CN112317610B - Sheet metal forging and thinning process - Google Patents
Sheet metal forging and thinning process Download PDFInfo
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- CN112317610B CN112317610B CN202010967703.7A CN202010967703A CN112317610B CN 112317610 B CN112317610 B CN 112317610B CN 202010967703 A CN202010967703 A CN 202010967703A CN 112317610 B CN112317610 B CN 112317610B
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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
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Abstract
The invention discloses a metal plate forging and thinning process, which comprises the following steps of determining an area to be forged and thinned on a metal plate; punching the area to be thinned for multiple times on at least one side of the area to be thinned to form a plurality of punching grooves, wherein the depth of the punching grooves in multiple numbers is gradually reduced from one end of the area to be thinned to the other end; and stamping and shaping the surface of the area to be thinned, which is provided with the stamping groove, so that the surface of the area to be thinned, which is provided with the stamping groove, is an inclined surface. This sheet metal forges thin technology can realize the thin operation of forging to the sheet metal that thickness is thicker with little tonnage punching press lathe for the firm need not to purchase, uses large-tonnage punching press lathe, does benefit to and saves the acquisition cost, improves production efficiency, thereby reduction in production cost, in addition, can also ensure the machining precision of product, makes the product possess higher quality.
Description
Technical Field
The invention relates to the technical field of metal plate processing, in particular to a metal plate forging and thinning process.
Background
In the technical field of sheet metal processing, a local area of a sheet metal with the same thickness needs to be forged to be thin sometimes, so that the thickness of the local area gradually changes towards one direction, at present, 80% of professional stamping factories in the market only have a small-tonnage stamping machine tool below 200 tons, and when the sheet metal is forged to be thin, the problem that the small-tonnage stamping machine tool cannot work and produce due to insufficient stamping force is often faced. Therefore, a press machine of 600 tons or more is required for forging a thick (0.6 mm or more) metal plate, but the use of a press machine of 600 tons or more inevitably lowers the production efficiency of parts (SPM limits the capacity of a large-tonnage press machine), increases the cost of parts due to the large power of the large-tonnage press machine, and is not suitable for a small-sized processing plant because the large-tonnage press machine is purchased at a high cost. If a small-tonnage stamping machine tool is forced to forge a metal plate with a thicker thickness according to the existing stamping process, the metal material is hardened, and when the stroke of the stamping machine cannot be completed, a gap exists when the die is closed, so that the machining precision cannot meet the requirement.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a low-cost metal plate forging and thinning process.
In order to solve the technical problems, the invention adopts the technical scheme that: a metal plate forging and thinning process comprises the following steps,
determining an area to be thinned on a metal plate;
punching the area to be thinned for multiple times on at least one side of the area to be thinned to form a plurality of punching grooves, wherein the depth of the punching grooves in multiple numbers is gradually reduced from one end of the area to be thinned to the other end;
and stamping and shaping the surface of the area to be thinned, which is provided with the stamping groove, so that the surface of the area to be thinned, which is provided with the stamping groove, is an inclined surface.
Furthermore, the number of the stamping grooves positioned on the same side of the area to be thinned is more than or equal to three.
Furthermore, the thickness of the metal plate is 0.6mm, and the difference between the depths of two adjacent stamping grooves in the plurality of stamping grooves on the same side of the area to be thinned is 0.15mm.
Furthermore, when the area to be thinned is punched for multiple times to form a plurality of punching grooves, the latter punching groove is formed in the former punching groove.
Furthermore, when the area to be thinned is punched for multiple times to form a plurality of punching grooves, one side of the next punching groove close to the previous punching groove is formed.
Furthermore, the method further comprises the step of bending the region to be forged and thinned after the surface of the region to be forged, which is provided with the stamping groove, is stamped and shaped.
Further, the area to be thinned is arranged close to the edge of the metal plate.
Further, the thickness of the edge position of the metal plate is smaller than the thickness of other areas of the metal plate.
The invention has the beneficial effects that: this sheet metal forges thin technology can realize the thin operation of forging to the thicker sheet metal of thickness with little tonnage punching press lathe for the producer need not to purchase, uses big tonnage punching press lathe, does benefit to and saves acquisition cost, improves production efficiency, thereby reduction in production cost, in addition, can also ensure the machining precision of product, makes the product possess higher quality.
Drawings
FIG. 1 is a schematic flow chart of a sheet metal forging process according to a first embodiment of the present invention;
fig. 2 is a schematic flow chart of a sheet metal forging and thinning process according to a second embodiment of the present invention.
Description of reference numerals:
1. a metal plate;
2. a first stamping groove;
3. a second stamping groove;
4. a third stamping groove;
5. a fourth stamping groove;
6. a bevel.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 and 2, a sheet metal forging process includes the following steps,
determining an area to be thinned on the metal plate 1;
punching the area to be thinned for multiple times on at least one side of the area to be thinned to form a plurality of punching grooves, wherein the depth of the punching grooves in multiple numbers is gradually reduced from one end of the area to be thinned to the other end;
and (3) performing stamping reshaping on the surface of the area to be thinned, which is provided with the stamping groove, so that the surface of the area to be thinned, which is provided with the stamping groove, is an inclined surface 6.
From the above description, the beneficial effects of the present invention are: this sheet metal 1 forges thin technology can realize the thin operation of forging to thicker sheet metal 1 with little tonnage punching press lathe for the producer need not to purchase, uses big tonnage punching press lathe, does benefit to and saves acquisition cost, improves production efficiency, thereby reduction in production cost, in addition, can also ensure the machining precision of product, makes the product possess higher quality.
Furthermore, the number of the stamping grooves positioned on the same side of the area to be thinned is more than or equal to three.
As can be seen from the above description, the number of the stamping grooves is reasonably set, so that the inclined plane 6 can be conveniently formed in the area needing to be subjected to thin forging, namely the thin forging of the metal plate 1 is facilitated.
Further, the thickness of the metal plate 1 is 0.6mm, and the difference between the depths of two adjacent punching grooves in the plurality of punching grooves positioned on the same side of the area to be thinned is 0.15mm.
Furthermore, when the area to be thinned is punched for multiple times to form a plurality of punching grooves, the latter punching groove is formed in the former punching groove.
Furthermore, when the area to be thinned is punched for multiple times to form a plurality of punching grooves, one side of the next punching groove close to the previous punching groove is formed.
As can be appreciated from the above description, the particular steps of multiple stamping to form multiple stamped grooves can be selected as desired.
Furthermore, the method further comprises the step of bending the region to be forged and thinned after the surface of the region to be forged, which is provided with the stamping groove, is stamped and shaped.
As can be seen from the above description, the bending part is required for some products, and the bending is easier after the metal plate 1 is forged to be thin.
Further, the area to be thinned is arranged close to the edge of the metal plate 1.
As can be seen from the above description, the location of the region to be forged on the metal plate 1 can be set as desired.
Further, the thickness of the edge position of the metal plate material 1 is smaller than the thickness of other areas of the metal plate material 1.
Example one
Referring to fig. 1, a first embodiment of the present invention is: a metal plate forging and thinning process comprises the following steps,
s1, determining an area needing to be thinned on a metal plate 1;
s2, punching the area to be forged for multiple times on at least one side of the area to be forged to form a plurality of punching grooves, wherein the depths of the punching grooves in multiple numbers are gradually reduced from one end of the area to be forged to the other end;
and S3, stamping and shaping the surface of the area to be thinned, which is provided with the stamping groove, so that the surface of the area to be thinned, which is provided with the stamping groove, is an inclined surface 6.
In this embodiment, when the region to be thinned is punched multiple times to form a plurality of punching grooves, the latter punching groove is formed in the former punching groove. Specifically, a stepped punching groove is formed in the metal plate material 1 at each punching. More specifically, the thickness of the metal plate 1 is 0.6mm, and the difference between the depths of two adjacent punching grooves in the plurality of punching grooves on the same side of the area to be thinned is 0.15mm. Although the number of the punching grooves of the region to be thinned is two in this embodiment, in other embodiments, when the number of the punching grooves located on the same side of the region to be thinned is greater than or equal to three, optionally, the difference between the depths of any two adjacent punching grooves is equal, and the difference between the widths of any two adjacent punching grooves is equal.
After the surface of the region to be thinned with the punching groove is subjected to punching and shaping (i.e., step S3), the method further includes step S4 of bending the region to be thinned. Some products need to be provided with a bending part, and the bending part corresponds to a region needing to be forged, such as a metal bracket of a screen of a notebook computer, etc., under the condition that the bending part needs to be provided, if the sheet metal 1 needs to be forged and bent for one-step forming, then a large-tonnage punching machine tool needs to be used, but after the sheet metal 1 is forged and thinned, the forging and bending processes of the sheet metal 1 can be realized on a small-tonnage punching machine tool.
Optionally, the area to be thinned is disposed near the edge of the metal plate 1, and the thickness of the edge of the metal plate 1 is smaller than the thickness of the other areas of the metal plate 1.
Referring to fig. 1, in detail, when the notebook computer screen metal bracket is processed by using the sheet metal 1 forging process of the present embodiment, first stamping is performed on two ends (i.e., regions to be forged) of the sheet metal 1 with a thickness of 0.6mm to form a first stamping groove 2, the depth of the first stamping groove 2 is 0.15mm, then second stamping is performed on the outer edge of the first stamping groove 2 to form a second stamping groove 3, and the depth of the second stamping groove 3 is 0.3mm (when it is required to describe, since the second stamping groove 3 is disposed on the first stamping groove 2, the actual stamping depth of the second stamping groove 3 is 0.15 mm), then the surface of the sheet metal 1 with the first and second stamping grooves to be forged is stamped into an inclined surface 6, the sheet metal bracket is finished with the regions to be forged, and finally the regions to be forged are stamped to form bent portions.
Example two
Referring to fig. 2, the second embodiment of the present invention is: a metal plate forging and thinning process comprises the following steps,
s1, determining an area needing to be thinned on a metal plate 1;
s2, punching the area to be forged for multiple times on at least one side of the area to be forged to form a plurality of punching grooves, wherein the depths of the punching grooves in multiple numbers are gradually reduced from one end of the area to be forged to the other end;
and S3, stamping and shaping the surface of the area to be thinned, which is provided with the stamping groove, so that the surface of the area to be thinned, which is provided with the stamping groove, is an inclined surface 6.
In this embodiment, when the area to be thinned is punched multiple times to form a plurality of punching grooves, the side of the next punching groove close to the previous punching groove is formed, that is, the surface of the area to be thinned having the punching grooves is wavy.
Furthermore, the number of the stamping grooves positioned on the same side of the area to be thinned is more than or equal to three.
After the surface of the region to be thinned with the punching groove is subjected to punching and shaping (i.e., step S3), the method further includes step S4 of bending the region to be thinned. Some products need to be provided with a bending part, and the bending part corresponds to an area needing to be forged and thinned, such as a metal bracket of a screen of a notebook computer, etc., under the condition that the bending part needs to be provided, if the sheet metal 1 is required to be forged, thinned and bent for one-step forming, a large-tonnage punching machine tool is inevitably required to be used, but after the sheet metal 1 is forged and thinned, the processes of forging, thinning and bending of the sheet metal 1 can be realized on a small-tonnage punching machine tool.
Optionally, the area to be thinned is disposed near the edge of the metal plate 1, and the thickness of the edge of the metal plate 1 is smaller than the thickness of the other areas of the metal plate 1.
Referring to fig. 2, in detail, when the U-shaped metal bracket for the notebook computer screen is manufactured by using the sheet metal 1 forging process of the present embodiment, a first punching process is performed on the edge of the end portion of the sheet metal 1 (i.e., the edge of the region to be forged) having a thickness of 0.6mm to form a first punching groove 2, the depth of the first punching groove 2 is 0.4mm, a second punching process is performed on the inner side of the first punching groove 2 to form a second punching groove 3, the depth of the second punching groove 3 is 0.35mm, a third punching process is performed on the inner side of the second punching groove 3 to form a third punching groove 4, the depth of the third punching groove 4 is 0.30mm, a fourth punching process is performed on the inner side of the third punching groove 4 to form a fourth punching groove 5, the depth of the fourth punching groove 5 is 0.15mm, the surface of the region to be forged having the first, second, third, fourth and fourth punching grooves is formed on the inner side of the sheet metal 1 to form a thin inclined surface 6, and the region to be forged to be bent, thereby forming the thin region to be forged for the notebook computer screen, and the thin bracket.
In conclusion, the metal plate forging and thinning process provided by the invention can be used for forging a metal plate with a thicker thickness by using a small-tonnage punching machine tool, is beneficial to reducing the acquisition cost and the production cost of equipment purchased by manufacturers, and is beneficial to improving the processing quality of products.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (6)
1. A sheet metal forging and thinning process is characterized in that: comprises the following steps of (a) carrying out,
determining an area to be thinned on a metal plate;
punching the area to be forged for multiple times on at least one side of the area to be forged to form a plurality of punching grooves, wherein the depths of the punching grooves in multiple numbers are gradually reduced from one end of the area to be forged to the other end; when the area needing to be thinned is punched for multiple times to form a plurality of punching grooves, the next punching groove is formed in the previous punching groove;
and stamping and shaping the surface of the area to be thinned, which is provided with the stamping groove, so that the surface of the area to be thinned, which is provided with the stamping groove, is an inclined surface.
2. The sheet metal forging process of claim 1, wherein: the number of the stamping grooves positioned on the same side of the area to be thinned is more than or equal to three.
3. The sheet metal forging process of claim 1, wherein: the thickness of the metal plate is 0.6mm, the difference of the depths of two adjacent stamping grooves is 0.15mm, and the stamping grooves are positioned in the stamping grooves on the same side of the area to be thinned.
4. The sheet metal forging process of claim 1, wherein: the method also comprises the step of bending the region to be forged and thinned after the surface of the region to be forged, which is provided with the stamping groove, is stamped and shaped.
5. The sheet metal forging process of claim 1, wherein: the area to be forged is arranged close to the edge of the metal plate.
6. The sheet metal forging process of claim 5, wherein: the thickness of the edge position of the metal plate is smaller than the thickness of other areas of the metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010967703.7A CN112317610B (en) | 2020-09-15 | 2020-09-15 | Sheet metal forging and thinning process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010967703.7A CN112317610B (en) | 2020-09-15 | 2020-09-15 | Sheet metal forging and thinning process |
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| CN112317610A CN112317610A (en) | 2021-02-05 |
| CN112317610B true CN112317610B (en) | 2022-11-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101227989A (en) * | 2005-07-25 | 2008-07-23 | Wf机械制造和金属模具技术有限及两合公司 | Method of forming a circular sheet-metal blank |
| US20070074556A1 (en) * | 2005-10-04 | 2007-04-05 | Shape Corporation | Continuous process of roll-forming stamped sheet |
| CN105081193A (en) * | 2015-08-19 | 2015-11-25 | 吴坤荣 | Method for forging metal plate body on hollow golf ball |
| CN107737863B (en) * | 2017-10-26 | 2019-03-12 | 齐鲁工业大学 | Customization slab method based on forging technology |
| CN108515100B (en) * | 2018-03-08 | 2020-08-25 | 深圳市长盈精密技术股份有限公司 | Method for regionally thinning metal plate and card holder manufactured by method |
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Effective date of registration: 20230525 Address after: 413000 Standardized Factory Building in East Industrial Park, High tech Zone, Yiyang City, Hunan Province Patentee after: Xinwei Communication (Yiyang) Co.,Ltd. Address before: Building A. B, No. 1013, Xihuan Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN SUNWAY COMMUNICATION Co.,Ltd. |
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