CN206029007U - Electron -beam welding connects lap joint structure - Google Patents
Electron -beam welding connects lap joint structure Download PDFInfo
- Publication number
- CN206029007U CN206029007U CN201620991522.7U CN201620991522U CN206029007U CN 206029007 U CN206029007 U CN 206029007U CN 201620991522 U CN201620991522 U CN 201620991522U CN 206029007 U CN206029007 U CN 206029007U
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- Prior art keywords
- lap joint
- boss
- beam welding
- joint structure
- electron beam
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Abstract
The utility model discloses an electron -beam welding connects lap joint structure belongs to aeroengine welded joint structural design technical field, this joint design by the both ends of the outer barrel of taking the boss of mutually supporting and the barrel boss circumferencial direction of taking the interior barrel of boss to constitute including, still the symmetry be equipped with and prevent that the spatter plays to receive arc protection groove. Carry out electron -beam welding and connect and receive the arc in this protection groove, eliminated the do not fuse gap of lap joint at length direction, can effectually prevent fatigue crack's in the part use production. This lap joint structure can be accomplished the spatter thing and seal at the protection inslot, has avoided the spatter thing to come off and has used the influence that leads to the fact to the part.
Description
Technical field
This utility model belongs to aero-engine welded joint structure design field, is related to a kind of electron beam welding and connects
Header structure.
Background technology
Certain type aero-engine air conduit component employs electro-beam welding process, in the inside and outside cylinder of part using convex
Platform structure lap joint carries out electron beam connection, and referring to Fig. 1-1, Fig. 1-2, lap joint fusion length is 6mm, fuses width and is
1mm, due to the impact of design of part factor, the incomplete fusion on lap joint length direction, joint have incomplete fusion seam
Gap, and postwelding cannot process removal, during part life-time service, in inside and outside cylinder part lap joint weld seam incomplete fusion
Fatigue crack is also easy to produce at gap, has a strong impact on the service life of part.
Utility model content
For the defect for overcoming above-mentioned prior art to exist, the purpose of this utility model is to provide a kind of electron beam welding
Lap joint structure, the joint design are simple, reasonable in design, can effectively prevent fatigue crack from producing.
This utility model is to be achieved through the following technical solutions：
A kind of electron beam welding lap joint structure, the joint design is by the outer cylinder body with boss for cooperating and with convex
The inner barrel of platform is constituted, and is also arranged with Anti-welding spatter at the two ends of inner barrel boss circumferencial direction and is played receipts arc protective trough.
The two ends that receipts arc protective trough circumferencial direction is played in Anti-welding spatter are additionally provided with air discharge duct.
The fusion length of the lap joint is 8mm, and the fusion width of the lap joint is 2mm.
Outer cylinder body boss is curved with the contact surface of inner barrel boss.
Anti-welding spatter rises receives arc protective trough ovalize.
Compared with prior art, this utility model has following beneficial technique effect：
Electron beam welding lap joint structure disclosed in this utility model, is arranged at the two ends of inner barrel boss circumferencial direction
Anti-welding spatter rises receives arc protective trough, carries out electron beam welding and rises receiving arc, eliminate lap joint and growing in the protective trough
The incomplete fusion gap in degree direction, can effectively prevent the generation of fatigue crack during part use.The lap joint structure
Spatter thing can be completed to be enclosed in protective trough, it is to avoid spatter thing comes off to part using the impact for causing.
Further, the two ends for playing receipts arc protective trough circumferencial direction in Anti-welding spatter are additionally provided with air discharge duct, and part is in electricity
In beamlet welding process, Anti-welding spatter acts the gas received in arc protective trough and discharges outdoor by air discharge duct, reduces weld seam and lacks
Sunken generation.
Further, the lap joint structure increased inside and outside cylinder boss joint dimension so that the lap joint is fused
Length is 8mm, and fusion width is 2mm (it is 6mm to fuse length in prior art, and fusion width is 1mm), is connect such that it is able to increase
The fusion area of head weld seam, improves the strength of joint of weld seam.
Description of the drawings
Fig. 1-1 is lap joint structural representation in prior art；
Top views of the Fig. 1-2 for Fig. 1-1；
Fig. 2-1 is lap joint structural representation of the present utility model；
Top views of the Fig. 2-2 for Fig. 2-1.
Wherein, 1 is outer cylinder body；2 is inner barrel；3 is that Anti-welding spatter plays receipts arc protective trough；4 is air discharge duct.
Specific embodiment
This utility model is described in further detail with reference to specific embodiment, described is to this utility model
Explanation rather than restriction.
Referring to Fig. 2-1 and Fig. 2-2, a kind of electron beam welding lap joint structure disclosed in this utility model, by phase interworking
The outer cylinder body 1 with boss and the inner barrel with boss 2 for closing is constituted, and (refers to edge at the two ends of 2 boss circumferencial direction of inner barrel
The circumferencial direction of boss structure, is consistent with outer cylinder body, inner barrel circumferencial direction) also it is arranged with Anti-welding spatter receipts arc
Protective trough 3, the two ends for playing 3 circumferencial direction of receipts arc protective trough in Anti-welding spatter are additionally provided with air discharge duct 4.
The joint design, increases inside and outside cylinder boss joint dimension in length with width, and fusion length is 8mm,
Fusion width is 2mm, such that it is able to increase the fusion area of joint welding, improves the strength of joint of weld seam.
Preferably, 1 boss of outer cylinder body is curved with the contact surface of 2 boss of inner barrel.
Preferably, Anti-welding spatter rises and receives 3 ovalize of arc protective trough.
Electron beam welding lap joint structure of the present utility model, when in use：
(1) inside and outside cylinder part is assembled in place, it is ensured that inside and outside cylinder line is consistent.
(2) in vacuum chamber, Anti-welding spatter acts the gas received in arc protective trough by inner barrel boss to part
Air discharge duct discharge.
(3) welding parameter is selected to carry out electron beam welding, it is allowed to which three electron beam welds arranged side by side ensure weld seam lap joint
The requirement of fusion length and width.
(4) the line starting the arc, receipts arc in inner barrel boss protective trough, spatter thing have been completely enclosed within receipts arc protective trough
It is interior, it is to avoid spatter thing comes off to part using impacting.
Claims (6)
1. a kind of electron beam welding lap joint structure, it is characterised in that the joint design is outer with boss by what is cooperated
Cylinder (1) and the inner barrel with boss (2) are constituted, and are also arranged with anti-welding at the two ends of inner barrel (2) boss circumferencial direction
Splash and received arc protective trough (3).
2. electron beam welding lap joint structure according to claim 1, it is characterised in that rise in Anti-welding spatter and receive arc
The two ends of protective trough (3) circumferencial direction are additionally provided with air discharge duct (4).
3. electron beam welding lap joint structure according to claim 1, it is characterised in that the fusion of the lap joint is long
Spend for 8mm.
4. electron beam welding lap joint structure according to claim 1, it is characterised in that the fusion width of the lap joint
Spend for 2mm.
5. electron beam welding lap joint structure according to claim 1, it is characterised in that outer cylinder body (1) boss with it is interior
The contact surface of cylinder (2) boss is curved.
6. electron beam welding lap joint structure according to claim 1, it is characterised in that Anti-welding spatter rises to be received arc and prevent
Protecting groove (3) ovalize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620991522.7U CN206029007U (en) | 2016-08-29 | 2016-08-29 | Electron -beam welding connects lap joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620991522.7U CN206029007U (en) | 2016-08-29 | 2016-08-29 | Electron -beam welding connects lap joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206029007U true CN206029007U (en) | 2017-03-22 |
Family
ID=58304352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620991522.7U Active CN206029007U (en) | 2016-08-29 | 2016-08-29 | Electron -beam welding connects lap joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206029007U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605517A (en) * | 2020-12-14 | 2021-04-06 | 西安航天动力机械有限公司 | Method for avoiding arc starting and closing defects of longitudinal seam electron beam welding |
| CN114713959A (en) * | 2022-04-19 | 2022-07-08 | 中国航发动力股份有限公司 | Aero-engine cylinder assembly double-face forming welded joint and forming method thereof |
-
2016
- 2016-08-29 CN CN201620991522.7U patent/CN206029007U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605517A (en) * | 2020-12-14 | 2021-04-06 | 西安航天动力机械有限公司 | Method for avoiding arc starting and closing defects of longitudinal seam electron beam welding |
| CN112605517B (en) * | 2020-12-14 | 2022-06-21 | 西安航天动力机械有限公司 | Method for avoiding arc starting and closing defects of longitudinal seam electron beam welding |
| CN114713959A (en) * | 2022-04-19 | 2022-07-08 | 中国航发动力股份有限公司 | Aero-engine cylinder assembly double-face forming welded joint and forming method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee after: AECC AVIATION POWER CO., LTD. Address before: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee before: AVIC AVIATION ENGINE CORPORATION PLC |
|
| CP01 | Change in the name or title of a patent holder |