CN103624098B - A kind of electro plasticity tube extrusion shaped device - Google Patents
A kind of electro plasticity tube extrusion shaped device Download PDFInfo
- Publication number
- CN103624098B CN103624098B CN201310626925.2A CN201310626925A CN103624098B CN 103624098 B CN103624098 B CN 103624098B CN 201310626925 A CN201310626925 A CN 201310626925A CN 103624098 B CN103624098 B CN 103624098B
- Authority
- CN
- China
- Prior art keywords
- mandrel
- recipient
- dummy block
- pulse power
- module
- 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.)
- Expired - Fee Related
Links
Landscapes
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a kind of electro plasticity tube extrusion shaped device, comprise the pulse power, movable extrusion mold, dummy block, recipient, the quiet mould of extruding and mandrel, extrude quiet mould and comprise resistive module and conductive module.Dummy block and mandrel link together, and movable extrusion mold drives dummy block, mandrel and blank to move in recipient; Extrude quiet mould and recipient removably links together.Mandrel is connected with the cathode conductor of the pulse power; The positive wire of the conductive module and the pulse power that extrude quiet mould is connected.The size of resistive module and mandrel is determined by the size of pipe and tubing after processing, and the electric current that the pulse power provides is determined according to the material of blank.Processing unit (plant) of the present invention manufactures tubing by extrusion process, and on the quiet mould of extruding, introduce pulse current, resistive module energising can produce heat, to carry out local heat to blank, make blank more easily extruded by electro plasticity effect simultaneously, improve operating efficiency, decrease the loss of cost and the energy.
Description
Technical field
The present invention relates to the extruded field in plastic working, particularly relate to a kind of electro plasticity tube extrusion shaped device.
Background technology
Extruded is an important forming technology technology in plastic working field, that crunch is applied to the metal stock be placed in mould cavity (or recipient), force metal stock to produce directed plastic deformation, extrude from the nib of extrusion die and obtain required section configuration, size there is the part of certain mechanical property or half-finished plastic processing method.Extruding can produce pipe, rod, type, wire rod and various machine components.Traditional extrusion technique applies certain external force to the metal stock be placed in mould, makes the plastic processing method that it extrudes nib or flows into specific hole and be shaped.By metal flow flow direction and deformation behaviour classification, there are forward extrusion, reverse extrusion, lateral compression, continuously extruded and special extruding.By extrusion temperature classification, there is hot extrusion, Warm Extrusion and cold extrusion.
Known by the microcosmic mechanism of metal plastic deformation, the essence of plastic deformation is generation and the motion of a large amount of dislocation, due to motion and the mutual effect of dislocation, by phenomenon such as the generation entanglement of dislocation and the reaction of dislocation and second-phase and crystal defect etc. in plastic deformation, thus hinder the motion of dislocation, form work hardening, make plastic deformation be difficult to continue.Therefore, metal material is adopted to the technology of hot extrusion molding, temperature metal material being heated to hot forging forming extrudes.Like this, by means of the feature that metal material plasticity under hot forging temperature is good, various extrusion molding is carried out to metal.At present, hot extrusion is mainly for the manufacture of common prismatic long elements, section bar, tubing, bar and various machine parts etc.Hot extrusion not only can be shaped the relatively low non-ferrous metal machine alloy, low medium carbon steel etc. of plasticity, but also can the higher high-carbon of fabrication strength and high-alloy steel, as stainless steel, high-speed tool steel and heat resisting steel etc.But, adopt hot-pressed technology, metal stock must be heated to hot forging temperature and extrude, usually add thermal defect with more serious oxidation and decarburization etc., dimensional accuracy and the surface roughness of part are overstock in impact, and in order to make metal stock reach uniform forming temperature, the time of heating is generally long, thermal losses is larger, and production efficiency is lower.And electro plasticity effect refers to that metal material is under the effect of moving electron (electric current or electric field), resistance of deformation sharply declines, the phenomenon that plasticity significantly improves.Therefore electro plasticity effect is utilized, in Metal Forming process, flow of metal direction imposes high-density current, thus form electron wind in metal inside, electron wind acts on metal and promotes the motion of its dislocation and the obstacle overcome in motion, the impact that the work hardening phenomenon alleviating metal produces, makes its forming property greatly improve.Alternating current also can produce induction alternating magnetic field simultaneously, and then induces alternating electric field, and the metal be in electric field can produce induced-current and reach the object of heating.
Numerous for hot-pressed related invention patent, publication number is the tool and mould giving the extruding of a kind of seamless aluminium tubing in the invention of CN2715873Y, its mainly for be the aluminum pipe of easier Plastic Forming, but this invention can not realize tubing to attenuate thinning processing.And publication number is in the invention of CN101670385A, employ and pulse current is applied to increase the formability of material to metal material, but its device is simple, is not suitable for processing tubing.Publication number is in order to realize extrusion molding in the innovation and creation of CN202516868U, heater is housed in the middle part of recipient to METAL HEATING PROCESS, due to heating to as if monoblock raw material, there is the heat time long, the problem that thermal losses is large, efficiency is lower.
Therefore, it is a kind of by introducing electric current to turned blank that those skilled in the art is devoted to exploitation, according to the electro plasticity effect of metal material, increases the ductility of metal material and reduce the electro plasticity extrusion forming device of the positive drag of plastic deformation.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of electro plasticity tube extrusion shaped device.
For achieving the above object, the invention provides a kind of electro plasticity tube extrusion shaped device, it is characterized in that, comprise mandrel, movable extrusion mold, dummy block, recipient, the quiet mould of extruding and the pulse power;
Described mandrel and described dummy block are fixed together;
Described recipient is the tubular structure of both ends open, at the first end of described recipient, blank, described movable extrusion mold, described dummy block and described mandrel put into described recipient by the opening of the first end of described recipient, and described movable extrusion mold drives described dummy block and the motion of described mandrel; Second end and the quiet mould of described extruding of described recipient removably link together;
The quiet mould of described extruding comprises resistive module and conductive module, and described conductive module is wrapped in the outside of described resistive module;
Described resistive module is an annular column structure, the internal diameter of internal diameter and described recipient that described resistive module is connected one end with described recipient matches, and from the second end of described recipient, the inner surface of described resistive module is to described mandrel uniform pitch;
The positive pole of the described pulse power is connected with the described conductive module wire of the quiet mould of described extruding, and the negative pole of the described pulse power is connected with described mandrel wire by described movable extrusion mold.
Further, described dummy block, described movable extrusion mold and described recipient insulating materials are made.
Further, described dummy block be hollow, described mandrel is fixedly connected with by screw thread or snap close with described dummy block.
Further, described movable extrusion mold is hollow, and described mandrel is connected with the cathode conductor of the described pulse power with the hollow space of described movable extrusion mold by the hollow space of described dummy block.
Further, described mandrel adopts easy conductive material.
Further, the electric current that the described pulse power provides is according to slab selection.
Further, described resistive module be according to processing after tubing design, described resistive module away from described recipient one end internal diameter with processing after tubing matching.
Further, the external diameter of described mandrel and the tubing after processing match.
Further, described conductive module adopts conductive material to make, and in a preferred embodiment of the present invention, employing conductive material is copper.
Further, described resistive module adopts resistance material to make, and in a preferred embodiment of the present invention, the resistance material of employing is iron.The resistive module that iron does, can conduct electricity on the one hand, and on the one hand because the effect of resistance produces certain heat, the heat of generation makes tubing more easily carry out plastic working.
In better embodiment of the present invention, the blank that dummy block extruding is positioned at recipient is promoted by movable extrusion mold, the pulse power provides electric current to respectively the conductive material on the quiet mould of extruding and mandrel simultaneously, when electric current is by extruding the resistance material inside quiet mould, a large amount of heats can be produced, owing to extruding Jing Mochu, there is very large plastic deformation in blank, heating can make it more yielding, electric current also can pass through very most blank simultaneously, particularly very large in the current density of blank near extruding Jing Mochu, by the electro plasticity effect of metal material, its plasticity is improved, the tubing that corresponding deformation obtains needs can be completed.
The present invention all can produce heat to blank heating by the quiet mould of extruding connecting pulse power positive pole with the mandrel being connected pulse power negative pole, utilize the electro plasticity effect of metal material to make tubing more easily plastic deformation occur simultaneously, reduce the plastic deformation resistance in extrusion process process, these two kinds of effects mainly act on the blank that large plastometric set occurs at extruding quiet nib gap place, also there is certain effect to the blank away from hole place simultaneously, in addition, in the present invention, the diameter of mandrel is smaller, be applicable to produce the less tubing of internal diameter, compared to conventional method, entirety heating is carried out to whole blank and decrease cost and energy loss, substantially increase operating efficiency.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the profile of a kind of electro plasticity tube extrusion shaped device of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated: the present embodiment is implemented under with technical solution of the present invention prerequisite, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
A kind of electro plasticity tube extrusion shaped device of the present invention as shown in Figure 1, comprises the pulse power 1, movable extrusion mold 2, dummy block 3, recipient 4, mandrel 7 and extrudes quiet mould, extrudes quiet mould and comprises conductive module 6 and resistive module 5.
Dummy block 3 is hollow, and dummy block 3 and mandrel 7 are fixed together by screw thread or snap close.
Movable extrusion mold 2 is also hollow, and mandrel 7 is linked together by the cathode conductor of the hollow space of dummy block 3 and the hollow space of movable extrusion mold 2 and the pulse power 1.
Recipient 4 is tubular structures of a both ends open.At the first end of recipient 4, i.e. one end of the nearly pulse power 1 of recipient 4 as shown in Figure 1, blank puts into recipient by the opening of recipient 4 first end, then puts into the mandrel 7 and dummy block 3 and movable extrusion mold 2 that are fixed together successively.Movable extrusion mold 2 drives blank, mandrel 7 and dummy block 3 to move in recipient 4.At the second end of recipient 4, namely recipient 4 is away from one end of the pulse power 1, extrudes quiet mould and recipient 4 removably links together, extrude the resistive module 5 of quiet mould and mandrel 7 be according to processing after tubing design.
The conductive module 6 extruding quiet mould is wrapped in the outside of resistive module 5.Conductive module 6 adopts easy conductive material, in a preferred embodiment of the present invention, selects copper to make conductive module.Resistive module 5 adopts resistance material, in a preferred embodiment of the present invention, selects iron to make resistive module.Conductive module 6 is connected by wire with the positive pole of the pulse power 1.
Resistive module 5 is annular column structures.At the second end of recipient 4, the internal diameter of resistive module 5 and the internal diameter of recipient 4 match.And from the second end of recipient 4, the inner surface of resistive module 5 is to mandrel 7 uniform pitch, until arrive resistive module 5 when the one end away from recipient 4, the internal diameter of resistive module 5 and the tubing after processing match.
In a preferred embodiment of the present invention, dummy block 3, movable extrusion mold 2 and recipient 4 adopt insulating materials manufacture.
In a preferred embodiment of the present invention, mandrel 7 adopts easy conductive material.
The electric current that the pulse power provides selects according to the material of blank.
In a preferred embodiment of the present invention, by TiAl alloy as blank to be processed, prepare that external diameter is 90mm, wall thickness is the tubing of 20mm:
First, the design extruding resistive module 5 of quiet mould and mandrel 7, resistive module 5 is designed to 90mm away from the internal diameter of one end of recipient 4, and the external diameter of mandrel 7 is 70mm.In the present embodiment, the resistive module 5 large resistance material of selecting FeCrAl alloy such.
Secondly, according to blank TiAl alloy to be processed, arrange the parameter of the pulse power 1: frequency is 1000HZ, output waveform is square waveform, and peak point current is 7000A, and pulsewidth is 40 μ s, and dutycycle is 10%.
Then, opening power, puts into extrusion barrel 4 by blank to be processed, and start movable extrusion mold 2 and promote dummy block 3 extrusion billet, the movement velocity of movable extrusion mold 2 is 10mm/s.
Finally, at extruding Jing Mochu, electric current can produce a large amount of heats when conductive module 6 and resistive module 5.When blank is by resistive module 5, heat makes blank to be processed more easily be out of shape on the one hand, electric current is very large by the current density near part blank, particularly resistive module 5 on the other hand, and consequent electro plasticity effect makes the mouldability of blank greatly improve.When movable extrusion mold 2 promotes dummy block 3, and when all being extruded by blank, namely tubing prepared.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that the ordinary skill of this area just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technical staff in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (4)
1. an electro plasticity tube extrusion shaped device, is characterized in that, comprises mandrel, movable extrusion mold, dummy block, recipient, the quiet mould of extruding and the pulse power;
Described mandrel and described dummy block are fixed together;
Described recipient is the tubular structure of both ends open, at the first end of described recipient, blank, described movable extrusion mold, described dummy block and described mandrel put into described recipient by the opening of the first end of described recipient, and described movable extrusion mold drives described dummy block and the motion of described mandrel; Second end and the quiet mould of described extruding of described recipient removably link together;
The quiet mould of described extruding comprises resistive module and conductive module, and described conductive module is wrapped in the outside of described resistive module;
Described resistive module is an annular column structure, the internal diameter of internal diameter and described recipient that described resistive module is connected one end with described recipient matches, and from the second end of described recipient, the inner surface of described resistive module is to described mandrel uniform pitch;
The positive pole of the described pulse power is connected with the described conductive module wire of the quiet mould of described extruding, and the negative pole of the described pulse power is connected with described mandrel wire by described movable extrusion mold;
Wherein, described dummy block, described movable extrusion mold and described recipient insulating materials are made; Described dummy block be hollow, described mandrel is fixedly connected with by screw thread or snap close with described dummy block;
Described movable extrusion mold is hollow, and described mandrel is connected with the cathode conductor of the described pulse power with the hollow space of described movable extrusion mold by the hollow space of described dummy block; Described mandrel adopts easy conductive material;
Described conductive module adopts conductive material to make; Described resistive module adopts resistance material to make.
2. a kind of electro plasticity tube extrusion shaped device as claimed in claim 1, wherein, the electric current that the described pulse power provides is according to slab selection.
3. a kind of electro plasticity tube extrusion shaped device as claimed in claim 1, wherein, described resistive module be according to processing after tubing design, described resistive module away from described recipient one end internal diameter with processing after tubing matching.
4. a kind of electro plasticity tube extrusion shaped device as claimed in claim 1, wherein, the external diameter of described mandrel and the tubing after processing match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310626925.2A CN103624098B (en) | 2013-11-28 | 2013-11-28 | A kind of electro plasticity tube extrusion shaped device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310626925.2A CN103624098B (en) | 2013-11-28 | 2013-11-28 | A kind of electro plasticity tube extrusion shaped device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103624098A CN103624098A (en) | 2014-03-12 |
| CN103624098B true CN103624098B (en) | 2015-11-25 |
Family
ID=50205753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310626925.2A Expired - Fee Related CN103624098B (en) | 2013-11-28 | 2013-11-28 | A kind of electro plasticity tube extrusion shaped device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103624098B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538886B (en) * | 2019-09-26 | 2021-05-25 | 西安理工大学 | Magnesium alloy wire electro-plastic processing extrusion die and extrusion method |
| CN111940529B (en) * | 2020-08-31 | 2021-06-25 | 西北有色金属研究院 | Nickel-rich nickel-titanium intermetallic compound bar extrusion device and forming method |
| CN116288189A (en) * | 2023-03-29 | 2023-06-23 | 洛阳汇晶新材料科技有限公司 | Rotary target extrusion equipment and binding method of rotary target and back tube |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191162A (en) * | 1997-02-18 | 1998-08-26 | 熊中实 | Process and apparatus for locally heating extrusion of profile cross-section steel |
| CN2715873Y (en) * | 2004-08-04 | 2005-08-10 | 冉茂海 | Tool and mould for seamless extrusion of aluminium pipe |
| US20050248063A1 (en) * | 2004-05-10 | 2005-11-10 | The Japan Steel Works, Ltd. | Method and apparatus for heating plastic extruding die |
| CN101670385A (en) * | 2009-08-31 | 2010-03-17 | 哈尔滨工业大学 | Pulse current assisted extrusion forming device and extrusion forming method |
| CN101758102A (en) * | 2010-03-15 | 2010-06-30 | 北京机电研究所 | Mold for extruding and forming thick-walled seamless steel pipes |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63174716A (en) * | 1987-01-12 | 1988-07-19 | Furukawa Electric Co Ltd:The | Wire rod manufacturing device |
| JP2551614B2 (en) * | 1988-02-15 | 1996-11-06 | 株式会社クボタ | Cylindrical body manufacturing method |
| JPH11239815A (en) * | 1997-12-24 | 1999-09-07 | Hitachi Cable Ltd | Manufacture of metallic tube by extrusion |
-
2013
- 2013-11-28 CN CN201310626925.2A patent/CN103624098B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191162A (en) * | 1997-02-18 | 1998-08-26 | 熊中实 | Process and apparatus for locally heating extrusion of profile cross-section steel |
| US20050248063A1 (en) * | 2004-05-10 | 2005-11-10 | The Japan Steel Works, Ltd. | Method and apparatus for heating plastic extruding die |
| CN2715873Y (en) * | 2004-08-04 | 2005-08-10 | 冉茂海 | Tool and mould for seamless extrusion of aluminium pipe |
| CN101670385A (en) * | 2009-08-31 | 2010-03-17 | 哈尔滨工业大学 | Pulse current assisted extrusion forming device and extrusion forming method |
| CN101758102A (en) * | 2010-03-15 | 2010-06-30 | 北京机电研究所 | Mold for extruding and forming thick-walled seamless steel pipes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103624098A (en) | 2014-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104162555B (en) | A kind of Semi-Solid Thixoforming-flow combined shaping method | |
| CN106734429A (en) | A kind of aero titanium alloy 3D free bend warm forming devices and manufacturing process | |
| CN104259272B (en) | A kind of eddy-current heating stretch wrap forming device for aircraft section bar | |
| CN103406415B (en) | High-strength steel elongated structural elements electric current assists Rapid Thermal building mortion and method | |
| CN103624098B (en) | A kind of electro plasticity tube extrusion shaped device | |
| CN106694681A (en) | Electromagnetic forming device and method of metal pipe | |
| CN101537435B (en) | Dieless drawing forming process for conical metal pipe | |
| CN105047356A (en) | Solenoid coil for magnetic pulse forming | |
| CN104624693A (en) | Bidirectional extrusion mould and extrusion moulding method for double-layer metal plate and strip or sectional material | |
| CN103611754B (en) | A kind of electric pulse assists tubing processing unit (plant) | |
| CN105170766A (en) | Magnetic collector for magnetic pulse forming | |
| CN104673988A (en) | Induction heating annealing machine tool | |
| CN104668892B (en) | Helicopter closed-up pull rod processing technology | |
| CN104384701A (en) | Magnesium alloy/carbon steel pipe composite connection method based on induction heating and electromagnetic forming | |
| CN101069901A (en) | Copper alloy continuous extrusion method and special apparatus | |
| CN115608784A (en) | Large length-diameter ratio heterogeneous metal composite thin-walled tube progressive skew rolling composite equipment and method thereof | |
| CN101631402B (en) | Multi-section medium frequency heating method for pipe expanding set and device thereof | |
| CN209393743U (en) | A kind of hot extrusion shaping mold of metal composite pipe | |
| CN104551545A (en) | Strain-induced semi-solid forming device and process for fine-grained bearing pad | |
| CN115608900B (en) | Metal clad material wave-flat radial forging compound equipment and method thereof | |
| CN105047351A (en) | Plate coil for magnetic pulse forming | |
| CN203435169U (en) | Heating pipe special for hot mould | |
| CN209901962U (en) | Variable-frequency induction gradient heating system for heating before metal bar extrusion | |
| CN206763762U (en) | A kind of non-crystaline amorphous metal building mortion based on Lorentz force | |
| CN201241177Y (en) | Refusion heating device for aluminum alloy thixotropy machining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20151125 Termination date: 20181128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |