CN103192181A - Laser welding method for medium steel plates - Google Patents
Laser welding method for medium steel plates Download PDFInfo
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- CN103192181A CN103192181A CN2013101374197A CN201310137419A CN103192181A CN 103192181 A CN103192181 A CN 103192181A CN 2013101374197 A CN2013101374197 A CN 2013101374197A CN 201310137419 A CN201310137419 A CN 201310137419A CN 103192181 A CN103192181 A CN 103192181A
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- 238000003466 welding Methods 0.000 title claims abstract description 87
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 33
- 239000010959 steel Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005476 soldering Methods 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000010891 electric arc Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of material welding, and discloses a laser welding method for medium steel plates with thicknesses of 5-18mm. The laser welding method includes firstly, processing to-be-welded steel plates in required sizes and chamfering at to-be-welded positions; secondarily, assembling the to-be-welded steel plates to enable chamfers of the assembled steel plates to form I-shaped welded joints; thirdly, fixing the assembled steel plates on a welding rack; and fourthly, performing one-time welding on the I-shaped welded joints of the steel plates by a laser welding apparatus until through welding is completed. Welded joints with thicknesses of 5-18mm can be formed through one-time welding by the aid of the laser welding apparatus, welding speed is greatly increased, welding contraction ranges from 0.1mm to 0.8mm, indexes such as welded joint strength, toughness and chemical component after welding can meet or are superior to the requirements on arc welding techniques of conventional filling welding materials.
Description
Technical field
The present invention relates to the method for laser welding of material welding technology field, particularly a kind of medium plate.
Background technology
Along with the high speed development of solder technology, solder technology has obtained significant progress in recent years.And for the welding method of cut deal, mainly experienced three developing stage: manual electric arc welding, automatic arc welding, high energy beam weldering automatically.Manual electric arc welding is mainly manual electric arc welding, and its speed of welding is slow, and efficient is low, and working strength is big, and welding surroundings is poor, and weldquality is relevant with welder's technical ability, at present only at miniature workpiece and can not realize that the field of automation welding uses; The representative of automatic arc welding method is submerged-arc welding, and it has solved the low shortcoming of manual electric arc welding welding efficiency, but its welding deformation is big and inhomogeneous, and workpiece is subjected to the restriction of welding position, mainly comparatively generally uses in large-sized structural parts; Automatically the high energy beam weldering mainly contains electron-bombardment welding and Laser Welding, and the electron-bombardment welding welding quality is good, and speed is fast, be out of shape little, but it is subjected to the restriction of vacuum chamber, is not suitable for large-sized structural parts; Laser Welding is the welding method that had just grown up in recent years, and it not only has whole advantages of electron-bombardment welding, and has characteristics well flexible and that not limited by vacuum chamber, so can weld the most weldments that comprise large and complex structure spare.
Along with the development of laser welding technology, laser weld has been widely used in fields such as space flight, automobile, accurate welding.But the power of the laser-welding machine that uses is lower than 5KW mostly at present, and throat thickness is generally less than 5mm.Be 5 to 18mm medium plate for thickness, can not realize that disposable welding finishes, and weld seam can not reach designing requirement.
Summary of the invention
The objective of the invention is provides a kind of method for laser welding of medium plate in order to solve the problems of the technologies described above, and in the hope of realizing the welding to medium plate, improves welding efficiency, improves weldquality.
The technical scheme that the present invention takes is:
A kind of method for laser welding of medium plate, the thickness of described medium plate are 5 to 18mm, it is characterized in that, comprise the steps: the first step: steel plate to be welded is machined to required size, at position to be welded finished edge; Second step: the assembling steel plate to be welded makes the groove of assembling back steel plate form I type weld seam; The 3rd step: the steel plate after will assembling is fixed on the welding stand; The 4th step: weld with the I type weld seam of laser-welding machine to steel plate, until through welding.
Further, in described the 4th step, described laser weld is with penetration of steel plate of 5 to 18mm thickness.
Further, in described the 4th step, described laser instrument is all-position welding to the welding process of the I type weld seam of described steel plate.
Further, described laser-welding machine is the optical-fiber laser soldering apparatus, and the power of laser beam is 3KW to 15.2KW, and defocusing amount is-40mm to 40mm.
The invention has the beneficial effects as follows:
(1) with laser-welding machine forming a solder 5-18mm thickness weld seam, significantly improved speed of welding, it only is 0.1-0.8mm that welding is shunk;
(2) indexs such as postwelding weld strength, toughness, chemical composition all reach or are better than the arc-welding welding procedure of tradition filling welding material.
Description of drawings
Accompanying drawing 1 is the scheme of installation of two blocks of typical case's butt joint steel plates;
Accompanying drawing 2 is scheme of installations of two blocks of typical corner connection steel plates;
Accompanying drawing 3 is flow charts of the present invention.
Label in the accompanying drawing is respectively:
1. steel plate; 2. steel plate;
3.I type weld seam; S1-S4. flow chart step.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the method for laser welding of medium plate of the present invention.
Referring to accompanying drawing 1,2,3, the thickness of medium plate is 5-18mm, two block plates 1,2 be docked or the typical finished product of corner connection Cheng Rutu, and its welding method is as follows:
The first step: steel plate to be welded 1,2 is machined to required size, at position to be welded finished edge (step S1 among the figure), can be according to the different situations of steel plate to be welded, the difference butt joint of design groove or corner joint form (as at the bottom of step joint, scarfbutt joint, the lock to center tap etc.).
Second step: assembling steel plate to be welded 1,2 makes the groove of assembling back steel plate form step S2 among the I type weld seam 3(figure).The big I of width of I type weld seam according to the size of steel plate corresponding to different plate sizes.When assembling steel plate to be welded, can select suitable frock.
The 3rd step: the steel plate 1,2 after will assembling is fixed on the welding stand (step S3 among the figure).
The 4th step: with laser-welding machine the I type weld seam 3 of steel plate is carried out disposable welding, until through welding (step S4 among the figure).Laser-welding machine is chosen as the optical-fiber laser soldering apparatus, and the power of laser beam is 3KW to 15.2KW, and defocusing amount is-40mm to 40mm.
To through welding, the welding position is the optional position with the above-mentioned weld seam of the disposable welding of Laser Welding, and angle, the welding direction of laser incident ray and workpiece are not limit, and realizes all-position welding, during welding if for I shape groove then the relative angle of workpiece do not limit; With high power laser light soldering apparatus forming a solder 5-18mm thickness weld seam, speed of welding is not limit, can significantly improve speed of welding, can not add and fill silk, it only be 0.1-0.8mm that welding is shunk, and indexs such as weld strength, toughness, chemical composition all reach or be better than the arc-welding welding procedure of tradition filling welding material.In addition, also can increase tack weld and modify weld seam according to arts demand, also can divide multistage to finish as required.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. the method for laser welding of a medium plate, the thickness of described medium plate are 5 to 18mm, it is characterized in that, comprise the steps:
The first step: steel plate to be welded is machined to required size, at position to be welded finished edge;
Second step: the assembling steel plate to be welded makes the groove of assembling back steel plate form I type weld seam;
The 3rd step: the steel plate after will assembling is fixed on the welding stand;
The 4th step: with the I type weld seam welding of laser-welding machine to steel plate, until through welding.
2. the method for laser welding of medium plate according to claim 1 is characterized in that: in described the 4th step, described laser weld is with penetration of steel plate of 5 to 18mm thickness.
3. the method for laser welding of medium plate according to claim 1 is characterized in that: in described the 4th step, described laser instrument is all-position welding to the welding process of the I type weld seam of described steel plate.
4. according to the method for laser welding of each described medium plate in the claim 1 to 3, it is characterized in that: described laser-welding machine is the optical-fiber laser soldering apparatus, and the power of laser beam is 3KW to 15.2KW, and defocusing amount is-40mm to 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101374197A CN103192181A (en) | 2013-04-19 | 2013-04-19 | Laser welding method for medium steel plates |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101374197A CN103192181A (en) | 2013-04-19 | 2013-04-19 | Laser welding method for medium steel plates |
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| CN103192181A true CN103192181A (en) | 2013-07-10 |
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| CN2013101374197A Pending CN103192181A (en) | 2013-04-19 | 2013-04-19 | Laser welding method for medium steel plates |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753023A (en) * | 2014-02-14 | 2014-04-30 | 苏州大学 | Welding method of hot-rolled nano reinforced steel plates |
| CN105149785A (en) * | 2015-10-28 | 2015-12-16 | 无锡汉神电气有限公司 | Lap joint laser welding technology for 0.5 mm aluminum alloy plate |
| CN105345262A (en) * | 2015-12-31 | 2016-02-24 | 上海第一机床厂有限公司 | Laser welding method of guide cylinder semi-casing in nuclear reactor |
| CN109014578A (en) * | 2018-10-10 | 2018-12-18 | 南京理工大学 | The laser welding system and its working method of included bevel function |
Citations (5)
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|---|---|---|---|---|
| JP2001259838A (en) * | 2000-03-23 | 2001-09-25 | Daihen Corp | Ac pulse mig/mag welding method and power supply device |
| JP2002301582A (en) * | 2001-04-05 | 2002-10-15 | Kawasaki Heavy Ind Ltd | Thick plate welding method by combination of laser welding and TIG welding or MIG welding |
| CN101716701A (en) * | 2009-12-10 | 2010-06-02 | 哈尔滨工业大学 | Method for realizing swing welding with laser-GMA electric arc hybrid welding device |
| CN102225494A (en) * | 2011-06-07 | 2011-10-26 | 上海交通大学 | Laser arc composite twin wire narrow groove welding method |
| CN102294545A (en) * | 2010-06-23 | 2011-12-28 | 宝山钢铁股份有限公司 | Laser penetration welding seam formation control method for Hass alloy conductive roller |
-
2013
- 2013-04-19 CN CN2013101374197A patent/CN103192181A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001259838A (en) * | 2000-03-23 | 2001-09-25 | Daihen Corp | Ac pulse mig/mag welding method and power supply device |
| JP2002301582A (en) * | 2001-04-05 | 2002-10-15 | Kawasaki Heavy Ind Ltd | Thick plate welding method by combination of laser welding and TIG welding or MIG welding |
| CN101716701A (en) * | 2009-12-10 | 2010-06-02 | 哈尔滨工业大学 | Method for realizing swing welding with laser-GMA electric arc hybrid welding device |
| CN102294545A (en) * | 2010-06-23 | 2011-12-28 | 宝山钢铁股份有限公司 | Laser penetration welding seam formation control method for Hass alloy conductive roller |
| CN102225494A (en) * | 2011-06-07 | 2011-10-26 | 上海交通大学 | Laser arc composite twin wire narrow groove welding method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753023A (en) * | 2014-02-14 | 2014-04-30 | 苏州大学 | Welding method of hot-rolled nano reinforced steel plates |
| CN103753023B (en) * | 2014-02-14 | 2016-08-17 | 苏州大学 | The welding method of hot rolling nano reinforcement steel plate |
| CN105149785A (en) * | 2015-10-28 | 2015-12-16 | 无锡汉神电气有限公司 | Lap joint laser welding technology for 0.5 mm aluminum alloy plate |
| CN105345262A (en) * | 2015-12-31 | 2016-02-24 | 上海第一机床厂有限公司 | Laser welding method of guide cylinder semi-casing in nuclear reactor |
| CN109014578A (en) * | 2018-10-10 | 2018-12-18 | 南京理工大学 | The laser welding system and its working method of included bevel function |
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Application publication date: 20130710 |