TWI477375B - Cutting wheel of brittle material and its processing method - Google Patents

Description

Cutter wheel for cutting brittle material and processing method thereof

The invention relates to a cutting and cracking cutter wheel for a brittle material comprising glass, ceramics, a cymbal and a semiconductor, and a processing method thereof, in particular to a cutter wheel for glass cutting and a processing method thereof.

With the rapid development of science and technology, many fields require brittle materials to have thin thickness and high hardness, and the cutting quality requirements for brittle materials are also increasing, especially in the glass industry. The following is an example of glass materials.

The disc-shaped cutter wheel for glass cutting has the common feature of including a cutting edge portion, a cutter wheel surface, and a shaft hole for mounting the cutter shaft at the center of the cutter wheel. The cutting edge is V-shaped for easy cutting into the glass. The material of the cutter wheel is mainly diamond, polycrystalline or polycrystalline diamond, hard alloy material, or a composite material of these materials.

At present, the thickness of glass used in glass, especially liquid crystal displays, is thinner and thinner from 2mm to 0.1mm, and the hardness is getting larger and larger. At the same time, the quality requirements of the glass cracked section are also higher, so that the pressure during cutting, the cutting technique, and the cracking The requirements for breaking efficiency and the accuracy requirements are also higher, which poses a great challenge to the research and development of the cutting tool-knife wheel.

Mainland China Patent Application No. ZL01124992.7 and China Authorized Announcement No. CN200680003956.0, and the Chinese Patent Authorization No. CN1323817C applied by the applicant, etc., propose several microstructures processed in the cutting edge portion, as shown in FIG. 6 (see FIG. 6 ( a)-(d), Figures 8(a)-(d) and Figures 9(a)-(f). These kinds of microstructures respectively produce a periodic concave-convex groove in the cutting edge portion, wherein when the cutter wheel is placed vertically in the horizontal plane, the surface of the cutter wheel can be seen as a front view. Part (a) of each figure is a front view, (b) is a partial enlarged view of the cutting edge of the front view, (c) is a side view of the cutter wheel, and (d) is a part of the blade of the side view. amplification. The principle of cutting a brittle material is to apply a certain pressure to the cutter wheel during cutting so that the convex portion of the blade is cut into the interior of the glass, and the concave portion cannot be cut into the interior of the glass, thereby forming intermittent periodic cuts. Adjacent cuts can generate cracks under stress and are connected by cracks, so that the glass is cut and broken.

For the cutter wheel of the first configuration, as shown in Figs. 6(a)-(d), the cutter wheel blade portion is a circular arc and a circular arc-like recess 61 structure and a projection 62 structure. However, this structure is mainly aimed at solving the cutting problem caused by the sliding knife in the cutting. The portion 63 shown in the drawing cannot form a cutting edge, and the glass is irregularly pressed when the glass is cut, causing a directional stress in the glass, and finally causing a radial crack as shown in Fig. 7(c). Figure 7 (a) - (c) shows severe damage to the glass cut.

For the cutter wheel of the second configuration, as shown in Figs. 8(a)-(d), the cutter wheel blade portion is a rectangular recess 81 and a rectangular projection 82 structure. When the structure is cut by the glass, the rectangular recess 81 is filled with the fine glass powder generated when the glass is cut, causing clogging, resulting in a cut in the cut.

For the cutter wheel of the third structure, as shown in Figs. 9(a)-(f), the cutter wheel blade portion is a trapezoidal recess 91 and an inverted trapezoidal projection 92 structure, and the trapezoidal recess 91 and the top view can be seen from a plan view. The inverted trapezoidal projections 92 form an acute angle γ. Similar to the second structure cutter wheel, when the structure is cut by the glass, the trapezoidal recess 91 is also filled with the glass fine powder generated when cutting, causing clogging.

For the processing method of the cutter wheel, the method of laser processing proposed by the applicant in the Chinese Patent Patent Publication No. CN1323817C and another Chinese mainland patent authorization announcement number CN200680003956.0, the direction of the laser beam is opposite to the cutter wheel. The disk surface is vertical. When the microstructure is processed at the ridgeline of the outer edge of the cutter wheel, the laser beam must penetrate the material or cut the material to form the microstructure, and the laser beam proposed in the Chinese Patent Publication No. CN200680003956.0 is opposite to the cutter wheel surface. The running track is a closed or non-closed curve. During laser processing, the entire cutter wheel material contained in the curve must be cut off to achieve the purpose of separating from the original cutter wheel. This method does not remove a region of a certain depth from the material.

In addition, when the cutter wheel is working, the cutter holder and the cutter wheel surface of the fixed cutter wheel and the cutter shaft and the cutter shaft hole will be rubbed at high speed and need lubrication. The use of liquid lubricant will cause glass contamination, so the lubrication of the cutter wheel is urgently needed. problem.

In view of the above problems, the present invention provides a cutter wheel for cutting glass and other brittle materials which can avoid the above-mentioned radial cracks without causing clogging, has a long service life and high cutting quality, and a processing method thereof.

It is an object of the present invention to provide a cutter wheel for cutting a brittle material, particularly a cutter wheel capable of cutting glass with high quality and increasing the service life.

In order to achieve the above object, the following technical solution is adopted: a cutter wheel for cutting a brittle material, comprising a V-shaped cutting edge formed by a first curved surface, a second curved surface, and an outer edge ridge line at an angle of a first corner ψ ₁ , a circular shape a disk surface and a central shaft hole, the outer edge ridge line of the V-shaped cutting edge portion has an alternately distributed cutting edge and a recessed structure, each of the cutting edges including a first surface and a second curved surface and a first side, a second side, a third side, and a fourth side, wherein the intersection of the first curved surface portion and the second curved surface portion is a first segment, and the intersection of the first side surface and the second side surface is a second segment, the third side surface and the fourth side surface The intersection line is a third segment, wherein the first curved surface portion, the second curved surface portion and the first segment of their intersecting lines form a V-shaped cutting edge, and the first side surface, the second side surface and the second line of the intersection line form a cutting edge The third side, the fourth side, and the third section of the intersection line form a cutting edge three.

According to the present invention, said V-shaped edge in the cutting edge angle is a first angle [Psi] _1, the first angle [Psi] is _an angular range of 70 degrees to -170 degrees, the edge angle of the first two two angle [Psi] _2, the second angle [Psi] ₂ is an angle range of 30 degrees to 330 degrees, the angle of the cutting edge for the first three triangular [Psi] _3, the third angular range of ₃ [Psi] is an angle of 30 degrees to be 330 degrees, the first The length of the segment ranges from 5um to 2000um, the length of the second segment ranges from 0.5um to 300um, and the length of the third segment ranges from 0.5um to 300um.

According to the invention, the first to fourth sides of the cutting edge may be any face.

According to the invention, the shape and angle of the alternately distributed cutting edges may be the same or different.

According to the invention, the bottom of the recessed structure may be any face, which may be concave or convex.

According to the present invention, the bottom of the recessed structure may also be a cutting edge 4 formed by the first bottom surface and the second bottom surface at an angle of the fourth corner ψ ₄ , wherein the intersection of the first bottom surface and the second bottom surface of the cutting edge four The line is the fourth segment, the angle of the fourth corner ψ ₄ ranges from 1 degree to 359 degrees, and the length of the fourth segment of the ridge line ranges from 3um to 2000um.

According to the invention, the four sides between two adjacent said cutting edges are also the sides of a recessed structure, said recessed structure being a recess of any shape having such four sides.

According to the present invention, the recessed structure may have a fifth side at a portion away from the first section of the ridge line, or may be any transition of the first bottom surface, the second bottom surface, and the first curved surface and the second curved surface.

According to the present invention, the number of the cutting edge and the recessed structure ranges from 30 to 3600, and the angle between the adjacent cutting edge or the recessed structure with respect to the center of the cutter wheel face is in the range of 0.1 to -12 degrees, and each phase The angles of the included angles β corresponding to the adjacent cutting edges or recessed structures may be the same or different.

According to the invention, the disk surface has a grid groove.

According to the invention, the shaft hole has a ruled groove.

According to the present invention, the disk surface and the shaft hole have a ruled line groove which may be a straight line groove or a curved line groove, and may be a parallel line groove or a cross line groove.

According to the present invention, each of the groove grooves has a width ranging from 1 um to 800 um, a depth ranging from 1 um to 300 um, and an interval of adjacent wire grooves ranging from 20 um to 800 um.

According to the invention, the cutter wheel is disc-shaped and has a diameter ranging from 1 mm to 25 mm. The cutter wheel material is diamond, polycrystalline or polycrystalline diamond, cemented carbide material, or a composite material of these materials.

Another object of the present invention is to provide a method of processing a cutter wheel for cutting a brittle material, particularly a method for processing a cutter wheel capable of cutting glass with high quality and improving the service life.

In order to achieve the above object, the following technical solution is adopted: a method for processing a cutter wheel for cutting a brittle material, which is ablated and removed by laser scanning at a V-shaped cutting edge of the cutter wheel to obtain the cutting edge and the recessed structure, the cutter wheel The direction of the upper laser beam is parallel to the face of the cutter wheel. It includes the following processing steps:

[1] set the shape to be processed, and set the scanning pitch d;

[2] Fixing the cutter wheel on the cutter shaft on the worktable, so that the direction of the laser beam above the cutter wheel is parallel to the cutter wheel surface, and the laser beam is focused on the edge of the V-shaped cutting edge;

[3] scanning the above shape by adjusting the laser parameters and controlling the running trajectory of the laser beam, so that a certain thickness of the material irradiated by the laser beam near the edge of the blade edge is removed, and the recessed structure is processed;

[4] With the straight line perpendicular to the cutter wheel face and passing through the geometric center of the cutter wheel as the axis, the cutter wheel is rotated by a certain angle, and steps [2] and [3] are repeated to obtain a second recessed structure, two adjacent The portion that is not processed in the middle of the recessed structure becomes a cutting edge that realizes cutting of the brittle material;

[5] The above steps are repeated to obtain a cutting edge and a recessed structure which are alternately distributed around the edge ridge line 11 of the cutting edge portion.

According to the invention, there is further included the step of machining the grid grooves on the face of the cutter wheel:

[1] design the pattern, width and spacing of the grid grooves, and set the scanning pitch d;

[2] Place the cutter wheel face flat on the workbench so that the direction of the laser beam is perpendicular to the face of the cutter wheel;

[3] focusing the laser beam on the surface of the cutter wheel surface;

[4] and laser ablation removal processing to obtain a disk surface with grid grooves, wherein the depth of the grid grooves can be controlled by adjusting the laser parameters.

According to the invention, the method further includes the step of machining the ruled groove in the shaft hole of the cutter wheel:

[1] setting a cross line or parallel line with a certain width and a certain interval, and setting the scanning pitch d;

[2] tilting the cutter wheel and fixing the cutter wheel so that the optical axis of the laser beam has a certain angle with the disk surface, and the angle range is 15 degrees - 45 degrees;

[3] focusing the laser beam on the inner wall of the shaft hole of the cutter wheel, and a certain section of the inclined surface of the inner wall is in the range of the scanning range of the laser beam and the depth of focus of the laser beam;

[4] Scan the grid with laser and rotate the cutter wheel at the same time, and finally obtain the shaft hole with the groove on the inner wall.

According to the present invention, the direction of the laser beam can also form an angle with the face of the cutter wheel when machining the cutting edge and the recessed structure, and the angle ranges from -89 degrees to 89 degrees.

According to the invention, the wavelength of the laser used is in the range of 157 nm to 2500 nm, the power of the laser is in the range of 0.01 W to 2000 W, and the scanning speed of the laser scanning is in the range of 0.01 mm/s to 1000 mm/s.

According to the present invention, the laser scanning method mainly includes a one-way scanning, a reciprocating scanning, and a rotary scanning mode, and the distance d of adjacent scanning lines in the laser scanning mode ranges from 0.1 um to 300 um.

The advantage of the cutter wheel for cutting brittle material and the processing method thereof is that the laser scanning method proposed in this patent can remove the specified depth in any area of the cutter wheel material by adjusting the laser parameters and processing parameters.

The cutter wheel of the new structure proposed in this patent cuts a brittle material, especially glass, and forms a periodic cut on the surface of the material to be cut when the cutting edge of the edge of the blade edge cuts into the interior of the brittle material. The cutting edge ₂ with the second corner ψ ₂ and the cutting edge 3 with the _third angle ψ ₃ have a similar cutting ability as the cutting edge, and its presence not only reduces the pressure required to cut the brittle material, but also makes the phase The material that is not in contact with the bottom of the cutter wheel recessed structure is cracked by the cutting stress, forming a crack, the crack is straight and parallel with the cut, so that the brittle material can be cut, and the purpose of high quality cracking can ensure the glass material. High-quality cutting, and can avoid cutter blockage and avoid radial cracks in the glass, and can extend the life of the cutter wheel and improve the cutting efficiency solution while obtaining a high-quality glass cutting section.

The lubrication problem can be well solved by applying a solid lubricant to the surface of the disk having the groove and the inner wall of the shaft hole.

1(a)-(c), Figs. 2(a)-(b), Figs. 3(a)-(b), Figs. 4(a)-(d) and Fig. 5(a)-(c) A cutter wheel for cutting a brittle material and a method for processing the same according to the present invention are described in detail.

The invention relates to a disc-shaped cutter wheel capable of cutting a brittle material, in particular, capable of cutting a glass material of 0.1 mm to 2 mm thick, mainly for processing a special microstructure in a V-shaped cutting edge portion of a commonly used cutter wheel. New structure of the cutter wheel.

The cutter wheel material is polycrystalline or polycrystalline diamond, and may also be diamond, hard alloy material, or a composite material of these materials; the thickness of the cutter wheel ranges from 0.3 mm to 5 mm, and the typical thickness thereof is 0.7 mm; The diameter range is 1mm-25mm, wherein the typical diameter is 2.5mm; the diameter of the central shaft hole ranges from 0.2mm-20mm, wherein the typical diameter is 0.8mm; the first angle V1 of the V-shaped cutting edge 1 (see Figure 2) The angle of (a)) can range from 70 degrees to 170 degrees, with a typical angle of 120 degrees.

Referring to Figures 1(a)-(c), Figures 2(a)-(b) and Figures 3(a)-(b), the cutter wheel of the present invention is mainly at the edge ridgeline of the V-shaped cutting edge portion 1. The circumference of 1 is distributed with a plurality of cutting edges 4 and a plurality of recessed structures 5, and the upper and lower cutter wheel faces 2 and the center of the cutter wheel are used to fix the shaft holes 3 of the cutter wheels.

Firstly, the cutting edge 4 and the recessed structure 5 in which the V-shaped cutting edge portion 1 is alternately distributed are designed. The number of the cutting edge 4 and the recessed structure 5 ranges from 30 to 3600, and the adjacent two cutting edges 4 or two adjacent ones The angle β of the recessed structure 5 with respect to the center of the cutter disk surface (see Fig. 1(a)) ranges from 0.1 degrees to 12 degrees. The size of each adjacent cutting edge 4 or each adjacent recessed structure 5 and the angle of the corresponding angle β may be the same or different.

Each cutting edge 4 includes a portion of the first curved surface a ₁ and the second curved surface a ₂ and a first side a ₃ , a second side a ₄ , a third side a _{5 ,} and a fourth side a ₆ , the first to the fourth The sides a ₃ , a ₄ , a ₅ and a ₆ are also the sides of the recessed structure 5, and the four sides a ₃ , a ₄ , a ₅ and a ₆ may be flat or curved. Wherein the intersection of the first curved surface a ₁ and the second curved surface a ₂ is a segment of the ridge line l, that is, the first segment l ₁ , the intersection of the first side a ₃ and the second side a ₄ is the second segment ₂ , the intersection of the third side a ₅ and the fourth side a ₆ is the third section l ₃ . The length of the first segment l ₁ ranges from 5 um to 2000 um, the length of the second segment l ₂ ranges from 0.5 um to 300 um, and the length of the third segment l ₃ ranges from 0.5 um to 300 um. A portion of the first curved surface a ₁ and the second curved surface a _{2 in} each cutting edge 4 and a portion of the first segment l _{1 of} their intersecting line ridges ₁ form a V-shaped cutting edge with an angle of the first corner ψ ₁ ( The V-shaped cutting edge is a part of the original V-shaped cutting edge portion 1 , and the first side a ₃ and the second side a ₄ and the intersection line - the second section ₁₂ form an edge having an angle of the second corner ψ ₂ Second, the second side a ₅ and the third side a ₆ and the intersection thereof and the third section l ₃ form a cutting edge ₃ having an angle of the third corner ψ ₃ , see FIG. 2(b), wherein the angle of the first corner ψ ₁ The range is from 70 degrees to 170 degrees, wherein the angle of the second angle ψ ₂ ranges from 30 degrees to 330 degrees, and the angle of the _third angle ψ ₃ ranges from 30 degrees to 330 degrees.

The four sides between the adjacent two cutting edges 4 are the sides of a recessed structure 5, and the recessed structure 5 is a recess of any shape having the four sides, the bottom of which is the first bottom surface a ₇ and the second bottom surface a The angle formed by ₈ is the cutting edge 4 of the fourth corner ψ ₄ , wherein the first bottom surface a ₇ and the second bottom surface a ₈ of the cutting edge 4 constitute the fourth section l ₄ of the ridge line. The angle of the fourth corner ψ ₄ ranges from 30 degrees to 180 degrees, and the length of the fourth segment of the ridge line l ₄ ranges from 3 um to 2000 um. The bottom of the recessed structure 5 may also be a flat or other shaped curved surface.

The recessed structure 5 may have a side surface a ₉ at a portion away from the ridge line l ₁ in addition to the four side surfaces and the bottom surface described above, or may be a smooth transition of the bottom surface and the second curved surface a ₂ of the first curved surface a ₁ .

The upper and lower cutter wheel faces 2 and the shaft holes 3 may have the lubricating groove grooves 6, 6', and the ruled grooves 6, 6' may be straight grooves or curved grooves, which may be parallel grooves or intersecting grooves. Each slot has a width ranging from 1um to 800um, a depth ranging from 1um to 300um, and an adjacent slot from 20um to 800um. The application of a solid lubricant in the grid slot 6 can well solve the lubrication problem.

In this embodiment, the polycrystalline diamond cutter wheel is selected as the processed object, and all the parameters are selected as typical values.

The typical size parameters of the cutter wheel are: 2.5 mm in diameter, 0.7 mm in thickness, 0.8 mm in diameter of the shaft hole 3, and the angle of the first angle ψ ₁ of the angle is 120 degrees.

The angles β of the cutting edge 4 and the recessed structure 5 are the same, and each has a typical value of 7.2 degrees, and the number is 50 each.

Referring to Figures 1-3, the ridgeline l ₁ of the V-shaped cutting edge 1 of the cutting blade 4 is designed to be 90 um, and the four sides a ₃ , a ₄ , a ₅ and a ₆ are plane and height. The same; the angle and ridge of the design edge 2 and the edge 3 are typical values, the second angle ψ ₂ , the _third angle ψ ₃ angle are 100 degrees, the second segment of the ridge line l ₂ and the third segment l ₃ parallel And 40 um; the bottom surface of the design recessed structure 5 is a curved surface, the angle of the fourth corner ψ ₄ of the cutting edge 4 is 120 degrees, the fourth section of the ridge line l _{4 is} correspondingly 67 um, and the first bottom surface a ₇ and the second a ₈ are parallel to the corresponding first partial surfaces a ₁ and a ₂ of the second curved, second section and third l ₃ l _2, respectively, perpendicular to the tangent to the intersection of the fourth segment l _4; the design of the recess structure 5 There are also two fifth side faces a ₉ away from the ridge line l ₁ end, and parallel to the faces of the ridge line second segment l ₂ , the third segment l ₃ and the fourth segment l ₄ , respectively, the two fifth sides a ₉ The spacing between the designs is 150um.

The groove 6 of the cutter wheel face 2 and the shaft hole 3 are designed to be intersecting straight lines, the width of the wire groove is 40 um, the depth is 40 um, and the interval of adjacent wire grooves 6 is 100 um.

The processing method of the new structure cutter wheel involved in the invention is characterized in that the cutting edge 4 and the recessed structure 5 in the cutter wheel, and the grid groove 6 in the cutter wheel surface 2 and the cutter shaft hole 3 are scanned by laser The way the ablation is obtained by removing the machining wheel material. The laser used has a wavelength range of 157 nm to 2500 nm and a laser power range of 0.01 W to 2000 W. The way of laser scanning mainly includes one-way scanning, reciprocating scanning and rotary scanning mode. The laser selected in the embodiment has a laser with a wavelength of 1064 nm and a maximum power of 30 W. The laser scanning mode is a reciprocating scanning mode.

When processing the cutting edge 4 and the recessed structure 5, the direction of the laser beam 7 above the cutter wheel can also form an angle with the surface of the cutter wheel, the angle of the angle is -89 degrees to 89 degrees, and the laser beam is taken in this embodiment. Parallel to the face of the cutter wheel, the processing includes the following steps:

[1] Set the shape to be processed, and set the scanning pitch d, the range of the spacing d is 0.1um-300um, where the typical value is 5um;

[2] fixing the cutter wheel on the cutter shaft 11 on the table 12 such that the direction of the laser beam 7 above the cutter wheel is parallel to the face of the cutter wheel, and the laser beam 7 is focused on the edge of the V-shaped cutting edge portion 1;

[3] by adjusting the laser parameters and controlling the trajectory of the laser beam 7 to scan the above shape, the edge of the edge of the blade is irradiated with a certain thickness of the material of the portion irradiated by the laser beam 7 to remove the recessed structure 5;

[4] with the straight line perpendicular to the cutter wheel face and passing through the geometric center of the cutter wheel as the axis, the cutter wheel is rotated by the above angle 7.2 degrees, and the step [3] is repeated to obtain the second recessed structure 5, two adjacent The portion of the recessed structure 5 that is not processed in the middle becomes a cutting edge 4 that realizes cutting of the brittle material;

[5] The above steps are repeated to obtain the cutting edge 4 and the recessed structure 5 which are alternately distributed around the edge ridge 1 of the cutting edge portion 1.

When the cutting edge 4 and the recessed structure 5 are processed, the scanning speed of the laser scanning ranges from 0.01 mm/s to 1000 mm/s, and this embodiment takes a typical value of 10 mm/s.

The processing of the grid grooves 6 on the cutter wheel face 2 includes the following processing steps:

[1] The pattern, the width and the spacing of the grid grooves 6 are designed as described in the above embodiment, and the scanning pitch d is set, and the range of the spacing d is 0.1 um - 300 um, which is 5 um in this embodiment;

[2] placing the cutter wheel face flat on the table so that the direction of the laser beam 7 is perpendicular to the face of the cutter wheel;

[3] focusing the laser beam 7 on the surface of the cutter wheel surface;

[4] and using laser scanning ablation removal processing, a disk surface 2 having grid grooves 6 is obtained, wherein the depth of the grid grooves 6 can be controlled by adjusting the laser parameters.

The processing of the ruled groove 6 in the cutter shaft hole 3 includes the following processing steps:

[1] setting the pattern, width and spacing of the grid grooves 6, and setting the scanning interval d of the laser, the range of the spacing d is 0.1 um - 300 um, in this embodiment, the value is still 5 um;

[2] tilting the cutter wheel and fixing the cutter wheel so that the optical axis of the laser beam 7 has a certain angle with the disk surface, and the angle range is 15 degrees - 45 degrees, and the angle is 25 degrees in this embodiment;

[3] focusing the laser beam 7 on the inner wall of the shaft hole of the cutter wheel, and a certain section of the slope of the inner wall is in the scanning range of the laser beam 7 and the focal depth of the laser beam 7;

[4] The grid is scanned by laser and the cutter wheel is rotated at the same time, and finally the shaft hole 3 having the groove 6 in the inner wall is obtained.

When the grid groove 6 is processed, the scanning speed of the laser scanning ranges from 0.01 mm/s to 1000 mm/s, and the typical value of this embodiment is 50 mm/s.

The cutter wheel of the new structure designed and processed by the above scheme forms a periodic cut on the surface of the material to be cut when cutting the brittle material, especially the glass, when the cutting edge 4 at the edge of the blade edge 1 is cut into the interior of the brittle material 8. mark 9 (see FIG. 5, FIG. 5 (a) of the cutter wheel cutting machining on a schematic view of a glass material, FIG. 5 (b) of FIG. 5 (a) locally enlarged circular region in FIG. ₅ a). The cutting edge 2 having the second corner ψ ₂ and the cutting edge 3 having the _third angle ψ ₃ have a similar cutting ability as the cutting edge 4, and the presence thereof not only reduces the pressure required to cut the brittle material, but also The material that is not in contact with the bottom of the cutter wheel recessed structure 5 adjacent to the slit is cracked by the cutting stress to form the crack 10, and the crack 10 is straight and parallel with the cut (see Fig. 5(c). And the crack diagram), the brittle material can be cut and the high quality cracking can ensure the high quality cutting of the glass material, and can avoid the cutter wheel blockage and avoid the radial crack of the glass, and can extend the life of the cutter wheel. A high-quality glass cut section can be obtained while improving the cutting efficiency solution.

The lubrication problem can be well solved by applying a solid lubricant to the disk surface 2 having the groove 6 and the inner wall of the shaft hole 3.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

1‧‧‧V-shaped cutting blade

2‧‧‧

3‧‧‧ shaft hole

4‧‧‧ cutting edge

5‧‧‧ recessed structure

6, 6' ‧ ‧ grid slot

7‧‧‧Laser beam

8‧‧‧ brittle materials

9‧‧‧cuts

10‧‧‧ crack

11‧‧‧Cutter shaft

12‧‧‧Workbench

a ₁ ‧‧‧first surface

a ₂ ‧‧‧second surface

a ₃ ‧‧‧ first side

a ₄ ‧‧‧second side

a ₅ ‧‧‧ third side

a ₆ ‧‧‧fourth side

a ₇ ‧‧‧first bottom

a ₈ ‧‧‧second bottom surface

a ₉ ‧‧‧ fifth side

l‧‧‧Outer edge ridgeline

l ₁ ‧‧‧first paragraph

l ₂ ‧‧‧second paragraph

l ₃ ‧‧‧third paragraph

l ₄ ‧‧‧fourth paragraph

ψ ₁ ‧ ‧ first corner

ψ ₂ ‧‧‧second corner

ψ ₃ ‧ ‧ third corner

ψ ₄ ‧ ‧ fourth corner

Figure 1 (a) is a front view of the cutter wheel;

Figure 1 (b) is a partial enlarged view of the circular area A ₁ in Figure 1 (a);

Figure 1 (c) is the back side of Figure 1 (b);

Figure 2 (a) is a side view of the cutter wheel;

Figure 2 (b) is a partial enlargement of the area A ₂ in Figure 2 (a);

Figure 3 (a) is a cross-sectional view of the cutter wheel;

Figure 3 (b) is a partial enlargement of the area A ₃ in Figure 3 (a);

4(a) is a schematic view showing a laser processing method of a cutting edge and a recessed structure of the cutter wheel;

Figure 4 (b) is a one-way laser scanning processing mode

Figure 4 (c) is a reciprocating laser scanning processing mode

Figure 4 (d) is the rotary laser scanning processing mode

Figure 5 (a) is a schematic view showing the cutting of the processed cutter wheel on the glass material;

Figure 5 (b) is a partial enlarged view of the circular area A ₅ in Figure 5 (a);

Figure 5 (c) is a schematic view of the surface cut and crack of the glass after cutting;

Figure 6 (a) is a front view of the arcuate cutter wheel;

Figure 6 (b) is a partial enlarged view of the circular area A ₆ in Figure 6 (a);

Figure 6 (c) is a side view of the arc-shaped cutter wheel of Figure 6 (a);

Figure 6 (d) is a partial enlarged view of the circular area B ₆ in Figure 6 (c);

Figure 7 (a) is a schematic view of the cutting and cutting results of the arc-shaped cutter wheel;

Figure 7 (b) is a partial enlarged view of the circular area A ₇ in Figure 7 (a);

Figure 7 (c) is a schematic view of the surface cut and crack of the material after cutting

Figure 8 (a) is a front view of a rectangular cutter wheel;

Figure 8 (b) is a partial enlarged view of the circular area A ₈ in Figure 8 (a);

Figure 8 (c) is a side view of a rectangular cutter wheel;

Figure 8 (d) is a partial enlarged view of the circular area B ₈ in Figure 8 (c);

Figure 9 (a) is a front view of the trapezoidal cutter wheel;

Figure 9 (b) is a partial enlargement of the circular area A ₉ in Figure 9 (a);

Figure 9 (c) is a side view of the trapezoidal cutter wheel;

FIG 9 (d) of FIG. 9 is a partial (c) is an enlarged circular region B in FIG. _9.

Figure 9 (e) is a cross-sectional view of the trapezoidal cutter wheel;

FIG 9 (f) of FIG. 9 (e) in a circular region C ₉ partially enlarged in FIG.

4. . . Cutting edge

5. . . Sag structure

a ₁ . . . First surface

a ₃ . . . First side

a ₅ . . . Third side

a ₇ . . . First bottom

a ₉ . . . Fifth side

l ₁ . . . First paragraph

l ₂ . . . Second paragraph

l ₃ . . . Third paragraph

l ₄ . . . Fourth paragraph

Claims (20)

A cutter wheel for cutting a brittle material, comprising a V-shaped cutting edge portion formed by a first curved surface, a second curved surface and an outer edge ridge line at a first angle, a circular disk surface and a central shaft hole, and a V-shaped cutting edge portion The outer edge ridge has an alternately distributed cutting edge and recessed structure in a week, wherein each of the cutting edges includes a portion of the first curved surface and the second curved surface, and the first side, the second side, the third side, and the first The four sides, the intersection line of the first curved surface portion and the second curved surface portion is the first segment, the intersection line of the first side surface and the second side surface is the second segment, and the intersection line of the third side surface and the fourth side surface is the third segment. The first curved surface portion, the second curved surface portion and the first segment of their intersecting lines form a V-shaped cutting edge, and the first side surface, the second side surface and the second line of the intersection line form a cutting edge 2, a third side surface and a fourth side surface And the third section of the intersection line forms a cutting edge three. The cutter wheel for cutting a brittle material according to claim 1, wherein the angle of the V-shaped cutting edge in the cutting edge is a first angle, and the angle of the first angle is 70 degrees. -170 degrees, the angle between the cutting edge two is a second angle, the angle of the second angle ranges from 30 degrees to 330 degrees, the angle of the cutting edge three is a third angle, and the angle of the third angle is also 30 degrees to At 330 degrees, the length of the first segment ranges from 5um to 2000um, the length of the second segment ranges from 0.5um to 300um, and the length of the third segment ranges from 0.5um to 300um. A cutter wheel for cutting a brittle material according to claim 1, wherein the first side, the second side, the third side, and the fourth side of the cutting edge are flat or curved. A cutter wheel for cutting a brittle material according to claim 1, wherein the alternately distributed cutting edges may have the same shape or angle. A cutter wheel for cutting a brittle material according to claim 1, wherein the bottom of the recessed structure is a flat surface or a curved surface, and may be concave or convex. The cutter wheel for cutting a brittle material according to claim 1, wherein the bottom of the recessed structure may also be a cutting edge formed by the first bottom surface and the second bottom surface at an angle of a fourth angle. The angle of the fourth corner ranges from 1 degree to 359 degrees, wherein the intersection line of the first bottom surface and the second bottom surface of the cutting edge 4 is the fourth stage, and the length of the fourth section of the ridge line ranges from 3 um to 2000 um. A cutter wheel for cutting a brittle material according to claim 1, wherein the first side, the second side, the third side and the fourth side between the two adjacent cutting edges are also one The side of the recessed structure is a recess of any shape having a first side, a second side, a third side, and a fourth side. The cutter wheel for cutting a brittle material according to claim 6 is characterized in that: the recessed structure may have a fifth side at a portion away from the first section of the ridge line, or may be a first bottom surface, The bottom surface and the smooth transition of the first curved surface and the second curved surface. A cutter wheel for cutting a brittle material according to claim 1, wherein the number of the cutting edge and the recessed structure ranges from 30 to 3600, and the adjacent cutting edge or recessed structure is opposite to the cutter wheel. In the face The angle of the fifth angle of the angle of the heart ranges from 0.1 degrees to 12 degrees, and the angle of the fifth angle of the angle corresponding to each adjacent cutting edge or recessed structure may be the same or different. A cutter wheel for cutting a brittle material according to claim 1, wherein the disk surface has a groove. A cutter wheel for cutting a brittle material according to claim 10, wherein the shaft hole has a groove. The cutter wheel for cutting a brittle material according to claim 11, wherein the disk surface and the shaft hole have a groove groove or a curved wire groove, which may be a parallel wire groove or Cross the trunking. The cutter wheel for cutting brittle material according to claim 11 is characterized in that: each of the groove grooves has a width ranging from 1 um to 800 um and a depth ranging from 1 um to 300 um, adjacent to each other. The interval ranges from 20um to 800um. The cutter wheel for cutting a brittle material according to claim 1, wherein the cutter wheel is disc-shaped and has a diameter ranging from 1 mm to 25 mm, and the cutter wheel material is diamond, polycrystalline or polycrystalline diamond. Carbide material, or a composite of these materials. The invention relates to a method for processing a cutter wheel for cutting a brittle material, which is characterized in that a V-shaped cutting edge of a cutter wheel is ablated by laser scanning to obtain an alternately distributed cutting edge and a concave structure, and a laser beam direction above the cutter wheel Parallel to the cutter wheel surface, including the following processing steps: [1] set the shape to be machined and set the scan pitch; [2] fix the cutter wheel on the cutter shaft on the table to make the direction of the laser beam above the cutter wheel Parallel to the face of the cutter wheel and focus the laser beam on the edge of the V-shaped cutting edge; [3] Scan the above shape by adjusting the laser parameters and controlling the laser beam trajectory so that the edge of the blade is irradiated by the laser beam The material of a certain thickness of the part is removed, and the concave structure is processed; [4] the straight line perpendicular to the surface of the cutter wheel and passing through the geometric center of the cutter wheel is rotated, the cutter wheel is rotated by a certain angle, and the steps are repeated [2] And [3] to obtain a second recessed structure, wherein the portion of the two adjacent recessed structures that is not processed is a cutting edge for achieving the cutting of the brittle material; [5] repeating the above steps to obtain an alternating distribution on the cutting edge Edge of the cutting edge ridge line of the week and depression structure. The method for processing a cutter wheel for cutting a brittle material according to claim 15 is characterized in that it further comprises the step of processing the groove on the surface of the cutter wheel: [1] designing the pattern, width and groove of the groove Interval and set the scanning pitch; [2] lay the face of the cutter wheel flat on the table so that the direction of the laser beam is perpendicular to the surface of the cutter wheel; [3] focus the laser beam on the surface of the cutter wheel surface; [4] and use laser Scanning ablation removal process results in a disk surface having grid grooves, wherein the depth of the grid grooves can be controlled by adjusting the laser parameters. The method for processing a cutter wheel for cutting a brittle material according to claim 15 is characterized in that it further comprises the step of processing the ruled groove in the shaft hole of the cutter wheel: [1] setting a cross with a certain width and a certain interval. Line or parallel line, and set the scanning pitch; [2] tilt the cutter wheel and fix the cutter wheel so that the optical axis of the laser beam has a certain angle with the disk surface, the angle range is 15 degrees - 45 degrees; [3] the laser beam Focusing on the inner wall of the shaft hole of the cutter wheel, and a certain section of the inclined surface of the inner wall is in the range of the scanning range of the laser beam and the depth of focus of the laser beam; [4] scanning the grid with laser and rotating the cutter wheel at the same time, and finally processing the inner wall A shaft hole with a groove in a week. The method for processing a cutter wheel for cutting a brittle material according to claim 15 is characterized in that, in processing the cutting edge and the recessed structure, the direction of the laser beam can also form an angle with the surface of the cutter wheel, the angle The range is -89 degrees to 89 degrees. The method for processing a cutter wheel for cutting a brittle material according to any one of claims 15 to 17, wherein the laser has a wavelength range of 157 nm to 2500 nm and a laser power range of 0.01 W to 2000 W. The scan speed of the laser scan ranges from 0.01 mm/s to 1000 mm/s. The method for processing a cutter wheel for cutting a brittle material according to any one of claims 15 to 17, wherein the laser scanning method mainly comprises a one-way scanning, a reciprocating scanning and a rotary scanning mode, and a laser scanning mode. The spacing of adjacent scan lines in the middle ranges from 0.1 um to 300 um.