CN112246970A - Stamping forming method for radiating fin and radiating fin manufactured by stamping forming method - Google Patents

Stamping forming method for radiating fin and radiating fin manufactured by stamping forming method Download PDF

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Publication number
CN112246970A
CN112246970A CN202011003630.6A CN202011003630A CN112246970A CN 112246970 A CN112246970 A CN 112246970A CN 202011003630 A CN202011003630 A CN 202011003630A CN 112246970 A CN112246970 A CN 112246970A
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CN
China
Prior art keywords
radiating fin
movable die
heat sink
material belt
mounting
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.)
Pending
Application number
CN202011003630.6A
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Chinese (zh)
Inventor
万少兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Shuangzi Electronic Technology Co ltd
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Kunshan Shuangzi Electronic Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by Kunshan Shuangzi Electronic Technology Co ltd filed Critical Kunshan Shuangzi Electronic Technology Co ltd
Priority to CN202011003630.6A priority Critical patent/CN112246970A/en
Publication of CN112246970A publication Critical patent/CN112246970A/en
Pending legal-status Critical Current

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    • 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
    • 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
    • B21D35/001—Shaping combined with punching, e.g. stamping and perforating
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

The invention discloses a stamping forming method of a radiating fin and the radiating fin manufactured by the same, belonging to the technical field of radiating fins. A stamping forming method for a radiating fin comprises the following steps: s1: the material belt is arranged above the fixed die, the material belt is sunk to be in contact with the fixed die through the lifting mechanism, the movable die sinks to drive the stamping die on the movable die to stamp the concave part, and then the movable die moves upwards; the invention also discloses a radiating fin, wherein the middle part of the radiating fin is provided with an inner concave part, the middle part of the inner concave part is provided with a square hole, the side edge of one side of the radiating fin is provided with a first step groove, the side edge of the other side of the radiating fin is provided with a strip-shaped groove, the first step groove and the strip-shaped groove are integrally formed with a mounting piece, and the mounting piece is provided with a fastening piece; the radiating fin is punched through the working procedures of blanking, punching, bending, cutting and the like, and the radiating fin is effectively attached to the surface of the component by using the fastener, so that not only the fastener is conveniently aligned with the mounting hole in the fastening process, but also the fastener is conveniently detached from the component.

Description

Stamping forming method for radiating fin and radiating fin manufactured by stamping forming method
Technical Field
The invention relates to the technical field of radiating fins, in particular to a radiating fin punch forming method and a radiating fin manufactured by the same.
Background
In the field of electronic products for computers or automobile parts, in order to improve data processing efficiency, high-performance semiconductor elements or mechanical parts are often used, local heat generation generated by these elements is called hot spots, and the existence of the hot spots can generate heat to cause damage of the elements and the like.
In the prior art, in order to improve the production efficiency of the radiating fins, the radiating fins meeting the process requirements are usually punched out in a continuous die mode, and the basic process flow is roughly divided into the working procedures of blanking, punching, bending, cutting and the like. The existing radiating fin is better assembled, a mounting piece for mounting is usually reserved on a radiating fin body, a mounting hole is formed in the mounting piece, and the radiating fin is fixed on a component through extra fasteners such as screws. Therefore often need align the mounting hole on the mounting piece with the mounting hole on the components and parts when installing the fin, then it is fixed through the fastener, and fasteners such as traditional screw easily exist the difficult problem of alignment when the fastening, consequently this process mishandling can lead to the fin to be difficult to effectively laminate on the surface of components and parts, causes the heat that the heat-generating body generated not to obtain effectual diffusion.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, when a radiating fin is installed, the installing hole on the installing fin is often aligned with the installing hole on a component and then fixed through a fastener, and the traditional fasteners such as screws are easy to align and are difficult to fix, so that the radiating fin is difficult to be effectively attached to the surface of the component due to improper treatment in the process, and the heat generated by a heating body cannot be effectively diffused.
In order to achieve the purpose, the invention adopts the following technical scheme:
a stamping forming method for a radiating fin comprises the following steps:
s1: the material belt is arranged above the fixed die, the material belt is sunk to be in contact with the fixed die through the lifting mechanism, the movable die sinks to drive the stamping die on the movable die to stamp the concave part, and then the movable die moves upwards;
s2: the material belt moves forwards through the conveying mechanism, the movable die moves downwards to drive the punching die on the movable die to punch a square hole, a first step groove, a strip-shaped groove, a second step groove and heat dissipation holes in the material belt in sequence, mounting pieces are reserved on the first step groove and the strip-shaped groove respectively, and then the movable die moves upwards;
s3: the material belt continuously moves forwards, the movable die moves downwards and drives a bending die on the movable die to punch the mounting piece on the material belt into a right-angle bending shape, and then the movable die moves upwards;
s4: the material belt continuously moves forwards, the movable die moves downwards and drives the cutting film on the movable die to cut off the formed radiating fins from the material belt;
s5: and (4) mounting a fastener on the mounting sheet, and finishing the manufacturing of the heat radiating sheet.
Preferably, in step S2, the mounting holes are punched on the mounting sheet at the same time.
A radiating fin is provided with an inner concave part in the middle, a square hole is formed in the middle of the inner concave part, a first stepped groove is formed in one side edge of the radiating fin, a strip-shaped groove is formed in the other side edge of the radiating fin, mounting pieces are integrally formed on the first stepped groove and the strip-shaped groove, a fastening piece is arranged on each mounting piece, and a second stepped groove adjacent to the strip-shaped groove is further formed in the radiating fin; and a plurality of radiating holes distributed sporadically are formed in the length direction of the radiating fin.
Preferably, a gap is reserved between the mounting piece and the radiating fin main body, and the mounting piece is provided with a mounting hole.
Preferably, the mounting plate is fixedly arranged on the side wall of the radiating fin in a right-angled folded manner.
Preferably, the heat dissipation holes are arranged on two sides of the square hole.
Preferably, the fastener comprises a stud, a conical barrel and a retraction ring, the tail part of the stud is arranged in the conical barrel, and an expansion disc is arranged at one end of the stud arranged in the conical barrel; the bar hole of equipartition is seted up to the lateral wall of a toper section of thick bamboo, the diapire of a toper section of thick bamboo slides and is provided with the expansion ring, receive and release the ring setting and correspond in the periphery of a toper section of thick bamboo and with the expansion ring position, the last connecting block that has set firmly of expansion ring, the connecting block passes the bar hole and with receive and release the ring solid even, the expansion disc is kept away from the one end of double-screw bolt and is passed through the spliced pole and link to each other with the.
Preferably, the bottom wall of the conical cylinder is fixedly provided with a sliding column, the telescopic ring is arranged on the sliding column in a sliding manner, a return spring is fixedly arranged between the telescopic ring and the bottom wall of the conical cylinder, and the return spring is sleeved on the outer wall of the sliding column.
Preferably, one end of the sliding column, which is far away from the conical cylinder, is fixedly provided with a limiting ring.
Preferably, one end of the connecting column, which is far away from the expansion disc, is fixedly provided with a columnar clamping column, and the side wall of the telescopic ring is provided with an annular clamping groove matched with the columnar clamping column.
Compared with the prior art, the invention provides a cooling fin punch forming method and a cooling fin manufactured by the same, and the cooling fin has the following beneficial effects:
1. according to the invention, the radiating fin is punched through the working procedures of blanking, punching, bending, cutting and the like, and the radiating fin is effectively attached to the surface of the component by using the fastener, so that not only is the fastener aligned with the mounting hole conveniently in the fastening process, but also the fastener is convenient to detach from the component.
2. In the invention, the concave part is arranged, so that the heat radiating fins are effectively attached to the components by the concave part, and the heat is effectively diffused.
3. In the invention, by arranging the fastener, the conical cylinder is driven to expand by the expansion disc in the process of screwing the stud into the mounting hole on the component, so that the conical cylinder is matched with the mounting hole; in addition, when the fastener needs to be removed from the mounting hole, the stud can be reversely screwed out of the mounting hole, and the expanded conical barrel is tightened by the retraction ring so as to be convenient for the conical barrel to withdraw from the mounting hole, so that the fastener is convenient to mount and remove.
4. In the invention, the sliding column is arranged, the telescopic ring can move along the sliding column under the driving of the connecting column so as to realize telescopic movement of the telescopic ring, the telescopic ring can stretch or compress the return spring in the process of moving along the sliding column, and the return spring is convenient for the return of the telescopic ring; and the position of the telescopic ring is convenient to limit due to the existence of the limit ring at the end part of the sliding column.
5. According to the invention, the columnar clamping columns are arranged on the connecting column, the annular clamping grooves are formed in the side walls of the telescopic rings, and the connecting column can rotate in the annular clamping grooves through the columnar clamping columns under the driving of the studs and push the telescopic rings to move on the sliding columns.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a rear side view of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic structural view of the fastener of the present invention;
FIG. 4 is a cutaway schematic view of FIG. 3 of the present invention;
FIG. 5 is a schematic structural view of portion A of FIG. 4 according to the present invention;
FIG. 6 is a front view of FIG. 4 of the present invention;
FIG. 7 is a schematic view of the structure of portion B of the boss 6 of the present invention;
fig. 8 is a schematic structural diagram of the tape transport of the present invention.
In the figure: 1. an inner concave portion; 2. a square hole; 3. a first step groove; 4. a strip-shaped groove; 5. mounting a sheet; 6. a fastener; 6-1, a stud; 6-2, a conical cylinder; 6-3, a receiving and releasing ring; 7. a second stepped groove; 8. heat dissipation holes; 9. a gap; 10. mounting holes; 11. an expansion disc; 12. a strip-shaped hole; 13. a telescopic ring; 14. connecting blocks; 15. connecting columns; 16. a sliding column; 17. a return spring; 18. a limiting ring; 19. a columnar clamping column; 20. and an annular clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1 to 8, a method for press forming a heat sink includes the steps of:
s1: the material belt is arranged above the fixed die, the material belt is sunk to be in contact with the fixed die through the lifting mechanism, the movable die sinks to drive the stamping die on the movable die to stamp the inner concave part 1, and then the movable die moves upwards;
s2: the material belt moves forwards through the conveying mechanism, the movable die moves downwards to drive the punching die on the movable die to punch a square hole 2, a first step groove 3, a strip groove 4, a second step groove 7 and a heat dissipation hole 8 in the material belt in sequence, installation pieces 5 are reserved on the first step groove 3 and the strip groove 4 respectively, and then the movable die moves upwards;
s3: the material belt continuously moves forwards, the movable die moves downwards and drives a bending die on the movable die to punch the mounting piece 5 on the material belt into a right-angle bending shape, and then the movable die moves upwards;
s4: the material belt continuously moves forwards, the movable die moves downwards and drives the cutting film on the movable die to cut off the formed radiating fins from the material belt;
s5: and (5) mounting a fastener 6 on the mounting sheet 5, and finishing the manufacturing of the radiating fin.
In step S2, the mounting piece 5 is simultaneously punched with the mounting hole 10.
The invention also discloses a radiating fin, wherein the middle part of the radiating fin is provided with an inner concave part 1, the middle part of the inner concave part 1 is provided with a square hole 2, the side edge of one side of the radiating fin is provided with a first step groove 3, the side edge of the other side of the radiating fin is provided with a strip-shaped groove 4, the first step groove 3 and the strip-shaped groove 4 are integrally formed with a mounting piece 5, the mounting piece 5 is provided with a fastener 6, and the radiating fin is also provided with a second step groove 7 adjacent to the strip-shaped groove 4; a plurality of heat dissipation holes 8 distributed sporadically are formed along the length direction of the heat dissipation fin.
A gap 9 is reserved between the mounting piece 5 and the radiating fin main body, and a mounting hole 10 is formed in the mounting piece 5.
The mounting piece 5 is specifically fixed on the side wall of the radiating fin in a right-angled folded manner.
The heat dissipation holes 8 are arranged at two sides of the square hole 2.
The fastener 6 comprises a stud 6-1, a conical barrel 6-2 and a retraction ring 6-3, the tail part of the stud 6-1 is arranged in the conical barrel 6-2, and an expansion disc 11 is arranged at one end of the stud 6-1 arranged in the conical barrel 6-2; the side wall of the conical cylinder 6-2 is provided with uniformly distributed strip-shaped holes 12, the bottom wall of the conical cylinder 6-2 is provided with a telescopic ring 13 in a sliding manner, the retraction ring 6-3 is arranged at the periphery of the conical cylinder 6-2 and corresponds to the telescopic ring 13 in position, a connecting block 14 is fixedly arranged on the telescopic ring 13, the connecting block 14 penetrates through the strip-shaped holes 12 and is fixedly connected with the retraction ring 6-3, one end of the expansion disc 11, far away from the stud 6-1, is rotatably connected with the telescopic ring 13 through a connecting column 15, and the conical cylinder 6-2 is driven to expand through the expansion disc 11 in the process that the stud 6-1 is screwed into a mounting hole in a component, so that the conical cylinder 6-2 is matched with the mounting hole in the; in addition, when the fastener 6 needs to be removed from the mounting hole of the component, the stud 6-1 can be reversely screwed out of the mounting hole of the component, and the expanded conical barrel 6-2 is tightened by the retraction ring 6-3 so as to facilitate the conical barrel 6-2 to withdraw from the mounting hole of the component, so that the fastener 6 is convenient to install and remove.
The bottom wall of the conical cylinder 6-2 is fixedly provided with a sliding column 16, the telescopic ring 13 is arranged on the sliding column 16 in a sliding mode, a return spring 17 is fixedly arranged between the telescopic ring 13 and the bottom wall of the conical cylinder 6-2, the return spring 17 is sleeved on the outer wall of the sliding column 16, the telescopic ring 13 can move along the sliding column 16 under the driving of the connecting column 15, telescopic movement of the telescopic ring 13 is achieved, the telescopic ring 13 can stretch or compress the return spring 17 in the moving process along the sliding column 16, and the return spring 17 is convenient to reset of the telescopic ring 13.
A limiting ring 18 is fixedly arranged at one end of the sliding column 16 far away from the conical barrel 6-2, and the position of the telescopic ring 13 is conveniently limited by the limiting ring 18.
One end of the connecting column 15, which is far away from the expansion disc 11, is fixedly provided with a cylindrical clamping column 19, the side wall of the telescopic ring 13 is provided with an annular clamping groove 20 matched with the cylindrical clamping column 19, and under the driving of the stud 6-1, the connecting column 15 can rotate in the annular clamping groove 20 through the cylindrical clamping column 19 and push the telescopic ring 13 to move on the sliding column 16.
The working principle is as follows: the material belt is arranged above the fixed die, the material belt is sunk to be in contact with the fixed die through the lifting mechanism, the movable die sinks to drive the stamping die on the movable die to stamp the inner concave part 1, and then the movable die moves upwards; the material belt moves forwards through the conveying mechanism, the movable die moves downwards to drive the punching die on the movable die to punch a square hole 2, a first step groove 3, a strip groove 4, a second step groove 7 and a heat dissipation hole 8 in the material belt in sequence, installation pieces 5 are reserved on the first step groove 3 and the strip groove 4 respectively, and then the movable die moves upwards; the material belt continuously moves forwards, the movable die moves downwards and drives a bending die on the movable die to punch the mounting piece 5 on the material belt into a right-angle bending shape, and then the movable die moves upwards; the material belt continuously moves forwards, the movable die moves downwards and drives the cutting film on the movable die to cut off the formed radiating fins from the material belt; mounting a fastener 6 on the mounting sheet 5, and finishing the manufacturing of the radiating fin;
when the heat sink is mounted on a component, the heat sink is tightly attached to the component by the concave part 1, since the fastening member 6 is disposed on the mounting hole 10 of the mounting plate 5, the tapered tube 6-2 of the fastening member 6 can be first inserted into the mounting hole of the component, then the stud 6-1 is screwed into the mounting hole on the component, the conical barrel 6-2 is pushed to open by the expansion disc 11 in the process that the stud 6-1 is screwed into the mounting hole on the component, the conical cylinder 6-2 is tightly expanded in the mounting hole of the component, meanwhile, the expansion disc 11 drives the telescopic ring 13 to slide on the sliding column 16 through the connecting column 15, and the telescopic ring 13 further drives the receiving and releasing ring 6-3 to move on the outer wall of the conical cylinder 6-2 through the connecting block 14, so that the conical cylinder 6-2 is conveniently expanded to be attached to the mounting hole of the component;
when the fastener 6 is detached from the component, the stud 6-1 can be screwed in reversely, the stud 6-1 drives the expansion disc 11 to move towards the outside of the mounting hole in the component, the expansion disc 11 further drives the telescopic ring 13 to move along the sliding column 16 through the connecting column 15, and the telescopic ring 13 further drives the retraction ring 6-3 to tighten the conical cylinder 6-2, so that the conical cylinder 6-2 can be conveniently discharged from the mounting hole in the component.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. A method for stamping and riveting a radiating fin is characterized by comprising the following steps:
s1: the material belt is arranged above the fixed die, the material belt is sunk to be in contact with the fixed die through the lifting mechanism, the movable die sinks to drive the stamping die on the movable die to stamp the concave part (1), and then the movable die moves upwards;
s2: the material belt moves forwards through the conveying mechanism, the movable die moves downwards to drive the punching die on the movable die to punch a square hole (2), a first step groove (3), a strip-shaped groove (4), a second step groove (7) and heat dissipation holes (8) in the material belt in sequence, installation pieces (5) are reserved on the first step groove (3) and the strip-shaped groove (4) respectively, and then the movable die moves upwards;
s3: the material belt continues to move forwards, the movable die moves downwards and drives a bending die on the movable die to punch the mounting sheet (5) on the material belt into a right-angle folding shape, and then the movable die moves upwards;
s4: the material belt continuously moves forwards, the movable die moves downwards and drives the cutting film on the movable die to cut off the formed radiating fins from the material belt;
s5: and (3) mounting a fastener (6) on the mounting sheet (5) to finish manufacturing the radiating fin.
2. A method for stamping and riveting a heat sink as claimed in claim 1, wherein in step S2, the mounting holes (10) are stamped simultaneously on the mounting plate (5).
3. A heat sink fin manufactured by the method of claims 1-2, wherein the heat sink fin is provided with an inner concave portion (1) in the middle, a square hole (2) is formed in the middle of the inner concave portion (1), a first stepped groove (3) is formed in one side edge of the heat sink fin, a strip-shaped groove (4) is formed in the other side edge of the heat sink fin, a mounting piece (5) is integrally formed on the first stepped groove (3) and the strip-shaped groove (4), a fastening piece (6) is arranged on the mounting piece (5), and a second stepped groove (7) adjacent to the strip-shaped groove (4) is formed in the heat sink fin; and a plurality of radiating holes (8) distributed sporadically are formed in the length direction of the radiating fin.
4. A heat sink as claimed in claim 3, wherein a gap (9) is provided between the mounting plate (5) and the heat sink body, and the mounting plate (5) is provided with mounting holes (10).
5. A heat sink as claimed in claim 4, wherein the mounting tabs (5) are fixedly attached to the side walls of the heat sink in a right-angled fold.
6. A heat sink according to claim 3 or 5, wherein the heat dissipation holes (8) are placed on both sides of a square hole (2).
7. The heat sink as recited in claim 6, wherein the fastener (6) comprises a stud (6-1), a tapered cylinder (6-2) and a retractable ring (6-3), the tail part of the stud (6-1) is arranged in the tapered cylinder (6-2), and one end of the stud (6-1) arranged in the tapered cylinder (6-2) is provided with an expansion disc (11); the utility model discloses a screw bolt expansion disc, including a toper section of thick bamboo (6-2), the lateral wall of a toper section of thick bamboo (6-2) is seted up the bar hole (12) of equipartition, the diapire of a toper section of thick bamboo (6-2) slides and is provided with expansion ring (13), receive and release ring (6-3) set up in the periphery of a toper section of thick bamboo (6-2) and correspond with expansion ring (13) position, connecting block (14) have set firmly on expansion ring (13), connecting block (14) pass bar hole (12) and link firmly with receive and release ring (6-3), the one end that double-screw bolt (6-1) was kept away from in expansion disc (11) is passed through spliced pole (15).
8. The heat sink as claimed in claim 7, wherein a sliding column (16) is fixed to a bottom wall of the tapered cylinder (6-2), the telescopic ring (13) is slidably disposed on the sliding column (16), a return spring (17) is fixed between the telescopic ring (13) and the bottom wall of the tapered cylinder (6-2), and the return spring (17) is sleeved on an outer wall of the sliding column (16).
9. The heat sink as claimed in claim 8, wherein a stop ring (18) is fixed to the end of the sliding column (16) remote from the conical cylinder (6-2).
10. The heat sink as claimed in claim 7, wherein a cylindrical clip (19) is fixedly disposed at an end of the connecting column (15) away from the expansion plate (11), and an annular clip groove (20) matching with the cylindrical clip (19) is disposed on a side wall of the expansion ring (13).
CN202011003630.6A 2020-09-22 2020-09-22 Stamping forming method for radiating fin and radiating fin manufactured by stamping forming method Pending CN112246970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011003630.6A CN112246970A (en) 2020-09-22 2020-09-22 Stamping forming method for radiating fin and radiating fin manufactured by stamping forming method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011003630.6A CN112246970A (en) 2020-09-22 2020-09-22 Stamping forming method for radiating fin and radiating fin manufactured by stamping forming method

Publications (1)

Publication Number Publication Date
CN112246970A true CN112246970A (en) 2021-01-22

Family

ID=74232840

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011003630.6A Pending CN112246970A (en) 2020-09-22 2020-09-22 Stamping forming method for radiating fin and radiating fin manufactured by stamping forming method

Country Status (1)

Country Link
CN (1) CN112246970A (en)

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