CN104588868A - Double-shaft-shoulder stirring head for metal composite plate welding - Google Patents
Double-shaft-shoulder stirring head for metal composite plate welding Download PDFInfo
- Publication number
- CN104588868A CN104588868A CN201510076220.7A CN201510076220A CN104588868A CN 104588868 A CN104588868 A CN 104588868A CN 201510076220 A CN201510076220 A CN 201510076220A CN 104588868 A CN104588868 A CN 104588868A
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- CN
- China
- Prior art keywords
- shaft shoulder
- annular protrusion
- stirring
- mixing needle
- double
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
- B23K20/1255—Tools therefor, e.g. characterised by the shape of the probe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
Abstract
The invention discloses a double-shaft-shoulder stirring head for metal composite plate welding. The double-shaft-shoulder stirring head comprises a clamping end, an upper shaft shoulder, a lower shaft shoulder, a stirring needle and a circumferential annular bulge on the stirring needle, wherein one end of the upper shaft shoulder is connected with the clamping end, and the other end of the upper shaft shoulder is connected with the stirring needle; the lower shaft shoulder is connected with the stirring needle; a junction between the annular bulge and the stirring needle is in arc transition; in a welding process, the maximum diameter position of the annular bulge is arranged at a combination interface of a metal composite plate; at the moment, stirring friction welding is carried out, so that the heat input amount and metal flowing on the combination interface can be well controlled; therefore, backflow is realized when upper and lower special metals of a multilayer composite plate flow to the combination interface, and the flowing turbulence degree between plastic flowing metals is controlled, therefore, a good welded combination interface is formed, and production of compounds among the special metals on the combination interface is controlled; the problem in control of a compound transition layer among the metals on the combination interface during composite plate is solved. The double-shaft-shoulder stirring head is simple in structure, high in processing technique, low in production cost and high in welding efficiency.
Description
Technical field
The invention belongs to soldering appliance field, be specifically related to a kind of double-shaft shoulder stirring-head for composite metal plate welding.
Background technology
Dissimilar metal clad plate is as a kind of material in physical property, mechanical property and switching performance etc. with larger flexibility, and its application is very broad, but when applying dissimilar metal clad plate and being shaping, its welding method can be subject to great limitation.When adopting general melting method welding composite plate, the inequality of heat input can cause certain distortion, composite plate faying face can be made simultaneously to form larger intermetallic compound transition layer, thus affect the serviceability of dissimilar metal clad plate.
Friction stir welding method is a kind of solid-state plasticized joining technology, and since appearance, agitating friction is welded in low-melting-point metal, and especially the welding field of aluminium alloy obtains and applies widely.Compared with other welding methods, agitating friction solder technology has features: do not produce molten solder defect, welding deformation little, simple to operate, be applicable to multiple material and joint form.Friction stir welding has the unrivaled advantage of many melt welding methods, particularly its weld metal in welding process is non-fusible can form weld seam, its specific plasticizing metal temperature is less than the fusing point of common metal, even be less than general intermetallic compound formation temperature, can be good at the formation controlling weld heat-affected zone and intermetallic compound.Now, friction stir welding processing dissimilar metal clad plate is seldom adopted.
Chinese patent (103600167A) discloses the welding method of a kind of carbon steel and stainless steel clad plate.This welding method is and utilizes friction stir welding to weld composite plate, but in order to control transition zone, before weldering, need butt joint to process, need the groove end face of two composite plate butt joint edges processing isosceles triangle, fill silk in groove after alignment, then carry out friction stir welding.The object of this invention is the mixed problem controlling composite plate transition region, but in actual welding process, due to the effect of the power of mixing needle, is difficult to ensure that the pre-fill welding wire in groove relative movement does not occur, so its controllability is poor.
Summary of the invention
The object of the present invention is to provide a kind of double-shaft shoulder stirring-head for composite metal plate welding, by controlling the plasticized metal flow behavior of composite plate substrate and compound plate, realize the Laminar Flow state of faying face, reduce between the different metal atom in welding point between composite plate substrate and compound plate and mutually diffuse to form brittlement phase, realize the direct agitating friction of composite plate and be welded into type, effectively solve the composite plate face foreign material that combines between the higher and lower levels to mix embrittlement in a large number and the difficult problem such as even to ftracture, solve the mixed problem of composite plate welding transition district metal, composite plate welding point is made to meet Long-Time Service requirement.
The technical solution realizing the object of the invention is: a kind of double-shaft shoulder stirring-head for composite metal plate welding, comprises
Be arranged to the bare terminal end being fixed on friction stir welding machine main shaft;
With the upper shaft shoulder be connected bottom bare terminal end;
With the mixing needle be connected bottom the upper shaft shoulder;
With the lower shaft shoulder be connected bottom mixing needle;
Wherein, described mixing needle is provided with at least one annular protrusion.
Above-mentioned mixing needle is provided with at least two annular protrusions, and described two annular protrusion intervals are arranged.
The junction of above-mentioned annular protrusion and mixing needle is arc transition.
Mixing needle between the above-mentioned upper shaft shoulder and the annular protrusion nearest apart from the upper shaft shoulder, its shape is gradual shrinkage, flaring type or column type to the direction of annular protrusion from the upper shaft shoulder; Mixing needle between the above-mentioned lower shaft shoulder and the annular protrusion nearest apart from the lower shaft shoulder, its shape is gradual shrinkage, flaring type or column type to the direction of annular protrusion from the lower shaft shoulder.
Mixing needle between the above-mentioned upper shaft shoulder and the annular protrusion nearest apart from the upper shaft shoulder, its shape is gradual shrinkage, flaring type or column type to the direction of annular protrusion from the upper shaft shoulder; Mixing needle between the above-mentioned lower shaft shoulder and the annular protrusion nearest apart from the lower shaft shoulder, its shape is gradual shrinkage, flaring type or column type to the direction of annular protrusion from the lower shaft shoulder.
Compared with prior art, its remarkable advantage: the annular protrusion on (1) mixing needle can control composite plate faying face place dissimilar metal preferably and only friction and Extrusion occur, reduces the formation of intermetallic compound in the present invention; (2) rigid support of self can be met; (3) structure is simple, practical, has important practical significance to the propagation and employment of the friction stir welding realizing double-level-metal composite plate.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the double-shaft shoulder stirring-head for composite metal plate welding of the present invention.
Fig. 2 is the Fundamentals of Welding schematic diagram of prior art stirring-head.
Fig. 3 is the Fundamentals of Welding schematic diagram of the double-shaft shoulder stirring-head for composite metal plate welding of the present invention.
Fig. 4 is the mixing needle schematic diagram of the embodiment of the present invention one.
Fig. 5 is the mixing needle schematic diagram of the embodiment of the present invention two.
Fig. 6 is the mixing needle schematic diagram of the embodiment of the present invention three.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Composition graphs 2, in existing friction stir welding welding process, the Plastic Flow of its metal meets certain suction---and extruding is theoretical, namely under friction stir welding condition, its one end is the shaft shoulder of stirring-head, the other end is the base plate of rigidity, distance in welding process between mixing needle end and base plate remains unchanged, and when stirring-head rotation causes plasticized metal along mixing needle surface axial flow, must there is an arrival end and a port of export.At arrival end, likely form a temporary cavity, around plasticized metal will be attracted to this cavity, form so-called swabbing effect; At the port of export, change flows to and extrudes circumferential metal by plasticized metal, forms so-called extrusion effect; Just because of cavity to plasticized metal towards Weld pipe mill swabbing action and squeezing action, make high temperature plasticized metal axially form violent travel motion at mixing needle.
Composition graphs 3, the mixing needle 3 of a kind of double-shaft shoulder stirring-head for composite metal plate welding of the present invention is provided with annular protrusion 4, in friction stir welding welding process, the faying face of composite plate is positioned at annular protrusion 4 largest diameter place, this is equivalent to add partition between the upper shaft shoulder 2 and the lower shaft shoulder 5 of stirring-head, a Region dividing between the upper shaft shoulder 2 of stirring-head and the lower shaft shoulder 5 is made to be two regions, for Plastic Flow metal provides two arrival ends and the port of export, be plastic metal and provide two flowing spaces, make it in welding process, form two temporary cavities, the plasticized metal of substrate and compound plate is made to form respective suction---extrude cavity, and at the faying face place of substrate and compound plate, two convolution cavity phase extrusion moldings complete connection.Its feature is that the existence of the annular protrusion 4 of mixing needle 3 makes to form two non-interfering plastic metal flowing transport regions in welding process, and mutually extruded connection at faying face place, thus control the formation of double-level-metal composite plate faying face place intermetallic compound, improve the serviceability of joint.Meanwhile, for multilayer composite sheet, the annular protrusion number N (N >=1) on its stirring-head used conforms to composite plate combination interface number.
Embodiment one
Composition graphs 1 and Fig. 4, a kind of double-shaft shoulder stirring-head for composite metal plate welding, comprise bare terminal end 1, the upper shaft shoulder 2, mixing needle 3 and the lower shaft shoulder 5, the upper shaft shoulder 2 one end is connected with bare terminal end 1, the other end is connected with mixing needle 3, the other end of mixing needle 3 is connected with the lower shaft shoulder 5, is circumferentially with 1 annular protrusion 4 along mixing needle 3.Mixing needle 3 between the upper shaft shoulder 2 and annular protrusion 4, its shape is gradual shrinkage from the upper shaft shoulder 2 to the direction of annular protrusion 4; Mixing needle 3 between the above-mentioned lower shaft shoulder 5 and annular protrusion 4, its shape is column type from the lower shaft shoulder 5 to the direction of annular protrusion 4.Bare terminal end 1, the upper shaft shoulder 2, mixing needle 3 and the lower shaft shoulder 5 are integrated manufacture.Bare terminal end (1) other end is fixed on friction stir welding machine main shaft.
Above-mentioned annular protrusion 4 is arc transition with the junction of mixing needle 3.
The course of work: for double-level-metal composite plate:
First removing surface is carried out to double-level-metal composite plate, then friction stir welding machine is moved, the also clamping that stirring-head and welded sheet material weld seam carried out aliging is fixed, the upper shaft shoulder 2 is positioned at above compound plate, the lower shaft shoulder 5 is positioned at below substrate, sets suitable welding parameter, and the largest diameter place of the annular protrusion 4 of mixing needle 3 is positioned at the combination interface place of double-level-metal composite plate, weld again, until welded.
Mixing needle 3 shape between the above-mentioned lower shaft shoulder 5 and annular protrusion 4 can also be gradual shrinkage or flaring type.Its operation principle is the same.
Embodiment two
Composition graphs 5, a kind of double-shaft shoulder stirring-head for composite metal plate welding, comprise bare terminal end 1, the upper shaft shoulder 2, mixing needle 3 and the lower shaft shoulder 5, the upper shaft shoulder 2 one end is connected with bare terminal end 1, the other end is connected with mixing needle 3, the other end of mixing needle 3 is connected with the lower shaft shoulder 5, is circumferentially with 1 annular protrusion 4 along mixing needle 3.Mixing needle 3 between the upper shaft shoulder 2 and annular protrusion 4, its shape is flaring type from the upper shaft shoulder 2 to the direction of annular protrusion 4; Mixing needle 3 between the above-mentioned lower shaft shoulder 5 and annular protrusion 4, its shape is flaring type from the lower shaft shoulder 5 to the direction of annular protrusion 4.Bare terminal end 1, the upper shaft shoulder 2, mixing needle 3 and the lower shaft shoulder 5 are integrated manufacture.Bare terminal end (1) other end is fixed on friction stir welding machine main shaft.
Above-mentioned annular protrusion 4 is arc transition with the junction of mixing needle 3.
The course of work: for double-level-metal composite plate:
First removing surface is carried out to double-level-metal composite plate, then friction stir welding machine is moved, the also clamping that stirring-head and welded sheet material weld seam carried out aliging is fixed, the upper shaft shoulder 2 is positioned at above compound plate, the lower shaft shoulder 5 is positioned at below substrate, sets suitable welding parameter, and the largest diameter place of the annular protrusion 4 of mixing needle 3 is positioned at the combination interface place of double-level-metal composite plate, weld again, until welded.
Mixing needle 3 shape between the above-mentioned lower shaft shoulder 5 and annular protrusion 4 can also be column type or gradual shrinkage.Its operation principle is the same.
Mixing needle 3 shape between the above-mentioned upper shaft shoulder 2 and annular protrusion 4 can also be column type, and its operation principle is the same.
Embodiment three
Composition graphs 6, a kind of double-shaft shoulder stirring-head for composite metal plate welding, comprise bare terminal end 1, the upper shaft shoulder 2, mixing needle 3 and the lower shaft shoulder 5, the upper shaft shoulder 2 one end is welded with bare terminal end 1, the other end welds with mixing needle 3, the other end of mixing needle 3 welds with the lower shaft shoulder 5, is circumferentially with 2 annular protrusions 4 along mixing needle 3.Mixing needle 3 between the upper shaft shoulder 2 and the annular protrusion 4 nearest apart from the upper shaft shoulder 2, its shape is column type from the upper shaft shoulder 2 to the direction of annular protrusion 4; Mixing needle 3 between the above-mentioned lower shaft shoulder 5 and the annular protrusion 4 nearest apart from the lower shaft shoulder 5, its shape is flaring type from the lower shaft shoulder 5 to the direction of annular protrusion 4.Bare terminal end (1) other end is fixed on friction stir welding machine main shaft.
Above-mentioned annular protrusion 4 is arc transition with the junction of mixing needle 3.
The course of work: for three-layer metal composite plate:
First removing surface is carried out to three-layer metal composite plate, then friction stir welding machine is moved, the also clamping that stirring-head and welded sheet material weld seam carried out aliging is fixed, the upper shaft shoulder 2 is positioned at above compound plate, the lower shaft shoulder 5 is positioned at below substrate, sets suitable welding parameter, and the largest diameter place of two annular protrusions 4 of mixing needle 3 is positioned at the two basic change interface of three-layer metal composite plate, weld again, until welded.
Mixing needle 3 shape between the above-mentioned lower shaft shoulder 5 and the annular protrusion 4 nearest apart from the lower shaft shoulder 5 can also be column type or gradual shrinkage.Its operation principle is the same.
Mixing needle 3 shape between the above-mentioned upper shaft shoulder 2 and annular protrusion 4 can also be gradual shrinkage or flaring type, and its operation principle is the same.
Claims (5)
1., for a double-shaft shoulder stirring-head for composite metal plate welding, it is characterized in that: comprise
Be arranged to the bare terminal end (1) being fixed on friction stir welding machine main shaft;
The upper shaft shoulder (2) be connected with bare terminal end (1) bottom;
The mixing needle (3) be connected with the upper shaft shoulder (2) bottom;
The lower shaft shoulder (5) be connected with mixing needle (3) bottom;
Wherein, described mixing needle (3) is provided with at least one annular protrusion (4).
2. the double-shaft shoulder stirring-head for composite metal plate welding according to claim 1, is characterized in that: above-mentioned mixing needle (3) is provided with at least two annular protrusions (4), and described two annular protrusion (4) intervals are arranged.
3. the double-shaft shoulder stirring-head for composite metal plate welding according to claim 1 and 2, is characterized in that: above-mentioned annular protrusion (4) is arc transition with the junction of mixing needle (3).
4. the double-shaft shoulder stirring-head for composite metal plate welding according to claim 3, it is characterized in that: the mixing needle (3) between the above-mentioned upper shaft shoulder (2) and the annular protrusion (4) nearest apart from the upper shaft shoulder (2), its shape is gradual shrinkage, flaring type or column type from the upper shaft shoulder (2) to the direction of annular protrusion (4); Mixing needle (3) between the above-mentioned lower shaft shoulder (5) and the annular protrusion (4) nearest apart from the lower shaft shoulder (5), its shape is gradual shrinkage, flaring type or column type from the lower shaft shoulder (5) to the direction of annular protrusion (4).
5. the double-shaft shoulder stirring-head for composite metal plate welding according to claim 1 and 2, it is characterized in that: the mixing needle (3) between the above-mentioned upper shaft shoulder (2) and the annular protrusion (4) nearest apart from the upper shaft shoulder (2), its shape is gradual shrinkage, flaring type or column type from the upper shaft shoulder (2) to the direction of annular protrusion (4); Mixing needle (3) between the above-mentioned lower shaft shoulder (5) and the annular protrusion (4) nearest apart from the lower shaft shoulder (5), its shape is gradual shrinkage, flaring type or column type from the lower shaft shoulder (5) to the direction of annular protrusion (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076220.7A CN104588868A (en) | 2015-02-12 | 2015-02-12 | Double-shaft-shoulder stirring head for metal composite plate welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076220.7A CN104588868A (en) | 2015-02-12 | 2015-02-12 | Double-shaft-shoulder stirring head for metal composite plate welding |
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| CN104588868A true CN104588868A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510076220.7A Pending CN104588868A (en) | 2015-02-12 | 2015-02-12 | Double-shaft-shoulder stirring head for metal composite plate welding |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138851A (en) * | 2017-07-04 | 2017-09-08 | 江西理工大学 | It is a kind of to carry out the stirring-head of multiple weld seam agitating friction welding simultaneously |
| CN114654072A (en) * | 2022-03-24 | 2022-06-24 | 航天工程装备（苏州）有限公司 | Stirring device and system for improving strength of friction stir welding lap joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6206268B1 (en) * | 2000-07-13 | 2001-03-27 | Murray W. Mahoney | Friction stir welding pin with internal flow channels |
| CN1590003A (en) * | 2003-08-29 | 2005-03-09 | 波音公司 | Apparatus and method for friction stir welding utilizing a grooved pin |
| CN103111750A (en) * | 2013-03-01 | 2013-05-22 | 重庆市科学技术研究院 | Welding joint and method for improving friction stir welding strength |
| CN204449622U (en) * | 2015-02-12 | 2015-07-08 | 江苏烁石焊接科技有限公司 | For the double-shaft shoulder stirring-head of composite metal plate welding |
-
2015
- 2015-02-12 CN CN201510076220.7A patent/CN104588868A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6206268B1 (en) * | 2000-07-13 | 2001-03-27 | Murray W. Mahoney | Friction stir welding pin with internal flow channels |
| CN1590003A (en) * | 2003-08-29 | 2005-03-09 | 波音公司 | Apparatus and method for friction stir welding utilizing a grooved pin |
| CN103111750A (en) * | 2013-03-01 | 2013-05-22 | 重庆市科学技术研究院 | Welding joint and method for improving friction stir welding strength |
| CN204449622U (en) * | 2015-02-12 | 2015-07-08 | 江苏烁石焊接科技有限公司 | For the double-shaft shoulder stirring-head of composite metal plate welding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138851A (en) * | 2017-07-04 | 2017-09-08 | 江西理工大学 | It is a kind of to carry out the stirring-head of multiple weld seam agitating friction welding simultaneously |
| CN114654072A (en) * | 2022-03-24 | 2022-06-24 | 航天工程装备（苏州）有限公司 | Stirring device and system for improving strength of friction stir welding lap joint |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150506 |