CN1003843B - Method for forming fluidized particles of metal sheet - Google Patents
Method for forming fluidized particles of metal sheet Download PDFInfo
- Publication number
- CN1003843B CN1003843B CN88105357.0A CN88105357A CN1003843B CN 1003843 B CN1003843 B CN 1003843B CN 88105357 A CN88105357 A CN 88105357A CN 1003843 B CN1003843 B CN 1003843B
- Authority
- CN
- China
- Prior art keywords
- elastomer
- metal sheet
- graininess
- forming
- sheet parts
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 title claims abstract description 11
- 239000002245 particle Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims description 16
- 239000000806 elastomer Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 description 7
- 239000013536 elastomeric material Substances 0.000 description 6
- 238000004080 punching Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a pressure working forming method for metal sheet parts using granular elastic body in fluid state as female die, it is applicable to forming metal sheet parts whose thickness is less than 2 mm, specially large-sized complex-shaped sheet parts (for example, covering component of automobile and tractor and shell body of aviation and spacecraft). The method can shorten the mold manufacturing period and reduce the cost.
Description
The present invention is a kind of new sheet metal part forming method, is applicable to the particularly large-scale complex-shaped part forming of sheet part that 2mm is following.
The conventional method that sheet part is shaped is that punching block is shaped.And the die manufacturing cycle in the punching block is long, cost is high.In order to address this problem, U.S. Pat-4689979 has been announced and has been injected the high viscosity fluid substance forms the die of sheet metal pressure forming process as medium method in the frame a kind of the appearance at metal.Though this method cost is lower than punching block, but still has following point:
1. the first method in four kinds of methods of this patent there is no practical value.Because in forming process, owing to there is not sealing device, high viscosity fluidised form medium under high pressure still can be extruded from template and between the plate being shaped; After shaping, some media also can be bonded on the formation of parts.So just must be behind each part forming replenish the medium with the medium equivalent that loses immediately, otherwise will make that the unnecessary space of generation causes forming quality bad in the die because of losing the part medium.Moreover to accurately measure also trouble of amount that medium loses.So even this technology also is unacceptable to small lot batch manufacture.
2. the main distinction of the second～four kind of method and first method is to have added elastic plate between plate to be processed and high viscosity fluidised form medium.Be extruded and adhesion problem though solved the medium that first method produced like this, but produced following new problem:
(1) high viscosity fluidised form medium does not directly contact plate, but transmits pressure by elastic plate.Its excellent forming property can not be given full play to like this, it will be subjected to the restriction of elastic plate performance, and elastic plate is because the needs that are shaped, must select for use easily deformable soft elastomeric material to make, and the intensity of soft elastomeric material lower (as tensile strength only be the high rigidity elastomeric material 1/2～1/4), under high pressure work, the life-span is low.Again can not be general, and because of this material price height, so cost is higher.
(2) the monoblock elastic plate can not flow, so coefficient of friction is bigger in shaping and between the contact-making surface of plate, has increased the tonnage of press device.
(3) forming property of monoblock elastic plate is bad, exists unintelligiblely as parts profile, and problem such as accuracy of repetition is low influences the manufactured goods quality.
(4) mould structure complexity.
(5) in forming process, huge pressure energy major part converts heat energy to and accumulates in the elastic plate, and the radiating surface of itself is very little, for improving its life-span, can only use on the hydraulic press of low speed, so efficient is low.
The purpose of this invention is to provide a kind of new manufacturing process, can address the above problem preferably.
Characteristics of the present invention are to adopt the graininess elastomer as medium.
It is that example illustrates with the drawing die that the present invention is achieved in that existing, at first rubber or plastics (as polyurethane) elastomer is made graininess, and shape is good with spheroidal.Granular size can be determined according to the size of part and the complexity of shape, is principle with the minimum concave surface that can pass in and out easily in the complicated shape, recommends to use size: diameter 5～30mm(spheroidal).Then particle is put into metal appearance frame and formed die (counterdie), place plate to be processed on it, on the power material blank holder is arranged, under the pressure-pad-force effect, formed an enclosed cavity.When punch (patrix) descended, the graininess elastomer at first produce to flow under pressure, after eliminate substantially in the space between elastomer, produced distortion again, plate is pressed on the punch and is shaped.
The present invention except that be applicable to draw, also can be used for bending and expansion forming (all must in enclosed cavity, carry out).
The present invention compares with U.S. Pat-4689979, and following advantage is arranged:
1. elastomeric material can be general, so Master Cost is low.
2. easily reduce than monoblock elastic plate because of the elastomer particles flowability during moulding and the shaping plate between the friction consumed energy, the press device tonnage is descended.
3. even elastomer particles is under high pressure, do not exist yet because of break out of use problem thus the life-span long.
4. the surface area of elastomer particles is more much bigger than monoblock elastic plate, so heat-sinking capability is also much bigger, can select the higher forcing press of speed for use when being shaped, and raises the efficiency.
5. can select the high rigidity elastomeric material for use or make particle, so both improve the intensity of material, not influence again and flow and shaping with metal (as aluminium) fiber or powder with the elastomeric material that nonmetal (as glass, carbon, boron) fiber etc. strengthens.
6. owing to have the gap between elastomer particles, can be in the solid lubricant methods such as (as molybdenum bisuphide, graphite powders) of the different lubricating requirement modulation when adopting topping up at need or sneaking into that is shaped by the different materials part forming, improve molding condition, improve cooling effect.
7. because elastomer is a solid, therefore in shaping, can not produce leakage, after shaping, can not bond yet,, need not to increase dividing plate, yet so mould structure is simple so need not sealing with manufactured goods.
Claims (4)
1, a kind of with the sheet metal part forming method of fluidised form medium as die, it is characterized in that this fluidised form medium is to make granular elastomer.
2, method according to claim 1 is characterized in that this graininess elastomer can use rubber, plastics manufacturings such as (as polyurethane).
3, method according to claim 1 is characterized in that this elastomer particles can be with the high rigidity elastomer or with metal (as aluminium) fiber or powder, and fibre-reinforced elastomers such as nonmetal (as glass, carbon, boron) is made, with the raising bearing capacity.
4, method according to claim 1, it is characterized in that to adopt at topping up between the graininess elastomer or sneak into by the solid lubricant methods such as (as molybdenum bisuphide, graphite powders) of the different lubricating requirement modulation of different materials part when being shaped and improve molding condition, improve cooling effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88105357.0A CN1003843B (en) | 1988-01-21 | 1988-01-21 | Method for forming fluidized particles of metal sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88105357.0A CN1003843B (en) | 1988-01-21 | 1988-01-21 | Method for forming fluidized particles of metal sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1031666A CN1031666A (en) | 1989-03-15 |
| CN1003843B true CN1003843B (en) | 1989-04-12 |
Family
ID=4833559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88105357.0A Expired CN1003843B (en) | 1988-01-21 | 1988-01-21 | Method for forming fluidized particles of metal sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1003843B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376340C (en) * | 2005-01-24 | 2008-03-26 | 燕山大学 | Half-mould forming process for metal plate material |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837407A (en) * | 2010-04-15 | 2010-09-22 | 重庆理工大学 | Forming die by solid particle medium and radial thrust |
| CN102581106B (en) * | 2012-03-08 | 2013-10-30 | 深圳大学 | Miniature sheet-metal part drawing method |
| CN103143622B (en) * | 2013-02-26 | 2016-03-09 | 武汉理工大学 | A kind of medium manufacturing process for improving thick-walled metal pipe fitting forming property |
| CN104815903B (en) * | 2013-06-28 | 2016-08-24 | 东莞市卓强五金模具有限公司 | A kind of mould |
-
1988
- 1988-01-21 CN CN88105357.0A patent/CN1003843B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376340C (en) * | 2005-01-24 | 2008-03-26 | 燕山大学 | Half-mould forming process for metal plate material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1031666A (en) | 1989-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| C13 | Decision | ||
| C14 | Grant of patent or utility model | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |