CN104527803B - A kind of side-wall inner-plate of automobile - Google Patents
A kind of side-wall inner-plate of automobile Download PDFInfo
- Publication number
- CN104527803B CN104527803B CN201410785093.3A CN201410785093A CN104527803B CN 104527803 B CN104527803 B CN 104527803B CN 201410785093 A CN201410785093 A CN 201410785093A CN 104527803 B CN104527803 B CN 104527803B
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- Prior art keywords
- wall inner
- post body
- soft zone
- plate
- intensity
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/007—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of special steel or specially treated steel, e.g. stainless steel or locally surface hardened steel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention relates to the side-wall inner-plate of a kind of automobile, including side-wall inner-plate body；It is characterized in that: the flange face that the upper surface at described A post body is and top cover overlaps, flange face is the ferrite and pearlite tissue of intensity 500～700MPa or is bainite structure；The top of described B post body is hard area, and the bottom of B post body is soft zone, is connected by First Transition district between hard area and soft zone；Described side-wall inner-plate body is obtained by unimach heat forming technology, and intensity is the martensitic structure of 1300～1500MPa；It is connected by the second transition region between lower end and the soft zone of B post body of described side-wall inner-plate body, the second rectangular shape of transition region, surrounds the soft zone of B post body.The present invention changes the flange face overlapped with top cover into soft zone, increases toughness, plays the effect of part energy-absorbing；B post part has good intensity, has controlled deformation.
Description
Technical field
The present invention relates to the side-wall inner-plate of a kind of automobile, belong to vehicle part technical field.
Background technology
Vehicle side is the key position that body of a motor car manufactures, and its workmanship directly influences outward appearance and the performance of automobile.The generally annular structure of side-wall inner-plate, the side in loop configuration is B post, and the Main Function of B post is to provide protection when there is side collision, and wishes that B post produces controlled deformation and is likely to protection passenger with chi when sideways collisions, is mainly used in energy-absorbing.But meanwhile, side-wall inner-plate itself needs again to ensure certain intensity.
In prior art, the intensity of heat-formable material own is a lot, but toughness is poor, if reaching material limits after colliding, then can ftracture.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that the side-wall inner-plate of a kind of automobile, change the flange face overlapped with top cover into soft zone, intensity is at below 800MPa, it is possible to increases toughness, plays the effect of part energy-absorbing；It addition, B post part has good intensity, there is controlled deformation, and the transition between B post and side-wall inner-plate meets design requirement, it is ensured that the intensity of gusset.
According to technical scheme provided by the invention, the side-wall inner-plate of described automobile, including side-wall inner-plate body, side-wall inner-plate body is loop configuration, and the side of this loop configuration is B post body, and the upside of loop configuration is A post body；It is characterized in that: the flange face that the upper surface at described A post body is and top cover overlaps, flange face is in unimach heat forming technology, by cooling down at a slow speed the ferrite and pearlite tissue that intensity is 500～700MPa obtained or being bainite structure；The top of described B post body is hard area, and the bottom of B post body is soft zone, is connected by First Transition district between hard area and soft zone；Described hard area is obtained by unimach heat forming technology, and intensity is the martensitic structure of 1300～1500MPa；Described soft zone is in unimach heat forming technology, by cooling down at a slow speed the ferrite and pearlite tissue that intensity is 500～700MPa obtained or being bainite structure；Described side-wall inner-plate body is obtained by unimach heat forming technology, and intensity is the martensitic structure of 1300～1500MPa；It is connected by the second transition region between lower end and the soft zone of B post body of described side-wall inner-plate body, the second rectangular shape of transition region, surrounds the soft zone of B post body.
Further, the soft zone of described B post body accounts for the 1/3 of B post body height.
Further, the height in described First Transition district is about 50mm, and the height of the second transition region is about 50mm.
The invention have the advantages that the main part of (1) side-wall inner-plate body adopts intensity to be the martensitic structure of 1300～1500MPa, it is possible to provide protection when there is side collision；(2) changing the flange face of A post surface area with top cover overlap joint into soft zone, intensity is the ferrite and pearlite tissue of 500～700MPa or is bainite structure, it is possible to increases toughness, plays the effect of part energy-absorbing；(3) B post part has good intensity, plays the effect of protection passenger, and B post has controlled deformation simultaneously；It addition, the transition between B post and side-wall inner-plate meets design requirement, it is ensured that the intensity of gusset.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the schematic diagram on described side-wall inner-plate with top cover overlap.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the invention will be further described.
Shown in Fig. 1～Fig. 2: as described in the side-wall inner-plate of automobile include side-wall inner-plate body 1, B post body 2, A post body 3, flange face 4, hard area 5, soft zone 6, First Transition district the 7, second transition region 8 etc..
As it is shown in figure 1, the present invention includes side-wall inner-plate body 1, side-wall inner-plate body 1 is loop configuration, and the side of this loop configuration is B post body 2, and the upside of loop configuration is A post body 3；As shown in Figure 2, upper surface at described A post body 3 is and the flange face 4 of top cover overlap joint, flange face 4 is in unimach heat forming technology, by cooling down at a slow speed the ferrite and pearlite tissue that intensity is 500～700MPa obtained or being bainite structure.
As it is shown in figure 1, the bottom that top is hard area 5, B post body 2 of described B post body 2 is soft zone 6, connected by First Transition district 7 between hard area 5 and soft zone 6；Described hard area 5 is obtained by unimach heat forming technology, and intensity is the martensitic structure of 1300～1500MPa；Described soft zone 6 is in unimach heat forming technology, by cooling down at a slow speed the ferrite and pearlite tissue that intensity is 500～700MPa obtained or being bainite structure；Described side-wall inner-plate body 1 is obtained by unimach heat forming technology, and intensity is the martensitic structure of 1300～1500MPa；It is connected by the second transition region 8 between the lower end of described side-wall inner-plate body 1 and the soft zone 6 of B post body 2, the second rectangular shape of transition region 8, surrounds the soft zone 6 of B post body 2；
The soft zone 6 of described B post body 2 accounts for the 1/3 of B post body 2 height；
The height in described First Transition district 7 is about 50mm, and the height of the second transition region 8 is about 50mm.
The main part of the side-wall inner-plate body of the present invention adopts intensity to be the martensitic structure of 1300～1500MPa, it is possible to provide protection when there is side collision.It addition, the flange face by A post surface area with top cover overlap joint changes soft zone into, intensity is the ferrite and pearlite tissue of 500～700MPa or is bainite structure, it is possible to increases toughness, plays the effect of part energy-absorbing.And the present invention is by the employing hard area, top of B post body, bottom adopts soft zone, can provide protection on the one hand when there is side collision, and produce controlled deformation when sideways collisions to protect head of passenger injury-free as much as possible.It addition, be connected by the second transition region between the soft zone of B post body and side-wall inner-plate body, the second transition region surrounds soft enclosing well, it is ensured that connection effective, firm between B post body and side-wall inner-plate body.
The manufacture method of the present invention, mainly comprises the steps that the profile tablet of side-wall inner-plate is put into heating furnace heating austenitizing by (1), and in-furnace temperature is 900 DEG C, and heat time heating time is 5 minutes；(2) being moved in mould by the profile tablet heated, quenching in the main part of side-wall inner-plate body and the hard area of B post body, obtains the martensitic structure that intensity is 1300～1500MPa；Simultaneously, A post upper surface adopts Resistant heating with the flange face of top cover overlap and the soft zone of B post body or adopts the mode of insulation, delay rate of cooling, make soft zone can not horse the Worker's Stadium smoothly, obtain ferrite and pearlite tissue or bainite structure by cooling at a slow speed.
Claims (3)
1. a side-wall inner-plate for automobile, including side-wall inner-plate body (1), side-wall inner-plate body (1) is loop configuration, and the side of this loop configuration is B post body (2), and the upside of loop configuration is A post body (3)；It is characterized in that: the upper surface described A post body (3) is and the flange face (4) of top cover overlap joint, flange face (4) is in unimach heat forming technology, by cooling down at a slow speed the ferrite and pearlite tissue that intensity is 500～700MPa obtained or being bainite structure；The top of described B post body (2) is hard area (5), and the bottom of B post body (2) is soft zone (6), is connected by First Transition district (7) between hard area (5) and soft zone (6)；Described hard area (5) is obtained by unimach heat forming technology, and intensity is the martensitic structure of 1300～1500MPa；Described soft zone (6) is in unimach heat forming technology, by cooling down at a slow speed the ferrite and pearlite tissue that intensity is 500～700MPa obtained or being bainite structure；Described side-wall inner-plate body (1) is obtained by unimach heat forming technology, and intensity is the martensitic structure of 1300～1500MPa；Being connected by the second transition region (8) between lower end and the soft zone (6) of B post body (2) of described side-wall inner-plate body (1), the second transition region (8) is shape at right angles, surrounds the soft zone (6) of B post body (2).
2. the side-wall inner-plate of automobile as claimed in claim 1, is characterized in that: the soft zone (6) of described B post body (2) accounts for the 1/3 of B post body (2) height.
3. the side-wall inner-plate of automobile as claimed in claim 1, is characterized in that: the height of described First Transition district (7) is 50mm, and the height of the second transition region (8) is 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410785093.3A CN104527803B (en) | 2014-12-17 | 2014-12-17 | A kind of side-wall inner-plate of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410785093.3A CN104527803B (en) | 2014-12-17 | 2014-12-17 | A kind of side-wall inner-plate of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104527803A CN104527803A (en) | 2015-04-22 |
| CN104527803B true CN104527803B (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410785093.3A Active CN104527803B (en) | 2014-12-17 | 2014-12-17 | A kind of side-wall inner-plate of automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN104527803B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017098304A1 (en) | 2015-12-09 | 2017-06-15 | Arcelormittal | Method for producing an automotive structural part comprising a lowerside sill and a lower front pillar |
| DE102021114467A1 (en) | 2021-06-05 | 2022-12-08 | Ford Global Technologies Llc | Body pillar, in particular B-pillar, of a motor vehicle with inclined strength transition areas |
| CN114889699A (en) * | 2022-05-30 | 2022-08-12 | 重庆长安汽车股份有限公司 | Automobile front door ring and manufacturing method thereof and automobile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005219624A (en) * | 2004-02-05 | 2005-08-18 | Nissan Motor Co Ltd | Vehicle body structure |
| CN102762437A (en) * | 2009-12-13 | 2012-10-31 | 耶斯塔姆普硬技术股份公司 | B-pillar for a vehicle |
| CN203199035U (en) * | 2013-04-11 | 2013-09-18 | 北京汽车股份有限公司 | Side wall lower spandrel beam front reinforcing plate and automobile |
| CN203318522U (en) * | 2013-07-08 | 2013-12-04 | 广州汽车集团股份有限公司 | Automobile B column assembly structure and automobile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2754603B1 (en) * | 2013-01-10 | 2017-07-19 | Volvo Car Corporation | Method, vehicle reinforcement & vehicle |
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2014
- 2014-12-17 CN CN201410785093.3A patent/CN104527803B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005219624A (en) * | 2004-02-05 | 2005-08-18 | Nissan Motor Co Ltd | Vehicle body structure |
| CN102762437A (en) * | 2009-12-13 | 2012-10-31 | 耶斯塔姆普硬技术股份公司 | B-pillar for a vehicle |
| CN203199035U (en) * | 2013-04-11 | 2013-09-18 | 北京汽车股份有限公司 | Side wall lower spandrel beam front reinforcing plate and automobile |
| CN203318522U (en) * | 2013-07-08 | 2013-12-04 | 广州汽车集团股份有限公司 | Automobile B column assembly structure and automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104527803A (en) | 2015-04-22 |
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Address after: 214115 Hongda Road, Wuxi City, Jiangsu Province, No. 111 Patentee after: Wuxi Lang Xian lightweight Polytron Technologies Inc Address before: 214115 Hongda Road, Wuxi City, Jiangsu Province, No. 111 Patentee before: Wuxi Co., Ltd of Lang Xian motor vehicle assembly research and development centre |
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