CN102784979A - Metal wire for fast-wire-walking electrical discharge machining and manufacture method thereof - Google Patents
Metal wire for fast-wire-walking electrical discharge machining and manufacture method thereof Download PDFInfo
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- CN102784979A CN102784979A CN201110131290XA CN201110131290A CN102784979A CN 102784979 A CN102784979 A CN 102784979A CN 201110131290X A CN201110131290X A CN 201110131290XA CN 201110131290 A CN201110131290 A CN 201110131290A CN 102784979 A CN102784979 A CN 102784979A
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Abstract
The invention provides a metal wire for fast-wire-walking electrical discharge machining and a manufacture method thereof, wherein the components of the metal wire include Zn, Al, Cu, Mn, Si and Mo. The invention further discloses the manufacture method of the metal wire for fast-wire-walking electrical discharge machining. The manufacture method is characterized by comprising the following processing steps: (1) feeding materials into a vacuum induction melting furnace according to components and compositions, and melting the materials to obtain molten metal liquid; (2) guiding the molten metal liquid into a continuous casting device to manufacture alloy wire blank; and (3) performing cooling stretching, on-line annealing and stress relief annealing before product finishing on the alloy wire blank to obtain the metal wire. The corrosion resistance and cutting performance of the metal wire in working fluid are improved, and the metal wire is stable in tensile strength and good in electrical conductivity.
Description
Technical field
The present invention relates to a kind of spark machined and use wire, more specifically, the present invention relates to a kind of thread feed electric spark processing of hurrying up and use wire.
Background technology
Wire-cut Electrical Discharge Machining is a kind of through producing electric discharge phenomena between wire and the cutting object, and fusion cuts off the processing method of cutting object, is particularly suitable for the processing method of complicated shape.Wire-cut Electrical Discharge Machining has that allowance is little, machining accuracy is high, with short production cycle, outstanding advantage such as processing cost is low.
Use wire for Wire-cut Electrical Discharge Machining, it is desirable to it and have that process velocity is fast, tensile strength is high, toughness is strong, good conductivity, characteristic such as cheap.Existing Wire-cut Electrical Discharge Machining can be divided into two big types with wire, and the thread feed electric spark line of promptly hurrying up cutting is used wire with the wire and the thread feed electric spark line cutting of being careful.The thread feed electric spark line cutting of hurrying up that prior art is known has molybdenum filament, tungsten filament, tungsten silk etc. with wire; Through the workpiece of fast wire wire processing, its precision, fineness are all poor.When to the precision of processing parts, when fineness is had relatively high expectations, such as the parts of precision die, precision instrument, the demanding part of surface quality etc., the thread feed electric spark line of hurrying up cutting can not be satisfied its instructions for use.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of thread feed electric spark processing of hurrying up to use wire just; In the hope of when increasing Wire-cut Electrical Discharge Machining speed wiry, can guarantee that the Surface Machining roughness of precision die, precision instrument is low and described wire cost is cheap relatively.
In order to solve the problems of the technologies described above, the technical scheme that the present invention adopted is: wire is used in a kind of thread feed electric spark line cutting of hurrying up, and it is characterized in that described component wiry comprises Zn, Al, Cu, Mn, Si and Mo.
Preferably; The present invention provides a kind of thread feed electric spark line cutting of hurrying up to use wire, it is characterized in that described component wiry and ratio are respectively: Zn 23%-25%, Al 25%-28%; Cu 5.0%-8.0%; Mn 0.2-0.8%, Si 0.20-0.60%, surplus is molybdenum and unavoidable impurities.
In addition, the invention also discloses the above-mentioned thread feed electric spark line cutting of hurrying up and use preparation method wiry, it is characterized in that comprising following processing step:
(1) in vacuum induction melting furnace, presses composition and form reinforcedly, and make its fusing, obtain melt metal liquid;
(2) melt metal liquid is imported in the continuous casting installation for casting preparation alloy wire base;
(3) stress relief annealing of alloy preform material before cooling stretching and online annealing and finished product processed the wire that diameter is 0.20-0.25mm.
Wherein, in described step (1), preferred fusion temperature is 1200-1300 ℃, and temperature retention time is 10-200 minute; Preferred, described fusion temperature is 1200-1250 ℃, and temperature retention time is 20-100 minute.
Wherein, in described step (2), preferred, casting temperature is 1000-1150 ℃, and the crystallizer cooling water pressure is 0.6-0.9MPa during continuous casting, and cold in-water temperature is 5-30 ℃, and casting speed is 1200-1300mm/min, obtains the alloy preform material; Preferred, casting temperature is 1000-1100 ℃, and the crystallizer cooling water pressure is 0.7-0.8MPa during continuous casting.
Wherein, in described step (3), described online annealing temperature is 650-700 ℃, and annealing time is 5-50 second, so that crystallization again takes place the wire rod that alloy material line base obtains after stretched, is convenient to follow-up stretch process.
Wherein, in described step (3), described stress relief annealing temperature is 250-350 ℃, and corresponding annealing time is 10-50 second, to eliminate the machining stress of final wire finished product.
The existing thread feed electric spark wire of hurrying up is compared in the present invention and the prior art, has following remarkable advantage and beneficial effect:
(1) the molybdenum alloy wire that the application adopted is compared with traditional molybdenum silk, has improved the corrosion resistance of wire in working fluid, and has also significantly improved its cutting ability, has particularly reduced the surface roughness after the processing significantly.
(2) its crystal property of wire of employing the application's molybdenum alloy manufacturing is good, have stable tensile strength, and electric conductivity is good.
(3) processability of tinsel base of the present invention is good, process solutions, thus reduced the remarkable preparation cost wiry that reduced.
Description of drawings
Fig. 1 processes with processing sketch map wiry for the thread feed electric spark line of hurrying up.
Fig. 2 processes with manufacturing process sketch map wiry for the thread feed electric spark of hurrying up.
The specific embodiment
Hereinafter will combine concrete embodiment that technical scheme of the present invention is done further detailed explanation.
Prepare the alloy raw material (can be the high pure raw material of bulk or powder) that adds up to 100Kg by following quality, wherein, Zn:23.0Kg; Al:25.0Kg; Cu:5.0Kg; Mn:0.20Kg; Si:0.20Kg; Mo with surplus;
The alloy raw material of preparation is put into induction melting furnace make its fusing, fusion temperature is 1300 ℃, and temperature retention time is 100 minutes;
The alloy liquid of fusion is imported in the horizontal casting stove; Adopt continuous cast method to prepare the alloy wire base; Casting parameters is: casting temperature: 1100 ℃, the crystallizer cooling water pressure is 0.7～0.8MPa during continuous casting, cold in-water temperature 5-30 ℃; The Inlet and outlet water temperature difference is 5～15 ℃, and casting speed is 1300mm/min;
With prepared alloy preform through multiple tracks cold stretch and online annealing, annealing temperature: 700 ℃, annealing time: 10 seconds; And the stress relief annealing before the finished product, annealing temperature: 350 ℃, annealing time: 25 seconds; The thread feed electric spark processing of hurrying up that must prepare uses diameter wiry to be 0.25mm.The chemical composition of described wire finished product with consist of: Zn:23.0%; Al:25.0%; Cu:5.0%; Mn:0.20%; Si:0.20%; Mo with surplus.
The tensile strength of test wire and percentage elongation on the universal electrical tensilometer; Adopt its conductance of TX-300A intelligence electric lead resistivity measurement appearance test; Adopt the surface roughness after tracer method is measured processing, test described Wire EDM speed wiry as workpiece with No. 45 steel.
Prepare the alloy raw material (can be the high pure raw material of bulk or powder) that adds up to 100Kg by following quality, wherein, Zn:23.0Kg; Al:25.0Kg; Cu:8.0Kg; Mn:0.80Kg; Si:0.60Kg; Mo with surplus;
The alloy raw material of preparation is put into induction melting furnace make its fusing, fusion temperature is 1250 ℃, and temperature retention time is 100 minutes;
The alloy liquid of fusion is imported in the horizontal casting stove; Adopt continuous cast method to prepare the alloy wire base; Casting parameters is: casting temperature: 1050 ℃, the crystallizer cooling water pressure is 0.7～0.8MPa during continuous casting, cold in-water temperature 5-30 ℃; The Inlet and outlet water temperature difference is 5～15 ℃, and casting speed is 1250mm/min;
With prepared alloy preform through multiple tracks cold stretch and online annealing, annealing temperature: 680 ℃, annealing time: 25 seconds; And the stress relief annealing before the finished product, annealing temperature: 300 ℃, annealing time: 25 seconds; The thread feed electric spark processing of hurrying up that must prepare uses diameter wiry to be 0.25mm.The chemical composition of described wire finished product with consist of: Zn:23.0%; Al:25.0%; Cu:8.0%; Mn:0.80%; Si:0.60%; Mo with surplus.
The tensile strength of test wire and percentage elongation on the universal electrical tensilometer; Adopt its conductance of TX-300A intelligence electric lead resistivity measurement appearance test; Adopt the surface roughness after tracer method is measured processing, test described Wire EDM speed wiry as workpiece with No. 45 steel.
Embodiment 3
Prepare the alloy raw material (can be the high pure raw material of bulk or powder) that adds up to 100Kg by following quality, wherein, Zn:25.0Kg; Al:28.0Kg; Cu:8.0Kg; Mn:0.80Kg; Si:0.60Kg; Mo with surplus;
The alloy raw material of preparation is put into induction melting furnace make its fusing, fusion temperature is 1200 ℃, and temperature retention time is 50 minutes;
The alloy liquid of fusion is imported in the horizontal casting stove; Adopt continuous cast method to prepare the alloy wire base; Casting parameters is: casting temperature: 1000 ℃, the crystallizer cooling water pressure is 0.7～0.8MPa during continuous casting, cold in-water temperature 5-30 ℃; The Inlet and outlet water temperature difference is 5～15 ℃, and casting speed is 1250mm/min;
With prepared alloy preform through multiple tracks cold stretch and online annealing, annealing temperature: 650 ℃, annealing time: 25 seconds; And the stress relief annealing before the finished product, annealing temperature: 250 ℃, annealing time: 25 seconds; The thread feed electric spark processing of hurrying up that must prepare uses diameter wiry to be 0.25mm.The chemical composition of described wire finished product with consist of: Zn:25.0%; Al:28.0%; Cu:8.0%; Mn:0.80%; Si:0.60%; Mo with surplus.
The tensile strength of test wire and percentage elongation on the universal electrical tensilometer; Adopt its conductance of TX-300A intelligence electric lead resistivity measurement appearance test; Adopt the surface roughness after tracer method is measured processing, test described Wire EDM speed wiry as workpiece with No. 45 steel.
Embodiment 4
Prepare the alloy raw material (can be the high pure raw material of bulk or powder) that adds up to 100Kg by following quality, wherein, Zn:25.0Kg; Al:28.0Kg; Cu:5.0Kg; Mn:0.20Kg; Si:0.20Kg; Mo with surplus;
The alloy raw material of preparation is put into induction melting furnace make its fusing, fusion temperature is 1250 ℃, and temperature retention time is 100 minutes;
The alloy liquid of fusion is imported in the horizontal casting stove; Adopt continuous cast method to prepare the alloy wire base; Casting parameters is: casting temperature: 1050 ℃, the crystallizer cooling water pressure is 0.7～0.8MPa during continuous casting, cold in-water temperature 5-30 ℃; The Inlet and outlet water temperature difference is 5～15 ℃, and casting speed is 1250mm/min;
With prepared alloy preform through multiple tracks cold stretch and online annealing, annealing temperature: 625 ℃, annealing time: 20 seconds; And the stress relief annealing before the finished product, annealing temperature: 300 ℃, annealing time: 25 seconds; The thread feed electric spark processing of hurrying up that must prepare uses diameter wiry to be 0.25mm.The chemical composition of described wire finished product with consist of: Zn:25.0%; Al:28.0%; Cu:5.0%; Mn:0.20%; Si:0.20%; Mo with surplus.
The tensile strength of test wire and percentage elongation on the universal electrical tensilometer; Adopt its conductance of TX-300A intelligence electric lead resistivity measurement appearance test; Adopt the surface roughness after tracer method is measured processing, test described Wire EDM speed wiry as workpiece with No. 45 steel.
Embodiment 5
Prepare the alloy raw material (can be the high pure raw material of bulk or powder) that adds up to 100Kg by following quality, wherein, Zn:24.0Kg; Al:26.0Kg; Cu:6.0Kg; Mn:0.50Kg; Si:0.50Kg; Mo with surplus;
The alloy raw material of preparation is put into induction melting furnace make its fusing, fusion temperature is 1250 ℃, and temperature retention time is 80 minutes;
The alloy liquid of fusion is imported in the horizontal casting stove; Adopt continuous cast method to prepare the alloy wire base; Casting parameters is: casting temperature: 1050 ℃, the crystallizer cooling water pressure is 0.7～0.8MPa during continuous casting, cold in-water temperature 5-30 ℃; The Inlet and outlet water temperature difference is 5～15 ℃, and casting speed is 1250mm/min;
With prepared alloy preform through multiple tracks cold stretch and online annealing, annealing temperature: 650 ℃, annealing time: 15 seconds; And the stress relief annealing before the finished product, annealing temperature: 300 ℃, annealing time: 30 seconds; The thread feed electric spark processing of hurrying up that must prepare uses diameter wiry to be 0.25mm.The chemical composition of described wire finished product with consist of: Zn:24.0%; Al:26.0%; Cu:6.0%; Mn:0.50%; Si:0.50%; Mo with surplus.
The tensile strength of test wire and percentage elongation on the universal electrical tensilometer; Adopt its conductance of TX-300A intelligence electric lead resistivity measurement appearance test; Adopt the surface roughness after tracer method is measured processing, test described Wire EDM speed wiry as workpiece with No. 45 steel.
Comparative example 1
Normally used Mo wire in the prior art; This tensile strength wiry and percentage elongation of test on the universal electrical tensilometer; Adopt its conductance of TX-300A intelligence electric lead resistivity measurement appearance test; Adopt the surface roughness after tracer method is measured processing, test described Wire EDM speed wiry as workpiece with No. 45 steel.
The comprehensive mechanical property of table 1 embodiment and comparative example, conductance and spark machined speed
Claims (7)
1. wire is used in the thread feed electric spark processing of hurrying up, and it is characterized in that described component wiry comprises Zn, Al, Cu, Mn, Si and Mo.
2. wire is used in the described thread feed electric spark processing of hurrying up of claim 1, it is characterized in that described component wiry and ratio are respectively: Zn 23%-25%, Al 25%-28%; Cu 5.0%-8.0%; Mn 0.2-0.8%, Si 0.20-0.60%, surplus is molybdenum and unavoidable impurities.
3. claim 1 or the 2 described thread feed electric spark lines of hurrying up cut molybdenum-copper preparation methods wiry, it is characterized in that comprising following processing step:
(1) in vacuum induction melting furnace, presses composition and form reinforcedly, and make its fusing, obtain melt metal liquid;
(2) melt metal liquid is imported in the continuous casting installation for casting preparation alloy wire base;
(3) stress relief annealing of alloy preform material before cooling stretching and online annealing and finished product processed the wire that diameter is 0.20-0.25mm.
4. the described preparation method of claim 3, in described step (1), fusion temperature is 1200-1300 ℃, temperature retention time is 10-200 minute.
5. the described preparation method of claim 3, in described step (2), casting temperature is 1000-1150 ℃, and the crystallizer cooling water pressure is 0.6-0.9MPa during continuous casting, and cold in-water temperature is 5-30 ℃, and casting speed is 1200-1300mm/min.
6. the described preparation method of claim 3, in described step (3), described online annealing temperature is 650-750 ℃, annealing time is 5-50 second.
7. the described preparation method of claim 3, in described step (3), described stress relief annealing temperature is 250-350 ℃, corresponding annealing time is 10-50 second.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110131290XA CN102784979A (en) | 2011-05-20 | 2011-05-20 | Metal wire for fast-wire-walking electrical discharge machining and manufacture method thereof |
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| CN201110131290XA CN102784979A (en) | 2011-05-20 | 2011-05-20 | Metal wire for fast-wire-walking electrical discharge machining and manufacture method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447641A (en) * | 2013-08-30 | 2013-12-18 | 广西锦新科技有限公司 | Low-speed wire cut electrical discharge machining metal wire and preparation method thereof |
| CN105328283A (en) * | 2015-11-16 | 2016-02-17 | 芜湖楚江合金铜材有限公司 | High-precision wire electrode and preparation method thereof |
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| CN1255167A (en) * | 1997-04-18 | 2000-05-31 | 奥林公司 | Grain refined tin brass |
| TW486398B (en) * | 1999-12-09 | 2002-05-11 | Charmilles Technologies | Electrode for machining a piece by electro-erosion and its process for production |
| US6428596B1 (en) * | 2000-11-13 | 2002-08-06 | Concept Alloys, L.L.C. | Multiplex composite powder used in a core for thermal spraying and welding, its method of manufacture and use |
| US20020195427A1 (en) * | 1999-08-06 | 2002-12-26 | The Furukawa Electric Co., Ltd. | High-conductivity electrode wire for wire electric discharge machining |
| CN1604830A (en) * | 2001-12-21 | 2005-04-06 | 瑟莫康柏克特公司 | Wire for high-speed electrical discharge machining |
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2011
- 2011-05-20 CN CN201110131290XA patent/CN102784979A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1255167A (en) * | 1997-04-18 | 2000-05-31 | 奥林公司 | Grain refined tin brass |
| US20020195427A1 (en) * | 1999-08-06 | 2002-12-26 | The Furukawa Electric Co., Ltd. | High-conductivity electrode wire for wire electric discharge machining |
| TW486398B (en) * | 1999-12-09 | 2002-05-11 | Charmilles Technologies | Electrode for machining a piece by electro-erosion and its process for production |
| US6428596B1 (en) * | 2000-11-13 | 2002-08-06 | Concept Alloys, L.L.C. | Multiplex composite powder used in a core for thermal spraying and welding, its method of manufacture and use |
| CN1604830A (en) * | 2001-12-21 | 2005-04-06 | 瑟莫康柏克特公司 | Wire for high-speed electrical discharge machining |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447641A (en) * | 2013-08-30 | 2013-12-18 | 广西锦新科技有限公司 | Low-speed wire cut electrical discharge machining metal wire and preparation method thereof |
| CN105328283A (en) * | 2015-11-16 | 2016-02-17 | 芜湖楚江合金铜材有限公司 | High-precision wire electrode and preparation method thereof |
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Application publication date: 20121121 |