CN105364292A - Welding deformation control method for thin-walled double-layer titanium alloy seal retainer - Google Patents
Welding deformation control method for thin-walled double-layer titanium alloy seal retainer Download PDFInfo
- Publication number
- CN105364292A CN105364292A CN201510836104.0A CN201510836104A CN105364292A CN 105364292 A CN105364292 A CN 105364292A CN 201510836104 A CN201510836104 A CN 201510836104A CN 105364292 A CN105364292 A CN 105364292A
- Authority
- CN
- China
- Prior art keywords
- sealing seat
- wall
- seal retainer
- retainer body
- outside wall
- 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.)
- Pending
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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
- 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
- B23K15/00—Electron-beam welding or cutting
- B23K15/0006—Electron-beam welding or cutting specially adapted for particular articles
-
- 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
- B23K15/0033—Preliminary treatment
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/14—Titanium or alloys thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/01—Aircraft parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A Welding deformation control method for a thin-walled double-layer titanium alloy seal retainer comprises the steps that welding connectors of installation edges of the inner wall and the outer wall of a front seal retainer body are designed to be in a butt-joint mode provided with a lock bottom; and the middle section of the inner wall of the front seal retainer body, the middle section of the outer wall of the front seal retainer body, the front installation edge and the rear installation edge are lathed. The method specifically comprises the steps that the middle section of the inner wall of the front seal retainer body and the middle section of the outer wall of the front seal retainer body are machined, and then the two end faces of the middle section of the inner wall of the front seal retainer body and the two end faces of the middle section of the outer wall of the front seal retainer body are lathed; then the middle section of the inner wall of the front seal retainer body and the middle section of the outer wall of the front seal retainer body are made to be in butt joint with the front installation edge and the rear installation edge, and the butt joint dimension is guaranteed; finally lathing is conducted, and butt joint gaps of subsequent electron beam welding are met; and heat shaping clamps are added in the heat treatment process of the front seal retainer body after welding. The method further comprises the specific steps that an inner wall assembly and an outer wall assembly of the front seal retainer body are installed in the heat shaping clamps respectively, each heat shaping clamp is composed of a chassis and a mold core, and the straight section dimension accuracy and cylindricity after welding of the inner wall assembly and the outer wall assembly through the chassis and the mold cores of the heat shaping clamps.
Description
Technical field
The invention belongs to technical field of aircraft engine part manufacture, particularly relate to a kind of welding deformation controlling method of thin-walled twin-layer titanium alloy sealing seat.
Background technology
The front sealing seat of certain type aero-engine is as shown in Figure 1 thin-walled twin-layer titanium alloy structure, and is positioned at the one-level dish core of aero-engine, and front sealing seat inner surface matches with comb tooth of obturaging, for obturaging to bearing.
Due to the structural particularity of above-mentioned front sealing seat, compared with other parts of obturaging of aero-engine, front sealing seat is more yielding in welding processing process, once occur that welding deformation amount is excessive, to directly cause scrapping of front sealing seat part, thus have a strong impact on the normal Development Schedule of aero-engine.
Summary of the invention
For prior art Problems existing, the invention provides a kind of welding deformation controlling method of thin-walled twin-layer titanium alloy sealing seat, under the prerequisite not changing original welding procedure, the weld industry to sealing seat part can be met, thus improve the product qualified rate of sealing seat part.
To achieve these goals, the present invention adopts following technical scheme: a kind of welding deformation controlling method of thin-walled twin-layer titanium alloy sealing seat, comprises the steps:
Step one: the docking pattern welding point of the inside and outside wall mounting edge of front sealing seat being designed to the locking end;
Step 2: the inside and outside wall stage casing of front sealing seat and forward and backward mounting edge are carried out joining Vehicle Processing;
Step 3: carry out increasing thermal finalization fixture in PWHT procedures at front sealing seat.
The specific operation process of step 2 is: first by after the inside and outside wall stage casing machine-shaping of front sealing seat, again the both ends of the surface in the inside and outside wall stage casing of front sealing seat are machined, then the inside and outside wall stage casing of front sealing seat is docked with forward and backward mounting edge, and ensure connection dimension, finally carry out joining Vehicle Processing, and meet the butt-joint clearance of Subsequent electronic bundle welding.
The specific operation process of step 3 is: be respectively installed in respective thermal finalization fixture by the inside and outside wall assembly of front sealing seat, wherein thermal finalization fixture is made up of chassis and type tire, is controlled postwelding straight section dimensional accuracy and the cylindricity of inside and outside wall assembly by the chassis of thermal finalization fixture and type tire.
Beneficial effect of the present invention:
The present invention is designed to the docking pattern at the locking end by the welding point of the inside and outside wall mounting edge by front sealing seat, by the inside and outside wall stage casing of front sealing seat and forward and backward mounting edge are carried out joining Vehicle Processing, and by carrying out at front sealing seat increasing thermal finalization fixture in PWHT procedures, can under the prerequisite not changing original welding procedure, the weld industry to sealing seat part can be met, thus improve the product qualified rate of sealing seat part.
Accompanying drawing explanation
Fig. 1 is the structural representation of sealing seat before certain type;
Fig. 2 is the docking pattern schematic diagram of the welding point of the inside and outside wall mounting edge of front sealing seat;
Fig. 3 is the inwall of front sealing seat and the assembling schematic diagram of thermal finalization fixture;
Fig. 4 is the outer wall of front sealing seat and the assembling schematic diagram of thermal finalization fixture;
In figure, 1-inwall stage casing, mounting edge before 2-inwall, mounting edge after 3-inwall, 4-outer wall stage casing, mounting edge before 5-outer wall, mounting edge after 6-outer wall, 7-inside and outside wall stage casing, 8-inside and outside wall mounting edge, 9-lock end, 10-chassis, 11-type tire, 12-front sealing seat inwall, 13-front sealing seat outer wall.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
A welding deformation controlling method for thin-walled twin-layer titanium alloy sealing seat, comprises the steps:
Step one: the welding point of the inside and outside wall mounting edge of front sealing seat adopts the docking pattern at the locking end, as shown in Figure 2;
By on-the-spot actual measurement many batches of parts, after the inside and outside wall stage casing drawing of front sealing seat, two ends and mounting edge joint material thickness are thinned to 1.0mm, 0.8mm respectively by former 1.2mm, 1.0mm, and this to be equipped with mounting edge follow-up inside and outside wall stage casing and to weld considerable influence of having ground one's teeth.For this reason, electron beam welded structure that is internal, outer wall mounting edge is needed to improve, inside and outside wall mounting edge joint size adjusting by front sealing seat is equal with material thickness after the drawing of inside and outside wall stage casing, eliminate because the thinning welding caused in inside and outside wall stage casing is ground one's teeth, when ensureing effective fusion penetration and orientation assemble, the defect of generation is effectively controlled divide at lock bottom, postwelding is removed lock bottom by machining mode again and is divided, thus can effectively get rid of and solve the root defect of back of weld.
Step 2: the inside and outside wall stage casing of front sealing seat and forward and backward mounting edge are carried out joining Vehicle Processing;
First by after the inside and outside wall stage casing machine-shaping of front sealing seat, again the both ends of the surface in the inside and outside wall stage casing of front sealing seat are machined, then the inside and outside wall stage casing of front sealing seat is docked with forward and backward mounting edge, and ensure connection dimension, finally carry out joining Vehicle Processing, and meet the butt-joint clearance of Subsequent electronic bundle welding.
Step 3: carry out increasing thermal finalization fixture in PWHT procedures at front sealing seat, as shown in Figure 3,4;
Be respectively installed in respective thermal finalization fixture by the inside and outside wall assembly of front sealing seat, thermal finalization fixture is made up of chassis and type tire, is controlled postwelding straight section dimensional accuracy and the cylindricity of inside and outside wall assembly by thermal finalization fixture chassis and type tire.
Scheme in embodiment is also not used to limit scope of patent protection of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and is all contained in the scope of the claims of this case.
Claims (3)
1. a welding deformation controlling method for thin-walled twin-layer titanium alloy sealing seat, is characterized in that comprising the steps:
Step one: the docking pattern welding point of the inside and outside wall mounting edge of front sealing seat being designed to the locking end;
Step 2: the inside and outside wall stage casing of front sealing seat and forward and backward mounting edge are carried out joining Vehicle Processing;
Step 3: carry out increasing thermal finalization fixture in PWHT procedures at front sealing seat.
2. the welding deformation controlling method of a kind of thin-walled twin-layer titanium alloy sealing seat according to claim 1, it is characterized in that: the specific operation process of step 2 is: first by after the inside and outside wall stage casing machine-shaping of front sealing seat, again the both ends of the surface in the inside and outside wall stage casing of front sealing seat are machined, then the inside and outside wall stage casing of front sealing seat is docked with forward and backward mounting edge, and ensure connection dimension, finally carry out joining Vehicle Processing, and meet the butt-joint clearance of Subsequent electronic bundle welding.
3. the welding deformation controlling method of a kind of thin-walled twin-layer titanium alloy sealing seat according to claim 1, it is characterized in that: the specific operation process of step 3 is: the inside and outside wall assembly of front sealing seat is respectively installed in respective thermal finalization fixture, wherein thermal finalization fixture is made up of chassis and type tire, is controlled postwelding straight section dimensional accuracy and the cylindricity of inside and outside wall assembly by the chassis of thermal finalization fixture and type tire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836104.0A CN105364292A (en) | 2015-11-25 | 2015-11-25 | Welding deformation control method for thin-walled double-layer titanium alloy seal retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836104.0A CN105364292A (en) | 2015-11-25 | 2015-11-25 | Welding deformation control method for thin-walled double-layer titanium alloy seal retainer |
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| CN105364292A true CN105364292A (en) | 2016-03-02 |
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| CN201510836104.0A Pending CN105364292A (en) | 2015-11-25 | 2015-11-25 | Welding deformation control method for thin-walled double-layer titanium alloy seal retainer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312284A (en) * | 2016-10-19 | 2017-01-11 | 中国兵器科学研究院宁波分院 | Vacuum electron beam welding method for titanium alloy narrow-gap weld joints |
| CN106513972A (en) * | 2016-11-23 | 2017-03-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Vacuum electronic beam welding method of brush sealing ring assemblies |
| CN106862746A (en) * | 2017-03-08 | 2017-06-20 | 西北工业大学 | A kind of high-temperature titanium alloy thin-section casting electro-beam welding method |
| CN111590227A (en) * | 2020-06-03 | 2020-08-28 | 广东高沃科技有限公司 | Method for processing oxygen injector of vortex thruster |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312284A (en) * | 2016-10-19 | 2017-01-11 | 中国兵器科学研究院宁波分院 | Vacuum electron beam welding method for titanium alloy narrow-gap weld joints |
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| CN106513972A (en) * | 2016-11-23 | 2017-03-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Vacuum electronic beam welding method of brush sealing ring assemblies |
| CN106862746A (en) * | 2017-03-08 | 2017-06-20 | 西北工业大学 | A kind of high-temperature titanium alloy thin-section casting electro-beam welding method |
| CN106862746B (en) * | 2017-03-08 | 2019-05-10 | 西北工业大学 | A kind of high-temperature titanium alloy thin-section casting electro-beam welding method |
| CN111590227A (en) * | 2020-06-03 | 2020-08-28 | 广东高沃科技有限公司 | Method for processing oxygen injector of vortex thruster |
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Application publication date: 20160302 |
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