CN207127339U - Shaping saw silk - Google Patents
Shaping saw silk Download PDFInfo
- Publication number
- CN207127339U CN207127339U CN201720835960.9U CN201720835960U CN207127339U CN 207127339 U CN207127339 U CN 207127339U CN 201720835960 U CN201720835960 U CN 201720835960U CN 207127339 U CN207127339 U CN 207127339U
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- China
- Prior art keywords
- saw silk
- steel wire
- axis
- shaping
- silk
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/18—Sawing tools of special type, e.g. wire saw strands, saw blades or saw wire equipped with diamonds or other abrasive particles in selected individual positions
- B23D61/185—Saw wires; Saw cables; Twisted saw strips
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Describe a kind of shaping saw silk with given shape.Shaping saw silk is made up of steel wire, and the steel wire is provided with the curling in mutually perpendicular direction.Institute's applied waveforms are equal in vertical direction and differ only by the phase introduced between two curlings.For shaping saw silk characterized by its projection along its axis, the projection forms the convex trace that turning is connected by side, wherein, the quantity at turning is three or four.In other words, sawing silk has the shape of quadrangle or triangle spiral (that is, having the triangle at three or four turnings or the spiral of tetragonal trace along the Projection Display of axis).Shaping saw silk is made cheaply, and privileged direction is not shown during sawing due to its helicoidal type.
Description
Technical field
The present invention relates to a kind of shaping saw for being used to cut hard brittle material (such as silicon, sapphire, GaAs, quartz etc.)
Silk.
Background technology
Silk is sawed with the sawing machine for cutting hard brittle material.In sawing machine, saw silk is helically wound around two or more
On individual fluting capstan winch, so as to form saw blade.Saw silk is poured on same on saw blade in the viscous liquid (being referred to as starching) including abrasive particle
When move forward and backward.The abrasive particle captured between workpiece and saw silk is ground fragile material, so as to progressively cut through workpiece.
Saw silk is the circle finer wire with high-tensile.When Cutting Length elongated (for example, being longer than 200mm), exist
Following possibility：In the exit of otch, exist without more abrasive particles, and cutting efficiency is locally reduced.This was hindered
Total cutting speed of journey.In order to overcome this point, it has been suggested that provide the straight steel wire with small local bend, the small part is curved
Pars convoluta has the straight section of connection bending section between, and this produces " the saw silk of shaping ".Due to bending section, starch preferably be dragged in
In otch, and reduce the loss of the abrasive material towards cut end.
In order to implement this bending section, it has been suggested that various suggestions.Initially, it has been suggested that implement on steel wire it is single it
Font crimps (JP19880117836).However, the fact that this embodiment is not alignd by zigzag plane with otch, this leads
Cause non-straight wire cutting.The problematic portion is solved by WO2006067062.One kind is described in WO2006067062 and is provided with two
The monofilament-type saw silk of individual curling, each curling have pitch and amplitude, and curling is disposed at least two different planes.So
And when one in curling is come into force, cutting will be carried out only by the curling.In addition, it is necessary to two pairs of crimping wheels are implemented to crimp, this
Make it expensive operation.
Silk is sawed in order to provide not having preferential sawing plane and make efficient shaping, inventor proposes herein below.
The content of the invention
It is an object of the invention to provide the saw silk that a kind of two-fold for not forming preferential cutting planes during use is bent.
Problem solves by providing a kind of shaping saw silk.Shaping saw silk includes steel wire.Steel wire has small bending section, bending
There is substantially straight section, so as to connect bending section between portion.Shaping saw silk along vertical line under small pulling force for example by protecting
It is held to tense along axis to extend.In each vertical cross-section of steel wire, central point can be defined.Connect the production of these central points
The center line of cast steel silk.
Projection Display of the center line in the plane perpendicular to axis has the convex trace at turning.In other words, trace is
Curve in the plane perpendicular to axis, it is by making the plane with passing through the arbitrfary point, parallel to axis of center line
Line intersects to be formed.Convex trace is the mark being maintained at a little on the inside of trace on any pair point of the line on connection trace
Line.Turning is connected by side.Turning has the curvature increased compared with the curvature on side.Curvature is the inverse of radius of curvature.Trace is appointed
Radius of curvature at meaning point is the radius of the osculating circle of trace at this point.In three dimensions, people can be identified with Z axis and be shaped
Saw the axis of silk, then projection plane becomes the X/Y plane perpendicular to Z axis.
A kind of shaping saw silk is provided, including steel wire, the steel wire have bending section, have between the bending section
Section, the saw silk of structuring extend along axis, and the axis is the axis of the structuring saw silk, and the steel wire has center
Line, the center line in the plane perpendicular to the axis, parallel to the projection of the axis there is convex trace, it is described convex
Trace has the turning connected by side, and the turning has curvature bigger compared with the curvature on the side.
In a preferred embodiment, the quantity at turning is three or four.Most preferably four.
Steel wire is high-carbon steel wire circle, at a distance stretch, high-tensile strength of the diameter " d " between 40 to 300 μm, diameter
" d " most preferably between 100 to 120 μm (such as 115 μm).Use even more thin standard size (such as 110,100 or even 90
To 80 μm) steel wire making progress.Because steel wire must tense during sawing, therefore must also improve tensile strength.
4000N/mm2Tensile strength above is existing frequently-used in 120 μm of steel wires.
Preferably, shaping saw silk has external diameter " D ", and ratio D/d is between 1.04 to 1.40.It is highly preferred that
Ratio D/d between 1.05 to 1.20 (for example, 1.10).Ratio D/d be used as production control facilitate measure.The ratio is steel
Ratio of the optical diameter (diameter for corresponding to external cylinder) of silk with steel wire diameter.Big D/d values (such as more than 2.0) are less excellent
Choosing, because then profile wire obtains too big elongation in low load, being bent to form when this is to cutting is unfavorable.
Preferably, it is the diameter " d " of the saw silk itself along the average distance of the axis of shaping saw silk between bending section
5 times to 50 times.Average distance is to measure length " L " and the number of bending section being counted in the length " L ", in three dimensions
The ratio of amount.Measurement length " L " should comprise at least ten bending sections.
If being more than 50 times of saw silk itself diameter " d " between the bending section of shaping saw silk along the average distance of axis,
Then recess is too remote, and this causes the deficiency in grinding-material to otch to be drawn.Otherwise, if shaping saw silk bending section between along
The average distance of axis is less than 5 times of saw silk itself diameter " d ", then per unit length has too many bending section, and steel wire
It will extend during use too many.It is highly preferred that the average distance for sawing the axis of silk between bending section along shaping is the saw
Between 15 times to 25 times of the silk diameter " d " of itself (for example, 20 times of the saw silk diameter " d ").
The center line of steel wire has length " S " when being measured on axial length " L ", and preferably, (S-L)/L exists
Between 0.006% to 0.6%.Should (S-L)/L be due to the shape of steel wire and be built in " extra length " of steel wire.If should
" extra length " below 0.006%, then the deformation that steel wire be present is not enough to the entrained particles in the bending section of steel wire, and this causes
The deficiency of abrasive is drawn.If being somebody's turn to do " extra length " more than 0.6%, steel wire will extend too much during use, and this will
So that saw silk becomes slack during sawing process.
Shaping saw silk is made cheaply, and privileged direction is not shown during sawing due to its helicoidal type.
Brief description of the drawings
Fig. 1 shows instruction, present invention shaping saw silk the three dimensional representation of the axis with saw silk.
Fig. 2 shows that first embodiment saws the generating function of silk together with shaping.
Fig. 3 shows that second embodiment saws the generating function of silk together with shaping.
Embodiment
Shaping saw silk is made by crimping.Curling is that straight steel wire is guided between a pair of intermeshing toothed wheels
Action.In order to not damage steel wire, the tooth of rounding wheel.This is except separating gear so that steel wire a pair of gears of extraordinary image in addition to.
Because regularly separating the tooth in toothed wheel, steel wire will receive periodically deforming.
The periodically deforming can be described by waveform " f (z) ", wherein, " z " be with along shaping saw silk axis away from
From corresponding argument of function.The value of function " f " correspond to for example in X-direction and Z axis deviation.F (z) value is in X=-a
Change between X=+a, wherein, " a " is the amplitude of function.Waveform " f (z) " has following characteristic：For each of function
Independent variable " z ", f (z+W)=f (z).Then, W is the wavelength of waveform.Therefore, " f (z) " is for being selected as the value of Z axis origin
“z0" zero must be become.By the selection, f (0) is changed into 0, and similarly, f (W) is necessary for zero.Waveform f (z) is in each scope 0
To W, in " w1" place has a minimum value (f (w1)=- a), and in " w2" place has a maximum (f (w2)=+ a,
And w1<w2), therefore, 0 to there must be f (w between W0Another Z coordinate " w of)=00”.If w1=W/4 and w2=W-
w1, then waveform symmetry, and " w0" it is located at w0At=W/2.If w1Different from W/4 and w2=W-w1, then waveform will be referred to as " tiltedly
".Every other waveform causes non-convex projection trace.
The saw silk of the present invention is generated by a waveform f (z) now, wherein, deformation (that is, the steel wire in X-direction is provided first
Obtain the curling being located in XZ planes).Thereafter, the single flat curling with identical waveform f (z) perpendicular to having rolled up
The second curling is obtained in the Y-direction of the plane of bent steel wire.However, the second curling is inclined to the first curling with leading phase potential difference " F "
Move, wherein, F is in W/8 to (for example, W/4) between 3W/8.Therefore, the waveform provided in Y-direction is f (z+F).
So, profile wire will be taken substantially spiral-shaped, and the center line of the steel wire of the shape is perpendicular to the flat of axis
The convex trace that projection on face is connected at display turning by side, and wherein, turning has the curvature of increase.Spiralization cycle is corresponding
In the wavelength of curling.
Fig. 1 gives the stereogram of this shaping saw silk 100.Shaping saw silk includes steel wire, and the steel wire has passed through head
Steel wire is first deformed into obtain the deformation of spiral square by single curled wire in X-direction according to specific waveforms f (z).Curling
Steel wire then be laid in XZ planes.Steel wire is then deformed in the Y direction by same waveform, but offsets W/4.So, spiral shell is obtained
Space curve is revolved, being projected on X/Y plane for the space curve forms tetragonal trace.Pay attention to, the engineer's scale phase on X and Y-direction
Deng, but these engineer's scales are different in z-direction.
Fig. 2 shows three projections of the center line of steel wire.Generation deformation f (z) is the triangle letter described such as top right plot
Number.The deformation has 4mm wavelength.The amplitude " a " of deformation is 0.008mm or 8 μm.Phase difference " F " between two deformations is
Through being configured to 0.78mm or 0.19*W.Steel wire has 120 μm of diameter " d " in itself.External diameter D is 135 μm.Thus, than
Value D/d is 1.125.Difference of the physical length " S " of center line compared with axial length " L " between the length passes through (S-L)/L
It is determined that it is equal to 0.0061%.On average, the distance between bending section is 1mm or for 9.2 times of diameter " d ".
Fig. 3 shows the projection of the center line of the steel wire of the shaping saw silk according to another embodiment.Here, warping function
F (z) is the oblique triangular waveform as shown in the figure of lower-left.The maximum of triangle not (that is, the 1mm wavelength at 4mm a quarter
Place) reach, but reach at 1.2mm.Phase difference " F " is arranged to 1mm (that is, W/4).Again, center line is on X/Y plane
Projection in show the convex quadrangle around the corner and at side with change curvature.Gauge of wire is 120 μm.Shaping saw silk
Circumscribed circle diameter be 136 μm.Therefore, D/d 1.13.Extra length (S-L)/L is 0.0067%.Being averaged between bending section
Distance is 9.2xd.
Shaping saw silk with the shape provides the abrasive particle that can wherein bottle up with it between saw silk and external cylinder
Gap the advantages of.This causes more preferably cutting-rate.Due to spiral shape, saw silk will not start to saw according to preferential curl direction
Cut.Moreover, because only needing to make two phase shift curlings to obtain helical structure, it is possible to make steel wire at high speed.
Claims (6)
1. one kind shaping saw silk, including steel wire, the steel wire have bending section, there is section, structuring between the bending section
Saw silk extend along axis, the axis is the axis of structuring saw silk, and the steel wire has center line,
It is characterized in that：
The center line in the plane perpendicular to the axis, parallel to the projection of the axis there is convex trace, it is described
Convex trace has the turning connected by side, and the turning has curvature bigger compared with the curvature on the side.
2. shaping saw silk according to claim 1, it is characterised in that the quantity at the turning is three or four.
3. shaping saw silk according to claim 1, it is characterised in that the steel wire has diameter " d ", and the diameter is 40
μm and 300 μm between.
4. shaping saw silk according to claim 1, it is characterised in that the steel wire has diameter " d ", and the shaping
Saw silk has external diameter " D ", and wherein, ratio D/d is between 1.04 and 1.40.
5. shaping saw silk according to claim 1, it is characterised in that the steel wire has diameter " d ", and wherein, it is curved
Between pars convoluta along the average distance of the axis between 5 times and 50 times of the diameter " d ".
6. shaping saw silk according to claim 1, it is characterised in that the center when being measured on axial length " L "
0.006% to 0.6% amount of the length " S " of the line length " L " bigger than the axial length " L ".
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720835960.9U CN207127339U (en) | 2017-07-11 | 2017-07-11 | Shaping saw silk |
| PCT/CN2018/094068 WO2019011145A1 (en) | 2017-07-11 | 2018-07-02 | Shaped sawing wire |
| JP2020600007U JP3227718U (en) | 2017-07-11 | 2018-07-02 | Molded saw wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720835960.9U CN207127339U (en) | 2017-07-11 | 2017-07-11 | Shaping saw silk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207127339U true CN207127339U (en) | 2018-03-23 |
Family
ID=61633980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720835960.9U Active CN207127339U (en) | 2017-07-11 | 2017-07-11 | Shaping saw silk |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3227718U (en) |
| CN (1) | CN207127339U (en) |
| WO (1) | WO2019011145A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019011145A1 (en) * | 2017-07-11 | 2019-01-17 | Bekaert Binjiang Steel Cord Co., Ltd. | Shaped sawing wire |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2643118B1 (en) * | 2010-11-22 | 2017-05-17 | Bekaert Binjiang Steel Cord Co., Ltd. | A structured sawing wire |
| CN203679432U (en) * | 2012-09-07 | 2014-07-02 | 贝卡尔特公司 | Molding sawing wire |
| ITTV20130138A1 (en) * | 2013-08-27 | 2015-02-28 | Boart & Wire Srl | METHOD FOR THE REALIZATION OF A DIAMOND WIRE FOR THE CUTTING OF STONE MATERIAL AND DIAMOND WIRES SO OBTAINED. |
| CN207127339U (en) * | 2017-07-11 | 2018-03-23 | 江阴贝卡尔特合金材料有限公司 | Shaping saw silk |
-
2017
- 2017-07-11 CN CN201720835960.9U patent/CN207127339U/en active Active
-
2018
- 2018-07-02 WO PCT/CN2018/094068 patent/WO2019011145A1/en active Application Filing
- 2018-07-02 JP JP2020600007U patent/JP3227718U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019011145A1 (en) * | 2017-07-11 | 2019-01-17 | Bekaert Binjiang Steel Cord Co., Ltd. | Shaped sawing wire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3227718U (en) | 2020-09-17 |
| WO2019011145A1 (en) | 2019-01-17 |
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