A method for controlling deformation of a radial welding of a support plate on a circumferential member and application thereof

Abstract

The present application relates to the technical field of welding deformation control, in particular to a deformation control method for welding a support plate along a radial direction on a circumferential component and an application, through setting up a groove, reducing the filler volume, thereby reducing the heat input during welding, effectively reducing the thermal deformation caused by excessive heat input during welding; cooperating with the centering block and the rigid connecting rod for tool limiting, which can effectively ensure the possible support plate self-torsion edge deformation and the deformation of the support plate along the axial direction and the circumferential direction caused by the deformation, thereby reducing the deformation of the support plate welding, meeting the use requirements.

Description

Technical Field

[0001] This invention relates to the field of welding deformation control technology, specifically to a method and application for controlling the deformation of a radially welded support plate on a circumferential component. Background Technology

[0002] Modern power equipment, especially aircraft engines, contains numerous components resembling ship rudders. Due to limitations in current manufacturing technology, these components can only be processed by welding evenly distributed circumferentially protruding bosses to support plates. A schematic diagram of the resulting component structure is shown below. Figure 1 and Figure 2 As shown.

[0003] The protruding boss and the support plate are connected by butt welding. The length of the support plate is greater than or equal to half the radius of the ring. At the same time, the length direction of the cross-section of the support plate forms a certain angle with the axis of the ring.

[0004] The structural precision of aero engines determines the accuracy of the design and manufacturing of structural components. According to existing technical requirements, the axial runout and axial deviation of the end plate of the structural component after processing should not exceed 0.1mm.

[0005] Due to the structural characteristics of the component, direct, fixed-point welding with a heat source is not feasible. Welding must be performed using flexible and operable heat source methods, including manual argon arc welding. However, compared to high-energy beam welding such as laser welding and vacuum electron beam welding, this type of welding has characteristics such as lower energy density, weaker penetration, and larger heat input, inevitably leading to significant welding deformation. Given the dimensional requirements for the deformation at the support plate ends in the component design, controlling the amount of welding deformation is extremely challenging. Summary of the Invention

[0006] The purpose of this invention is to provide a method and application for controlling the deformation of radially welded support plates on circumferential components, thereby solving the technical problem of large welding deformation of support plates on circumferential components.

[0007] The solution of the present invention to the above-mentioned technical problems is as follows: A method for controlling the deformation of a radially welded support plate on a circumferential component includes the following steps: A bevel is made at the joint between the support plate and the welding boss; Using centering blocks, extend the centering blocks along the inner wall of the circumferential component into the interior of the welding boss and the support plate; The centering block is used to position and weld the support plate and welding boss at the bevel position; Using rigid connecting rods, the rigid connecting rods are welded between two adjacent support plates; Filler wire welding is performed on the support plate and welding boss at the bevel position.

[0008] Further defined, the bevel is opened in the circumferential direction at the point where the support plate and the welding boss meet.

[0009] Further specifying, before using the centering block, a clamping fixture is used to clamp the circumferential component and the support plate.

[0010] Further specifying, the positioning and welding of the support plate and welding boss by the centering block at the bevel position specifically involves: For the support plate and welding boss that extend into the centering block, perform distributed multi-point positioning welding along the corresponding bevel.

[0011] Further specifying, the welding of the rigid connecting rod between two adjacent support plates specifically refers to: Weld one end of the rigid connecting rod to the rear end of the support plate; Weld the other end of the rigid connecting rod to the front end of the adjacent support plate; Welding of rigid connecting rods between all support plates is completed sequentially along the circumferential direction of the circumferential component.

[0012] Furthermore, the rigid connecting rod is made of the same material as the support plate, and the rigid connecting rod is located at the upper end of the support plate.

[0013] Furthermore, the deformation control method for the radially welded support plate on the circumferential component also includes: After completing the welding of all rigid connecting rods, loosen the clamping fixture and check the position of the end of the support plate on the circumferential component. If the check fails, open the weld point between the corresponding support plate and the rigid connecting rod, as well as the weld point positioned at the corresponding bevel. Then, with the help of the clamping fixture and the centering block, re-weld the support plate to the welding boss and the rigid connecting rod. If the check passes, prepare for filler wire welding.

[0014] Further specifying, the step of performing filler wire welding on the support plate and welding boss at the bevel position specifically refers to: Use clamping fixtures to clamp circumferential components; Small symmetrical filler wire welding: about any axis of symmetry of the support plate cross section, at the bevel position about the axis of symmetry of the support plate, symmetrical filler wire welding is performed between the support plate and the welding boss to complete the radial welding of a single support plate; Large symmetric filler wire welding: about any axis of symmetry of the circumferential component, two symmetrical support plates are successively welded radially, and all symmetrical support plates are successively welded radially along any circumferential direction of the circumferential component.

[0015] Furthermore, the deformation control method for the radially welded support plate on the circumferential component also includes the following steps: After all symmetrical support plates have been radially welded, cool to room temperature; Release the clamping fixture for non-destructive testing. If it passes the test, perform post-weld vacuum stress relief and remove the rigid connecting rod. If it fails the test, discard the product.

[0016] The deformation control method for radially welded support plates on circumferential components, as described above, is applied to reducing the welding deformation of radial support plates.

[0017] The beneficial effects of this invention are as follows: 1. This invention reduces the material volume by creating a bevel, thereby reducing the heat input during welding and effectively reducing deformation caused by excessive heat input during welding. With the help of a centering block and a rigid connecting rod for tooling limitation, it can effectively prevent the support plate from undergoing torsional deformation and the resulting deformation along the axial and circumferential directions of the ring during welding, thereby reducing the amount of deformation during support plate welding and meeting the usage requirements.

[0018] 2. The present invention provides process limitation. Large symmetrical filler wire welding can effectively avoid the tearing effect of the overall deformation caused by the earlier welding position on the subsequent welding position; small symmetrical filler wire welding can avoid the continuous accumulation of deformation caused by the first welded part in a single closed weld, which will cause the later welded part to misalign. Attached Figure Description

[0019] Figure 1 This is a front view of a ship's rudder component; Figure 2 This is a schematic diagram of the cross-section of the upper support plate of the circular component; Figure 3 This is a structural diagram showing the positions of the support plate and welding boss of the present invention; Figure 4 for Figure 3 Enlarged diagram of part A in the middle; Figure 5 This is a schematic diagram showing the connection between the rigid connecting rod and two adjacent support plates of the present invention; In the diagram, 10 is the support plate; 20 is the welding boss; 30 is the bevel; 40 is the centering block; 50 is the circumferential component; and 60 is the rigid connecting rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Example 1 This invention provides a method for controlling the deformation of radially welded support plates on a circumferential component, comprising the following steps: A bevel 30 is made at the joint position where the support plate 10 and the welding boss 20 meet; Using centering block 40, extend centering block 40 along the inner wall of circumferential member 50 into the interior of welding boss 20 and support plate 10; The centering block 40 is used to position and weld the support plate 10 and the welding boss 20 at the bevel 30 position; Using a rigid link 60, the rigid link 60 is welded between two adjacent support plates 10; Filler wire welding is performed on the support plate 10 and the welding boss 20 at the bevel position 30.

[0025] For details, please refer to Figure 2 The welding boss 20 is a closed structure with a certain thickness. A cavity is provided inside the support plate 10 that communicates with the interior of the welding boss 20. (Refer to...) Figure 3 The circumferential component 50 has a shaped hole that communicates with the inner cavity of the welding boss 20.

[0026] refer to Figure 3 and Figure 4Before welding, bevels are first made on the periphery of the top port of the welding boss 20 and the periphery of the bottom port of the support plate 10, so that the welding position of the support plate 10 and the welding boss 20 extends inward to form a conical surface, avoiding large heat input for full penetration welding. This reduces the deformation of the support plate 10 during welding by reducing the heat input, and at the same time improves the welding efficiency. During welding, the filler wire welding method is used to effectively reduce the heat input and reduce the thermal deformation of the support plate 10.

[0027] To further explain, in order to ensure the coaxiality of the support plate 10 and the welding boss 20, guarantee welding accuracy, and avoid misalignment during welding, it is preferable to use a centering block 40 to limit the support plate 10 and the welding boss 20, effectively reducing the deformation of the support plate 10. The top of the centering block 40 passes through the shaped hole and the interior of the welding boss 20 and extends into the interior of the support plate 10, while the bottom of the centering block 40 mates with the shaped hole to ensure stable and reliable welding.

[0028] Before the centering block 40 extends from the inside of the welding boss 20 into the inside of the support plate 10, in order to improve welding efficiency and welding reliability, it is necessary to use a clamping fixture to limit and clamp the circumferential component 50 and the support plate 10 to ensure welding stability.

[0029] To further explain, the positioning welding of the support plate 10 and the welding boss 20 at the bevel 30 position with the centering block 40 is specifically as follows: The support plate 10 extending into the centering block 40 and the welding boss 20 are subjected to dispersed multi-point positioning welding along the corresponding bevel 30.

[0030] Taking eleven support plates 10 as an example, when using tooling to clamp, first clamp the circumferential component 50, then insert the centering block 40 into any support plate 10 through the corresponding hole, and then clamp the current support plate 10.

[0031] Subsequently, multi-point positioning welding is performed along the bevel 30 between the support plate 10 and the welding boss 20. The welding position of the support plate 10 and the welding boss 20 is initially positioned to complete the positioning welding of the current support plate 10.

[0032] Then, the centering block 40 is pulled out and inserted into the next support plate 10. After being clamped and stabilized, the support plate 10 is positioned and welded. This process is repeated until the positioning and welding of all support plates 10 is completed.

[0033] To further explain, in order to avoid deformation during welding of the support plate 10, a rigid connecting rod 60 is welded between two adjacent support plates 10 in the circumferential direction of the circumferential component 50, which effectively ensures the balanced distribution and elimination of tensile and compressive stress at the ends of each support plate 10 along the circumferential direction.

[0034] Preferably, the rigid connecting rod 60 should be made of the same material grade and condition as the support plate 10.

[0035] Among them, reference Figure 5 Specifically, the rigid connecting rod 60 is welded between two adjacent support plates 10 as follows: Weld one end of the rigid connecting rod 60 to the rear end of the support plate 10; The other end of the rigid connecting rod 60 is welded to the front end of the adjacent support plate 10; Welding of the rigid connecting rods 60 between all the support plates 10 is completed sequentially along the circumferential direction of the circumferential component 50.

[0036] The rigid connecting rod 60 is used to cross-connect and position the adjacent support plate 10. The rigid connecting rod 60 is welded to the upper end of the support plate 10. The welding position between the rigid connecting rod 60 and the outer end of the support plate 10 is the positioning weld point. By adding the rigid connecting rod 60, the welding torsional deformation of the support plate 10 caused by welding thermal stress and the deformation of the support plate 10 along the axial and circumferential directions of the ring caused by the torsion of the support plate 10 can be effectively limited.

[0037] Furthermore, the deformation control method for radially welded support plates on circumferential components also includes: After completing the welding of all rigid connecting rods 60, loosen the clamping fixture and check the position of the end of the support plate 10 on the circumferential component 50. If the check fails, remove the corresponding weld point between the support plate 10 and the rigid connecting rod 60, and then re-weld the support plate 10 and the rigid connecting rod 60 with the clamping fixture. If the check passes, prepare for filler wire welding.

[0038] To ensure the accurate and reliable positioning of the support plate 10, the end position of the support plate is determined, including but not limited to coordinate measuring machine (CMM) dimensional inspection. For support plates 10 that do not meet the dimensional requirements, the positioning welds are opened and the positioning welds are removed. The centering block 40 is then re-fitted and the bevel 30 positioning weld and the support plate 10 is welded to the rigid connecting rod 60 in the manner described above. Subsequently, the end dimensions of the support plate are inspected until they meet the requirements. At this point, filler wire welding can be prepared.

[0039] To further explain, the filler wire welding of the support plate 10 and the welding boss 20 at the bevel 30 position is specifically as follows: Use a clamping fixture to clamp the circumferential component 50; Small symmetrical filler wire welding: about any axis of symmetry of the support plate 10 cross section, at the bevel 30 position, about the axis of symmetry of the support plate, symmetrical filler wire welding is performed between the support plate 10 and the welding boss 20 to complete the radial welding of a single support plate. Large symmetric filler wire welding: about any component axis of symmetry of the circumferential component 50, two symmetrical support plates are radially welded in sequence, and all symmetrical support plates are radially welded in sequence along any circumferential direction of the circumferential component 50.

[0040] Specifically, the small symmetrical filler wire welding is for the welding process between a single support plate 10 and the corresponding welding boss 20. When welding between the support plate 10 and the welding boss 20, welding can be performed sequentially about the axis of symmetry of the support plate to avoid the continuous accumulation of deformation caused by the first welded part in a single closed weld, which would cause misalignment of the later welded parts.

[0041] Large symmetric filler wire welding is a welding process for all support plates 10 and corresponding welding bosses 20 on the circumferential component 50. After the first support plate radial welding is completed, when welding the second support plate radially, the support plate 10 that is symmetrical about the component's axis of symmetry is selected for welding. When welding the third support plate radially, the third support plate 10 is welded in a clockwise or counterclockwise order from the position of the first support plate 10. This process is repeated until all support plates 10 are welded. This can effectively avoid the tearing effect of the overall deformation of the circumferential component caused by the earlier welding bosses on the position of the subsequently welded bosses 10, and avoid the deformation of the support plates 10 during welding.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling the deformation of radially welded support plates on a circumferential component, characterized in that, Includes the following steps: A bevel (30) is made at the joint position between the support plate (10) and the welding boss (20); Using a centering block (40), the centering block (40) is inserted into the interior of the welding boss (20) and the support plate (10) along the inner wall of the circumferential member (50); The support plate (10) and the welding boss (20) are positioned and welded at the bevel (30) with the centering block (40); Using a rigid link (60), the rigid link (60) is welded between two adjacent support plates (10); Filler wire welding is performed on the support plate (10) and the welding boss (20) at the bevel (30) position; The specific steps of welding the rigid connecting rod (60) between two adjacent support plates (10) are as follows: Weld one end of the rigid connecting rod (60) to the rear end of the support plate (10); Weld the other end of the rigid connecting rod (60) to the front end of the adjacent support plate (10); Welding of rigid connecting rods (60) between all support plates (10) is completed sequentially along the circumferential direction of the circumferential component (50); The rigid link (60) is made of the same material as the support plate (10), and the rigid link (60) is located at the upper end of the support plate (10).

2. The deformation control method for radially welded support plates on a circumferential component according to claim 1, characterized in that, The bevel (30) is opened in the circumferential direction around the position where the support plate (10) and the welding boss (20) meet.

3. The deformation control method for radially welded support plates on a circumferential component according to claim 1, characterized in that, Before using the centering block (40), a clamping fixture is used to clamp the circumferential component (50) and the support plate (10).

4. The deformation control method for radially welded support plates on a circumferential component according to claim 3, characterized in that, The positioning and welding of the support plate (10) and the welding boss (20) by the matching centering block (40) at the bevel (30) position is specifically as follows: The support plate (10) extending into the centering block (40) and the welding boss (20) are subjected to multi-point positioning welding along the corresponding bevel (30).

5. The deformation control method for radially welded support plates on a circumferential component according to claim 4, characterized in that, The deformation control method for the radially welded support plate on the circumferential component also includes: After completing the welding of all rigid connecting rods (60), loosen the clamping fixture and check the position of the end of the support plate (10) on the circumferential component (50). If the inspection fails, open the weld point of the corresponding support plate (10) and rigid connecting rod (60) and the weld point located at the corresponding bevel (30). With the help of the clamping fixture and centering block (40), re-weld the support plate (10) to the welding boss (20) and the rigid connecting rod (60). If the inspection passes, prepare for filler wire welding.

6. The deformation control method for radially welded support plates on a circumferential component according to claim 5, characterized in that, The specific steps of performing filler wire welding on the support plate (10) and welding boss (20) at the bevel (30) position are as follows: The circumferential component (50) is clamped using a clamping fixture; Small symmetrical filler wire welding: about any axis of symmetry of the support plate (10) cross section, at the bevel (30) position, about the axis of symmetry of the support plate, symmetrical filler wire welding is performed between the support plate (10) and the welding boss (20) to complete the radial welding of a single support plate; Large symmetric filler wire welding: about any component axis of symmetry of the circumferential component (50), two symmetrical support plates are welded radially in sequence, and all symmetrical support plates are welded radially in sequence along any circumferential direction of the circumferential component (50).

7. The deformation control method for radially welded support plates on a circumferential component according to claim 6, characterized in that, The deformation control method for the radially welded support plate on the circumferential component further includes the following steps: After all symmetrical support plates have been radially welded, cool to room temperature; Release the clamping fixture for non-destructive testing. If it passes the test, perform post-weld vacuum stress relief and remove the rigid connecting rod (60). If it fails the test, discard the product.

8. The deformation control method for radially welded support plates on a circumferential member as described in any one of claims 1 to 7 is applied to reducing the welding deformation of radial support plates.

Images