CN204583887U - A kind of reciprocating extrusion device preparing block body ultrafine grain metal material - Google Patents
A kind of reciprocating extrusion device preparing block body ultrafine grain metal material Download PDFInfo
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- CN204583887U CN204583887U CN201520314438.7U CN201520314438U CN204583887U CN 204583887 U CN204583887 U CN 204583887U CN 201520314438 U CN201520314438 U CN 201520314438U CN 204583887 U CN204583887 U CN 204583887U
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Abstract
Prepare a reciprocating extrusion device for block body ultrafine grain metal material, comprising: upper punch, die, low punch and base.It is characterized in that: die is monolithic construction, die offers extruding die cavity, extruding die cavity is made up of upper cavity, equal channel angular die cavity and lower mode cavity, wherein equal channel angular die cavity connects upper cavity and lower mode cavity, be the adapter cavity vertical with upper and lower die cavity inner bottom surface with upper and lower die cavity junction, the center line of two adapter cavities point-blank, for there being the corner die cavity of certain angle between adapter cavity, adapter cavity is equal with the cross-sectional area of corner die cavity, less than the sectional area of upper and lower die cavity; Upper punch is placed in upper cavity, and low punch is placed in lower mode cavity; Die is placed on base, and there is circular groove at base center, and low punch is placed in the circular groove of base.The utility model, by constriction is designed to equal channel angular shape, makes material form larger detrusion, thus remarkable refiner material tissue.
Description
Technical field
The utility model belongs to materials processing technology field, is specifically related to a kind of reciprocating extrusion device preparing block body ultrafine grain metal material.
Background technology
Refining grain size can increase substantially intensity and the plasticity of metal material, expands the application of metal material, alleviates metallic material components weight.By the promotion of the pillar industry in national economy demands such as communications and transportation, Aero-Space and defence and military, day by day increase the demand of high specific strength, the contour performance structural material of high specific stiffness, development super fine crystal material is exploitation and the important method preparing the contour performance structural material of high specific strength.Conventional pressure process technology can material shaping while thinning microstructure, eliminate casting flaw, obtain the mechanical property more excellent than as cast condition product, but extruding, forging, rolling equal pressure process technology that traditional industry adopts do not reach certain critical value due to the dependent variable of processing at every turn, so be difficult to obtain ultrafine-grained (UFG) microstructure.In recent years, the research of severe Plastic Deformation Methods is shown, adopt strong plastic deformation just can obtain sub-micron, nanometer-size die, under the plasticity and toughness that maintenance is good, significantly improve the intensity of material.
Through finding the literature search of prior art, utility model patent " prepares the C shape equal channel reciprocating extrusion die of super fine crystal material " (application number 200420114966.X) and utility model patent " prepares the S shape equal channel angular reciprocating extrusion die of super fine crystal material ", and (application number 200420114965.5) discloses a kind of reciprocating extrusion device respectively, achieves equal channel angular reciprocating extrusion to a certain extent and prepares ultrafine grain metal material.But the shortcoming of above-mentioned mould is that die does not offer constriction, and single pass deformation extent and structure refinement ability are restricted, and deformation efficiency is lower.
Summary of the invention
The purpose of this utility model is the shortcoming overcoming prior art, provides a kind of reciprocating extrusion device preparing block body ultrafine grain metal material, makes it have stronger structure refinement ability, higher deformation efficiency.
Task of the present utility model is achieved through the following technical solutions, the utility model comprises: upper punch, die, low punch and base, it is characterized in that: die is monolithic construction, die offers extruding die cavity, extruding die cavity is by upper cavity, equal channel angular die cavity and lower mode cavity composition, wherein equal channel angular die cavity connects upper cavity and lower mode cavity, with on, lower mode cavity junction is with upper, the adapter cavity that lower mode cavity inner bottom surface is vertical, the center line of two adapter cavities point-blank, for there being the corner die cavity of certain angle between adapter cavity, adapter cavity is equal with the cross-sectional area of corner die cavity, than upper, the sectional area of lower mode cavity is little, upper punch is placed in upper cavity, and low punch is placed in lower mode cavity, die is placed on base, and there is circular groove at base center, and low punch is placed in the circular groove of base.
Described base, its upper surface is provided with positioning boss, for fixing die.
Described upper cavity, lower mode cavity and equal channel angular die cavity cross-sectional area can be and squarely also can be circle.
Technological core of the present utility model is the constriction be made up of equal channel angular die cavity.Operation principle is, first blank to be processed and die are heated to predetermined temperature, blank is put into upper cavity, under the effect of upper punch, blank enters equal channel angular die cavity along upper cavity, there is larger detrusion, continue extruding, blank vertically enters lower mode cavity, when after the stop running into low punch, blank generation pier is thick, until upper punch is all squeezed into equal channel angular die cavity blank, material is just in time full of lower mode cavity, first passage extruding terminates, then die is spun upside down, low punch becomes upper punch, lower mode cavity becomes upper cavity, repeat a procedure, repeatedly carry out until after dependent variable needed for obtaining, upper punch or low punch are removed, material is ejected die, obtain super fine crystal material.
Compared with prior art, the utility model has following beneficial effect:
The utility model, by constriction is designed to equal channel angular shape, makes material that larger detrusion occur, thus remarkable refiner material tissue; The utility model can prepare the super fine crystal materials such as simple metal, alloy, steel, metal-base composites, has single pass deformation extent large, and structure refinement ability is strong, the advantage that deformation efficiency is high.
Accompanying drawing explanation
Fig. 1 is that the utility model longitudinally partly cuts open structural representation (solid).
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated: the present embodiment is implemented under premised on technical solutions of the utility model; give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, a kind of reciprocating extrusion device preparing block body ultrafine grain metal material, the present embodiment comprises: upper punch 1, die 2, low punch 3 and base 4, it is characterized in that: die 2 is monolithic construction, die 2 offers extruding die cavity, extruding die cavity is made up of upper cavity 5, equal channel angular die cavity 6 and lower mode cavity 7, and wherein, equal channel angular die cavity connects upper cavity 5 and lower mode cavity 7; Upper punch 1 is placed in upper cavity 5, and low punch 3 is placed in lower mode cavity 7; Die 2 is placed on base 4, and there is circular groove at base 4 center, and low punch 3 is placed in the circular groove of base 4.
Described base 4, its upper surface is provided with positioning boss 8, for fixing die 2.
Utility model works principle is, first blank to be processed and die 2 are heated to predetermined temperature, blank is put into upper cavity 5, under the effect of upper punch 1, blank enters equal channel angular die cavity 6 along upper cavity 5, there is larger detrusion, continue extruding, blank vertically enters lower mode cavity 7, when after the stop running into low punch 3, blank generation pier is thick, until upper punch 1 is all squeezed into equal channel angular die cavity 6 blank, material is just in time full of lower mode cavity 7, first passage extruding terminates, then die 2 is spun upside down, low punch 3 becomes upper punch 1, lower mode cavity 7 becomes upper cavity 5, repeat a procedure, repeatedly carry out until after dependent variable needed for obtaining, upper punch 1 or low punch 3 are removed, material is ejected die 2, obtain super fine crystal material.
The utility model specifically can be implemented in a variety of forms and not depart from spirit or the essence of utility model, so be to be understood that, above-described embodiment is not limited to aforesaid details, and should explain widely in claim limited range, therefore fall into change in claim or its equivalent scope and remodeling and all should be claim and contained.
Claims (2)
1. prepare the reciprocating extrusion device of block body ultrafine grain metal material for one kind, comprise: upper punch (1), die (2), low punch (3) and base (4), it is characterized in that: die (2) is monolithic construction, die (2) offers extruding die cavity, extruding die cavity is by upper cavity (5), equal channel angular die cavity (6) and lower mode cavity (7) composition, wherein equal channel angular die cavity (6) connects upper cavity (5) and lower mode cavity (7), be the adapter cavity vertical with lower mode cavity (7) inner bottom surface with upper cavity (5) with upper cavity (5) and lower mode cavity (7) junction, the center line of two adapter cavities point-blank, for there being the corner die cavity of certain angle between adapter cavity, adapter cavity is equal with the cross-sectional area of corner die cavity, less than the sectional area of upper cavity (5) and lower mode cavity (7), upper punch (1) is placed in upper cavity (5), and low punch (3) is placed in lower mode cavity (7), die (2) is placed on base (4), and there is circular groove at base (4) center, and low punch (3) is placed in the circular groove of base (4).
2. a kind of reciprocating extrusion device preparing block body ultrafine grain metal material according to claim 1, is characterized in that, described upper cavity (5), lower mode cavity (7) and equal channel angular die cavity (6) cross-sectional area can be and squarely also can be circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520314438.7U CN204583887U (en) | 2015-05-15 | 2015-05-15 | A kind of reciprocating extrusion device preparing block body ultrafine grain metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520314438.7U CN204583887U (en) | 2015-05-15 | 2015-05-15 | A kind of reciprocating extrusion device preparing block body ultrafine grain metal material |
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| CN204583887U true CN204583887U (en) | 2015-08-26 |
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| CN201520314438.7U Expired - Fee Related CN204583887U (en) | 2015-05-15 | 2015-05-15 | A kind of reciprocating extrusion device preparing block body ultrafine grain metal material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105543733A (en) * | 2015-12-23 | 2016-05-04 | 山东省科学院新材料研究所 | Metal fine grain material extruding method, extruding mold and application |
| CN108380802A (en) * | 2018-03-30 | 2018-08-10 | 哈尔滨工业大学 | A kind of cycle revolving die squeezes upsetting building mortion and method |
| CN108405647A (en) * | 2018-03-14 | 2018-08-17 | 哈尔滨理工大学 | A kind of circular bar is crowded to turn round shaping dies and its crowded torsion method |
| CN109047364A (en) * | 2018-09-21 | 2018-12-21 | 江苏科技大学 | A kind of cycle extrusion mold preparing bulk ultrafine-grained materials and method |
| CN110508635A (en) * | 2019-08-27 | 2019-11-29 | 太原理工大学 | A kind of asymmetric reciprocating extrusion device and processing method with separate type punch-pin |
| CN112296111A (en) * | 2020-10-10 | 2021-02-02 | 中国兵器工业第五九研究所 | Plastic forming method of large-scale complex special-shaped structural part |
| CN112371744A (en) * | 2020-10-22 | 2021-02-19 | 烟台大学 | Machining device and machining method for metal pipe |
-
2015
- 2015-05-15 CN CN201520314438.7U patent/CN204583887U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105543733A (en) * | 2015-12-23 | 2016-05-04 | 山东省科学院新材料研究所 | Metal fine grain material extruding method, extruding mold and application |
| CN108405647A (en) * | 2018-03-14 | 2018-08-17 | 哈尔滨理工大学 | A kind of circular bar is crowded to turn round shaping dies and its crowded torsion method |
| CN108380802A (en) * | 2018-03-30 | 2018-08-10 | 哈尔滨工业大学 | A kind of cycle revolving die squeezes upsetting building mortion and method |
| CN108380802B (en) * | 2018-03-30 | 2019-09-13 | 哈尔滨工业大学 | A kind of circulation revolving die squeezes upsetting forming device and method |
| CN109047364A (en) * | 2018-09-21 | 2018-12-21 | 江苏科技大学 | A kind of cycle extrusion mold preparing bulk ultrafine-grained materials and method |
| CN110508635A (en) * | 2019-08-27 | 2019-11-29 | 太原理工大学 | A kind of asymmetric reciprocating extrusion device and processing method with separate type punch-pin |
| CN112296111A (en) * | 2020-10-10 | 2021-02-02 | 中国兵器工业第五九研究所 | Plastic forming method of large-scale complex special-shaped structural part |
| CN112296111B (en) * | 2020-10-10 | 2022-07-22 | 中国兵器工业第五九研究所 | Plastic forming method of large-scale complex special-shaped structural part |
| CN112371744A (en) * | 2020-10-22 | 2021-02-19 | 烟台大学 | Machining device and machining method for metal pipe |
| CN112371744B (en) * | 2020-10-22 | 2022-12-23 | 烟台大学 | Machining device and machining method for metal pipe |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |