CN106623578A - Forming method utilizing swelling pressure of tabular aluminum material - Google Patents
Forming method utilizing swelling pressure of tabular aluminum material Download PDFInfo
- Publication number
- CN106623578A CN106623578A CN201611255100.4A CN201611255100A CN106623578A CN 106623578 A CN106623578 A CN 106623578A CN 201611255100 A CN201611255100 A CN 201611255100A CN 106623578 A CN106623578 A CN 106623578A
- Authority
- CN
- China
- Prior art keywords
- aluminium
- aluminum material
- swelling pressure
- preheated
- lower mold
- 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.)
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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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/021—Deforming sheet bodies
-
- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/021—Deforming sheet bodies
- B21D26/027—Means for controlling fluid parameters, e.g. pressure or temperature
Abstract
The invention discloses a forming method utilizing swelling pressure of a tabular aluminum material. The forming method is characterized by comprising the following steps of fixing the aluminum material between an upper mold and a lower mold, wherein the aluminum material is preheated to 550-600 DEG C so that the preheated aluminum material is softened, the lower mold is a female mold, and the temperature of the upper mold and the lower mold is 550-600 DEG C; injecting gas to the upper mold, wherein the gas pressure is 120-160KPa; maintaining the temperature of the lower mold unchanged; enabling the aluminum material in a softened condition to be attached to the lower mold for shaping by the swelling pressure; and performing pressure maintaining and demolding, so as to obtain a product, wherein grains are formed in the inner wall of the lower mold. According to the forming method disclosed by the invention, the aluminum material is preheated so that the preheated aluminum material is in the softened condition, the upper mold and the lower mold for clamping the aluminum material is preheated, and then the aluminum material is attached to a lower mold cavity to form a product in a manner of the swelling pressure of gas; the grains are formed in the inner wall of the lower mold, so that multiple surfaces of a three-dimensional product are provided with the grains; and the manufacturing process of the forming method disclosed by the invention can be in quantitative production, the investment cost is low, and the production efficiency is high.
Description
Technical field
The present invention relates to plate forming technology, and in particular to a kind of utilization tabular aluminium swelling pressure for shelly stereo product
The method of molding.
Background technology
For existing aluminium product, the such as wounded in the battle panel of mobile phone battery cover, computer, no-welding-seam cavity part and other have
The part that 3D patterneds are required, the wherein predominantly organic processing of existing processing method, forging and stamping, embossing, process for machining maturation, can add
The various decorative patterns of work, and high precision, but machining input cost height, the such as textured mobile phone battery cover of inner surface band, put into 50W
Machining apparatus, be only capable of processing a mobile phone battery cover per hour, therefore, for the enterprise of requirement quantization, using machine plus
Work production expends too big, it is impossible to meeting the market requirement；Embossing, this mode is only capable of processing flat product, for mobile phone battery cover
Class product cannot be adopted；Forging and stamping, forging and stamping are widely applicable, but forging and stamping are for stereo product, such as mobile phone battery cover, and it is only capable of forging and pressing handss
The outer face of machine back cover, for the outer wall of mobile phone battery cover surrounding cannot forge and press out lines.
The content of the invention
The present invention is directed to the situation of prior art, mainly for mobile phone battery cover and close product, i.e. three-dimensional and internal demands
The product of lines especially complicated lines, there is provided it is textured that a kind of method of utilization tabular aluminium swelling pressure makes multiple masks
Stereo product, such as mobile phone battery cover, its manufacturing process is quick, can quantify production, and equipment cost is low.
To solve above-mentioned technical problem, one aspect of the present invention is：One kind using tabular aluminium swelling pressure into
The method of type, aluminium is fixed between upper die and lower die, wherein, aluminium is preheated to 550-600 DEG C softens it, and lower mould is recessed
Mould, the temperature of upper die and lower die is 550-600 DEG C,；
Inflation in mould upwards, air pressure is 120-160KG, the temperature inconvenience of lower mould is kept, using swelling pressure so that in soft state
The lower mold forming of aluminium laminating, pressurize, the demoulding form product.
Used as the preferred of such scheme, lower mould inwall is provided with lines.
Used as the preferred of such scheme, the thickness of aluminium is less than 2mm.
Used as the preferred of such scheme, aluminium is preheated to 550 DEG C, and the temperature of upper die and lower die is 550 DEG C, pressurize duration 50-
150 seconds.
Used as the preferred of such scheme, the thickness of aluminium is 2-4mm.
Used as the preferred of such scheme, aluminium is preheated to 580 DEG C, and the temperature of upper die and lower die is 580 DEG C, pressurize duration
The 150-350 seconds.
The invention has the beneficial effects as follows：By the way that aluminium preheating is at into soft state, the upper mould of clamping aluminium is with
Mould is preheated, and then causes aluminium to fit to form product with lower mode cavity by way of gas swelling pressure, and lower mould inwall is provided with stricture of vagina
Road so that the multiaspect of stereo product has lines, and the manufacture process can quantify production, and input cost is low, and production efficiency is high.
Specific embodiment
With reference to embodiment, the specific embodiment of the present invention is further described.
A kind of method of utilization tabular aluminium swelling pressure molding, can be used for stereo product, and mainly for following methods handss are related to
Machine back cover and close product, aluminium is fixed between upper die and lower die, wherein, aluminium is preheated to 550-600 DEG C, and aluminium is in soft
Change state, lower mould is die, and the temperature of upper die and lower die is 550-600 DEG C；Lower mould inwall is provided with lines.
Wherein, the lower side wall of mould inner surface at least one is provided with lines.
Inflation in mould upwards, air pressure is 120-160KG, keeps the temperature inconvenience of lower mould, using swelling pressure so that aluminium laminating
Lower mold forming, pressurize, the demoulding form multiaspect and have textured product, wherein, by displacing mould, only simultaneously（Under the back side-correspondence
Mould inner bottom surface）Stereo product with lines or without lines equally can be prepared using this method.
For said method, for specific mobile phone battery cover or other products, the aluminium thickness that it needs is different,
For the thickness of aluminium is less than 2mm, aluminium is preheated to 550 DEG C, and the temperature of upper die and lower die is 550 DEG C, pressurize duration 50-
150 seconds, specifically such as：1mm aluminiums, preheat the 20-30 seconds, and temperature reaches 550 degree, and upper die and lower die are preheated to 550 degree, pressurize
Shi Changwei 90 seconds, the error control of above-mentioned parameter is within ± 5.For thickness less than 1mm aluminium, preheating and upper mould and
At 550 ± 10 degree, pressurize duration can suitably successively decrease the temperature control of lower mould according to aluminium thickness, but be not less than 50 seconds, more than 1mm
The aluminium of thickness, pressurize duration gradually increases, and is not less than 90 seconds.
For the thickness of aluminium is 2-4mm, aluminium is preheated to 580-600 DEG C, the temperature of upper die and lower die is 580-600 DEG C,
Pressurize duration 150-350 seconds, actual temp and pressurize duration parameters gradually increase according to the thickness increase of aluminium, and pressurize duration is not
More than 350 seconds, temperature was not higher than 600 DEG C.
For mobile phone battery cover, its concrete production process includes the pre- oxygen of aluminium, molding, moves back oxygen, polishing/sandblasting, pre- oxygen, covers
Film, machining, finishing impression, move back oxygen, polishing/sandblasting, anode, laser carving, bloom, anode, inspection bag, wherein molding adopt above-mentioned utilization
The method of tabular aluminium swelling pressure molding.
For a person skilled in the art, still the technical scheme described in foregoing embodiments can be repaiied
Change, or equivalent carried out to which part technical characteristic, it is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of method of utilization tabular aluminium swelling pressure molding, it is characterised in that
Aluminium is fixed between upper die and lower die, wherein, aluminium is preheated to 550-600 DEG C softens it, and lower mould is die, on
Mould, the temperature of lower mould are 550-600 DEG C；
Inflation in mould upwards, air pressure is 120-160KG, the temperature inconvenience of lower mould is kept, using swelling pressure so that in soft state
The lower mold forming of aluminium laminating, pressurize, the demoulding form product.
2. as claimed in claim 1 using the method for tabular aluminium swelling pressure molding, it is characterised in that lower mould inwall is provided with stricture of vagina
Road.
3. as claimed in claim 1 or 2 using the method for tabular aluminium swelling pressure molding, it is characterised in that the thickness of aluminium is little
In 2mm.
4. as claimed in claim 3 using the method for tabular aluminium swelling pressure molding, it is characterised in that aluminium is preheated to 550 DEG C,
The temperature of upper die and lower die is 550 DEG C, pressurize duration 50-150 seconds.
5. the method using tabular aluminium swelling pressure molding as claimed in claim 1 or 2, it is characterised in that the thickness of aluminium is
2-4mm。
6. as claimed in claim 5 using the method for tabular aluminium swelling pressure molding, it is characterised in that aluminium is preheated to 580 DEG C,
The temperature of upper die and lower die is 580 DEG C, pressurize duration 150-350 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255100.4A CN106623578A (en) | 2016-12-30 | 2016-12-30 | Forming method utilizing swelling pressure of tabular aluminum material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255100.4A CN106623578A (en) | 2016-12-30 | 2016-12-30 | Forming method utilizing swelling pressure of tabular aluminum material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106623578A true CN106623578A (en) | 2017-05-10 |
Family
ID=58837264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611255100.4A Pending CN106623578A (en) | 2016-12-30 | 2016-12-30 | Forming method utilizing swelling pressure of tabular aluminum material |
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| Country | Link |
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| CN (1) | CN106623578A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010162777A (en) * | 2009-01-16 | 2010-07-29 | Kojima Press Industry Co Ltd | Method of manufacturing decorative resin molded object |
| CN103846331A (en) * | 2014-03-27 | 2014-06-11 | 北京航空航天大学 | Bidirectional pressing liquid-charging forming method for large-size thin-wall complex characteristic panel |
| CN104438539A (en) * | 2014-11-04 | 2015-03-25 | 贵州风雷航空军械有限责任公司 | Large thin-wall cup-shaped metal bulging device |
| CN105149409A (en) * | 2015-09-10 | 2015-12-16 | 鼎艺科技股份有限公司 | Metal sheet forming device and metal sheet forming method |
| CN105578821A (en) * | 2014-10-13 | 2016-05-11 | 联想(北京)有限公司 | Electronic equipment and housing preparation method thereof |
-
2016
- 2016-12-30 CN CN201611255100.4A patent/CN106623578A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010162777A (en) * | 2009-01-16 | 2010-07-29 | Kojima Press Industry Co Ltd | Method of manufacturing decorative resin molded object |
| CN103846331A (en) * | 2014-03-27 | 2014-06-11 | 北京航空航天大学 | Bidirectional pressing liquid-charging forming method for large-size thin-wall complex characteristic panel |
| CN105578821A (en) * | 2014-10-13 | 2016-05-11 | 联想(北京)有限公司 | Electronic equipment and housing preparation method thereof |
| CN104438539A (en) * | 2014-11-04 | 2015-03-25 | 贵州风雷航空军械有限责任公司 | Large thin-wall cup-shaped metal bulging device |
| CN105149409A (en) * | 2015-09-10 | 2015-12-16 | 鼎艺科技股份有限公司 | Metal sheet forming device and metal sheet forming method |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |