CN114654052A - Welding process for thin-wall metal plate welding large casing - Google Patents
Welding process for thin-wall metal plate welding large casing Download PDFInfo
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- CN114654052A CN114654052A CN202210480351.1A CN202210480351A CN114654052A CN 114654052 A CN114654052 A CN 114654052A CN 202210480351 A CN202210480351 A CN 202210480351A CN 114654052 A CN114654052 A CN 114654052A
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- 238000003466 welding Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 title abstract description 7
- 239000002184 metal Substances 0.000 title abstract description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052786 argon Inorganic materials 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000010891 electric arc Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/022—Welding by making use of electrode vibrations
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
- B23K9/0282—Seam welding; Backing means; Inserts for curved planar seams for welding tube sections
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The application provides a welding process for a thin-wall metal plate welding large casing, belongs to the technical field of aero-engine component manufacturing, and specifically comprises the following steps: welding mounting edges at the top end and the bottom end of the large casing barrel, wherein a circumferential weld is formed between the mounting edges and the barrel edge; welding the mounting seat on the side edge of the cylinder body of the large casing along the edge of the mounting seat; applying an acting force to the outer side of the cylinder to a deformation area of the cylinder around the mounting seat to restore the deformation area to the theoretical profile; and heating the circumferential weld corresponding to the deformation area of the cylinder by using an argon arc welding electric arc. Through the processing scheme, the welding deformation is corrected, the design and use requirements are met, and the manufacturing integrity of parts is ensured.
Description
Technical Field
The application relates to the field of manufacturing of aero-engine components, in particular to a welding process for a thin-wall metal plate welding large casing.
Background
The titanium alloy thin-wall plate welded large casing type part is a component on an aero-engine and is an important external casing part of the engine. The titanium alloy thin-wall sheet metal welding large case type part is formed by welding a titanium alloy forging mounting edge, a hot forming sheet metal part and a mounting seat. The titanium alloy has small thermal conductivity (poor thermal conductivity) and small linear expansion coefficient, and the mounting edge and the mounting seat have small deformation due to large thickness and fast thermal conductivity of the mounting edge and the mounting seat; the wall thickness of the sheet metal part is thin, so that the heat conduction is poor, the rigidity is poor, the deformation of the cylinder body is large, the cylinder body in the vicinity of the mounting seat is concave and deformed, the welding stress is large, and the strength and the service life of parts are reduced.
Disclosure of Invention
In view of this, the present application provides a welding process for a thin-wall plate welding large case, which solves the problems in the prior art, corrects the welding deformation, meets the design and use requirements, and ensures the integrity of the part manufacturing.
The application provides a welding process for a thin-wall plate welding large case, which adopts the following technical scheme:
a welding process for welding a large thin-wall plate casing comprises the following steps:
welding mounting edges at the top end edge and the bottom end edge of the large cartridge case barrel, wherein a circumferential weld is formed between the mounting edges and the barrel edge;
welding the mounting seat on the side edge of the large casing barrel along the edge of the mounting seat;
applying an acting force to the outer side of the cylinder to a deformation area of the cylinder around the mounting seat to restore the deformation area to the theoretical profile;
and heating the circumferential weld corresponding to the deformation area of the cylinder by using argon arc welding electric arc.
Optionally, the specific steps of heating the circumferential weld corresponding to the deformation region of the cylinder by using the argon arc welding arc include: and carrying out gas protection on the heating area of the circumferential weld.
Optionally, the step of applying an acting force to the outer side of the cylinder to the deformation region of the cylinder around the mounting seat to restore the deformation region to the theoretical profile includes: and machining the supporting plate, wherein the outer profile of the supporting plate is consistent with the theoretical inner profile of the cylinder, placing the supporting plate on the back of the deformation area, applying an acting force applied to the outer side of the cylinder on the supporting plate, and deforming and expanding the cylinder to the theoretical profile.
Optionally, the length of the support plate in the axial direction of the cylinder covers the circumferential weld at the top end and/or the bottom end of the cylinder, and a protective gas groove is processed in the position, facing the circumferential weld, on the outer side surface of the support plate in the extending direction of the circumferential weld.
Optionally, the specific steps of heating the circumferential weld corresponding to the deformation region of the cylinder by using the argon arc welding arc include:
introducing argon into the gas protection tank;
and oscillating the arc in the width direction of the circumferential weld in a reciprocating manner by using the argon arc welding.
Optionally, the argon arc welding arc is used for reciprocating swing in the width direction of the circumferential weld, and the swing amplitude does not exceed the width of the circumferential weld.
Optionally, the welding current of argon arc welding of the heating circumferential weld is 30A +/-5A, and the welding voltage is 10V-12V.
Optionally, the moving speed of the arc of the argon arc welding for heating the circumferential weld along the extending direction of the circumferential weld is 100mm/min-140 mm/min.
To sum up, the application comprises the following beneficial technical effects:
this application props the barrel 1 of deformation region 7 and rises to theoretical position, and deformation region 7 produces the internal stress, and this internal stress is unanimous with welding stress, heats on the girth joint 4 of deformation region 7, can produce with the not equidirectional stress of welding process, through the redistribution of two orientation internal stresses, the welding deformation that the internal stress leads to reduces, satisfies the operation requirement
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a welded structure of a casing barrel, a mounting edge and a mounting seat according to an embodiment of the present disclosure;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a structural diagram illustrating a welding deformation of a casing barrel, a mounting edge and a mounting seat according to an embodiment of the present disclosure;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4;
FIG. 6 is a schematic structural diagram of a calibration area according to an embodiment of the present application;
fig. 7 is a cross-sectional view taken along the direction D-D of fig. 6.
Description of reference numerals: 1. a barrel; 2. installing edges; 3. a mounting seat; 4. a circumferential weld; 5. a support plate; 6. a protective gas tank; 7. a deformation region; 8. heating the area.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
The embodiment of the application provides a welding process for a thin-wall plate welding large case.
A welding process for welding a large thin-wall plate casing comprises the following steps:
as shown in fig. 1-3, mounting edges 2 are welded at the top end and the bottom end of a large casing barrel 1, and an annular welding seam 4 is formed between the mounting edges 2 and the edge of the barrel 1.
The mounting seat 3 is welded on the side edge of the large casing barrel along the edge of the mounting seat 3.
The deformation of the welded cylinder body 1 is shown in fig. 4 and 5, and the welding deformation of the mounting edge 2 and the mounting seat 3 is small because the mounting edge 2 and the mounting seat 3 are thick and have good rigidity and the heat conduction is fast in the welding process; the sheet metal part has thin wall thickness and poor rigidity, and the heat conduction in the welding process is poor, so that the barrel body 1 deforms greatly. The mounting edge 2 and the cylinder body 1 are closed circular welding seams 4, and the welding deformation of the cylinder body 1 is small. The size of the mounting seat 3 is smaller than that of the mounting edge 2 and the barrel 1, the mounting seat 3 and the barrel 1 are welded in a local area, the mounting seat 3 is good in rigidity and free of deformation, the rigidity of the barrel 1 is poor, the barrel 1 deforms greatly, parts deform as shown in the following figure, and the barrel 1 deforms inwards. Because the welding volume of mount pad 3 on the axis is great, welding in circumference is less, and barrel 1 internal stress distributes unevenly and causes barrel 1 unbalance, appears the indent deformation.
As shown in fig. 6 and 7, a force is applied to the deformed region 7 of the cylindrical body 1 around the mount 3 toward the outside of the cylindrical body 1, so that the deformed region 7 is restored to the theoretical profile.
And heating the circumferential welding seam 4 corresponding to the deformation area 7 of the cylinder body 1 by using argon arc welding electric arc.
The step of applying an acting force to the outer side of the cylinder 1 on the deformation area 7 of the cylinder 1 around the mounting seat 3 to restore the deformation area 7 to the theoretical profile comprises the following steps: and (3) machining the supporting plate 5, wherein the outer profile of the supporting plate 5 is consistent with the theoretical inner profile of the cylinder 1, placing the supporting plate 5 on the back of the deformation area 7, applying an acting force applied to the outer side of the cylinder 1 on the supporting plate 5, and deforming and expanding the cylinder 1 to the theoretical profile. The length of the supporting plate 5 along the axial direction of the cylinder body 1 covers the circumferential weld 4 at the top end and/or the bottom end of the cylinder body 1, and a protective gas groove 6 is processed along the extending direction of the circumferential weld 4 at the position, which is just opposite to the circumferential weld 4, on the outer side surface of the supporting plate 5.
The method comprises the following specific steps of heating the circumferential weld 4 corresponding to the deformation area 7 of the cylinder body 1 by using argon arc welding electric arc: introducing argon gas into the gas protection groove, and carrying out gas protection on the heating area 8 of the circumferential weld 4; and the argon arc welding arc is used for reciprocating swing in the width direction of the circumferential weld 4, the swing amplitude does not exceed the width of the circumferential weld 4, the welding current of the argon arc welding for heating the circumferential weld 4 is 30A +/-5A, and the welding voltage is 10V-12V.
This application expands barrel 1 of deformation zone 7 to the theoretical position, and deformation zone 7 produces the internal stress, and this internal stress is unanimous with welding stress, heats on deformation zone 7's circumferential weld 4, can produce with the stress of welding process equidirectional, through the redistribution of two orientation internal stresses, the welding deformation that the internal stress leads to reduces, satisfies the operation requirement.
The method is convenient to operate, labor-saving, time-saving and high in reliability; the problem of large deformation of the barrel 1 after welding the barrel 1 of the large-sized titanium alloy thin-wall sheet welded box type part and the mounting seat 3 is solved, the girth weld joint 4 is heated in the direction perpendicular to the direction in which the welding amount of the mounting seat 3 is large, stress generated by heating and stress generated by welding are redistributed, the effect of eliminating welding stress is achieved, and the part deformation is corrected to be qualified. The process reduces the rejection rate of parts and improves the processing qualification rate of the parts, is successfully applied to the processing of the parts, greatly reduces the production cost, improves the economic and national defense benefits of companies, and has great practical value.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A welding process for welding a large thin-wall plate casing is characterized by comprising the following steps:
welding mounting edges at the top end edge and the bottom end edge of the large cartridge case barrel, wherein a circumferential weld is formed between the mounting edges and the barrel edge;
welding the mounting seat on the side edge of the large casing barrel along the edge of the mounting seat;
applying an acting force to the outer side of the cylinder to a deformation area of the cylinder around the mounting seat to restore the deformation area to the theoretical profile;
and heating the circumferential weld corresponding to the deformation area of the cylinder by using argon arc welding electric arc.
2. The welding process of the thin-wall plate welding large case according to claim 1, wherein the specific steps of heating the circumferential weld corresponding to the deformation region of the cylinder by using the argon arc welding arc comprise: and carrying out gas protection on the heating area of the circumferential weld.
3. The welding process of the thin-wall plate welding large case according to claim 2, wherein the step of applying a force to the outside of the cylinder body to the deformed region of the cylinder body around the mounting seat to restore the deformed region to the theoretical profile comprises the following steps: and machining the supporting plate, wherein the outer profile of the supporting plate is consistent with the theoretical inner profile of the cylinder, placing the supporting plate on the back of the deformation area, applying an acting force applied to the outer side of the cylinder on the supporting plate, and deforming and expanding the cylinder to the theoretical profile.
4. The process for welding the thin-wall plate welding large casing according to claim 3, wherein the length of the support plate along the axial direction of the cylinder body covers the circumferential weld at the top end and/or the bottom end of the cylinder body, and a shielding gas groove is formed on the outer side surface of the support plate at a position opposite to the circumferential weld along the extending direction of the circumferential weld.
5. The welding process of the thin-wall plate welding large case according to claim 4, wherein the specific steps of heating the circumferential weld corresponding to the deformation region of the cylinder by using the argon arc welding arc comprise:
introducing argon into the gas protection tank;
and using an argon arc welding electric arc to swing back and forth in the width direction of the circumferential weld.
6. The welding process of claim 5, wherein the argon arc welding arc is used to oscillate back and forth in the width direction of the circumferential weld, and the oscillation amplitude does not exceed the width of the circumferential weld.
7. The thin-wall plate welding large case welding process according to claim 5, wherein the welding current of the argon arc welding for heating the circumferential weld is 30A +/-5A, and the welding voltage is 10V-12V.
8. The thin-walled sheet-welding large-sized casing welding process as claimed in claim 7, wherein the moving speed of the arc of the argon arc welding for heating the circumferential weld in the extending direction of the circumferential weld is 100mm/min to 140 mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210480351.1A CN114654052A (en) | 2022-05-05 | 2022-05-05 | Welding process for thin-wall metal plate welding large casing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210480351.1A CN114654052A (en) | 2022-05-05 | 2022-05-05 | Welding process for thin-wall metal plate welding large casing |
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| CN114654052A true CN114654052A (en) | 2022-06-24 |
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| CN202210480351.1A Pending CN114654052A (en) | 2022-05-05 | 2022-05-05 | Welding process for thin-wall metal plate welding large casing |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319942A (en) * | 2011-09-05 | 2012-01-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Titanium alloy welded case installation edge pre-deformation welding and micro forming method |
| CN104439926A (en) * | 2014-10-28 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Rear casing assembly manufacturing method capable of solving problems of deformation and cracking |
| CN107649709A (en) * | 2017-08-31 | 2018-02-02 | 中国航发航空科技股份有限公司 | For containing the device of the split binding face processing of casing outside aero-engine |
| KR20190012871A (en) * | 2017-07-28 | 2019-02-11 | 대우조선해양 주식회사 | Welding Jig For Cylindrical Structure |
| CN109396724A (en) * | 2018-12-17 | 2019-03-01 | 中国航发动力股份有限公司 | A kind of engine crankcase processing support device |
| CN109530893A (en) * | 2019-01-09 | 2019-03-29 | 苏州长风航空电子有限公司 | A kind of method of novel argon arc welding hot sizing |
| CN109877613A (en) * | 2019-02-01 | 2019-06-14 | 吉林化工学院 | A kind of deformation controller in hole for processing aero-engine casing end face lace structure |
| CN110732795A (en) * | 2019-11-19 | 2020-01-31 | 中国航发贵州黎阳航空动力有限公司 | aircraft engine exhaust casing welding method |
| CN112139749A (en) * | 2020-09-23 | 2020-12-29 | 中国航发贵州黎阳航空动力有限公司 | Welding tool and welding method for annular cylinder mounting seat |
| CN112247316A (en) * | 2020-09-07 | 2021-01-22 | 江阴市富仁高科股份有限公司 | Welding process of pressure container |
| CN113333934A (en) * | 2021-06-30 | 2021-09-03 | 中国航发动力股份有限公司 | Assembly welding method for multi-layer thin-wall welding case with large height-diameter ratio |
-
2022
- 2022-05-05 CN CN202210480351.1A patent/CN114654052A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319942A (en) * | 2011-09-05 | 2012-01-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Titanium alloy welded case installation edge pre-deformation welding and micro forming method |
| CN104439926A (en) * | 2014-10-28 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Rear casing assembly manufacturing method capable of solving problems of deformation and cracking |
| KR20190012871A (en) * | 2017-07-28 | 2019-02-11 | 대우조선해양 주식회사 | Welding Jig For Cylindrical Structure |
| CN107649709A (en) * | 2017-08-31 | 2018-02-02 | 中国航发航空科技股份有限公司 | For containing the device of the split binding face processing of casing outside aero-engine |
| CN109396724A (en) * | 2018-12-17 | 2019-03-01 | 中国航发动力股份有限公司 | A kind of engine crankcase processing support device |
| CN109530893A (en) * | 2019-01-09 | 2019-03-29 | 苏州长风航空电子有限公司 | A kind of method of novel argon arc welding hot sizing |
| CN109877613A (en) * | 2019-02-01 | 2019-06-14 | 吉林化工学院 | A kind of deformation controller in hole for processing aero-engine casing end face lace structure |
| CN110732795A (en) * | 2019-11-19 | 2020-01-31 | 中国航发贵州黎阳航空动力有限公司 | aircraft engine exhaust casing welding method |
| CN112247316A (en) * | 2020-09-07 | 2021-01-22 | 江阴市富仁高科股份有限公司 | Welding process of pressure container |
| CN112139749A (en) * | 2020-09-23 | 2020-12-29 | 中国航发贵州黎阳航空动力有限公司 | Welding tool and welding method for annular cylinder mounting seat |
| CN113333934A (en) * | 2021-06-30 | 2021-09-03 | 中国航发动力股份有限公司 | Assembly welding method for multi-layer thin-wall welding case with large height-diameter ratio |
Non-Patent Citations (1)
| Title |
|---|
| 曾长寿，孟健: "大型机匣结构的焊接", 航空工程与维修, no. 06, pages 13 - 15 * |
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