CN114985897B - Leaf disc welding method - Google Patents
Leaf disc welding method Download PDFInfo
- Publication number
- CN114985897B CN114985897B CN202210789542.6A CN202210789542A CN114985897B CN 114985897 B CN114985897 B CN 114985897B CN 202210789542 A CN202210789542 A CN 202210789542A CN 114985897 B CN114985897 B CN 114985897B
- Authority
- CN
- China
- Prior art keywords
- welding
- blade
- wheel disc
- boss
- disc
- 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.)
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004904 shortening Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- 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
- B23P15/006—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine wheels
-
- 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
- B23P15/04—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from several pieces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to a leaf disc welding method, which comprises the following steps: processing a welding surface of a boss on one side of the blade into an arc-shaped surface; and welding the boss of the blade and the wheel disc in a swinging motion mode. According to the technical scheme provided by the invention, the welding surface of the boss of the blade is processed into the circular arc shape, and when the blade and the wheel disc are subjected to linear friction welding, the vibration mode of the blade is changed from the original linear vibration into circular arc swing, so that the vibration amplitude influence area can be led to the outer side of the wheel disc, the vibration amplitude area of the wheel disc is not influenced, the problem that the vibration amplitude area of the welding part in the original scheme is easy to generate defects is solved, the welding quality is improved, more allowance is not required, the size of the wheel disc before welding can be reduced, only the root of the blade is required to be processed after welding, and the processing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a method for high-quality welding of a blisk by adopting linear friction welding.
Background
The state before welding the wheel disc and the blade is shown in fig. 2, and mainly comprises: the method for manufacturing the integral blade disc by adopting linear friction welding in the prior art comprises the steps of directly welding the boss 2 of the blade onto the wheel disc 1, performing high-frequency reciprocating motion on the blade with a certain amplitude in the linear friction welding process, and generating heat by friction with a part to be welded under the action of pressure, so that welding is realized. The amplitude range is generally 2-4mm, when the blade disc welding method is adopted for welding, two influence areas are formed in the vibration direction, see fig. 3, defects are easily formed, the performance of the blade disc is affected, and aiming at the problem, the influence of the defects is generally avoided by adopting a mode of leaving more margins in the prior art, but the cost of the wheel disc material is increased.
Accordingly, the inventors have provided a method of blade disc welding that improves the quality of blade welding.
Disclosure of Invention
(1) Technical problem to be solved
The embodiment of the invention provides a blade disc welding method, which solves the technical problem that the blade disc linear friction welding amplitude area is easy to generate defects by improving the shape of a blade boss and the vibration mode of linear friction welding.
(2) Technical proposal
The embodiment of the invention provides a blade disc welding method, which comprises the following steps:
processing a welding surface of a boss on one side of the blade into an arc-shaped surface;
and welding the boss of the blade and the wheel disc in a swinging motion mode.
Further, the arc height of the arc-shaped surface of the welding surface of the boss is more than or equal to the welding shortening amount of the blade.
Further, the welding of the boss and the wheel disc of the blade by adopting the swinging motion mode specifically comprises the following steps:
and carrying out linear friction welding on the welding surface of the boss of the blade and the outer surface of the wheel disc in an arc swinging mode.
Further, the method further comprises:
and removing burrs of the clamping table on the blade and the welding part of the blade and the wheel disc.
(3) Advantageous effects
In summary, the invention processes the welding surface of the blade boss into an arc shape, and changes the vibration mode of the blade from the original linear vibration to the arc swing when the blade and the wheel disc are subjected to linear friction welding, thus leading the vibration amplitude influence area to the outside of the wheel disc, having no influence on the friction area of the wheel disc, improving the welding quality, and having no need of leaving more allowance, reducing the size of the wheel disc before welding, only needing to process the root of the blade after welding, and improving the processing efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
Fig. 1 is a flowchart of a method of soldering a blade disc according to an embodiment of the present invention.
FIG. 2 is a schematic illustration of the state of the disk and blade prior to welding.
FIG. 3 is a schematic diagram of a weld amplitude affected zone.
Fig. 4 is a schematic diagram of a welding process state of a blade disc welding method according to an embodiment of the present invention.
Fig. 5 is a schematic view of the blisk after welding.
FIG. 6 is a schematic view of the disk structure after removal of the clamping table and flash.
In the figure:
1-leaf discs; 2-a boss; 3-clamping the table; 4-leaf blade.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, substitutions and improvements in parts, components and connections without departing from the spirit of the invention.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Fig. 1 is a flowchart of a method for welding a blade disc according to an embodiment of the present invention, as shown in fig. 1, the method includes:
s1, processing a welding surface of a boss on one side of a blade into an arc-shaped surface;
preferably, in order to ensure that the welded size meets the requirement, the arc height of the arc-shaped surface of the welding surface of the boss is more than or equal to the welding shortening amount of the blade.
S2, welding the boss of the blade and the wheel disc in a swinging motion mode.
Specifically, as shown in fig. 4, a welding surface of the boss 2 of the blade and an outer surface of the wheel disc 1 are subjected to linear friction welding in an arc swinging mode, and a structural schematic diagram of the blade disc obtained after welding is shown in fig. 5.
Optionally, in this embodiment, the method further comprises:
and removing burrs of the clamping table on the blade and the welding part of the blade and the wheel disc.
A schematic diagram of the structure of the blade disc after the clamping table and the flash are removed is shown in fig. 6.
According to the invention, the welding surface of the boss of the blade is processed into the circular arc shape, and when the blade and the wheel disc are subjected to linear friction welding, the vibration mode of the blade is changed from the original linear vibration into circular arc swing, so that the vibration amplitude influence area can be led to the outer side of the wheel disc, the friction area of the wheel disc is not influenced, the problem that the vibration amplitude area of the welding part in the original scheme is easy to generate defects is solved, the welding quality is improved, excessive allowance is not required, the size of the wheel disc before welding can be reduced, the blade root is only required to be processed after welding, and the processing efficiency is improved.
It should be understood that, in the present specification, each embodiment is described in an incremental manner, and the same or similar parts between the embodiments are all referred to each other, and each embodiment is mainly described in a different point from other embodiments. The invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known method techniques is omitted here for the sake of brevity.
The foregoing is merely exemplary of the present application and is not limited thereto. Various modifications and alterations of this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (3)
1. A method of leaf disc welding comprising:
processing a welding surface of a boss on one side of the blade into an arc-shaped surface;
welding a boss of the blade and the wheel disc in a swinging motion mode, and leading an amplitude influence area to the outer side of the wheel disc without influencing a friction area of the wheel disc;
the welding method for the boss and the wheel disc of the blade by adopting the swinging motion mode specifically comprises the following steps: performing linear friction welding on the welding surface of the boss of the blade and the outer surface of the wheel disc in an arc swinging mode;
the contact part of the boss of the blade and the wheel disc is a fixed track, the blade swings back and forth on the fixed track, and the swing plane of the blade is a fixed plane;
the swing plane of the blade is perpendicular to the tangent plane of the wheel disc at the contact portion.
2. The method for welding a blade disc according to claim 1, wherein the arc height of the arc-shaped surface of the welding surface of the boss is greater than or equal to the blade welding shortening amount.
3. A method of leaf disc welding according to claim 2, further comprising:
and removing burrs of the clamping table on the blade and the welding part of the blade and the wheel disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210789542.6A CN114985897B (en) | 2022-07-06 | 2022-07-06 | Leaf disc welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210789542.6A CN114985897B (en) | 2022-07-06 | 2022-07-06 | Leaf disc welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114985897A CN114985897A (en) | 2022-09-02 |
| CN114985897B true CN114985897B (en) | 2024-01-26 |
Family
ID=83019202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210789542.6A Active CN114985897B (en) | 2022-07-06 | 2022-07-06 | Leaf disc welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114985897B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994008778A1 (en) * | 1992-10-09 | 1994-04-28 | Kln Ultraschall Gmbh | Device for bonding components by means of vibration welding |
| CN102941409A (en) * | 2012-10-19 | 2013-02-27 | 浙江吉尚汽车部件有限公司 | Swing welding method and equipment |
| RU2496987C1 (en) * | 2012-07-16 | 2013-10-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" | Vaned disc |
| CN104551380A (en) * | 2014-12-23 | 2015-04-29 | 中国航空工业集团公司北京航空制造工程研究所 | Integral blade disc and manufacturing method thereof |
| CN109128486A (en) * | 2018-08-22 | 2019-01-04 | 中国航空制造技术研究院 | A kind of swing friction welding method |
| CN109262132A (en) * | 2018-11-05 | 2019-01-25 | 中国航空制造技术研究院 | A kind of integral blade disk swings friction welding apparatus and method |
| CN114083109A (en) * | 2021-12-30 | 2022-02-25 | 天津大学 | Adjustable eccentricity linear vibration assembly and linear friction welding device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688512B2 (en) * | 2001-12-20 | 2004-02-10 | United Technologies Corporation | Apparatus and method for friction welding |
-
2022
- 2022-07-06 CN CN202210789542.6A patent/CN114985897B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994008778A1 (en) * | 1992-10-09 | 1994-04-28 | Kln Ultraschall Gmbh | Device for bonding components by means of vibration welding |
| RU2496987C1 (en) * | 2012-07-16 | 2013-10-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" | Vaned disc |
| CN102941409A (en) * | 2012-10-19 | 2013-02-27 | 浙江吉尚汽车部件有限公司 | Swing welding method and equipment |
| CN104551380A (en) * | 2014-12-23 | 2015-04-29 | 中国航空工业集团公司北京航空制造工程研究所 | Integral blade disc and manufacturing method thereof |
| CN109128486A (en) * | 2018-08-22 | 2019-01-04 | 中国航空制造技术研究院 | A kind of swing friction welding method |
| CN109262132A (en) * | 2018-11-05 | 2019-01-25 | 中国航空制造技术研究院 | A kind of integral blade disk swings friction welding apparatus and method |
| CN114083109A (en) * | 2021-12-30 | 2022-02-25 | 天津大学 | Adjustable eccentricity linear vibration assembly and linear friction welding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114985897A (en) | 2022-09-02 |
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