getting 0.5mm aluminium alloy plate, observe its junction to be welded, requiring smooth without scratching, the defects such as indenture; Do not meet the demands and then adopt sand papering solder side, and the depth of parallelism of solder side need be ensured during polishing, prevent from being polished into cambered surface;
B, polished and need clear up to-be-welded region, with acetone or alcohol by thorough for solder side wiped clean, the greasy dirt etc. in welded seam area 3mm is cleaned out equally; When adopt alcohol clean time, need wait alcohol thoroughly volatilize after carry out further work again;
(3) clamping:
C, compress 0.5mm aluminium alloy plate to be welded with fixture clamping, then splice; Connecting method is by two pieces of parallel splicings of aluminium alloy plate, require surfacing staggered edge free, and assembled gap, commissure must not be greater than 0.05mm;
D, to carry out point solid, only needs weld seam both sides and a zone line each point solid some when point is solid; Parameter when point is solid: power 200w, 0.2 second weld interval, defocusing amount+3mm;
(4) weld:
E, solid to point after 0.5mm aluminium alloy plate weld; During welding, laser beam and plane included angle, weld seam place are 80 degree;
F, adjustment laser welding process parameter, power 900W, defocusing amount+3mm, speed of welding 2500mm/min, laser pulse duration 0.06s, frequency 70Hz, protective gas is the Ar of 99.9%, shield gas flow rate 15L/min, protective gas direction is the position entering 1mm after direction before welding;
With welding after g, adjustment, during welding, prevent outer gas stream from affecting welding.
After having welded, appearance of weld is attractive in appearance, and joint performance is good, the internal flaws such as pore-free.
Embodiment 20.5mm aluminium alloy plate overlap joint laser welding process,
Step is:
(1) welds prepares:
A, getting 0.5mm aluminium alloy plate, observe its junction to be welded, requiring smooth without scratching, the defects such as indenture; Do not meet the demands and then adopt sand papering solder side, and the depth of parallelism of solder side need be ensured during polishing, prevent from being polished into cambered surface;
B, polished and need clear up to-be-welded region, with acetone or alcohol by thorough for solder side wiped clean, the greasy dirt etc. in welded seam area 3mm is cleaned out equally; When adopt alcohol clean time, need wait alcohol thoroughly volatilize after carry out further work again;
(3) clamping:
C, compress 0.5mm aluminium alloy plate to be welded with fixture clamping, then splice; Connecting method is by two pieces of parallel splicings of aluminium alloy plate, require surfacing staggered edge free, and assembled gap, commissure must not be greater than 0.05mm;
D, to carry out point solid, only needs weld seam both sides and a zone line each point solid some when point is solid; Parameter when point is solid: power 300w, 0.2 second weld interval, defocusing amount-3mm;
(4) weld:
E, solid to point after 0.5mm aluminium alloy plate weld; During welding, laser beam and plane included angle, weld seam place are 85 degree;
F, adjustment laser welding process parameter, power 1000W, defocusing amount+2mm, speed of welding 3000mm/min, laser pulse duration 0.06s, frequency 60Hz, protective gas is the Ar of 99.9%, shield gas flow rate 10L/min, protective gas direction is the position entering 1mm after direction before welding;
With welding after g, adjustment, during welding, prevent outer gas stream from affecting welding.
After having welded, appearance of weld is attractive in appearance, and joint performance is good, the internal flaws such as pore-free.
Embodiment 30.5mm aluminium alloy plate overlap joint laser welding process, step is:
(1) welds prepares:
A, getting 0.5mm aluminium alloy plate, observe its junction to be welded, requiring smooth without scratching, the defects such as indenture; Do not meet the demands and then adopt sand papering solder side, and the depth of parallelism of solder side need be ensured during polishing, prevent from being polished into cambered surface;
B, polished and need clear up to-be-welded region, with acetone or alcohol by thorough for solder side wiped clean, the greasy dirt etc. in welded seam area 3mm is cleaned out equally; When adopt alcohol clean time, need wait alcohol thoroughly volatilize after carry out further work again;
(3) clamping:
C, compress 0.5mm aluminium alloy plate to be welded with fixture clamping, then splice; Connecting method is by two pieces of parallel splicings of aluminium alloy plate, require surfacing staggered edge free, and assembled gap, commissure must not be greater than 0.05mm;
D, to carry out point solid, only needs weld seam both sides and a zone line each point solid some when point is solid; Parameter when point is solid: power 250w, 0.2 second weld interval, defocusing amount+1mm;
(4) weld:
E, solid to point after 0.5mm aluminium alloy plate weld; During welding, laser beam and plane included angle, weld seam place are 83 degree;
F, adjustment laser welding process parameter, power 950W, defocusing amount+3mm, speed of welding 2800mm/min, laser pulse duration 0.06s, frequency 65Hz, protective gas is the Ar of 99.9%, shield gas flow rate 13L/min, protective gas direction is the position entering 1.5mm after direction before welding;
With welding after g, adjustment, during welding, prevent outer gas stream from affecting welding.
After having welded, appearance of weld is attractive in appearance, and joint performance is good, the internal flaws such as pore-free.
Claims (1)
1.0.5mm aluminium alloy plate overlap joint laser welding process, is characterized in that step is:
(1) welds prepares:
A, getting 0.5mm aluminium alloy plate, observe its junction to be welded, requiring smooth without scratching, the defects such as indenture; Do not meet the demands and then adopt sand papering solder side, and the depth of parallelism of solder side need be ensured during polishing, prevent from being polished into cambered surface;
B, polished and need clear up to-be-welded region, with acetone or alcohol by thorough for solder side wiped clean, the greasy dirt etc. in welded seam area 3mm is cleaned out equally; When adopt alcohol clean time, need wait alcohol thoroughly volatilize after carry out further work again;
(3) clamping:
C, compress 0.5mm aluminium alloy plate to be welded with fixture clamping, then splice; Connecting method is by two pieces of parallel splicings of aluminium alloy plate, require surfacing staggered edge free, and assembled gap, commissure must not be greater than 0.05mm;
D, to carry out point solid, only needs weld seam both sides and a zone line each point solid some when point is solid; Parameter when point is solid: power 200 ~ 300w, 0.2 second weld interval, defocusing amount-3 ~+3mm;
(4) weld:
E, solid to point after 0.5mm aluminium alloy plate weld; During welding, laser beam and plane included angle, weld seam place are 80 ~ 85 degree;
F, adjustment laser welding process parameter, power 900 ~ 1000W, defocusing amount+2 ~+3mm, speed of welding 2500 ~ 3000mm/min, laser pulse duration 0.06s, frequency 60 ~ 70Hz, protective gas is the Ar of 99.9%, shield gas flow rate 10 ~ 15L/min, protective gas direction is the position entering 1 ~ 2mm after direction before welding;
With welding after g, adjustment, during welding, prevent outer gas stream from affecting welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510709998.7A CN105149785A (en) | 2015-10-28 | 2015-10-28 | Lap joint laser welding technology for 0.5 mm aluminum alloy plate |
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|---|---|---|---|
| CN201510709998.7A CN105149785A (en) | 2015-10-28 | 2015-10-28 | Lap joint laser welding technology for 0.5 mm aluminum alloy plate |
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| CN105149785A true CN105149785A (en) | 2015-12-16 |
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| CN201510709998.7A Pending CN105149785A (en) | 2015-10-28 | 2015-10-28 | Lap joint laser welding technology for 0.5 mm aluminum alloy plate |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855704A (en) * | 2016-05-12 | 2016-08-17 | 安徽天海厨房设备有限公司 | Novel aluminum alloy cabinet |
| CN105855707A (en) * | 2016-05-12 | 2016-08-17 | 安徽天海厨房设备有限公司 | Welding process of aluminum alloy cabinet |
| CN105904089A (en) * | 2016-05-12 | 2016-08-31 | 安徽天海厨房设备有限公司 | Aluminum alloy cabinet |
| CN106735904A (en) * | 2016-12-20 | 2017-05-31 | 柳州振业焊接机电设备制造有限公司 | The method for laser welding of aluminium alloy |
| CN107081527A (en) * | 2017-06-29 | 2017-08-22 | 大族激光科技产业集团股份有限公司 | A kind of welding method of metallic sheet stock |
| CN107138855A (en) * | 2017-05-05 | 2017-09-08 | 上海航天设备制造总厂 | A kind of method for laser welding of ultra-thin-wall medium carbon steel bridging arrangement |
| CN107498179A (en) * | 2017-09-27 | 2017-12-22 | 杨沁玥 | A kind of filter screen welding procedure |
| CN107866634A (en) * | 2017-10-26 | 2018-04-03 | 无锡汉神电气股份有限公司 | A kind of austenitic stainless steel thin plate butt welding process |
| 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 |
| CN108015421A (en) * | 2017-12-04 | 2018-05-11 | 上海思客琦自动化工程有限公司 | A kind of welding procedure of electrical switchgear aluminium alloy box |
| CN108436272A (en) * | 2018-06-13 | 2018-08-24 | 沈阳富创精密设备有限公司 | 200mm etching cavities laser is from fusion welding technique |
| 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 |
| CN109759699A (en) * | 2019-01-13 | 2019-05-17 | 大连理工大学 | A kind of 5083 Laser Welding of Aluminum Alloys processes |
| CN109967869A (en) * | 2019-04-08 | 2019-07-05 | 上海工程技术大学 | A kind of 6061 aluminium alloy sheet pulse laser stitch welding processes |
| CN110000472A (en) * | 2019-02-26 | 2019-07-12 | 武汉力神动力电池系统科技有限公司 | A kind of method for laser welding of power battery module aluminium alloy end plate and side plate |
| CN112719587A (en) * | 2020-12-18 | 2021-04-30 | 北京航星机器制造有限公司 | Laser pulse welding method for thin-wall aluminum alloy butt joint |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855707A (en) * | 2016-05-12 | 2016-08-17 | 安徽天海厨房设备有限公司 | Welding process of aluminum alloy cabinet |
| CN105904089A (en) * | 2016-05-12 | 2016-08-31 | 安徽天海厨房设备有限公司 | Aluminum alloy cabinet |
| CN105855704A (en) * | 2016-05-12 | 2016-08-17 | 安徽天海厨房设备有限公司 | Novel aluminum alloy cabinet |
| CN106735904A (en) * | 2016-12-20 | 2017-05-31 | 柳州振业焊接机电设备制造有限公司 | The method for laser welding of aluminium alloy |
| CN107138855A (en) * | 2017-05-05 | 2017-09-08 | 上海航天设备制造总厂 | A kind of method for laser welding of ultra-thin-wall medium carbon steel bridging arrangement |
| CN107081527B (en) * | 2017-06-29 | 2019-08-23 | 大族激光科技产业集团股份有限公司 | A kind of welding method of metallic sheet stock |
| CN107081527A (en) * | 2017-06-29 | 2017-08-22 | 大族激光科技产业集团股份有限公司 | A kind of welding method of metallic sheet stock |
| CN107498179A (en) * | 2017-09-27 | 2017-12-22 | 杨沁玥 | A kind of filter screen welding procedure |
| CN107866634A (en) * | 2017-10-26 | 2018-04-03 | 无锡汉神电气股份有限公司 | A kind of austenitic stainless steel thin plate butt welding process |
| 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 |
| CN108015421A (en) * | 2017-12-04 | 2018-05-11 | 上海思客琦自动化工程有限公司 | A kind of welding procedure of electrical switchgear aluminium alloy box |
| 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 |
| CN108436272A (en) * | 2018-06-13 | 2018-08-24 | 沈阳富创精密设备有限公司 | 200mm etching cavities laser is from fusion welding technique |
| CN109759699A (en) * | 2019-01-13 | 2019-05-17 | 大连理工大学 | A kind of 5083 Laser Welding of Aluminum Alloys processes |
| CN110000472A (en) * | 2019-02-26 | 2019-07-12 | 武汉力神动力电池系统科技有限公司 | A kind of method for laser welding of power battery module aluminium alloy end plate and side plate |
| CN109967869A (en) * | 2019-04-08 | 2019-07-05 | 上海工程技术大学 | A kind of 6061 aluminium alloy sheet pulse laser stitch welding processes |
| CN112719587A (en) * | 2020-12-18 | 2021-04-30 | 北京航星机器制造有限公司 | Laser pulse welding method for thin-wall aluminum alloy butt joint |
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Application publication date: 20151216 |