CN105772933B - A kind of combined type stirring-head improving friction stir welding surface quality - Google Patents
A kind of combined type stirring-head improving friction stir welding surface quality Download PDFInfo
- Publication number
- CN105772933B CN105772933B CN201610193472.2A CN201610193472A CN105772933B CN 105772933 B CN105772933 B CN 105772933B CN 201610193472 A CN201610193472 A CN 201610193472A CN 105772933 B CN105772933 B CN 105772933B
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- China
- Prior art keywords
- mixing needle
- shaft shoulder
- root
- static shaft
- machined
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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
- 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
- B23K20/127—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 friction stir welding involving a mechanical connection
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a kind of combined type stirring-heads improving friction stir welding surface quality, including the static shaft shoulder and mixing needle；The mixing needle is made of mixing needle main body and mixing needle root；Described static shaft shoulder its underpart is machined with the lower face at 3 ° ~ 10 ° angles with its cross section；The lower face tilts side in stirring needle axis and is machined with arc holding tank；The arc holding tank is machined with major diameter rounded corner with workpiece contact position；The mixing needle main body is connected through a screw thread with mixing needle root and is placed in the static shaft shoulder；The mixing needle root is exposed to its lower face of the static shaft shoulder.The combined type stirring-head of the raising friction stir welding surface quality of the present invention, can effectively eliminate the defects of stir friction welding process center tap forms arc line, overlap, recess；The cut of roller compaction process generation can be effectively reduced, increases connector smooth degree, improves the mechanical property of connector, and improve stock utilization.
Description
Technical field
The present invention relates to a kind of agitating friction welding stirring-heads, more particularly to a kind of raising friction stir welding table
The combined type stirring-head of face quality, belongs to technical field of welding equipment.
Background technology
Agitating friction weldering is as a kind of solid diffusivity technique because the features such as its deformation is small, strength of joint is high, environmentally friendly is in space flight
It is constantly promoted and applied in the fields such as aviation, automobile, ship, traditional agitating friction welding is with stirring-head mainly by the shaft shoulder and stirring
Needle forms, and applies enough verticals to workpiece to ensure enough heat inputs by the shaft shoulder of rotation, this is not it is avoided that
Continuous arcing surface line, recess and overlap are generated on connector, this will influence the beauty and intensity of connector, must be by follow-up
Machining is eliminated, this will increase workload to influence production efficiency.Pass through dead axle shoulder agitating friction in the prior art
The technologies such as weldering, additional backing plate auxiliary agitating friction weldering improve joint surface defect.Although dead axle shoulder agitating friction welding technology is eliminated
Joint surface arc line, but connector can not be avoided to be recessed；Though additional backing plate auxiliary agitating friction weldering can eliminate surface defect, but still
Milling Machining and polishing need to be carried out to surface, spillage of material amount is big and undoubtedly increases workload.Wherein, China Patent Publication No.
A kind of Friction stir welding method of eliminating surface recesses with arc line features is disclosed in CN103447685A, in the process
Friction welding is stirred to the workpiece with boss using dead axle shoulder stirring-head, though it can avoid being formed joint surface arc line and recessed
It falls into, but the boss design needed for its workpiece undoubtedly increases the requirement of butt-welding fitting；Furthermore in dead axle shoulder welding process, by sending out
Only mixing needle root participates in severe friction when motivation drives mixing needle to rotate, thus mixing needle root belongs to easily loss position, often
Entire mixing needle is often needed replacing, this also results in significant wastage.
Invention content
A kind of raising friction stir welding table is provided it is an object of the invention to avoid the deficiencies in the prior art place
The combined type stirring-head of face quality can effectively eliminate stir friction welding process center tap formation arc line, overlap, recess etc. and lack
It falls into；The cut of roller compaction process generation can be effectively reduced, increases connector smooth degree, improves the mechanical property of connector, and improve
Stock utilization.
The purpose of the present invention is realized by following technological means:The raising friction stir welding surface quality of the present invention
Combined type stirring-head, including the static shaft shoulder and mixing needle；The mixing needle is made of mixing needle main body and mixing needle root；It is described
Static shaft shoulder its underpart is machined with the lower face at 3 ° ~ 10 ° angles with its cross section；The lower face is tilted in stirring needle axis
Side is machined with arc holding tank；The arc holding tank is machined with major diameter rounded corner with workpiece contact position；The mixing needle
Main body is connected through a screw thread with mixing needle root and is placed in the static shaft shoulder；The mixing needle root is exposed to the static shaft shoulder under it
End face；The static shaft shoulder does not rotate in stir friction welding process, and motor drive is made of mixing needle main body and mixing needle root
Mixing needle rotates.
Described its diameter of major diameter rounded corner is not less than 6mm.
Internal thread is offered on the inside of the mixing needle root；External screw thread is offered on the outside of the mixing needle main body；It is described to stir
Its depth of internal thread of crown portion is mixed more than its external screw thread depth of mixing needle main body.
Its end of the mixing needle is connected with motor.
The combined type stirring-head of the raising friction stir welding surface quality of the present invention, added by static shaft shoulder lower part
The effect of rolling of the lower face of work can effectively eliminate the defects of stir friction welding process center tap forms arc line, overlap, recess,
Arc holding tank and its major diameter the rounded corner design processed on the static shaft shoulder can effectively reduce the cut of roller compaction process generation, increase
Adjunction head smooth degree, postwelding carry out additional processing without butt joint；It is not required to treat welder's part offer compensating material or has spy
The requirement very designed, using the Plastic Flow of material in the inclination angle enhancing welding process formed between mixing needle and workpiece, raising connects
The mechanical property of head；Using combined type mixing needle, when mixing needle root serious wear, can be individually replaced, and save material.
Figure of description
Using attached drawing, the present invention is further illustrated, but the content in attached drawing does not constitute any limit to the present invention
System.
Fig. 1 is overall structure of the present invention.
Fig. 2 is static its lower face sectional view of the shaft shoulder of the present invention.
Fig. 3 is the static shaft shoulder of the present invention and arc holding tank Local map.
In figs. 1 to 3, including：
The static shaft shoulder 1
Angle a
Lower face 6
Arc holding tank 4
Mixing needle 5
Mixing needle main body 2
Mixing needle root 3
Major diameter rounded corner 7
Diameter d.
Specific implementation mode
The invention will be further described with the following Examples.
Embodiment 1
The present embodiment provides a kind of combined type stirring-heads improving friction stir welding surface quality, such as Fig. 1 to Fig. 3 institutes
Show, including the static shaft shoulder 1 and mixing needle 5；The mixing needle 5 is made of mixing needle main body 2 and mixing needle root 3；It is described static
1 its underpart of the shaft shoulder is machined with the lower face 6 at 3 ° ~ 10 ° angle a with its cross section；Incline in 5 axis of mixing needle the lower face 6
Oblique side is machined with arc holding tank 4；The arc holding tank 4 and workpiece（It is not shown）Contact position is machined with major diameter rounded corner
7；The mixing needle main body 2 is connected through a screw thread with mixing needle root 3 and is placed in the static shaft shoulder 1；Reveal the mixing needle root 3
For its lower face 6 of the static shaft shoulder 1, the static shaft shoulder 1 does not rotate in stir friction welding process, motor（It is not shown）It drives by stirring
The mixing needle 5 for mixing needle main body 2 and the composition of mixing needle root 3 rotates.
In another embodiment, 7 its diameter d of the major diameter rounded corner is not less than 6mm.
In another embodiment, 3 inside of the mixing needle root offers internal thread（It is not shown）；The mixing needle main body 2
Outside offers external screw thread（It is not shown）；3 its depth of internal thread of the mixing needle root is more than its external screw thread depth of mixing needle main body 2
Degree.
In another embodiment, its end of the mixing needle 5 is connected with motor（It is not shown）.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is protected to the present invention
The limitation of range, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art should manage
Solution, technical scheme of the present invention can be modified or replaced equivalently, without departing from technical solution of the present invention essence and
Range.
Claims (2)
1. a kind of combined type stirring-head improving friction stir welding surface quality, it is characterised in that：Including the static shaft shoulder and
Mixing needle；The mixing needle is made of mixing needle main body and mixing needle root；Described static shaft shoulder its underpart is machined with and its cross
Section at 3 °~10 ° angles lower face；The lower face tilts side in stirring needle axis and is machined with arc holding tank；It is described
Arc holding tank is machined with major diameter rounded corner with workpiece contact position；The mixing needle main body is connected with mixing needle root by screw thread
It connects and is placed in the static shaft shoulder；The mixing needle root is exposed to its lower face of the static shaft shoulder；
Described its diameter of major diameter rounded corner is not less than 6mm；
Internal thread is offered on the inside of the mixing needle root；External screw thread is offered on the outside of the mixing needle main body；The mixing needle
Its depth of internal thread of root is more than its external screw thread depth of mixing needle main body.
2. the combined type stirring-head according to claim 1 for improving friction stir welding surface quality, it is characterised in that：
Its end of the mixing needle is connected with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193472.2A CN105772933B (en) | 2016-03-30 | 2016-03-30 | A kind of combined type stirring-head improving friction stir welding surface quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193472.2A CN105772933B (en) | 2016-03-30 | 2016-03-30 | A kind of combined type stirring-head improving friction stir welding surface quality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105772933A CN105772933A (en) | 2016-07-20 |
| CN105772933B true CN105772933B (en) | 2018-08-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610193472.2A Expired - Fee Related CN105772933B (en) | 2016-03-30 | 2016-03-30 | A kind of combined type stirring-head improving friction stir welding surface quality |
Country Status (1)
| Country | Link |
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| CN (1) | CN105772933B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018113680A1 (en) * | 2018-06-08 | 2019-12-12 | Kuka Deutschland Gmbh | Headpiece, welding tool and welding process |
| CN111531269A (en) * | 2020-06-09 | 2020-08-14 | 东北大学 | Groove-type static shaft shoulder stirring friction processing tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144499A (en) * | 1994-03-28 | 1997-03-05 | 威尔丁研究院 | Friction stir welding |
| JP2001205454A (en) * | 2000-01-26 | 2001-07-31 | Kawasaki Heavy Ind Ltd | Joining tool for friction stir joining |
| DE202014000747U1 (en) * | 2014-01-28 | 2014-02-18 | Grenzebach Maschinenbau Gmbh | Friction stir welding device for materials of different thickness and fillet welds |
| CN105195891A (en) * | 2015-11-16 | 2015-12-30 | 长春工业大学 | Static shaft shoulder stirring head with reduced viscosity |
| WO2016006378A1 (en) * | 2014-07-10 | 2016-01-14 | 住友電気工業株式会社 | Rotary tool and welding method |
| CN205464792U (en) * | 2016-03-30 | 2016-08-17 | 广东工业大学 | Qualities of friction stir weld joint surface are improved combination formula stirring head |
-
2016
- 2016-03-30 CN CN201610193472.2A patent/CN105772933B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144499A (en) * | 1994-03-28 | 1997-03-05 | 威尔丁研究院 | Friction stir welding |
| JP2001205454A (en) * | 2000-01-26 | 2001-07-31 | Kawasaki Heavy Ind Ltd | Joining tool for friction stir joining |
| DE202014000747U1 (en) * | 2014-01-28 | 2014-02-18 | Grenzebach Maschinenbau Gmbh | Friction stir welding device for materials of different thickness and fillet welds |
| WO2016006378A1 (en) * | 2014-07-10 | 2016-01-14 | 住友電気工業株式会社 | Rotary tool and welding method |
| CN105195891A (en) * | 2015-11-16 | 2015-12-30 | 长春工业大学 | Static shaft shoulder stirring head with reduced viscosity |
| CN205464792U (en) * | 2016-03-30 | 2016-08-17 | 广东工业大学 | Qualities of friction stir weld joint surface are improved combination formula stirring head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105772933A (en) | 2016-07-20 |
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