GB2594182A - Machining process for large-diameter thin-walled part - Google Patents
Machining process for large-diameter thin-walled part Download PDFInfo
- Publication number
- GB2594182A GB2594182A GB2108394.4A GB202108394A GB2594182A GB 2594182 A GB2594182 A GB 2594182A GB 202108394 A GB202108394 A GB 202108394A GB 2594182 A GB2594182 A GB 2594182A
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- GB
- United Kingdom
- Prior art keywords
- machining
- outer circle
- semi
- finished product
- large diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/22—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cartridges or like shells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
- B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/065—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/01—Aircraft parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Forging (AREA)
Abstract
A machining process for a large-diameter thin-walled part. The machining process comprises the steps of: S1. selecting a raw material having an appropriate size; S2, machining an inner hole (5); S3. performing shaping; S4. performing aging heat treatment; S5. semi-finishing the inner hole (5) and part of the shape; S6. semi-finishing part of the shape; S7. performing natural aging treatment; S8. finishing the inner hole (5) and a second end (8); S9. finishing a second outer circle (2) and a process step (6); S10. finishing a first outer circle (1); S11. machining and forming a flange (3); and S12. machining and forming multiple protrusions (4). According to the machining process, a stable process route is designed to control deformation, reduce the number of times of positioning and clamping, shorten the machining time, improve machining efficiency and ensure product quality; the one-time machining of all features is implemented by means of the positioning of the inner hole (5), ensuring that product deformation is within a controllable range; reasonable process parameters are used to achieve accurate production guidance work, get rid of the limitation of special person and special machine, and well implement automated production.
Description
A Process for Machining A Large Diameter Thin-walled Workpiece
Technical Field
The Invention relates to the field of mechanical processing and manufacturing, and in particular to a process for machining a large diameter thin-walled workpiece for an aircraft kitchen and bathroom system.
Background Technology
The structure of a large thin-walled pipe for an aircraft kitchen and bathroom system is complex, with a maximum diameter of 360mm, a total length of 560mm, and a minimum wall thickness of 1.3mm. Meanwhile, since the position accuracy of the hole on the flange surface of the workpiece is higher than that for the inner bore of the workpiece, the structure of the workpiece is asymmetric, and there is a gap, the likelihood of causing deformation in the cutting process is high.
The material of the workpiece is stainless steel 17-4PH, which has a high temperature strength and high temperature hardness. Therefore, in the process of machining, cutting resistance is produced which causes surface hardening. Additionally, difficulties with chip breaking, tool sticking, tool wear are experienced and a high cutting temperature is required. Furthermore, as the workpiece structure is thin-walled, the machining process is greatly affected by cutting force, clamping force and cutting temperature, which affect the dimensional accuracy and surface quality of the parts, resulting in large deformation and difficult processing. The processing of this workpiece, especially for milling, needs to be processed by multiple processes, which cannot be completed simultaneously under one clamping. This will increase the number of times the workpiece needs to be clamped, and also produce cumulative error, which will affect the product accuracy. Besides, it will increase the machining time, with low production efficiency.
Content of the Invention The technical problem to be solved by the Invention is to provide a process for machining a large diameter thin-walled workpiece with convenient processing and high precision.
The technical solution taken by the Invention for the above issue is: a process for machining a large diameter thin-walled workpiece, wherein the large diameter thin-walled workpiece includes an axial inner bore, an outer circle on the outside, a flange on the outer circle and multiple lug bosses near the radial direction of the flange, and the said lug bosses and flange divide the outer circle into a first outer circle and a second outer circle, wherein said process comprises the following steps: Si. Selecting raw materials with an appropriate size: S2. Machining the inner bore by wire cutting the raw material, and wherein a machining allowance of 2-3mm is left on one side of the inner bore; S3. Conducting rough-machining in the axial and radial directions of the outer side of the raw material to form the first outer circle, the second outer circle, a raised surface between the first outer circle and the second outer circle, and the two ends, all with a machining allowance of 2-3mm; S4. Conducting ageing heat treatment to the semi-finished product obtained from step S3; S5. Fixing the first end of the semi-finished product, and conducting semi-finish machining to the inner bore, the second outer circle, the raised surface and the second end, and leaving a machining allowance of 0 5-0 8mm; 56. Fixing the second end of the semi-finished product, and carrying out semi-finish machining to the first outer circle and the first end, and leaving a machining allowance of 0.5-0.8mm; S7. Natural ageing treatment to the semi-finished product, with a treatment time of 7-8 hours; S8. Fixing the first end of the semi-finished product, and carrying out fine-machining to the inner bore and the second end to reach the required size; 59. Inserting a disc into the inner bore of the two ends of the semi-finished product respectively to fix the first end of the semi-finished product, and carrying out fine-machining to the second outer circle and the raised surface up to the required size; 510. Turning over the semi-finished product, fixing the second end of the semi-finished product, wherein the first end is positioned through an ejector pin, and carrying out fine-machining to the first outer circle up to the required size.
S11. Placing the first end of the semi-finished product downward, fixing the inner bore through the hydraulic clamping fixture, which applies a pressure of 1.0-1.2Mpa for clamping, processing a hole and positioning surface on the raised surface to form a flange; S12. Placing the positioning surface in the step Si 1 downward, fixing the inner bore through the hydraulic clamping fixture, which applies a pressure of 1.0-1.2Mpa for clamping, to process the raised surface to form multiple bosses.
More specifically, the hardness of the ageing heat treatment in step S4 is controlled within FIRC34-42.
More specifically, between step S4 and step S5, the position of the first outer circle near the first end, the position of the second outer circle near the second end, and the position of the raised surface near the first end are machined to the required size by turning for clamping.
More specifically, the center frame is used to support the position at the raised surface in step S5, step S6, step S8, step S9 and step S10.
More specifically, the pressure is released within 30 minutes after the processing is completed in steps Sll and 512.
More specifically, the load of the principal axis is controlled within 5.5 kW in the machining technique.
More specifically, the large diameter thin-walled workpiece is made of I 7-4PH stainless steel material.
More specifically, one of the two discs in step S9 is provided with a taper hole at its center, and the said taper hole is matched with the ejector pin.
The beneficial effect of the Invention is: design a stable process route to control deformation, reduce clamping times, shorten processing time, so as to improve processing efficiency and ensure product quality. Through the inner bore positioning, all features are processed at one time with the specified clamping force to ensure that the product deformation is within the controllable range; accurate production guidance is achieved by using reasonable process parameters, which gets rid of the requirement of dedicated operator for a specific machine, and completes automatic production better; and the process efficiency and product quality are improved.
Descriptions to the Attached Figures
Fig. 1 is a flow chart of the Invention Fig. 2 is a structural diagram of the finished product of a large diameter thin-walled workpiece of the Invention; Fig. 3 is a structural diagram of the intermediate-stage of a large diameter thin-walled workpiece of the Invention.
In the figures: 1. First outer circle; 2. Second outer circle; 3. Flange; 4. Lug boss; 5. Inner bore; 6. Raised surface; 7. First end; 8. Second end.
Specific Mode of Implementation Detailed descriptions to the Invention are made in combination with the attached figures as follows: A process for machining a large diameter thin-walled workpiece as illustrated in Fig. I and Fig. 2, wherein a large diameter thin-walled workpiece includes an axial inner bore 5, an outer circle on the outside, the flange 3 on the outer circle and multiple bosses 4 on the radial direction near the flange 3, and multiple bosses 4 and flange 3 divide the outer circle into the first outer circle 1 and the second outer circle 2. The steps of the process are as follows: Si. Selecting raw materials with an appropriate size. Select 17-4PH stainless steel material, the shape of which is of a columnar structure, with a diameter of 400mm and a length of 600mm.
S2. First, the inner bore 5 is processed by wire cutting on the stainless steel material, and the actual size of the inner bore 5 is processed to the required size. Considering the deformation from heat treatment and subsequent fine-machining, the machining allowance of 2-3mm is left on one side of the inner bore 5 which is rough-machined.
S3. Rough-machining is carried out in the axial and radial directions of the outer side of the stainless steel material to form the first outer circle, the second outer circle, the raised surface between the first outer circle and the second outer circle, and the two ends, all with a machining allowance of 2-3mm; S4. Carrying out ageing heat treatment to the semi-finished product from step S3, so that the hardness of the semi-finished product reaches HRC34-42.
S5. In order to remove the deformation from heat treatment, ensure accurate positioning and facilitate clamping, the position of the first outer circle 1 near the first end 7, the position of the second outer circle 2 near the second end 8 and the position of the raised surface 6 near the first end 7 are machined by turning until they have a metallic luster. Having a metallic luster means to remove the surface layer of the semi-finished product, and the purpose here is mainly to remove the deformation; the fixing of the first end 7 of the semi-finished product is realized through clamping the area having a metallic luster of the first outer circle with a three-jaw chuck, while the raised surface 6 is clamped on the center frame for auxiliary support. The area having a metallic luster of the second outer circle 2 and the area having a metallic luster of the raised surface 6 are checked by a dial indicator to ensure that the circle nmout is within 0 1 mm, then carry out semi-rough machining to the inner bore 5, the second outer circle 2, the raised surface 6 and the second end 8, with a machining allowance of 0.5-0.8mm.
S6. The second end 8 of the semi-finished product is fixed by clamping the area having a metallic luster of the second outer circle 2 with a three-jaw chuck, while the auxiliary support is provided on the raised surface 6 clamped by the center frame. The area having a metallic luster of the first outer circle 1 and the area having a metallic luster of the raised surface 6 are checked by a dial indicator to ensure that the circle runout is within 0.1 mm. At this time, the first outer circle 1 and the first end 7 are rough-machined, and the machining allowance of 0.5 -0.8mm is left; S7. Natural ageing treatment to the semi-finished product, with the treatment time of 7-8 hours; S8. The first end 7 of the semi-finished product is fixed by clamping the area having a metallic luster of the first outer circle 1 with a three-jaw chuck, while the center frame clamping the raised surface 6 is used for auxiliary support. The area having a metallic luster on the second outer circle 2 is checked by a dial indicator to ensure that the circle runout is less than 0.08mm; then, carry out fine-machining to the inner bore 5 and the second end part 8 to meet the drawing requirements.
S9. Inserting a disc into the inner bore 5 at both ends of the semi-finished product, and one of the two discs has a taper hole in the center. In order to fit with the ejector pin conveniently, insert the disc without taper hole into the inner bore of the first end 7: in order to prevent clamping deformation, the area having a metallic luster of the first outer circle 1 is clamped by a three-jaw chuck to fix the first end 7 of the semi-finished product; as the workpiece is long and heavy, it is necessary to support the other end of the workpiece. Inserting the disc with the taper hole into the inner bore of the second end 8, and inserting the ejector pin into the taper hole of the disc with the taper hole to realize positioning. The raised surface 6 is clamped by the center frame for auxiliary support, and the second outer circle 2 is checked by the dial indicator to ensure that the circle runout is within 0.08mm. The second outer circle 2 and raised surface 6 are fine-machined to the required size.
S10. Turning over the semi-finished product, inserting the disc without taper hole into the inner bore of the second end 8, and inserting the disc with taper hole into the inner bore of the first end 7, and the fixing method and checking method are as in step 59, to realize fixing the second end 8 of the semi-finished product and the auxiliary support; and then perform fine-machining to the first outer circle 1 up to the required size.
S11. Placing the first end 7 of the semi-finished product downward, and the inner bore 5 is fixed by a hydraulic clamping fixture: use a 0.05mm plug to check whether the first end 7 fits in place with the joint surface of the hydraulic clamping fixture. When the joint is in place, the hydraulic clamping fixture applies a pressure of 1.0-I.2MPa for tight clamping, and then the end face of the second end 8 is checked by a dial indicator to ensure that the runout is controlled within 0.1mm; a flange 3 is formed by machining holes and positioning surface on the raised surface 6; after finishing the machining, it is required that the hydraulic clamping fixture releases pressure within 30 minutes.
S12. Placing the positioning surface in step Sll downward, fixing the inner bore 5 with the hydraulic clamping fixture, using the 0.05mm plug to check whether the fitting surface of the second end 8 and the hydraulic clamping fixture fits in place, apply 1.0 -1.2MPa pressure to the hydraulic clamping fixture after fitting in place, and then checking the end face and circumferential direction of the second end 8 with the dial indicator to ensure that the nmout is controlled within 0.1 mm The raised surface 6 is processed to form multiple bosses 4 and flange 3 to the required size; after finishing the machining, the hydraulic clamping fixture should release the pressure within 30 minutes.
The principal axis load of the whole process above is controlled within 25%, that is, 5.5kW.
In summary, by analyzing the processing performance of stainless steel 17-4PH material and the structural characteristics of the thin-walled workpiece of the aircraft-grade kitchen and bathroom piping system, a stable process route was designed and invented to control deformation, reduce the number of clamping times, shorten processing time, improve processing efficiency and guarantee the product quality; use reasonable process parameters to achieve accurate production guidance, get rid of the requirement of dedicated operator for a specific machine, and improved complete automatic production.
It should be emphasized that the above are only the preferred embodiment of the Invention, and are not intended to limit the Invention in any form; any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the Invention fall within the scope of the technical solutions of the Invention.
Claims (8)
- Claims 1. A process for machining a large diameter thin-walled workpiece, wherein the large diameter thin-walled workpiece includes an axial inner bore, an outer circle on the outside, a flange on the outer circle and multiple lug bosses near the radial direction of the flange, and the lug bosses and flange divide the outer circle into a first outer circle and a second outer circle, and the process comprises the following steps: Si. Selecting raw materials with an appropriate size; S2. Machining the inner bore by wire cutting the raw material, and wherein a machining allowance of 2-3inm is left on one side of the inner bore; S3. Conducting rough-machining in the axial and radial directions of the outer side of the raw material to form the first outer circle, the second outer circle, the raised surface between the first outer circle and the second outer circle, and the two ends, all with a machining allowance of 2-3mm; S4. Conducting ageing heat treatment to the semi-finished product obtained from step 53; S5. Fixing the first end of the semi-finished product, and conducting semi-finish machining to the inner bore, the second outer circle, the raised surface and the second end, and leaving a machining allowance of 0.5-0.8mm; S6. Fixing the second end of the semi-finished product, and carrying out semi-finish machining to the first outer circle and the first end, and leaving a machining allowance of 0.5-0.8mm; S7. Natural ageing treatment to the semi-finished product, with a treatment time of 7-8 hours; S8. Fixing the first end of the semi-finished product, and carrying out fine-machining to the inner bore and the second end to reach the required size; S9. Inserting a disc into the inner bore of the two ends of the semi-finished product respectively to fix the first end of the semi-finished product, and carrying out fine-machining to the second outer circle and the raised surface up to the required size; S10. Turning over the semi-finished product, fixing the second end of the semi-finished product, wherein the first end is positioned through an ejector pin, and carrying out fine-machining to the first outer circle up to the required size.S11. Placing the first end of the semi-finished product downward, fixing the inner bore through the hydraulic clamping fixture, which applies a pressure of 1.0-i.2Mpa for clamping, processing a hole and positioning surface on the raised surface to form a flange; S12. Placing the positioning surface in the step S11 downward, fixing the inner bore through the hydraulic clamping fixture, which applies a pressure of 1.0-1.2Mpa for clamping, to process the raised surface to form multiple bosses.
- 2. A process for machining a large diameter thin-walled workpiece as described in Claim 1, wherein the hardness of the ageing heat treatment in step 54 is controlled within HRC34-42.
- 3. A process for machining a large diameter thin-walled workpiece as described in Claim 1, wherein the position near the first end of the first outer circle, the position near the second end of the second outer circle and the position of the raised surface near the first end are processed up to a metallic luster for clamping between the step 54 and step S5 through turning.
- 4. A process for machining a large diameter thin-walled workpiece as described in Claim I or 3, wherein the center frame is used and supported at the position of the raised surface in step S5, step 56, step 58, step S9 and step SIO.
- 5. A process for machining a large diameter thin-walled workpiece as described in Claim 1, wherein the pressure is released within 30 minutes after processing in step Sll and Si 2.
- 6. A process for machining a large diameter thin-walled workpiece as described in Claim 1, wherein the load of the principal axis in the process is controlled with 5.5kW.
- 7. A process for machining a large diameter thin-walled workpiece as described in Claim 1, wherein the large diameter thin-walled workpiece is made by processing 17-4PH stainless steel material.
- 8. A process for machining a large diameter thin-walled workpiece as described in Claim 1, wherein one of the two discs in step S9 is provided with a taper hole at its center, and the taper hole matches with the ejector pin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910535490.8A CN110102988B (en) | 2019-06-20 | 2019-06-20 | Machining process of large-diameter thin-wall part |
| PCT/CN2020/097053 WO2020253818A1 (en) | 2019-06-20 | 2020-06-19 | Machining process for large-diameter thin-walled part |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| GB202108394D0 GB202108394D0 (en) | 2021-07-28 |
| GB2594182A true GB2594182A (en) | 2021-10-20 |
| GB2594182A9 GB2594182A9 (en) | 2022-11-30 |
| GB2594182B GB2594182B (en) | 2023-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2108394.4A Active GB2594182B (en) | 2019-06-20 | 2020-06-19 | Machining process for large-diameter thin-walled part |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110102988B (en) |
| GB (1) | GB2594182B (en) |
| WO (1) | WO2020253818A1 (en) |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0236026A (en) * | 1988-07-21 | 1990-02-06 | Fuji Electric Co Ltd | Working method for thin wall pipe |
| CN103949851A (en) * | 2014-04-16 | 2014-07-30 | 贵州凯星液力传动机械有限公司 | Processing method of aluminum alloy thin-wall cylindrical part |
| CN106246705A (en) * | 2016-07-26 | 2016-12-21 | 广州市锐美汽车零部件有限公司 | A kind of electric motor of automobile rotating shaft and processing method thereof |
| CN106271456A (en) * | 2016-09-05 | 2017-01-04 | 重庆江增船舶重工有限公司 | A kind of axle sleeve processing technique |
| CN107175475A (en) * | 2017-07-03 | 2017-09-19 | 沈阳透平机械股份有限公司 | A kind of processing method of long Thin-wall cylindrical part |
| CN109262292A (en) * | 2018-12-11 | 2019-01-25 | 河南理工大学 | With the fluid pressure type fixture and its application method of Internal hole positioning automated exchanged cutter thin-walled steel bushing |
| CN110102988A (en) * | 2019-06-20 | 2019-08-09 | 苏州市航宝科技技术有限公司 | Machining process of large-diameter thin-wall part |
-
2019
- 2019-06-20 CN CN201910535490.8A patent/CN110102988B/en active Active
-
2020
- 2020-06-19 GB GB2108394.4A patent/GB2594182B/en active Active
- 2020-06-19 WO PCT/CN2020/097053 patent/WO2020253818A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0236026A (en) * | 1988-07-21 | 1990-02-06 | Fuji Electric Co Ltd | Working method for thin wall pipe |
| CN103949851A (en) * | 2014-04-16 | 2014-07-30 | 贵州凯星液力传动机械有限公司 | Processing method of aluminum alloy thin-wall cylindrical part |
| CN106246705A (en) * | 2016-07-26 | 2016-12-21 | 广州市锐美汽车零部件有限公司 | A kind of electric motor of automobile rotating shaft and processing method thereof |
| CN106271456A (en) * | 2016-09-05 | 2017-01-04 | 重庆江增船舶重工有限公司 | A kind of axle sleeve processing technique |
| CN107175475A (en) * | 2017-07-03 | 2017-09-19 | 沈阳透平机械股份有限公司 | A kind of processing method of long Thin-wall cylindrical part |
| CN109262292A (en) * | 2018-12-11 | 2019-01-25 | 河南理工大学 | With the fluid pressure type fixture and its application method of Internal hole positioning automated exchanged cutter thin-walled steel bushing |
| CN110102988A (en) * | 2019-06-20 | 2019-08-09 | 苏州市航宝科技技术有限公司 | Machining process of large-diameter thin-wall part |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020253818A1 (en) | 2020-12-24 |
| GB202108394D0 (en) | 2021-07-28 |
| GB2594182B (en) | 2023-02-01 |
| CN110102988B (en) | 2020-12-29 |
| GB2594182A9 (en) | 2022-11-30 |
| CN110102988A (en) | 2019-08-09 |
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