CN1693066A - Process for forming multilayer slab - Google Patents
Process for forming multilayer slab Download PDFInfo
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- CN1693066A CN1693066A CN 200510011974 CN200510011974A CN1693066A CN 1693066 A CN1693066 A CN 1693066A CN 200510011974 CN200510011974 CN 200510011974 CN 200510011974 A CN200510011974 A CN 200510011974A CN 1693066 A CN1693066 A CN 1693066A
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- layer
- liquid
- die
- sheet material
- forming multilayer
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Abstract
A shaping method for multi-layer plate includes such steps as putting two or more layer of plate on a femal die, pressing them by a pressing ring and pumping liquid into said femal die while moving male die downward. Its advantages are high adhesive, rigidity and strength, and light weight.
Description
Technical field
The present invention relates to a kind of multi-layer sheet manufacturing process, belong to the sheet material forming technical field.
Background technology
In fields such as aircraft, spacecraft and automobiles, weight reduction is people's long-term aim with economical with materials and operating energy, also is one of trend of modern advanced manufacturing technique development.Adopt composite construction such as multi-layer sheet constitutional detail can realize multiple function, both had intensity as part, also have certain function such as antiseptic property etc., internal layer such as part can adopt steel plate or the higher part of stainless steel equal strength, and skin can adopt good sheet material of Corrosion Protections such as aluminium alloy etc.
Also there are many composite boards before shaping, must carry out the blank preparation now,, and then utilize the rigid convex die to form so that make multi-layer sheet tight with regard to combination before shaping; But this kind manufacturing process forming quality is difficult to guarantee, often separates in forming process between layer and the layer, causes waste product.
Summary of the invention
Technology of the present invention is dealt with problems: overcome the deficiencies in the prior art, a kind of process for forming multilayer slab is provided, its characteristics of utilizing liquid or other flexible medias evenly to transmit pressure multi-layered board that is shaped, layer with layer between material behavior and geometric properties such as wall thickness can be different, that formation of parts has is in light weight, rigidity and intensity are good, have advantage such as composite performance.
Technical solution of the present invention: a kind of process for forming multilayer slab, its characteristics are: at first two-layer or two-layer above sheet material is overlayed (normally die) on the die surface, need not anticipate between layer and the layer, liquid chamber is arranged in the die, be filled with liquid or other flexible medias in the liquid chamber, blank holder is pushed down the both sides of two-layer or two-layer above sheet material, have pump in die liquid chamber topping up body or other flexible medias with supercharging, another mould (normally punch) moves downward by in the middle of the blank holder two-layer or two-layer above sheet material being pressed in the die, effect owing to hydraulic pressure or other flexible media pressure between each laminate material is in contact with one another tightly, thereby the layer after being shaped is also combined closely with layer.
The present invention's advantage compared with prior art is: the present invention utilizes hydraulic pressure or other flexible medias, and two-layer or multi-layer sheet is configured as a part with this, this part has sandwich construction, geometries such as material between plate and the plate and thickness can be different, that the part that is shaped has is in light weight, rigidity and intensity are good, have advantage such as composite performance, the various multi-layer sheet composite structural members in the fields such as aircraft, spacecraft and automobile that can be widely used for being shaped.
Description of drawings
Fig. 1 is the structural representation of a kind of sheet material forming method of the method according to this invention proposition.
The specific embodiment
As shown in Figure 1, the mould that is used for being shaped has punch 1, die 3 and blank holder 2, liquid chamber 4 is arranged in the die 3, be filled with liquid or other flexible medias in the liquid chamber 4, the liquid here is meant that mainly various mineral oil, vegetable oil, edible oil, water and emulsion etc. have the liquid of good flow behavior, and other flexible medias mainly refer to rubber, motlten metal, resisting medium, as non-newtonian fluids such as silicon rubber, though flowability is good not as liquid, also can transmit pressure.Pump 6 is used for to liquid chamber 4 superchargings, the highest pressure in the overflow valve 8 control liquid chambers 4, and according to arts demand and mould structure, maximum pressure can reach 20MPa, 50MPa or 100MPa; Overflow valve 7 is used for the maximum pressure of restrictive pump 6, can set according to arts demand, at different materials and mould structure, maximum pressure is generally 100MPa, 150MPa or 200MPa, check valve 9 is used for isolating the highly pressurised liquid of liquid chamber 4, and fuel tank 10 is used to collect shaping medium.
When processing parts, at first two-layer or two-layer above sheet material 5a and 5b (multi-layer sheet can be in advance before shaping in conjunction with handling, geometric parameters such as the material between each laminate and thickness can be different) be placed on the die 3, the pressure-pad-force of blank holder 2 is f
pDetermine according to part flange size and material behavior, general unit pressure needs between the 0.5-5.0MPa, then blank holder 2 push down multi-layer sheet 5a and 5b with prevent the wrinkling of flange and be beneficial to liquid chamber 4 set up the needed pressure P that is shaped, generally can reach 50MPa or and even the root height, decide according to arts demand; Manufacturing process has two kinds, a kind ofly maintains static for punch 1, and punch is fixed in the promptly whole forming process, and convex mould surface is the shape of the formation of parts of wanting, and only depends on pump 6 to suppress generation pressure then, makes sheet material tightly abut in convex mould surface; Another kind is that pump 6 only instead expands for producing initially (technics is in order to allow sheet material how abut on the punch to the greatest extent as early as possible, to improve forming limit), and punch moves downward then, oppresses the higher pressure of liquid generation in the liquid chamber, makes sheet material tightly abut on the punch.First method is simple and direct, but that the sheet material forming limit improves is few, so many still second kind of usefulness.Adopt second method in this example, punch moves downward a multi-layer sheet 5a and 5b is pressed in the die 3, punch power f
pReaction force size according to sheet material and liquid chamber pressure is decided, general unit pressure needs between the 0.5-5.0MPa, pump 6 is mainly initial anti-bloated in order to produce to liquid chamber 4 pressurizations, be generally 20MPa, 30MPa, 50MPa or 100MPa, the pressure of liquid flexible media can be controlled with overflow valve 8 in the liquid chamber 4.Because the effect of liquid or other flexible media pressure, because fluid pressure can produce active force, be pressed against sheet material on the punch tightly, also being pressed together between while plate and the plate, can closely combine between part middle level that is shaped and the layer, and the formability of each layer is improved.Pump 6 can be realized to liquid chamber 4 pressurizations or produce the initial anti-function that expands.
Claims (5)
1, a kind of process for forming multilayer slab, it is characterized in that: at first two-layer or two-layer above sheet material is placed on the die surface, die normally, liquid chamber is arranged in the die, be filled with liquid or flexible media in the liquid chamber, blank holder is pushed down the both sides of two-layer or two-layer above sheet material, have pump in die liquid chamber topping up body or other flexible medias with supercharging, another mould, normally punch moves downward by in the middle of the blank holder two-layer or two-layer above sheet material being pressed in the die, effect owing to hydraulic pressure or other flexible media pressure between each laminate material is in contact with one another tightly, thereby the layer after being shaped is also combined closely with layer.
2, process for forming multilayer slab according to claim 1, it is characterized in that: described liquid is the liquid that various mineral oil, vegetable oil, edible oil, water and emulsion etc. have good flow behavior, flexible media mainly refers to rubber, motlten metal, resisting medium, as non-newtonian fluids such as silicon rubber, though flowability is good not as liquid, also can transmit pressure.
3, process for forming multilayer slab according to claim 1 is characterized in that: geometric parameters such as the material between described two-layer or two-layer above each laminate and thickness can be different.
4, process for forming multilayer slab according to claim 1 is characterized in that: the liquid in the described liquid chamber or the pressure of other flexible medias can be controlled.
5, process for forming multilayer slab according to claim 1 is characterized in that: described two-ply or two-layer above sheet material can be in advance in conjunction with handling before shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510011974 CN1693066A (en) | 2005-06-21 | 2005-06-21 | Process for forming multilayer slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510011974 CN1693066A (en) | 2005-06-21 | 2005-06-21 | Process for forming multilayer slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1693066A true CN1693066A (en) | 2005-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510011974 Pending CN1693066A (en) | 2005-06-21 | 2005-06-21 | Process for forming multilayer slab |
Country Status (1)
| Country | Link |
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| CN (1) | CN1693066A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318205B (en) * | 2008-06-24 | 2010-06-02 | 南京航空航天大学 | Circumferential nature supercharging plate liquid filling deep-drawing forming method and apparatus |
| CN101767188A (en) * | 2010-01-22 | 2010-07-07 | 中兴通讯股份有限公司 | Device and method for manufacturing mobile terminal shield |
| CN102756033A (en) * | 2011-04-27 | 2012-10-31 | 上海汇众汽车制造有限公司 | Multi-layer pipe quick liquid-filled forming method and system |
-
2005
- 2005-06-21 CN CN 200510011974 patent/CN1693066A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318205B (en) * | 2008-06-24 | 2010-06-02 | 南京航空航天大学 | Circumferential nature supercharging plate liquid filling deep-drawing forming method and apparatus |
| CN101767188A (en) * | 2010-01-22 | 2010-07-07 | 中兴通讯股份有限公司 | Device and method for manufacturing mobile terminal shield |
| CN102756033A (en) * | 2011-04-27 | 2012-10-31 | 上海汇众汽车制造有限公司 | Multi-layer pipe quick liquid-filled forming method and system |
| CN102756033B (en) * | 2011-04-27 | 2015-09-30 | 上海汇众汽车制造有限公司 | The quick liquid-filling shaping method and system of multilayer pipe |
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Application publication date: 20051109 |