CN102989857A - Forming method of sheet metal - Google Patents
Forming method of sheet metal Download PDFInfo
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- CN102989857A CN102989857A CN2012103430708A CN201210343070A CN102989857A CN 102989857 A CN102989857 A CN 102989857A CN 2012103430708 A CN2012103430708 A CN 2012103430708A CN 201210343070 A CN201210343070 A CN 201210343070A CN 102989857 A CN102989857 A CN 102989857A
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Abstract
The invention discloses a forming method of sheet metal, in particular relates to a forming method of sheet metal by using performing. The method mainly comprises the steps of: preforming a piece of sheet metal or providing a performing piece, and carrying out high-pressure forming so as to manufacture a low-draw ratio performing piece, a high-draw ratio performing piece, and a performing piece containing a plurality of thick areas or a composite part meeting special requirements.
Description
Technical field
The present invention relates to a kind of forming method of sheet metal, relate in particular to a kind of forming method that utilizes preformed sheet metal.
Background technology
Because sell greatly in the whole world of 3C information products and high-order household appliances, the metal shell body becomes the perhaps basic outfit of commodity already.General existing metal forming process mainly can be divided into three kinds: punch forming, vacuum forming or high-pressure molding.Wherein, the organigram that is a kind of existing sheet metal formation system shown in Figure 1.
The mould 11 of existing sheet metal formation system 11 includes a sealed mould 11 and a molding 155, and shaping mould 115 is placed on the workbench 19.Have an annular seal space 112 and a transfer port 175 in the sealed mould 111.Then be provided with a forming cavity 116 in the shaping mould 115.The periphery of sealed mould 111 and shaping mould 115 is provided with a voltage pipe 13, and electrothermal tube 13 will impose a high-temperature heating to the sheet metal that mould 11 is placed in the mould 11.
When the temperature of sheet metal 15 reaches a design temperature, gases at high pressure generator 171 will produce gases at high pressure 179, and be sent in the annular seal space 112 via appendix 173 and transfer port 175.Utilize 179 pairs of gases at high pressure thermoplastic sheet metal 15 impose a gas pressure Pa, can make softening sheet metal 15 in the lower chamber wall that is attached at forming cavity 116 of gas pressure Pa effect, use forming a metal forming part 155.
Because all material work in-process all can only reach certain draw ratio, too high draw ratio will cause profiled member to lose uniformity, structural damage, even crack, ruptures etc.Therefore, the profiled member of high draw ratio is produced on relevant industry and has suitable degree of difficulty always.
In addition, existing sheet metal high-pressure molding technique can only be utilized the ductility of metal material usually, makes the thick profiled member finished product of homogeneous meat.When being configured with specific demand for finished product, need to make when having the profiled member in the thick zone of different meat, then need seek other manufacture craft and support.
Summary of the invention
Main purpose of the present invention is to provide a kind of forming method of sheet metal, espespecially a kind of forming method that utilizes preformed sheet metal.
Secondary objective of the present invention is to provide a kind of forming method of sheet metal, utilizes preforming process and can finish the making of high draw ratio profiled member.
Another purpose of the present invention is to provide a kind of forming method of sheet metal, utilizes preforming process and can finish the making with the thick drape forming spare of a plurality of meat.
Another purpose of the present invention is to provide a kind of forming method of sheet metal, makes profiled member be combined with a preformed member in high-pressure molding technique, can form the composite members of special tectonic.
For reaching above-mentioned purpose, the invention provides a kind of forming method of sheet metal, include: one provides the step of a sheet metal; A pair of this sheet metal carries out preformed step, uses to form a preformed member; Reach the step that a pair of this preformed member carries out moulding, use forming a profiled member.
In an embodiment of the forming method of above-mentioned sheet metal, wherein should carry out one of them of step that preformed step may be selected to be the step of a stamping forming step, a milling moulding and a high-pressure molding to this sheet metal.
In an embodiment of the forming method of above-mentioned sheet metal, wherein this is the step of a high-pressure molding to the step that preformed member carries out moulding.
In an embodiment of the forming method of above-mentioned sheet metal, wherein this preformed member may be selected to be one of them that a low draw ratio profiled member and has the thick drape forming spare of different meat.
In an embodiment of the forming method of above-mentioned sheet metal, wherein this profiled member may be selected to be one of them that a low draw ratio profiled member, a high draw ratio profiled member and have the thick drape forming spare of a plurality of meat.
In an embodiment of the forming method of above-mentioned sheet metal, wherein the step of this high-pressure molding includes: a mould is provided, this mould includes a sealed mould and a molding, is provided with an annular seal space and one or more entrance hole in the sealing mould, is provided with a forming cavity in this shaping mould; Provide one or more heater, in order to this mould is heated; This preformed member is positioned between the shaping mould and sealed mould of this mould; One or more fluid feeding unit is provided, the entrance hole that connects the sealing mould, and a high-pressure fluid imported the sealing chamber via this entrance hole, utilize high-pressure fluid that this preformed member is bestowed a fluid pressure, make the distortion of this preformed member and be attached at the surface of this forming cavity, form this profiled member.
In an embodiment of the forming method of above-mentioned sheet metal, wherein this high-pressure fluid may be selected to be one of them of a liquid, an air and an inert gas.
The present invention also provides a kind of forming method of sheet metal, includes: one provides the step of a preformed member; One provides the step of a mould, and this mould includes a sealed mould and a molding, is provided with an annular seal space and one or more entrance hole in the sealing mould, is provided with a forming cavity in this shaping mould; One provides the step of one or more heater, utilizes this heater that this mould is heated; One places the step of this forming cavity one predeterminated position with this preformed member; One provides the step of a sheet metal, this sheet metal is positioned between the shaping mould and sealed mould of this mould; And the step that one or more fluid feeding unit is provided, make this fluid feeding unit connect the entrance hole of sealing mould, and a high-pressure fluid imported the sealing chamber via this entrance hole, utilize high-pressure fluid that this sheet metal is bestowed a fluid pressure, make the distortion of this sheet metal and be attached at the surface of this forming cavity and preformed member, form a profiled member, this profiled member also is combined with this preformed member and is formed a composite members.
In an embodiment of the forming method of above-mentioned sheet metal, wherein this preformed member can be selected to make in wherein a kind of mode of punch forming, milling moulding, ejection formation and die cast.
In an embodiment of the forming method of above-mentioned sheet metal, wherein this preformed member can select to make with the identical or different material of this sheet metal.
In an embodiment of the forming method of above-mentioned sheet metal, wherein this high-pressure fluid may be selected to be one of them of a liquid, an air and an inert gas.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
The organigram of the existing sheet metal formation system of Fig. 1;
The flow chart of forming method one embodiment of Fig. 2 sheet metal of the present invention;
Fig. 3 and Fig. 4 are respectively each step schematic diagram of forming method one embodiment of sheet metal of the present invention;
Fig. 5 and Fig. 6 are respectively each step schematic diagram of another embodiment of forming method of sheet metal of the present invention;
The flow chart of the another embodiment of forming method of Fig. 7 sheet metal of the present invention;
Fig. 8 and Fig. 9 are respectively each step schematic diagram of the another embodiment of forming method of sheet metal of the present invention.
Wherein, Reference numeral
10 sheet metal formation systems, 11 moulds
111 sealed moulds, 112 annular seal spaces
115 shaping moulds, 116 forming cavities
13 electrothermal tubes, 15 sheet metals
155 metal forming parts, 171 gases at high pressure generators
173 appendixs, 175 transfer ports
179 gases at high pressure, 19 workbench
201 to 205 steps
30 sheet metal formation systems, 31 sealed moulds
311 annular seal spaces, 313 entrance holes
315 leadout holes, 33 preforming moulds
331 forming cavities, 34 shaping moulds
341 forming cavities, 35 sheet metals
351 preformed members, 353 profiled members
37 heaters, 39 fluid feeding units
391 fluid generators, 393 conduits
395 high-pressure fluids
52 sheet metals, 54 preformed members
541 first areas, 543 second areas
60 sheet metal formation systems, 63 shaping moulds
631 forming cavities, 65 profiled members
651 first thick meat parts, 653 second thick meat parts
655 the 3rd thick meat parts
701 to 705 steps
80 preformed members
90 sheet metal formation systems, 93 shaping moulds
931 forming cavities, 95 sheet metals
951 profiled members, 953 composite members
The specific embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are done concrete description:
See also Fig. 2, the flow chart of forming method one embodiment of sheet metal of the present invention.As shown in the figure, the forming method of sheet metal of the present invention includes the step that a sheet metal is provided, such as step 201.Wherein, this sheet metal may be selected to be a kind of sheet metal wherein of stainless steel, copper, aluminium, magnesium alloy, titanium alloy, almag, nickel based super alloy, tungsten, molybdenum or cobalt.
Then, on demand this sheet metal is carried out a preformed step, use forming a preformed member, such as step 203.Wherein, this preformed step can be chosen as one of them of step of the step of a stamping forming step, a milling moulding and a high-pressure molding on demand.For example, when the finished product demand is when having the profiled member of high draw ratio, can utilize the step of high-pressure molding to finish a making of hanging down the draw ratio profiled member, as a preformed member.When the finished product demand is when having the profiled member in the thick zone of different meat, the step that then can utilize punch forming or milling to be shaped is finished the work with the thick zone of different meat, as a preformed member.
At last, then the preformed member of abovementioned steps made is carried out the step of a moulding, use forming a profiled member, such as step 205.According to different preformed members, cooperate suitable mould, can finish the profiled member of tool specific demand, such as the profiled member of the profiled member with high draw ratio, low draw ratio or have the profiled member etc. in the thick zone of a plurality of meat.
See also Fig. 3 and Fig. 4, be respectively each step schematic diagram of forming method one embodiment of sheet metal of the present invention.As shown in the figure, the preformed step of present embodiment is to adopt the step of high-pressure molding.
Present embodiment sheet metal formation system 30 includes a sealed mould 31, a preforming mould 33, a molding 34, one or more heater 37 and one or more fluid feeding unit 39.
Wherein, be provided with an annular seal space 311 and one or more entrance hole 313 in the sealed mould 31, be provided with a forming cavity 331 in the preforming mould 33, then be provided with a forming cavity 341 in the shaping mould 34.Heater 37 is in order to heated sealant mould 31, preforming mould 33 and shaping mould 34, and can directly or indirectly heat sheet metal 35.The fluid generator 391 of fluid feeding unit 39 can produce a high-pressure fluid 395, and the entrance hole 313 of high-pressure fluid 395 via conduit 293 and sealed mould 31 imported in the annular seal space 311.
In the preformed step of present embodiment, mainly provide a sheet metal 35, and make sheet metal 35 be positioned between sealed mould 31 and the preforming mould 33.When sheet metal 35 softens because heater 37 direct or indirect heating reach a preset temperature, utilize fluid generator 391 to produce high-pressure fluid 395, import in the annular seal space 311 via conduit 393 and entrance hole 313, this sheet metal 35 is bestowed a fluid pressure Pa, can make sheet metal 35 homogeneous deformations and be attached at the chamber wall of forming cavity 331, form a preformed member 351, as shown in Figure 3.Wherein, this preformed member 351 can be low draw ratio profiled member, high draw ratio profiled member or the better simply profiled member of a shape.
After finishing the making of preformed member 351, preformed member 351 can be positioned between sealed mould 31 and the shaping mould 34.When preformed member 351 softens because heater 37 direct or indirect heating reach a preset temperature, utilize fluid generator 391 to produce high-pressure fluid 395, and via in conduit 393 and the entrance hole 313 importing annular seal spaces 311, this preformed member 351 is bestowed a fluid pressure Pa, can make preformed member 351 homogeneous deformations and be attached at the chamber wall of forming cavity 341, form required profiled member 353, as shown in Figure 4.Wherein, this profiled member 353 is a high draw ratio profiled member with respect to sheet metal 35, utilizes preformed step and can keep the uniformity of profiled member 353, and prevent its structural damage or crack.
In one embodiment of this invention, sealed mould 31 also can be provided with a leadout hole 315, and is outside in order to the fluid in the annular seal space 311 is derived mould.
See also Fig. 5 and Fig. 6, be respectively each step schematic diagram of another embodiment of forming method of sheet metal of the present invention.Wherein, the purpose of present embodiment is to make and has the thick profiled member of a plurality of meat 65.
In the present embodiment, the preformed step can be selected with punch forming or milling moulding, makes sheet metal 52 form one and has the first area 541 of different-thickness and the preformed member 54 of second area 543, as shown in Figure 5.
After finishing the making of preformed member 54, preformed member 54 can be positioned between sealed mould 31 and the shaping mould 63.When preformed member 54 softens because heater 37 direct or indirect heating reach a preset temperature, utilize fluid generator 391 to produce high-pressure fluid 395, and via in conduit 393 and the entrance hole 313 importing annular seal spaces 311, this preformed member 54 is bestowed a fluid pressure Pa, can make preformed member 54 produce distortion and be attached at the chamber wall of forming cavity 631, form required profiled member 65, as shown in Figure 6.
In the present embodiment, because preformed member 54 has the thick zone of different meat (such as first area 541 and second area 543), therefore bear fluid pressure Pa and when being out of shape, first area 541 also can produce different proportion of deformations from second area 543, fit in the design of pattern 63 and the effect of pushing, can produce the special formed profiled member 65 of the first thick meat part 651, the second thick meat part 653 and the 3rd thick meat part 655, as shown in Figure 6.
See also Fig. 7, Fig. 8 and Fig. 9, be respectively flow chart and each the step schematic diagram of the another embodiment of forming method of sheet metal of the present invention.As shown in the figure, present embodiment at first provides a preformed member 80, such as step 701.This preformed member 80 can be selected to make with the moulding on demand of the methods such as punch forming, milling moulding, ejection formation and die cast, as shown in Figure 8.
After preformed member 80 completes, preformed member 80 is inserted predeterminated position in the mould, such as step 703.Wherein, sheet metal formation system 90 includes a mould, one or more heater 37 and one or more fluid feeding unit 39.Wherein, mould includes a sealed mould 31 and a molding 93.Be provided with an annular seal space 311 and one or more entrance hole 313 in the sealed mould 31, be provided with a forming cavity 931 in the shaping mould 93.In the present embodiment, preformed member 80 is the peripheries that place forming cavity 931 bottoms.
After inserting preformed member 80 in the mould, a sheet metal 95 is positioned between sealed mould 31 and the shaping mould 93, and this sheet metal 95 is carried out the step of high-pressure molding, such as step 705.Wherein, the step of high-pressure molding includes directly or indirectly to heat with 37 pairs of these sheet metals 95 of heater and reaches a preset temperature and make it softening, and utilize fluid generator 391 to produce high-pressure fluid 395, and via in conduit 393 and the entrance hole 313 importing annular seal spaces 311, this sheet metal 95 is bestowed a fluid pressure Pa, can make sheet metal 95 homogeneous deformations and be attached on the chamber wall and preformed member 80 of forming cavity 341, form a profiled member 951.At this moment, because profiled member 951 still is in the soft state of this preset temperature, will form a composite members 553 because fluid pressure Pa combines closely with preformed member 80.
In the present embodiment, the bottom periphery of this composite members 553 will be because having larger thick meat with preformed member 80 combinations.Wherein, this preformed member 80 can be selected to be identical material or unlike material making with sheet metal 95.
In the above-described embodiments, to the direct heating of sheet metal or preformed member, refer to directly heat with 37 pairs of sheet metals of heater or preformed member and reach this preset temperature.Indirect to sheet metal or preformed member, after referring to heater 37 heating moulds (being sealed mould and shaping mould), sheet metal or preformed member are positioned between sealed mould and the shaping mould, by the temperature of sealed mould and shaping mould sheet metal or preformed member heating are reached this preset temperature.This high-pressure fluid is to may be selected to be one of them of a liquid, an air and an inert gas.In addition, in above-mentioned each high-pressure molding technique, if the chamber wall of forming cavity has decorative pattern, pattern or other structures, when sheet metal or preformed member are attached at the chamber wall because of fluid pressure Pa, also can form in the surface of profiled member corresponding decorative pattern, pattern or other structures.
Certainly; the present invention also can have other various embodiments; in the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. the forming method of a sheet metal is characterized in that, includes:
One provides the step of a sheet metal;
A pair of this sheet metal carries out preformed step, uses to form a preformed member; And
A pair of this preformed member carries out the step of moulding, uses to form a profiled member.
2. the forming method of sheet metal according to claim 1 is characterized in that, one of them of described step of this sheet metal being carried out step that preformed step is a stamping forming step, a milling moulding and a high-pressure molding.
3. the forming method of sheet metal according to claim 1 is characterized in that, the described step that preformed member is carried out moulding is the step of a high-pressure molding.
4. the forming method of sheet metal according to claim 1 is characterized in that, described preformed member is one of them of low draw ratio profiled member, a high draw ratio profiled member and the thick drape forming spare of a plurality of meat of a tool.
5. the forming method of sheet metal according to claim 1 is characterized in that, this profiled member system may be selected to be a low draw ratio profiled member, a high draw ratio profiled member and has it is characterized in that of the thick drape forming spare of a plurality of meat, one.
6. the forming method of sheet metal according to claim 3 is characterized in that, the step of this high-pressure molding includes:
One mould is provided, and this mould includes a sealed mould and a molding, is provided with an annular seal space and one or more entrance hole in the sealing mould, is provided with a forming cavity in this shaping mould;
Provide one or more heater, in order to this mould is heated;
This preformed member is positioned between the shaping mould and sealed mould of this mould;
One or more fluid feeding unit is provided, the entrance hole that connects the sealing mould, and a high-pressure fluid imported the sealing chamber via this entrance hole, utilize high-pressure fluid that this preformed member is bestowed a fluid pressure, make the distortion of this preformed member and be attached at the chamber wall of this forming cavity, form this profiled member.
7. the forming method of a sheet metal is characterized in that, includes:
One provides the step of a preformed member;
One provides the step of a mould, and this mould includes a sealed mould and a molding, is provided with an annular seal space and one or more entrance hole in the sealing mould, is provided with a forming cavity in this shaping mould;
One provides the step of one or more heater, utilizes this heater that this mould is heated;
One places the step of this forming cavity one predeterminated position with this preformed member;
One provides the step of a sheet metal, this sheet metal is positioned between the shaping mould and sealed mould of this mould; And
One provides the step of one or more fluid feeding unit, make this fluid feeding unit connect the entrance hole of sealing mould, and a high-pressure fluid imported the sealing chamber via this entrance hole, utilize high-pressure fluid that this sheet metal is bestowed a fluid pressure, make this sheet metal distortion and be attached at the chamber wall of this forming cavity and the surface of preformed member, form a profiled member, this profiled member also is combined with this preformed member and is formed a composite members.
8. the forming method of sheet metal according to claim 7 is characterized in that, this preformed member is made in wherein a kind of mode of punch forming, milling moulding, ejection formation and die cast.
9. the forming method of sheet metal according to claim 7 is characterized in that, this preformed member is with the material making identical or different with this sheet metal.
10. according to claim 6 or the forming method of 7 described sheet metals, it is characterized in that, this high-pressure fluid be a liquid, an air, an inert gas and knockdown one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103430708A CN102989857A (en) | 2012-09-14 | 2012-09-14 | Forming method of sheet metal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103430708A CN102989857A (en) | 2012-09-14 | 2012-09-14 | Forming method of sheet metal |
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| CN102989857A true CN102989857A (en) | 2013-03-27 |
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| CN2012103430708A Pending CN102989857A (en) | 2012-09-14 | 2012-09-14 | Forming method of sheet metal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104070100A (en) * | 2013-03-29 | 2014-10-01 | 联想(北京)有限公司 | Manufacture method of workpiece |
| CN106563782A (en) * | 2015-10-08 | 2017-04-19 | 蔡蓉 | Metal machine shell machining system and method |
| CN107737863A (en) * | 2017-10-26 | 2018-02-27 | 齐鲁工业大学 | Customization slab method based on forging technology |
| CN108188245A (en) * | 2018-03-02 | 2018-06-22 | 沈阳飞机工业（集团）有限公司 | A kind of manufacturing process of airplane intake lip superplastic forming die |
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| CN104070100A (en) * | 2013-03-29 | 2014-10-01 | 联想(北京)有限公司 | Manufacture method of workpiece |
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| CN107737863A (en) * | 2017-10-26 | 2018-02-27 | 齐鲁工业大学 | Customization slab method based on forging technology |
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| CN108188245A (en) * | 2018-03-02 | 2018-06-22 | 沈阳飞机工业（集团）有限公司 | A kind of manufacturing process of airplane intake lip superplastic forming die |
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Application publication date: 20130327 |