CN114833529A - Production process of automobile control arm - Google Patents
Production process of automobile control arm Download PDFInfo
- Publication number
- CN114833529A CN114833529A CN202210387758.XA CN202210387758A CN114833529A CN 114833529 A CN114833529 A CN 114833529A CN 202210387758 A CN202210387758 A CN 202210387758A CN 114833529 A CN114833529 A CN 114833529A
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- CN
- China
- Prior art keywords
- forging
- control arm
- automobile control
- carrying
- steel section
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- 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.)
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
Abstract
The invention provides a production process of an automobile control arm, which comprises the following steps of S1: selecting a steel section with an appropriate size, turning the steel section into a size and a shape suitable for manufacturing an automobile control arm, and carrying out annealing process treatment on the steel section; s2: bending and hot forging the steel section to obtain a rough forging piece, and then trimming the rough forging piece; s3: heating the rough forging to 548 ℃ and keeping the temperature constant, so that metal compounds of various phases of the rough forging are contained in solid solution, and then cooling the finish forging of the compressor piston body at a natural speed; s4: carrying out precision forging on the rough forging to obtain a precision forging; s5: heating the precision forging to 548 ℃, carrying out constant-temperature solution treatment, and then carrying out artificial cooling treatment; s6: and impacting the surface of the finish forging by using high-speed fine sand to increase the surface roughness of the finish forging, and then carrying out finish machining on the finish forging by CMC (carboxy methyl cellulose) processing to obtain the automobile control arm.
Description
Technical Field
The invention relates to the field of automobile control arms, in particular to a production process of an automobile control arm.
Background
A Control arm (also called a swing arm) of an automobile is used as a guiding and force-transmitting element of an automobile suspension system, transmits various forces acting on wheels to an automobile body, and ensures that the wheels move according to a certain track. The vehicle control arm elastically connects the wheel and the vehicle body through a spherical hinge or a bushing.
The automobile control arm (including a bush and a ball head connected with the automobile control arm) has enough rigidity and strength and long service life, and the automobile control arm on the market is poor in rigidity and strength due to the fact that the processing technology is lagged behind, so that the automobile control arm is broken, the driving of an automobile is affected, even the automobile control arm is broken in the driving process, the life and property safety of personnel on the automobile is endangered, and meanwhile, the service life is generally short due to the fact that the technology is lagged behind.
Disclosure of Invention
The invention provides a production process of an automobile control arm, aiming at improving the rigidity and strength of the automobile control arm and prolonging the service life of the automobile control arm.
The invention provides a production process of an automobile control arm, which comprises the following steps:
s1: selecting a steel section with an appropriate size, turning the steel section into a size and a shape suitable for manufacturing an automobile control arm, and carrying out annealing process treatment on the steel section;
s2: bending and hot forging the steel section to obtain a rough forging piece, and then trimming the rough forging piece;
s3: heating the rough forging to 548 ℃ and keeping the temperature constant, so that metal compounds of various phases of the rough forging are contained in solid solution, and then cooling the finish forging of the compressor piston body at a natural speed;
s4: carrying out precision forging on the rough forging to obtain a precision forging;
s5: heating the precision forging to 548 ℃, carrying out constant-temperature solution treatment, and then carrying out artificial cooling treatment;
s6: and impacting the surface of the finish forging by using high-speed fine sand to increase the surface roughness of the finish forging, and then carrying out finish machining on the finish forging by CMC (carboxy methyl cellulose) processing to obtain the automobile control arm.
Preferably, the process for producing an automobile control arm according to claim 1, wherein: s6 then includes the following steps:
s7: carrying out laser engraving on the automobile control arm, and engraving the commodity serial number to the automobile control arm;
s8: and cleaning the automobile control arm.
Preferably, the steel section is made of high-strength aluminum alloy materials.
Preferably, the automobile control arm is subjected to physical and chemical performance tests.
Compared with the prior art, the production process of the automobile control arm provided by the invention has the following advantages:
1. a production process of an automobile control arm comprises the following steps of S1: selecting a steel section with a proper size, facilitating subsequent cutting processing, reducing the workload of cutting process steps, improving the production efficiency, turning the steel section into a blank of an automobile control arm, carrying out annealing process treatment on the blank, reducing the hardness of the blank, facilitating subsequent processing, eliminating internal stress and impurities of the blank, and improving the strength, hardness and purity of the blank; and step S2: bending the steel section, performing hot forging on a blank of the steel section, performing hot forging on the blank to form a rough forging piece, so as to obtain the rough forging piece of the automobile control arm, reducing the hardness of the rough forging piece by adopting a hot forging process, facilitating forging, further reducing the internal stress of the rough forging piece, eliminating impurities of the rough forging piece, further improving the strength, hardness and purity of the rough forging piece, and improving the purity to ensure that the rough forging piece is not easy to rust, and temporarily reducing the hardness of the rough forging piece due to hot forging, thereby facilitating a subsequent trimming process and improving the processing production efficiency of the rough forging piece; and step S3: heating the rough forging to 548 ℃ and keeping the temperature constant, so that metal compounds of multiple phases of the rough forging are contained in solid solution to obtain a single metal phase, the mechanical property and the corrosion resistance of the automobile control arm are ensured, the stress of the automobile control arm is eliminated, the automobile control arm is not easy to deform, crack and rust, and the hardness and the corrosion resistance of the automobile control arm are improved; s4, performing precision forging on the rough forging, improving the precision of the rough forging, reducing the size error of the automobile control arm, improving the size precision of the automobile control arm, and obtaining a precision forging; and step S5: heating the precision forging piece to 548 ℃ and carrying out constant-temperature solution treatment, and then adopting artificial cooling treatment to further contain the multi-phase metal compound of the precision forging piece into a solid solution to obtain a single metal phase, further ensuring the mechanical property and corrosion resistance of the automobile control arm and further eliminating the stress of the automobile control arm; and step S6: the surface of a precision forging is impacted by high-speed fine sand to increase the surface roughness of the precision forging, so that the appearance or the shape of the outer surface of the workpiece surface is changed, the surface of the workpiece obtains certain cleanliness and different roughness due to the impact and the cutting action of an abrasive on the surface of the workpiece, the mechanical property of the surface of the workpiece is improved, the fatigue resistance of the workpiece is improved, the adhesive force between the workpiece and a coating is increased, the durability of a coating is prolonged, the subsequent CMC processing is convenient, the precision forging is subjected to finish machining in the CMC processing, the structure of an automobile control arm is ground on the precision forging, a hole is drilled on the surface in a high-precision mode, the size precision of the automobile control arm is improved, and the automobile control arm is obtained.
Step S7: the automobile control arm is subjected to laser engraving, the commodity serial number is engraved to the automobile control arm, laser engraved characters have no trace, the surface of the automobile control arm is smooth, the characters are not abraded, the display of the characters cannot be influenced by mechanical movement and deformation, and the mechanical performance cannot be influenced by laser engraving; and step S8: the automobile control arm is cleaned, impurities remained on the surface of the automobile control arm are washed out, the influence of the impurities on the connection between the automobile control arm and other parts is avoided, and the relative sliding of the automobile control arm and other parts is avoided.
3. The steel section is made of high-strength aluminum alloy materials, so that the material for manufacturing the automobile control arm can meet the requirements of strength and hardness, and the automobile control arm can have certain corrosion resistance; the physical and chemical performance tests are carried out on the automobile control arm, and the relevant tests of shearing resistance, strength and hardness and the relevant chemical tests of corrosion resistance of the automobile control arm are detected, so that the outgoing quality of the automobile control arm is ensured.
Drawings
Fig. 1 is a flowchart of a manufacturing process of an automobile control arm according to a first embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Referring to fig. 1, a first embodiment of the present invention provides a production process of an automobile control arm, including the following steps:
s1: selecting a steel section with a proper size, turning the steel section into a size and a shape suitable for manufacturing an automobile control arm, and carrying out annealing process treatment on the steel section;
the method has the advantages that the steel section with the appropriate size is selected, subsequent cutting processing is facilitated, the workload of cutting process steps is reduced, the production efficiency is improved, the steel section is turned into a blank of the automobile control arm, the blank is subjected to annealing process treatment, the hardness of the blank is reduced, subsequent processing is facilitated, internal stress and impurities of the blank are eliminated, and the strength, hardness and purity of the blank are improved.
S2: bending and hot forging the steel section to obtain a rough forging piece, and then trimming the rough forging piece;
the method has the advantages that the steel section is bent, the blank is subjected to hot forging to form a rough forging, the rough forging of the automobile control arm is obtained, the hardness of the rough forging is reduced by adopting a hot forging process, the forging is convenient, the internal stress is further reduced, the impurities of the rough forging are eliminated, the strength, hardness and purity of the rough forging are further improved, the purity is improved, the rough forging is not easy to rust, the hardness of the rough forging is temporarily reduced due to the hot forging, the subsequent trimming process is convenient, and the processing and production efficiency is improved.
S3: heating the rough forging to 548 ℃ and keeping the temperature constant, so that metal compounds of various phases of the rough forging are contained in solid solution, and then cooling the finish forging of the compressor piston body at a natural speed;
the method can be understood that the rough forging is heated to 548 degrees and is kept at a constant temperature, so that the metal compounds of various phases of the rough forging are contained in the solid solution, a single metal phase is obtained, the mechanical property and the corrosion resistance of the automobile control arm are ensured, the stress of the automobile control arm is eliminated, the automobile control arm is not easy to deform, crack and rust, and the hardness and the corrosion resistance of the automobile control arm are improved.
S4: carrying out precision forging on the rough forging to obtain a precision forging;
the method has the advantages that the rough forging piece is subjected to precision forging, the precision of the rough forging piece is improved, the size error of the automobile control arm is reduced, the size precision of the automobile control arm is improved, and the precision forging piece is obtained.
S5: heating the precision forging to 548 ℃, carrying out constant-temperature solution treatment, and then carrying out artificial cooling treatment;
it can be understood that the precision forging piece is heated to 548 degrees and subjected to constant-temperature solution treatment, and then artificial cooling treatment is adopted, so that the metal compounds of various phases of the precision forging piece are further contained in a solid solution, a single metal phase is obtained, the mechanical property and the corrosion resistance of the automobile control arm are further ensured, and the stress of the automobile control arm is further eliminated.
S6: and impacting the surface of the finish forging by using high-speed fine sand to increase the surface roughness of the finish forging, and then carrying out finish machining on the finish forging by CMC (carboxy methyl cellulose) processing to obtain the automobile control arm.
The method can be understood that the surface of the precision forging is impacted by high-speed fine sand to increase the surface roughness of the precision forging, so that the appearance or the shape of the outer surface of the workpiece surface is changed, the surface of the workpiece obtains certain cleanliness and different roughness due to the impact and cutting action of an abrasive on the surface of the workpiece, the mechanical property of the surface of the workpiece is improved, the fatigue resistance of the workpiece is improved, the adhesive force between the workpiece and a coating is increased, the durability of a coating is prolonged, the subsequent CMC processing is convenient, then the precision forging is subjected to finish machining on the CMC processing, the structure of the automobile control arm is ground on the precision forging, holes are drilled on the surface in a high-precision mode, the size precision of the automobile control arm is improved, and the automobile control arm is obtained.
S6 then includes the following steps:
s7: carrying out laser engraving on the automobile control arm, and engraving the commodity serial number to the automobile control arm;
can understand, carry out radium carving to automobile control arm, carve the commodity serial number to automobile control arm, laser sculpture's characters can not have the vestige, and automobile control arm's surface is smooth, and characters also can not receive wearing and tearing, and mechanical motion, deformation can not influence the demonstration of characters, and laser sculpture can not influence mechanical properties.
S8: and cleaning the automobile control arm.
It can be understood that the automobile control arm is cleaned, impurities remained on the surface of the automobile control arm are washed out, the influence of the impurities on the connection of the automobile control arm and other parts is avoided, and the relative sliding of the automobile control arm and other parts is avoided.
The steel section is made of high-strength aluminum alloy materials, so that the material for manufacturing the automobile control arm can meet the requirements of strength and hardness, and the automobile control arm can have certain corrosion resistance; the physical and chemical performance tests are carried out on the automobile control arm, and the relevant tests of the shearing resistance, the strength and the hardness of the automobile control arm and the relevant chemical tests of corrosion resistance are detected, so that the factory-leaving quality of the automobile control arm is ensured.
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 and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A production process of an automobile control arm comprises the following steps:
s1: selecting a steel section with an appropriate size, turning the steel section into a size and a shape suitable for manufacturing an automobile control arm, and carrying out annealing process treatment on the steel section;
s2: bending and hot forging the steel section to obtain a rough forging piece, and then trimming the rough forging piece;
s3: heating the rough forging to 548 ℃ and keeping the temperature constant, so that metal compounds of various phases of the rough forging are contained in solid solution, and then cooling the finish forging of the compressor piston body at a natural speed;
s4: carrying out precision forging on the coarse forging to obtain a precision forging;
s5: heating the precision forging to 548 ℃, carrying out constant-temperature solution treatment, and then carrying out artificial cooling treatment;
s6: and impacting the surface of the finish forging by using high-speed fine sand to increase the surface roughness of the finish forging, and then carrying out finish machining on the finish forging by CMC (carboxy methyl cellulose) processing to obtain the automobile control arm.
2. The process for producing an automobile control arm according to claim 1, wherein: s6 then includes the following steps:
s7: carrying out laser engraving on the automobile control arm, and engraving the commodity serial number to the automobile control arm;
s8: and cleaning the automobile control arm.
3. The process for producing an automobile control arm according to claim 1, wherein: the steel section is made of high-strength aluminum alloy material.
4. The process for producing an automobile control arm according to claim 1, wherein: and (4) carrying out physical and chemical performance tests on the automobile control arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210387758.XA CN114833529A (en) | 2022-04-14 | 2022-04-14 | Production process of automobile control arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210387758.XA CN114833529A (en) | 2022-04-14 | 2022-04-14 | Production process of automobile control arm |
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| Publication Number | Publication Date |
|---|---|
| CN114833529A true CN114833529A (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210387758.XA Pending CN114833529A (en) | 2022-04-14 | 2022-04-14 | Production process of automobile control arm |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588990A (en) * | 2014-12-04 | 2015-05-06 | 安徽天裕汽车零部件制造有限公司 | Machining process of lower sway arm of automobile |
| CN108817307A (en) * | 2018-08-17 | 2018-11-16 | 海安金锻工业有限公司 | A kind of automobile control arm forging line and forging and forming technology |
| CN109014011A (en) * | 2018-07-11 | 2018-12-18 | 常州市丰乐精锻有限公司 | The forging technology of automobile engine oil supply system common rail pipe |
| CN110722078A (en) * | 2019-10-17 | 2020-01-24 | 浙江众通汽车零部件有限公司 | Synchronous forging scrap-removing and weight-reducing forging process |
| CN112899594A (en) * | 2021-02-24 | 2021-06-04 | 东莞冠熹精密五金制品有限公司 | 7003 forging process for aluminum series material |
-
2022
- 2022-04-14 CN CN202210387758.XA patent/CN114833529A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588990A (en) * | 2014-12-04 | 2015-05-06 | 安徽天裕汽车零部件制造有限公司 | Machining process of lower sway arm of automobile |
| CN109014011A (en) * | 2018-07-11 | 2018-12-18 | 常州市丰乐精锻有限公司 | The forging technology of automobile engine oil supply system common rail pipe |
| CN108817307A (en) * | 2018-08-17 | 2018-11-16 | 海安金锻工业有限公司 | A kind of automobile control arm forging line and forging and forming technology |
| CN110722078A (en) * | 2019-10-17 | 2020-01-24 | 浙江众通汽车零部件有限公司 | Synchronous forging scrap-removing and weight-reducing forging process |
| CN112899594A (en) * | 2021-02-24 | 2021-06-04 | 东莞冠熹精密五金制品有限公司 | 7003 forging process for aluminum series material |
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