CN112518247A - Fixed disk machining method - Google Patents
Fixed disk machining method Download PDFInfo
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- CN112518247A CN112518247A CN202011346651.8A CN202011346651A CN112518247A CN 112518247 A CN112518247 A CN 112518247A CN 202011346651 A CN202011346651 A CN 202011346651A CN 112518247 A CN112518247 A CN 112518247A
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- steel pipe
- seamless steel
- heat treatment
- fixed disk
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention provides a fixed disk processing method, which comprises the following steps: step S1: cutting the seamless steel pipe, and then carrying out heat treatment; step S2: machining the seamless steel pipe subjected to the heat treatment in the step S1; the seamless steel pipe is made of high-quality carbon structural steel. Compared with the prior art, the invention has the beneficial effects that: the seamless steel pipe is used as a raw material, and only heat treatment and machining are needed in subsequent processing, so that the process flow is shortened, and the production efficiency is improved.
Description
Technical Field
The invention belongs to the field of machining, and particularly relates to a fixed disk machining method.
Background
The rear axle is a rear driving shaft component for transmitting the power of the vehicle. It is composed of two half-bridges, and can implement half-bridge differential motion. It is also a device for supporting the wheels and connecting the rear wheels.
The rear axle housing is used for protecting the rear axle, bearing the automobile quality together, and fixing the axial relative positions of the left driving wheel and the right driving wheel, and the fixed disc is used for fixedly connecting the rear axle housing.
Nowadays, the fixed disk adopts round steel forging more, and its technology order does in proper order: blanking, heating, forging, trimming and punching, thermal normalizing treatment and machining, and has the advantages of long process flow, low efficiency and serious material loss.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for processing a fixed disk.
The specific technical scheme is as follows:
the fixed disk processing method is different in that the fixed disk processing method comprises the following steps:
step S1: cutting the seamless steel pipe, and then carrying out heat treatment;
step S2: machining the seamless steel pipe subjected to the heat treatment in the step S1;
the seamless steel pipe is made of high-quality carbon structural steel.
Compared with the prior art, the invention has the beneficial effects that: the seamless steel pipe is adopted as a raw material, and in subsequent processing, as the steel pipe is provided with the through hole, only heat treatment and machining are needed, so that the process flow is shortened, and the production efficiency is improved.
Furthermore, the seamless steel pipe is made of 35# steel or 45# steel.
Furthermore, the seamless steel pipe is made of 35# steel.
Further, in the step S1, the heat treatment is performed under the condition of normalizing at 850-870 ℃ for 200-300 min.
Further, in the step S1, the heat treatment is performed under the condition of normalizing at 860 ℃ for 240 min.
Furthermore, the wall thickness of the seamless steel pipe is 35 mm-40 mm.
Further, the wall thickness of the seamless steel pipe is 38 mm.
Further, in step S1, the seamless steel pipe is cut into a length of 35mm to 45mm and then heat-treated.
Further, in step S1, the seamless steel pipe is cut into a length of 40mm and then heat-treated.
The beneficial effect of adopting the further technical scheme is that: by selecting materials and heat treatment process conditions, the process conditions of production by adopting seamless steel pipes as raw materials are matched, so that the mechanical property of the fixed disc is improved.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a diagram of the product of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example 1
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing at 860 ℃ for 240 min.
Step S2: and (4) machining the seamless steel pipe subjected to the heat treatment in the step S1.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 38 mm.
Example 2
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 45mm, and then carrying out heat treatment under the condition of normalizing at 860 ℃ for 240 min.
Step S2: and (4) machining the seamless steel pipe subjected to the heat treatment in the step S1.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 38 mm.
Example 3
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 35mm, and then carrying out heat treatment under the condition of normalizing at 860 ℃ for 240 min.
Step S2: and (4) machining the seamless steel pipe subjected to the heat treatment in the step S1.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 38 mm.
Example 4
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing at 860 ℃ for 240 min.
Step S2: and (4) machining the seamless steel pipe subjected to the heat treatment in the step S1.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 35 mm.
Example 5
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing at 860 ℃ for 240 min.
Step S2: and (4) machining the seamless steel pipe subjected to the heat treatment in the step S1.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 40 mm.
Example 6
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing at 850 ℃ for 240 min.
Step S2: and (4) machining the seamless steel pipe subjected to the heat treatment in the step S1.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 40 mm.
Example 7
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing at 870 ℃ for 240 min.
Step S2: and (4) machining the seamless steel pipe subjected to the heat treatment in the step S1.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 40 mm.
Example 8
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing for 200min at 860 ℃.
Step S2: and (4) machining the seamless steel pipe subjected to the heat treatment in the step S1.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 40 mm.
Example 9
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing for 200min at 900 ℃.
Step S2: and (4) machining the seamless steel pipe subjected to the heat treatment in the step S1.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 40 mm.
Example 10
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing at 860 ℃ for 240 min.
Step S2: and (4) machining the seamless steel pipe subjected to the heat treatment in the step S1.
The seamless steel pipe is made of 45# steel, and the wall thickness of the seamless steel pipe is 38 mm.
Example 11
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing at 860 ℃ for 240 min.
Step S2: and (5) machining the seamless steel pipe subjected to the heat treatment in the step S1, roughening the seamless steel pipe after machining, and finally spraying a KN22 wear-resistant ceramic coating by using plasma, wherein the spraying thickness is about 0.6 mm.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 38 mm.
Example 12
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing at 860 ℃ for 240 min.
Step S2: and (5) machining the seamless steel pipe subjected to the heat treatment in the step S1, roughening the seamless steel pipe after machining, and finally spraying a KN22 wear-resistant ceramic coating by using plasma, wherein the spraying thickness is about 0.8 mm.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 38 mm.
Example 13
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing at 860 ℃ for 240 min.
Step S2: and (5) machining the seamless steel pipe subjected to the heat treatment in the step S1, roughening the seamless steel pipe after machining, and finally spraying the KN22 wear-resistant ceramic coating by using plasma, wherein the spraying thickness is about 1 mm.
The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 38 mm.
Example 14
The fixed disc is processed according to the following steps:
step S1: cutting the seamless steel pipe into small sections with the length of 40mm, and then carrying out heat treatment under the condition of normalizing at 860 ℃ for 240 min.
Step S2: and machining the seamless steel pipe subjected to the heat treatment in the step S1, roughening the seamless steel pipe after machining, and finally spraying the AT40 wear-resistant ceramic coating by using plasma, wherein the spraying thickness is about 0.8 mm. The seamless steel pipe is made of 35# steel, and the wall thickness of the seamless steel pipe is 38 mm.
Comparative example 1
The fixed disc is processed by adopting 35# round steel according to the following steps:
step S1: heating the 35# round steel at 1200 ℃ and then forging;
step S2: then punching and trimming;
step S3: and (4) carrying out heat treatment under the condition of normalizing at 870 ℃ for 240 min.
Step S4: and (6) machining.
Comparative example 2
The fixed disc is processed by adopting 35# round steel according to the following steps:
step S1: heating the 35# round steel at 1200 ℃ and then forging;
step S2: then punching and trimming;
step S3: and (4) carrying out heat treatment under the condition of normalizing at 860 ℃ for 240 min.
Step S4: and (6) machining.
Performance detection
1.1
The properties and mechanical properties of the steels obtained in examples 1 to 13 and comparative examples 1 to 2 were measured according to the national standard GB/T13320, and the results are shown in Table 1.
TABLE 1 test results of examples and comparative examples
1.2
The binding force of the coatings of examples 11 and 14 was measured in accordance with GB/T8642-2002, and the results are shown in Table 2.
Table 2 test results of the test experiments
| Binding force (MPa) | |
| Example 11 | 72～75 |
| Example 14 | 28～32 |
Compared with the comparative examples 1-2, the performance of the embodiment is kept excellent and the waste of raw materials is avoided under the condition that forging, punching and trimming are omitted in the process flow.
Compared with the comparative example 2, different processes are matched with different heat treatment processes to ensure the mechanical properties of the steel.
Besides, in order to meet special high-strength requirements, the ceramic coatings are sprayed in the examples 11 to 14 of the invention to further improve the strength, and the KN22 wear-resistant ceramic coatings are sprayed in the examples 11 to 14, the hardness of the wear-resistant ceramic coatings increases with the increase of the spraying thickness, but the hardness is not obvious when the hardness exceeds 0.8mm, the binding force of different coatings is different due to the types of the coatings, and the binding force of the wear-resistant ceramic coatings adopting the KN22 is better than that of the AT40 coatings.
Meanwhile, the inventors found that the mechanical properties of the produced fixed disks are different for different raw materials and different heat treatment conditions.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A fixed disk processing method is characterized by comprising the following steps:
step S1: cutting the seamless steel pipe, and then carrying out heat treatment;
step S2: machining the seamless steel pipe subjected to the heat treatment in the step S1;
the seamless steel pipe is made of high-quality carbon structural steel.
2. The method for processing the fixed disk according to claim 1, wherein the seamless steel tube is made of 35# steel or 45# steel.
3. The method for processing the fixed disk according to claim 1, wherein the seamless steel tube is 35# steel.
4. The fixed disk processing method as claimed in claim 1, wherein the heat treatment is performed under the process condition of normalizing at 850-870 ℃ for 200-300 min in step S1.
5. The fixed disk processing method as set forth in claim 1, wherein the heat treatment is performed under the condition of normalizing at 860 ℃ for 240min in step S1.
6. The fixed disk processing method as set forth in claim 1 or 3, wherein the wall thickness of the seamless steel pipe is 35mm to 40 mm.
7. The fixed disk processing method as set forth in claim 6, wherein the wall thickness of the seamless steel pipe is 38 mm.
8. The fixed disk processing method as claimed in claim 1 or 3, wherein the seamless steel pipe is cut to a length of 35mm to 45mm and then heat-treated in step S1.
9. The fixed disk processing method as set forth in claim 1 or 3, wherein the seamless steel pipe is cut to a length of 40mm and then heat-treated in step S1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346651.8A CN112518247A (en) | 2020-11-25 | 2020-11-25 | Fixed disk machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346651.8A CN112518247A (en) | 2020-11-25 | 2020-11-25 | Fixed disk machining method |
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| CN112518247A true CN112518247A (en) | 2021-03-19 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844306A (en) * | 2010-06-17 | 2010-09-29 | 株洲齿轮有限责任公司 | Processing method of annular gear of thin-wall member |
| CN105033590A (en) * | 2015-09-02 | 2015-11-11 | 长江三峡能事达电气股份有限公司 | Machining process of valve body of large-flow cartridge valve |
| CN105855817A (en) * | 2016-06-07 | 2016-08-17 | 株洲齿轮有限责任公司 | Cylindrical finish turning blank special for producing planetary gear and machining method thereof |
| CN110091138A (en) * | 2019-06-18 | 2019-08-06 | 常熟希那基汽车零件有限公司 | A kind of novel hollow production method of shaft |
-
2020
- 2020-11-25 CN CN202011346651.8A patent/CN112518247A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844306A (en) * | 2010-06-17 | 2010-09-29 | 株洲齿轮有限责任公司 | Processing method of annular gear of thin-wall member |
| CN105033590A (en) * | 2015-09-02 | 2015-11-11 | 长江三峡能事达电气股份有限公司 | Machining process of valve body of large-flow cartridge valve |
| CN105855817A (en) * | 2016-06-07 | 2016-08-17 | 株洲齿轮有限责任公司 | Cylindrical finish turning blank special for producing planetary gear and machining method thereof |
| CN110091138A (en) * | 2019-06-18 | 2019-08-06 | 常熟希那基汽车零件有限公司 | A kind of novel hollow production method of shaft |
Non-Patent Citations (1)
| Title |
|---|
| 毕见强等: "《特种陶瓷工艺与性能》", 31 July 2018, 哈尔滨工业大学出版社 * |
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Application publication date: 20210319 |
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