CN109807418A - A kind of high-frequency vibration laser is from fuse welding method - Google Patents
A kind of high-frequency vibration laser is from fuse welding method Download PDFInfo
- Publication number
- CN109807418A CN109807418A CN201910224785.3A CN201910224785A CN109807418A CN 109807418 A CN109807418 A CN 109807418A CN 201910224785 A CN201910224785 A CN 201910224785A CN 109807418 A CN109807418 A CN 109807418A
- Authority
- CN
- China
- Prior art keywords
- laser
- welding
- wire
- fuse
- frequency vibration
- 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.)
- Pending
Links
Landscapes
- Laser Beam Processing (AREA)
Abstract
The present invention discloses a kind of high-frequency vibration laser from fuse welding method, solving the problems, such as the fuse methodology of existing wire filling laser welding, that there are welding efficiencies is low, wire feed required precision is high, welding wire stability is poor, welding parameter control complexity, gap bad adaptability and weldquality are poor, the present invention includes: to focus on laser facula on welding wire, and piezoelectric ceramics brake is mounted on wire tip；It is passed through protective gas, starting laser and piezoelectric ceramics brake, 5~10m/min of wire feed rate focuses on laser beam on welding wire always, to realize that laser is welded from fuse stabilizing solution bridge transition.
Description
Technical field
The invention belongs to technical field of laser welding more particularly to a kind of high-frequency vibration laser from fuse welding method.
Background technique
Laser welding has its unique advantage and feature compared with other conventional bonding techniques.Wherein most important advantage
Be exactly it is more accurate to the controlling of energy input, laser beam can be concentrated on to very narrow region, to generate high energy
The central heat source of density, quick inswept weld seam are a kind of high-quality, efficient, high-quality welding methods.Laser welding is at present increasingly
It is widely used in the fields such as automobile, aerospace.
But laser facula is small, welding requirements weldment assembly precision is high, and requires position of the light beam on workpiece that cannot have
Significant offset, the maximal clearance of permission is no more than the 10% of plate thickness, therefore most of laser welding is filled silk using laser
Welding.Some researches show that welded gaps can be improved in wire filling laser welding, assembly precision when reducing welding.With laser self-welding
Compare, the advantage that wire filling laser welding not only can keep Laser Welding intrinsic, can also improve the surface of Laser Welding of Aluminum Alloys at
Shape improves the mechanical property of connector, prevents crackle from generating.
Wire filling laser welding can be very good to solve the restricted problem that assembly precision applies laser welding, but add one
A external wire feeder, so that control is more complicated for welding parameter, wire feed required precision is stringent, wire feed rate and laser function
Rate, speed of welding stringent must match.During wire filling laser welding, the stability of welding wire and the reflectivity to laser
It will influence the flowing in molten bath and the variation of laser energy.
Laser from fuse welding be a kind of novel laser welding technology, laser beam directly act on wire tip rather than
Base material, wire melting drives thin-walled base material to melt and couples to form liquid state molten pool completion gap bridging, and then cooled and solidified is formed
Weld seam, by adding piezoelectric ceramics brake in wire tip, to the molten bath flowing and solidification behavior progress active under high weldering speed
Regulation increases Laser Welding to the adaptability in gap, improves weld gap tolerance.
Summary of the invention
That there are welding efficiencies is low, wire feed required precision is high the present invention is to solve the fuse methodology of existing wire filling laser welding,
Welding wire stability is poor, welding parameter control is complicated, from gap bad adaptability and the problem of weldquality difference, and proposes a kind of high
Frequency vibration laser is from fuse welding method.
The high tolerance laser welding process of the present invention and Intelligent Process Control method, sequentially include the following steps:
One, laser facula is focused on welding wire, piezoelectric ceramics brake is mounted on wire tip；Two, it is passed through protection gas
Body starts laser and piezoelectric ceramics brake, and wire feed rate is 5~10m/min, focuses on laser beam on welding wire always,
To realize that laser is welded from fuse.
The flow that protection gas is passed through in step 2 is 15~25L/min.
Speed of welding is 5~10m/min in step 2.
The output power of laser is 1000W~6000W in step 2.
Piezoelectric ceramic vibrator dynamic frequency is in 50~2000HZ in step 2, and amplitude is at 0~100 micron.
For the present invention using laser from by the way of fuse, laser beam directly acts on wire tip rather than base material, and welding wire is molten
Change drive thin-walled base material melt and couple to be formed liquid state molten pool complete gap put up a bridge, and then cooled and solidified formation weld seam, by
Wire tip adds piezoelectric ceramics brake, flows to the molten bath under high weldering speed and solidification behavior carries out active control, increase and swash
Flush weld improves weld gap tolerance to the adaptability in gap.
Compared with prior art, the invention has the following advantages that
1) for the complicated weld seam of the weak rigidity of aluminium alloy, in weld gap, unevenly and under high-rate laser welding condition molten bath is spread
The technical problem that difficult appearance of weld is poor and the porosity is high is opened up, proposes a kind of completely new laser welding process, on heat transfer type,
Laser is proposed from fuse thermal conductivity welding method, laser direct projection welding wire, rather than weld seam base material greatly improves laser welding to weld seam
The tolerance and adaptability in gap.In the active control of molten bath flowing and pattern, high frequency radial vibration wire feed a little is proposed
New method transmits vibrational energy from wire tip toward molten bath, makes up under high-temperature only that abutment surface tension driving molten bath mobility is not
The problem of foot ensures that liquid state molten pool is quickly sufficiently sprawled to form butt weld bridging.Compared to conventional laser fuse methodology, weldering
10% of gap no more than plate thickness is connect, and uses laser from fuse methodology, the gap allowed can reach plate thickness
50%, laser is improved to the tolerance in gap, reduces assembly precision when laser welding；
2) to molten drop enter molten bath state control it is more accurate flexibly, by change piezoelectric ceramics brake frequency,
Amplitude etc., realize welding wire enter molten bath region stirring and liquid bridge transitional function, for improve solidification and crystallization process, refinement
Crystal grain etc. is advantageously.
Detailed description of the invention
Fig. 1 is a kind of high-frequency vibration laser of the embodiment of the present invention from fuse welding method schematic diagram；
Numbering in the drawing: 1 is aluminium alloy plate, and 2 be laser beam, and 3 be laser head, and 4 be piezoelectric ceramics brake apparatus, and 5 be weldering
Silk, 6 be feed roller.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that technical solution of the present invention is not
It is confined to act specific embodiment set forth below, further includes any combination between each specific embodiment.
Specific embodiment 1: present embodiment high-frequency vibration laser is sequentially included the following steps: from fuse welding method:
One, laser facula is focused on welding wire, piezoelectric ceramics brake is mounted on wire tip；Two, it is passed through protective gas, starting swashs
Light device and piezoelectric ceramics brake, 5~10m/min of wire feed rate focus on laser beam on welding wire always, to realize laser
It is welded from fuse.
The material and thickness of the suitable workpiece to be welded of conventional laser fuse welding method are suitable for the side of present embodiment
Method.In particular, it should be pointed out that the parameter that this method is related to has gap width, wire feed rate, laser power, speed of welding, protection
Gas ingredients and flow, it should according to the type of real material, size and joint form, gap size etc. to these main techniques
Parameter carries out the optimization of system, comprehensively considers the Proper Match of these parameters, just can guarantee obtain high quality connector in this way.Its
In, what is played a decisive role to this method welding effect is gap width, wire feed rate, laser power, and total selection principle is to protect
Demonstrate,proving band-like welding wire can melt, while carry out bridging transition, specifically: send speed bigger, matched laser power and piezoelectricity pottery
Porcelain vibration frequency and amplitude are bigger.
Specific embodiment 2: the present embodiment is different from the first embodiment in that: protection gas is passed through in step 2
Flow be 15~25L/min.It is other same as the specific embodiment one.
Specific embodiment 3: this reality silk applies mode unlike specific embodiment one or two: being welded in step 2
Speed is 5~10m/min.It is other the same as one or two specific embodiments.
Specific embodiment 4: present embodiment is unlike specific embodiment one to three: laser in step 2
Output power be 1000W~6000W.It is other identical as specific embodiment one to four.
Specific embodiment 5: present embodiment is unlike specific embodiment one to four: piezoelectricity is made pottery in step 2
Porcelain vibration frequency is in 50~2000HZ, and amplitude is at 0~100 micron.It is other identical as specific embodiment one to five.
The section of weld joint that present embodiment high-frequency vibration laser is obtained from fuse welding method, the results showed that, high frequency is a little
Radial vibration wire feed transmits vibrational energy from wire tip toward molten bath, makes up under high-temperature only abutment surface tension driving molten bath stream
The problem of dynamic property deficiency ensures that liquid state molten pool is quickly sufficiently sprawled to form butt weld bridging.Vibration accelerates the heat fortune in molten bath
It is dynamic, make molten bath heat dissipation slowly, vibration is stronger to the stirring action in molten bath, to improve laser to the tolerance in gap, reduces
Assembly precision when laser welding reduces the impact of the temperature gradient and molten drop of molten drop and molten bath to molten bath, improves solidifying
Gu the defects of crystallization process refines crystal grain, advantageously reduces stomata, incomplete fusion.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, above-mentioned hypothesis these
Improvement and modification also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of high-frequency vibration laser is from fuse welding method, which comprises the following steps: Step 1: by laser light
Spot focuses on welding wire, and piezoelectric ceramics brake is mounted on welding wire end；Step 2: being passed through protective gas, start laser and pressure
Electroceramics brake, wire feed rate are 5~10m/min, focus on laser beam on welding wire always, to realize laser from fuse
Welding；Wherein, using laser from by the way of fuse, laser beam directly acts on wire tip, and wire melting drives thin-walled base material
It melts and couples to form liquid state molten pool completion gap bridging, and then cooled and solidified forms weld seam, it is right by piezoelectric ceramics brake
Molten bath flowing and solidification behavior under high weldering speed carry out active control.
2. a kind of high-frequency vibration laser as described in claim 1 is from fuse welding method, it is characterised in that be passed through in step 2
The flow for protecting gas is 15~25L/min.
3. a kind of high-frequency vibration laser as claimed in claim 1 or 2 is from fuse welding method, it is characterised in that welded in step 2
Connecing speed is 5~10m/min.
4. a kind of high-frequency vibration laser as described in claims 1 to 3 is from fuse welding method, it is characterised in that swash in step 2
The output power of light device is 1000W~6000W.
5. a kind of high-frequency vibration laser as described in Claims 1-4 is from fuse welding method, it is characterised in that pressed in step 2
Electroceramics vibration frequency is in 50~2000HZ, and amplitude is at 0~100 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910224785.3A CN109807418A (en) | 2019-03-24 | 2019-03-24 | A kind of high-frequency vibration laser is from fuse welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910224785.3A CN109807418A (en) | 2019-03-24 | 2019-03-24 | A kind of high-frequency vibration laser is from fuse welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109807418A true CN109807418A (en) | 2019-05-28 |
Family
ID=66610108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910224785.3A Pending CN109807418A (en) | 2019-03-24 | 2019-03-24 | A kind of high-frequency vibration laser is from fuse welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109807418A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761171A (en) * | 2019-12-24 | 2020-10-13 | 哈尔滨工业大学（威海） | Auxiliary welding wire vibration device special for electric arc additive |
| CN112719571A (en) * | 2020-12-28 | 2021-04-30 | 浙江工业大学 | Handheld material increase repair laser wire feeding head |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1808256A1 (en) * | 2006-01-17 | 2007-07-18 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Method and apparatus for welding using consumable electrode |
| JP2009148790A (en) * | 2007-12-20 | 2009-07-09 | Kobe Steel Ltd | Consumable electrode type welding torch |
| CN101954542A (en) * | 2010-09-29 | 2011-01-26 | 哈尔滨工业大学 | Laser wire filling-melt injection welding method for particle-reinforced metal based composite material |
| CN102922150A (en) * | 2012-11-08 | 2013-02-13 | 哈尔滨工业大学 | Wire fusing method of laser liquid filling welding |
| CN104668690A (en) * | 2015-02-09 | 2015-06-03 | 北京科技大学 | Device and method for assisting fluxless brazing by ultrasonic vibrating welding wire |
| KR101713110B1 (en) * | 2016-04-20 | 2017-03-08 | 한국기계연구원 | Apparatus for supplying wire using oscillator |
| CN107414227A (en) * | 2017-07-06 | 2017-12-01 | 深圳云麟科技有限公司 | Method for laser welding and device |
| CN108817712A (en) * | 2018-08-30 | 2018-11-16 | 哈尔滨工业大学（威海） | A kind of swing of magnetic control heated filament laser soldering device, methods and applications |
-
2019
- 2019-03-24 CN CN201910224785.3A patent/CN109807418A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1808256A1 (en) * | 2006-01-17 | 2007-07-18 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Method and apparatus for welding using consumable electrode |
| JP2007190564A (en) * | 2006-01-17 | 2007-08-02 | Kobe Steel Ltd | Consumable electrode type welding method and welding apparatus |
| JP2009148790A (en) * | 2007-12-20 | 2009-07-09 | Kobe Steel Ltd | Consumable electrode type welding torch |
| CN101954542A (en) * | 2010-09-29 | 2011-01-26 | 哈尔滨工业大学 | Laser wire filling-melt injection welding method for particle-reinforced metal based composite material |
| CN102922150A (en) * | 2012-11-08 | 2013-02-13 | 哈尔滨工业大学 | Wire fusing method of laser liquid filling welding |
| CN104668690A (en) * | 2015-02-09 | 2015-06-03 | 北京科技大学 | Device and method for assisting fluxless brazing by ultrasonic vibrating welding wire |
| KR101713110B1 (en) * | 2016-04-20 | 2017-03-08 | 한국기계연구원 | Apparatus for supplying wire using oscillator |
| CN107414227A (en) * | 2017-07-06 | 2017-12-01 | 深圳云麟科技有限公司 | Method for laser welding and device |
| CN108817712A (en) * | 2018-08-30 | 2018-11-16 | 哈尔滨工业大学（威海） | A kind of swing of magnetic control heated filament laser soldering device, methods and applications |
Non-Patent Citations (1)
| Title |
|---|
| 曲远方: "《现代陶瓷材料及技术》", 31 May 2008, 华东理工大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761171A (en) * | 2019-12-24 | 2020-10-13 | 哈尔滨工业大学（威海） | Auxiliary welding wire vibration device special for electric arc additive |
| CN112719571A (en) * | 2020-12-28 | 2021-04-30 | 浙江工业大学 | Handheld material increase repair laser wire feeding head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3209369U (en) | A system for starting and using a combination of filler wire feed and high-intensity energy source for root-pass welding of inner diameter of clad pipe | |
| US20240189942A1 (en) | Laser welding, cladding, and/or additive manufacturing systems and methods of laser welding, cladding, and/or additive manufacturing | |
| CN107999916B (en) | A kind of compound silk filling melt-brazing method of the double light beam laser-TIG of dissimilar material | |
| JP4753452B2 (en) | Heat treatment method for weld beads | |
| CN101862913B (en) | Electromagnetic current coupling field assisted hybrid melting-brazing method for laser-TIG arc and equipment | |
| JP2008119750A (en) | Laser brazing method | |
| MXPA04011591A (en) | Laser welding with beam oscillation. | |
| JP2004183652A (en) | Method for fabricating, modifying or repairing of single crystal or directionally solidified article | |
| NaBadalung et al. | Laser welding of a cobalt-chromium removable partial denture alloy | |
| JP2015528392A (en) | Laser cladding of superalloys with surface topology energy transfer compensation | |
| JP2010201507A (en) | Method of joining two metallic portions by tungsten inert gas welding and apparatus for carrying out this method | |
| Frostevarg et al. | Comparison of CMT with other arc modes for laser-arc hybrid welding of steel | |
| CN109807418A (en) | A kind of high-frequency vibration laser is from fuse welding method | |
| CN101954542A (en) | Laser wire filling-melt injection welding method for particle-reinforced metal based composite material | |
| CN103639604B (en) | A kind of melt-brazing method based on liquid droplets control and device thereof | |
| JP2007185683A (en) | Crack repairing method | |
| CN111515536A (en) | Self-melting wire laser deep melting welding method | |
| CN104014933A (en) | Laser-TOPTIG hybrid welding method | |
| CN107824972A (en) | Laser welding method for titanium-aluminum dissimilar metal splice joint | |
| JP5532629B2 (en) | Laser cladding valve sheet forming method and laser cladding valve sheet forming apparatus | |
| CN108655527A (en) | A kind of ultrasonic wave is without brazing flux aluminum pipe brazing method and device | |
| CN109807419B (en) | Double-laser scanning molten strip welding method | |
| JP2005279744A (en) | Butt welding method of different kind of material using high energy beam | |
| JP2013052445A (en) | Laser welding method | |
| CN113967787A (en) | Laser welding method |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190528 |
|
| RJ01 | Rejection of invention patent application after publication |