CN107185987A - A kind of flat extruding cylinder sheet material Extrusion Die Design method - Google Patents
A kind of flat extruding cylinder sheet material Extrusion Die Design method Download PDFInfo
- Publication number
- CN107185987A CN107185987A CN201710344641.2A CN201710344641A CN107185987A CN 107185987 A CN107185987 A CN 107185987A CN 201710344641 A CN201710344641 A CN 201710344641A CN 107185987 A CN107185987 A CN 107185987A
- Authority
- CN
- China
- Prior art keywords
- mrow
- mfrac
- mover
- deformable cavity
- msub
- 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.)
- Granted
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 83
- 239000000463 material Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000000205 computational method Methods 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 235000012438 extruded product Nutrition 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 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
The invention discloses a kind of flat extruding cylinder sheet material Extrusion Die Design method, extrusion die includes die-cushion, die-cushion end face is installed with section bar mould, the other end of section bar mould is installed with big head mould, big head mould center offers the deformable cavity that section is set to elliptical shape, deformable cavity is provided with entrance and exit, the section transverse b of deformable cavity keeps constant, deformable cavity section ellipse short shaft a is gradually reduced from the inlet to the outlet, big head mould sets the end face of outlet to be fixedly mounted on section bar mould, design method includes the computational methods to deformable cavity section ellipse short shaft a change curves.The extrusion die that the present invention is designed is equi-strain rate mould, is used in combination with flat extruding cylinder so that blank flows through die working length with equi-strain rate, it is ensured that the quality of difficult-to-deformation material extruded product.
Description
Technical field
The invention belongs to sheet material Extrusion Die Design method and technology field, it is related to a kind of flat extruding cylinder sheet material extrusion die
Design method.
Background technology
Particles reiforced metal-base composition because of its high specific strength, endurance and the excellent mechanical performance such as wear-resistant, into
For Recent study focus.Reinforcement in usual particles reiforced metal-base composition has high intensity and high rigidity, than
Matrix material, the plastic deformation ability of metal-base composites is very poor, and elongation percentage at room temperature is generally lower than 10% so that two
Secondary plastic working turns into the key issue for hindering it further to develop.The preparation method of existing particle enhanced aluminum-based composite material
Being only suitable for of having prepares fritter product, and the complicated cost of preparation technology when preparing large scale product having is higher, so as to limit
Application.And under extrusion process, three compressive stress states of blank, the plastic deformation bigger than rolling, forging and stamping can be obtained.It is multiple
Condensation material is expected to realize extrusion ratio 10-20 large deformation.Higher requirement, flat extruding cylinder extruding are also proposed to extruder simultaneously
It is the major way of large-scale wide plate shaping, compared with round container, flat extruding cylinder inner chamber is with wallboard section bar because of geometric similarity
Property, evenly, product structure property is more preferable for metal flow, high yield rate.The size of strain rate directly affects extruded product
In the quality of mechanical property, extrusion process used for forming, it is being axially constant to keep blank strain rate, is conducive to improving particle enhancing
Extrudability, improvement extruded product surface quality and the material combination property of metal-base composites.Existing flat cylinder extruding plate
The extruded product that the extrusion die that material Extrusion Die Design method is designed is squeezed out is of poor quality.
The content of the invention
It is an object of the invention to provide a kind of flat extruding cylinder sheet material Extrusion Die Design method, it the judgement of speed change such as can design
The extrusion die of rate, its extrusion forming effect is good.
The technical solution adopted in the present invention, which is that a kind of flat cylinder is extruded, uses sheet material Extrusion Die Design method, extrusion die
Including die-cushion, die-cushion end face is installed with section bar mould, and the other end of section bar mould is installed with big head mould, big head mould
The heart offers the deformable cavity that section is set to elliptical shape, and deformable cavity is provided with entrance and exit, and the section ellipse of deformable cavity is long
Axle b keeps constant, and deformable cavity section ellipse short shaft a is gradually reduced from the inlet to the outlet, and big head mould sets the end face of outlet to consolidate
Dingan County is on section bar mould, and design method includes the computational methods to deformable cavity section ellipse short shaft a change curves, specific steps
For：
Step 1：Calculate time of the material in deformable cavity needed for displacement dz：It is set in extrusion process, keeps squeezing
Press speed and strain rate it is constant, then time of the material in deformable cavity needed for displacement dz be：
Wherein, v is extrusion speed of the material at z, and z is distance of the material according to deformable cavity entrance；
Step 2, equivalent strain rate of the material at z is calculated：Cross-sectional area of the deformable cavity at z is A=π ab, wherein,
A is the oval short axle in cross section, and b is the oval major axis in cross section, then equivalent strain rate of the material at z is：
Step 3, strain rate of the material at z is calculated：By (1) and (2), formula show that material undergoes in displacement dz
Equivalent strain rate is：
Remember v0And a0Material respectively in the oval minor axis length of the speed and deformable cavity entrance section of porch, then material
Strain rate at z is：
Step 4, strain rate of the material in deformable cavity porch is calculated：Because strain rate is constant, then material is in deformation
The strain rate of chamber porch is：
Step 5, derive that deformable cavity section ellipse short shaft a change curves are by formula (5)：(6)；
Wherein, the extrusion speed of deformable cavity porchλ is extrusion ratio, λ=a in formula0/af, afFor deformable cavity
The oval minor axis length in outlet, by v0Bring formula (6) into and obtain deformable cavity section ellipse short shaft a change curve and be：
Wherein, L is the distance of the length of big head mould, i.e. deformable cavity entrance to outlet.
Extrusion ratio λ=4~10 in step 5.
The oval major axis b in deformable cavity section be more than crowded strip width 103%.
2a0The small 5mm-40mm of hole width, 2a in flat extruding cylinder more supporting than institutefSheet metal thickness big 2mm-40mm more crowded than institute.
The small 5mm-20mm of hole length in 2b flat extruding cylinders more supporting than institute.
The length L of big head mould is 60mm~300mm.
The extrusion speed of step 1 is 0.2mm/s~2mm/s.
The strain rate of step 1 is 0.005~5s-1。
The beneficial effects of the invention are as follows a kind of flat cylinder extruding sheet material Extrusion Die Design method of the invention is designed
Extrusion die be equi-strain rate extrusion die, itself and flat extruding cylinder are combined, and extruding rate is constant in extrusion process and blank
Flowing is more uniform, is conducive to improving extruding finished product Forming Quality.And the equi-strain rate extrusion die of the present invention can substantially subtract
Small extruding dead band, i.e., be located at recipient and reduce with the region that extrusion die intersection metal is not plastically deformed in extrusion process,
The negative effect that reduction extruding dead band is produced during extrusion forming.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the extrusion die of flat cylinder extruding sheet material Extrusion Die Design method of the present invention；
Fig. 2 is a kind of structure of the big head mould of the extrusion die of flat cylinder extruding sheet material Extrusion Die Design method of the present invention
Schematic diagram；
Fig. 3 is a kind of main view of the big head mould of the extrusion die of flat cylinder extruding sheet material Extrusion Die Design method of the present invention
Figure；
Fig. 4 is a kind of vertical view of the big head mould of the extrusion die of flat cylinder extruding sheet material Extrusion Die Design method of the present invention
Figure；
Fig. 5 is a kind of computation model figure of flat cylinder extruding sheet material Extrusion Die Design method of the present invention；
Fig. 6 is a kind of extrusion die of flat cylinder extruding sheet material Extrusion Die Design method of the present invention and the peace of flat extruding cylinder
Fill front view；
Fig. 7 is a kind of extrusion die of flat cylinder extruding sheet material Extrusion Die Design method of the present invention and the peace of flat extruding cylinder
Fill top view；
Fig. 8 is a kind of use state figure of the extrusion die of flat cylinder extruding sheet material Extrusion Die Design method of the present invention；
Fig. 9 is the use state figure of existing traditional moulds；
Figure 10 is a kind of implementation of the extrusion die of flat cylinder extruding sheet material Extrusion Die Design method of invention
Illustration.
In figure, 1. big head moulds, 2. section bar moulds, 3. die-cushions, 4. recipients, 5. dead bands, 6. existing molds；
1-1. deformable cavities, 1-2. entrances, 1-3. outlets；
2-1. second inner chambers, the inner chambers of 3-1. the 3rd.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
A kind of flat cylinder extruding sheet material Extrusion Die Design method of the present invention, wherein, as shown in figure 1, extrusion die bag
Die-cushion 3 is included, the end face of die-cushion 3 is installed with section bar mould 2, and the other end of section bar mould 2 is installed with big head mould 1, such as schemed
The big centers of head mould 1 of 2-4 offer the deformable cavity 1-1 that section is set to elliptical shape, and deformable cavity 1-1 is provided with entrance 1-2 and gone out
Mouth 1-3, deformable cavity 1-1 section transverse b keep constant, and deformable cavity 1-1 sections ellipse short shaft a is from entrance 1-2 to outlet
1-3 is gradually reduced, and big head mould 1 sets outlet 1-3 end face to be fixedly mounted on section bar mould 2, and design method is included to deformation
The computational methods of chamber 1-1 sections ellipse short shaft a change curves, are concretely comprised the following steps：
Step 1：Calculate time of the material in deformable cavity 1-1 needed for displacement dz：It is set in extrusion process, keeps
Extrusion speed and strain rate are constant, as shown in figure 5, then time of the material in deformable cavity 1-1 needed for displacement dz is：
Wherein, v is extrusion speed of the material at z, and z is distance of the material according to deformable cavity entrance；
Step 2, equivalent strain rate of the material at z is calculated：Cross-sectional areas of the deformable cavity 1-1 at z is A=π ab, its
In, a is the oval short axle in cross section, and b is the oval major axis in cross section, then equivalent strain rate of the material at z is：
Step 3, strain rate of the material at z is calculated：By (1) and (2), formula show that material undergoes in displacement dz
Equivalent strain rate is：
Remember v0And a0Material respectively in the oval minor axis length of the speed and deformable cavity entrance section of porch, then material
Strain rate at z is：
Step 4, strain rate of the material in deformable cavity porch is calculated：Because strain rate is constant, then material is in deformation
The strain rate of chamber porch is：
Step 5, derive that deformable cavity 1-1 sections ellipse short shaft a change curves are by formula (5)：
Wherein, the extrusion speed of deformable cavity porchλ is extrusion ratio, λ=a in formula0/af, afFor deformable cavity
The oval minor axis length in outlet, by v0Bring formula (6) into and obtain deformable cavity section ellipse short shaft a change curve and be：
Wherein, L is the distance of the length of big head mould, i.e. deformable cavity entrance to outlet.
Extrusion ratio λ=4~10 in step 5.
The oval major axis b in deformable cavity (1-1) section be more than crowded strip width 103%.
As shown in fig. 6,2a0The small 5mm-40mm of hole width A, 2a in flat extruding cylinder more supporting than institutefSheet metal thickness more crowded than institute is big
2mm-40mm。
As shown in fig. 7, the small 5mm-20mm of hole length B in 2b flat extruding cylinders more supporting than institute.The length L of big head mould for 60mm~
300mm。
The extrusion speed of step 1 is 0.2mm/s~2mm/s.
The strain rate of step 1 is 0.005~5s-1。
Center offers second inner chamber 2-1 and the 3rd inner chamber 3-1, second inner chamber respectively on the section bar mould and die-cushion of the present invention
2-1, the 3rd inner chamber 3-1 and deformable cavity 1-1 are interconnected and central axis is overlapped.In the second inner chamber 2-1 and the 3rd of the present invention
Chamber 3-1 cross sectional shape is rectangle, consistent with required sheet material section.
The extrusion speed and strain rate of the present invention is selected according to material.
As Figure 8-9, existing mold 6 combines the extrusion die 1 and flat extruding cylinder 4 that flat extruding cylinder 4 is designed with the present invention
Extruding dead band 5 can be obviously reduced in the contrast being used together, the extrusion die 1 that the present invention is designed when flat extruding cylinder 4 is used together,
The region not being plastically deformed with extrusion die intersection metal positioned at recipient i.e. in extrusion process is reduced, and reduction extruding is dead
The negative effect that area is produced during extrusion forming.
Embodiment
Now extrude B4C/Al composites.
By taking 5MN extruders as an example, using forward extrusion mode, as shown in Figure 10, flat extruding cylinder inner hole section is ellipse,
Hole width A is respectively 120mm, 50mm in interior hole length B and cylinder, and the entrance section of equi-strain rate extrusion die deformable cavity 1 is
Ellipse, its 2b=100mm, 2a0=36mm, the outlet of equi-strain rate extrusion die deformable cavity 1 is ellipse, its 2b
=100mm, 2af=6mm, then, and λ=a0/af=6, wherein the length L of big head mould is 62.5mm, thenExtruding
B4C/Al composites, are 4 × 10s in strain rate-2, extrusion speed v=0.5mm/s, extrusion temperature is 400 DEG C, the extruding
Mould ensure that equi-strain rate is extruded.
Claims (8)
1. a kind of flat cylinder extruding sheet material Extrusion Die Design method, it is characterised in that the extrusion die includes die-cushion (3),
Die-cushion (3) end face is installed with section bar mould (2), and the other end of the section bar mould (2) is installed with big head mould
(1), big head mould (1) center offers the deformable cavity (1-1) that section is set to elliptical shape, and the deformable cavity (1-1) sets
Entrance (1-2) and outlet (1-3) are equipped with, the section transverse b of the deformable cavity (1-1) keeps constant, the deformable cavity (1-
1) ellipse short shaft a in section is gradually reduced from entrance (1-2) to outlet (1-3), and the big head mould (1) sets the one of outlet (1-3)
End face is fixedly mounted on section bar mould (2), and the design method is included to deformable cavity (1-1) section ellipse short shaft a change curves
Computational methods, concretely comprise the following steps：
Step 1：Calculate time of the material in deformable cavity (1-1) needed for displacement dz：It is set in extrusion process, keeps squeezing
Press speed and strain rate it is constant, then time of the material in deformable cavity (1-1) needed for displacement dz be：
<mrow>
<mi>d</mi>
<mi>t</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mi>d</mi>
<mi>z</mi>
</mrow>
<mi>v</mi>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
<mo>,</mo>
</mrow>
Wherein, v is extrusion speed of the material at z, and z is distance of the material according to deformable cavity entrance；
Step 2, equivalent strain rate of the material at z is calculated：Cross-sectional area of the deformable cavity (1-1) at z is A=π ab, its
In, a is the oval short axle in cross section, and b is the oval major axis in cross section, then equivalent strain rate of the material at z is：
<mrow>
<mi>d</mi>
<mover>
<mi>&epsiv;</mi>
<mo>&OverBar;</mo>
</mover>
<mo>=</mo>
<mo>-</mo>
<mfrac>
<mrow>
<mi>d</mi>
<mi>A</mi>
</mrow>
<mi>A</mi>
</mfrac>
<mo>=</mo>
<mo>-</mo>
<mn>2</mn>
<mfrac>
<mrow>
<mi>d</mi>
<mi>a</mi>
</mrow>
<mi>a</mi>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>2</mn>
<mo>)</mo>
</mrow>
<mo>;</mo>
</mrow>
Step 3, strain rate of the material at z is calculated：By (1) and (2), formula is drawn, material displacement dz undergo it is equivalent
Strain rate is：
<mrow>
<mover>
<mover>
<mi>&epsiv;</mi>
<mo>&OverBar;</mo>
</mover>
<mo>&CenterDot;</mo>
</mover>
<mo>=</mo>
<mfrac>
<mrow>
<mi>d</mi>
<mover>
<mi>&epsiv;</mi>
<mo>&OverBar;</mo>
</mover>
</mrow>
<mrow>
<mi>d</mi>
<mi>t</mi>
</mrow>
</mfrac>
<mo>=</mo>
<mo>-</mo>
<mfrac>
<mi>v</mi>
<mi>a</mi>
</mfrac>
<mfrac>
<mrow>
<mi>d</mi>
<mi>a</mi>
</mrow>
<mrow>
<mi>d</mi>
<mi>z</mi>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>3</mn>
<mo>)</mo>
</mrow>
<mo>,</mo>
</mrow>
Remember v0And a0It is minor axis length of the material in speed and deformable cavity the entrance section ellipse of porch respectively, then material is at z
Strain rate be：
<mrow>
<mover>
<mover>
<mi>&epsiv;</mi>
<mo>&OverBar;</mo>
</mover>
<mo>&CenterDot;</mo>
</mover>
<mo>=</mo>
<mfrac>
<mrow>
<mi>d</mi>
<mover>
<mi>&epsiv;</mi>
<mo>&OverBar;</mo>
</mover>
</mrow>
<mrow>
<mi>d</mi>
<mi>t</mi>
</mrow>
</mfrac>
<mo>=</mo>
<mo>-</mo>
<mfrac>
<mrow>
<msub>
<mi>a</mi>
<mn>0</mn>
</msub>
<msub>
<mi>v</mi>
<mn>0</mn>
</msub>
</mrow>
<msup>
<mi>a</mi>
<mn>2</mn>
</msup>
</mfrac>
<mfrac>
<mrow>
<mi>d</mi>
<mi>a</mi>
</mrow>
<mrow>
<mi>d</mi>
<mi>z</mi>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>4</mn>
<mo>)</mo>
</mrow>
<mo>;</mo>
</mrow>
Step 4, strain rate of the material in deformable cavity porch is calculated：Because strain rate is constant, then material enters in deformable cavity
Mouthful at strain rate be：
<mrow>
<msub>
<mover>
<mover>
<mi>&epsiv;</mi>
<mo>&OverBar;</mo>
</mover>
<mo>&CenterDot;</mo>
</mover>
<mn>0</mn>
</msub>
<mo>=</mo>
<mover>
<mover>
<mi>&epsiv;</mi>
<mo>&OverBar;</mo>
</mover>
<mo>&CenterDot;</mo>
</mover>
<mo>=</mo>
<mfrac>
<mrow>
<mi>d</mi>
<mover>
<mi>&epsiv;</mi>
<mo>&OverBar;</mo>
</mover>
</mrow>
<mrow>
<mi>d</mi>
<mi>t</mi>
</mrow>
</mfrac>
<mo>=</mo>
<mo>-</mo>
<mfrac>
<mrow>
<msub>
<mi>a</mi>
<mn>0</mn>
</msub>
<msub>
<mi>v</mi>
<mn>0</mn>
</msub>
</mrow>
<msup>
<mi>a</mi>
<mn>2</mn>
</msup>
</mfrac>
<mfrac>
<mrow>
<mi>d</mi>
<mi>a</mi>
</mrow>
<mrow>
<mi>d</mi>
<mi>z</mi>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>5</mn>
<mo>)</mo>
</mrow>
<mo>,</mo>
</mrow>
Step 5, derive that deformable cavity (1-1) section ellipse short shaft a change curves are by formula (5)：
<mrow>
<mfrac>
<mn>1</mn>
<mrow>
<mi>a</mi>
<mrow>
<mo>(</mo>
<mi>z</mi>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<msub>
<mi>a</mi>
<mn>0</mn>
</msub>
</mfrac>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>+</mo>
<mfrac>
<msub>
<mover>
<mover>
<mi>&epsiv;</mi>
<mo>&OverBar;</mo>
</mover>
<mo>&CenterDot;</mo>
</mover>
<mn>0</mn>
</msub>
<msub>
<mi>v</mi>
<mn>0</mn>
</msub>
</mfrac>
<mi>z</mi>
<mo>)</mo>
</mrow>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>6</mn>
<mo>)</mo>
</mrow>
<mo>;</mo>
</mrow>
Wherein, the extrusion speed of deformable cavity porchλ is extrusion ratio, λ=a in formula0/af, afCut for deformable cavity outlet
The oval minor axis length in face, by v0Bring formula (6) into and obtain deformable cavity section ellipse short shaft a change curve and be：
<mrow>
<mi>a</mi>
<mrow>
<mo>(</mo>
<mi>z</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>a</mi>
<mn>0</mn>
</msub>
<mi>L</mi>
</mrow>
<mrow>
<mi>L</mi>
<mo>+</mo>
<mi>z</mi>
<mrow>
<mo>(</mo>
<mi>&lambda;</mi>
<mo>-</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>7</mn>
<mo>)</mo>
</mrow>
<mo>,</mo>
</mrow>
Wherein, L is the distance of the length of big head mould, i.e. deformable cavity entrance to outlet.
2. a kind of flat cylinder extruding sheet material Extrusion Die Design method according to claim 1, it is characterised in that step 5
Described in extrusion ratio λ=4~10.
3. a kind of flat cylinder extruding sheet material Extrusion Die Design method according to claim 1, it is characterised in that the change
The oval major axis b in shape chamber (1-1) section be more than crowded strip width 103%.
4. a kind of flat cylinder extruding sheet material Extrusion Die Design method according to claim 1, it is characterised in that the 2a0
The small 5mm-40mm of hole width, 2a in flat extruding cylinder more supporting than institutefSheet metal thickness big 2mm-40mm more crowded than institute.
5. a kind of flat cylinder extruding sheet material Extrusion Die Design method according to claim 1, it is characterised in that the 2b
The small 5mm-20mm of hole length in flat extruding cylinder more supporting than institute.
6. a kind of flat cylinder extruding sheet material Extrusion Die Design method according to claim 1, it is characterised in that described big
The length L of head mould is 60mm~300mm.
7. a kind of flat cylinder extruding sheet material Extrusion Die Design method according to claim 1, it is characterised in that step 1
Described extrusion speed is 0.2mm/s~2mm/s.
8. a kind of flat cylinder extruding sheet material Extrusion Die Design method according to claim 1, it is characterised in that step 1
Described strain rate is 0.005~5s-1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710344641.2A CN107185987B (en) | 2017-05-16 | 2017-05-16 | A kind of flat extruding cylinder plank Extrusion Die Design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710344641.2A CN107185987B (en) | 2017-05-16 | 2017-05-16 | A kind of flat extruding cylinder plank Extrusion Die Design method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107185987A true CN107185987A (en) | 2017-09-22 |
| CN107185987B CN107185987B (en) | 2018-09-11 |
Family
ID=59873749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710344641.2A Expired - Fee Related CN107185987B (en) | 2017-05-16 | 2017-05-16 | A kind of flat extruding cylinder plank Extrusion Die Design method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107185987B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111274657A (en) * | 2020-01-20 | 2020-06-12 | 福建工程学院 | Design method of working belt of profile extrusion die |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888108A (en) * | 2006-07-26 | 2007-01-03 | 哈尔滨工业大学 | Cariaceous high-damping deformation magnesium alloy and its prepn process |
| JP2012006052A (en) * | 2010-06-25 | 2012-01-12 | Showa Denko Kk | Extrusion die |
| US20150298189A1 (en) * | 2012-06-13 | 2015-10-22 | Korea Institute Of Industrial Technology | Extrusion die using shock-absorbing pad and method for manufacturing extrusion |
| CN106140852A (en) * | 2016-06-29 | 2016-11-23 | 重庆理工大学 | A kind of high-strength tenacity carefully brilliant light-alloy tubing prepare mould and preparation method thereof |
-
2017
- 2017-05-16 CN CN201710344641.2A patent/CN107185987B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888108A (en) * | 2006-07-26 | 2007-01-03 | 哈尔滨工业大学 | Cariaceous high-damping deformation magnesium alloy and its prepn process |
| JP2012006052A (en) * | 2010-06-25 | 2012-01-12 | Showa Denko Kk | Extrusion die |
| US20150298189A1 (en) * | 2012-06-13 | 2015-10-22 | Korea Institute Of Industrial Technology | Extrusion die using shock-absorbing pad and method for manufacturing extrusion |
| CN106140852A (en) * | 2016-06-29 | 2016-11-23 | 重庆理工大学 | A kind of high-strength tenacity carefully brilliant light-alloy tubing prepare mould and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111274657A (en) * | 2020-01-20 | 2020-06-12 | 福建工程学院 | Design method of working belt of profile extrusion die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107185987B (en) | 2018-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104438415B (en) | The multidirectional compound multichannel screw extrusion mould of metal stock | |
| CN105170678A (en) | Aluminum profile extruding machine | |
| CN204108005U (en) | A kind of amorphous alloy pipe extrusion molding apparatus | |
| CN201143522Y (en) | Hot-extrusion mold | |
| CN106493282A (en) | Ti1023 titanium alloy tubular journal forging near isothermal forging manufacturing process | |
| CN107081342B (en) | A kind of plank extruding method of low temperature difficult-to-deformation material | |
| CN106077118B (en) | A kind of continuous processing device and processing method of ultrafine grain metal section bar | |
| CN206716747U (en) | The passages such as one kind continuously reverse extrusion die | |
| CN107185987A (en) | A kind of flat extruding cylinder sheet material Extrusion Die Design method | |
| CN2750919Y (en) | S-shaped reciprocating compression die set with equal channel outer corner for preparing superfine crystal material | |
| CN111495998A (en) | Metal and metal matrix composite forming device | |
| CN205463671U (en) | Reverse double acting extruder rigidity reinforcing means | |
| CN206824409U (en) | A kind of flat cylinder extruding extrusion die | |
| CN109604365B (en) | Asymmetric continuous large-deformation extrusion processing die for magnesium alloy | |
| CN101722204A (en) | Extrusion process for titanium alloy profile material | |
| CN208497631U (en) | A kind of mold improving PVC spool production stability | |
| CN100506415C (en) | Roller type cavity die extrusion molding method | |
| CN102430608B (en) | Equipment and process for producing arc-shaped magnesium alloy plates | |
| CN109675947A (en) | A kind of continuous soldering pressing method of the repetition of Refining Mg Alloy crystal grain | |
| CN207996898U (en) | A kind of crowded torsion Compound Machining mold that multi-direction shearing can be achieved | |
| CN213382888U (en) | Combined plastic pipe extrusion die | |
| CN204276558U (en) | Metal stock multidirectional compound multichannel screw extrusion mould | |
| CN1298451C (en) | Spiral extrusion shaping and processing apparatus | |
| CN206168958U (en) | Horizontal hydraulic extrusion reverse extrusion pressure equipment is put | |
| CN110695336A (en) | Semisolid magnesium alloy gradient extrusion combined die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 |