CN102009274A - T-shaped joint single-beam laser and TIG (Tungsten Insert gas) compound single-sided welding and double-sided shaping method - Google Patents
T-shaped joint single-beam laser and TIG (Tungsten Insert gas) compound single-sided welding and double-sided shaping method Download PDFInfo
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- CN102009274A CN102009274A CN 200910187245 CN200910187245A CN102009274A CN 102009274 A CN102009274 A CN 102009274A CN 200910187245 CN200910187245 CN 200910187245 CN 200910187245 A CN200910187245 A CN 200910187245A CN 102009274 A CN102009274 A CN 102009274A
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Abstract
The invention discloses a T-shaped joint single-beam laser and TIG (Tungsten Insert gas) compound single-sided welding and double-sided shaping method. A transverse plate and a vertical plate are arranged in a T shape; a single laser beam enters perpendicular to the surface of the transverse plate; a TIG welding arc and a single laser beam are arranged in the same plane along the welding direction; and the action point of the laser-TIG compound weld and a member to be welded is located on the transverse plate. The invention has the advantages that the T-shaped joint and the high-reflectivity material are welded with lower laser power by adopting the laser and TIG compound heat source welding, the requirement of the assembling precision of the member to be welded is lowered, the composition of relative systems of the laser hot source is simplified by adopting single laser beam incidence and the welding efficiency is improved as the T-shaped joint is welded by the single-sided welding in one time.
Description
Technical field
The invention belongs to the materials processing technology field, relate to a kind of welding method, particularly relate to a kind of T connector laser-TIG composite welding one side welding with back formation method.
Background technology
In aviation, need to use a large amount of light sheet T type structures.Riveted joint is the main coupling method of light sheet T type structure at present, but there are shortcomings such as structure is discontinuous, production efficiency is lower, waste material, increase construction weight in riveted joint, is difficult to satisfy the needs of aviation production development.Plurality of advantages such as laser weld is compared traditional welding method, has the welding efficiency height, and welding deformation is little have vast potential for future development.Weld for T connector at present, usually adopt single beam laser to weld in proper order from the riser both sides respectively, or double beams laser welds simultaneously from the riser both sides, but all exist production efficiency low, appearance of weld is difficult to control, the shortcoming that relevant device is comparatively complicated, the high assembly precision of laser weld and the high reflectance of welding material have all limited the further application of laser weld in this area simultaneously.
TIG (Tungsten Inert Gas, abbreviation TIG) is meant with pure tungsten or activation tungsten (thorium tungsten, cerium tungsten, zirconium tungsten, lanthanum tungsten) as the Heliarc welding of nonconsumable electrode, utilizes the electric arc between tungsten electrode and the workpiece to make metal molten and forms weld seam.Tungsten electrode does not melt in the welding process, only plays electrode.While sends argon gas to by the nozzle of welding torch or helium is protected.Also can add metal as required in addition.
The major advantage of TIG welding is that can to weld big material ranges wide. comprise that thickness is at 0.6mm and above workpiece thereof, material comprises steel alloy, aluminium, magnesium, copper and alloy thereof, grey cast-iron, commonly does, various bronze, nickel, silver, titanium and lead. main application be welding thin with workpiece intermediate gauge, on thicker cross section, use as root run.
Summary of the invention
The object of the present invention is to provide a kind of welding method of T connector.This method adopts single beam laser-TIG composite heat power supply, and single laser beam vertical incidence is coupled with TIG weldering electric arc and welds, and is aided with the anchor clamps cooling forming.By adjusting the technological parameter of laser beam, TIG weldering and relevant anchor clamps, can realize welding to the T connector of different size.
Concrete scheme is:
The compound one side welding with back formation welding method of a kind of T connector single beam laser-TIG, transverse slat and riser are the T-shape setting, single laser beam is perpendicular to transverse slat surface incident, TIG weldering electric arc and single laser beam arrangement be in along in the same plane of welding direction, the compound weldering of laser-TIG and treat that the application point of weldment is positioned on the transverse slat.
Be auxiliary weld seam cooling forming, thereby once weld the welding forming of finishing T connector, the nearly position while welding in riser both sides is provided with the back-protective device of air.
For obtaining better technique effect, the scope of TIG weldering electric arc and angle that single laser beam constitutes is 15 °～50 °.
Advantage of the present invention is: adopt laser-TIG composite heat power supply welding, realize with the welding of low laser power to T connector and highly reflective material, and reduce the assembly precision requirement for the treatment of weldment; Adopt single laser beam incident, simplify the composition of laser thermal source related system; Single welding is once finished the T connector welding, improves welding efficiency.
Basic principle of the present invention is:
Before the welding, transverse slat and riser are the T-shape setting, single laser beam is perpendicular to the incident of transverse slat upper surface, and TIG weldering electric arc and single laser beam arrangement be in along in the same plane of welding direction, and is mutually certain angle.The compound weldering of laser-TIG with treat that the application point of weldment is positioned on the transverse slat; in the welding process; the electric arc that the TIG weldering forms has reduced the plasma cloud density that laser weld produces; also treat weldment and carry out preheating; significantly improved the absorptivity of laser like this; formed weld penetration increases; make the T connector place produce enough metal melting amounts; the auxiliary rapid cooling forming of weld seam when the relevant anchor clamps that are arranged at the nearly position while welding in riser both sides provide back-protective gas, thus once the welding of T connector is finished in welding.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, before the welding, utilize the associated welds anchor clamps with the fixing form right angle joint of transverse slat 1 and riser 2, single laser beam 3 and TIG welding gun 4 are arranged in transverse slat 1 top, be in along in the same plane of welding direction, constitute angle scope be 15 °～50 °.Single laser beam 3 is perpendicular to transverse slat 1 upper surface incident; the compound weldering of laser-TIG with treat that the application point of weldment is positioned on the transverse slat 1; incoming laser beam 3 intercouples with TIG weldering electric arc 7 in the welding process; the T-shape joint that constitutes at transverse slat 1 and riser 2 forms the deep penetration welding seam; auxiliary weld seam 6 cooling formings when the relevant anchor clamps 5 that are positioned at the nearly position while welding in riser both sides provide back-protective gas, thus once the welding forming of T connector is finished in welding.
The present invention detects after welding, and the weld seam total length is shaped, x-ray examination does not have internal flaw, the weldment bulk deformation is little.
Claims (3)
1. compound one side welding with back formation welding method of T connector single beam laser-TIG, it is characterized in that: transverse slat and riser are the T-shape setting, single laser beam is perpendicular to transverse slat surface incident, TIG weldering electric arc and single laser beam arrangement be in along in the same plane of welding direction, the compound weldering of laser-TIG and treat that the application point of weldment is positioned on the transverse slat.
2. welding method according to claim 1 is characterized in that: the nearly position while welding in riser both sides is provided with the back-protective device of air.
3. welding method according to claim 1 is characterized in that: the scope of TIG weldering electric arc and angle that single laser beam constitutes is 15 °～50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910187245 CN102009274A (en) | 2009-09-04 | 2009-09-04 | T-shaped joint single-beam laser and TIG (Tungsten Insert gas) compound single-sided welding and double-sided shaping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910187245 CN102009274A (en) | 2009-09-04 | 2009-09-04 | T-shaped joint single-beam laser and TIG (Tungsten Insert gas) compound single-sided welding and double-sided shaping method |
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| CN102009274A true CN102009274A (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910187245 Pending CN102009274A (en) | 2009-09-04 | 2009-09-04 | T-shaped joint single-beam laser and TIG (Tungsten Insert gas) compound single-sided welding and double-sided shaping method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922151A (en) * | 2012-11-13 | 2013-02-13 | 常州太平洋电力设备(集团)有限公司 | Steel plate laser non-filling welding process for sealed gas tank |
| CN103687691A (en) * | 2011-07-19 | 2014-03-26 | 麦格纳国际公司 | Method of welding work pieces together |
| CN104028893A (en) * | 2014-05-19 | 2014-09-10 | 武汉钢铁(集团)公司 | Method for improving optical fiber laser-MIG arc hybrid welding back forming |
| CN104942439A (en) * | 2015-03-26 | 2015-09-30 | 上海工程技术大学 | 907A high-strength steel T-shaped joint laser welding and machining method |
| CN105478971A (en) * | 2015-12-30 | 2016-04-13 | 西安轨道交通装备有限责任公司 | Thin plate welding method |
| CN107639325A (en) * | 2017-09-27 | 2018-01-30 | 阳江市五金刀剪产业技术研究院 | A kind of method for welding blade and cover plate |
| CN109202226A (en) * | 2018-09-27 | 2019-01-15 | 天津大学 | Two-sided double arc piercing welding methods based on K-TIG |
| CN111360408A (en) * | 2020-03-18 | 2020-07-03 | 上海中船临港船舶装备有限公司 | H04MnNi2Ti steel sandwich structure laser GMAW composite welding method |
| CN112207442A (en) * | 2020-10-14 | 2021-01-12 | 华中科技大学 | Method for inhibiting thick plate laser penetration welding collapse defect and gas loading device |
-
2009
- 2009-09-04 CN CN 200910187245 patent/CN102009274A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687691A (en) * | 2011-07-19 | 2014-03-26 | 麦格纳国际公司 | Method of welding work pieces together |
| CN102922151A (en) * | 2012-11-13 | 2013-02-13 | 常州太平洋电力设备(集团)有限公司 | Steel plate laser non-filling welding process for sealed gas tank |
| CN104028893A (en) * | 2014-05-19 | 2014-09-10 | 武汉钢铁(集团)公司 | Method for improving optical fiber laser-MIG arc hybrid welding back forming |
| CN104942439A (en) * | 2015-03-26 | 2015-09-30 | 上海工程技术大学 | 907A high-strength steel T-shaped joint laser welding and machining method |
| CN105478971A (en) * | 2015-12-30 | 2016-04-13 | 西安轨道交通装备有限责任公司 | Thin plate welding method |
| CN107639325A (en) * | 2017-09-27 | 2018-01-30 | 阳江市五金刀剪产业技术研究院 | A kind of method for welding blade and cover plate |
| CN107639325B (en) * | 2017-09-27 | 2020-07-03 | 阳江市五金刀剪产业技术研究院 | Method for welding blade and cover plate |
| CN109202226A (en) * | 2018-09-27 | 2019-01-15 | 天津大学 | Two-sided double arc piercing welding methods based on K-TIG |
| CN111360408A (en) * | 2020-03-18 | 2020-07-03 | 上海中船临港船舶装备有限公司 | H04MnNi2Ti steel sandwich structure laser GMAW composite welding method |
| CN111360408B (en) * | 2020-03-18 | 2024-04-05 | 上海中船临港船舶装备有限公司 | Laser GMAW composite welding method for H04MnNi2Ti steel sandwich structure |
| CN112207442A (en) * | 2020-10-14 | 2021-01-12 | 华中科技大学 | Method for inhibiting thick plate laser penetration welding collapse defect and gas loading device |
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Application publication date: 20110413 |