CN103358022A - Laser welding method for turbocharger shell - Google Patents
Laser welding method for turbocharger shell Download PDFInfo
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- CN103358022A CN103358022A CN2012100825700A CN201210082570A CN103358022A CN 103358022 A CN103358022 A CN 103358022A CN 2012100825700 A CN2012100825700 A CN 2012100825700A CN 201210082570 A CN201210082570 A CN 201210082570A CN 103358022 A CN103358022 A CN 103358022A
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Abstract
The invention discloses a laser welding method for a turbocharger shell and belongs to the technical field of laser welding. The method includes integrally welding two side shells of a turbocharger by laser welding, and allowing a robot control system to control a laser welding head of a robot to perform laser welding. The laser welding head locates right above the turbocharger shell. The turbocharger shell is fixed on a welding positioner. Motion of the welding positioner is controlled by the robot control system. Through the laser welding method, the problem of shorter service life of an arc-welded turbocharger shell, caused by large welding deformation, large heat affected area and proneness to thermal cracking, is solved, and the problems of complexity of integral turbocharger shell processing technique, high production input and high cost in casting technique are solved.
Description
Technical field
The present invention relates to the laser welding technology field, be specifically related to a kind of method for laser welding of turbocharger housing.
Background technology:
Present automobile turbocharger arc welding formula turbocharger housing, because the input of arc welding heat is large, housing is larger in the temperature distortion of when welding, causes the housing precision not high, causes to enter that the turbocharger air flow is inconsistent to cause the turbine rotation sometimes fast and sometimes slow; Welding heat affected zone is large, thereby easily the heat cracking reduces the problem in service life.The integrated turbocharger housing processing technology of casting technique is complicated, and manufacturing has high input, and cost is higher.
Summary of the invention:
The object of the present invention is to provide a kind of method for laser welding of turbocharger housing, thereby with solve that the welding deformation that arc welding formula turbocharger housing exists is large, the heat affected area is large and easily the heat cracking reduce the problem in service life, and the problem that integrated turbocharger housing processing technology is complicated, manufacturing has high input, cost is higher of casting technique.
Technical scheme of the present invention is:
A kind of method for laser welding of turbocharger housing, the method are to adopt method for laser welding that two side bodies of turbocharger are integrally welded.
Described laser weld by the robot control system control with laser welding system carry out, laser welding system is positioned at directly over the turbocharger housing, the housing of described turbocharger is fixed on the positioner, and the motion of described positioner is controlled by robot control system.
Described positioner refers to drag workpiece to be welded, makes it treat that welding line moves to the equipment that ideal position welds operation.
Two side bodies of described turbocharger are fixed on the positioner by anchor clamps, and turbocharger housing keeps relative static with positioner during welding, and turbocharger housing drives motion by positioner.
Described positioner can be realized clockwise and be rotated counterclockwise, and its speed is controlled.
The light source of laser is sent by high-power optical fiber laser, and its peak power output is 6000W; The bright dipping of laser instrument is controlled by robot control system.
During laser weld, laser welding system is apart from the surface of shell 40～200mm of turbocharger; Laser power 4000～6000W, the focus lamp focal length 100～300mm of laser welding system, the focal length 100～200mm of collimating mirror, fibre diameter 100～400 μ m.
Before two side bodies of turbocharger are fixed on positioner, with acetone it is cleaned.
The invention has the beneficial effects as follows:
1, novel structure of the present invention adopts method for laser welding that turbocharger two side bodies are combined together, and is basically identical with the integrated turbocharger housing performance of casting technique.
2, the inventive method is simple in structure, processing technology good, low cost of manufacture, and the properties of product is better than arc welding formula turbocharger housing, and manufacturing cost is better than the integrated turbocharger housing of casting technique.
Description of drawings
Fig. 1 is laser soldering device schematic diagram of the present invention.
Fig. 2 is a side body of turbocharger of the present invention.
Fig. 3 is the opposite side housing of turbocharger of the present invention.
Fig. 4 is the turbocharger housing of laser weld of the present invention.
Among the figure: 1 is robot control system; 2 is laser instrument; 3 is robot; 4 are laser welding system; 5 is turbocharger housing; 6 is positioner.
The specific embodiment
Below in conjunction with drawings and Examples in detail the present invention is described in detail.
As Figure 1-3, the present invention passes through the bright dipping that robot control system 1 is controlled rise, descending motion and the laser instrument 2 of the rotation of positioner 6, laser welding system 4.When laser weld, turbocharger housing 5 keeps relative static with positioner 6, and turbocharger housing 5 is driven by positioner 6 and rotates; Positioner 6 can realize clockwise and be rotated counterclockwise, and its control integration is in robot control system 1, and its speed is adjustable.
In the method for the invention, at first utilize acetone that the turbocharger housing 5 of matched in clearance is cleaned, then it is fixed on the positioner 6 by anchor clamps, recycling is welded by laser welding system 4 Emission Lasers above turbocharger housing 5 that robot 3 controls, and above welding process is all finished under robot and the positioner coordinated movement of various economic factors.
Service machine people control system is produced model SIASUN-RD120 in following examples by FamTom Hegima Co., Ltd; Used laser instrument is produced by IPG, model YLS-6000, its peak power output 6000W; Positioner is produced by FamTom Hegima Co., Ltd, model SIASUN-DP20.
Turbocharger housing (material: stainless steel, thickness of workpiece 2mm) is carried out laser weld, and concrete steps are as follows:
1) surface with two side bodies of turbocharger cleans up with acetone soln, removes greasy dirt and the impurity on surface.
2) turbocharger housing is fixed on the positioner, utilizes anchor clamps to step up, make it relative with positioner static, and make positioner be positioned at laser welding system under.
3) certain altitude is lifted in laser welding system, apart from turbocharger housing surface 40mm; Wherein the focus lamp focal length of laser head is 100mm, and the focal length of collimating mirror is 150mm, and fibre diameter is 200 μ m.
4) the rotating welding positioner drives the turbocharger housing rotation, makes the linear velocity of turbocharger housing reach 1m/min～5m/min, rotates 30 ° of angles again.
5) positioner rotates simultaneously, laser head is dropped to welding and assembling height directly weld, and laser power keeps 4000W need not change.
6) stop Laser emission after welding is finished, stop positioner and rotate, take off workpiece.
The present embodiment adopts method for laser welding that turbocharger two side bodies are combined together (Fig. 4), and performance sees Table 1 after the welding.
Difference from Example 1 is: thickness of workpiece 2.3mm; Laser power keeps 4200W constant during welding, and laser welding system is apart from the surperficial 200mm of turbocharger housing; Wherein the focus lamp focal length of laser head is 300mm, and the focal length of collimating mirror is 100mm, and fibre diameter is 150 μ m.Performance sees Table 1 after the welding.
Difference from Example 1 is: thickness of workpiece 2.5mm, and laser power keeps 4500W constant during welding, and laser welding system is apart from the surperficial 100mm of turbocharger housing; Wherein the focus lamp focal length of laser head is 200mm, and the focal length of collimating mirror is 160mm, and fibre diameter is 300 μ m.Performance sees Table 1 after the welding.
Embodiment 4
Difference from Example 1 is: thickness of workpiece 2.8mm, and laser power keeps 4800W constant during welding, and laser welding system is apart from the surperficial 60mm of turbocharger housing; Wherein the focus lamp focal length of laser head is 200mm, and the focal length of collimating mirror is 200mm, and fibre diameter is 400 μ m.Performance sees Table 1 after the welding.
Difference from Example 1 is: thickness of workpiece 3.2mm, and laser power keeps 5500W constant during welding, and laser welding system is apart from the surperficial 180mm of turbocharger housing; Wherein the focus lamp focal length of laser head is 240mm, and the focal length of collimating mirror is 120mm, and fibre diameter is 200 μ m.Performance sees Table 1 after the welding.
Can be found out by the data in the table 1, adopt the turbocharger housing of the present invention's welding, its performance is better than arc welding formula turbocharger housing, and is basically identical with the integrated turbocharger housing performance of casting technique.
Table 1
Claims (7)
1. the method for laser welding of a turbocharger housing is characterized in that: the method is to adopt method for laser welding that two side bodies of turbocharger are integrally welded.
2. method for laser welding according to claim 1, it is characterized in that: described laser weld by the robot control system control with laser welding system carry out, laser welding system is positioned at directly over the turbocharger housing, the housing of described turbocharger is fixed on the positioner, and the motion of described positioner is controlled by robot control system.
3. method for laser welding according to claim 2, it is characterized in that: two side bodies of described turbocharger are fixed on the positioner by anchor clamps, turbocharger housing keeps relative static with positioner during welding, and turbocharger housing drives motion by positioner.
4. method for laser welding according to claim 2 is characterized in that: described positioner can be realized clockwise and be rotated counterclockwise, and its speed is controlled.
5. method for laser welding according to claim 1, it is characterized in that: the light source of laser is sent by high-power optical fiber laser, and its peak power output is 6000W; The bright dipping of laser instrument is controlled by robot control system.
6. method for laser welding according to claim 1, it is characterized in that: during laser weld, laser welding system is apart from the surface of shell 40～200mm of turbocharger; Laser power 4000～6000W, the focus lamp focal length 100～300mm of laser welding system, the focal length 100～200mm of collimating mirror, fibre diameter 100～400 μ m.
7. method for laser welding according to claim 2 is characterized in that: before two side bodies of turbocharger are fixed on positioner, with acetone it is cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100825700A CN103358022A (en) | 2012-03-26 | 2012-03-26 | Laser welding method for turbocharger shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100825700A CN103358022A (en) | 2012-03-26 | 2012-03-26 | Laser welding method for turbocharger shell |
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| CN103358022A true CN103358022A (en) | 2013-10-23 |
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| CN2012100825700A Pending CN103358022A (en) | 2012-03-26 | 2012-03-26 | Laser welding method for turbocharger shell |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105750731A (en) * | 2014-12-17 | 2016-07-13 | 大族激光科技产业集团股份有限公司 | Laser welding device for automobile shift fork |
| CN107363459A (en) * | 2017-06-30 | 2017-11-21 | 安徽悦众车身装备有限公司 | Automobile gear tank shell clamps rotation processing seat |
| CN110480164A (en) * | 2019-09-25 | 2019-11-22 | 中航宝胜电气股份有限公司 | A kind of gas chamber automatically welding workstation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480760A (en) * | 2008-01-10 | 2009-07-15 | 中国科学院力学研究所 | Laser welding method of turbine disc and rotating shaft |
| CN101517209A (en) * | 2006-09-21 | 2009-08-26 | 大陆汽车有限责任公司 | Element for generating a magnetic field |
| US20090269206A1 (en) * | 2008-04-25 | 2009-10-29 | Caterpillar Inc. | Process for building up an edge of a machine component, and machine component remanufacturing strategy |
| CN102308062A (en) * | 2008-12-18 | 2012-01-04 | 尼尔森焊钉焊接有限公司 | Turbine wheel and shaft joining processes |
-
2012
- 2012-03-26 CN CN2012100825700A patent/CN103358022A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101517209A (en) * | 2006-09-21 | 2009-08-26 | 大陆汽车有限责任公司 | Element for generating a magnetic field |
| CN101480760A (en) * | 2008-01-10 | 2009-07-15 | 中国科学院力学研究所 | Laser welding method of turbine disc and rotating shaft |
| US20090269206A1 (en) * | 2008-04-25 | 2009-10-29 | Caterpillar Inc. | Process for building up an edge of a machine component, and machine component remanufacturing strategy |
| CN102308062A (en) * | 2008-12-18 | 2012-01-04 | 尼尔森焊钉焊接有限公司 | Turbine wheel and shaft joining processes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750731A (en) * | 2014-12-17 | 2016-07-13 | 大族激光科技产业集团股份有限公司 | Laser welding device for automobile shift fork |
| 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 |
| CN107363459A (en) * | 2017-06-30 | 2017-11-21 | 安徽悦众车身装备有限公司 | Automobile gear tank shell clamps rotation processing seat |
| CN110480164A (en) * | 2019-09-25 | 2019-11-22 | 中航宝胜电气股份有限公司 | A kind of gas chamber automatically welding workstation |
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Application publication date: 20131023 |