CN106378374A - Punching technology for steel panel - Google Patents
Punching technology for steel panel Download PDFInfo
- Publication number
- CN106378374A CN106378374A CN201611150349.9A CN201611150349A CN106378374A CN 106378374 A CN106378374 A CN 106378374A CN 201611150349 A CN201611150349 A CN 201611150349A CN 106378374 A CN106378374 A CN 106378374A
- Authority
- CN
- China
- Prior art keywords
- punch
- die
- temperature
- edge mould
- punching press
- 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
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Classifications
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- 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
Abstract
The invention discloses a punching technology for a steel panel. The punching technology comprises the following steps that before punching, the steel panel is placed between a female die and an edge pressing die, a male die, the female die and the edge pressing die are heated, the temperature of the male die, the temperature of the female die and the temperature of the edge pressing die are controlled in the range from 250 DEG C to 300 DEG C, and heat preservation is conducted; the male die is moved to punch the panel, and the temperature of the male die, the temperature of the edge pressing die and the temperature of the female die are kept to range from 300 DEG C to 400 DEG C; and second-time punching is conducted, the male die is continuously moved to further punch the panel, then, the punching state is kept, meanwhile, the male die, the edge pressing die and the female die are cooled with the reduction speed of 0.5-3DEG C/s, then the male die is moved, and the formed steel panel is taken down. The punching technology has the beneficial effects that after pressing forming, the male die and the female die are kept in the pressing state and are cooled in a uniform cooling manner, the situation that in the workpiece forming process, deformation is likely to happen due to the uneven rate during cooling can be avoided, and therefore the size stability of a punched part is improved.
Description
Technical field
The invention belongs to stamping technology field, particularly to a kind of Sheet Metal Forming Technology of steel panel.
Background technology
In machining Sheet Metal Forming Technology field, the punch forming for alloy in lightweight such as steel plates is generally struck out using isothermal
Type and differential temperature punch forming, wherein adopt isothermal punch forming, can significantly improve the plastic deformation ability of the alloy in lightweight such as steel plate
Power, improves punch forming performance, but easily occurs compressing because speed when cooling is uneven in forming process
Workpiece deform upon, thus the stability of the size of serious shadow stamping parts.
Content of the invention
Instant invention overcomes the deficiencies in the prior art, a kind of Sheet Metal Forming Technology of steel panel is provided, solves Workpiece shaping
During easily because speed is uneven and occur compressing workpiece to deform upon, thus having a strong impact on punching press when cooling
The stability of the size of part.
For solving above-mentioned technical problem, the present invention employs the following technical solutions：
A kind of Sheet Metal Forming Technology of steel panel, step is as follows：
1) before punching press, steel plate sheet material is inserted between die and edge mould, punch is contacted with plate surface, heat die
With edge mould makes its temperature all control between 250-300 DEG C, heating punch makes its temperature control between 250-300 DEG C, right
Die, edge mould and punch carry out preservation and controlling, and on steel plate sheet material, the temperature of each several part is consistent；
2) first time punching press, mobile punch carries out punching press to sheet material, and punch displacement is more than or equal to punch-nose angle
Radius, solid punch stops punching press, continues punch, edge mould and die are heated up, keep punch, edge mould and die
Temperature be 300-400 DEG C, preservation and controlling is carried out to die, edge mould and punch, thermograde is eliminated on sheet material；
3) carry out second punching press, the mobile punch that continues carries out further punching press to sheet material, until shaping；
4) then keep punching press state, reduce simultaneously and with 0.5-3 DEG C/sec of speed, punch, edge mould and die carried out
Cooling, until punch, edge mould and die are 25-30 DEG C；Then move punch, take off the steel plate sheet material of shaping
Preferably, the temperature control of die, edge mould and punch described in described step (1) is at 270 DEG C.
Preferably, the temperature control of die, edge mould and punch described in described step (2) is at 350 DEG C.
Preferably, the cooling rate of die, edge mould and punch described in described step (4) is 1-2 DEG C/sec.
Compared with prior art, the invention has the beneficial effects as follows：After the present invention is compressing, keep punch and die in pressure
Under state processed, by the way of uniform decrease in temperature, punch, die are being lowered the temperature, holding during so can avoiding Workpiece shaping
Easily deform upon, thus improve the stability of the size of stamping parts because speed when cooling is uneven.
Specific embodiment
With reference to embodiment, the present invention is further illustrated.Embodiments of the present invention are including but not limited to following
Embodiment.
[embodiment 1]
A kind of Sheet Metal Forming Technology of steel panel, step is as follows：
1) before punching press, steel plate sheet material is inserted between die and edge mould, punch is contacted with plate surface, heat die
With edge mould makes its temperature all control between 250 DEG C, heating punch makes its temperature control between 250 DEG C, to die, flanging
Mould and punch carry out preservation and controlling, and on steel plate sheet material, the temperature of each several part is consistent；
2) first time punching press, mobile punch carries out punching press to sheet material, and punch displacement is more than or equal to punch-nose angle
Radius, solid punch stops punching press, continues punch, edge mould and die are heated up, keep punch, edge mould and die
Temperature be 300 DEG C, preservation and controlling is carried out to die, edge mould and punch, thermograde is eliminated on sheet material；
3) carry out second punching press, the mobile punch that continues carries out further punching press to sheet material, until shaping；
4) then keep punching press state, reduce simultaneously and with 0.5 DEG C/sec of speed, punch, edge mould and die dropped
Temperature, until punch, edge mould and die are 25 DEG C；Then move punch, take off the steel plate sheet material of shaping.
[embodiment 2]
A kind of Sheet Metal Forming Technology of steel panel is it is characterised in that step is as follows：
1) before punching press, steel plate sheet material is inserted between die and edge mould, punch is contacted with plate surface, heat die
With edge mould makes its temperature all control between 300 DEG C, heating punch makes its temperature control between 300 DEG C, to die, flanging
Mould and punch carry out preservation and controlling, and on steel plate sheet material, the temperature of each several part is consistent；
2) first time punching press, mobile punch carries out punching press to sheet material, and punch displacement is more than or equal to punch-nose angle
Radius, solid punch stops punching press, continues punch, edge mould and die are heated up, keep punch, edge mould and die
Temperature be 400 DEG C, preservation and controlling is carried out to die, edge mould and punch, thermograde is eliminated on sheet material；
3) carry out second punching press, the mobile punch that continues carries out further punching press to sheet material, until shaping；
4) then keep punching press state, reduce simultaneously and with 3 DEG C/sec of speed, punch, edge mould and die lowered the temperature,
Until punch, edge mould and die are 30 DEG C；Then move punch, take off the steel plate sheet material of shaping.
[embodiment 3]
A kind of Sheet Metal Forming Technology of steel panel is it is characterised in that step is as follows：
1) before punching press, steel plate sheet material is inserted between die and edge mould, punch is contacted with plate surface, heat die
With edge mould makes its temperature all control between 270 DEG C, heating punch makes its temperature control between 270 DEG C, to die, flanging
Mould and punch carry out preservation and controlling, and on steel plate sheet material, the temperature of each several part is consistent；
2) first time punching press, mobile punch carries out punching press to sheet material, and punch displacement is more than or equal to punch-nose angle
Radius, solid punch stops punching press, continues punch, edge mould and die are heated up, keep punch, edge mould and die
Temperature be 350 DEG C, preservation and controlling is carried out to die, edge mould and punch, thermograde is eliminated on sheet material；
3) carry out second punching press, the mobile punch that continues carries out further punching press to sheet material, until shaping；
4) then keep punching press state, reduce simultaneously and with 1 DEG C/sec of speed, punch, edge mould and die lowered the temperature,
Until punch, edge mould and die are 25 DEG C；Then move punch, take off the steel plate sheet material of shaping.
It is embodiments of the invention as mentioned above.The present invention is not limited to above-mentioned embodiment, and anyone should learn
The structure change made under the enlightenment of the present invention, every have same or like technical scheme with the present invention, each falls within this
Within the protection domain of invention.
Claims (4)
1. a kind of Sheet Metal Forming Technology of steel panel is it is characterised in that step is as follows：
1) before punching press, steel plate sheet material is inserted between die and edge mould, punch is contacted with plate surface, heat die and pressure
Side mould makes its temperature all control between 250-300 DEG C, and heating punch makes its temperature control between 250-300 DEG C, to die,
Edge mould and punch carry out preservation and controlling, and on steel plate sheet material, the temperature of each several part is consistent；
2) first time punching press, mobile punch carries out punching press to sheet material, and punch displacement is more than or equal to the half of punch-nose angle
Footpath, solid punch stops punching press, continues punch, edge mould and die are heated up, keeps the temperature of punch, edge mould and die
Spend for 300-400 DEG C, preservation and controlling is carried out to die, edge mould and punch, thermograde is eliminated on sheet material；
3) carry out second punching press, the mobile punch that continues carries out further punching press to sheet material, until shaping；
4) then keep punching press state, reduce simultaneously and with 0.5-3 DEG C/sec of speed, punch, edge mould and die lowered the temperature,
Until punch, edge mould and die are 25-30 DEG C；Then move punch, take off the steel plate sheet material of shaping.
2. a kind of Sheet Metal Forming Technology of steel panel according to claim 1 is it is characterised in that institute in described step (1)
The temperature control stating die, edge mould and punch is at 270 DEG C.
3. a kind of Sheet Metal Forming Technology of steel panel according to claim 1 is it is characterised in that institute in described step (2)
The temperature control stating die, edge mould and punch is at 350 DEG C.
4. a kind of Sheet Metal Forming Technology of steel panel according to claim 1 is it is characterised in that institute in described step (4)
The cooling rate stating die, edge mould and punch is 1-2 DEG C/sec.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150349.9A CN106378374A (en) | 2016-12-14 | 2016-12-14 | Punching technology for steel panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150349.9A CN106378374A (en) | 2016-12-14 | 2016-12-14 | Punching technology for steel panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106378374A true CN106378374A (en) | 2017-02-08 |
Family
ID=57957440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611150349.9A Pending CN106378374A (en) | 2016-12-14 | 2016-12-14 | Punching technology for steel panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106378374A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252841A (en) * | 2017-06-30 | 2017-10-17 | 太仓市华天冲压五金制品厂 | A kind of heating process for stamping of machining high-precision convex portion |
| CN109182894A (en) * | 2018-08-21 | 2019-01-11 | 宁波市拓欧金属制品有限公司 | A kind of precision is wear-resistant top glue stamping parts and its production technology |
| WO2019104601A1 (en) * | 2017-11-30 | 2019-06-06 | 惠州市惠轩达汽车贸易有限公司 | Carbon steel car frame press-forming process |
| CN111672955A (en) * | 2020-06-09 | 2020-09-18 | 首钢集团有限公司 | Hot stamping process for improving strength of hot stamping axle housing steel finished product |
| CN111687278A (en) * | 2019-03-11 | 2020-09-22 | 广东菲力绿色板业有限公司 | Plate stamping process |
-
2016
- 2016-12-14 CN CN201611150349.9A patent/CN106378374A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252841A (en) * | 2017-06-30 | 2017-10-17 | 太仓市华天冲压五金制品厂 | A kind of heating process for stamping of machining high-precision convex portion |
| CN107252841B (en) * | 2017-06-30 | 2019-04-26 | 太仓市华天冲压五金制品厂 | A kind of heating process for stamping of machining high-precision protrusion |
| WO2019104601A1 (en) * | 2017-11-30 | 2019-06-06 | 惠州市惠轩达汽车贸易有限公司 | Carbon steel car frame press-forming process |
| CN109182894A (en) * | 2018-08-21 | 2019-01-11 | 宁波市拓欧金属制品有限公司 | A kind of precision is wear-resistant top glue stamping parts and its production technology |
| CN111687278A (en) * | 2019-03-11 | 2020-09-22 | 广东菲力绿色板业有限公司 | Plate stamping process |
| CN111672955A (en) * | 2020-06-09 | 2020-09-18 | 首钢集团有限公司 | Hot stamping process for improving strength of hot stamping axle housing steel finished product |
| CN111672955B (en) * | 2020-06-09 | 2022-05-17 | 首钢集团有限公司 | Hot stamping process for improving strength of hot stamping axle housing steel finished product |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170208 |
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| WD01 | Invention patent application deemed withdrawn after publication |