CN101244484A - Friction stitch welding experimental device - Google Patents
Friction stitch welding experimental device Download PDFInfo
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- CN101244484A CN101244484A CNA2007100793253A CN200710079325A CN101244484A CN 101244484 A CN101244484 A CN 101244484A CN A2007100793253 A CNA2007100793253 A CN A2007100793253A CN 200710079325 A CN200710079325 A CN 200710079325A CN 101244484 A CN101244484 A CN 101244484A
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Abstract
The invention discloses a friction stitch welding method and the experimental device. The friction stitch welding method is as follow: a stopper (2), which rotates at high speed and applies pressure in axial direction, is inserted into a pre-boring welding hole (11) of a body (1) to be welded; the contact interface of the welding hole (11) and the stopper (2) is hot-melted, and a welding unit is formed after the crystallization and metallurgy reaction of the interface; a series of welding units (3) are overlapped to form a complete weld joint. The friction stitch welding experimental device comprises a base (5), a shift slipway (6) arranged on the base, a workpiece fixture (7), a beam (8), and a friction main shaft head (9), and is controlled by a console (10). The experimental device can not only be used in plate welding and pipeline welding, but also used in underwater welding experiments after assembled with a matching flume (71). The friction stitch welding method and the experimental device have the advantages of simple method, easy operation, high reliability, excellent quality; simple equipment, low cost, simple use, maintenance and repair.
Description
Technical field
The present invention relates to a kind of welding method and its experimental provision, the experimental provision that especially can realize the solid welding method that connects and adopt this method to carry out dull and stereotyped welding, pipeline welding and weld under water.
Background technology
The welding method kind of current application is very various, to adapt to various connection states and to the welding of different materials.Friction welding is under pressure, friction by interface to be welded raises interface and near temperature thereof, the distortion of materials drag reduces, plasticity improves, the oxide-film fragmentation at interface, be accompanied by the material production plastic deformation and flow, by the diffusion on the interface and again the crystallization metallurgical reaction realize the solid welding method that connects.Connection, production efficiency height, dimensional accuracy height, equipment that friction welding possesses joint quality height, suitable foreign material are easy to outstanding advantages such as automatic and mechanical, clean environment.Especially, for some occasion of arc welding application difficult, for example underwater steel construction reparation, the friction welding that belongs to Solid-phase welding possesses unique environmental adaptation advantage.
Alternative method of attachment under water is divided into 3 classes, i.e. mechanical connector, arc welding and Solid-phase welding.Mechanical connector is simple in structure, relatively cheap, install rapidly and quality of connection has nothing to do with the depth of water, but the existence still of its this tender subject of long-term reliability makes its application be restricted.Arc welding is divided into WET WELDING, local dry-type welding, dry-type high-voltage welding and the welding of dry type normal pressure.WET WELDING, local dry-type quality of weld joint are lower, are generally used for shallow water, non-important structure reparation.The dry-type high-voltage welding can obtain high-quality weld seam, and the underwater dry-type maintenance system of extensive use at present adopts the welding of rail mounted tungsten argon arc, but because arc stability reduces, is generally used for the 300m depth of water with shallow.The variation mode PLASMA ARC WELDING of tungsten argon arc welding and gas metal-arc welding connect can realize that the 1000m depth of water is with the welding under the dark pressure; but; implementation cost is high, it is full-automatic to be difficult to realize, and is difficult to be applied to the maintenance of other steel constructions such as ocean platform outside the submarine pipeline.The dry type normal pressure welding then cost than the dry-type high-voltage welding is higher, is difficult to apply.Belong to the explosive welding of Solid-phase welding, because, fail to apply for the worry of implementing security.Belong to the friction welding of Solid-phase welding equally, then obtained more widely using among ocean engineering, for example, the friction stub soldering equipment is under water under the support of remote-controlled robot, finished the depth of water near 400 meters sea risers anode annex welding.But this friction welding can only be finished the simple task that similar double-screw bolt connects, and can not finish complex tasks such as submarine pipeline breakage, ocean platform Crack repair.
In order to reduce the underwater maintenance operating cost, to improve repairing quality, particularly adapt to the needs that marine petroleum development has entered super deepwater field, the present invention proposes this novel welding method of friction stitch welding, and the friction stitch welding experimental provision that is used for this welding method research.
Summary of the invention
According to background technology, the object of the present invention is to provide a kind of prebored hole on body to be welded, insert stopper, stopper is rotated at a high speed, and impose axial compressive force simultaneously, melted by heating stopper and welding hole make its surface crystallization metallurgical reaction form welding unit, and a series of welding units are overlapped to form the friction stitch welding of complete weld seam mutually; Another purpose of the present invention is to provide a kind of experimental provision of this method of realization of being made up of base, Mobile Slide, work piece holder, crossbeam and console.
To achieve these goals, the present invention is achieved through the following technical solutions:
A kind of friction stitch welding, this method comprises the following steps: to go up brill welding hole (11) at body to be welded (1), the stopper (2) that uses diameter to be slightly less than welding hole (11) rotates in welding hole (11) high speed, and the P that axially exerts pressure, make the contact-making surface melted by heating of stopper (2) and welding hole (11), and carry out a crystallization metallurgical reaction formation welding unit (3), finish the mutual overlap joint of a series of welding units (3), and constitute complete stitch welding weld seam (4).
Be used to realize the experimental provision of this method, mainly by base (5), Mobile Slide (6), work piece holder (7), crossbeam (8), friction main tapping (9) and console (10) are formed, wherein: on base (5), be bolted with crossbeam (8), also be provided with friction main tapping (9) on it, Mobile Slide (6) is installed on base (5), work piece holder (7) is fixing with connecting plate (61), drive work piece holder (7) along sliding on the slideway (62) by the driving oil cylinder (63) that is fixed on slideway (62), automatically control the rotating speed of friction main tapping (9) by computer software by console (10), decrease speed, axial compressive force P, welding parameters such as position coordinates.
Owing to adopted technique scheme, the present invention to have following advantage and effect:
1, welding quality of the present invention is good, the welding efficiency height, and can be widely used in ocean platform, submarine pipeline, hull repairings etc. are under water numerous, especially the reparation of deep water steel construction, its welding parameter is not subjected to water depth effect, the shallow water parameter can directly apply to deep water, and operation is directly implemented in water, does not need to build special spaces such as hyperbaric environment, can be supporting with the underwater remote-control robot, realize a complete set of operation automation, can break through human saturation diving degree of depth restriction, interconnection technique is applied to deep water thereby might really impel under water.
2, the used friction main tapping of experimental provision of the present invention adopts the high pressure liquid cylinder pressure, the high-volume hydraulic motor drives, the Seal Design of friction main tapping, it can be used under water,, both can be used for dull and stereotyped welding by changing anchor clamps, also can be used for pipeline welding, adopt supporting tank, can make stopper not in water, can carry out friction stitch welding experiment under water.The present invention is simple in structure, reliable operation, and working service is repaired simple and easy.
Description of drawings
Figure 1A is a friction stitch welding principle cutaway view of the present invention
Figure 1B is the A-A cross-sectional schematic of Figure 1A of the present invention
Fig. 2 A is a friction stitch welding experimental provision structure collectivity schematic perspective view of the present invention
Fig. 2 B is Fig. 2 A Mobile Slide structural representation of the present invention
The supporting sink structure schematic diagram that Fig. 3 adopts for the present invention's experiment welding under water
The handwheel structural representation that Fig. 4 adopts for experimental channel welding of the present invention
The specific embodiment
Illustrate by Figure 1A, Figure 1B, Fig. 2 A and Fig. 2 B, a kind of friction stitch welding, this method comprises the following steps: to bore welding hole 11 on body 1 to be welded, the stopper 2 that uses diameter to be slightly less than welding hole 11 rotates in welding hole 11 high speeds, and the P that axially exerts pressure, make the contact-making surface melted by heating of stopper 2 and welding hole 11, and carry out welding unit 3 of crystallization metallurgical reaction formation, finish the mutual overlap joint of a series of welding units 3, and constitute complete stitch welding weld seam 4.
Be used to realize the experimental provision of friction stitch welding, mainly by base 5, Mobile Slide 6, work piece holder 7, crossbeam 8, friction main tapping 9 and console 10 are formed, it is characterized in that: on base 5, be bolted with crossbeam 8, also be provided with friction main tapping 9 on it, Mobile Slide 6 is installed on base 5, work piece holder 7 is fixing with connecting plate 61, drive work piece holder 7 along sliding on the slideway 62 by the driving oil cylinder 63 that is fixed on slideway 62, automatically control the rotating speed of friction main tapping 9 by computer software by console 10, decrease speed, axial compressive force P, welding parameters such as position coordinates.
Other knows, on friction main tapping 9, drill bit is installed, preboring welding hole 11 on body 1 to be welded, take off drill bit then, change the outfit and go up stopper 2, make diameter be slightly less than the stopper 2 of welding hole 11, rotation is inserted welding hole 11 and is descended at a high speed, the temperature rising of the contact interface of stopper 2 and body 1 to be welded because of frictional heat, stopper 2 produces plastic deformation until liquefaction, the metal material of plastification is constantly filled the continuous release of welding hole 11 and surface impurity, and contact interface moves from welding hole 11 bottoms rapidly, simultaneously reaches close between plastification metal material and welding hole 11 inner surfaces and combines, finish a welding unit 3, move the generative process that suitable distance begins next welding unit 3 by Mobile Slide 6, a series of welding units 3 mutual overlap joints as shown in the figure form complete stitch welding weld seam 4 at last.
Illustrate by Fig. 2 A, Fig. 2 B, carry out the experiment of dull and stereotyped welding, can adopt the Mobile Slide 6 of experimental provision to realize the overlap joint of welding unit 3 on the body 1 to be welded.
Illustrated by Fig. 3, change anchor clamps and adopt special supporting tank 71 to place on the experimental provision fixture 7, water filling makes water level suitably be higher than the workpiece end face in the tank 71, and stopper 2 is not in water.
Illustrate by Fig. 4, during the experimental channel welding,, realize 360 ° of rotations of pipeline, rotate to an angle after each welding unit 3 is finished, carry out element solder next time, finally form the weld seam of pipeline welding by handwheel 74 by scroll chuck anchor clamps 72 clamping pipes 73.
Claims (5)
1. friction stitch welding, this method comprises the following steps: to go up brill welding hole (11) at body to be welded (1), the stopper (2) that uses diameter to be slightly less than welding hole (11) rotates in welding hole (11) high speed, and the P that axially exerts pressure, make the contact-making surface melted by heating of stopper (2) and welding hole (11), and carry out a crystallization metallurgical reaction formation welding unit (3), finish the mutual overlap joint of a series of welding units (3), and constitute complete stitch welding weld seam (4).
2. experimental provision that is used to realize the method for claim 1, mainly by base (5), Mobile Slide (6), work piece holder (7), crossbeam (8), friction main tapping (9) and console (10) are formed, it is characterized in that: on base (5), be bolted with crossbeam (8), also be provided with friction main tapping (9) on it, Mobile Slide (6) is installed on base (5), work piece holder (7) is fixing with connecting plate (61), drive work piece holder (7) along sliding on the slideway (62) by the driving oil cylinder (63) that is fixed on slideway (62), automatically control the rotating speed of friction main tapping (9) by computer software by console (10), decrease speed, axial compressive force P, welding parameters such as position coordinates.
3. friction stitch welding experimental provision according to claim 2 is characterized in that: adopt Mobile Slide (6) to realize the upward overlap joint of welding unit (3) of body to be welded (1) during the welding of experiment flat board.
4. friction stitch welding experimental provision according to claim 2 is characterized in that: adopt special supporting tank (71) to place on the work piece holder (7) under water when experiment is welded, make stopper (2) not in water.
5. friction stitch welding experimental provision according to claim 2, it is characterized in that: make pipeline (73) rotation by scroll chuck anchor clamps (72) clamping pipes (73) by handwheel (74) during experimental channel (73) welding, realize the upward overlap joint of welding unit (3) of body to be welded (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100793253A CN101244484A (en) | 2007-02-16 | 2007-02-16 | Friction stitch welding experimental device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100793253A CN101244484A (en) | 2007-02-16 | 2007-02-16 | Friction stitch welding experimental device |
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| CN101244484A true CN101244484A (en) | 2008-08-20 |
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| CNA2007100793253A Pending CN101244484A (en) | 2007-02-16 | 2007-02-16 | Friction stitch welding experimental device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069291A (en) * | 2010-12-31 | 2011-05-25 | 今皓光电（昆山）有限公司 | Welding device for hot-pressure welding double layers and double sides |
| CN102589782A (en) * | 2012-02-24 | 2012-07-18 | 南京航空航天大学 | Welding pressure measurement system for friction stitch welding |
| CN103203537A (en) * | 2013-04-03 | 2013-07-17 | 南京航空航天大学 | Welding device for friction stitch welding |
| CN104259653A (en) * | 2014-09-22 | 2015-01-07 | 天津大学 | Full-hydraulic pressure drive closing type dual-main shaft numerical control underwater friction welding device |
| CN104439685A (en) * | 2014-10-27 | 2015-03-25 | 中国海洋石油总公司 | Continuous machining method for friction plunger in underwater welding process |
| CN104722912A (en) * | 2015-02-28 | 2015-06-24 | 江苏科技大学 | Track-following-type friction-stir-welding device for pipeline and welding method |
| CN105397276A (en) * | 2015-12-15 | 2016-03-16 | 哈尔滨工业大学 | Friction stir welding additive manufacture method of bar material |
| CN106624647A (en) * | 2016-12-26 | 2017-05-10 | 南京航空航天大学 | Novel device and method for titanium alloy plate lap connection |
| CN108044295A (en) * | 2018-01-30 | 2018-05-18 | 无锡爱奇特汽车环保科技有限公司 | Exhaust manifold welder |
| US10041163B1 (en) | 2017-02-03 | 2018-08-07 | Ge-Hitachi Nuclear Energy Americas Llc | Plasma spray coating for sealing a defect area in a workpiece |
| CN113146036A (en) * | 2021-04-06 | 2021-07-23 | 梁银清 | Full-automatic welding device for pipe fittings |
-
2007
- 2007-02-16 CN CNA2007100793253A patent/CN101244484A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069291A (en) * | 2010-12-31 | 2011-05-25 | 今皓光电（昆山）有限公司 | Welding device for hot-pressure welding double layers and double sides |
| CN102589782A (en) * | 2012-02-24 | 2012-07-18 | 南京航空航天大学 | Welding pressure measurement system for friction stitch welding |
| CN103203537B (en) * | 2013-04-03 | 2015-07-29 | 南京航空航天大学 | A kind of welding equipment of friction stitch welding |
| CN103203537A (en) * | 2013-04-03 | 2013-07-17 | 南京航空航天大学 | Welding device for friction stitch welding |
| CN104259653A (en) * | 2014-09-22 | 2015-01-07 | 天津大学 | Full-hydraulic pressure drive closing type dual-main shaft numerical control underwater friction welding device |
| CN104259653B (en) * | 2014-09-22 | 2016-08-24 | 天津大学 | Full hydraulic drive closed-type double action crank press main spindle numerical control rubs under water and connects soldering equipment |
| CN104439685A (en) * | 2014-10-27 | 2015-03-25 | 中国海洋石油总公司 | Continuous machining method for friction plunger in underwater welding process |
| CN104722912A (en) * | 2015-02-28 | 2015-06-24 | 江苏科技大学 | Track-following-type friction-stir-welding device for pipeline and welding method |
| CN105397276A (en) * | 2015-12-15 | 2016-03-16 | 哈尔滨工业大学 | Friction stir welding additive manufacture method of bar material |
| CN106624647A (en) * | 2016-12-26 | 2017-05-10 | 南京航空航天大学 | Novel device and method for titanium alloy plate lap connection |
| CN106624647B (en) * | 2016-12-26 | 2019-02-19 | 南京航空航天大学 | Titanium alloy plate lap device and method |
| US10041163B1 (en) | 2017-02-03 | 2018-08-07 | Ge-Hitachi Nuclear Energy Americas Llc | Plasma spray coating for sealing a defect area in a workpiece |
| CN108044295A (en) * | 2018-01-30 | 2018-05-18 | 无锡爱奇特汽车环保科技有限公司 | Exhaust manifold welder |
| CN113146036A (en) * | 2021-04-06 | 2021-07-23 | 梁银清 | Full-automatic welding device for pipe fittings |
| CN113146036B (en) * | 2021-04-06 | 2023-01-03 | 山东大图数控设备有限公司 | Full-automatic welding device for pipe fittings |
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Open date: 20080820 |