CN102528954B - Method for cutting magnetic material by using diamond wires - Google Patents
Method for cutting magnetic material by using diamond wires Download PDFInfo
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- CN102528954B CN102528954B CN201210030059.6A CN201210030059A CN102528954B CN 102528954 B CN102528954 B CN 102528954B CN 201210030059 A CN201210030059 A CN 201210030059A CN 102528954 B CN102528954 B CN 102528954B
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Abstract
The invention provides a method for cutting a magnetic material by using diamond wires. According to the method, the diamond wires with the wire diameter of between 0.14 and 0.4mm are used for cutting the magnetic material on a multi-wire cutting machine, and the process parameters are that: slot pitches among rollers are between 0.77 and 2.5mm; speed of feeding new wires is between 1 and 7m/min; and the speed of lowering a working table down is between 0.4 and 1.0mm/min. By the method for cutting the magnetic material by using the diamond wires, the cut workpieces are low in cutting loss and are high in output.
Description
Technical field
The present invention relates to magnetic material cutting field, especially, relate to a kind of method with cutting magnetic material by using diamond wires.
Background technology
Magnetic material is widely used in the electronics and information industries such as automobile, household electrical appliances, electronics, computer, communication, network technology, and along with the development of IT industry, market is strong to the demand of magnetic material that can be supporting with components and parts.At present, the cutting method of magnetic material mostly is inner circle patterning method and mortar multi-wire saw method.
Inner circle patterning method employing diamond saw blade cutting magnetic material, can only cut and cut seam greatly by monolithic, and spillage of material is large, and efficiency is low.Mortar multi-wire saw method is seriously polluted, maintenance of equipment cost is high, and service life is short, and cleaning difficulty, cutting powder scrap are difficult to the problems such as recovery.
Summary of the invention
The object of the present invention is to provide a kind of method with cutting magnetic material by using diamond wires, to solve, magnetic material cutting efficiency is low, joint-cutting is large, seriously polluted, maintenance cost high-technology problem.
For achieving the above object, the invention provides a kind of method with cutting magnetic material by using diamond wires, on multi-line cutting machine, adopting line wire diameter is the cutting magnetic material by using diamond wires of 0.14～0.4mm, technological parameter is: roller slot pitch is 0.77～2.5mm, new line feed speed is 1～7m/ minute, and it is 0.4～1.0mm/ minute that workbench moves down speed.
Further, diamond wire tension force is 30～40N.
Further, the Trace speed of diamond wire is 300～600 ms/min.
Further, multi-line cutting machine is BXQ150A type multi-line cutting machine.
The present invention has following beneficial effect:
Method gained workpiece sheet provided by the invention, cutting loss is few, and piece rate is high.While using diamond wire that high-tensile steel wires make matrix to magnetic material cutting experiment, stria is even, and gross thickness tolerance is little, collapses limit and part is few.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to embodiment, the present invention is further detailed explanation.
The specific embodiment
Below in conjunction with embodiment, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Method provided by the invention is using diamond wire as cutting device, be arranged on multi-line cutting machine, magnetic material is cut, and wherein magnetic material refers to the material that can directly or indirectly be produced magnetic material by transition elements zinc, cobalt, nickel and alloy thereof etc., as di-iron trioxide etc.By setting optimum cutting parameter, make the piece rate of magnetic material, cutting loss reach optimum.Also saved for sand system and peripheral heat-exchange system thereof simultaneously, saved cost.
Roller slot pitch refers to the distance that the roller groove by different model limits, and before cutting, according to the thickness requirement of workpiece sheet, is arranged on multi-line cutting machine.
On multi-line cutting machine, selecting wire diameter is the diamond wire saw effect optimum of 0.14～0.4mm.It has been generally acknowledged that thicker its cutting power of diamond wire diameter is stronger, cutting efficiency is higher.But when the discovery diamond wire diameter of the invention is less than 0.4mm, its cutting power is better than the thick diamond wire of wire diameter.The qualification rate of gained workpiece sheet is improved.Employing wire diameter is less than the diamond wire of 0.3mm, can be cost-saving, can prevent again the loss of the material that wire diameter more slightly causes.
If diamond wire diameter is meticulous, easily, in cutting process, cause broken string, affect cutting efficiency, be unsuitable for cutting magnetic material.Magnetic material after cutting is workpiece sheet, and the thickness of workpiece sheet is the wire diameter difference of roller slot pitch and diamond wire used.Selecting corresponding roller slot pitch is 0.77～2.5mm.Coordinate like this diamond wire wire diameter of aforementioned range, the thickness of gained workpiece sheet just can meet the demands.When method provided by the invention is used for cutting the workpiece sheet of this thickness, most effective.The lower mobile Speed Setting that is fixed with the work stage of device to be cut during cutting is 0.4～1.0mm/ minute.If be loaded with the work stage of magnetic material to be cut when cutting, move down excessive velocities, diamond wire is failed to cut magnetic material to estimating position and is just pressed downward, and can increase the tension force of diamond wire, and it is easily ruptured.If work stage moves down speed and crosses slowly, can increase the time of diamond wire in idle running, and lengthen working hours, reduce operating efficiency.
New line feed speed is set as 1～7m/ minute, if new line feed speed is excessively slow, can uses same section of diamond wire saw device due to long-time, and reduce cutting efficiency, increase the number of times of diamond wire fracture, thread-changing only can reduce operating efficiency and increase cost frequently simultaneously.If new line feed speed is too fast, can cause the waste of diamond wire.According to above-mentioned parameter, on multi-line cutting machine, cut magnetic material and can reach the object that improves cutting efficiency, and the qualification rate of gained workpiece sheet can be up to 99%.
Preferably, the tension force of diamond wire is that 30～40N, Trace speed are 300～600m/ minute during cutting.By this, set above-mentioned parameter, can guarantee that diamond wire provides enough cutting forces, can prevent from again causing breaking frequently because pulling force is excessive.The selective rules of Trace speed too.If Trace speed is too fast, the friction of diamond wire is serious, easily fracture, and if Trace speed more slowly, reduced operating efficiency, increased the loss of product.Because magnetic material has magnetic, after cutting, be dissolved in cooling water, be easy to recycle by conventional method.
Above-mentioned optimal process parameter is: diamond wire wire diameter is 0.3mm, and roller slot pitch is 1.5mm, and new line feed speed is 3m/ minute, and it is that 0.8mm/ minute, tension force are 35N that workbench moves down speed.Now there is optimal effectiveness.
Above-mentioned technological parameter is not by limited number of time, to test just availablely, but chooses by inventor is creationary that diamond wire wire diameter solves.
Multi-line cutting machine used can be commercially available all kinds of multi-line cutting machines.Preferred BXQ150A type multi-line cutting machine.
Embodiment
In following examples, material used and instrument are commercially available.
Embodiment 1
Adopt BXQ150A type multi-line cutting machine, the diamond wire that is 0.14mm by wire diameter is mounted to Wire winding shaft from paying out reel order successively, then fixing 3 of 25*25*40mm specification layer of 6 row 4 row magnetic material in work stage.The roller groove of 0.77mm is installed, new line feed speed be 1m/ minute, tension force be 30N, workbench to move down speed be 0.4mm/ minute, adopt bidirectional high speed cabling mode to cut.
Workpiece sheet slice qualification rate after cutting can reach 99%, and be 225 minutes clipping time, and workpiece sheet surface quality is good.The wire diameter loss that detects the diamond wire after cutting device is 5～15um.
Embodiment 2
Adopt BXQ150A type multi-line cutting machine, the diamond wire that is 0.4mm by wire diameter is mounted to Wire winding shaft from paying out reel order successively, then fixing 3 of 25*25*40mm specification layer of 6 row 4 row rubidium Fe-Mn magnetism material in work stage.The roller groove of 2.15mm is installed, new line feed speed be 7m/ minute, tension force be 40N, workbench to move down speed be 1mm/ minute, adopt bidirectional high speed cabling mode to cut.
Workpiece sheet slice qualification rate after cutting can reach 99%, and be 210 minutes clipping time, and workpiece sheet surface quality is good.The wire diameter loss that detects the diamond wire after cutting device is 5～15um.
Embodiment 3
Adopt BXQ150A type multi-line cutting machine, the diamond wire that is 0.3mm by wire diameter is mounted to Wire winding shaft from paying out reel order successively, then fixing 3 of 25*25*40mm specification layer of 6 row 4 row rubidium Fe-Mn magnetism material in work stage.The roller groove of 1.5mm is installed, new line feed speed be 3m/ minute, tension force be 35N, workbench to move down speed be 0.8mm/ minute, adopt bidirectional high speed cabling mode to cut.
Workpiece sheet slice qualification rate after cutting can reach 99%, and be 216 minutes clipping time, and workpiece sheet surface quality is good.The wire diameter loss that detects the diamond wire after cutting device is 5～15um.
Comparative example
Comparative example 1
Be to adopt mortar cutting machine to process with the difference of embodiment 1, the parameter of mortar cutting machine is installed conventional method and is set.
Workpiece sheet slice qualification rate after cutting can reach 90%, and be 340 minutes clipping time.
Comparative example 2
Be with the difference of embodiment 3, setup parameter is: diamond wire diameter is that 0.42mm, roller slot pitch are that 0.5mm, diamond wire tension force are that 28N, Trace speed are 600 ms/min.
Workpiece sheet slice qualification rate after cutting can reach 82%, and be 400 minutes clipping time.The diamond wire wire diameter detecting after cutting device is 0.38～0.40um.
Comparative example 3
Be with the difference of embodiment 3, setup parameter is: diamond wire diameter is that 0.12mm, roller slot pitch are that 0.15mm, diamond wire tension force are that 10N, Trace speed are 200 ms/min.
Workpiece sheet slice qualification rate after cutting can reach 40%, and be 410 minutes clipping time.Owing to often occurring broken string, need to frequently change, cut quality declines to a great extent.
From embodiment 1～3 and comparative example 1～3, method cutting magnetic material slice qualification rate provided by the invention is the highest, and clipping time is the shortest, and the wire diameter loss of diamond wire is few, and spillage of material is few.These technological parameters just can not realized by simple limited number of time experiment.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art's rice, say, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. the method with cutting magnetic material by using diamond wires, it is characterized in that, on multi-line cutting machine, adopting line wire diameter is the cutting magnetic material by using diamond wires of 0.3～0.4mm, technological parameter is: roller slot pitch is 0.77～2.5mm, new line feed speed is 1～7m/ minute, and it is 0.4～1.0mm/ minute that workbench moves down speed; Described diamond wire tension force is 30～40N; On described multi-line cutting machine, saved for sand system and peripheral heat-exchange system.
2. method according to claim 1, is characterized in that, the Trace speed of described diamond wire is 300～600 ms/min.
3. according to the method described in any one in claim 1 or 2, it is characterized in that, described multi-line cutting machine is BXQ150A type multi-line cutting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210030059.6A CN102528954B (en) | 2012-02-10 | 2012-02-10 | Method for cutting magnetic material by using diamond wires |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210030059.6A CN102528954B (en) | 2012-02-10 | 2012-02-10 | Method for cutting magnetic material by using diamond wires |
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| CN102528954A CN102528954A (en) | 2012-07-04 |
| CN102528954B true CN102528954B (en) | 2014-11-26 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5994766B2 (en) * | 2013-11-21 | 2016-09-21 | 信越半導体株式会社 | Work cutting method |
| CN112692704A (en) * | 2020-12-14 | 2021-04-23 | 浙江英洛华磁业有限公司 | Method for processing magnetic material by utilizing linear cutting |
| CN112705793B (en) * | 2020-12-16 | 2022-05-06 | 成都银河磁体股份有限公司 | Method for multi-wire cutting of samarium cobalt magnet by using diamond wire |
| CN113953592A (en) * | 2021-08-27 | 2022-01-21 | 厦门虹鹭钨钼工业有限公司 | Cutting method for refractory metal and alloy thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5699782A (en) * | 1995-05-31 | 1997-12-23 | Shin-Etsu Handotai Co., Ltd. | Wire saw apparatus |
| CN1304821A (en) * | 1999-12-14 | 2001-07-25 | 住友特殊金属株式会社 | Cut off method of rare earth alloy and cut off device |
| CN102049821A (en) * | 2010-12-15 | 2011-05-11 | 湖南宇晶机器实业有限公司 | Cutting rollers of multi-wire cutting machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3054550B2 (en) * | 1994-06-30 | 2000-06-19 | 株式会社日平トヤマ | Wire saw equipment |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5699782A (en) * | 1995-05-31 | 1997-12-23 | Shin-Etsu Handotai Co., Ltd. | Wire saw apparatus |
| CN1304821A (en) * | 1999-12-14 | 2001-07-25 | 住友特殊金属株式会社 | Cut off method of rare earth alloy and cut off device |
| CN102049821A (en) * | 2010-12-15 | 2011-05-11 | 湖南宇晶机器实业有限公司 | Cutting rollers of multi-wire cutting machine |
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| CN102528954A (en) | 2012-07-04 |
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