CN116511327A - Thin-wall conical tube forming die with flanging characteristic and method - Google Patents
Thin-wall conical tube forming die with flanging characteristic and method Download PDFInfo
- Publication number
- CN116511327A CN116511327A CN202310404963.7A CN202310404963A CN116511327A CN 116511327 A CN116511327 A CN 116511327A CN 202310404963 A CN202310404963 A CN 202310404963A CN 116511327 A CN116511327 A CN 116511327A
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- flanging
- tube
- conical tube
- thin
- forming
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000005520 cutting process Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 230000007547 defect Effects 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 4
- 238000006748 scratching Methods 0.000 abstract description 4
- 230000002393 scratching effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003698 laser cutting Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/0093—Working by laser beam, e.g. welding, cutting or boring combined with mechanical machining or metal-working covered by other subclasses than B23K
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a thin-wall conical tube forming die with flanging characteristic and a method thereof, and relates to the technical field of thin-wall conical tubes. The invention has the advantages that: 1. the invention can avoid scratching the outer wall of the pipe fitting in the use process, and can ensure the precision and reliability of the size of the part; 2. the invention can avoid scratching the outer wall of the pipe fitting in the use process, ensure the precision and reliability of the size of the part, avoid the defects of wrinkling, buckling, cracking and the like of the pipe fitting and improve the production efficiency.
Description
Technical Field
The invention relates to the technical field of thin-wall conical tubes, in particular to a thin-wall conical tube forming die with flanging characteristics and a method.
Background
The conical pipe fitting with the conical surface having flanging characteristic is formed by adopting the technical methods of hydraulic shrinkage pipe, spinning, internal high pressure, stamping, splice welding and the like.
And (3) hydraulic shrinkage pipe: the working procedure is complex, the reliability of the parts is poor, the outer wall of the pipe fitting is scratched, the opening part is easy to be elliptic, and the thickness of the minimum end wall of the taper pipe is thickened. Spinning, namely, the outer wall of the pipe fitting is scratched, the opening part is easy to be elliptical, and the reliability of the part is poor. The inner high pressure process can form the taper pipe with the straight section, but the mould can be increased along with the increase of the length of the taper pipe, and the thinning of the maximum outer diameter is also increased along with the increase of the length of the taper pipe, so that the defects of wrinkling, buckling, cracking and the like can occur. The conical pipe process of stamping and welding adopts a split manufacturing method, firstly uses a conical flanging part of a conical pipe formed by a plate material, rolls the conical pipe into a conical pipe by a rolling machine, then welds the conical pipe, and also uses a cut or punched plate material to roll into a circular pipe by the rolling machine for welding, and finally butt-welds the welded conical pipe fitting with flanging characteristic with the circular pipe.
Spinning, namely, the outer wall of the pipe fitting is scratched, the opening part is easy to be elliptical, and the reliability of the part is poor. The inner high pressure process can form the taper pipe with the straight section, but the mould can be increased along with the increase of the length of the taper pipe, and the thinning of the maximum outer diameter is also increased along with the increase of the length of the taper pipe, so that the defects of wrinkling, buckling, cracking and the like can occur.
Disclosure of Invention
The invention aims to provide a thin-wall conical tube forming die with flanging characteristic and a method thereof, so as to solve the defects in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the machine comprises a machine frame, wherein a die fixing seat is fixedly arranged on the top surface of the machine frame, a motor fixing seat is fixedly arranged below the machine frame, a motor is fixedly arranged on the top surface of the motor fixing seat, a small driving wheel is fixedly arranged on an output shaft of the motor, a large driving wheel is arranged above the small driving wheel, the small driving wheel is connected with the large driving wheel through a driving belt, a rotary shrinkage die is rotatably arranged in the die fixing seat, and the rotary shrinkage die is fixedly connected with the large driving wheel.
The thin-wall conical tube forming die with the flanging characteristic is characterized in that the frame is composed of the top plate, the bottom plate and the supporting rods, the top plate is located above the bottom plate, four corners of the top surface of the bottom plate are fixedly connected with the bottom surface of the top plate through the supporting rods, the motor fixing seat is fixedly arranged on the top surface of the bottom plate, and the die fixing seat is fixedly arranged on the top surface of the top plate.
A shaping method of a thin-wall conical tube with flanging features, wherein the shaping method comprises the following steps:
selecting a straight pipe blank: the outer diameter of the straight pipe blank is smaller than the minimum outer diameter of the final taper pipe, the wall thickness of the straight pipe blank is larger than or equal to the wall thickness of the final taper pipe, the straight pipe blank can be a seamless pipe or a seamless pipe, and the dimension parameters of the straight pipe blank are required to ensure that the straight pipe blank can be smoothly placed into an inner high-pressure forming die;
placing into a die: placing the straight pipe blank into an inner high-pressure forming die, typically a lower die;
and (3) die assembly: the upper die moves downwards and is completely closed with the lower die, and the tube blank is clamped between the upper die and the lower die;
pushing head feeding: the two pushing heads move along the axes of the two ends of the straight pipe towards the inner direction of the die, so that the two ends of the straight pipe blank are clamped between the die and the pushing heads, and the sealing effect of the two ends of the straight pipe blank is realized;
filling liquid and pressurizing: applying a certain clamping force F1 to the dies to enable the upper die and the lower die to be tightly attached, and applying a certain axial force to the left push head and the right push head respectively to enable the two ends of the straight pipe blank to be tightly attached to the dies, so that a closed space is formed inside the straight pipe blank; the hydraulic system fills liquid into the straight pipe blank through a channel in the push head, the liquid pressure P is gradually increased, the left push head and the right push head generate axial displacement matched with the internal pressure P under the action of proper thrust, at the moment, the pipe fitting is completely in a free bulging state, and when the feed of the push head is finished, the straight pipe blank is gradually deformed and stuck to a die under the action of the liquid pressure to form an inner high-pressure formed pipe blank;
opening the die and taking the tube: after the die is opened, taking out the inner high-pressure forming tube blank;
cutting: cutting waste materials at the two ends and the middle part of the useless water expansion forming tube blank by adopting laser cutting;
flanging: the semi-finished product after laser cutting needs to be turned up on the conical surface, and the turned-up characteristic of the product is finished by adopting a punching turned-up (internal stay turned-up) process from inside to outside.
A shaping method of a thin-wall conical tube with flanging features, the shaping method II comprises the following steps:
selecting a straight pipe blank: the outer diameter of the straight tube blank is equal to the maximum outer diameter of the final taper tube, the wall thickness of the straight tube blank is smaller than or equal to the wall thickness of the final taper tube, the straight tube blank can be a seamed tube or a seamless tube, and the dimension parameters of the straight tube blank are required to ensure that the straight tube blank can be smoothly put into a rotary shrinkage die (shrinkage cavity);
starting the machine: firstly, a motor is electrified, the motor drives a small rotating wheel to rotate clockwise or anticlockwise, a transmission shaft 1 drives a large rotating wheel to rotate clockwise or anticlockwise through a belt or a chain, and a transmission shaft 2 is connected with a 2 rotary mold, so that the mold can also rotate along with the rotation of the motor;
spin-down (necking): inserting the blank pipe into a rotating shrinking mold, applying a certain thrust force, generating axial displacement by the blank pipe under the action of the axial thrust force and the rotation of the mold, completely adhering a film on the outer wall of the blank pipe and the inner wall of the mold, stopping the axial thrust force after the length of the taper section reaches the drawing requirement, and reversely applying a certain force to take the taper pipe out of the mold, wherein the shrinkage pipe (necking) is completed;
cutting: and cutting waste materials at the two ends and the middle part of the useless rotary shrinkage forming tube blank by adopting laser cutting.
Flanging: the semi-finished product after laser cutting needs to be turned up on the conical surface, and the turned-up characteristic of the product is finished by adopting a punching turned-up (internal stay turned-up) process from inside to outside.
The straight pipe blank can be a seamed pipe or a seamless pipe.
In the method for forming the thin-wall conical tube with the flanging characteristic, two ends or one end of the conical tube are provided with straight sections exceeding 5mm, and the lengths of the straight sections at the two ends can be unequal.
The method for forming the thin-wall conical tube with the flanging characteristic comprises the steps that the maximum outer diameter phi 1 of the conical tube is larger than or equal to 80mm, and the minimum outer diameter is larger than or equal to 40mm.
The method for forming the thin-wall conical tube with the flanging characteristic comprises the steps that the wall thickness of the conical tube is more than or equal to 0.8mm and less than or equal to 2mm.
A method of forming a thin wall tapered tube with a flanging feature as described above, the taper of the tapered tube as described above being between 1 ° and 45 ° (inclusive of 1 ° and 45 °).
The method for forming the thin-wall conical tube with the flanging features comprises the step of forming the conical surface of the conical tube with the flanging features, wherein the number of the flanging features can be one or more.
The invention has the advantages that:
1. the invention can avoid scratching the outer wall of the pipe fitting in the use process, and can ensure the precision and reliability of the size of the part;
2. the invention can avoid scratching the outer wall of the pipe fitting in the use process, ensure the precision and reliability of the size of the part, avoid the defects of wrinkling, buckling, cracking and the like of the pipe fitting and improve the production efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the whole structure of the present invention;
FIG. 3 is a schematic view of a straight tube blank placed into a rotary shrinking mold;
FIG. 4 is a schematic view of a straight tube blank;
FIG. 5 is a schematic diagram of parameters of a cone, wherein phi 1 is the maximum diameter of the cone, phi 2 is the minimum diameter of the cone, alpha is the taper of the cone, L is the straight length of the cone, and H is the height of the cone;
FIG. 6 is a schematic view of an internal high pressure process unit according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of mold closing;
FIG. 8 is a schematic illustration of the feed of the left and right pusher heads, with liquid filling and pressurization in the tube;
FIG. 9 is a schematic view of the mold opening after internal high pressure forming;
FIG. 10 is a schematic view of a tube blank after internal high pressure forming;
FIG. 11 is a schematic view of the tube blank after cutting;
fig. 12 shows the final formed part after flanging.
Reference numerals: the pipe bending machine comprises a 1-frame, a 2-mold fixing seat, a 3-motor fixing seat, a 4-motor, a 5-small driving wheel, a 6-large driving wheel, a 7-driving belt, an 8-rotary shrinkage mold, a 9-top plate, a 10-bottom plate, an 11-supporting rod, a 12-straight pipe blank, a 13-upper fixing plate, a 14-upper mold, a 15-left push head, a 16-right push head, a 17-lower mold, a 18-lower fixing plate, a 19-inner high-pressure formed pipe blank, a 20-cut pipe blank and a 21-flanging, and finally bending the pipe part.
Detailed Description
As shown in fig. 1 to 3, the embodiment specifically discloses a thin-wall conical tube forming die with flanging characteristic and a method thereof, which comprises a frame 1, wherein a die fixing seat 2 is fixedly arranged on the top surface of the frame 1, a motor fixing seat 3 is fixedly arranged below the frame 1, a motor 4 is fixedly arranged on the top surface of the motor fixing seat 3, a small driving wheel 5 is fixedly arranged on an output shaft of the motor 4, a large driving wheel 6 is arranged above the small driving wheel 5, the small driving wheel 5 is connected with the large driving wheel 6 through a driving belt 7, a rotary shrinkage die 8 is rotationally arranged on the die fixing seat 2, and the rotary shrinkage die 8 is fixedly connected with the large driving wheel 6.
As shown in fig. 1, the frame 1 in this embodiment is composed of a top plate 9, a bottom plate 10 and a supporting rod 11, the top plate 9 is located above the bottom plate 10, four corners of the top surface of the bottom plate 10 are fixedly connected with the bottom surface of the top plate 9 through the supporting rod 11, the motor fixing seat 3 is fixedly mounted on the top surface of the bottom plate 10, and the die fixing seat 2 is fixedly mounted on the top surface of the top plate 9. When the device is used, the bottom plate 10 and the top plate 9 are connected through the supporting rods 11, so that the device is more stable in the working process.
When the device is used, as shown in fig. 1 to 4, the motor 4 is electrified, the output shaft of the motor 4 drives the small rotating wheel 5 to rotate clockwise or anticlockwise, the small rotating wheel 5 drives the large rotating wheel 6 to rotate clockwise or anticlockwise through the conveying belt 11, and the large rotating wheel 6 is fixedly connected with the shrinking mold 8, so that the shrinking mold 8 rotates along with the rotation of the motor, a straight pipe blank 12 is inserted into the rotating shrinking mold 8 and applies a certain thrust force F4, at the moment, the straight pipe blank 12 generates axial displacement under the action of the thrust force F4 under the rotation of the shrinking mold 8, the outer wall of the straight pipe blank 12 is completely attached to the inner wall of the shrinking mold 8, after the taper section length reaches the drawing requirement, the axial thrust force of the F4 is stopped, and a certain force is applied reversely to take out the taper pipe from the shrinking mold 8, as shown in fig. 5, the shrinking (necking) procedure is finished;
example one
Selecting a straight pipe blank: as shown in fig. 4, the outer diameter of the straight tube blank 12 is smaller than the minimum outer diameter of the final bent tube part 21 after flanging, and the wall thickness of the straight tube blank 12 is greater than or equal to the wall thickness of the final bent tube part 21 after flanging, and the straight tube blank 12 can be a seamed tube or a seamless tube;
placing into an internal high-pressure die: as shown in fig. 6, the straight pipe blank 12 is placed in an inner high pressure forming die, typically a lower die 5;
and (3) die assembly: as shown in fig. 7, the upper die 14 moves downward, including the upper die 14 and the upper fixing plate 13, until the upper die 14 and the lower die 5 are completely closed, clamping the straight pipe blank 12 between the upper die 14 and the lower die 5;
pushing head feeding: as shown in fig. 8, the left push head 15 and the right push head 16 move along the axis of the straight line segments at the two ends of the straight pipe towards the inside direction of the mold, so that the two ends of the straight pipe blank 12 are clamped between the mold and the push head, the left end of the straight pipe blank 12 is clamped between the upper mold 14, the lower mold 5 and the left push head 15, and the right end of the straight pipe blank 12 is clamped between the upper mold 14, the lower mold 5 and the right push head 16, so that the sealing effect at the two ends of the straight pipe blank 12 is realized;
filling liquid and pressurizing: as shown in fig. 8, a certain clamping force F1 is applied to the dies to tightly attach the upper die 14 and the lower die 5, and certain axial forces F2 and F3 are applied to the left push head 15 and the right push head 16 to tightly attach the two ends of the straight tube blank 12 to the dies, so that a closed space is formed inside the straight tube blank 12; the hydraulic system fills liquid into the straight pipe blank 12 through a channel in the pushing head, gradually increases the liquid pressure, and the bending part of the straight pipe blank 7 is gradually deformed and stuck to a die under the action of the liquid pressure to form an inner high-pressure formed pipe blank 19;
opening the die and taking the tube: after the die opening, as shown in fig. 9, the inner high-pressure formed tube blank 19 is taken out, as shown in fig. 10.
Cutting: cutting both ends and the middle part of the useless inner high pressure formed tube blank 19 to obtain a cut tube blank 20 as shown in fig. 11;
flanging: the cut tube blank 9 is subjected to a press flanging (inner support flanging) process to finish the flanging characteristic of the product from inside to outside, namely, a final bent tube part 21 after flanging, as shown in fig. 12.
Example two
Selecting a straight pipe blank: as shown in fig. 4, the outer diameter of the straight tube blank 12 is equal to the maximum outer diameter of the final bent tube part 21 after flanging, and the wall thickness of the straight tube blank 12 is equal to or less than the wall thickness of the final bent tube part 21 after flanging, and the straight tube blank 12 can be a seamed tube or a seamless tube.
Starting the machine: as shown in fig. 1 and fig. 1, the motor 15 is firstly energized, the motor 15 drives the small rotating wheel 18 to rotate clockwise or anticlockwise, the small rotating wheel 18 drives the large rotating wheel 17 to rotate clockwise or anticlockwise through the conveyor belt 11, and the large rotating wheel 17 is fixedly connected with the rotary shrinkage die 14, so that the rotary shrinkage die 14 also rotates along with the rotation of the motor 15.
Spin-down (necking): as shown in fig. 7, the straight tube blank 12 is inserted into the rotating shrinking mold 14, a certain thrust force F4 is applied, at this time, the straight tube blank 12 generates axial displacement under the action of the rotation of the shrinking mold 14, the outer wall of the straight tube blank 12 is completely attached to the inner wall of the shrinking mold 14, after the length of the taper section reaches the drawing requirement, the axial thrust force of F1 is stopped, and a certain force is applied reversely to take the taper tube out of the shrinking mold 14, as shown in fig. 5, the tube blank 19 is formed by shrinking, at this time, the shrinking (necking) process is completed;
cutting: the waste material at the two ends and the middle part of the useless spin-down forming tube blank is cut by laser cutting to obtain a cut tube blank 20, as shown in fig. 11.
Flanging: the cut tube blank 20 is subjected to a press flanging (inner support flanging) process to finish the flanging characteristic of the product from inside to outside, namely, a final bent tube part 21 after flanging, as shown in fig. 12.
The foregoing description of the embodiments of the present invention has been presented in conjunction with the following drawings, but is not to be construed as limiting the scope of the invention, which is defined by the detailed description of the invention.
Claims (10)
1. A thin-wall conical tube forming die with flanging characteristic is characterized in that: including frame (1), its characterized in that: the top surface fixed mounting mould fixing base (2) of frame (1), the below fixed mounting motor fixing base (3) of frame (1), the top surface fixed mounting motor (4) of motor fixing base (3), the output shaft fixed mounting little drive wheel (5) of motor (4), the top of little drive wheel (5) is equipped with big drive wheel (6), little drive wheel (5) are connected through drive belt (7) with big drive wheel (6), mould fixing base (2) rotation sets up and revolves shrink mould (8), revolves shrink mould (8) and big drive wheel (6) fixed connection.
2. The thin-walled conical tube forming die with flanging features of claim 1, wherein: the machine frame (1) comprises a top plate (9), a bottom plate (10) and a supporting rod (11), wherein the top plate (9) is positioned above the bottom plate (10), four corners of the top surface of the bottom plate (10) are fixedly connected with the bottom surface of the top plate (9) through the supporting rod (11), the motor fixing seat (3) is fixedly arranged on the top surface of the bottom plate (10), and the die fixing seat (2) is fixedly arranged on the top surface of the top plate (9).
3. A method for forming a thin-wall conical tube with flanging features, which is characterized in that the forming method comprises the following steps: selecting a straight tube blank, placing the straight tube blank into an inner high-pressure die, closing the die, feeding by a pushing head, filling liquid and pressurizing, taking the tube, cutting and flanging to form the tube blank into a conical tube with a straight section.
4. A forming method of a thin-wall conical tube with flanging features is characterized in that the forming method II comprises the following steps: the method comprises the steps of selecting a straight tube blank, placing one end of the straight tube blank into a rotary shrinking die, axially feeding the tube blank, taking the tube, cutting and flanging, so that the tube blank is formed into a conical tube with a straight section.
5. A method of forming a thin-walled conical tube with a flanging feature as claimed in claim 3 or 4, wherein: the straight pipe blank can be a seamed pipe or a seamless pipe.
6. A method of forming a thin-walled conical tube with a flanging feature as claimed in claim 3 or 4, wherein: the two ends or one end of the conical tube are provided with straight sections exceeding 5mm, and the lengths of the straight sections at the two ends can be unequal.
7. A method of forming a thin-walled conical tube with a flanging feature as claimed in claim 3 or 4, wherein: the maximum outer diameter phi 1 of the conical tube is more than or equal to 80mm, and the minimum outer diameter phi is more than or equal to 40mm.
8. A method of forming a thin-walled conical tube with a flanging feature as claimed in claim 3 or 4, wherein: the wall thickness of the conical tube is more than or equal to 0.8mm and less than or equal to 2mm.
9. A method of forming a thin-walled conical tube with a flanging feature as claimed in claim 3 or 4, wherein: the taper of the conical tube is between 1 and 45 degrees.
10. A method of forming a thin-walled conical tube with a flanging feature as claimed in claim 3 or 4, wherein: the conical surface of the conical tube is provided with flanging features, and the number of the flanging features can be one or a plurality of the flanging features.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310404963.7A CN116511327A (en) | 2023-04-17 | 2023-04-17 | Thin-wall conical tube forming die with flanging characteristic and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310404963.7A CN116511327A (en) | 2023-04-17 | 2023-04-17 | Thin-wall conical tube forming die with flanging characteristic and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116511327A true CN116511327A (en) | 2023-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310404963.7A Pending CN116511327A (en) | 2023-04-17 | 2023-04-17 | Thin-wall conical tube forming die with flanging characteristic and method |
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| Country | Link |
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| CN (1) | CN116511327A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117019960A (en) * | 2023-08-16 | 2023-11-10 | 中国航发贵州黎阳航空动力有限公司 | Weld-free forming method of large-size ultrathin-wall superalloy sealing sheet |
-
2023
- 2023-04-17 CN CN202310404963.7A patent/CN116511327A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117019960A (en) * | 2023-08-16 | 2023-11-10 | 中国航发贵州黎阳航空动力有限公司 | Weld-free forming method of large-size ultrathin-wall superalloy sealing sheet |
| CN117019960B (en) * | 2023-08-16 | 2024-04-09 | 中国航发贵州黎阳航空动力有限公司 | Weld-free forming method of large-size ultrathin-wall superalloy sealing sheet |
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