CN112247055A - New energy battery module end plate forming process and new energy battery pack - Google Patents
New energy battery module end plate forming process and new energy battery pack Download PDFInfo
- Publication number
- CN112247055A CN112247055A CN202011061576.0A CN202011061576A CN112247055A CN 112247055 A CN112247055 A CN 112247055A CN 202011061576 A CN202011061576 A CN 202011061576A CN 112247055 A CN112247055 A CN 112247055A
- Authority
- CN
- China
- Prior art keywords
- end plate
- forging
- module end
- die
- new energy
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The embodiment of the invention provides a new energy battery module end plate forming process and a new energy battery pack, wherein the forming process comprises the following steps: s1, preparing materials, and preprocessing the prepared materials; s2, placing the pretreated stock in a heatable prefabricated forging die; s3, carrying out forging forming on the pretreated stock material placed in the prefabricated forging die under the action of forging equipment to obtain a finished product of the module end plate; the invention can reduce working procedures, reduce energy consumption, reduce waste materials, reduce cost and improve percent of pass through forging and pressing molding; the method can be applied to the manufacture of the end plate of the battery pack module of the new energy automobile; the hot forging process is used for manufacturing the module end plate, the forging process is used for replacing the traditional die-casting process, the number of forming procedures is reduced, the product manufacturing process period is shortened, and the energy consumption in the manufacturing engineering is reduced.
Description
Technical Field
The invention relates to the technical field of new energy batteries, in particular to a new energy battery module end plate forming process and a new energy battery pack.
Background
The new energy automobile adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, and forms an automobile with advanced technical principle, new technology and new structure. With the support and popularization of national policies, new energy automobiles are gradually approved by consumers. In recent years, the requirements of the market and users are continuously improved, and how to improve the product performance and reduce the cost of new energy automobiles becomes the direction of the common efforts of all vehicles and enterprises.
The module end plate is one of the core components of the new energy automobile battery pack, and dozens or even dozens of module end plates are required to be installed in a single battery pack.
Most of the existing module end plates are formed by die-casting, and the die-casting process for manufacturing small products has the defects of long working procedure, high energy consumption, more waste materials, high cost, low qualified rate and the like.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a new energy battery module end plate forming process that overcomes or at least partially solves the above problems.
In order to solve the above problems, an embodiment of the present invention discloses a new energy battery module end plate forming process, including:
s1, preparing materials, and preprocessing the prepared materials;
s2, placing the pretreated stock in a heatable prefabricated forging die;
and S3, carrying out forging and forming on the pretreated stock placed in the prefabricated forging and forming die under the action of forging and forming equipment to obtain a finished product of the module end plate.
Further, in step S1, the stock material at least including one of gold, silver, copper, iron, alloy and rubber is pretreated.
Further, in step S1, the stock is heated to a specified temperature, where the specified temperature is 400 ℃ to 500 ℃.
Further, in step S3, the preform forging die includes a first forging die and a second forging die, and includes:
s31, carrying out forging and pressing forming on the pretreated stock material placed in the first forging and pressing die under the action of forging and pressing equipment to obtain a die set end plate semi-finished product which is in a shape and structure corresponding to a first die cavity in the first forging and pressing die;
and S32, clamping the semi-finished product of the module end plate to the second forging die through a special clamp, and forging and forming the semi-finished product of the module end plate placed in the second forging die under the action of forging equipment to obtain the finished product of the module end plate in the shape and structure corresponding to the second die cavity in the second forging die.
Further, in step S3, forge the material of prepareeing after the preliminary treatment under the effect through forging and pressing equipment and form, after obtaining module end plate finished product, still include:
and S4, trimming the die set end plate finished product through a blanking tool.
Further, in step S4, trimming the die set end plate finished product by using a blanking tool, specifically including the following steps:
s41, cooling the module end plate finished product;
and S42, placing the cooled module end plate finished product in a punching die for trimming and trimming flash and burrs, and punching holes.
Further, in step S4, after trimming the die set end plate product by using a blanking tool, the method further includes:
and S5, performing heat treatment, machining or sand blasting on the finished end plate of the module.
A new energy battery pack comprises the module end plate manufactured by the new energy battery module end plate forming process.
The embodiment of the invention has the following advantages:
through a new energy battery module end plate forming process, step S1, preparing materials, and preprocessing the prepared materials; step S2, placing the pretreated stock in a heatable prefabricated forging die; step S3, carrying out forging and pressing molding on the pretreated stock material placed in the prefabricated forging and pressing mold under the action of forging and pressing equipment to obtain a finished product of the module end plate; through forging and pressing molding, the working procedures can be reduced, the energy consumption and the waste can be reduced, the cost can be reduced, and the qualification rate can be improved; the method can be applied to the manufacture of the end plate of the battery pack module of the new energy automobile; the hot forging process is used for manufacturing the module end plate, the traditional die-casting process is replaced by the forging process, the number of forming procedures is reduced, the product manufacturing process period is shortened, and the energy consumption in the manufacturing engineering is reduced.
Drawings
Fig. 1 is a flowchart illustrating steps of an embodiment of a new energy battery module end plate forming process according to the present invention;
fig. 2 is a flowchart illustrating steps of another embodiment of a new energy battery module end plate forming process according to the present invention;
fig. 3 is a flowchart illustrating detailed steps of an embodiment of a new energy battery module end plate forming process according to the present invention;
fig. 4 is a flowchart illustrating detailed steps of another embodiment of a new energy battery module end plate forming process according to the present invention;
fig. 5 is a schematic structural view of a first forging and pressing die of the new energy battery module end plate forming process according to the invention;
fig. 6 is a schematic structural diagram of a module end plate semi-finished product of the new energy battery module end plate forming process of the invention;
fig. 7 is a schematic structural view of a second forging and pressing die of the new energy battery module end plate forming process according to the invention;
fig. 8 is a schematic structural diagram of a module end plate finished product of the new energy battery module end plate forming process of the invention;
fig. 9 is a schematic structural diagram of a new energy battery module end plate forming process according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another embodiment of a new energy battery module end plate forming process according to the present invention;
fig. 11 is a schematic structural diagram of a new energy battery pack.
In the drawings: 1. a first forging die; 2. a U-shaped groove; 3. semi-finished product of module end plate; 4. a second forging die; 5. a raised block; 6. a notch; 7. and (5) finishing the module end plate.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that, in any of the embodiments of the present invention, the preceding definitions are provided in connection with the entire text.
One of the core concepts of the embodiment of the invention is that the new energy battery module end plate forming process comprises the following steps: step S1, preparing materials, and preprocessing the prepared materials; step S2, placing the pretreated stock in a heatable prefabricated forging die; step S3, carrying out forging and pressing molding on the pretreated stock material placed in the prefabricated forging and pressing mold under the action of forging and pressing equipment to obtain a finished product of the module end plate; through forging and pressing molding, the working procedures can be reduced, the energy consumption and the waste can be reduced, the cost can be reduced, and the qualification rate can be improved; the method can be applied to the manufacture of the end plate of the battery pack module of the new energy automobile; the hot forging process is used for manufacturing the module end plate, the traditional die-casting process is replaced by the forging process, the number of forming procedures is reduced, the product manufacturing process period is shortened, and the energy consumption in the manufacturing engineering is reduced.
Referring to fig. 1, a flowchart illustrating steps of a new energy battery module end plate forming process according to an embodiment of the present application is shown, and specifically, the steps may include:
step S1, preparing materials, and preprocessing the prepared materials;
step S2, placing the pretreated stock in a heatable prefabricated forging die;
and step S3, carrying out forging and pressing molding on the pretreated stock material placed in the prefabricated forging and pressing mold under the action of forging and pressing equipment to obtain a finished product of the module end plate.
In the embodiment of the invention, the prepared material is pretreated, the treated prepared material is placed in a prefabricated forging and pressing die, the pretreated prepared material is forged and pressed under the action of forging and pressing equipment, and a die set end plate finished product is obtained through forging and pressing; the forging is a combination of forging and stamping, and is a forming method for obtaining a product with a required shape and size by applying pressure to a blank by using a hammer head, an anvil block and a punch of a forging and stamping machine or by using a die to generate plastic deformation. The method is applied to manufacturing of the end plate of the battery pack module of the new energy automobile; the forging and pressing molding can reduce the working procedures, reduce the energy consumption, reduce the waste materials, reduce the cost and improve the qualification rate; the hot forging process is used for manufacturing the module end plate, the traditional die-casting process is replaced by the forging process, the number of forming procedures is reduced, the product manufacturing process period is shortened, and the energy consumption in the manufacturing engineering is reduced.
Next, a new energy battery module end plate forming process according to the exemplary embodiment will be further described.
In the embodiment of the invention, the die casting is a metal casting process and is characterized in that a die cavity is utilized to apply high pressure to molten metal; the mold is typically machined from a stronger alloy, a process somewhat similar to injection molding; most die cast parts are iron-free, such as zinc, copper, aluminum, magnesium, lead, tin, and lead-tin alloys and their alloys. Depending on the type of die casting, either a cold chamber die casting machine or a hot chamber die casting machine may be used.
Forging, which is a processing method for applying pressure to a metal blank by using a forging machine to enable the metal blank to generate plastic deformation so as to obtain a forging with certain mechanical property, certain shape and certain size, wherein one of two major components of forging (namely forging and stamping) is adopted; the defects of as-cast porosity and the like generated in the smelting process of metal can be eliminated through forging, the microstructure is optimized, and meanwhile, because the complete metal streamline is preserved, the mechanical property of the forging is generally superior to that of a casting made of the same material; important parts with high load and severe working conditions in related machines are mainly forged pieces except for plates, sections or welding pieces which are simple in shape and can be rolled.
The forging replaces the die-casting, so that the end plate processing with different shapes, thicknesses and sizes can be met, or the processing of similar products of die-casting instead of forging can be realized; the processing of similar products is completed by increasing or reducing the working procedures, so that the number of forming working procedures is reduced, the product manufacturing process period is shortened, and the energy consumption in the manufacturing engineering is reduced.
In a preferred embodiment of the invention, the tonnage of the forging equipment is 800T; forging equipment tonnage includes, but is not limited to, 800T; forging equipment with different tonnages can be selected according to actual application scenes.
In the embodiment of the present invention, in step S1, the stock material at least including one of gold, silver, copper, iron, alloy and rubber is pretreated.
As an example, in a preferred embodiment of the present invention, the stock material is an aluminum alloy and has a plate shape; but not limited to, aluminum alloy as a raw material; the aluminum alloy material can be changed into other materials for replacement.
In the embodiment of the present invention, in step S1, the stock material is subjected to a heating treatment, where the heating treatment heats the stock material to a specified temperature, where the specified temperature is 400 ℃ to 500 ℃, but is not limited thereto; the designated temperature value can be adjusted according to the actual application scene.
As an example, in which the stock is a plate-shaped aluminum alloy, a plate-shaped aluminum alloy raw material is preheated to a specified temperature of 400 ℃ -500 ℃.
In an embodiment of the present invention, as shown in fig. 3, in step S3, the prefabricated forging die comprises a first forging die 1 and a second forging die 4, and the module end plate product 7 is prepared by the following steps: step S31, carrying out forging and pressing molding on the pretreated stock material placed in the first forging mold 1 under the action of forging equipment to obtain a module end plate semi-finished product 3 which is in a shape structure corresponding to a first mold cavity in the first forging mold 1; and step S32, clamping the module end plate semi-finished product 3 to the second forging die 4 through a special clamp, and forging and forming the module end plate semi-finished product 3 placed in the second forging die 4 under the action of forging equipment to obtain a module end plate finished product 7 which is in a structure corresponding to the shape of a second die cavity in the second forging die 4.
It should be noted that the first forging die 1 and the second forging die 4 can be heated and are respectively installed on the working table of the forging equipment; the heating function is to compensate the temperature of the material cooled down after the forging and pressing.
As an example, as shown in fig. 5 to 8, a plate-like aluminum alloy raw material is preheated to a prescribed temperature of 400 to 500 ℃, placed in a first forging die 1 after reaching the prescribed temperature, subjected to forging by activating a forging apparatus, and flowed in the first forging die 1 in accordance with a first cavity shape as shown in fig. 5 to form a die set end plate semi-finished product 3 press-formed in accordance with the first cavity shape as shown in fig. 6; clamping the module end plate semi-finished product 3 into a second forging die 4 through a special clamp, forging and pressing through restarting forging equipment, and forming a module end plate finished product 7 which is formed through forging and pressing and is shown in figure 8 in the second forging die 4 according to the shape of a second die cavity shown in figure 7 and flowing according to the shape of the second die cavity; a plurality of inwards sunken U-shaped grooves 2 are formed in the first forging die 1, and the inwards sunken U-shaped grooves 2 form a first die cavity shape structure; a plurality of outward protruding blocks 5 are arranged in the second forging die 4, notches 6 are formed among the protruding blocks 5 at intervals, and the notches 6 are formed among the protruding blocks 5 at intervals to form a second die cavity shape structure.
The sequence is divided into the first forging die 1 and the second forging die 4 to perform the hot forging process to manufacture the end plate of the module, because the forging is formed step by step, the end plate can also be directly formed by one-step forging, the sequence is provided only for the listed examples, most forging needs a plurality of forging processes, and the sequence is not limited to the sequence and can be changed according to the actual situation.
In the embodiment of the present invention, as shown in fig. 2, step S1 is to prepare a material, and to pre-process the material; step S2, placing the pretreated stock in a heatable prefabricated forging die; step S3, carrying out forging and pressing molding on the pretreated stock material placed in the prefabricated forging and pressing mold under the action of forging and pressing equipment to obtain a finished product of the module end plate; after step S3, the method further includes: step S4, trimming the finished product of the module end plate through a blanking tool; the specific process of "trimming the end plate end product of the die set by the blanking tool" in step S4 can be further explained with reference to the following description.
As shown in fig. 4, in step S4, trimming the die set end plate product by using a blanking tool, specifically, the following steps are adopted: step S41, cooling the module end plate finished product; step S42, placing the cooled module end plate finished product in a punching die for trimming flash and burr, and punching holes; it should be noted that the finished product of the module end plate obtained in step S3 is a burr-edged product; after cooling the module end plate finished product with the burr edge, putting the cooled module end plate finished product with the burr edge into a special trimming die to die-cut redundant rim charge, trimming the burr and the burr, and simultaneously punching a simple opening to obtain the die-cut module end plate finished product without the burr edge; the trimming die is a stamping die which utilizes a stamping die to trim the edge of a working procedure piece so as to enable the edge to have certain height, diameter and shape; the trimming die is mainly used for trimming the edge of a drawn part, so that the end face is flat and attractive, and the next assembly is facilitated; the trimming die is widely applied to the fields of machine manufacturing, automobile part production, beverage bottle processing, fastener die matching and the like.
In the embodiment of the present invention, as shown in fig. 2, step S1 is to prepare a material, and to pre-process the material; step S2, placing the pretreated stock in a heatable prefabricated forging die; step S3, carrying out forging and pressing molding on the pretreated stock material placed in the prefabricated forging and pressing mold under the action of forging and pressing equipment to obtain a finished product of the module end plate; step S4, trimming the finished product of the module end plate through a blanking tool; after step S4, the method further includes: step S5, carrying out heat treatment, machining or sand blasting procedures on the module end plate finished product; and further processing the trimmed module end plate finished product according to the requirements of the specific shape performance and the like of the product, and forming the module end plate finished product into a corresponding module end plate product through processing such as heat treatment, machining or sand blasting.
As an example, the finished module end plate shown in fig. 9 may be subjected to a heat treatment, machining, or sand blasting process to form the particular module end plate product shown in fig. 10.
In the embodiments of the present invention, it should be noted that a new energy battery pack including a module end plate manufactured by the new energy battery module end plate forming process disclosed in the present invention is also within the scope of protection of the present invention.
Step S1, preparing materials, and preprocessing the prepared materials; step S2, placing the pretreated stock in a heatable prefabricated forging die; step S3, carrying out forging and pressing molding on the pretreated stock material placed in the prefabricated forging and pressing mold under the action of forging and pressing equipment to obtain a finished product of the module end plate; step S4, trimming the finished product of the module end plate through a blanking tool; step S5, carrying out heat treatment, machining or sand blasting procedures on the module end plate finished product; according to the steps, the battery pack module end plate shown in fig. 11, namely, the new energy battery pack can be obtained.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The new energy battery module end plate forming process and the new energy battery pack provided by the invention are described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. The utility model provides a new energy battery module end plate forming process which characterized in that includes:
s1, preparing materials, and preprocessing the prepared materials;
s2, placing the pretreated stock in a heatable prefabricated forging die;
and S3, carrying out forging and forming on the pretreated stock placed in the prefabricated forging and forming die under the action of forging and forming equipment to obtain a finished product of the module end plate.
2. The process for forming an end plate of a new energy battery module according to claim 1, wherein in step S1, the stock material at least comprising one of gold, silver, copper, iron, alloy and rubber is pretreated.
3. The new energy battery module end plate forming process of claim 1, wherein in step S1, the stock material is subjected to a heating treatment, and the heating treatment heats the stock material to a specified temperature, and the specified temperature is 400-500 ℃.
4. The new energy battery module end plate forming process of claim 1, wherein in the step S3, the prefabricated forging die comprises a first forging die and a second forging die, and the step S comprises:
s31, carrying out forging and pressing forming on the pretreated stock material placed in the first forging and pressing die under the action of forging and pressing equipment to obtain a die set end plate semi-finished product which is in a shape and structure corresponding to a first die cavity in the first forging and pressing die;
and S32, clamping the semi-finished product of the module end plate to the second forging die through a special clamp, and forging and forming the semi-finished product of the module end plate placed in the second forging die under the action of forging equipment to obtain the finished product of the module end plate in the shape and structure corresponding to the second die cavity in the second forging die.
5. The new energy battery module end plate forming process as claimed in claim 1, wherein in step S3, the pre-treated stock is forged and formed under the action of a forging device to obtain a module end plate finished product, and the process further comprises:
and S4, trimming the die set end plate finished product through a blanking tool.
6. The new energy battery module end plate forming process of claim 5, wherein in step S4, the module end plate finished product is trimmed by a blanking tool, specifically including the following steps:
s41, cooling the module end plate finished product;
and S42, placing the cooled module end plate finished product in a punching die for trimming and trimming flash and burrs, and punching holes.
7. The new energy battery module end plate forming process of claim 5, wherein in step S4, after the module end plate finished product is trimmed by a blanking tool, the process further comprises:
and S5, performing heat treatment, machining or sand blasting on the finished end plate of the module.
8. A new energy battery pack, characterized by comprising a module end plate manufactured by the new energy battery module end plate forming process according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061576.0A CN112247055A (en) | 2020-09-30 | 2020-09-30 | New energy battery module end plate forming process and new energy battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061576.0A CN112247055A (en) | 2020-09-30 | 2020-09-30 | New energy battery module end plate forming process and new energy battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112247055A true CN112247055A (en) | 2021-01-22 |
Family
ID=74233582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011061576.0A Pending CN112247055A (en) | 2020-09-30 | 2020-09-30 | New energy battery module end plate forming process and new energy battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112247055A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060039818A1 (en) * | 2004-08-18 | 2006-02-23 | Delta Electronics, Inc. | Method of forming a die |
| CN102024921A (en) * | 2009-09-14 | 2011-04-20 | 北京理工大学 | Fully-sealed laminated battery box |
| CN102218641A (en) * | 2010-04-19 | 2011-10-19 | 昆山广兴电子有限公司 | Manufacturing method of metal fan frame |
| CN103357804A (en) * | 2012-04-01 | 2013-10-23 | 华中科技大学 | Damping type flow control forming process and die for aluminium-alloy rib-plate forging |
| CN103974576A (en) * | 2013-07-19 | 2014-08-06 | 富准精密工业(深圳)有限公司 | Electronic device shell and manufacturing method thereof |
| CN106531914A (en) * | 2015-09-15 | 2017-03-22 | 北京普莱德新能源电池科技有限公司 | Square cell module |
| CN210956773U (en) * | 2019-11-26 | 2020-07-07 | 安徽绿沃循环能源科技有限公司 | Cylinder electricity core battery module structure |
-
2020
- 2020-09-30 CN CN202011061576.0A patent/CN112247055A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060039818A1 (en) * | 2004-08-18 | 2006-02-23 | Delta Electronics, Inc. | Method of forming a die |
| CN102024921A (en) * | 2009-09-14 | 2011-04-20 | 北京理工大学 | Fully-sealed laminated battery box |
| CN102218641A (en) * | 2010-04-19 | 2011-10-19 | 昆山广兴电子有限公司 | Manufacturing method of metal fan frame |
| CN103357804A (en) * | 2012-04-01 | 2013-10-23 | 华中科技大学 | Damping type flow control forming process and die for aluminium-alloy rib-plate forging |
| CN103974576A (en) * | 2013-07-19 | 2014-08-06 | 富准精密工业(深圳)有限公司 | Electronic device shell and manufacturing method thereof |
| CN106531914A (en) * | 2015-09-15 | 2017-03-22 | 北京普莱德新能源电池科技有限公司 | Square cell module |
| CN210956773U (en) * | 2019-11-26 | 2020-07-07 | 安徽绿沃循环能源科技有限公司 | Cylinder electricity core battery module structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102319992B (en) | Method for manufacturing aluminum alloy die forging | |
| CN110722078B (en) | Synchronous forging scrap-removing and weight-reducing forging process | |
| CN104015007A (en) | Method for manufacturing aluminum alloy hub | |
| CN103817495A (en) | Manufacturing method of aluminum alloy hub | |
| CN108500189A (en) | A kind of molding die with straight-edge conical cylinder forging and forging process for fuel method | |
| CN110293148B (en) | Magnesium alloy plate stamping and forging composite forming method | |
| CN108787904B (en) | Stamping and riveting integrated process and die for patch reinforcing structure | |
| CN102500740A (en) | Manufacturing process for lambdoidal control arm | |
| CN107855448A (en) | The manufacture method of Al-alloy casing | |
| CN105331908A (en) | Hot-stamping tailor-welded blanks of aluminum sheet | |
| CN104191181A (en) | Magnesium alloy wheel forging-spinning composite forming method | |
| CN203265502U (en) | Hot forging device for transmission shaft joint fork with horizontal fork part | |
| CN1785550A (en) | Forging method of soliding fork | |
| CN111330986A (en) | Efficient integrated processing method for preparing high-strength high-toughness magnesium alloy sheet with controllable double-peak structure | |
| CN105268903A (en) | Forging forming method of aluminum alloy hub | |
| CN102357628A (en) | Method for forming aluminum alloy branch forgings | |
| CN102179464B (en) | Process for forming generator claw pole of vehicle | |
| CN104015012A (en) | Manufacturing method of Al-Mg-Si alloy hub | |
| CN101549459B (en) | Manufacturing technology of individual hydraulic prop piston | |
| CN112676506A (en) | Universal joint cross shaft closed forging and forging residual heat normalizing processing technology | |
| CN101633020A (en) | Processing technique for manufacturing housing of digital camera by magnesium alloy stamping part | |
| CN102974729A (en) | Machining method of automobile engine left plate | |
| CN103182606A (en) | Method for producing laser welding tailored blanks with different thicknesses | |
| CN110919375B (en) | Double-size flange forging process | |
| CN112247055A (en) | New energy battery module end plate forming process and new energy battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210122 |