CN101422797A - Metal sheet forming method - Google Patents
Metal sheet forming method Download PDFInfo
- Publication number
- CN101422797A CN101422797A CNA2007101578589A CN200710157858A CN101422797A CN 101422797 A CN101422797 A CN 101422797A CN A2007101578589 A CNA2007101578589 A CN A2007101578589A CN 200710157858 A CN200710157858 A CN 200710157858A CN 101422797 A CN101422797 A CN 101422797A
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 70
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 16
- 238000007493 shaping process Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 32
- 230000015572 biosynthetic process Effects 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 3
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000006227 byproduct Substances 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to a forming method of metal plates by hydro-mechanical drawing, which belongs to the field of plate shaping technology. Firstly, a layer of assistant shaping plate is respectively pasted on the two sides of a shaping plate, then the totally three layers of plates are overlapped on a female die surface, a blank holder presses down the periphery of the three layers of plates; the female die is provided with a hydraulic chamber which is filled with fluid by a hydraulic pump to increase the pressure, a male die passes through a hole in the middle of the blank holder and moves downwards to press the three layers of plates down into the female die simultaneously, the plates are contacted with one another due to the action of the pressure and deform simultaneously, so as to form metal plates. When forming the products made from magnesium alloy and the like, by-products of other materials with the same shape can be obtained simultaneously. The method improves the shaping conditions of the plates, i.e., changes the direction of friction forced received by the forming plate by a method of adding the assistant shaping plate at the upper surface and the lower surface of the forming plate, thus facilitating the flowing of shaping plate metal to the deforming area, effectively reducing the thinning of the forming plate in the deforming area and avoiding the scrape of corner parts of the die on the shaping plate surface.
Description
Technical field
The present invention relates to a kind of sheet metal liquid filling deep-drawing forming method, belong to the sheet material forming technical field.
Background technology
Magnesium alloy is one of structural metallic materials the lightest in the practical engineering application, and magnesium alloy has that density is low, specific strength and specific stiffness height, the antidetonation shock attenuation ability is strong, wearability good, thermal conductivity is excellent, effectiveness is excellent and good cutting ability and recyclability, becomes the important novel raw material of industries such as electronics, electrical equipment, automobile, traffic, Aeronautics and Astronautics.Particularly at 3C (computer, communication, consumerelectronics) industry, magnesium alloy plate are being faced with by small lot in recent years to the large-scale production and application developing stage, and sheet material will more and more come into one's own as the raw materials for production of producing electronic product casing.
Because magnesium is close-packed hexagonal structure, at room temperature plasticity is relatively poor to make it, and plastic deformation ability is not good, and this is to cause present magnesium alloy plastic working difficulty, the main cause that manufacturing process is less.Compare with other conventional metals, the research of the magnesium alloy Plastic Forming aspect maturation that also is nowhere near, up to the present, magnesium-alloy material is produced for die-casting technique more than 90% at present.Technology of Plastic Processing then has very big advantage, wrought magnesium alloy has higher intensity and plasticity than cast magnesium alloy, can satisfy the instructions for use of different occasion structural members, especially in 3C electronic equipment field, adopt magnesium alloy plate punching press notebook computer, phone housing etc. to compare, have advantages such as wall is thin, surface quality is high, productivity ratio is high, production cost is low with corresponding die casting product.
Sheet metal mainly obtains to use the drawing of the various hull shape part overwhelming majority with the stamping parts form.Hydro-mechanical drawing (Hydrodynamic Deep Drawing) is a kind of advanced machining technology that hydraulic technique combines with the sheet stamping forming technology and develops and come, and has become the important means of sheet material forming; As shown in Figure 1, fill liquid in the liquid chamber 4 in the die 2 of Drawing Die with certain pressure, punch 3 is when depressing, liquid in the die produces pressure P is close on the punch 3 sheet material b, increase the useful frictional force between sheet material and the rigidity punch, and between sheet material and die, set up fluid lubrication, thereby can obtain higher pull and stretch ratio, dimensional accuracy and surface quality, enhance productivity the generation of plate defect when reducing traditional pull and stretch.
But, in sheet stamping forming or liquid filling deep-drawing forming process, when particularly the relatively poor sheet metal (as magnesium alloy and aluminium alloy etc.) of plasticity is shaped, tend to occur sheet material local excessive attenuate or fracture phenomena.Break and mostly occur in the punch bight (I in as Fig. 1) and be shaped district (∏ in as Fig. 1).Excessive thinning or to break mainly be that (as among Fig. 1 1) and die (as among Fig. 1 2) are opposite with the metal flow direction to the frictional force f of sheet material because blank holder causes that the past deformed area of metal is mobile freely not to be caused.
In addition, according to pertinent literature, magnesium alloy is under higher temperature, and 170 ℃～400 ℃ the time, plasticity has significant improvement as temperature.
Summary of the invention
The object of the present invention is to provide a kind of metal sheet forming method, the problem that solves: overcome the deficiencies in the prior art, improve the molding condition of shaped sheet, promptly by add the method for assist formation sheet material at the shaped sheet upper and lower surface, change the direction of the suffered frictional force of shaped sheet, the shaped sheet metal is flowed toward the deformed area easily, effectively alleviate the attenuate of shaped sheet, and can avoid the scuffing of die corner the shaped sheet surface in the deformed area.
Technical solution of the present invention:
A kind of sheet material forming method, at first the obedient last layer assist formation sheet material of shaped sheet two sides difference, the three ply board material overlays on the die surface, does not process between the sheet material, and blank holder is pushed down around the three ply board material; Liquid chamber is arranged in the die, and elder generation to wherein being full of liquid, uses heating rod that the liquid in mould (comprising punch, die and blank holder) and sheet material and the die liquid chamber is heated to 170～300 ℃ together with hydraulic pump then before being shaped; When being shaped beginning, continue under the condition of heating with the maintenance temperature at heating rod, hydraulic pump continues to inject liquid with supercharging toward liquid chamber, the cavity that punch passes in the middle of the blank holder moves downward, press to the three ply board material in the die simultaneously, because the effect of pressure is in contact with one another, deform simultaneously between the sheet material.
Wherein, assist formation sheet material is the material that is relatively good than shaped sheet plasticity (as stainless steel etc.), and the thickness between them can be different.In material products such as shaping magnesium alloy, can obtain the byproduct of other identical shaped materials.
Among the present invention, the material of assist formation sheet material is carbon steel, stainless steel or aluminium alloy, and thickness range is 0.5mm～2mm.
Among the present invention, the shaped sheet material that is clipped between the assist formation sheet material is magnesium alloy or aluminium alloy, and thickness range is 0.5mm～2mm.
The present invention's advantage compared with prior art is:
Utilize two-layer assist formation sheet material up and down, change the direction of the suffered frictional force of shaped sheet, promote metal flow; Utilize heating rod mould (comprising punch, die and blank holder), sheet material and transmission medium heating, improve sheet material plasticity.When not having assist formation sheet material, die is opposite with shaped sheet metal flow direction to the frictional force direction (as shown in Figure 1) of shaped sheet with blank holder, and frictional force hinders flowing of sheet metal in the sheet material forming process, is unfavorable for being shaped; After the shaped sheet two sides adds assist formation sheet material, because assist formation sheet material and shaped sheet are being shaped simultaneously, the flow direction of assist formation sheet metal is consistent with shaped sheet, assist formation sheet material is consistent with the metal flow direction to the frictional force direction (as shown in Figure 2) of shaped sheet, frictional force promotes flowing of sheet metal in the sheet material forming process, help being shaped, the attenuate of shaped sheet can be effectively alleviated, and the scuffing of die corner can be avoided the shaped sheet surface in the deformed area.And the once-forming process can obtain the formed product of two or three unlike material and wall thickness.
Description of drawings
Fig. 1 is common sheet material liquid filling deep-drawing forming schematic diagram.
Fig. 2 is the sheet material forming method schematic diagram that the present invention proposes.
Among the figure, 1 blank holder; 2 dies; 3 punch; 4 liquid chambers; 5 heating rods.
The specific embodiment
As shown in Figure 2, the mould that is used for being shaped comprises blank holder 1, die 2 and punch 3, and liquid chamber 4 is arranged in the die 2, wherein is filled with liquid such as various mineral oil, vegetable oil, edible oil, water and the emulsion etc. of good flowability characteristics.
When processing parts, at first shaped sheet b and assist formation sheet material a and c being put together by the order stack of a, b, c, (it goes without doing between the sheet material handles, and wall thickness can be different between each laminate material, and assist formation sheet material material can be different up and down; In the present embodiment, sheet material a material is a stainless steel, and thickness is 0.6mm; Sheet material b material is a magnesium alloy, and thickness is 0.7mm; Sheet material c material is a stainless steel, and thickness is 0.6mm), be placed on the die 2, compress around the three ply board material with blank holder, prevent the wrinkling and sealing liquid chamber 4 of sheet material in the forming process; Before the shaping, elder generation to wherein being full of liquid, uses the heating rod 5 in blank holder and the die that the liquid in mould (comprising punch 3, die 2 and blank holder 1) and sheet material and the die liquid chamber is heated to 220 ℃ together with hydraulic pump then; When being shaped beginning, continue under the condition of heating with the maintenance temperature at heating rod 5, hydraulic pump continues to inject liquid with supercharging toward liquid chamber, and to set up the required pressure P of shaping, the size of pressure P is decided according to concrete arts demand; Applying directed force F makes punch move downward a three ply board material to press to simultaneously in the die 2.Because assist formation sheet material and shaped sheet are being shaped simultaneously, the flow direction of assist formation sheet metal is consistent with shaped sheet, assist formation sheet material is consistent with the metal flow direction to the frictional force f direction of shaped sheet, the pressure of liquid makes sheet material be close to the surface of punch 3 in the liquid chamber 4, can improve the sheet material forming performance.
Present embodiment once-forming process can obtain the formed product of 2 kinds of unlike materials and wall thickness, and the performance indications of each product all can satisfy practical requirement.
Claims (6)
1, a kind of metal sheet forming method is characterized in that: at first the obedient last layer assist formation sheet material of shaped sheet two sides difference, the three ply board material overlays on the die surface, and blank holder is pushed down around the three ply board material; Liquid chamber is arranged in the die, and the topping up body is with supercharging in liquid chamber with hydraulic pump, and the cavity that punch passes in the middle of the blank holder moves downward, press to the three ply board material in the die simultaneously, because the effect of pressure is in contact with one another, deform simultaneously between the sheet material, make metal sheet forming.
2, according to the described metal sheet forming method of claim 1, it is characterized in that: assist formation sheet material is the material that is relatively good than shaped sheet plasticity.
3, according to the described metal sheet forming method of claim 1, it is characterized in that: the material of assist formation sheet material is carbon steel, stainless steel or aluminium alloy, and thickness range is 0.5mm～2mm.
4, according to the described metal sheet forming method of claim 1, it is characterized in that: the shaped sheet material that is clipped between the assist formation sheet material is magnesium alloy or aluminium alloy, and thickness range is 0.5mm～2mm.
5, according to the described metal sheet forming method of claim 1, it is characterized in that: before the shaping, earlier with hydraulic pump to wherein being full of liquid, then the liquid in the punch of mould, die and blank holder and sheet material, the die liquid chamber is heated to 170～300 ℃ together; When being shaped beginning, continuing under the condition of heating with the maintenance temperature, hydraulic pump continues to inject liquid with supercharging toward liquid chamber.
6, according to the described metal sheet forming method of claim 5, it is characterized in that: the liquid in mould, sheet material and the liquid chamber is heated by heating rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101578589A CN101422797A (en) | 2007-10-31 | 2007-10-31 | Metal sheet forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101578589A CN101422797A (en) | 2007-10-31 | 2007-10-31 | Metal sheet forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101422797A true CN101422797A (en) | 2009-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101578589A Pending CN101422797A (en) | 2007-10-31 | 2007-10-31 | Metal sheet forming method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101422797A (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862783A (en) * | 2010-05-18 | 2010-10-20 | 湖南省东升机械制造有限公司 | Method for stretching sheet with low plasticity and low hardening index |
| CN102458707A (en) * | 2009-05-15 | 2012-05-16 | 塞莱克斯康普有限公司 | Method and mould arrangement for manufacturing articles with the help of a mould |
| CN102764808A (en) * | 2012-07-24 | 2012-11-07 | 哈尔滨工业大学 | Hydraulic forming device and method of reducing cylindrical part |
| CN102914050A (en) * | 2012-11-19 | 2013-02-06 | 上海理工大学 | Ultra-thin electric water heater liner and production method thereof |
| CN103464561A (en) * | 2013-06-13 | 2013-12-25 | 上海飞机制造有限公司 | Forming die of skin part for airplane |
| CN103567295A (en) * | 2013-10-11 | 2014-02-12 | 中航飞机股份有限公司西安飞机分公司 | Deep drawing method and device for sheet metal part |
| CN104722634A (en) * | 2015-03-24 | 2015-06-24 | 张家港市通润机械有限公司 | Manufacturing process of stainless steel container without weld joint |
| CN105665576A (en) * | 2016-01-25 | 2016-06-15 | 重庆哈工易成形钢铁科技有限公司 | Steel forming method and forming component |
| CN105710218A (en) * | 2016-04-01 | 2016-06-29 | 中航飞机股份有限公司西安飞机分公司 | Flexible stamping mould and stamping method for plate half tube |
| CN106363067A (en) * | 2015-07-20 | 2017-02-01 | 上海航天设备制造总厂 | Overall shaping device for box bottom of spacecraft fuel storage box and shaping method for same |
| CN107971382A (en) * | 2017-11-23 | 2018-05-01 | 北京航空航天大学 | It is a kind of to can be used for panel stiffness mould bulging and the device and method of hydraulic bulge test |
| CN108055835A (en) * | 2015-09-30 | 2018-05-18 | 东洋钢钣株式会社 | Metallic laminate and its manufacturing method |
| CN110479832A (en) * | 2019-07-24 | 2019-11-22 | 太原理工大学 | A kind of forming of cladded type magnesium alloy Multi-layer structure member and composite preparation process and device |
| CN110871578A (en) * | 2019-11-22 | 2020-03-10 | 北京航空航天大学 | Integrated process for preparing and forming fiber metal laminate based on liquid filling forming |
| CN111408659A (en) * | 2020-04-01 | 2020-07-14 | 大连理工大学 | Method for forming laminated plate of middle discontinuous thin-wall metal member |
| CN111745026A (en) * | 2020-06-12 | 2020-10-09 | 陕西飞机工业（集团）有限公司 | Rubber forming method for deep drawing characteristic sheet metal part |
| CN112517727A (en) * | 2020-11-09 | 2021-03-19 | 哈尔滨工业大学 | Ultra-low temperature forming device and forming method for aluminum alloy deep cavity component |
| CN114918306A (en) * | 2022-05-27 | 2022-08-19 | 上海交通大学 | Injection-press forming method and apparatus for metal resin laminated structure |
| CN114985903A (en) * | 2022-07-18 | 2022-09-02 | 吉林大学 | Method for repairing micro-holes on surface of laser-nitrided amorphous alloy by mechanical scribing |
| CN117681478A (en) * | 2024-02-04 | 2024-03-12 | 西南石油大学 | Hydraulic forming integrated device for bipolar plate of hydrogen fuel cell |
-
2007
- 2007-10-31 CN CNA2007101578589A patent/CN101422797A/en active Pending
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102458707B (en) * | 2009-05-15 | 2014-09-24 | 塞莱克斯康普有限公司 | Method and mould arrangement for manufacturing articles with the help of a mould |
| CN102458707A (en) * | 2009-05-15 | 2012-05-16 | 塞莱克斯康普有限公司 | Method and mould arrangement for manufacturing articles with the help of a mould |
| CN101862783A (en) * | 2010-05-18 | 2010-10-20 | 湖南省东升机械制造有限公司 | Method for stretching sheet with low plasticity and low hardening index |
| CN102764808A (en) * | 2012-07-24 | 2012-11-07 | 哈尔滨工业大学 | Hydraulic forming device and method of reducing cylindrical part |
| CN102914050A (en) * | 2012-11-19 | 2013-02-06 | 上海理工大学 | Ultra-thin electric water heater liner and production method thereof |
| CN103464561B (en) * | 2013-06-13 | 2015-11-25 | 上海飞机制造有限公司 | A kind of shaping dies of skin part for airplane |
| CN103464561A (en) * | 2013-06-13 | 2013-12-25 | 上海飞机制造有限公司 | Forming die of skin part for airplane |
| CN103567295A (en) * | 2013-10-11 | 2014-02-12 | 中航飞机股份有限公司西安飞机分公司 | Deep drawing method and device for sheet metal part |
| CN104722634A (en) * | 2015-03-24 | 2015-06-24 | 张家港市通润机械有限公司 | Manufacturing process of stainless steel container without weld joint |
| CN106363067B (en) * | 2015-07-20 | 2019-07-16 | 上海航天设备制造总厂 | A kind of spacecraft fuel tank bottom monolithic molding device and its manufacturing process |
| CN106363067A (en) * | 2015-07-20 | 2017-02-01 | 上海航天设备制造总厂 | Overall shaping device for box bottom of spacecraft fuel storage box and shaping method for same |
| CN108055835A (en) * | 2015-09-30 | 2018-05-18 | 东洋钢钣株式会社 | Metallic laminate and its manufacturing method |
| CN105665576A (en) * | 2016-01-25 | 2016-06-15 | 重庆哈工易成形钢铁科技有限公司 | Steel forming method and forming component |
| CN105665576B (en) * | 2016-01-25 | 2018-02-02 | 重庆哈工易成形钢铁科技有限公司 | A kind of steel manufacturing process and its formed parts |
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| CN105710218B (en) * | 2016-04-01 | 2017-09-29 | 中航飞机股份有限公司西安飞机分公司 | A kind of flexible diel of plate semicanal and process for stamping |
| CN107971382A (en) * | 2017-11-23 | 2018-05-01 | 北京航空航天大学 | It is a kind of to can be used for panel stiffness mould bulging and the device and method of hydraulic bulge test |
| CN110479832A (en) * | 2019-07-24 | 2019-11-22 | 太原理工大学 | A kind of forming of cladded type magnesium alloy Multi-layer structure member and composite preparation process and device |
| CN110871578A (en) * | 2019-11-22 | 2020-03-10 | 北京航空航天大学 | Integrated process for preparing and forming fiber metal laminate based on liquid filling forming |
| CN111408659A (en) * | 2020-04-01 | 2020-07-14 | 大连理工大学 | Method for forming laminated plate of middle discontinuous thin-wall metal member |
| CN111408659B (en) * | 2020-04-01 | 2021-07-06 | 大连理工大学 | Method for forming laminated plate of middle discontinuous thin-wall metal member |
| CN111745026A (en) * | 2020-06-12 | 2020-10-09 | 陕西飞机工业（集团）有限公司 | Rubber forming method for deep drawing characteristic sheet metal part |
| CN112517727A (en) * | 2020-11-09 | 2021-03-19 | 哈尔滨工业大学 | Ultra-low temperature forming device and forming method for aluminum alloy deep cavity component |
| CN114918306A (en) * | 2022-05-27 | 2022-08-19 | 上海交通大学 | Injection-press forming method and apparatus for metal resin laminated structure |
| CN114985903A (en) * | 2022-07-18 | 2022-09-02 | 吉林大学 | Method for repairing micro-holes on surface of laser-nitrided amorphous alloy by mechanical scribing |
| CN114985903B (en) * | 2022-07-18 | 2023-06-13 | 吉林大学 | Method for repairing micro holes on surface of laser nitriding amorphous alloy by mechanical scribing |
| CN117681478A (en) * | 2024-02-04 | 2024-03-12 | 西南石油大学 | Hydraulic forming integrated device for bipolar plate of hydrogen fuel cell |
| CN117681478B (en) * | 2024-02-04 | 2024-04-26 | 西南石油大学 | Hydraulic forming integrated device for bipolar plate of hydrogen fuel cell |
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Open date: 20090506 |