CN108787765A - A kind of method and apparatus of laser assisted non-mould drawing forming - Google Patents
A kind of method and apparatus of laser assisted non-mould drawing forming Download PDFInfo
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- CN108787765A CN108787765A CN201810358373.4A CN201810358373A CN108787765A CN 108787765 A CN108787765 A CN 108787765A CN 201810358373 A CN201810358373 A CN 201810358373A CN 108787765 A CN108787765 A CN 108787765A
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- Prior art keywords
- wire
- laser
- wheel
- drawing forming
- traction wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C9/00—Cooling, heating or lubricating drawing material
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- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
The present invention relates to a kind of wire drawing manufacturing process and devices, refer in particular to a kind of method and apparatus of laser assisted non-mould drawing forming.Wire to be processed is placed on pending area；The angular speed that feed wheel is controlled by controller controls the feed speed of wire；When entering wire positioning and protective device after wire is by feed wheel, rapid irradiance heating is carried out to wire using laser beam, material is made to reach deformation temperature range；Wire after heating enters traction wheel, and the angular speed that traction wheel is controlled by controller controls the hauling speed of wire；The wire drawing forming of wire is completed repeatedly.The present invention realizes high efficiency, without friction, the processing of unlubricated non-mould drawing.Laser using high-precision, high flexibility is used as heat source, can control time and the input of space heat well, avoid in wire drawing process being broken caused by temperature deviation.Optimize microscopic structure in drawing process simultaneously, improves the comprehensive mechanical mechanical property of wire.
Description
Technical field
The present invention relates to a kind of wire drawing manufacturing process and devices, and in particular to a kind of side of laser assisted non-mould drawing forming
Method and device.
Background technology
High-strength alloy silk material is industrially applied very extensive, such as tungsten alloy wire is widely used in electric light source and electronics
The industrial circles such as pipe.Diameter is only that 24 μm of Nitinol silk material is widely used in nuclear fusion, rotary machine, magnetic-levitation train, superconduction
Energy-storage system, Magneto separate, magnetic medical treatment, human body NMR imaging and electron microscope etc..Currently, both at home and abroad to alloy wire
Main machining method is drawing process.Wire drawing (Wire Drawing) is a kind of metal working process.In metal-pressed machine,
Metal is set to be forced through mold under external force, metal cross-sectional area is compressed, and obtains required cross-sectional area shape
It is known as metal wire-drawing technique with the technology processing method of size.It is set to change shape, the tool of size is known as wire drawing die.In drawing
In the process, wire drawing die bears larger frictional force, pressure and pulling force；Wire drawing die generally uses sintered carbide die or diamond die,
Cost is higher；Due to the presence of friction, aggravates stress and deformation uneven distribution in drawing process, the resistance of deformation of metal is made to increase
Add, reduces the service life of mold and the surface quality of product；If processing hardening mistake can be made by improving deformation temperature when drawing
Journey weakens, and metal deformation resistance reduces, and pulling capacity reduces, but since the raising of temperature may also reduce lubricant greasy property,
And cause frictional force to increase, deformation force increase, therefore when drawing deformable material the more difficult determination of best deformation temperature.
Laser itself has many advantages, such as that heating speed fast, temperature and energy hole be accurate, heating region is concentrated.Wire drawing at present
Heating source used by processing, such as induction coil, resistance, heating tank.But the temperature and time of these heating sources is unable to get
It accurately controls, lacks necessary control time and the input of space heat, and then the surface quality of plastic metal wire is caused to become
Difference, geometry is inaccurate and longer production cycle.In addition air oxidation can form cleat network in wire surface,
To reduce the draftability of wire, and cause further wire drawing difficult.
Invention content
An object of the present invention, to solve the above-mentioned problems, the present invention propose a kind of laser assisted non-mould drawing at
The method of shape, includes the following steps：
1) it is d by cross-sectional diameter to be processed1Wire be placed on pending area.
2) angular speed that feed wheel is controlled by controller controls the feed speed V of wire1。
3) enter wire positioning after wire is by feed wheel and when protective device, using laser beam to wire into
Row rapid irradiance heats, and material is made to reach deformation temperature range；It is filled with protective gas simultaneously, prevents wire surface from aoxidizing；
4) wire after heating enters traction wheel, and the angular speed that traction wheel is controlled by controller controls wire
Hauling speed V2, it is d to obtain cross-sectional diameter2Wire, wherein V2> V1, and V1×d1 2=V2×d2 2。
5) the wire drawing forming of wire is completed repeatedly.
The two of the object of the invention provide a kind of device of laser assisted non-mould drawing forming, it is characterised in that：Including control
Device processed, feed wheel, feed wheel control motor, traction wheel, traction wheel control motor, pressure wheel, wire positioning and protective device,
Laser, the feed wheel control motor by feed wheel and control its angular speed, and the traction wheel controls motor by traction wheel
Its angular speed is controlled, between feed wheel and traction wheel, wire is fixed for the wire positioning and protective device and laser
Position and protective device are located at right over laser, and the laser beam of laser is that wire is passed through to position and protect in a perpendicular direction
In wire surface, the controller controls motor and traction wheel control motor electricity with feed wheel respectively for the upper surface irradiation of device
Connection.
The laser is Nd：YAG laser, circular light spot are converted to elliptical spot by cylindrical lens.
The length and width of the elliptical spot determined by the diameter of wire, can with laser beam elliptical spot
It covers subject to wire.
The width of the laser elliptical spot is more than the diameter of wire, and the length direction of wire and laser are ellipse
The long overlapping of axles of circular light spot, as shown in Figure 5.
Wire positioning and protective device are made of top half and lower half portion, including optical window, aluminium chassis,
Cavity, wire locating slot and gas atmosphere inlet, the optical window are located under top half upper surface and lower half portion
Surface, the aluminium chassis constitute device housing frame, the cavity be located at device middle section and with wire locating slot and guarantor
Shield gas access is connected.
The gas is inert nitrogen gas, and wire surface aoxidizes in order to prevent.
Advantageous effect of the present invention：The present invention combines laser to heat when non-mould drawing is processed, when wire passes through feed wheel
When entering wire positioning and protective device afterwards, metal is heated using laser beam, the wire after heating enters
Traction wheel passes through the wire after being processed after traction wheel.The present invention realizes high efficiency, without friction, unlubricated no die drawing
Silk processing.Laser using high-precision, high flexibility is used as heat source, control time and space heat can input, keep away well
Exempt from fracture caused by temperature deviation in wire drawing process.Optimize microscopic structure in drawing process simultaneously, improves metal
The comprehensive mechanical mechanical property of silk.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to example or existing
Attached drawing is briefly described needed in technology description.
Fig. 1 is laser assisted non-mould drawing process schematic of the present invention.
Fig. 2 is processing and transitional region during laser assisted non-mould drawing.
Fig. 3 is wire positioning and protective device.
Fig. 4 is the microstructure of common non-mould drawing and wire surface after laser assisted non-mould drawing.(a) it is common nothing
The microstructure of wire surface after die wire drawing；(b) it is the microstructure of wire surface after laser assisted non-mould drawing.
Position relationship schematic diagrams of the Fig. 5 between wire and laser beam
Wherein 1 is controller, and 2 be feed wheel, and 3 be traction wheel, and 4 be feed wheel control motor, and 5 be traction wheel control electricity
Machine, 6 be wire positioning and protective device, and 7 be pressure wheel, and 8 be laser beam, and 9 be wire, and 10 be optical window, and 11 be aluminium
Frame, 12 be cavity, and 13 be wire locating slot, and 14 be gas atmosphere inlet.
Specific implementation mode
The specific implementation mode of the present invention is described in detail with reference to the accompanying drawings and examples, but the present invention should not be only
It is limited to embodiment.
Embodiment
Referring to Figures 1 and 2, the present embodiment is related to electric arc silk filling and rolls compound increasing material manufacturing method, includes the following steps：
1) it is d by cross-sectional diameter to be processed1The stainless steel metal wire 9 of=4mm is placed on pending area.
2) feed wheel is controlled by controller 1 and controls motor 4 to control the angular speed of feed wheel 2, make stainless steel metal wire 9
Feed speed V1=40mm/min.
3) enter wire positioning after stainless steel metal wire 9 is by feed wheel 2 and when protective device 6, using passing through column
The elliptical spot laser beam 8 of face lens conversion carries out rapid irradiance heating to stainless steel metal wire 9, and heating temperature is 880 DEG C,
Material is set to reach deformation temperature range；Wherein ensure that the width of laser elliptical spot is more than the diameter of wire 9, and metal
Silk 9 is located at the center in 8 width direction of laser beam.
4) stainless steel metal wire 9 after heating enters traction wheel 3, and controlling traction wheel by controller 1 controls motor 5
To control the angular speed of traction wheel 3, make the hauling speed V of wire 92=80mm/min, it is d to obtain cross-sectional diameter2=
The wire 9 of 2.87mm (theoretical value 2.83mm).
5) the wire drawing forming of wire is completed repeatedly.
Wherein d2=d1(V1/V2) 1/2=4 × (40 ÷ 80) 1/2 ≈ 2.83mm
Fig. 4 is from the microstructure of wire surface after common non-mould drawing and laser assisted non-mould drawing, wherein (a) is
The microstructure of wire surface after common non-mould drawing, it can be seen that the wire after wire drawing forming generates many micro- on surface
Crackle, and crystallite dimension is larger and is unevenly distributed.(b) it is the microstructure of wire surface after laser assisted non-mould drawing,
It can be seen that after introducing laser as heat source, wire surface micro-crack is very significantly improved, and crystallite dimension obtains centainly
Refinement and distribution uniform.
Following technical scheme can be used to reach in the second object of the present invention：
A kind of device of laser assisted non-mould drawing forming, it is characterised in that：Including controller 1, feed wheel 2, feed wheel
Control motor 4, traction wheel 3, traction wheel control motor 5, pressure wheel 7, wire positioning and protective device 6, laser, the gold
It includes a gas atmosphere inlet to belong to silk positioning and protective device 6, and the feed wheel 2 controls motor 4 by feed wheel and controls it
Angular speed, the traction wheel 3 control motor 5 by traction wheel and control its angular speed, and the laser is located at feed wheel 2 and traction
Between wheel 3, the controller 1 controls motor 4 with the feed wheel and traction wheel control motor 5 is electrically connected.
At work, wire 9 to be processed is placed on pending area first, feed wheel is controlled by controller 1
Motor 4 is controlled to control the angular speed of feed wheel 2, to control the feed speed of wire 9.When wire 9 passes through feed wheel 2
After enter wire positioning and when protective device 6, using the elliptical spot laser beam 8 converted by cylindrical lens to metal
Silk 9 carries out rapid irradiance heating, while being filled with nitrogen from gas atmosphere inlet, prevents 9 surface oxidation of wire, material is made to reach
Deformation temperature range, wherein ensure that the width of laser elliptical spot is more than the diameter of wire 9, and wire 9 is positioned at sharp
Center in 8 width direction of light beam.Wire 9 after heating enters traction wheel 3, is controlled and is drawn by controller 1
Wheel control motor 5 is to control the angular speed of traction wheel 3, and to control the hauling speed of wire 9, wire 9 passes through traction wheel 3
Wire drawing forming is completed afterwards.Laser is combined to heat when non-mould drawing is processed, it is fixed into wire after wire is by feed wheel
When position and protective device, metal is heated using laser beam, the wire after heating enters traction wheel, passes through traction
Wire after being processed after wheel.Using high-precision, high flexibility laser as heat source, can well control time and
Space heat input avoids fracture caused by temperature deviation in wire drawing process.Optimize in drawing process simultaneously micro-
Tissue, improves the comprehensive mechanical mechanical property of wire.
It is above disclosed to be only a preferred embodiment of the present invention, the power of the present invention cannot be limited with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (8)
1. a kind of device of laser assisted non-mould drawing forming, it is characterised in that：Described device include controller, feed wheel, into
To wheel control motor, traction wheel, traction wheel control motor, pressure wheel, wire positioning and protective device and laser, it is described into
Motor is controlled by feed wheel to wheel and controls its angular speed, the traction wheel controls motor by traction wheel and controls its angular speed,
The wire positioning and protective device and laser are between feed wheel and traction wheel, wire positioning and protective device position
Right over laser, the laser beam of laser is the upper surface spoke for passing through wire positioning and protective device in a perpendicular direction
Wire surface is impinged upon, the controller controls motor with feed wheel respectively and traction wheel control motor is electrically connected.
2. a kind of device of laser assisted non-mould drawing forming as described in claim 1, it is characterised in that：The laser is
Nd：The circular light spot of YAG laser, the laser beam of laser is converted to elliptical spot by cylindrical lens.
3. a kind of device of laser assisted non-mould drawing forming as claimed in claim 2, it is characterised in that：The ellipse-shaped light
The length and width of spot is determined that laser beam elliptical spot of being subject to can cover wire by the diameter of wire.
4. a kind of device of laser assisted non-mould drawing forming as claimed in claim 2, it is characterised in that：The laser beam
The width of elliptical spot is more than the diameter of wire, and the long axis weight of the length direction of wire and laser elliptical spot
It closes.
5. a kind of device of laser assisted non-mould drawing forming as described in claim 1, it is characterised in that：The wire is fixed
Position and protective device be made of top half and lower half portion, including optical window, aluminium chassis, cavity, wire locating slot and
Gas atmosphere inlet, the optical window are located at top half upper surface and lower half portion lower surface, the aluminum frame structure at
Device housing frame, the cavity are located at device middle section and are connected with wire locating slot and gas atmosphere inlet.
6. a kind of device of laser assisted non-mould drawing forming as described in claim 1, it is characterised in that：The protective gas
It is wire surface oxidation in order to prevent for inert nitrogen gas.
7. the method for carrying out laser assisted non-mould drawing forming using device as described in claim 1, which is characterized in that specific step
It is rapid as follows：
1) it is d by cross-sectional diameter to be processed1Wire be placed on pending area；
2) angular speed that feed wheel is controlled by controller controls the feed speed V of wire1；
3) when entering wire positioning and protective device after wire is by feed wheel, wire is carried out using laser beam fast
Speed irradiation heating, makes material reach deformation temperature range；It is filled with protective gas simultaneously, prevents wire surface from aoxidizing；
4) wire after heating enters traction wheel, and the angular speed that traction wheel is controlled by controller controls leading for wire
Draw speed V2, it is d to obtain cross-sectional diameter2Wire；
5) the wire drawing forming of wire is completed repeatedly.
8. the method for claim 7, which is characterized in that V2> V1, and V1×d1 2=V2×d2 2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810358373.4A CN108787765A (en) | 2018-04-20 | 2018-04-20 | A kind of method and apparatus of laser assisted non-mould drawing forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810358373.4A CN108787765A (en) | 2018-04-20 | 2018-04-20 | A kind of method and apparatus of laser assisted non-mould drawing forming |
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| CN108787765A true CN108787765A (en) | 2018-11-13 |
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| CN201810358373.4A Pending CN108787765A (en) | 2018-04-20 | 2018-04-20 | A kind of method and apparatus of laser assisted non-mould drawing forming |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798680A (en) * | 2020-06-15 | 2021-12-17 | 大族激光科技产业集团股份有限公司 | Laser drawing method and laser drawing device |
| CN114247765A (en) * | 2021-12-24 | 2022-03-29 | 哈尔滨工业大学（威海） | Metal micro-wire heating method and device |
| CN114753038A (en) * | 2022-03-15 | 2022-07-15 | 湖南惠同新材料股份有限公司 | Continuous shaping process and equipment for fiber plied yarn |
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| CN101249520A (en) * | 2008-03-28 | 2008-08-27 | 沈阳理工大学 | Non-mould drawing forming method and apparatus |
| CN102133582A (en) * | 2011-05-04 | 2011-07-27 | 北京科技大学 | Mold/non-mode combined pulling process and device |
| CN104438387A (en) * | 2014-11-13 | 2015-03-25 | 北京科技大学 | Method for improving metal non-restraint plastic forming stability |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050255716A1 (en) * | 2004-04-28 | 2005-11-17 | Semiconductor Energy Laboratory Co., Ltd. | Laser irradiation method and method for manufacturing semiconductor device using the same |
| CN101020197A (en) * | 2006-10-09 | 2007-08-22 | 北京科技大学 | Intelligent no-mold drawing formation apparatus and process |
| CN101249520A (en) * | 2008-03-28 | 2008-08-27 | 沈阳理工大学 | Non-mould drawing forming method and apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798680A (en) * | 2020-06-15 | 2021-12-17 | 大族激光科技产业集团股份有限公司 | Laser drawing method and laser drawing device |
| CN113798680B (en) * | 2020-06-15 | 2023-06-23 | 大族激光科技产业集团股份有限公司 | Laser drawing method and laser drawing device |
| CN114247765A (en) * | 2021-12-24 | 2022-03-29 | 哈尔滨工业大学（威海） | Metal micro-wire heating method and device |
| CN114753038A (en) * | 2022-03-15 | 2022-07-15 | 湖南惠同新材料股份有限公司 | Continuous shaping process and equipment for fiber plied yarn |
| CN114753038B (en) * | 2022-03-15 | 2023-08-11 | 湖南惠同新材料股份有限公司 | Continuous shaping process and equipment for fiber strands |
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Application publication date: 20181113 |