Thin-wall part machining method and device, computer storage medium and terminal

Abstract

According to the thin-wall part machining method and device, the computer storage medium and the terminal, for a first change curve of strain energy and machining deformation in the layer-by-layer cutting process, it is ensured that the machining deformation newly added in the cutting process is smaller than the overall machining deformation by one grade with the strain energy reduced by 0.9 or above relative to the initial value as the criterion, and the machining deformation is reduced by one grade; the interference of newly increased deformation of finish machining on the machining precision is effectively restrained; the second change curve of the machining deformation of the part and the cutting thickness value of the part and the process allowance change curve are only fitted within the initial boundary range, and the curve fitting strength is reduced; the finish machining allowance when the second change curve and the process allowance change curve intersect is determined as the optimal finish machining allowance, and the requirements that the newly-added machining deformation corresponding to the finish machining allowance after cutting of each layer is minimum and the finish machining allowance needs to be larger than the deformation amount of previous machining are met; and data support is provided for improving the distribution quality of the finishing allowance.

Description

TECHNICAL FIELD

[0001] The present application relates to intelligent manufacturing technology, in particular to a thin-walled part machining method, device, computer storage medium and terminal. BACKGROUND

[0002] Thin-walled parts are often used as key load-bearing structures of aircraft, but the material removal rate is high during machining, and the parts are prone to severe machining deformation under the coupling effect of initial residual stress redistribution and weak rigidity of the blank; by retaining the workpiece deformation generated after the previous process, a large range of elimination is performed with the subsequent process, therefore, reasonable allocation of the finishing process allowance is the key to improving the machining precision of the finished part. Related research shows that the milling force in the finishing stage is proportional to the finishing allowance, and the larger the finishing allowance, the greater the newly introduced deformation in this stage, which needs to be reduced as much as possible. However, if the finishing allowance is too low, on the one hand, it will prolong the period of workpiece weak rigidity, and increase the risk of workpiece machining vibration, on the other hand, it cannot guarantee that the workpiece deformation after rough machining is fully removed; therefore, in the anti-deformation machining process design of large thin-walled parts, the finishing allowance needs to meet the following conditions: 1) the strain energy of the part under the finishing allowance is released sufficiently to reduce the newly introduced deformation in the finishing stage as much as possible; 2) the finishing allowance can cover the workpiece deformation generated in the previous process to avoid the situation that the part is out of tolerance in the intermediate stage of machining.

[0003] In related technologies, the finishing allowance is mainly determined manually, which is generally taken as a large value to prevent it from being too small to adjust; the problems existing in the anti-deformation machining of large thin-walled parts cannot be avoided; how to improve the allocation quality of the finishing allowance, improve the deformation control effect of the machining of large thin-walled parts, and improve the machining precision of thin-walled parts has become a problem to be solved. SUMMARY

[0004] The embodiment of the present application provides a thin-walled part machining method, which comprises the following steps: Taking the decrease of the strain energy by more than 0.9 with respect to the initial value as the criterion, a preliminary boundary range of the finishing allowance allocation is determined according to a first change curve, wherein the first change curve is determined based on the strain energy and the machining deformation of the part according to the preset cutting thickness in the pre-determined simulation analysis result, and the simulation analysis result is determined based on the machining deformation simulation model of the pre-determined target thin-walled part; According to the simulation analysis result, a second change curve of the machining deformation of the part in the preliminary boundary range determined and a process allowance change curve are fitted and determined; The finishing allowance when the second change curve and the process allowance change curve intersect is determined as the best finishing allowance of the target thin-walled part.

[0005] In another aspect, the embodiments of the present application also provide a computer storage medium, which stores a computer program. The computer program is executed by a processor to implement the method for processing a thin-walled part.

[0006] In another aspect, the embodiments of the present application also provide a terminal, which comprises a memory and a processor. The memory stores a computer program. The processor is configured to execute the computer program in the memory. The computer program is executed by the processor to implement the method for processing a thin-walled part.

[0007] In another aspect, the embodiments of the present application also provide a device for processing a thin-walled part, which comprises a boundary determining unit, a curve fitting unit and a margin determining unit. The boundary determining unit is configured to determine a preliminary boundary range for distributing a finishing margin according to a first variation curve, with a criterion that a strain energy is reduced by more than 0.9 relative to an initial value. The first variation curve is determined based on a strain energy and a machining deformation of the part according to a preset cutting thickness layer by layer, and the simulation analysis result is determined based on a machining deformation simulation model of the target thin-walled part. The curve fitting unit is configured to fit a second variation curve of the machining deformation of the part and a process margin variation curve within the determined preliminary boundary range according to the simulation analysis result. The margin determining unit is configured to determine a finishing margin when the second variation curve and the process margin variation curve intersect as the optimal finishing margin of the target thin-walled part.

[0008] In the embodiments of the present application, the first variation curve of the elastic strain energy and the machining deformation in the coupled layer-by-layer cutting process is determined by setting a criterion that the strain energy is reduced by more than 0.9 relative to the initial value, so that the remaining strain energy is one level smaller than the initial strain energy, ensuring that the newly added machining deformation in the step-by-step cutting process is one level smaller than the overall machining deformation, effectively restraining the interference of the newly added deformation in the finishing process on the machining precision. The second variation curve of the machining deformation of the part and the process margin variation curve within the determined preliminary boundary range are fitted, reducing the fitting strength of the second variation curve and the process margin variation curve. The finishing margin when the second variation curve and the process margin variation curve intersect is determined as the optimal finishing margin, meeting the requirement that the newly added machining deformation corresponding to the finishing margin after each layer of cutting is the smallest, and the finishing margin needs to be larger than the deformation of the previous machining. This provides data support for improving the distribution quality of the finishing margin and the deformation control effect of the machining of large thin-walled parts.

[0009] Other features and advantages of the present application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The advantages of the present application will be realized and attained by the structure particularly pointed out in the description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0010] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. The drawings are included are intended to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. The drawings are intended to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application.

[0011] Figure 1 Flow chart of the method for processing the thin-walled part according to the embodiment of the present disclosure; Figure 2 Structure block diagram of the device for processing the thin-walled part according to the embodiment of the present disclosure; Figure 3 Initial stress balance diagram in the X-axis direction according to the embodiment of the present disclosure; Figure 4 Initial stress balance diagram in the Y-axis direction according to the embodiment of the present disclosure; Figure 5 Initial stress balance diagram in the Z-axis direction according to the embodiment of the present disclosure; Figure 6 Schematic diagram of the simulation analysis result according to the embodiment of the present disclosure; Figure 7 Schematic diagram of the first change curve according to the embodiment of the present disclosure; Figure 8 Schematic diagram of the second change curve and the process allowance change curve according to the embodiment of the present disclosure; Figure 9 Processing deformation curve diagram before clamping adjustment according to the embodiment of the present disclosure; Figure 10 Processing deformation curve diagram after clamping adjustment according to the embodiment of the present disclosure. DETAILED DESCRIPTION

[0012] The present application describes a plurality of embodiments, but the description is exemplary rather than limiting, and it is obvious to those skilled in the art that there can be more embodiments and implementation schemes within the scope of the embodiments described in the present application. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment can be used in combination with any other feature or element of any other embodiment, or can replace any other feature or element of any other embodiment.

[0013] This application includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this application can also be combined with any conventional features or elements to form unique inventive solutions. Any feature or element of any embodiment can also be combined with features or elements from other inventive solutions to form another unique inventive solution. Therefore, it should be understood that any feature shown and / or discussed in this application can be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes can be made within the scope of the appended claims.

[0014] Furthermore, in describing representative embodiments, the specification may have presented methods and / or processes as a specific sequence of steps. However, the method or process should not be limited to the specific order of steps described herein, to the extent that it does not depend on such a specific order. As will be understood by those skilled in the art, other sequences of steps are also possible. Therefore, the specific order of steps set forth in the specification should not be construed as a limitation of the claims. Moreover, the claims concerning the method and / or process should not be limited to the steps performed in the written order, and those skilled in the art will readily understand that these orders can be varied and still remain within the spirit and scope of the embodiments of this application.

[0015] Figure 1 This is a flowchart of a method for processing thin-walled parts according to an embodiment of the present disclosure, such as... Figure 1 As shown, it includes: Step 101: Using the reduction of strain energy by more than 0.9 relative to the initial value as the criterion, determine the preliminary boundary range of the finishing allowance allocation based on the first variation curve. The first variation curve is determined based on the strain energy and machining deformation of the part being cut layer by layer according to the preset cutting thickness in the pre-determined simulation analysis results. The simulation analysis results are determined based on the pre-determined machining deformation simulation model of the target thin-walled part. Step 102: Based on the simulation analysis results, fit the second variation curve of the machining deformation of the part versus the cutting thickness of the part and the variation curve of the process allowance within the determined initial boundary range; Step 103: Determine the finishing allowance at the intersection of the second variation curve and the process allowance variation curve as the optimal finishing allowance for the target thin-walled part.

[0016] This embodiment of the present invention uses the first variation curve of elastic strain energy and machining deformation during the coupled layer-by-layer cutting process. By setting a criterion that the strain energy is reduced by more than 0.9 relative to the initial value, the remaining strain energy is one level smaller than the initial strain energy. This ensures that the newly added machining deformation during the step-by-step cutting process is one level smaller than the overall machining deformation, effectively constraining the interference of the newly added deformation during the finishing process on the machining accuracy. The second variation curve of machining deformation and cutting thickness of the part and the process allowance variation curve are fitted only within a determined preliminary boundary range, reducing the fitting strength of the second variation curve and the process allowance variation curve. The finishing allowance at the intersection of the second variation curve and the process allowance variation curve is determined as the optimal finishing allowance. This satisfies the requirement that the newly added machining deformation corresponding to the finishing allowance after each layer of cutting is minimized, and that the finishing allowance must be greater than the deformation of the previous machining. This provides data support for improving the allocation quality of finishing allowance and the deformation control effect in the machining of large thin-walled parts.

[0017] In this embodiment of the present disclosure, the second variation curve and the process allowance variation curve intersect, indicating that the second variation curve and the process allowance variation curve have the same value. At this time, the finishing allowance is the optimal finishing allowance, which can satisfy the requirement that the additional machining deformation corresponding to the finishing allowance of each cutting layer thickness is minimized, and also satisfy the requirement that the finishing allowance must be greater than the deformation of the previous machining.

[0018] In one exemplary instance, the preset cutting thickness of this disclosure includes: the overall cutting thickness multiplied by a preset percentage, where the preset percentage can be 5% to 10%.

[0019] In one exemplary instance, embodiments of this disclosure can build a machining deformation simulation model of the target thin-walled part based on a deformation simulation platform to obtain simulation analysis results of cutting the blank layer by layer to the target thin-walled part.

[0020] In one exemplary instance, the processing deformation simulation model of this disclosure includes an initial residual stress field.

[0021] In one exemplary instance, the method for removing material elements in the processing deformation simulation model of this disclosure may include: the birth and death element method or the finite element method.

[0022] In one exemplary instance, the second variation curve and the process allowance variation curve of this disclosure embodiment can be fitted using one of the following methods: polynomial fitting and Gaussian fitting.

[0023] In one exemplary instance, the optimal finishing allowance in this embodiment of the disclosure should be equal to or slightly higher than the value obtained when the values ​​of the second variation curve and the process allowance variation curve are equal. The specific value can be set by a technician with reference to relevant experience.

[0024] In one exemplary instance, the method of this disclosure embodiment further includes: Based on the obtained optimal finishing allowance value, the blank of the target thin-walled part is rough-machined; The target thin-walled part obtained by rough machining is clamped and adjusted to fully accommodate the machining deformation caused by the rough machining stage; The thin-walled part is finished by machining according to the machining allowance of the target thin-walled part to obtain the finished product of the target thin-walled part.

[0025] By determining the optimal finishing allowance, the material removal rate during roughing can be established. Finishing removes deformation from previous machining processes, resulting in the finished thin-walled part. This embodiment of the invention, through the use of optimal finishing allowance, not only allows for the rational planning of the clamping and machining process allowance but also enables the collaborative optimization of deformation simulation prediction and the design of anti-deformation machining processes for large thin-walled parts. This significantly improves the deformation control effect and machining accuracy of anti-deformation machining processes for large thin-walled parts.

[0026] The method disclosed herein features wide applicability and high allocation accuracy. It can optimize the machining process design of thin-walled parts and is applicable to the machining process design of single-sided frame beam type thin-walled parts using inter-process clamping adjustments. It can improve the machining accuracy of large thin-walled parts in anti-deformation machining processes. Compared with related technologies, the method disclosed herein takes into account the need to fully remove deformation from previous machining processes and minimize new machining deformation, reducing the reliance on extensive engineering trial cutting experience. It overcomes the limitations of related methods in inter-process clamping machining processes, thereby improving part machining efficiency and enhancing the shape control effect of the machining process.

[0027] In one exemplary instance, the roughing process of this disclosure is completed in one step, with a material removal rate of more than 80%.

[0028] In one exemplary instance, the clamping and adjustment of the target thin-walled part obtained by rough machining according to the embodiments of this disclosure includes: Clamping and adjusting of target thin-walled parts using flexible fixtures; The flexible fixture is adjusted using one of the following methods: air flotation adjustment and alloy phase transformation adjustment. In one exemplary embodiment, the finishing process is completed in one operation.

[0029] This disclosure also provides a computer storage medium storing a computer program, which, when executed by a processor, implements the above-described method for processing thin-walled parts.

[0030] This disclosure also provides a terminal, including: a memory and a processor, wherein the memory stores a computer program; wherein, The processor is configured to execute computer programs in memory; When a computer program is executed by a processor, it implements the method for machining thin-walled parts as described above.

[0031] Figure 2 This is a structural block diagram of the apparatus for processing thin-walled parts according to an embodiment of the present disclosure, as shown below. Figure 2 As shown, it includes: defining boundary units, fitting curve units, and defining residual units; wherein, The boundary element is set as follows: the initial boundary range of the finishing allowance allocation is determined based on the first variation curve, with the strain energy decreasing by more than 0.9 relative to the initial value as the criterion. The first variation curve is determined based on the strain energy and machining deformation of the part being cut layer by layer according to the preset cutting thickness in the pre-determined simulation analysis results. The simulation analysis results are determined based on the pre-determined machining deformation simulation model of the target thin-walled part. The fitting curve unit is set as follows: based on the simulation analysis results, the second variation curve of the machining deformation of the part and the cutting thickness value of the part and the process allowance variation curve are fitted within the initial boundary range determined by the simulation analysis. The allowance unit is set as follows: the finishing allowance at the intersection of the second variation curve and the process allowance variation curve is determined as the optimal finishing allowance for the target thin-walled part.

[0032] In one exemplary instance, the preset cutting thickness of this disclosure includes: the overall cutting thickness multiplied by a preset percentage, where the preset percentage can be 5% to 10%.

[0033] In one exemplary instance, the processing deformation simulation model of this disclosure includes an initial residual stress field.

[0034] In one exemplary instance, the method for removing material elements in the processing deformation simulation model of this disclosure includes: the birth and death element method or the finite element method.

[0035] In one exemplary instance, the fitting curve unit of this disclosure embodiment is configured to: based on the simulation analysis results, use either polynomial fitting or Gaussian fitting to fit a second variation curve of the machining deformation of the part versus the cutting thickness of the part and a process allowance variation curve within a preliminary boundary range.

[0036] In one exemplary instance, the apparatus of this disclosure embodiment further includes a processing unit, configured to: Based on the obtained optimal finishing allowance value, the blank of the target thin-walled part is rough-machined; The target thin-walled part obtained by rough machining is clamped and adjusted to fully accommodate the machining deformation caused by the rough machining stage; The thin-walled part is finished by machining according to the machining allowance of the target thin-walled part to obtain the finished product of the target thin-walled part.

[0037] In one exemplary instance, the processing unit of this disclosure embodiment is configured to clamp and adjust the target thin-walled part obtained by rough machining, including: Clamping and adjusting of target thin-walled parts using flexible fixtures; The flexible fixture is adjusted using one of the following methods: air flotation adjustment and alloy phase transformation adjustment.

[0038] The following application examples briefly illustrate the embodiments of this disclosure. These application examples are only used to illustrate the embodiments of this disclosure and are not intended to limit the scope of protection of the embodiments of this disclosure.

[0039] Application Examples This application example includes: A machining deformation simulation model of the target thin-walled part was built based on a deformation simulation platform. The birth and death element method was used to obtain the simulation analysis results of cutting the blank layer by layer according to the preset cutting thickness to the target thin-walled part.

[0040] The processing deformation simulation model of this embodiment includes an initial residual stress field. Figures 3 to 5 The initial stress balance diagrams represent the X, Y, and Z axes, respectively. The diagrams illustrate the distribution of residual stress in the model in these three directions. The blank material of the target thin-walled part is aluminum alloy 7050-T7451, with a length, width, and thickness of 620 mm, 100 mm, and 50 mm, respectively. The simulation analysis results are as follows: Figure 6 As shown, Figure 6 This indicates the deformation that occurs when the blank is cut layer by layer to the target part without anti-deformation processing optimization. The total material removal depth is 42.5 mm, and the maximum processing deformation is 0.96 mm.

[0041] Based on the simulation analysis results, the first variation curves of strain energy and machining deformation during the layer-by-layer cutting process of the part are obtained. The preliminary boundary range of the finishing allowance allocation is determined with strain energy release >90% as the criterion.

[0042] The first variation curve of strain energy and machining deformation during the layer-by-layer cutting process of the part in this embodiment of the present disclosure is as follows: Figure 7 As shown, the dashed line represents the change of strain energy during the layer-by-layer cutting process, and the solid line represents the change of machining deformation during the layer-by-layer cutting process. With strain energy release >90% as the criterion, the preliminary boundary range of the finishing allowance distribution can be obtained as 32.5 mm ~ 42.5 mm from the machined upper surface. Within this preliminary boundary range, the increment of machining deformation introduced by each layer of part removal is stable within 0.1 mm.

[0043] Based on the simulation analysis results, the second variation curve Y1 of the machining deformation and the cutting thickness of the part within the initial boundary range and the variation curve Y2 of the process allowance are obtained. The expressions of the two curves Y1 and Y2 are obtained by polynomial fitting method: ; See Figure 8 The solid line represents the second variation curve Y1 within the initial boundary range, and the dashed line represents the process allowance variation curve Y2 within the initial boundary range. Let the machining allowance equal to the deformation amount of the preceding machining, i.e., Y1 = Y2. Solving the system of equations, we get x ≈ 41.57, meaning the corresponding optimal finishing process allowance is 42.5 - 41.57 = 0.93 (mm). (Compare with...) Figure 7 The machining deformation amount in the process, the new machining deformation amount under the finishing allowance is within 0.1 mm; in the embodiments of this disclosure, if the finishing allowance is too small (i.e. located to the right of the intersection of the two curves), the previous machining deformation cannot be fully removed. Therefore, the value of the finishing allowance used in actual processing should be equal to or slightly higher than the value of the equation solution, which is rounded to 1 mm here.

[0044] The machining of the target thin-walled part is divided into two processes: roughing and finishing. Based on the optimal finishing allowance obtained from the solution, the machining allowance of the target thin-walled part after roughing is determined to be 1 mm.

[0045] After rough machining of the target thin-walled part, clamping and adjustment are performed to fully accommodate the machining deformation caused by the rough machining stage; see [link to relevant documentation]. Figure 9 The workpiece deformation is released by clamping and adjustment until it stabilizes, and the machining deformation of the part after rough machining is 0.893 mm.

[0046] Finishing is performed according to the process allowance of the target thin-walled part to remove deformation caused by previous machining, thereby obtaining the finished target thin-walled part. See also Figure 10 After finishing, all clamps are released, and the final machining deformation of the finished part is measured to be 0.181 mm. Thus, the machining accuracy of the part obtained in this embodiment of the present disclosure is improved by 79.7% compared with the roughing stage.

[0047] This disclosure combines finite element simulation and theoretical solutions to establish a basis for allocating process allowances based on the increment of strain energy and machining deformation, thereby achieving process allowance planning for the deformation-resistant machining of large thin-walled parts. Compared to commonly used process allowance allocation methods in industry, this disclosure reduces reliance on engineering experience, which is of great significance in the application of deformation-resistant machining of large thin-walled parts. By rationally allocating process allowances, while ensuring the full removal of existing deformations, it effectively constrains the interference of new deformations during the finishing process on the machining accuracy of the finished product, realizing a collaborative strategy optimization of deformation simulation prediction and deformation-resistant machining process design for large thin-walled parts. While optimizing process allowances, this disclosure simplifies the machining process of thin-walled parts, reduces the number of workpiece disassembly and clamping operations, and effectively shortens the machining cycle of thin-walled parts under weak stiffness conditions. It also helps to reduce risks such as machining vibration, and has significant application value in improving the production efficiency and machining process stability of large thin-walled structural parts.

[0048] It will be understood by those skilled in the art that all or some of the steps, systems, or apparatuses disclosed above, and their functional modules / units, can be implemented as software, firmware, hardware, or suitable combinations thereof. In hardware implementations, the division between functional modules / units mentioned above does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed collaboratively by several physical components. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit (ASIC). Such software may be distributed on a computer-readable medium, which may include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term "computer storage medium" includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

Claims

1. A method for processing thin-walled parts, characterized in that, include: Using a reduction of strain energy by more than 0.9 relative to the initial value as a criterion, the preliminary boundary range of the finishing allowance allocation is determined based on the first variation curve. The first variation curve is determined based on the strain energy and machining deformation of the part being cut layer by layer according to the preset cutting thickness in the pre-determined simulation analysis results. The simulation analysis results are determined based on the pre-determined machining deformation simulation model of the target thin-walled part. Based on the simulation analysis results, the second variation curve of the machining deformation of the part versus the cutting thickness value and the variation curve of the process allowance within the determined initial boundary range are fitted. The finishing allowance at the intersection of the second variation curve and the process allowance variation curve is determined as the optimal finishing allowance for the target thin-walled part.

2. The method according to claim 1, characterized in that, The preset cutting thickness includes: The overall cutting thickness of the target thin-walled part is multiplied by a preset percentage; The preset percentage ranges from 5% to 10%.

3. The method according to claim 1, characterized in that, The machining deformation simulation model includes an initial residual stress field.

4. The method according to claim 1, characterized in that, The methods for removing material elements in the processing deformation simulation model include: the birth and death element method or the finite element method.

5. The method according to claim 1, characterized in that, The second variation curve and the process allowance variation curve are fitted using one of the following methods: Polynomial fitting and Gaussian fitting.

6. The method according to any one of claims 1 to 5, characterized in that, After determining the finishing allowance at the intersection of the second variation curve and the process allowance variation curve as the optimal finishing allowance for the target thin-walled part, the method further includes: Based on the obtained optimal finishing allowance value, the blank of the target thin-walled part is rough-machined; The target thin-walled part obtained by rough machining is clamped and adjusted to fully accommodate the machining deformation caused by the rough machining stage; The target thin-walled part is finished by performing finishing work according to the finishing allowance to obtain the finished product of the target thin-walled part.

7. The method according to claim 6, characterized in that, The clamping and adjustment of the target thin-walled part obtained by rough machining includes: The target thin-walled part is clamped and adjusted using a flexible clamp; The flexible clamp is adjusted using one of the following methods: air flotation adjustment and alloy phase transformation adjustment.

8. A computer storage medium storing a computer program that, when executed by a processor, implements the method for machining a thin-walled part as described in any one of claims 1 to 7.

9. A terminal, comprising: A memory and a processor, wherein the memory stores a computer program; wherein, The processor is configured to execute computer programs in memory; When the computer program is executed by the processor, it implements the method for machining thin-walled parts as described in any one of claims 1 to 7.

10. An apparatus for processing thin-walled parts, characterized in that, include: Determine the boundary cells, the fitted curve cells, and the residual cells; among which, The boundary element is set as follows: the initial boundary range of the finishing allowance allocation is determined based on the first variation curve, with the criterion that the strain energy decreases by more than 0.9 relative to the initial value. The first variation curve is determined based on the strain energy and machining deformation of the part being cut layer by layer according to the preset cutting thickness in the pre-determined simulation analysis results. The simulation analysis results are determined based on the pre-determined machining deformation simulation model of the target thin-walled part. The fitting curve unit is set as follows: based on the simulation analysis results, the second variation curve of the machining deformation of the part and the cutting thickness value of the part and the process allowance variation curve are fitted within the initial boundary range determined by the simulation analysis. The allowance unit is set as follows: the finishing allowance at the intersection of the second variation curve and the process allowance variation curve is determined as the optimal finishing allowance for the target thin-walled part.

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