CN109722503A - The processing technology of hollow stabilizing rod end - Google Patents
The processing technology of hollow stabilizing rod end Download PDFInfo
- Publication number
- CN109722503A CN109722503A CN201711026041.8A CN201711026041A CN109722503A CN 109722503 A CN109722503 A CN 109722503A CN 201711026041 A CN201711026041 A CN 201711026041A CN 109722503 A CN109722503 A CN 109722503A
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- China
- Prior art keywords
- rod end
- stabilizing rod
- hollow stabilizing
- hollow
- processing technology
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Abstract
The invention discloses a kind of processing technologys of hollow stabilizing rod end, comprising the following steps: a, is hot-forged to hollow stabilizing rod end, punching；B, when the temperature of the hollow stabilizing rod end after completion hot forging, punching is cooled to 750 DEG C~800 DEG C, water base quenching treatment is carried out；C, tempering is carried out to quenched hollow stabilizing rod end.The present invention has carried out end heat treatment after stabilizer bar end molding, so that the metallographic structure of hollow stabilizing rod end is changed into martensitic structure, compared with existing hollow stabilizing rod end, hardness and strength, which have, significantly to be promoted, and substantially prolongs the fatigue life of hollow stabilizing rod end.
Description
Technical field
The present invention relates to automobile stabilizer bar manufacturing technology more particularly to a kind of processing technologys of hollow stabilizing rod end.
Background technique
Stabiliser bar is the important part in automobile suspension system, and its main function is to prevent vehicle body in vehicle zig zag
It rolls.Enhancing with automobile industry to environmental protection and energy-saving and emission-reduction requirement, automobile are also higher and higher to light-weighted requirement,
Solid stabilizing rod before is substituted by lighter hollow stabilizing rod more and more, and light-weighted propulsion is to hollow stabilizing rod
Higher requirements are also raised fatigue life.
The processing technology of existing hollow stabilizing rod end is put into after hollow stabilizing rod end is heated to 900 DEG C or so
It is hot-forged in forging press, punching, stabilizer bar end finished product is obtained after air-cooled.The hollow stabilization manufactured using this processing technology
The metallographic structure of rod end head is pearlite+ferrite, as shown in figure 3, swing of its hardness in 195HV, on fatigue tester
Cycle-index is at 8000 times or so.It is broken in advance in actual use using the hollow stabilizing rod end that prior art manufactures
The case where happen occasionally, therefore need to improve existing hollow stabilizing rod end machining technique, to improve hollow stabilization
The fatigue life of rod end head.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of to can be improved hollow stabilizing rod end fatigue life
Hollow stabilizing rod end machining technique.
In order to solve the above technical problems, the technical solution used in the present invention is:
A kind of processing technology of hollow stabilizing rod end, comprising the following steps:
A, hollow stabilizing rod end is hot-forged, punching；
B, when the temperature of the hollow stabilizing rod end after completion hot forging, punching is cooled to 750 DEG C~800 DEG C, water base quenching is carried out
Processing；
C, tempering is carried out to quenched hollow stabilizing rod end.
After adopting the above technical scheme, the present invention has at least the following advantages and feature:
The processing technology of hollow stabilizing rod end according to an embodiment of the present invention has carried out end heat after stabilizer bar end molding
Processing, so that the metallographic structure of hollow stabilizing rod end is changed into martensitic structure, compared with existing hollow stabilizing rod end,
Hardness and strength, which have, significantly to be promoted, and the fatigue life of hollow stabilizing rod end is substantially prolonged.
Detailed description of the invention
Fig. 1 shows the flow diagram of the processing technology of hollow stabilizing rod end according to an embodiment of the invention.
It is hollow steady Fig. 2 shows being produced using hollow stabilizing rod end machining technique according to an embodiment of the invention
The metallographic structure figure of fixed pole end.
Fig. 3 shows the metallographic of the hollow stabilizing rod end produced using existing hollow stabilizing rod end machining technique
Organization chart.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Please refer to Fig. 1.A kind of processing technology of hollow stabilizing rod end according to an embodiment of the invention, including following step
It is rapid:
A, hollow stabilizing rod end is hot-forged, punching；
B, when the temperature of the hollow stabilizing rod end after completion hot forging, punching is cooled to 750 DEG C~800 DEG C, water base quenching is carried out
Processing；
C, tempering is carried out to quenched hollow stabilizing rod end.
It in above-mentioned step a, is stood after hollow stabilizing rod end is heated to 880 DEG C~920 DEG C by induction coil
Be put into forging press be hot-forged, punching.Preferably, forging press is put into after hollow stabilizing rod end being heated to 900 DEG C
In be hot-forged, punching.
In above-mentioned step b, complete hot forging, the hollow stabilizing rod end after punching be cooled in air 750 DEG C~
It at 800 DEG C, is put into the water-based hardening liquid in quenching bath and carries out water base quenching treatment, the temperature of water-based hardening liquid is 20 DEG C~50
DEG C, the pH value of quenching liquid is 6.8~7.9, and the cool time is 8 seconds~12 seconds.Preferably, hollow steady after completing hot forging, punching
When fixed pole end is cooled to 770 DEG C in air, it is put into the water-based hardening liquid in quenching bath and carries out water base quenching treatment, it is water base
The temperature of quenching liquid is 40 DEG C, and the pH value of quenching liquid is 7.2, and the cool time is 10 seconds.
It is that quenched hollow stabilizing rod end is put into tempering furnace to be tempered in above-mentioned step c, tempering temperature
At 240 DEG C~260 DEG C, tempering time is 40 minutes~50 minutes, air-cooled after tempering for degree control.Preferably, tempering temperature 250
DEG C, tempering time is 45 minutes.
Compared with existing hollow stabilizing rod end machining technique, hollow stabilizing rod end according to an embodiment of the invention
Processing technology the metallographic structure of hollow stabilizing rod end can be made by being changed into martensitic structure by pearlite+ferritic structure,
As shown in Fig. 2, hardness is improved by 195HV to 416HV, the wobble cycle number on fatigue tester is promoted to by 8000 times
20000 times or more, substantially prolong the fatigue life of hollow stabilizing rod end.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (4)
1. a kind of processing technology of hollow stabilizing rod end, which comprises the following steps:
A, hollow stabilizing rod end is hot-forged, punching；
B, when the temperature of the hollow stabilizing rod end after completion hot forging, punching is cooled to 750 DEG C~800 DEG C, water base quenching is carried out
Processing；
C, tempering is carried out to quenched hollow stabilizing rod end.
2. the processing technology of hollow stabilizing rod end according to claim 1, which is characterized in that in the step a,
Be be immediately placed in forging press after hollow stabilizing rod end to be heated to 880 DEG C~920 DEG C be hot-forged, punching.
3. the processing technology of hollow stabilizing rod end according to claim 1, which is characterized in that in the step b,
The temperature of water-based hardening liquid is 20 DEG C~50 DEG C, and the pH value of quenching liquid is 6.8~7.9, and the cool time is 8 seconds~12 seconds.
4. the processing technology of hollow stabilizing rod end according to claim 1, which is characterized in that in the step c described,
It is that quenched hollow stabilizing rod end is put into tempering furnace to be tempered, tempering temperature is controlled at 240 DEG C~260 DEG C, is returned
The fiery time is 40 minutes~50 minutes, air-cooled after tempering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711026041.8A CN109722503A (en) | 2017-10-27 | 2017-10-27 | The processing technology of hollow stabilizing rod end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711026041.8A CN109722503A (en) | 2017-10-27 | 2017-10-27 | The processing technology of hollow stabilizing rod end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109722503A true CN109722503A (en) | 2019-05-07 |
Family
ID=66290919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711026041.8A Pending CN109722503A (en) | 2017-10-27 | 2017-10-27 | The processing technology of hollow stabilizing rod end |
Country Status (1)
| Country | Link |
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| CN (1) | CN109722503A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663020A (en) * | 2020-05-26 | 2020-09-15 | 浙江美力汽车弹簧有限公司 | Method for improving fatigue strength of stabilizer bar through internal and external hardness grading |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100031A (en) * | 2006-07-05 | 2008-01-09 | 上海汽车股份有限公司中国弹簧厂 | Heat forming technology for automobile stable bar with complex end |
| CN102189910A (en) * | 2010-03-19 | 2011-09-21 | 上海中国弹簧制造有限公司 | Manufacturing process of hollow stabilizer rod of automobile |
| CN102343499A (en) * | 2010-07-30 | 2012-02-08 | 上海中国弹簧制造有限公司 | Processing technique of stabilizer bar with metal limiting ring |
| CN104395487A (en) * | 2012-05-25 | 2015-03-04 | 新日铁住金株式会社 | Hollow stabilizer, and steel pipe for hollow stabilizers and method for production thereof |
| WO2016093199A1 (en) * | 2014-12-08 | 2016-06-16 | 日本発條株式会社 | Production method for stabilizers |
| CN106475740A (en) * | 2015-08-28 | 2017-03-08 | 上海中国弹簧制造有限公司 | A kind of manufacturing process of heavily stressed hollow stabilizing rod |
-
2017
- 2017-10-27 CN CN201711026041.8A patent/CN109722503A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100031A (en) * | 2006-07-05 | 2008-01-09 | 上海汽车股份有限公司中国弹簧厂 | Heat forming technology for automobile stable bar with complex end |
| CN102189910A (en) * | 2010-03-19 | 2011-09-21 | 上海中国弹簧制造有限公司 | Manufacturing process of hollow stabilizer rod of automobile |
| CN102343499A (en) * | 2010-07-30 | 2012-02-08 | 上海中国弹簧制造有限公司 | Processing technique of stabilizer bar with metal limiting ring |
| CN104395487A (en) * | 2012-05-25 | 2015-03-04 | 新日铁住金株式会社 | Hollow stabilizer, and steel pipe for hollow stabilizers and method for production thereof |
| WO2016093199A1 (en) * | 2014-12-08 | 2016-06-16 | 日本発條株式会社 | Production method for stabilizers |
| CN106475740A (en) * | 2015-08-28 | 2017-03-08 | 上海中国弹簧制造有限公司 | A kind of manufacturing process of heavily stressed hollow stabilizing rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663020A (en) * | 2020-05-26 | 2020-09-15 | 浙江美力汽车弹簧有限公司 | Method for improving fatigue strength of stabilizer bar through internal and external hardness grading |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190507 |
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| RJ01 | Rejection of invention patent application after publication |