CN101618479A - Control method of stir friction welding seam deformation - Google Patents

Control method of stir friction welding seam deformation Download PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
welding
rolling
control
deformation
support
Prior art date
Application number
CN200910115722A
Other languages
Chinese (zh)
Inventor
柯黎明
黄春平
邢丽
刘鸽平
黄永德
Original Assignee
南昌航空大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 南昌航空大学 filed Critical 南昌航空大学
Priority to CN200910115722A priority Critical patent/CN101618479A/en
Publication of CN101618479A publication Critical patent/CN101618479A/en

Links

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

A kind of control method of stir friction welding seam deformation
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.
CN200910115722A 2009-07-21 2009-07-21 Control method of stir friction welding seam deformation CN101618479A (en)

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

Family

ID=41511979

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910115722A CN101618479A (en) 2009-07-21 2009-07-21 Control method of stir friction welding seam deformation

Country Status (1)

Country Link
CN (1) CN101618479A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
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

Cited By (12)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
Padhy et al. Auxiliary energy assisted friction stir welding–status review
CN103862142B (en) Orthotropic plate U-shaped angle of rib weld seam robot prosposition single track balanced welding method
CN101491856B (en) Large forgings compression arc and induction composite heat-source repair-welding device and method
CN103567654B (en) For welding material and the welding method of titanium-steel composite board
CN100577340C (en) Composite welding method of ultrasound wave and non-melt pole electrical arc
CN205057322U (en) Circular tube welding device
CN105414746A (en) Simultaneous cooling assisted connection method based on laser additive manufacturing
CN101700602B (en) Portal frame movable type horizontal coordinate numerical control ultrasonic welding machine
CN201423506Y (en) Automatic straight seam welding device
CN103386576B (en) Aluminum alloy automobile dashboard bracket welder
CN201776580U (en) Welding gun device for welding machine
CN105834428B (en) A kind of laser three-D method for quickly forming and manufacturing that powder is carried based on the differential of the arc
CN107470628B (en) Ultrasonic micro-forging composite device for improving metal structure and performance of additive manufacturing and additive manufacturing method
CN1554510A (en) Laser-high frequency induction composite welder and its method
CN103567583B (en) The welding method of aluminium target material assembly
CN103264266B (en) Vehicle body end wall assembling and welding process
CN103586571A (en) Device and method for improving quality of aluminum alloy plasma arc welded joint
CN103692075B (en) Aluminium alloy part resistance spot welding process
CN103692166B (en) The preparation method of the thick alloy-steel plate of a kind of spy
CN105226479B (en) A kind of preparation method of tubular type conducting rod, hydraulic bulging device and tubular type conducting rod
CN102021565B (en) Method for repairing supercharger nozzle ring of internal-combustion engine
CN204842976U (en) 3D printing device
CN206305931U (en) A kind of small-sized efficient sander of composite steel tube
CN104227224A (en) Force platform for friction stirring welding machine
CN105479025A (en) Method for brazing diamond tool through lasers with assistance of ultrasonic waves

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20100106