CN106735827A - A kind of martensitic stain less steel electron beam welding control method - Google Patents
A kind of martensitic stain less steel electron beam welding control method Download PDFInfo
- Publication number
- CN106735827A CN106735827A CN201611170291.4A CN201611170291A CN106735827A CN 106735827 A CN106735827 A CN 106735827A CN 201611170291 A CN201611170291 A CN 201611170291A CN 106735827 A CN106735827 A CN 106735827A
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- China
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- welding
- welded
- electron beam
- control method
- martensitic stain
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Classifications
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- 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
- B23K15/00—Electron-beam welding or cutting
-
- 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
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
- B23K2103/05—Stainless steel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Welding Or Cutting Using Electron Beams (AREA)
Abstract
The invention discloses a kind of martensitic stain less steel electron beam welding control method, comprise the following steps：Step 1, pipe fitting to be welded is placed under vacuum environment；Step 2, is stirred using elliptic function to welding pool；Step 3, for different throat thickness, using different speeds of welding, is conducive to the elimination of stomata, air pocket.Soldering part is treated using level electron beam penetration welding manner to be welded, can realize the two-sides forming of part, and be effectively reduced the stomata and air pocket produced in welding, improve the welding quality and processing efficiency of engine component.
Description
Technical field
The invention belongs to electron beam welding technology field, it is related to a kind of martensitic stain less steel electron beam welding control method.
Background technology
China is in the manufacture of gas turbine and aero-engine, and the electron beam welding of martensitic stain less steel is particularly common.
The electron beam welding of martensitic stain less steel often occurs the defects such as stomata, air pocket, has a strong impact on processing efficiency, have impact on and starts
The producing efficiency of machine, extends the fabrication cycle of engine to a certain extent.The generation of stomata, air pocket how is reduced, one is improved
Secondary solder yield, the electron beam welding for martensitic stain less steel is significant.
The content of the invention
It is an object of the invention to provide a kind of martensitic stain less steel electron beam welding control method.Weldering can effectively be reduced
The stomata and air pocket of middle generation are connect, the processing efficiency and producing efficiency of engine is improve.
The purpose of the present invention is achieved through the following technical solutions：
This martensitic stain less steel electron beam welding control method, comprises the following steps：Step 1, pipe fitting to be welded is put
In under vacuum environment；Step 2, is stirred using elliptic function to welding pool；Step 3, use level electron beam is used and worn
Saturating formula welding manner is treated soldering part and is welded.
Further, the features of the present invention is also resided in：
The vacuum of vacuum environment is 5*10 wherein in step 1-4mbar。
Wherein the major axis of elliptic function is consistent with welding direction in step 2.
When the thickness of pipe fitting to be welded is less than 20mm wherein in step 3, speed of welding is 8-10mm/s.
When the thickness of pipe fitting to be welded is not less than 20mm wherein in step 3, speed of welding is 4-5mm/s.
When the thickness of pipe fitting to be welded is more than or equal to 25mm wherein in step 3, welded using Vertical electron Shu Jinhang.
When pipe fitting to be welded includes multiple circular welds wherein in step 3, first carry out carrying out overall positioning to part, then
Weld seam is welded successively.
The beneficial effects of the invention are as follows：Welding pool is stirred using elliptic function in welding, while reducing molten
The cooling velocity in pond, improves the liquid state molten pool residence time, is conducive to the effusion of gas；Use level electron beam is welded simultaneously
Connect, be conducive to gas from two effusions of passage；Using welding manner is penetrated, the electron beam of level can join in same welding
Under several, increase the depth of weld, and overcome influence of the gravity to appearance of weld, make weld seam full, two-sides forming.
Further, by test of many times, when the major axis of elliptic function is consistent with welding direction of advance, molten bath it is cold
But, liquid state molten pool is stopped and gas effusion effect is best.
Further, for the difference of part thickness to be welded, using different speed of welding and welding manner, make not
The soldering part of stack pile can realize more preferable welding effect.
Further, for the part of multiple circular welds, first carry out overall tack welding, then weld seam welded successively
Connect, it is to avoid because of welding, to shrink the gap that causes overproof, while avoid the possibility that gas hole defect is caused due to weld gap
Property.
Specific embodiment
The present invention is described in further detail with reference to specific embodiment：
The invention provides a kind of martensitic stain less steel electron beam welding control method, its specific steps includes：
Step 1, pipe fitting to be welded is placed under vacuum environment, and vacuum is 4*10-4mbar。
Step 2, is stirred using elliptic function to welding pool, and the wherein major axis of elliptic function is same with welding direction
To.
Step 3, when the thickness of pipe fitting to be welded is more than 25mm, is welded using Vertical electron Shu Jinhang penetration；Wherein treat
When the thickness of soldering part is less than 20mm, use level electron beam carries out penetration welding, and speed of welding is 8-10mm/s；It is to be welded
When the thickness of pipe fitting is more than or equal to 20mm, use level electron beam carries out penetration welding, and speed of welding is 4-5mm/s.When
Part includes multiple circular welds, first carries out overall tack welding, then weld seam welded successively.
Specific embodiment of the invention is：
Embodiment 1
The welding of circular weld is carried out to martensitic stain less steel pipe fitting to be welded, the thickness of pipe fitting to be welded is 12mm, weldering
The detailed process for connecing is：
Step 1, pipe fitting to be welded is placed in vacuum environment, and its vacuum is 5*10-4mbar。
Step 2, is stirred using elliptic function to welding pool, and the wherein major axis of elliptic function is same with welding direction
To.
Step 3, treats soldering part and is welded, first in circular weld using level electron beam penetration welding manner
It is upper first to carry out tack welding, and tack weld firm welding, then electron beam welding is carried out to part, wherein speed of welding is
10mm/s。
Embodiment 2
The welding of circular weld is carried out to martensitic stain less steel pipe fitting to be welded, the thickness of pipe fitting to be welded is 18mm, weldering
The detailed process for connecing is：
Step 1, pipe fitting to be welded is placed in vacuum environment, and its vacuum is 5*10-4mbar。
Step 2, is stirred using elliptic function to welding pool, and the wherein major axis of elliptic function is same with welding direction
To.
Step 3, treats soldering part and is welded, first in circular weld using level electron beam penetration welding manner
It is upper first to carry out tack welding, and tack weld firm welding, then electron beam welding is carried out to part, wherein speed of welding is 8mm/
s。
Embodiment 3
3 welding of circular weld are carried out to martensitic stain less steel pipe fitting to be welded, the thickness of pipe fitting to be welded is 20mm,
The detailed process of welding is：
Step 1, pipe fitting to be welded is placed in vacuum environment, and its vacuum is 4*10-4mbar。
Step 2, is stirred using elliptic function to welding pool, and the wherein major axis of elliptic function is same with welding direction
To.
Step 3, treats soldering part and is welded, first in circular weld using level electron beam penetration welding manner
It is upper first to carry out tack welding, and tack weld firm welding, then electron beam welding is carried out to part, wherein speed of welding is
5mm/s。
Embodiment 5
3 welding of circular weld are carried out to martensitic stain less steel pipe fitting to be welded, the thickness of pipe fitting to be welded is 24mm,
The detailed process of welding is：
Step 1, pipe fitting to be welded is placed in vacuum environment, and its vacuum is 5*10-4mbar。
Step 2, is stirred using elliptic function to welding pool, and the wherein major axis of elliptic function is same with welding direction
To.
Step 3, treats soldering part and is welded, first to 3 annulars using level electron beam penetration welding manner
Weld seam carries out tack welding, and tack weld firm welding, then 3 weld seams is welded successively again, wherein speed of welding
It is 5mm/s.
Embodiment 6
4 welding of circular weld are carried out to martensitic stain less steel pipe fitting to be welded, the thickness of pipe fitting to be welded is 28mm,
The detailed process of welding is：
Step 1, pipe fitting to be welded is placed in vacuum environment, and its vacuum is 5*10-4mbar。
Step 2, is stirred using elliptic function to welding pool, and the wherein major axis of elliptic function is same with welding direction
To.
Step 3, penetration welding is carried out using level electron beam and Vertical electron beam to part.First to 4 annular welds
Seam carries out tack welding, and tack weld firm welding, 4 weld seams is welded successively from top to bottom again then, wherein welding
Speed is connect for 4mm/s.
Using the method for the present invention, the stomata problem of the electron beam welding of martensitic stain less steel is efficiently controlled,
Slab can realize two-sides forming, and appearance of weld is full, and inside does not also find stomata, the air pocket residual beyond standard, for medium
The part of thickness, the problem of linear porosity is also resolved, and one time solder yield is greatly improved.
Claims (7)
1. a kind of martensitic stain less steel electron beam welding control method, it is characterised in that comprise the following steps：
Step 1, pipe fitting to be welded is placed under vacuum environment；
Step 2, is stirred using elliptic function to welding pool；
Step 3, use level electron beam is treated soldering part and is welded using penetration welding manner.
2. martensitic stain less steel electron beam welding control method according to claim 1, it is characterised in that the step 1
Vacuum≤the 5*10 of middle vacuum environment-4mbar。
3. martensitic stain less steel electron beam welding control method according to claim 1, it is characterised in that the step 2
The major axis of middle elliptic function is consistent with welding direction.
4. the martensitic stain less steel electron beam welding control method according to claim 1-3 any one, it is characterised in that
When the thickness of pipe fitting to be welded is less than 20mm in the step 3, speed of welding is 8-10mm/s.
5. the martensitic stain less steel electron beam welding control method according to claim 1-3 any one, it is characterised in that
When the thickness of pipe fitting to be welded is not less than 20mm in the step 3, speed of welding is 4-5mm/s.
6. martensitic stain less steel electron beam welding control method according to claim 5, it is characterised in that the step 3
In pipe fitting to be welded thickness be more than 25mm when, welded using Vertical electron Shu Jinhang.
7. the martensitic stain less steel electron beam welding control method according to claim 1-3 any one, it is characterised in that
The detailed process of welding is in the step 3：When pipe fitting to be welded includes multiple annular multiple weld seams, several are first carried out first
Tack weld treats soldering part and carries out overall positioning, and then weld seam is welded successively again.
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| CN201611170291.4A CN106735827B (en) | 2016-12-16 | 2016-12-16 | A kind of martensitic stain less steel electron beam welding control method |
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| CN201611170291.4A CN106735827B (en) | 2016-12-16 | 2016-12-16 | A kind of martensitic stain less steel electron beam welding control method |
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| CN106735827B CN106735827B (en) | 2019-11-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365980A (en) * | 2018-12-10 | 2019-02-22 | 淮南新能源研究中心 | A kind of vacuum electron beam welding method and vacuum chamber |
| CN110560873A (en) * | 2019-07-25 | 2019-12-13 | 沈阳富创精密设备有限公司 | Vacuum electron beam welding method for stainless steel water cooling ring |
| CN111375880A (en) * | 2020-03-31 | 2020-07-07 | 中国航发动力股份有限公司 | Electron beam welding method for rotor parts |
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| JPH1015671A (en) * | 1996-05-13 | 1998-01-20 | Mitsubishi Heavy Ind Ltd | Welding method for electron beam welding structure of different material |
| RU2238828C1 (en) * | 2003-05-05 | 2004-10-27 | Нижегородское открытое акционерное общество "Гидромаш" | High-strength steel electronic beam welding method |
| CN101412149A (en) * | 2007-10-17 | 2009-04-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Electron-bombardment welding technique |
| CN101690991A (en) * | 2009-10-14 | 2010-04-07 | 重庆理工大学 | Ultrasonic auxiliary vacuum electron beam welding method of aluminum and aluminum alloy |
| CN102500906A (en) * | 2011-11-04 | 2012-06-20 | 中国科学院金属研究所 | Method for welding heterogeneous austenitic stainless steel plates |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109365980A (en) * | 2018-12-10 | 2019-02-22 | 淮南新能源研究中心 | A kind of vacuum electron beam welding method and vacuum chamber |
| CN110560873A (en) * | 2019-07-25 | 2019-12-13 | 沈阳富创精密设备有限公司 | Vacuum electron beam welding method for stainless steel water cooling ring |
| CN111375880A (en) * | 2020-03-31 | 2020-07-07 | 中国航发动力股份有限公司 | Electron beam welding method for rotor parts |
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| CN106735827B (en) | 2019-11-05 |
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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 |
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