CN205551111U - When spherical corner inflation extrusion die of passageway - Google Patents
When spherical corner inflation extrusion die of passageway Download PDFInfo
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- CN205551111U CN205551111U CN201620364199.0U CN201620364199U CN205551111U CN 205551111 U CN205551111 U CN 205551111U CN 201620364199 U CN201620364199 U CN 201620364199U CN 205551111 U CN205551111 U CN 205551111U
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Abstract
When spherical corner inflation extrusion die of passageway has the die of a tapering body, and die inside is equipped with exit channel, expand passageway, spherical corner and access road, and during the die embedding had the tapered die sleeve that coincide, the heating jacket was equipped with in the peripheral encirclement of die sleeve, matches to be equipped with the drift above the die, and inlay in upper fixing plate at the drift top, and upper fixing plate's top is connected with the cope match -plate pattern, die bottom through the bolt fastening on the lower bolster, exit channel is connected through the end cap bolt of screw thread with the die outside, the die is vertical minute mould, and for controlling composite structure, two parts carry out the integrated positioning by the locating pin about the die to fasten through bolted connection, this when spherical corner inflation extrusion die of passageway has the dual function effect of " the spherical reposition of redundant personnel " and " inflation extrusion ", and not only grain refinement is effectual, the extrusion is efficient, has realized the mesh of " once extrudeing multiple technology, deformation in succession " moreover to make the application scope of traditional equal channel angular extrusion technology and the ability of refined crystalline strengthening effectively expanded.
Description
Technical field
This utility model relates to the extrusion technique field of Metal Forming, especially one to be had the spherical corner of passage such as one of " spherical shunting " and " expand extruding " dual function and expands extrusion die.
Background technology
Crystal grain thinning is to improve one of maximally effective approach of material combination property.In recent years, large plastometric set method is because it has strong grain refining capability and the huge modifying function of structural metallic materials Strengthening and Toughening is received great attention and the further investigation of material supply section educational circles.Equal-channel Angular Pressing is a kind of advanced technology the most representative and with the fastest developing speed in large plastometric set method.It can carry out shearing-crushing crystal grain by the severe plastic deformation of multi-pass repeatedly on the premise of not changing material section size, to accumulate materials microstructure refinement and performance raising under cryogenic conditions in bigger plastic strain, and then realization.But, grain refinement technology development and improve during, Equal-channel Angular Pressing method the most also shows some limitation.As inefficient in the extruding of: mould, corner easily occurs deforming that dead band, blank stress state be undesirable, strain is difficult to equal control, extrusion blank head warpage etc., limits the actual application of this process industry to a certain extent.
Therefore, necessary tradition equal channel angular extrusion die structure is improved, to overcome above-mentioned processing disadvantages, expand the range of application of Equal-channel Angular Pressing method and applicable object.
Summary of the invention
For the deficiency existing for existing Equal-channel Angular Pressing method and mould structure, this utility model introduces " spherical shunting " and the concept of " expanding extruding ", thering is provided a kind of mould waiting the spherical corner of passage to expand extruding, this mould extruding efficiency is high, deformation uniformity is good, blank is superior in quality.
nullThis utility model solves its technical problem and be the technical scheme is that etc. that the spherical corner of passage expands extrusion die，Including: cope match-plate pattern、Upper mould fixed plate、Drift、Heating mantle、Die sleeve、Plug bolt、Lower bolster、Die、Exit passageway、Inflation channel、Spherical corner、Die bolt、Access road、Alignment pin，Expand in extrusion die waiting spherical corner of passage，Described die is a tapering body，Its internal sequence is provided with exit passageway、Inflation channel、Spherical corner and access road，Die embeds in the die sleeve with identical tapering，The peripheral of die sleeve surrounds equipped with heating mantle，Heating mantle is die by power supply and die sleeve heats，Above die, coupling is provided with drift，Drift top is embedded in upper mould fixed plate，The top of upper mould fixed plate is connected with cope match-plate pattern，Die is fixed on lower bolster by bed bolt，One end of exit passageway is connected with the plug bolt outside die.
nullIn the drawings，Die is vertically to divide mould，For left and right fabricated structure，Die left and right two parts are combined location by alignment pin，And connect fastening by die bolt，Joint die cavity constitutes the deformation passage of whole secondary mould，Its upper entrance is provided with access road，Bottom is connected by cross section coupling at an angle to each other equal to the horizontal channel of access road and Vertical Channel，Simultaneously in die channel corner，It is provided with the diameter spherical corner more than access road diameter，The diameter inflation channel more than access road diameter it was provided with before exit passageway，Inflation channel entrance be provided with outlet tapering carry out transition coupling be connected，Thus the spherical corner of passage such as composition expands the deformation passage of extrusion die，Deformation channel die corner is 90 °，Its cross section is circular，In deformation passage except spherical corner and inflation channel diameter in addition to the size more than access road，Rest channels all has same cross-sectional shape and size with access road，So provide the most powerful shear action and hydrostatic pressure for deformation，And make blank deformation continuous、Coordinate、Stable，Improve extruding work efficiency and blank deformation quality.
Die sleeve in figure entangles die, plays pressure-bearing and position-limiting action in extrusion process, prevents extrded material or mould breakage from flying out and hurting sb.'s feelings simultaneously.After die sleeve entangles die, it is fixed on lower bolster by bed bolt.
Heating mantle in figure is sleeved on die sleeve outer wall, and both are in close contact, after switching on power, and the thermaltransmission mode conducted by contact, can require heat effectively and rapidly for whole secondary mould and be incubated according to material behavior and technological temperature.
Drift in figure is embedded in upper mould fixed plate, and upper mould fixed plate is connected with forcing press by cope match-plate pattern, and the length of drift is identical with the length of access road, the most more convenient forcing press crimp blank.
When using for the first time, blank is put in access road, it is screwed into plug bolt at outlet channel, drift is pressed down against, and blank is pressed into spherical corner, and drift lifts after being pressed down against putting in place, simultaneously, the plug bolt of outlet channel is unscrewed and takes off, putting into next blank at access road, so continuing extruding until terminating；After extruding completes, unclamping bed bolt and take lower bolster away, eject die, i.e. can unclamp the die bolt on die, pound out alignment pin simultaneously, separate die, die inner chamber is also cleared up and periodic maintenance by the convenient deformation blank taken out in deformation passage in time.
The beneficial effects of the utility model:
1, this utility model is provided with a spherical hollow space in mould corner.On the one hand, utilize the transitional function of spherical circular arc at mould exterior angle, promote bottom metal to flow to side outlet passageway, improve the mobility of bottom metal, formation metal flow dead band at exterior angle can be prevented effectively from；On the other hand, owing to the diameter of spherical hollow space is more than squeezing passage size, blank through mould corner by shearing successively, expand, the deformation of the various ways such as extruding, material strain cumulant is greatly increased, and extruding efficiency is greatly improved.
2, this utility model arranges the expansion squeezing passage of one section of variable cross-section in die horizontal passage, the deformation making this stage blank is in a mold cavity closed, utilize the reverse back pressure effect that forward extrusion at mould outlet " tube reducing " is played to increase material hydrostatic pressure in deformation process, make inside it, to reach preferable three-dimensional compressive stress state, thus reduce the deformation defect of blank and the degree of wear of mould.Meanwhile, expanding extruding and also make material plasticity detrusion the most violent, grain refining effect and extruding are in hgher efficiency.
3, designed by this utility model etc. the spherical corner of passage expand extrusion die and various deformation technique be integrated in a secondary mould, the purpose of " once extruding; kinds of processes, continuous modification " can be realized, so that the tradition scope of application of Equal Channel Angular Pressing and the ability of refined crystalline strengthening are effectively extended.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is cross-section structure principle schematic of the present utility model.
1. cope match-plate pattern in figure, 2. upper mould fixed plate, 3. drift, 4. heating mantle, 5. die sleeve, 6. plug bolt, 7. lower bolster, 8. die, 9. exit passageway, 10. inflation channel, 11. spherical corners, 12. die bolts, 13. access roades, 14. alignment pins.
Detailed description of the invention
nullExtrusion die is expanded Deng the spherical corner of passage，Including: cope match-plate pattern 1、Upper mould fixed plate 2、Drift 3、Heating mantle 4、Die sleeve 5、Plug bolt 6、Lower bolster 7、Die 8、Exit passageway 9、Inflation channel 10、Spherical corner 11、Die bolt 12、Access road 13、Alignment pin 14，Expand in extrusion die waiting spherical corner of passage，Described die 8 is a tapering body，Its internal sequence is provided with exit passageway 9、Inflation channel 10、Spherical corner 11 and access road 13，Die 8 embeds in the die sleeve 5 with identical tapering，The peripheral of die sleeve 5 surrounds equipped with heating mantle 4，Heating mantle 4 is die 8 by power supply and die sleeve 5 heats，Above die 8, coupling is provided with drift 3，Drift 3 top is embedded in upper mould fixed plate 2，The top of upper mould fixed plate 2 is connected with cope match-plate pattern 1，Die 8 is fixed on lower bolster 7 by bed bolt，One end of exit passageway 9 is connected with the plug bolt 6 outside die 8.
nullIn the drawings，Die 8 is vertically to divide mould，For left and right fabricated structure，Die about 8 two parts are combined location by alignment pin 14，And connect fastening by die bolt 12，Joint die cavity constitutes the deformation passage of whole secondary mould，Its upper entrance is provided with access road 13，Bottom is connected by cross section coupling at an angle to each other equal to the horizontal channel of access road 13 and Vertical Channel，Simultaneously in die channel corner，It is provided with the diameter spherical corner 11 more than access road diameter，The diameter inflation channel 10 more than access road diameter it was provided with before exit passageway 9，Inflation channel 10 entrance be provided with outlet tapering carry out transition coupling be connected，Thus the spherical corner of passage such as composition expands the deformation passage of extrusion die，Deformation channel die corner is 90 °，Its cross section is circular，In deformation passage except spherical corner 11 and inflation channel 10 diameter in addition to the size more than access road 13，Rest channels all has same cross-sectional shape and size with access road 13，So provide the most powerful shear action and hydrostatic pressure for deformation，And make blank deformation continuous、Coordinate、Stable，Improve extruding work efficiency and blank deformation quality.
Die sleeve 5 in figure entangles die 8, plays pressure-bearing and position-limiting action in extrusion process, prevents extrded material or mould breakage from flying out and hurting sb.'s feelings simultaneously.After die sleeve 5 entangles die 8, it is fixed on lower bolster 7 by bed bolt.
Heating mantle 4 in figure is sleeved on die sleeve 5 outer wall, and both are in close contact, after switching on power, and the thermaltransmission mode conducted by contact, can require heat effectively and rapidly for whole secondary mould and be incubated according to material behavior and technological temperature.
Drift 3 in figure is embedded in upper mould fixed plate 2, and upper mould fixed plate 2 is connected with forcing press by cope match-plate pattern 1, and the length of drift 3 is identical with the length of access road 13, the most more convenient forcing press crimp blank.
When using for the first time, blank is put in access road 13, plug bolt 6 it is screwed at exit passageway 9, drift 3 is pressed down against, and blank is pressed into spherical corner 11, and drift 3 lifts after being pressed down against putting in place, simultaneously, plug bolt 6 at exit passageway 9 is unscrewed and takes off, putting into next blank at access road 13, so continuing extruding until terminating；After extruding completes, unclamp bed bolt and take lower bolster 7 away, eject die 8, i.e. can unclamp the die bolt 12 on die 8, pounding out alignment pin 14 simultaneously, separate die 8, die 8 inner chamber is also cleared up and periodic maintenance by the convenient deformation blank taken out in deformation passage in time.
Claims (4)
- null1. spherical corner such as passage such as grade expands extrusion die，Including: cope match-plate pattern (1)、Upper mould fixed plate (2)、Drift (3)、Heating mantle (4)、Die sleeve (5)、Plug bolt (6)、Lower bolster (7)、Die (8)、Exit passageway (9)、Inflation channel (10)、Spherical corner (11)、Bolt (12)、Access road (13)、Alignment pin (14)，There is the die (8) of a tapering body Deng passage spherical corner expansion extrusion die，It is characterized in that: die (8) is internal is provided with exit passageway (9)、Inflation channel (10)、Spherical corner (11) and access road (13)，Die (8) embeds in the die sleeve (5) with identical tapering，The peripheral of die sleeve (5) surrounds equipped with heating mantle (4)，In die (8) top, coupling is provided with drift (3)，Drift (3) top is embedded in upper mould fixed plate (2)，The top of upper mould fixed plate (2) is connected with cope match-plate pattern (1)；Die (8) bottom is bolted on lower bolster (7), and exit passageway (9) is connected by the plug bolt (6) that screw thread is outside with die (8)；Die (8) is vertically to divide mould, and for left and right fabricated structure, die (8) left and right two parts are combined location by alignment pin (14), and connect fastening by bolt (12).
- The spherical corner of passage such as grade the most according to claim 1 expands extrusion die, it is characterized in that: the porch of inflation channel (10) and exit are provided with certain taper, transition and linkage is carried out respectively with spherical corner (11) and exit passageway (9), thus the spherical corner of passage such as composition expands the deformation passage of extrusion die, deformation channel die corner is 90 °, and its cross section is circular.
- The spherical corner of passage such as grade the most according to claim 1 expands extrusion die, it is characterized in that: waiting the spherical corner of passage to expand in extrusion die in addition to spherical corner (11) and inflation channel (10) diameter are more than the size of access road (13), rest channels all has same cross-sectional shape and size with access road (13).
- The spherical corner of passage such as grade the most according to claim 1 expands extrusion die, it is characterized in that: the length of drift (3) is identical with the length of access road (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620364199.0U CN205551111U (en) | 2016-04-27 | 2016-04-27 | When spherical corner inflation extrusion die of passageway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620364199.0U CN205551111U (en) | 2016-04-27 | 2016-04-27 | When spherical corner inflation extrusion die of passageway |
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| CN205551111U true CN205551111U (en) | 2016-09-07 |
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| CN201620364199.0U Expired - Fee Related CN205551111U (en) | 2016-04-27 | 2016-04-27 | When spherical corner inflation extrusion die of passageway |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107717470A (en) * | 2017-10-31 | 2018-02-23 | 徐州工程学院 | Compound super abrasive splined shaft extrusion die |
| CN108097733A (en) * | 2018-01-22 | 2018-06-01 | 中国科学院金属研究所 | A kind of crowded torsion Compound Machining mold and method that multi-direction shearing can be achieved |
| CN108326066A (en) * | 2018-02-22 | 2018-07-27 | 徐州工程学院 | Compound super abrasive blade pinches mold |
| CN108555055A (en) * | 2018-04-27 | 2018-09-21 | 哈尔滨理工大学 | A kind of compound crowded torsion building mortion of variable conduit and method |
| CN109604359A (en) * | 2018-12-30 | 2019-04-12 | 中北大学 | A kind of manufacturing process of the channel pressings bases such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy |
| CN109604364A (en) * | 2018-12-30 | 2019-04-12 | 中北大学 | A kind of shaping dies of the channel pressings bases such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy |
| CN111530955A (en) * | 2020-05-21 | 2020-08-14 | 燕山大学 | Double-channel variable-channel corner extrusion forming device and forming method |
-
2016
- 2016-04-27 CN CN201620364199.0U patent/CN205551111U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107717470A (en) * | 2017-10-31 | 2018-02-23 | 徐州工程学院 | Compound super abrasive splined shaft extrusion die |
| CN108097733A (en) * | 2018-01-22 | 2018-06-01 | 中国科学院金属研究所 | A kind of crowded torsion Compound Machining mold and method that multi-direction shearing can be achieved |
| CN108326066A (en) * | 2018-02-22 | 2018-07-27 | 徐州工程学院 | Compound super abrasive blade pinches mold |
| CN108326066B (en) * | 2018-02-22 | 2023-08-15 | 徐州工程学院 | Extrusion die for composite super wear-resistant blade |
| CN108555055A (en) * | 2018-04-27 | 2018-09-21 | 哈尔滨理工大学 | A kind of compound crowded torsion building mortion of variable conduit and method |
| CN109604359A (en) * | 2018-12-30 | 2019-04-12 | 中北大学 | A kind of manufacturing process of the channel pressings bases such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy |
| CN109604364A (en) * | 2018-12-30 | 2019-04-12 | 中北大学 | A kind of shaping dies of the channel pressings bases such as the two-way expansion of Mg-Gd-Y-Zn-Zr magnesium alloy |
| CN109604359B (en) * | 2018-12-30 | 2020-05-26 | 中北大学 | Forming method for Mg-Gd-Y-Zn-Zr magnesium alloy bidirectional expansion equal-channel extrusion blank making |
| CN111530955A (en) * | 2020-05-21 | 2020-08-14 | 燕山大学 | Double-channel variable-channel corner extrusion forming device and forming method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160907 Termination date: 20170427 |