CN107363480A - A kind of front anticollision beam of automobile steel and its heteromorphosis forming method - Google Patents
A kind of front anticollision beam of automobile steel and its heteromorphosis forming method Download PDFInfo
- Publication number
- CN107363480A CN107363480A CN201710595694.1A CN201710595694A CN107363480A CN 107363480 A CN107363480 A CN 107363480A CN 201710595694 A CN201710595694 A CN 201710595694A CN 107363480 A CN107363480 A CN 107363480A
- Authority
- CN
- China
- Prior art keywords
- steel
- heteromorphosis
- collision beam
- front anti
- pipe
- 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
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K7/00—Making railway appurtenances; Making vehicle parts
- B21K7/12—Making railway appurtenances; Making vehicle parts parts for locomotives or vehicles, e.g. frames, underframes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a kind of front anticollision beam of automobile steel and its heteromorphosis forming method, include the component of following percentage by weight：C 0.15~0.18%, Si≤0.30%, Mn 2.0~2.5%, Mo 1.0~1.5%, P≤0.01%, S 0.05~0.08%, Al 0.05~0.10%, remaining is Fe.The forming method comprises the following steps：（1）Forging；（2）Cut；（3）Heteromorphosis processing；（4）Heat treatment.A kind of front anticollision beam of automobile steel of the present invention and its heteromorphosis forming method, on the basis of rational steel formula, shaped by profiling forging method and inner high voltage heteromorphosis, so that prepared front anti-collision beam has integral structure, stress phenomena is there's almost no, bulk strength is high, and tough is good, stable performance, had a good application prospect in automobile buffer beam field.
Description
Technical field
The present invention relates to automotive safety guarantee part field, more particularly to a kind of front anticollision beam of automobile steel and
Its heteromorphosis forming method.
Background technology
Collision prevention girders be for mitigate when vehicle is collided absorb collision energy a kind of device, by girder, energy-absorption box and
The installing plate composition of automobile is connected, girder, energy-absorption box can effectively absorb collision energy when low speed collision occurs for vehicle, to the greatest extent
Infringement of the impact to chassis runner may be reduced, by thus having played its protective effect to vehicle.
Present front anticollision beam of automobile steel, carbon content is higher, and tensile strength is between 1000~1200MPa, elongation percentage
>=9%, its fragility is big, stability is poor, is easily broken off, and due to being cold-stamped part, its resilience is very big, and corrugation is serious, or even intensity
It is difficult to realize more than after certain value.
The content of the invention
The present invention solves the technical problem of provide a kind of front anticollision beam of automobile steel and its heteromorphosis shaping side
Method.
In order to solve the above technical problems, one aspect of the present invention is：A kind of front anticollision beam of automobile is provided to use
Steel, include the component of following percentage by weight：C 0.15~0.18%, Si≤0.30%, Mn 2.0~2.5%, Mo 1.0~
1.5%th, P≤0.01%, S 0.05~0.08%, Al 0.05~0.10%, remaining is Fe.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of steel abnormity chemical conversion is provided
The method of type front anticollision beam of automobile, comprises the following steps：
（1）Forging：The steel pipe of the certain flexibility of axis band is prepared into using profiling forging technology according to foregoing steel；
（2）Cut：By step（1）In obtained steel pipe Shot Blasting, and cut according to the size to obtain front anti-collision beam body；
（3）Heteromorphosis processing：Using internal high pressure forming processing method by step（1）Described steel pipe is prepared into rectangular cross-section
Chapped pipe；
（4）Heat treatment：By step（3）In obtained chapped pipe be placed in heating furnace, successively alternately double normalizing and two
Secondary tempering process, with removal process（1）Stress caused by middle forging, obtain the front anticollision beam of automobile.
In a preferred embodiment of the present invention, the step（1）In, the profiling forging technology is：By the steel
1100~1200 DEG C are heated to, constant temperature keeps 10~15h, suppresses forging method pulling processing through jumping-up and wide anvil, is cooled to room temperature；So
After be again heated to 1100~1200 DEG C, constant temperature keeps 5~10h, and the steel pipe with flexibility is forged into through jumping-up and narrow anvil spinning.
In a preferred embodiment of the present invention, the flexibility of the steel pipe is that bending radius is the 10~15 of outer diameter of steel pipes
Times.
In a preferred embodiment of the present invention, the step（3）In, the method for the heteromorphosis processing is：By step
（2）In steel pipe be put into the same or analogous drag intracavitary of front anti-collision beam shape, and by its both ends load sealing punch
Sealing, then upper mould is driven to go downwards to after the certain height of lower mould, most backward end-blocking using the sliding block of clamping pressure machine
Steel duct is passed through highly pressurised liquid, and the pressure of steel duct and upper line journey is matched, and until completing matched moulds, completes abnormity
Change is handled.
In a preferred embodiment of the present invention, the method that the pressure of the steel duct matches with upper line journey refers to
When being passed through highly pressurised liquid to steel duct, the distance between the pressure of steel duct and upper die and lower die H should meet following public affairs
Formula：
P≤2.5σS d/H
In formula：P is steel duct pressure, and d is thickness of steel pipe, and H is the distance between upper die and lower die.
In a preferred embodiment of the present invention, the step（4）In, the process conditions of the normalizing are：Heating-up temperature
750~950 DEG C, 60~90min of thermostatic hold-time.
In a preferred embodiment of the present invention, the step（4）In, the process conditions of the tempering are：Heating-up temperature
450~500 DEG C, 40~60min of thermostatic hold-time.
The beneficial effects of the invention are as follows：A kind of front anticollision beam of automobile steel of the present invention and its heteromorphosis forming method,
On the basis of rational steel formula, shaped by profiling forging method and inner high voltage heteromorphosis so that prepared is preceding anti-
Hitting beam has integral structure, there's almost no stress phenomena, bulk strength is high, and tough is good, stable performance, in automobile
Collision prevention girders field has a good application prospect.
Embodiment
Presently preferred embodiments of the present invention is described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly defined so as to be made to protection scope of the present invention.
The embodiment of the present invention includes：
Embodiment 1
A kind of front anticollision beam of automobile steel, include the component of following percentage by weight：C 0.15%、Si≤0.30%、Mn
2.0%th, Mo 1.0%, P≤0.01%, S 0.05%, Al 0.05%, remaining is Fe.
Using the method for above-mentioned steel heteromorphosis formed automobile front anti-collision beam, comprise the following steps：
（1）Forging：Above-mentioned steel are prepared into steel pipe using profiling forging technology；
The profiling forging technology is：By the heat steel to 1100 DEG C, constant temperature keeps 15h, and forging is suppressed through jumping-up and wide anvil
Method pulling processing is made, is cooled to room temperature；Then 1100 DEG C are again heated to, constant temperature keeps 10h, and band is forged into through jumping-up and narrow anvil spinning
The steel pipe of flexibility；
The flexibility of the steel pipe prepared is that bending radius is 10 times of outer diameter of steel pipes；
（2）Cut：By step（1）In obtained steel pipe Shot Blasting, and cut according to the size to obtain front anti-collision beam body；
（3）Heteromorphosis processing：Using internal high pressure forming processing method by step（1）Described steel pipe is prepared into rectangular cross-section
Chapped pipe；
Specifically handling process is：By step（2）Steel pipe after middle cutting be put into front anti-collision beam shape it is same or analogous under
In model cavity, and its both ends is loaded into sealing punch sealing, then using the sliding block of clamping pressure machine drive upper mould go downwards to away from
The height certain from lower mould, the most steel duct backward after end-blocking are passed through highly pressurised liquid, and make the pressure of steel duct and upper mould
Stroke matches, and until completing matched moulds, completes heteromorphosis processing；
The method that the pressure of the steel duct and upper line journey match refers to when being passed through highly pressurised liquid to steel duct, steel
The distance between pressure and upper die and lower die inside pipe H should meet below equation：
P≤2.5σS d/H
In formula：P is steel duct pressure, and d is thickness of steel pipe, and H is the distance between upper die and lower die.
（4）Heat treatment：By step（3）In obtained chapped pipe be placed in heating furnace, successively alternately double normalizing
With double tempering technique, with removal process（1）Stress caused by middle forging, obtain the front anticollision beam of automobile；
Specifically, the process conditions of the normalizing are：750 DEG C of heating-up temperature, thermostatic hold-time 90min；
The process conditions of the tempering are：450 DEG C of heating-up temperature, thermostatic hold-time 60min.
The front anticollision beam of automobile that the above method obtains is rectangular cross-section, and bending radius is 10 times of abnormity of outer diameter of steel pipes
Steel pipe.
Embodiment 2
A kind of front anticollision beam of automobile steel, include the component of following percentage by weight：C 0.18%、Si≤0.30%、Mn
2.5%th, Mo 1.5%, P≤0.01%, S 0.08%, Al 0.10%, remaining is Fe.
Using the method for above-mentioned steel heteromorphosis formed automobile front anti-collision beam, comprise the following steps：
（1）Forging：Above-mentioned steel are prepared into steel pipe using profiling forging technology；
The profiling forging technology is：By the heat steel to 1200 DEG C, constant temperature keeps 10h, and forging is suppressed through jumping-up and wide anvil
Method pulling processing is made, is cooled to room temperature；Then 1200 DEG C are again heated to, constant temperature keeps 5h, and band is forged into through jumping-up and narrow anvil spinning
The steel pipe of flexibility；
The flexibility of the steel pipe prepared is that bending radius is 15 times of outer diameter of steel pipes；
（2）Cut：By step（1）In obtained steel pipe Shot Blasting, and cut according to the size to obtain front anti-collision beam body；
（3）Heteromorphosis processing：Using internal high pressure forming processing method by step（1）Described steel pipe is prepared into rectangular cross-section
Chapped pipe；
Specifically handling process is：By step（2）Steel pipe after middle cutting be put into front anti-collision beam shape it is same or analogous under
In model cavity, and its both ends is loaded into sealing punch sealing, then using the sliding block of clamping pressure machine drive upper mould go downwards to away from
The height certain from lower mould, the most steel duct backward after end-blocking are passed through highly pressurised liquid, and make the pressure of steel duct and upper mould
Stroke matches, and until completing matched moulds, completes heteromorphosis processing；
The method that the pressure of the steel duct and upper line journey match refers to when being passed through highly pressurised liquid to steel duct, steel
The distance between pressure and upper die and lower die inside pipe H should meet below equation：
P≤2.5σS d/H
In formula：P is steel duct pressure, and d is thickness of steel pipe, and H is the distance between upper die and lower die.
（4）Heat treatment：By step（3）In obtained chapped pipe be placed in heating furnace, successively alternately double normalizing
With double tempering technique, with removal process（1）Stress caused by middle forging, obtain the front anticollision beam of automobile；
Specifically, the process conditions of the normalizing are：950 DEG C of heating-up temperature, thermostatic hold-time 60min；
The process conditions of the tempering are：500 DEG C of heating-up temperature, thermostatic hold-time 40min.
The front anticollision beam of automobile that the above method obtains is rectangular cross-section, and bending radius is 15 times of abnormity of outer diameter of steel pipes
Steel pipe.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, it is included within the scope of the present invention.
Claims (8)
1. a kind of front anticollision beam of automobile steel, it is characterised in that include the component of following percentage by weight：C 0.15~
0.18%th, Si≤0.30%, Mn 2.0~2.5%, Mo 1.0~1.5%, P≤0.01%, S 0.05~0.08%, Al 0.05~
0.10%, remaining is Fe.
2. a kind of method of steel heteromorphosis formed automobile front anti-collision beam using described in claim 1, it is characterised in that including
Following steps：
（1）Forging：The steel of the certain flexibility of axis band is prepared into using profiling forging technology according to the steel described in claim 1
Pipe；
（2）Cut：By step（1）In obtained steel pipe Shot Blasting, and cut according to the size to obtain front anti-collision beam body；
（3）Heteromorphosis processing：Using internal high pressure forming processing method by step（1）Described steel pipe is prepared into rectangular cross-section
Chapped pipe；
（4）Heat treatment：By step（3）In obtained chapped pipe be placed in heating furnace, successively alternately double normalizing and two
Secondary tempering process, with removal process（1）Stress caused by middle forging, obtain the front anticollision beam of automobile.
3. the method for steel heteromorphosis formed automobile front anti-collision beam according to claim 2, it is characterised in that the step
（1）In, the profiling forging technology is：By the heat steel to 1100~1200 DEG C, constant temperature keeps 10~15h, through jumping-up
Forging method pulling processing is suppressed with wide anvil, is cooled to room temperature；Then 1100~1200 DEG C are again heated to, constant temperature keeps 5~10h, warp
Jumping-up and narrow anvil spinning are forged into the steel pipe with flexibility.
4. the method for the steel heteromorphosis formed automobile front anti-collision beam according to Claims 2 or 3, it is characterised in that described
The flexibility of steel pipe is that bending radius is 10~15 times of outer diameter of steel pipes.
5. the method for steel heteromorphosis formed automobile front anti-collision beam according to claim 2, it is characterised in that the step
（3）In, the method for the heteromorphosis processing is：By step（2）In steel pipe be put into it is same or similar with front anti-collision beam shape
Drag intracavitary, and its both ends is loaded into sealing punch sealing, then drives upper mould descending using the sliding block of clamping pressure machine
To apart from the certain height of lower mould, the steel duct after most backward end-blocking is passed through highly pressurised liquid, and make the pressure of steel duct with
Upper line journey matches, and until completing matched moulds, completes heteromorphosis processing.
6. the method for steel heteromorphosis formed automobile front anti-collision beam according to claim 5, it is characterised in that the steel pipe
Internal pressure refers to when being passed through highly pressurised liquid to steel duct with the method that upper line journey matches, the pressure of steel duct
The distance between upper die and lower die H should meet below equation：
P≤2.5σS d/H
In formula：P is steel duct pressure, and d is thickness of steel pipe, and H is the distance between upper die and lower die.
7. the method for steel heteromorphosis formed automobile front anti-collision beam according to claim 2, it is characterised in that the step
（4）In, the process conditions of the normalizing are：750~950 DEG C of heating-up temperature, 60~90min of thermostatic hold-time.
8. the method for steel heteromorphosis formed automobile front anti-collision beam according to claim 2, it is characterised in that the step
（4）In, the process conditions of the tempering are：450~500 DEG C of heating-up temperature, 40~60min of thermostatic hold-time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595694.1A CN107363480A (en) | 2017-07-20 | 2017-07-20 | A kind of front anticollision beam of automobile steel and its heteromorphosis forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595694.1A CN107363480A (en) | 2017-07-20 | 2017-07-20 | A kind of front anticollision beam of automobile steel and its heteromorphosis forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107363480A true CN107363480A (en) | 2017-11-21 |
Family
ID=60308413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710595694.1A Pending CN107363480A (en) | 2017-07-20 | 2017-07-20 | A kind of front anticollision beam of automobile steel and its heteromorphosis forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107363480A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60102628D1 (en) * | 2000-07-18 | 2004-05-13 | Gen Electric | Process for repairing combustion chamber jackets |
| CN101260776A (en) * | 2008-04-28 | 2008-09-10 | 长安福特马自达汽车有限公司 | Ultra-high tensile steel vehicle door anti-collision joist and method of manufacture |
| CN102390335A (en) * | 2011-09-30 | 2012-03-28 | 力帆实业(集团)股份有限公司 | Front bumper anti-collision beam and processing method thereof |
| CN103627952A (en) * | 2013-12-06 | 2014-03-12 | 芜湖普威技研有限公司 | Steel for anti-collision beam of automobile side door and machining process of steel |
| CN103658294A (en) * | 2013-12-31 | 2014-03-26 | 一重集团大连设计研究院有限公司 | High-pressure forming method in pipe |
| CN106222550A (en) * | 2016-08-03 | 2016-12-14 | 宁波宏协承汽车部件有限公司 | A kind of high-strength automotive anti-collision beam and preparation method thereof |
| CN106347268A (en) * | 2016-10-27 | 2017-01-25 | 张洪霞 | Automobile anti-collision beam and manufacturing method |
-
2017
- 2017-07-20 CN CN201710595694.1A patent/CN107363480A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60102628D1 (en) * | 2000-07-18 | 2004-05-13 | Gen Electric | Process for repairing combustion chamber jackets |
| CN101260776A (en) * | 2008-04-28 | 2008-09-10 | 长安福特马自达汽车有限公司 | Ultra-high tensile steel vehicle door anti-collision joist and method of manufacture |
| CN102390335A (en) * | 2011-09-30 | 2012-03-28 | 力帆实业(集团)股份有限公司 | Front bumper anti-collision beam and processing method thereof |
| CN103627952A (en) * | 2013-12-06 | 2014-03-12 | 芜湖普威技研有限公司 | Steel for anti-collision beam of automobile side door and machining process of steel |
| CN103658294A (en) * | 2013-12-31 | 2014-03-26 | 一重集团大连设计研究院有限公司 | High-pressure forming method in pipe |
| CN106222550A (en) * | 2016-08-03 | 2016-12-14 | 宁波宏协承汽车部件有限公司 | A kind of high-strength automotive anti-collision beam and preparation method thereof |
| CN106347268A (en) * | 2016-10-27 | 2017-01-25 | 张洪霞 | Automobile anti-collision beam and manufacturing method |
Non-Patent Citations (1)
| Title |
|---|
| 李雪 等: "核电异形管板锻件的锻造工艺研究", 《大型铸锻件》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106607538B (en) | The manufacturing method of helicopter AL-Zn-Mg-Cu aluminium alloy disk forging part | |
| CN111790765B (en) | Method and apparatus for manufacturing aluminum alloy part | |
| CN102458767B (en) | Method for manufacturing coil spring | |
| CN106460107A (en) | Al-casting alloy | |
| CN102134685A (en) | Method of manufacturing metal forming component for an automobile part | |
| CN106734465B (en) | Method based on the hot press-formed production automobile B-column of multilayer common metal composite plate | |
| CA2800991C (en) | Process for manufacturing a steel tube for air bags | |
| CN103949984B (en) | A kind of manufacturing process of wear resistant and impact resistant type knockout pipe and welding method thereof | |
| CN107363480A (en) | A kind of front anticollision beam of automobile steel and its heteromorphosis forming method | |
| CN103060675B (en) | A kind of 05 grade high-strength nut anneal-free coil rod and production method thereof | |
| CN105033123A (en) | Processing method for hot rolling titanium spring with spring wire diameter of 12 to 45mm | |
| CN102990293A (en) | Forging method of automotive stabilizer bar | |
| CN102994906B (en) | A kind of method of ball valve body | |
| CN102304613B (en) | Steel pipe for supplemental restraint system and manufacture method thereof | |
| CN105499358B (en) | Vehicle body floor longitudinal beam reinforcing plate and hot stamping process thereof | |
| CN108774678A (en) | The heat treatment method of super 13Cr tubing and casings | |
| CN103667936A (en) | Nut preparation method | |
| CN103627952A (en) | Steel for anti-collision beam of automobile side door and machining process of steel | |
| CN106583614A (en) | Heat drawing forming method for power battery aluminum shell | |
| CN103060699B (en) | Processing method of cold-work die steel | |
| CN102703666B (en) | Low-carbon alloy steel spheroidizing method | |
| WO2010130738A1 (en) | Method for manufacturing fixing members adapted for railway sleepers by cold forming | |
| CN106498142A (en) | A kind of stress shot blasting method in variable cross-section reed with high strength manufacture | |
| CN106043463A (en) | Aluminum alloy anti-collision profile for large-size vehicle body and its production process | |
| CN107598048A (en) | A kind of forging method of cold roll blank |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171121 |