CN1440843A - Inner high-pressure formation process with low pressure source - Google Patents
Inner high-pressure formation process with low pressure source Download PDFInfo
- Publication number
- CN1440843A CN1440843A CN 02104881 CN02104881A CN1440843A CN 1440843 A CN1440843 A CN 1440843A CN 02104881 CN02104881 CN 02104881 CN 02104881 A CN02104881 A CN 02104881A CN 1440843 A CN1440843 A CN 1440843A
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- low pressure
- pressure source
- inner high
- metal blank
- formation process
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The present invention provides an inner high-pressure formation process with low pressure source. One pressurizing piston with small diameter is acted by one low pressure source to enter one totally enclosed metal blank cavity filled with liquid to produce inner high pressure inside liquid to deform the metal blank. By means of the restriction of outer mold to wrap the metal blank, required shape and sizes are reached. The low pressure source and the inner liquid pressure are controlled via controlling the diameter, feeding rate and feeding distance of the pressurizing piston. The present invention has the features of low production cost, simple equipment and no medium purifying step.
Description
(1) technical field
The present invention relates to inside high-pressure forming method, especially a kind of inner high-pressure formation process with low pressure source.
(2) background technology
Along with automobile, Aeronautics and Astronautics industrial expansion, parts are required more and more higher, become a kind of trend with parts such as the hollow parts substituting beam class of high strength, low weight, support classes, the internal high pressure forming technology is also just arisen at the historic moment.At present, inside high-pressure forming method mainly is that liquid is squeezed in the metal blank chamber of sealing with high-pressure pump, makes metal blank produce distortion under feeding and inner high voltage, reaches shape, the size of expection by the constraint of outer mold.Because high-voltage power supply will produce very high interior pressure, generally require more than 40～100 MPas, high to the components and parts requirement of high-voltage power supply, so high-voltage power supply equipment price costliness, control system is also very complicated, influences production efficiency.In addition, because that liquid enters behind the blank inner chamber is easily contaminated, must after purifying, just can recycle.All these has seriously restricted the development of internal high pressure forming technology.Purpose of the present invention just provides and a kind ofly produces inner high voltage with low pressure source, and production cost is low and saved a kind of inner high-pressure formation process with low pressure source of medium (oil or water) cleaning procedure.
(3) summary of the invention
To achieve these goals, the present invention is sealed in liquid (as the water wet goods) in the metal blank chamber that needs to be shaped, and utilizes low pressure source to pass through charged piston, produces the principle of inner high voltage, in metal blank, form the required inner high voltage that is shaped, make metal blank produce distortion.Just, under the low pressure source effect, enter in the totally enclosed metal blank chamber that is full of liquid, fluid pressure is increased and the generation high pressure, the metal blank distortion a charged piston that diameter is less.And, reach shape, the size of expection by the constraints such as mould that wrap in the metal blank outside.By diameter, feed speed and the feeding distance of control charged piston, realize control to low pressure source, inner high voltage fluid pressure and expansion of liquids volume.
(4) description of drawings
Fig. 1 is the front view of product blank;
Fig. 2 is a work structuring schematic diagram of the present invention;
(5) specific embodiment
Revolving body product with shaping hollow is an example below, and manufacturing process of the present invention is described in detail.
As shown in Figure 1, the product blank of embodiment is a hollow.Barrel-shaped revolving body, and the revolving body product of shape is arranged.
As shown in Figure 2, entire mechanism is made up of charged piston 1, feed appliance 2, die 3, water 4 etc.The product blank (see figure 1) of drum shape is put into the die 3 that can separate, add entry 4 in the product blank, there is a through hole at feed appliance 2 centers, interior dress charged piston 1, the lower end enters in the product blank, and upper end and 3 sliding joining of die, middle boss A is pressed in product blank mouth termination.Feed appliance 2 upper ends pressurization P
1, be in order to increase sealing, also can to compensate the metal that the product blank needs in deformation process in addition on the one hand.Low pressure source Po is pressed in the top of charged piston 1, and charged piston 1 enters in the water 4, the pressure of water in sealing state is increased and produces high pressure, makes the distortion of product blank and fits with die 3 inner chambers, thereby finished whole forming process.For the product blank being fitted with the die inner chamber better and reduce resilience after product is shaped, charged piston 1 enters the difference in volume that volume in the water equals product inner chamber and product blank inner chamber.
Claims (2)
1. inner high-pressure formation process with low pressure source, utilize low pressure source to produce inner high voltage by charged piston, it is characterized in that: liquid is sealed in the metal blank chamber that needs are shaped, and charged piston (1) enters under the effect of low pressure source (Po) power in the liquid in the metal blank chamber.
2. a kind of inner high-pressure formation process with low pressure source according to claim 1 is characterized in that: charged piston (1) enters the difference in volume that volume in the water equals product inner chamber and product blank inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104881 CN1440843A (en) | 2002-02-27 | 2002-02-27 | Inner high-pressure formation process with low pressure source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104881 CN1440843A (en) | 2002-02-27 | 2002-02-27 | Inner high-pressure formation process with low pressure source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1440843A true CN1440843A (en) | 2003-09-10 |
Family
ID=27768427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02104881 Pending CN1440843A (en) | 2002-02-27 | 2002-02-27 | Inner high-pressure formation process with low pressure source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1440843A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458351C (en) * | 2003-10-02 | 2009-02-04 | 贝洱两合公司 | Charge-air cooler for motor vehicles |
| CN101332480B (en) * | 2008-06-07 | 2010-06-02 | 桂林电子科技大学 | Simple inside high-pressure forming method |
| CN108326107A (en) * | 2017-12-31 | 2018-07-27 | 潍坊倍力汽车零部件有限公司 | Without liquid-filled shape tube hydraulic forming method and device |
-
2002
- 2002-02-27 CN CN 02104881 patent/CN1440843A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458351C (en) * | 2003-10-02 | 2009-02-04 | 贝洱两合公司 | Charge-air cooler for motor vehicles |
| CN101332480B (en) * | 2008-06-07 | 2010-06-02 | 桂林电子科技大学 | Simple inside high-pressure forming method |
| CN108326107A (en) * | 2017-12-31 | 2018-07-27 | 潍坊倍力汽车零部件有限公司 | Without liquid-filled shape tube hydraulic forming method and device |
| CN108326107B (en) * | 2017-12-31 | 2019-10-29 | 潍坊倍力汽车零部件有限公司 | Without liquid-filled shape tube hydraulic forming method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |