CN110508678A - The processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming - Google Patents
The processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming Download PDFInfo
- Publication number
- CN110508678A CN110508678A CN201910821592.6A CN201910821592A CN110508678A CN 110508678 A CN110508678 A CN 110508678A CN 201910821592 A CN201910821592 A CN 201910821592A CN 110508678 A CN110508678 A CN 110508678A
- Authority
- CN
- China
- Prior art keywords
- stiffening plate
- blanking
- blanking piece
- automobile
- side wall
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- 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
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
Abstract
The invention discloses a kind of processing technologys of the automobile-used side wall stiffening plate of high-strength thermal forming, comprising the following specific steps carrying out blanking working process on punching machine, obtain blanking piece；Trimming processing is carried out to blanking piece, treated blanking piece is sent into heating furnace and is heated；Blanking piece after heat treatment is sent into heating furnace; heating carries out austenitizing in the heating furnace with nitrogen protection atmosphere; after held for some time, blanking piece is quickly placed into the mold with cooling device carry out it is stamping, in forming process simultaneously occur quenching and lonneal processing；Hot forming treated blanking piece is sent into laser cutting machine and carries out cutting process, strengthened panel products.Stiffening plate produced by the invention reduces material thickness, reduces material consumption, and part quality lightens, and reduces oil consumption.
Description
Technical field
The invention belongs to automobile accessory technical fields, and in particular to the processing work of the automobile-used side wall stiffening plate of high-strength thermal forming
Skill.
Background technique
Traditional automobile-used side wall stiffening plate mostly uses two-phase high strength steel plate, side wall stiffening plate material specification select 1.4mm with
On enhance side crash performance, however the increase of material specification will lead to the increase of product net weight, and the lightweight of vehicle cannot be guaranteed,
Complete-vehicle oil consumption also will increase, and side wall stiffening plate is complex-shaped, the high-strength steel of material 420/780DP or more be used cold
The rebound for rushing technique part is difficult to control, and the low stability of size qualification rate is poor, and the extensibility of high-strength plate is poor, is easy to appear hidden
Hurt cracking phenomena.In consideration of it, it is necessary to study a kind of processing technologys of the automobile-used side wall stiffening plate of high-strength thermal forming.
Summary of the invention
To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of automobile-used side walls of high-strength thermal forming to reinforce
The processing technology of plate reduces material thickness while proof strength requires.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
The processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming, comprising the following specific steps
S1, blanking: after material base is cleaned up, getting out blanking die, and blanking working process is carried out on punching machine, obtains blanking
Piece；
S2, heating: carrying out trimming processing to blanking piece, and treated blanking piece is sent into heating furnace and is heated；
S3, hot forming: the blanking piece after heat treatment is sent into heating furnace, is added in the heating furnace with nitrogen protection atmosphere
Heat carries out austenitizing, after held for some time, blanking piece is quickly placed into the mold with cooling device and is struck out
Quenching and lonneal processing occur simultaneously in forming process for shape；
S4, it hot forming treated blanking piece is sent into laser cutting machine carries out cutting process, by the shape cutting of stiffening plate
Out, strengthened panel products.
Preferably, in abovementioned steps S1, spray cleaning is carried out three times to material base using clear water, clear water temperature is 45 ~ 55 DEG C,
A length of 20 ~ 30min when cleaning every time.
Preferably, in abovementioned steps S2, furnace temp is 880 ~ 930 DEG C, and heating time is 1 ~ 1.5h, heating equipment choosing
With Ben Tele heating furnace.
More preferably, in above mentioned step S3, furnace temp is 950 ~ 980 DEG C, and soaking time is 5 ~ 10min.
It is highly preferred that the molding temperature of blanking piece is not less than 700 DEG C, and mold clearing temperature is not higher than 200 in above mentioned step S3
℃。
It is further preferred that quenching cooling velocity is 25~50 DEG C/s in above mentioned step S3.
Specifically, in abovementioned steps S4, the blanking piece after cutting process also needs to carry out deburring processing.
The invention has the beneficial effects that: material base is heated to the temperature of recrystallization temperature or more by the present invention, makes it completely
Austenitizing, softening, then punching press, pressure maintaining and quenching treatment are carried out, so that obtaining tensile strength can reach 1350 ~ 1650MPa's
Part had not only been able to satisfy the High-strength anti-collision performance requirement of side wall stiffening plate but also can reduce pts wt；By to product using heat at
Shape reduces material thickness, reduces material consumption, part quality lightens, and reduces oil while proof strength requires
Consumption, due to the high stability of hot forming part, assembly parts size precision is more easily controlled.
Specific embodiment
Below in conjunction with detailed description of the invention by specific embodiments.
Embodiment 1
The processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming, comprising the following specific steps
S1, blanking: after material base is cleaned up, spray cleaning is carried out three times to material base using clear water, clear water temperature is 45 DEG C, often
A length of 20min when secondary cleaning；Blanking die is got out, blanking working process is carried out on punching machine, obtains blanking piece；
S2, heating: carrying out trimming processing to blanking piece, and treated blanking piece is sent into heating furnace and is heated, is added
Hot stove temperature is 880 DEG C, heating time 1h, and heating equipment selects Ben Tele heating furnace；
S3, hot forming: the blanking piece after heat treatment is sent into heating furnace, is added in the heating furnace with nitrogen protection atmosphere
Heat carries out austenitizing, and furnace temp is 950 DEG C, and blanking piece is quickly placed into cooling device by soaking time 5min
Mold in carry out stamping, the molding temperature of blanking piece is not less than 700 DEG C, and mold clearing temperature is not higher than 200 DEG C, forming process
In simultaneously occur quenching and lonneal processing, quenching cooling velocity be 25 DEG C/s；
S4, it hot forming treated blanking piece is sent into laser cutting machine carries out cutting process, by the shape cutting of stiffening plate
Out, strengthened panel products after progress deburring processing.
Embodiment 2
The processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming, comprising the following specific steps
S1, blanking: after material base is cleaned up, spray cleaning is carried out three times to material base using clear water, clear water temperature is 55 DEG C, often
A length of 30min when secondary cleaning；Blanking die is got out, blanking working process is carried out on punching machine, obtains blanking piece；
S2, heating: carrying out trimming processing to blanking piece, and treated blanking piece is sent into heating furnace and is heated, is added
Hot stove temperature is 930 DEG C, heating time 1.5h, and heating equipment selects Ben Tele heating furnace；
S3, hot forming: the blanking piece after heat treatment is sent into heating furnace, is added in the heating furnace with nitrogen protection atmosphere
Heat carries out austenitizing, and furnace temp is 980 DEG C, and blanking piece is quickly placed into cooling device by soaking time 10min
Mold in carry out stamping, the molding temperature of blanking piece is not less than 700 DEG C, and mold clearing temperature is not higher than 200 DEG C, forming process
In simultaneously occur quenching and lonneal processing, quenching cooling velocity be 50 DEG C/s；
S4, it hot forming treated blanking piece is sent into laser cutting machine carries out cutting process, by the shape cutting of stiffening plate
Out, strengthened panel products after progress deburring processing.
Embodiment 3
The processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming, comprising the following specific steps
S1, blanking: after material base is cleaned up, spray cleaning is carried out three times to material base using clear water, clear water temperature is 50 DEG C, often
A length of 25min when secondary cleaning；Blanking die is got out, blanking working process is carried out on punching machine, obtains blanking piece；
S2, heating: carrying out trimming processing to blanking piece, and treated blanking piece is sent into heating furnace and is heated, is added
Hot stove temperature is 900 DEG C, heating time 1.2h, and heating equipment selects Ben Tele heating furnace；
S3, hot forming: the blanking piece after heat treatment is sent into heating furnace, is added in the heating furnace with nitrogen protection atmosphere
Heat carries out austenitizing, and furnace temp is 960 DEG C, and blanking piece is quickly placed into cooling device by soaking time 8min
Mold in carry out stamping, the molding temperature of blanking piece is not less than 700 DEG C, and mold clearing temperature is not higher than 200 DEG C, forming process
In simultaneously occur quenching and lonneal processing, quenching cooling velocity be 35 DEG C/s；
S4, it hot forming treated blanking piece is sent into laser cutting machine carries out cutting process, by the shape cutting of stiffening plate
Out, strengthened panel products after progress deburring processing.
Material base is heated to the temperature of recrystallization temperature or more by the present invention, makes its complete austenitizing, softening, then rushed
Pressure, pressure maintaining and quenching treatment have both been able to satisfy side wall stiffening plate so that the part of 1350 ~ 1650MPa can be reached by obtaining tensile strength
High-strength anti-collision performance requirement can reduce pts wt again；By using hot forming to product, while proof strength requires,
Material thickness is reduced, material consumption is reduced, part quality lightens, oil consumption is reduced, due to the high stability of hot forming part,
Assembly parts size precision is more easily controlled.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation
Technical solution is fallen within the scope of protection of the present invention.
Claims (7)
1. the processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming, which is characterized in that comprising the following specific steps
S1, blanking: after material base is cleaned up, getting out blanking die, and blanking working process is carried out on punching machine, obtains blanking
Piece；
S2, heating: carrying out trimming processing to blanking piece, and treated blanking piece is sent into heating furnace and is heated；
S3, hot forming: the blanking piece after heat treatment is sent into heating furnace, is added in the heating furnace with nitrogen protection atmosphere
Heat carries out austenitizing, after held for some time, blanking piece is quickly placed into the mold with cooling device and is struck out
Quenching and lonneal processing occur simultaneously in forming process for shape；
S4, it hot forming treated blanking piece is sent into laser cutting machine carries out cutting process, by the shape cutting of stiffening plate
Out, strengthened panel products.
2. the processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming according to claim 1, which is characterized in that described
In step S1, spray cleaning is carried out three times to material base using clear water, clear water temperature is 45 ~ 55 DEG C, a length of 20 when cleaning every time ~
30min。
3. the processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming according to claim 1, which is characterized in that described
In step S2, furnace temp is 880 ~ 930 DEG C, and heating time is 1 ~ 1.5h, and heating equipment selects Ben Tele heating furnace.
4. the processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming according to claim 1, which is characterized in that described
In step S3, furnace temp is 950 ~ 980 DEG C, and soaking time is 5 ~ 10min.
5. the processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming according to claim 1, which is characterized in that described
In step S3, the molding temperature of blanking piece is not less than 700 DEG C, and mold clearing temperature is not higher than 200 DEG C.
6. the processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming according to claim 1, which is characterized in that described
In step S3, quenching cooling velocity is 25~50 DEG C/s.
7. the processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming according to claim 1, which is characterized in that described
In step S4, the blanking piece after cutting process also needs to carry out deburring processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821592.6A CN110508678A (en) | 2019-09-02 | 2019-09-02 | The processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821592.6A CN110508678A (en) | 2019-09-02 | 2019-09-02 | The processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110508678A true CN110508678A (en) | 2019-11-29 |
Family
ID=68630208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910821592.6A Pending CN110508678A (en) | 2019-09-02 | 2019-09-02 | The processing technology of the automobile-used side wall stiffening plate of high-strength thermal forming |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181790A (en) * | 2011-05-09 | 2011-09-14 | 武汉钢铁(集团)公司 | Steel with 1,300MPa-level tensile strength for automobile safety piece and production method thereof |
| CN104384283A (en) * | 2014-09-25 | 2015-03-04 | 中南林业科技大学 | Hot-stamping forming process of 22MnB5 high-strength thin steel plate |
| CN108526273A (en) * | 2018-05-08 | 2018-09-14 | 周焱春 | A kind of plank drop stamping technique |
| KR20190094859A (en) * | 2018-02-06 | 2019-08-14 | 한국생산기술연구원 | Direct water cooling mold for hot stamping |
-
2019
- 2019-09-02 CN CN201910821592.6A patent/CN110508678A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181790A (en) * | 2011-05-09 | 2011-09-14 | 武汉钢铁(集团)公司 | Steel with 1,300MPa-level tensile strength for automobile safety piece and production method thereof |
| CN104384283A (en) * | 2014-09-25 | 2015-03-04 | 中南林业科技大学 | Hot-stamping forming process of 22MnB5 high-strength thin steel plate |
| KR20190094859A (en) * | 2018-02-06 | 2019-08-14 | 한국생산기술연구원 | Direct water cooling mold for hot stamping |
| CN108526273A (en) * | 2018-05-08 | 2018-09-14 | 周焱春 | A kind of plank drop stamping technique |
Non-Patent Citations (1)
| Title |
|---|
| 邹新升: "《汽车钣金》", 31 January 2010, 天津科学技术出版社 * |
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Application publication date: 20191129 |
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