CN101618479A - Control method of stir friction welding seam deformation - Google Patents
Control method of stir friction welding seam deformation Download PDFInfo
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- CN101618479A CN101618479A CN200910115722A CN200910115722A CN101618479A CN 101618479 A CN101618479 A CN 101618479A CN 200910115722 A CN200910115722 A CN 200910115722A CN 200910115722 A CN200910115722 A CN 200910115722A CN 101618479 A CN101618479 A CN 101618479A
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- welding
- rolling
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- deformation
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- 238000003466 welding Methods 0.000 title claims abstract description 41
- 238000003756 stirring Methods 0.000 title claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 238000005476 soldering Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 210000001503 Joints Anatomy 0.000 abstract 2
- 229920001169 thermoplastic Polymers 0.000 abstract 2
- 239000004416 thermosoftening plastic Substances 0.000 abstract 2
- 230000000399 orthopedic Effects 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 230000003068 static Effects 0.000 description 1
Abstract
The invention relates to a control method of stir friction welding seam deformation, which is characterized by comprising the following steps: a rolling device is connected with stir friction welding equipment and synchronously moves together with the power head of the stir friction welding equipment; after a stirring head stirs and rubs workpieces to generate heat and form welding seams, welding seam metal stays at a thermoplastic state or an interval which is slightly lower than thermoplastic temperature; and the rolling device rolls the welding seams so as to effectively extend the welding seam metal and eliminate or reduce the deformation of welding joints. The invention has the advantages of simple operation, high production efficiency, low cost because welding operation can be carried out at any time without preheating, small device volume, less equipment investment, small operating environment noise, good quality of workpiece surfaces and high straightening precision, thereby effectively ensuring good quality of postwelding joints.
Description
Technical field
The present invention relates to a kind of control method of seam deformation, relate in particular to a kind of control method of stir friction welding seam deformation.
Background technology
Friction stir welding is the position to be welded that utilizes a kind of stirring-head insertion workpiece of special shape, rotating at a high speed stirring-head makes between itself and workpiece and carries out friction stir, frictional heat makes this position metal be in the thermoplasticity state and is moving to the rear portion plastic flow from its front end under the pressure effect of stirring-head, treats that the weldment pressure welding is as a whole thereby make.
Metal to be welded does not melt in the welding process, is a kind of solid-state plasticizing method of attachment.This method can avoid occurring the various defectives relevant with melting, realizes that the high-quality of material connects.But in the agitating friction process,, certainly lead to welding residual stress, thereby cause welding deformation because metal is in the thermoplasticity state.At present, control and elimination thin plate workpiece welding stress deformation mainly adopt the orthopedic and anchor clamps clamping of postwelding in friction stir welding technology.The numerous and diverse huge equipment of the needs that these methods have, what have wastes time and energy, and what have is limited to control welding deformation effect.
For solving traditional melting welding stress deformation problem, prestretched method, static state and dynamic temperature difference pulling method were once proposed, both at home and abroad with the weldering rolled-on method, with several different methods such as weldering hammering method, weld with trailing impactive rolling methods.But aspect the control of friction stir welding welding deformation, only the Beijing Aeronautics Research Inst adopts dynamic control thin plate low stress not have distortion welding (patent No. ZL93101690.8) and adopt medium cooling and stirring friction welding method (number of patent application 200510105425.X), its basic principle is the auxiliary friction stir welding method of heat-sink system, and its equipment is comparatively complicated.
Summary of the invention
The object of the present invention is to provide a kind of control method of stir friction welding seam deformation, it can control the generation of welding stress deformation admirably, thereby improve the quality of welding point, at the stirring friction welding seam that has just formed, its metal temperature is near the plasticity temperature, utilize the disc rolling wheel to roll weld metal, it is extended offset the caused contraction of welding, reach orthopedic purpose.
The present invention is achieved like this, it is characterized in that control method is: rolling device is connected with the agitating friction soldering equipment, with the same moved further of the unit head of agitating friction soldering equipment, stirring-head is given birth to heat, formation weld seam to the workpiece agitating friction after, weld metal also is in the thermoplasticity state or is lower than the thermoplasticity temperature range slightly, the rolling device butt welded seam rolls, weld metal is effectively extended, eliminate or reduce the distortion of welding point.
Rolling device of the present invention, it comprises handle, rail plate, base, support, rolling wheel, spring, unit head, it is characterized in that handle flexibly connects rail plate, the bottom of rail plate connects base, base connects support, the fixedly connected rolling wheel of support is with spring on the support, rail plate connects unit head.
Advantage of the present invention is: 1, carries out, do not need preheating with weldering, and therefore simple to operate, production efficiency is high, cost is low; 2, described device volume is little, equipment investment is little, the operating environment noise is little, workpiece surface quality good, and orthopedic precision height can effectively guarantee the good quality of postwelding joint.
Description of drawings
Fig. 1 is the structural representation of invention.
Handle 2, rail plate 3, base 4, support 5, rolling wheel 6, spring 7, unit head in the drawings, 1,
The specific embodiment
As shown in Figure 1, rolling device of the present invention, it comprises handle 1, rail plate 2, base 3, support 4, rolling wheel 5, spring 6, unit head 7, it is characterized in that handle 1 flexibly connects rail plate 2, the bottom of rail plate 2 connects base 3, and base 3 connects support 4, support 4 fixedly connected rolling wheels 5, be with spring 6 on the support 4, rail plate 2 connects unit head 7.
Preset the spring reduction length, make it produce an elastic force rolling wheel.Regulate regulating handle, the distance of control rolling wheel minimum point and face of weld, thereby the amount of rolling of control rolling wheel butt welded seam.
Embodiment one:
With the long LD31 aluminum alloy extrusion section bar of 4000mm, the LF6 aluminum alloy plate materials of 4000mm * 300mm * 2mm, carried out agitating friction welding test.The stirring-head rotary speed is 770radmin
-1, speed of welding is 325mmmin
-1Post welding distortion as shown in Figure 2, deflection deformation amount f is 8.5mm.Adopt the present invention to carry out Deformation control, the amount of rolling of rolling wheel butt welded seam is 0.1mm, and orthopedic back deflection deformation amount f is 0.45mm.
Embodiment two:
With the long LD31 aluminum alloy extrusion section bar of 4000mm, the LF6 aluminum alloy plate materials of 4000mm * 300mm * 2mm, carried out agitating friction welding test.The stirring-head rotary speed is 960radmin
-1, speed of welding is 325mmmin
-1Post welding distortion as shown in Figure 2, deflection deformation amount f is 10.7mm.Adopt the present invention to carry out Deformation control, the amount of rolling of rolling wheel butt welded seam is 0.15mm, and orthopedic back deflection deformation amount f is 0.5mm.
Claims (2)
1, a kind of control method of stir friction welding seam deformation, it is characterized in that control method is: rolling device is connected with the agitating friction soldering equipment, with the same moved further of the unit head of agitating friction soldering equipment, stirring-head is given birth to heat, formation weld seam to the workpiece agitating friction after, weld metal also is in the thermoplasticity state or is lower than the thermoplasticity temperature range slightly, the rolling device butt welded seam rolls, weld metal is effectively extended, eliminate or reduce the distortion of welding point.
2, the control method of a kind of stir friction welding seam deformation according to claim 1, it is characterized in that described rolling device comprises handle, rail plate, base, support, rolling wheel, spring, unit head, handle flexibly connects rail plate, the bottom of rail plate connects base, base connects support, the fixedly connected rolling wheel of support is with spring on the support, rail plate connects unit head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910115722A CN101618479A (en) | 2009-07-21 | 2009-07-21 | Control method of stir friction welding seam deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910115722A CN101618479A (en) | 2009-07-21 | 2009-07-21 | Control method of stir friction welding seam deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101618479A true CN101618479A (en) | 2010-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200910115722A CN101618479A (en) | 2009-07-21 | 2009-07-21 | Control method of stir friction welding seam deformation |
Country Status (1)
| Country | Link |
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| CN (1) | CN101618479A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528218A (en) * | 2011-12-15 | 2012-07-04 | 宁夏共享集团有限责任公司 | Method for preventing deformation of large-size thin-wall annular casting during welding process |
| CN102689123A (en) * | 2012-06-14 | 2012-09-26 | 哈尔滨工业大学 | Rolling head and method for realizing re-nanocrystallization welding by adopting same |
| CN104874934A (en) * | 2015-05-28 | 2015-09-02 | 江西洪都航空工业集团有限责任公司 | Method for controlling welding joint quality of medium-carbon quenched and tempered steel during welding |
| CN105935849A (en) * | 2015-12-08 | 2016-09-14 | 天津新瑞微联科技有限公司 | Pinch roller device |
| CN105935846A (en) * | 2015-12-08 | 2016-09-14 | 天津枫林云科技有限公司 | Damping pinch roller device |
| CN105935848A (en) * | 2015-12-08 | 2016-09-14 | 天津新瑞微联科技有限公司 | Conveying pinch roller fixing device |
| CN106181020A (en) * | 2016-08-28 | 2016-12-07 | 兰州理工大学 | Trailing type improves the method for Al/Cu stir friction welding seam tissue |
| CN108393637A (en) * | 2018-05-11 | 2018-08-14 | 上海航天设备制造总厂有限公司 | Trailing type pressing device and compressing method for the welding of thin plate agitating friction |
| CN109175671A (en) * | 2018-10-11 | 2019-01-11 | 南京中车浦镇城轨车辆有限责任公司 | A kind of agitating friction weldering defect repair and remove deburring integral method |
| CN110394541A (en) * | 2019-07-26 | 2019-11-01 | 湖南大用智能科技有限公司 | Robot welding system and traffic sign welding system |
-
2009
- 2009-07-21 CN CN200910115722A patent/CN101618479A/en not_active Application Discontinuation
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528218A (en) * | 2011-12-15 | 2012-07-04 | 宁夏共享集团有限责任公司 | Method for preventing deformation of large-size thin-wall annular casting during welding process |
| CN102528218B (en) * | 2011-12-15 | 2013-11-13 | 宁夏共享集团有限责任公司 | Method for preventing deformation of large-size thin-wall annular casting during welding process |
| CN102689123A (en) * | 2012-06-14 | 2012-09-26 | 哈尔滨工业大学 | Rolling head and method for realizing re-nanocrystallization welding by adopting same |
| CN102689123B (en) * | 2012-06-14 | 2015-01-14 | 哈尔滨工业大学 | Method for realizing re-nanocrystallization welding |
| CN104874934A (en) * | 2015-05-28 | 2015-09-02 | 江西洪都航空工业集团有限责任公司 | Method for controlling welding joint quality of medium-carbon quenched and tempered steel during welding |
| CN105935849A (en) * | 2015-12-08 | 2016-09-14 | 天津新瑞微联科技有限公司 | Pinch roller device |
| CN105935846A (en) * | 2015-12-08 | 2016-09-14 | 天津枫林云科技有限公司 | Damping pinch roller device |
| CN105935848A (en) * | 2015-12-08 | 2016-09-14 | 天津新瑞微联科技有限公司 | Conveying pinch roller fixing device |
| CN106181020A (en) * | 2016-08-28 | 2016-12-07 | 兰州理工大学 | Trailing type improves the method for Al/Cu stir friction welding seam tissue |
| CN108393637A (en) * | 2018-05-11 | 2018-08-14 | 上海航天设备制造总厂有限公司 | Trailing type pressing device and compressing method for the welding of thin plate agitating friction |
| CN109175671A (en) * | 2018-10-11 | 2019-01-11 | 南京中车浦镇城轨车辆有限责任公司 | A kind of agitating friction weldering defect repair and remove deburring integral method |
| CN110394541A (en) * | 2019-07-26 | 2019-11-01 | 湖南大用智能科技有限公司 | Robot welding system and traffic sign welding system |
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Open date: 20100106 |