CN205464792U - Qualities of friction stir weld joint surface are improved combination formula stirring head - Google Patents
Qualities of friction stir weld joint surface are improved combination formula stirring head Download PDFInfo
- Publication number
- CN205464792U CN205464792U CN201620258100.9U CN201620258100U CN205464792U CN 205464792 U CN205464792 U CN 205464792U CN 201620258100 U CN201620258100 U CN 201620258100U CN 205464792 U CN205464792 U CN 205464792U
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- China
- Prior art keywords
- mixing needle
- shank
- friction stir
- shaft shoulder
- pin
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Abstract
The utility model discloses a qualities of friction stir weld joint surface are improved combination formula stirring head, including the static shaft shoulder and shank -pin, shank -pin comprises shank -pin main part and shank -pin root, its the lower part processing of the static shaft shoulder has the lower terminal surface that becomes 3~10 contained angles rather than the cross section, the terminal surface has the arc holding tank in shank -pin axis slope one side processing down, the arc holding tank has major diameter radius angle with work piece contact department processing, shank -pin main part and shank -pin root are through threaded connection and place the stationary axle shoulder in, the shank -pin root exposes in static shaft shoulder terminal surface under it. The utility model discloses a qualities of friction stir weld joint surface are improved combination formula stirring head, defects such as can effectively eliminating friction stir welding and take over journey middle connector formation arc line, overlap, cave in, can effectively reduce the mar that the process that rolls produced, the increase connects smooth degree, improves the mechanical properties who connects, and has improved material utilization rate.
Description
Technical field
This utility model relates to a kind of agitating friction welding stirring-head, particularly relates to a kind of agitating friction that improves and welds
The combination type stirring-head of head surface quality, belongs to technical field of welding equipment.
Background technology
A kind of solid diffusivity technique of agitating friction weldering conduct is because the features such as its deformation little, strength of joint is high, environmental protection are in space flight
Continuous popularization and application in the fields such as aviation, automobile, boats and ships, traditional agitating friction welding stirring-head is mainly by the shaft shoulder and stirring
Pin forms, and workpiece applies enough vertical to ensure enough heat inputs by the shaft shoulder that rotates, and this is not it is avoided that
Producing continuous print arcing surface stricture of vagina, depression and overlap on joint, this will affect the attractive in appearance of joint and intensity, must pass through follow-up
Machining is eliminated, and this will increase workload thus affect production efficiency.Prior art takes on agitating friction by dead axle
The technology such as weldering, the auxiliary agitating friction weldering of additional backing plate improve joint surface defect.Although dead axle shoulder agitating friction welding technology eliminates
Joint surface arc stricture of vagina, but cannot avoid the joint to cave in；Though the auxiliary agitating friction weldering of additional backing plate can eliminate surface defect, but still
Surface need to carry out Milling Machining and polishing, and spillage of material amount adds greatly and undoubtedly workload.Wherein, China Patent Publication No.
CN103447685A discloses a kind of Friction stir welding method of eliminating surface recesses with arc line features, in this process
Dead axle shoulder stirring-head is utilized the workpiece with boss to be stirred friction welding, though joint surface arc stricture of vagina and recessed can be avoided the formation of
Fall into, but the boss design needed for its workpiece adds the requirement of butt-welding fitting undoubtedly；Furthermore, in dead axle shoulder welding process, by sending out
Motivation drives mixing needle to only have mixing needle root when rotating and participates in severe friction, thus mixing needle root genus is easily lost position, often
Often needing to change whole mixing needle, this also results in significant wastage.
Summary of the invention
There is provided a kind of in place of the purpose of this utility model is to avoid the deficiencies in the prior art and improve agitating friction welding
The combination type stirring-head of head surface quality, can effectively eliminate stir friction welding process center tap and form arc stricture of vagina, overlap, depression etc.
Defect；Can effectively reduce the cut that roller compaction process produces, increase joint smooth degree, improve the mechanical property of joint, and improve
Stock utilization.
The purpose of this utility model is realized by following technological means: raising friction stir welding table of the present utility model
The combination type stirring-head of face quality, including the static shaft shoulder and mixing needle；Described mixing needle is by mixing needle main body and mixing needle root
Composition；Described static shaft shoulder its underpart is machined with the lower surface becoming 3 ° ~ 10 ° of angles with its cross section；Described lower surface is in stirring
Needle axis tilts side and is machined with arc holding tank；It is machined with major diameter rounding at described arc holding tank and absorption surface；
Described mixing needle main body and mixing needle root are threaded connection and are placed in the static shaft shoulder；Described mixing needle root is exposed to quiet
Only its lower surface of the shaft shoulder；In stir friction welding process, the static shaft shoulder does not rotates, and driven by motor is by mixing needle main body and mixing needle
The mixing needle of root composition rotates.
Described its diameter of major diameter rounding is not less than 6mm.
Female thread is offered inside described mixing needle root；External screw thread is offered outside described mixing needle main body；Described stir
Mix its depth of internal thread of crown portion more than its external screw thread degree of depth of mixing needle main body.
Its end of described mixing needle connects motor.
The combination type stirring-head of raising friction stir welding surface quality of the present utility model, utilizes static shaft shoulder bottom
The effect of rolling of the lower surface processed can effectively eliminate stir friction welding process center tap and form arc stricture of vagina, overlap, depression etc.
Defect, on the static shaft shoulder, arc holding tank and the design of major diameter rounding thereof of processing can effectively reduce drawing of roller compaction process generation
Trace, increases joint smooth degree, and postwelding carries out additional processing without butt joint；Be not required to treat welder's part provide compensate material or
There is the requirement of particular design, utilize the inclination angle formed between mixing needle and workpiece to strengthen the Plastic Flow of material in welding process, carry
The mechanical property of high joint；Use combination type mixing needle, can be individually replaced during mixing needle root serious wear, save material.
Figure of description
Utilize accompanying drawing that this utility model is further described, but the content in accompanying drawing is not constituted of the present utility model
Any restriction.
Fig. 1 is this utility model overall structure schematic diagram.
Fig. 2 is its lower surface sectional view of the static shaft shoulder of this utility model.
Fig. 3 is the static shaft shoulder of this utility model and arc holding tank Local map.
In Fig. 1 to Fig. 3, including:
The static shaft shoulder 1
Angle a
Lower surface 6
Arc holding tank 4
Mixing needle 5
Mixing needle main body 2
Mixing needle root 3
Major diameter rounding 7
Diameter d.
Detailed description of the invention
The utility model is described in further detail with the following Examples.
Embodiment 1
The present embodiment provides a kind of combination type stirring-head improving friction stir welding surface quality, such as Fig. 1 to Fig. 3 institute
Show, including the static shaft shoulder 1 and mixing needle 5；Described mixing needle 5 is made up of mixing needle main body 2 and mixing needle root 3；Described static
The shaft shoulder 1 its underpart is machined with the lower surface 6 becoming 3 ° ~ 10 ° of angle a with its cross section；Incline in mixing needle 5 axis in described lower surface 6
Tiltedly side is machined with arc holding tank 4；Described arc holding tank 4 is machined with major diameter rounding with workpiece (not shown) contact position
7；Described mixing needle main body 2 is threaded connection with mixing needle root 3 and is placed in the static shaft shoulder 1；Described mixing needle root 3 reveals
For its lower surface 6 of the static shaft shoulder 1, in stir friction welding process, the static shaft shoulder 1 does not rotates, and motor (not shown) drives by stirring
The mixing needle 5 mixing pin main body 2 and mixing needle root 3 composition rotates.
In another embodiment, described major diameter rounding 7 its diameter d is not less than 6mm.
In another embodiment, inside described mixing needle root 3, offer female thread (not shown)；Described mixing needle main body 2
Outside offers external screw thread (not shown)；Described its depth of internal thread of mixing needle root 3 is deep more than its external screw thread of mixing needle main body 2
Degree.
In another embodiment, described its end of mixing needle 5 connects motor (not shown).
It is last it should be noted that, above example is only in order to illustrate the technical solution of the utility model rather than to this practicality
The restriction of novel protected scope, although this utility model being explained in detail with reference to preferred embodiment, the common skill of this area
Art personnel should be appreciated that and can modify the technical solution of the utility model or equivalent, without deviating from this practicality
The spirit and scope of new technique scheme.
Claims (4)
1. the combination type stirring-head improving friction stir welding surface quality, it is characterised in that: include the static shaft shoulder and
Mixing needle；Described mixing needle is made up of mixing needle main body and mixing needle root；Described static shaft shoulder its underpart is machined with horizontal with it
Cross section becomes the lower surface of 3 ° ~ 10 ° of angles；Described lower surface tilts side in mixing needle axis and is machined with arc holding tank；Described
It is machined with major diameter rounding at arc holding tank and absorption surface；Described mixing needle main body is with mixing needle root by screw thread even
Connect and be placed in the static shaft shoulder；Described mixing needle root is exposed to its lower surface of the static shaft shoulder.
The combination type stirring-head of raising friction stir welding surface quality the most according to claim 1, it is characterised in that:
Described its diameter of major diameter rounding is not less than 6mm.
The combination type stirring-head of raising friction stir welding surface quality the most according to claim 1, it is characterised in that:
Female thread is offered inside described mixing needle root；External screw thread is offered outside described mixing needle main body；Described mixing needle root
Its depth of internal thread is more than its external screw thread degree of depth of mixing needle main body.
The combination type stirring-head of raising friction stir welding surface quality the most according to claim 1, it is characterised in that:
Its end of described mixing needle connects motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620258100.9U CN205464792U (en) | 2016-03-30 | 2016-03-30 | Qualities of friction stir weld joint surface are improved combination formula stirring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620258100.9U CN205464792U (en) | 2016-03-30 | 2016-03-30 | Qualities of friction stir weld joint surface are improved combination formula stirring head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205464792U true CN205464792U (en) | 2016-08-17 |
Family
ID=56648127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620258100.9U Expired - Fee Related CN205464792U (en) | 2016-03-30 | 2016-03-30 | Qualities of friction stir weld joint surface are improved combination formula stirring head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205464792U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772933A (en) * | 2016-03-30 | 2016-07-20 | 广东工业大学 | Combined stirring head capable of improving quality of surface of friction stir welding connector |
| CN109202267A (en) * | 2017-09-29 | 2019-01-15 | 中国航空制造技术研究院 | A kind of dead axle shoulder friction stir welding method |
-
2016
- 2016-03-30 CN CN201620258100.9U patent/CN205464792U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772933A (en) * | 2016-03-30 | 2016-07-20 | 广东工业大学 | Combined stirring head capable of improving quality of surface of friction stir welding connector |
| CN105772933B (en) * | 2016-03-30 | 2018-08-07 | 广东工业大学 | A kind of combined type stirring-head improving friction stir welding surface quality |
| CN109202267A (en) * | 2017-09-29 | 2019-01-15 | 中国航空制造技术研究院 | A kind of dead axle shoulder friction stir welding method |
| CN109202267B (en) * | 2017-09-29 | 2021-06-08 | 中国航空制造技术研究院 | Static shaft shoulder friction stir welding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20200330 |