CN104492843A - Inverted-T-shaped channel compression deformation die - Google Patents
Inverted-T-shaped channel compression deformation die Download PDFInfo
- Publication number
- CN104492843A CN104492843A CN201410614363.4A CN201410614363A CN104492843A CN 104492843 A CN104492843 A CN 104492843A CN 201410614363 A CN201410614363 A CN 201410614363A CN 104492843 A CN104492843 A CN 104492843A
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- Prior art keywords
- channel
- die
- extruding
- roller
- supporting plate
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- 230000006835 compression Effects 0.000 title abstract description 3
- 238000007906 compression Methods 0.000 title abstract description 3
- 238000003825 pressing Methods 0.000 claims description 24
- 238000001125 extrusion Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 239000007769 metal material Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- IGRCWJPBLWGNPX-UHFFFAOYSA-N 3-(2-chlorophenyl)-n-(4-chlorophenyl)-n,5-dimethyl-1,2-oxazole-4-carboxamide Chemical compound C=1C=C(Cl)C=CC=1N(C)C(=O)C1=C(C)ON=C1C1=CC=CC=C1Cl IGRCWJPBLWGNPX-UHFFFAOYSA-N 0.000 description 1
- 241000168254 Siro Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010274 multidirectional forging Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
A provided inverted-T-shaped channel compression deformation die comprises extrusion support plates, extrusion support plate slideways, a front die, a rear die and roller slideways; the front de is fixedly disposed on the rear die via a bolt, the rear die is fixedly disposed on a horizontal workbench via a bolt, and the opposite faces of the front die and the rear die are both provided with a vertical channel; the upper ends of the vertical channels are communicated with the exterior of the die, and the bottom ends of the vertical channels are in communication via a horizontal channel, and the shape and the area of the cross sections of the vertical channels and the horizontal channel are same; and two opposite sides of each vertical channel are both provided with the extrusion support plate slideway in which the extrusion support plate is installed, and the rear of each extrusion support plate slideway is provided with one roller slideway, and a roller in the roller slideway is tightly contacted with the corresponding extrusion support plate and a blank material. The die structure is capable of substantially reducing the frictional force between the blank material and the die channels, saving the die mounting and dismounting time and reducing test cost.
Description
Technical field
The invention belongs to intermetallic composite coating field shaping technique, the especially a kind of novel channel pressings of falling T-shape deforming moulds metal material being carried out to large plastometric set.
Background technology
Ultrafine grain metal material (crystallite dimension 0.1 ~ 1 μm) has excellent physical and mechanical property than coarse grain material.Large plastometric set is the common method preparing ultrafine grain metal material, has dense structure, the advantage such as pollution-free, in widespread attention in recent years.At present, conventional large plastometric set method such as to have at channel pressings (the equal channel angular pressing, ECAP), high pressure torsion (high pressure torsion, HPT), accumulation ply rolling (accumulative roll bonding, ARB), multiway forging (multi directional forging, and upsetting pressure repeatedly (cyclic channel die compression, CCDC) etc. MDF).Its medium channel pressings is one of most popular means, waits channel pressings to be out of shape the mould used and is mostly " L " type channel die, and this mould structure operation is more complicated, and labour intensity is comparatively large, the easy unstable fracture of pressure ram.
Chinese patent 200820200226.6 discloses a kind of T-shaped channel squeezer.Compared with the channel pressings deforming moulds such as this device and traditional " L " type, every time extrusion deformation degree is larger, can better crystal grain thinning.But this apparatus structure is complicated, operation labour intensity is larger, at the end of extruding, need to take out base plate and could take out sample, complex operation, and sample to extrude produced distortion frictional force in the channel still very large, make the waste of mould excessive on the one hand, reduce die life, on the other hand, the distortion frictional force that blank extrudes generation in the channel makes the uneven microstructure in the heart portion of blank surface, produces deformational stress.
Summary of the invention
For Shortcomings in prior art, the invention provides a kind of simple for structure, energy consumption is little, can reduce the novel channel pressings of the falling T-shape deforming moulds of frictional force between die channel inwall and blank simultaneously.
The present invention realizes above-mentioned technical purpose by following technological means.
A kind of channel pressings of falling T-shape deformation device, comprise extruding supporting plate, extruding pallet runners, front mould and rear mold, described front mould is bolted in rear mold by first, described rear mold is bolted on horizontal operation table top by second, vertical channel is respectively equipped with at described front mould and rear mold opposite face, the upper end of described vertical channel is communicated with mold exterior, the bottom of described vertical channel is communicated with horizontal channel, described vertical channel is identical with area with the shape of cross section of horizontal channel, the relative both sides of described vertical channel are respectively equipped with an extruding pallet runners, extruding supporting plate is installed in described pallet runners.
Further, be respectively provided with a roller channel at the rear of extruding pallet runners, the roller in described roller channel and extruding supporting plate and blank close contact.
Further, the middle part of described horizontal channel and two ends are in " step " shape.
Further, the gap of described extruding supporting plate and gap between front mould and rear mold are at grade.
Further, described first bolt is 6, and described second bolt is 2.
Compared with prior art, apparatus of the present invention possess following advantage:
1, new device of the present invention is owing to being apply pressure to extruding supporting plate, effectively can slow down the breakage problem that strut buckling causes.
2, the present invention uses extruding supporting plate and roller structure, changes rolling friction into, effectively reduce the frictional force between die channel inwall and blank from traditional sliding friction.
3, the horizontal channel structure in the present invention adds little " step ", reduces the frictional force in extruding later stage.
4, the structure of new device of the present invention is simple, with bolts, and convenient disassembly saves test period, improves experiment work efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic three dimensional views of the channel pressings of the falling T-shape deforming moulds of the embodiment of the present invention one.
Fig. 2 is the front view of the channel pressings of the falling T-shape deforming moulds of the embodiment of the present invention one.
Fig. 3 is the top view of the channel pressings of the falling T-shape deforming moulds of the embodiment of the present invention one.
Fig. 4 is the left view of the channel pressings of the falling T-shape deforming moulds of the embodiment of the present invention one.
Fig. 5 is the schematic three dimensional views of the channel pressings of the falling T-shape deforming moulds of the embodiment of the present invention two.
Fig. 6 is the front view of the channel pressings of the falling T-shape deforming moulds of the embodiment of the present invention two.
Fig. 7 is the top view of the channel pressings of the falling T-shape deforming moulds of the embodiment of the present invention two.
Fig. 8 is the left view of the channel pressings of the falling T-shape deforming moulds of the embodiment of the present invention two.
Fig. 9 is the structural representation of roller channel in the embodiment of the present invention one.
Description of reference numerals is as follows:
1-extrudes supporting plate, and 2-extrudes pallet runners, 3-front mould, 4-rear mold, 5-first bolt, 6-second bolt, 7-roller channel.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
Embodiment 1
Fig. 1 ~ Fig. 4 is the structural representation of the channel pressings of the falling T-shape deforming moulds of the present embodiment.Can output from figure, this device comprises extruding supporting plate 1, extruding pallet runners 2, and front mould 3 and rear mold 4, described front mould 3 is fixed in rear mold 4 by six the first bolt 5 compact siro spinning technology, and described rear mold 4 is fixed on horizontal operation table top by two the second bolts 6.Vertical channel is respectively equipped with in the centre of the opposite face of described front mould 3 and rear mold 4, the upper end of described vertical channel is communicated with mold exterior, the bottom of described vertical channel is communicated with horizontal channel, front mould 3 and rear mold 4 entire combination form a complete passage of falling T-shape, and described vertical channel is identical with area with the shape of cross section of horizontal channel.Be respectively equipped with an extruding pallet runners 2 in the relative both sides of described vertical channel, be provided with extruding supporting plate 1 in described pallet runners 2, extruding supporting plate 1 can be free to slide by extruding pallet runners 2.The gap of extruding supporting plate 1 and the gap between front mould 3 and rear mold 4 at grade, make extruding supporting plate 1, pressure head and vertical channel keep on the same line like this, thus reduce the frictional force in motion process.Narrower in the middle part of described horizontal channel, two ends are wider, form " step " shape, reduce further the blank frictional force that receives of phase after extrusion.
When extruding beginning, blank is put into extruding supporting plate 1, blank only has two sides to be directly contact with extruding supporting plate 1.Extruding supporting plate 1 is pressed in vertical channel by extruder pressure head.Owing to being apply pressure to extruding supporting plate, the breakage problem that strut buckling causes effectively can be slowed down.Extruding supporting plate 1 moves downward with the speed of setting along extruding pallet runners 2 with blank, when blank reaches the bottom of vertical channel, under the effect of squeeze pressure, the footloose two sides of blank is along horizontal channel extensional, until extrusion process terminates, blank after distortion is positioned at horizontal channel, and the size of blank is identical with before extruding with area of section.Now, dismantle the first bolt 5, upwards pull-out extruding supporting plate 1, for extruding next time is prepared, dismantle front mould 3 and rear mold 4, take out extruding sample.Carry out second time when extruding, reconnect front mould 3 and rear mold 4 by the first bolt 5, repeat above-mentioned steps and extrude.
Embodiment 2
Fig. 5 ~ Fig. 8 is the structural representation of the channel pressings of the falling T-shape deforming moulds of the present embodiment.As different from Example 1, be also respectively provided with a roller channel 7 at the rear of extruding pallet runners 2, as shown in Figure 9, the roller in described roller channel 7 and extruding supporting plate and blank close contact.
When extruding beginning, blank is put into extruding supporting plate 1, blank only has two sides to be directly contact with extruding supporting plate 1.Extruding supporting plate 1 is pressed in vertical channel by extruder pressure head.Owing to being apply pressure to extruding supporting plate, the breakage problem that strut buckling causes effectively can be slowed down.Extruding supporting plate 1 moves downward with the speed of setting with the roller of blank in extruding pallet runners 2 in roller channel 7, changing traditional sliding friction into rolling friction by increasing roller, effectively reducing the frictional force between die channel inwall and blank.
When blank reaches the bottom of vertical channel, under the effect of squeeze pressure, the footloose two sides of blank along horizontal channel extensional, until extrusion process terminates, blank after distortion is positioned at horizontal channel, and the size of blank is identical with before extruding with area of section.Now, dismantle the first bolt 5, upwards pull-out extruding supporting plate 1, for extruding next time is prepared, dismantle front mould 3 and rear mold 4, take out extruding sample.Carry out second time when extruding, reconnect front mould 3 and rear mold 4 by the first bolt 5, repeat above-mentioned steps and extrude.
Described embodiment is preferred embodiment of the present invention; but the present invention is not limited to above-mentioned embodiment; when not deviating from flesh and blood of the present invention, any apparent improvement that those skilled in the art can make, replacement or modification all belong to protection scope of the present invention.
Claims (5)
1. the channel pressings of falling a T-shape deforming moulds, is characterized in that:
Comprise extruding supporting plate (1), extruding pallet runners (2), front mould (3) and rear mold (4), described front mould (3) is fixed in rear mold (4) by the first bolt (5), described rear mold (4) is fixed on horizontal operation table top by the second bolt (6), vertical channel is respectively equipped with at described front mould (3) and rear mold (4) opposite face, the upper end of described vertical channel is communicated with mold exterior, the bottom of described vertical channel is communicated with horizontal channel, described vertical channel is identical with area with the shape of cross section of horizontal channel, the relative both sides of described vertical channel are respectively equipped with an extruding pallet runners (2), extruding supporting plate (1) is installed in described pallet runners (2).
2. the channel pressings of falling T-shape deforming moulds according to claim 1, is characterized in that:
A roller channel (7) is respectively provided with, the roller in described roller channel and extruding supporting plate (1) and blank close contact at the rear of described extruding pallet runners (2).
3. the channel pressings of falling T-shape deforming moulds according to claim 1, is characterized in that:
The middle part width of described horizontal channel is less than two ends, in " step " shape.
4. the channel pressings of falling T-shape deforming moulds according to claim 1, is characterized in that:
The gap of described extruding supporting plate (2) and the gap between front mould (3) and rear mold (4) are at grade.
5. the channel pressings of falling T-shape deforming moulds according to claim 1, is characterized in that:
Described first bolt (5) is 6, and described second bolt (6) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614363.4A CN104492843B (en) | 2014-11-04 | A kind of inverted T shape channel pressings deforming moulds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614363.4A CN104492843B (en) | 2014-11-04 | A kind of inverted T shape channel pressings deforming moulds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104492843A true CN104492843A (en) | 2015-04-08 |
| CN104492843B CN104492843B (en) | 2017-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105512426A (en) * | 2015-12-25 | 2016-04-20 | 常州大学 | Design method for reducing discharging quantity of spider cold forging blank |
| CN109821915A (en) * | 2019-03-20 | 2019-05-31 | 福建省闽发铝业股份有限公司 | A kind of ultra-thin aluminum alloy profile extrusion technique |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116879A (en) * | 2007-09-11 | 2008-02-06 | 华南理工大学 | Equal channels extrusion device |
| CN201249212Y (en) * | 2008-09-08 | 2009-06-03 | 华南理工大学 | T-shaped channel squeezer |
| CN101797595A (en) * | 2010-03-30 | 2010-08-11 | 中国航空工业集团公司北京航空材料研究院 | Convex and concave die cavity matching structure of multipath equal-channel extrusion device |
| CN201543670U (en) * | 2009-11-27 | 2010-08-11 | 昆明理工大学 | Inverted-T shaped extrusion die for preparing ultra-fine grain material |
| KR101270985B1 (en) * | 2013-03-07 | 2013-06-04 | 한국기계연구원 | A low friction type dies for equal channel angular pressing and method for improvement of material property using of it |
| CN203044686U (en) * | 2013-01-30 | 2013-07-10 | 深圳迅能精密技术有限公司 | Stamping die with idler wheels and sliding blocks |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116879A (en) * | 2007-09-11 | 2008-02-06 | 华南理工大学 | Equal channels extrusion device |
| CN201249212Y (en) * | 2008-09-08 | 2009-06-03 | 华南理工大学 | T-shaped channel squeezer |
| CN201543670U (en) * | 2009-11-27 | 2010-08-11 | 昆明理工大学 | Inverted-T shaped extrusion die for preparing ultra-fine grain material |
| CN101797595A (en) * | 2010-03-30 | 2010-08-11 | 中国航空工业集团公司北京航空材料研究院 | Convex and concave die cavity matching structure of multipath equal-channel extrusion device |
| CN203044686U (en) * | 2013-01-30 | 2013-07-10 | 深圳迅能精密技术有限公司 | Stamping die with idler wheels and sliding blocks |
| KR101270985B1 (en) * | 2013-03-07 | 2013-06-04 | 한국기계연구원 | A low friction type dies for equal channel angular pressing and method for improvement of material property using of it |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105512426A (en) * | 2015-12-25 | 2016-04-20 | 常州大学 | Design method for reducing discharging quantity of spider cold forging blank |
| CN105512426B (en) * | 2015-12-25 | 2018-08-28 | 常州大学 | A kind of design method reducing spider cold-forging forming blank discharge quantity |
| CN109821915A (en) * | 2019-03-20 | 2019-05-31 | 福建省闽发铝业股份有限公司 | A kind of ultra-thin aluminum alloy profile extrusion technique |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20231206 Address after: 214215 Nanxin East Road, HeQiao Town, Yixing City, Wuxi City, Jiangsu Province Patentee after: LINGZHI ENVIRONMENTAL PROTECTION Co.,Ltd. Address before: 213164 No. 1, middle Lake Road, Wujin District, Changzhou, Jiangsu Patentee before: CHANGZHOU University |
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| TR01 | Transfer of patent right |