CN207996898U - A kind of crowded torsion Compound Machining mold that multi-direction shearing can be achieved - Google Patents
A kind of crowded torsion Compound Machining mold that multi-direction shearing can be achieved Download PDFInfo
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- CN207996898U CN207996898U CN201820103718.7U CN201820103718U CN207996898U CN 207996898 U CN207996898 U CN 207996898U CN 201820103718 U CN201820103718 U CN 201820103718U CN 207996898 U CN207996898 U CN 207996898U
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- 238000010008 shearing Methods 0.000 title claims abstract description 38
- 150000001875 compounds Chemical class 0.000 title claims abstract description 19
- 238000003754 machining Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 claims description 5
- 230000002706 hydrostatic effect Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000007704 transition Effects 0.000 description 10
- 238000003825 pressing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 235000009854 Cucurbita moschata Nutrition 0.000 description 1
- 240000001980 Cucurbita pepo Species 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010274 multidirectional forging Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 235000020354 squash Nutrition 0.000 description 1
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Abstract
The utility model is related to Technology of Plastic Processing fields, and in particular to a kind of crowded torsion Compound Machining mold that multi-direction shearing can be achieved.The mold is divided into punch-pin, cavity plate and back pressure apparatus, and the top of punch-pin and the pressure head of forcing press are connected and fixed, and bottom and the lower die holder of cavity plate are fixed, and cavity plate includes mold core and die holder two parts, and the cavity of turned blank is in mold core.The utility model passes through reasonable mold design, torsion process and variable conduit angle extrusion process are squeezed in combination, it not only may be implemented to squeeze and torsion composite deformation, it can also realize multi-direction shear-deformable (circumferential shearing and radial shear), using compressive deformation and shear-deformable cooperation, the purpose for improving material structure and regulating and controlling texture is played, while increasing back pressure apparatus and material is made to be in three-dimensional compressive stress state, material deformability is improved, the deformation of inductile difficult-to-machine material is then completed.The deformation processing of bar and proximate matter may be implemented in the utility model, and material prepared has fine grain or ultrafine-grained (UFG) microstructure.
Description
Technical field
The utility model is related to Technology of Plastic Processing fields, and in particular to a kind of crowded torsion that multi-direction shearing can be achieved is compound
Processing mold.
Background technology
In recent years, carrying the big plastic forming technology of shear strain becomes the research hotspot and emphasis of people.Material passes through
After large plastometric set, larger equivalent plastic strain can be accumulated, so that material grains refine, can be reached super
Fine grain is even nanocrystalline;Meanwhile shear strain is conducive to material internal energy accumulation, can improve the texture distribution feelings of material
Condition, hence it is evident that reduce its anisotropy.Common severe Plastic Deformation Methods have:Equal Channel Angular Pressing (Equal Channnel
Angular Pressing, ECAP), high pressure torsion (High Pressure Torsion, HPT), reciprocating extrusion (Cyclic
Extrusion Compression, CEC), multiway forging (Multi-Directional Forging, MDF), extrusion shearing
(Extrusion Shear, ES) etc., but that generally existing forming passage is more, die apparatus is complex, sample size is small etc. is scarce
Point, and mostly single shear-deformable or compressive deformation cannot achieve big compressive deformation and shear-deformable accumulation compound simultaneously.
In order to overcome disadvantage mentioned above, the channel pressings mold such as patent publication No. CN103447341A propositions that can utilize and cut
The variation realization of face shape is shear-deformable, but this method is only applicable to bar processing, and extruding is smaller, cannot achieve larger etc.
Imitate accumulative effect of strain.Patent publication No. CN101966536A introduces a kind of torsional mode reciprocating extrusion device, passes through the tight of cavity
Contracting area realizes crimp, and the torsional deflection of workpiece is realized by the high speed rotation of punch, but multi-step forming is needed to realize
Larger plastic deformation, the realization of punch high speed rotation is complex, and uncontrollable factor is more.Patent publication No. CN102430609A
It proposing a kind of equal channel variable cross-sections extrusion die, the torsional variation of cross sectional shape and angle can be utilized, realization is shear-deformable, but
This method can not accumulate larger plastic strain and need multi-step forming, and process is complex.Patent publication No.
CN205732338U, which introduces a kind of continuous forward extrusion and squeezes, turns round composite forming device, which is realized by three-level squeezing passage
Torsional deflection is squeezed, but the device is only used for rectangle bar, cannot achieve the processing of circular bar.Patent publication No.
CN104475475A introduces a kind of turn round and squeezes shaping dies, which can realize to squeeze and reverse with single pass by cavity design becomes
Shape, but its crimp is separately carried out with torsional deflection, and circumferential torsion only occurs for twist section, not there is no crimp.Patent
Publication number CN103551415A introduces a kind of metal variable cross-section and squeezes building mortion and the method turned round, and this method may be implemented to become squeezing
Twist deformation while shape, but its torsional deflection is only circumferential shear-deformable.Patent publication No. CN103785702A is introduced
A kind of vortex squash type large plastometric set device, the Zona transformans formed using some raised strips or groove, passes through Zona transformans
Auxiliary realizes torsional shear deformation, and this method, which is realized, squeezes torsion composite deformation, but its stock utilization is relatively low.Patent publication No.
CN201520075843 introduces a kind of variable cross-section screw-type extrusion mold, passes through the design of helical duct so that material is squeezing
Generation is circumferential shear-deformable while deformation, cannot achieve radial shear deformation.Above mold design and processing method, can be with
Realize that crimp is accumulated simultaneously with shear-deformable, but its shear direction is mostly single type shearing (being mostly circumferential shearing), nothing
Method realizes the cooperation of compressive deformation and multi-direction guillotine style.
Utility model content
The purpose of this utility model is to provide a kind of crowded torsion Compound Machining mold that multi-direction shearing can be achieved, the molds
It processes suitable for mental section and bar, is combined with variable conduit angle extrusion die by squeezing torsion module, can be introduced multi-party
To and larger shear strain, it is processed in blank by mandril in the utility model so as to improve material structure and performance
Back pressure is added in journey, material can be made to be in three-dimensional compressive stress state, improve the crystallized ability of material, and pass through totality
Extrusion ratio designs the large plastometric set process that material may be implemented.
The technical solution of the utility model is as follows:
A kind of crowded torsion Compound Machining mold that multi-direction shearing can be achieved, the mold are divided into punch-pin, cavity plate and back pressure apparatus,
The top of punch-pin and the pressure head of forcing press are connected and fixed, and bottom and the lower die holder of cavity plate are fixed, and cavity plate includes mold core and die holder two
Part, the cavity of turned blank is in mold core;Back pressure apparatus is placed in the outlet end of mold core cavity, and blank is placed on mold core cavity
In.
The crowded torsion Compound Machining mold that multi-direction shearing can be achieved, mold core cavity are followed successively by importing from top to bottom
Section, extruded segment squeeze the circumferential shearind section of torsion, plastic section, variable conduit angle extruding radial shearind section.
The crowded torsion Compound Machining mold that multi-direction shearing can be achieved, squeezing, the circumferential shearind section realization of torsion is radial
While compression, circumferential shearing occurs, realizes that radial compression and shearing composite deformation, material pass through single track in variable conduit extruded segment
3~4 equivalent ductility deformation and 1~2 shear-deformable accumulation are realized in secondary deformation.
The described crowded torsion Compound Machining mold that multi-direction shearing can be achieved, the importing segment length of mold core cavity is 80~
100mm, it is 30~60mm to squeeze the circumferential shearing segment length of torsion, and windup-degree is 0~90 °, shaping 40~60mm of segment length, is become
Extrusion radial shear section channel angle is 90~150 °, and it is 0~150MPa that back pressure apparatus, which applies back pressure,.
The crowded torsion Compound Machining mold that multi-direction shearing can be achieved, the outlet end of mold core cavity is used as by mandril
Back pressure apparatus applies back pressure, increases hydrostatic pressure suffered by material, improves the deformability of workpiece material.
The crowded torsion Compound Machining mold that multi-direction shearing can be achieved, the die holder and mold core of cavity plate are divided into a symmetrical left side
Side and right side two parts, sample takes out after facilitating processing.
It the advantages of the utility model and has the beneficial effect that:
(1) the utility model is squeezed torsion module and variable conduit angle extrusion die, can be facilitated by mold design, combination
Compressive deformation and shear-deformable composite stress state are realized in deformed area simultaneously, and it is tired that multi-direction shear strain may be implemented
Product.
(2) the utility model is by deformation section mold design, and single pass large plastometric set and big shear-deformable may be implemented
Accumulation.
(3) the utility model improves suffered hydrostatic pressure in material processing, Ke Yishi by the addition of back pressure apparatus
Existing inductile material shapes.
(4) the utility model can be applied to the processing of bar and proximate matter, and easy to operate, efficiency is higher.
Description of the drawings:
Fig. 1 (a) is that one of torsion composite die schematic diagram is squeezed in multi-direction shearing, and Fig. 1 (b) is that the mold core cavity in Fig. 1 (a) shows
It is intended to, 1 introduction segment, 2 extruded segments, 3 squeeze the circumferential shearind section of torsion, and 4 plastic sections, 5 variable conduit angle extruding radial shearind sections, 6 is convex
Mould, 7 mold cores, 8 die holders, 9 bottoming holes, 10 thermometer holes, 11 back pressure mandrils.
Fig. 2 (a) is that two schematic diagrames for turning round composite die are squeezed in multi-direction shearing, and Fig. 2 (b) is that the mold core cavity in Fig. 2 (a) shows
It is intended to, 1 introduction segment, 2 extruded segments, 3 squeeze the circumferential shearind section of torsion, and 4 plastic sections, 5 variable conduit angle extruding radial shearind sections, 6 is convex
Mould, 7 mold cores, 8 die holders, 9 bottoming holes, 10 thermometer holes, 11 back pressure mandrils.
Fig. 3 (a)-Fig. 3 (i) is bar processing mold cross-sectional view.Wherein, Fig. 3 (a) is mold core sectional view, Fig. 3
(b) the mold core cavity the size of each part figure for being Fig. 3 (a), Fig. 3 (c) are the Section A-A figure of Fig. 3 (a), and Fig. 3 (d) is Fig. 3's (a)
Section B-B figure, Fig. 3 (e) are the C-C sectional views of Fig. 3 (a), and Fig. 3 (f) is the D-D sectional views of Fig. 3 (a), and Fig. 3 (g) is Fig. 3 (a)
E-E sectional views, Fig. 3 (h) be Fig. 3 (a) F-F sectional views, Fig. 3 (i) be Fig. 3 (a) the sections E-E to the sections F-F longitudinal section
Shape changing figure.
Fig. 4 (a)-Fig. 4 (i) is shape extrusion mold cross-sectional view.Wherein, Fig. 4 (a) is mold core sectional view, Fig. 4
(b) the mold core cavity the size of each part figure for being Fig. 4 (a), Fig. 4 (c) are the Section A-A figure of Fig. 4 (a), and Fig. 4 (d) is Fig. 4's (a)
Section B-B figure, Fig. 4 (e) are the C-C sectional views of Fig. 4 (a), and Fig. 4 (f) is the D-D sectional views of Fig. 4 (a), and Fig. 4 (g) is Fig. 4 (a)
E-E sectional views, Fig. 4 (h) be Fig. 4 (a) F-F sectional views, Fig. 4 (i) be Fig. 4 (a) the sections E-E to the sections F-F longitudinal section
Shape changing figure.
Specific implementation mode:
In specific implementation process, the utility model can realize the crowded torsion combined machining method of multi-direction shearing, including such as
Lower step:
(1) deformation section mold design determines the primary deformable of mold key deformation section according to material preparation and processing needs
Parameter predominantly squeezes the circumferential shearind section initial cross-section size and shape of torsion, end of a period sectional dimension and shape, squeezes torsion week
To shearind section distance, windup-degree and variable conduit angle extruding radial shearind section channel angle and end of a period sectional dimension and shape;
(2) unitary mould designs, mold overall dimension design (including mainly mold height, length, width design);
(3) it chooses whether that back pressure is added as needed and the size of back pressure is added, the mold that (1) and (2) design is completed,
Suitable forcing press is selected to carry out mold assembly;
(4) it carries out blank using the mold assembled in (3) and squeezes torsional deflection processing, uniformly applied in cavity inner wall first
High-temperature lubricant is smeared, puts blank into introduction segment, blank is heated using heating rod, is heated to after needing temperature, is kept the temperature
For a period of time so that blank internal temperature reaches uniform, and blank push-in introduction segment is processed by punch-pin, with the pressure of punch-pin
Under, blank passes sequentially through extruded segment, squeezes the circumferential shearind section of torsion, plastic section, variable conduit angle extruding radial shearind section, final complete
At processing.
As shown in Fig. 1 (a) and Fig. 2 (a), the utility model can realize the crowded torsion Compound Machining mold of multi-direction shearing, should
Mold is divided into punch-pin 6, cavity plate and back pressure apparatus, and the top of punch-pin 6 and the pressure head of forcing press are connected and fixed, and the bottom of cavity plate is under
Die holder is fixed, and cavity plate includes 8 two parts of mold core 7 and die holder, and the cavity of turned blank opens thermometer hole in mold core 7 on mold core 7
10, thermocouple is placed in thermometer hole 10, measure and control process in sample temperature;Mold core 7 is mounted in die holder 8, mould
Bottoming hole 9 is drilled through on seat 8, places resistance heating stick in bottoming hole 9 and sample is heated and kept the temperature;Back pressure apparatus (back pressure top
Bar 11) it is placed in the outlet end of mold core cavity, blank is placed in mold core cavity.
Wherein, mold core cavity is followed successively by introduction segment 1, extruded segment 2, squeezes the circumferential shearind section 3 of torsion, plastic section from top to bottom
4, variable conduit angle extruding radial shearind section 5, the connection between every section smoothly transit.Circumferential shearind section realization radial direction is reversed squeezing
While compression, circumferential shearing and radial shear deformation occurs, material is deformed by single pass, and accumulates larger equivalent ductility
Deformation and shear-deformable, equivalent ductility deformation generally 3~4, shear-deformable generally 1~2.The importing segment length of mold core cavity
For 80~100mm, it is 30~60mm to squeeze the circumferential shearing segment length of torsion, and windup-degree is 0~90 °, shaping segment length 40~
60mm, variable conduit angle extruding radial shearind section channel angle is 90~150 °, and it is 0~150MPa that back pressure apparatus, which applies back pressure,.
The outlet end of mold core cavity is used as back pressure apparatus by mandril and applies back pressure, increases hydrostatic pressure suffered by material, improves workpiece material
The formability of material.The die holder and mold core of cavity plate are divided into symmetrical left and right side two parts, and sample takes out after facilitating processing.
In the following, be further elaborated on to the utility model with attached drawing in conjunction with the embodiments.
Embodiment 1:
The utility model is applicable not only to bar processing, applies also for shape extrusion.The present embodiment by taking bar is processed as an example,
Illustrate mold design and material processing situation.
As shown in Fig. 1 (b) and Fig. 3 (a)-Fig. 3 (i), the mold core cavity include round introduction segment 1, circle-ellipse extruded segment 2,
Ellipse-ellipse squeezes the circumferential shearind section 3 of torsion, oval-circle plastic section 4, circle-circle variable conduit angle extruding radial shearind section 5,
In:Referring to Fig. 3 (c), the cavity cross section of round introduction segment 1 is circle, and round diameter D, importing segment length is L1;Referring to figure
The cavity cross section of 3 (d), round-oval extruded segment 2 are respectively the round transition to ellipse, initial position round diameter
Axial ratio for D, final position ellipse is m, and torsion segment length is L2;Referring to Fig. 3 (e), ellipse-ellipse squeezes torsion week
To the transition that the cavity cross section of shearind section 3 is ellipse to ellipse, the axial ratio of initial position ellipse is a, is terminated
The axial ratio of position ellipse is a, and windup-degree isThe circumferential shearing segment length of torsion is L3;Referring to Fig. 3 (f), ellipse
It is that ellipse arrives circular transition to the cavity cross section of round plastic section 4, the axial ratio of initial position ellipse is a, eventually
It is d that stop bit, which sets round diameter,1, shaping segment length is L4;Referring to Fig. 3 (f)-Fig. 3 (i), circle-circle variable conduit angle extruding radial shearing
The cavity cross section of section 5 is that circle arrives circular transition, and initial cross-section round diameter is d1, a diameter of d of end of a period section circle2, lead to
Road angle is
In the present embodiment, concrete operation step is as follows:
Step 1:Die parameters design.
In the present embodiment, major parameter design is as follows:Bar size is diameter 30mm, and length is no more than round introduction segment
1 length L1=80mm;The length L of circle-ellipse extruded segment 22=10mm, wherein initial end round diameter D=30mm, end of a period end
Oval long axis:Short axle=25mm:20mm, a diameter of extruding twist section which reduces material are prepared;Ellipse-ellipse
Squeeze the length L of torsion circumferential direction shearind section 33=40mm, wherein initial end ellipse long axis:Short axle=25mm:20mm, end of a period end
Oval long axis:Short axle=15mm:12mm, two transverse angles are 90 °;The length L of oval-circle plastic section 44=
10mm, wherein initial end ellipse long axis:Short axle=15mm:12mm, end of a period end round diameter d1=15mm;Circle-circle variable conduit
The cavity cross section of angle extruding radial shearind section 5 is that circle arrives circular transition, and initial cross-section round diameter is d1=15mm, eventually
Section circle a diameter of d2=10mm, channel angle are
Step 2:Unitary mould designs, and the design of mold overall dimension (is mainly set including mold height, length, width
Meter).
Step 3:The size of back pressure is selected according to demand, and magnitude of back pressure is 100MPa herein, and its object is to realize more
Strong three-dimensional compressive stress state, improves the crystallized ability of material;Suitable forcing press is selected to carry out mold assembly, wherein wrapping
It includes:The tonnage of forcing press, workbench size, the stroke of a press;
Step 4:The mold assembled is placed on forcing press and is processed, under the promotion of punch-pin, bar enters cavity plate
In each stage of cavity, finished size is ultimately formed, Soft reduction rate and temperature should be controlled in the step.
Embodiment 2:
The utility model is applicable not only to bar processing, applies also for shape extrusion.The present embodiment by taking shape extrusion as an example,
Illustrate mold design and material processing situation.
As shown in Fig. 1 (b) and Fig. 4 (a)-Fig. 4 (i), which includes rectangular introduction segment 1, rectangular-rectangle extruded segment
2, rectangle-rectangle squeezes the circumferential shearind section 3 of torsion, the rectangular plastic section 4 of rectangle-, rectangle-rectangle variable conduit angle extruding radial shearing
Section 5, wherein:Referring to Fig. 4 (c), the cavity cross section of rectangular introduction segment 1 is rectangular, a length of l of Quad Sides1, importing segment length is L5;
Referring to Fig. 4 (d), the cavity cross section of rectangular-rectangle extruded segment 2 is respectively the rectangular transition to rectangle, initial position Quad Sides
A length of l1, the long short side ratio of final position rectangle is n, and torsion segment length is L6;Referring to Fig. 4 (e), rectangle-rectangle squeezes torsion week
It is transition of the rectangle to rectangle to the cavity cross section of shearind section 3, the long short side ratio of initial position rectangle is a, final position square
The long short side ratio of shape is a, and windup-degree isThe circumferential shearing segment length of torsion is L7;Referring to Fig. 4 (f), rectangle to rectangular shaping
The cavity cross section of section 4 is rectangle to rectangular transition, and the long short side ratio of initial position rectangle is a, the rectangular length of side of final position
For l2, shaping segment length is L8;Referring to Fig. 4 (g)-Fig. 4 (i), the cavity of rectangular-rectangular variable conduit angle extruding radial shearind section 5 is horizontal
Rectangular transition is arrived in section to be rectangular, and the rectangular length of side of initial position is l2, the rectangular length of side in ultimate position is l3, channel angle
For
In the present embodiment, concrete operation step is as follows:
Step 1:Die parameters design.Major parameter design is as follows in the present embodiment:Profile size is length of side l1=30mm,
Length L of the length no more than rectangular introduction segment 15=80mm;The length L of rectangular-rectangle extruded segment 26=10mm, wherein initially
Hold a length of 30mm of Quad Sides, end of a period end moment shape long side:Short side=25mm:20mm, the size which reduces material are to squeeze
Twist section is prepared;Rectangle-rectangle squeezes the length L of torsion circumferential direction shearind section 37=40mm, wherein initial end rectangle long side:It is short
Side=25mm:20mm, end of a period end moment shape long side:Short side=15mm:12mm, two rectangle long axis anglesIt is 90 °;Rectangle-side
The length L of shape plastic section 48=10mm, wherein initial end rectangle long side:Short side=15mm:12mm, the rectangular length of side l in end of a period end2=
15mm;The cavity cross section of rectangular-rectangular variable conduit angle extruding radial shearind section 5 is rectangular to rectangular transition, initial position
The rectangular length of side is l2=15mm, the rectangular length of side in ultimate position are l3=10mm, windup-degree are
Step 2:Unitary mould designs, and the design of mold overall dimension (is mainly set including mold height, length and width
Meter).
Step 3:The size of back pressure is selected according to demand, and magnitude of back pressure is 100MPa herein, and its object is to realize more
Strong three-dimensional compressive stress state, improves the crystallized ability of material;Suitable forcing press is selected, including:The ton of forcing press
Position, workbench size, the stroke of a press;
Step 4:The mold assembled is placed in compression and is processed, under the promotion of punch-pin, proximate matter enters cavity plate
In each stage of cavity, finished size is ultimately formed, Soft reduction rate and temperature should be controlled in the step.
Embodiment the result shows that, torsion process and variable conduit angle extrusion process, reasonable mold core cavity are squeezed in the utility model combination
Design, not only may be implemented to squeeze with torsion composite deformation, can also realize that multi-direction shear-deformable (circumferential shearing is cut with radial direction
Cut), using compressive deformation and shear-deformable cooperation, the purpose for improving material structure and regulating and controlling texture is played, while increasing the back of the body
For pressure device (back pressure mandril) so that material is in three-dimensional compressive stress state, it is difficult then to complete inductile for raising material deformability
Rapidoprint deforms.The deformation processing of bar and proximate matter may be implemented in the utility model, and material prepared has fine grain or super
Fine grained texture.
Claims (6)
1. it is a kind of can be achieved multi-direction shearing crowded torsion Compound Machining mold, which is characterized in that the mold be divided into punch-pin, cavity plate and
Back pressure apparatus, the top of punch-pin and the pressure head of forcing press are connected and fixed, and bottom and the lower die holder of cavity plate are fixed, and cavity plate includes mold core
With die holder two parts, the cavity of turned blank is in mold core;Back pressure apparatus is placed in the outlet end of mold core cavity, and blank is placed on
In mold core cavity.
2. the crowded torsion Compound Machining mold according to claim 1 that multi-direction shearing can be achieved, which is characterized in that mold core type
Chamber is followed successively by introduction segment, extruded segment, squeezes the circumferential shearind section of torsion, plastic section, the shearing of variable conduit angle extruding radial from top to bottom
Section.
3. the crowded torsion Compound Machining mold according to claim 2 that multi-direction shearing can be achieved, which is characterized in that squeezing
While the circumferential shearind section of torsion realizes radial compression, circumferential shearing occurs, realizes radial compression in variable conduit extruded segment and cuts
Composite deformation is cut, material is deformed by single pass, realizes 3~4 equivalent ductility deformation and 1~2 shear-deformable accumulation.
4. the crowded torsion Compound Machining mold according to claim 2 that multi-direction shearing can be achieved, which is characterized in that mold core type
The importing segment length of chamber is 80~100mm, and it is 30~60mm to squeeze the circumferential shearing segment length of torsion, and windup-degree is 0~90 °,
Shaping 40~60mm of segment length, variable conduit angle extruding radial shearind section channel angle is 90~150 °, and back pressure apparatus applies back pressure
Power is 0~150MPa.
5. the crowded torsion Compound Machining mold according to claim 1 that multi-direction shearing can be achieved, which is characterized in that mold core type
The outlet end of chamber is used as back pressure apparatus by mandril and applies back pressure, increases hydrostatic pressure suffered by material, improves the change of workpiece material
Shape ability.
6. the crowded torsion Compound Machining mold according to claim 1 that multi-direction shearing can be achieved, which is characterized in that cavity plate
Die holder and mold core are divided into symmetrical left and right side two parts, and sample takes out after facilitating processing.
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| Application Number | Priority Date | Filing Date | Title |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820103718.7U CN207996898U (en) | 2018-01-22 | 2018-01-22 | A kind of crowded torsion Compound Machining mold that multi-direction shearing can be achieved |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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