Diamond saw blade with high sharpness

Abstract

The utility model discloses a diamond saw blade with high sharpness. The diamond saw blade comprises a base body and a saw blade body, the saw blade body is arranged on the outer circumference of the base body; the saw blade body is provided with a plurality of first slice sets and second slice sets, and the first slice sets and the second slice sets are arranged in a crossed mode along the circumference of the saw blade body. And a separation groove is formed between the adjacent first slice group and second slice group. According to the saw blade, the toughness of the saw blade is enhanced through the crossed arrangement and combination of the first cutting blade group and the second cutting blade group and the arrangement of the different convex blocks, the cutting surface can be better polished through the surfaces of the convex blocks during cutting, the cutting resistance can be reduced through the arrangement of the different convex blocks, so that the saw blade is sharper, and the service life of the saw blade is prolonged. The service life of the saw blade is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of diamond saw blade technology, and particularly relates to a diamond saw blade with high sharpness. Background Technology

[0002] Diamond sintered circular saw blades play a vital role in construction engineering, stone processing, and concrete cutting, with their performance directly impacting processing efficiency and the quality of finished materials. Different materials being cut (such as granite, marble, and reinforced concrete) and cutting methods (such as dry cutting, wet cutting, and curve cutting) impose varying requirements on the overall performance of the saw blade, with toughness and strength being core indicators. Insufficient sharpness leads to significantly increased cutting resistance, reduced processing efficiency, shortened saw blade lifespan, and increased operating costs. Utility Model Content

[0003] Based on the above background, the purpose of this utility model is to provide a diamond saw blade with high sharpness.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-sharpness diamond saw blade includes a substrate and a saw blade body; the saw blade body is disposed on the outer circumference of the substrate.

[0006] The saw blade body is provided with multiple first slicing groups and second slicing groups, which are arranged in a crisscross pattern along the circumference of the saw blade body.

[0007] A separating groove is provided between adjacent first slice groups and second slice groups;

[0008] The first slice group includes a first protrusion, a second protrusion, a third protrusion, a fourth protrusion, a fifth protrusion, and a sixth protrusion;

[0009] The first protrusion and the second protrusion are located on the outer edge of the saw blade body;

[0010] A first groove is provided between the first protrusion and the second protrusion. The first groove is U-shaped and the opening of the first groove faces the inner circumference of the saw blade body.

[0011] The third protrusion is located on the side of the first protrusion near the inner circumference of the saw blade body;

[0012] The fourth protrusion is located on the side of the second protrusion near the inner circumference of the saw blade body;

[0013] The fifth protrusion is located on the side of the third protrusion near the inner circumference of the saw blade body;

[0014] The sixth protrusion is located on the side of the fourth protrusion near the inner circumference of the saw blade body;

[0015] The second slice group includes a seventh protrusion, an eighth protrusion, a ninth protrusion, a tenth protrusion, an eleventh protrusion, and a twelfth protrusion;

[0016] The seventh and eighth protrusions are located on the outer edge of the saw blade body;

[0017] A fifth groove is provided between the seventh protrusion and the eighth protrusion. The first groove is U-shaped, and the opening of the fifth groove faces the inner circumference of the saw blade body.

[0018] The ninth protrusion is located on the side of the seventh protrusion near the inner circumference of the saw blade body;

[0019] The tenth protrusion is located on the side of the eighth protrusion near the inner circumference of the saw blade body;

[0020] The eleventh protrusion is located on the side of the ninth protrusion near the inner circumference of the saw blade body;

[0021] The twelfth protrusion is located on one side of the tenth protrusion near the inner circumference of the saw blade body.

[0022] Through the above technical solution, the cross-arrangement of the first and second slice groups and the setting of different protrusions enhance the toughness of the saw blade. During cutting, the surface of the protrusions can be better polished, and the arrangement of different protrusions can reduce cutting resistance, thereby making the saw blade sharper, increasing the service life of the saw blade, making the cut surface of the cut object smoother, improving the cutting quality, and greatly improving the sharpness of the saw blade.

[0023] Furthermore, the heights of the first protrusion, the third protrusion, and the fifth protrusion increase sequentially;

[0024] The heights of the second, fourth, and sixth protrusions increase sequentially.

[0025] The heights of the seventh, ninth, and eleventh protrusions increase sequentially.

[0026] The heights of the eighth, tenth, and twelfth protrusions increase sequentially.

[0027] The cross-sections of the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and twelfth protrusions are trapezoidal, and they increase in height from the outer circumference to the inner circumference along the saw blade body.

[0028] Through the above technical solution, the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and twelfth protrusions have trapezoidal cross sections, and the different protrusions increase in height from the outer circumference to the inner circumference along the saw blade body. This makes the diamond saw blade formed by the saw blade body, the first cutting group, and the second cutting group thinner on the outside and thicker on the inside, making it easier to enter the cutting surface and form a cutting surface when cutting materials. The entry is sharp, significantly reducing the entry resistance, thereby achieving a sharp and efficient cutting effect.

[0029] Furthermore, the first slice group also includes a second groove, a third groove, and a fourth groove;

[0030] The second groove is provided on one side of the first protrusion, and the two ends of the second groove respectively separate the first protrusion and the third protrusion, the second protrusion and the fourth protrusion;

[0031] The third groove is provided on one side of the third protrusion, and the two ends of the third groove respectively separate the third protrusion from the fifth protrusion, the fourth protrusion, and the sixth protrusion;

[0032] The fourth groove is located on one side of the third protrusion, and the two ends of the fourth groove respectively separate the third protrusion and the fourth protrusion, the fifth protrusion and the sixth protrusion.

[0033] Furthermore, the second slice group also includes a sixth groove, a seventh groove, and an eighth groove;

[0034] The sixth groove is located on one side of the seventh protrusion, and the two ends of the sixth groove respectively separate the seventh protrusion from the ninth protrusion, the eighth protrusion from the tenth protrusion;

[0035] The seventh groove is located on one side of the ninth protrusion, and the two ends of the seventh groove respectively separate the ninth protrusion from the eleventh protrusion, the tenth protrusion from the twelfth protrusion;

[0036] The eighth groove is located on one side of the ninth protrusion, and the two ends of the eighth groove respectively separate the ninth protrusion from the tenth protrusion, the eleventh protrusion from the twelfth protrusion, and the eleventh protrusion from the twelfth protrusion.

[0037] Through the above technical solution, the arrangement and interconnection of the first, second, third, fourth, fifth, sixth, seventh, and eighth grooves can better guide the chips during the cutting process, avoiding blockage caused by the absence of chip removal channels or the chip removal channels being too small, which would affect the cutting effect.

[0038] Furthermore, the first and second slicing groups are inclined, and the inclination direction is consistent with the rotation direction of the saw blade body during use.

[0039] Furthermore, the third and fourth protrusions are arc-shaped on the side closest to the inner circumference of the saw blade body; the fifth and second protrusions are arc-shaped on the side furthest from the inner circumference of the saw blade body.

[0040] Furthermore, the substrate is made of steel and is circular, with a mounting hole at its center.

[0041] Furthermore, the substrate is provided with a plurality of stress holes, which are evenly distributed in a circular array around the mounting hole.

[0042] By setting stress holes, the toughness and impact resistance of the matrix can be improved.

[0043] Furthermore, the outer side of the substrate is provided with uniformly distributed protrusions, and the outer side of the protrusions is arc-shaped.

[0044] Furthermore, the height of the protrusion is 2 / 3 of the height of the base.

[0045] This utility model has the following beneficial effects:

[0046] 1. The cross-arrangement of the first and second blade groups, and the orderly arrangement of the first, second, third, fourth, fifth, and sixth protrusions of the first blade group, and the seventh, eighth, ninth, tenth, eleventh, and twelfth protrusions of the second blade group, form a pattern on the side of the saw blade body with a certain degree of inclination. This not only enhances the toughness of the saw blade body, but also allows it to better enter the workpiece and cut it in the direction of rotation of the saw blade body when it comes into contact with the workpiece. During cutting, the surface of the protrusions is used to better polish the cut surface, and the gaps between different protrusions allow for unobstructed chip removal, thereby reducing cutting resistance, making the saw blade sharper, extending its service life, and resulting in a smoother cut surface, improving cutting quality and greatly enhancing the sharpness of the saw blade.

[0047] 2. The arrangement and interconnection of the first, second, third, fourth, fifth, sixth, seventh, and eighth grooves can promptly and quickly remove the debris generated during the cutting process, preventing debris from accumulating inside the cutting surface and causing resistance to the saw blade, thus avoiding excessive wear on the saw blade, affecting its service life, and impacting the cutting effect.

[0048] 3. The first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and twelfth protrusions have trapezoidal cross-sections, and the different protrusions increase in height from the outer circumference to the inner circumference along the saw blade body. This makes the diamond saw blade formed by the saw blade body, the first cutting group, and the second cutting group thinner on the outside and thicker on the inside. When cutting materials, it is easier to enter the blade and form a cutting surface. The entry is sharp, and the entry resistance is significantly reduced, thus achieving a sharp and efficient cutting effect. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0050] Figure 1 This is a front structural diagram of the present invention;

[0051] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0052] Figure 3 This is a schematic diagram of the front structure of the substrate of this utility model;

[0053] Figure 4 This is a schematic diagram of the structure of a first slice group and a second slice group of this utility model.

[0054] Among them: 1. Substrate; 11. Mounting hole; 12. Stress hole; 13. Protrusion;

[0055] 2. Saw blade body;

[0056] 31. First protrusion; 32. Second protrusion; 33. Third protrusion; 34. Fourth protrusion; 35. Fifth protrusion; 36. Sixth protrusion; 37. First groove; 38. Second groove; 39. Third groove; 310. Fourth groove;

[0057] 41. Seventh protrusion; 42. Eighth protrusion; 43. Ninth protrusion; 44. Tenth protrusion; 45. Eleventh protrusion; 46. Twelfth protrusion; 47. Fifth groove; 48. Sixth groove; 49. Seventh groove; 410. Eighth groove;

[0058] 5. Divider groove. Detailed Implementation

[0059] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0060] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0061] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0062] like Figure 1-4As shown, a high-sharpness diamond saw blade includes a base 1 and a saw blade body 2; the saw blade body 2 is disposed on the outer circumference of the base 1; the saw blade body 2 is made of a mixture of diamond and metal powder, and is bonded to the base 1 by cold pressing; the saw blade body 2 has multiple sets of first and second slicing groups, which are arranged intersectingly along the circumference of the saw blade body 2; a partition groove 5 is provided between adjacent first and second slicing groups; the first slicing group includes a first protrusion 31, a second protrusion 32, a third protrusion 33, a fourth protrusion 34, a fifth protrusion 35, and a sixth protrusion 36; the first protrusion 31 and the second protrusion 32 are disposed on the outer edge of the saw blade body 2; the first protrusion 31... A first groove 37 is provided between the first protrusion 31 and the second protrusion 32. The first groove 37 is U-shaped, and the opening of the first groove 37 faces the inner circumference of the saw blade body 2. A third protrusion 33 is provided on the side of the first protrusion 31 near the inner circumference of the saw blade body 2. A fourth protrusion 34 is provided on the side of the second protrusion 32 near the inner circumference of the saw blade body 2. A fifth protrusion 35 is provided on the side of the third protrusion 33 near the inner circumference of the saw blade body 2. A sixth protrusion 36 is provided on the side of the fourth protrusion 34 near the inner circumference of the saw blade body 2. The second cutting group includes a seventh protrusion 41, an eighth protrusion 42, a ninth protrusion 43, a tenth protrusion 44, an eleventh protrusion 45, and a twelfth protrusion 46. The seventh protrusion 41 and the eighth protrusion 42 are provided with... A fifth groove 47 is provided between the seventh protrusion 41 and the eighth protrusion 42 on the outer edge of the saw blade body 2. The first groove 37 is U-shaped, and the opening of the fifth groove 47 faces the inner circumference of the saw blade body 2. A ninth protrusion 43 is provided on the side of the seventh protrusion 41 near the inner circumference of the saw blade body 2. A tenth protrusion 44 is provided on the side of the eighth protrusion 42 near the inner circumference of the saw blade body 2. An eleventh protrusion 45 is provided on the side of the ninth protrusion 43 near the inner circumference of the saw blade body 2. A twelfth protrusion 46 is provided on the side of the tenth protrusion 44 near the inner circumference of the saw blade body 2. The first and second slicing groups are formed by sintering the first slicing group with the base 1 and the saw blade body 2 using a steel sintering mold with a special pattern. Both the first and second slice groups have a frosted surface for polishing during cutting. The first and second slice groups are inclined in the same direction as the rotation of the saw blade body 2 during use, i.e., the inclination direction of the first and second slice groups from the outside to the inside is counterclockwise. The cross arrangement of the first and second slice groups and the setting of different protrusions enhance the toughness of the saw blade. The surface of the protrusions can be better polished during cutting, and the arrangement of different protrusions can reduce the cutting resistance, making the saw blade sharper, increasing the service life of the saw blade, making the cut surface of the cut object smoother, improving the cutting quality, and greatly improving the sharpness of the saw blade.

[0063] Specifically, further, the heights of the first protrusion 31, the third protrusion 33, and the fifth protrusion 35 increase sequentially; the heights of the second protrusion 32, the fourth protrusion 34, and the sixth protrusion 36 increase sequentially; the heights of the seventh protrusion 41, the ninth protrusion 43, and the eleventh protrusion 45 increase sequentially; the heights of the eighth protrusion 42, the tenth protrusion 44, and the twelfth protrusion 46 increase sequentially; the heights of the first protrusion 31, the second protrusion 32, the third protrusion 33, the fourth protrusion 34, the fifth protrusion 35, the sixth protrusion 36, and the seventh protrusion 35 increase sequentially. The cross-sections of the eighth protrusion, the ninth protrusion, the tenth protrusion, the eleventh protrusion, the eleventh protrusion, and the twelfth protrusion are trapezoidal, and they increase in height from the outer circumference to the inner circumference of the saw blade body 2. The different protrusions increase in height from the outer circumference to the inner circumference of the saw blade body 2, so that the diamond saw blade formed by the saw blade body 2, the first cutting group, and the second cutting group is thin on the outside and thick on the inside. When cutting materials, it is easier to enter the blade and form a cutting surface. The entry is sharp and the entry resistance is significantly reduced, thereby achieving a sharp and efficient cutting effect.

[0064] Specifically, the first slicing group also includes a second groove 38, a third groove 39, and a fourth groove 310; the second groove 38 is located on one side of the first protrusion 31, and the two ends of the second groove 38 respectively separate the first protrusion 31 from the third protrusion 33, the second protrusion 32 from the fourth protrusion 34; the third groove 39 is located on one side of the third protrusion 33, and the two ends of the third groove 39 respectively separate the third protrusion 33 from the fifth protrusion 35, the fourth protrusion 34 from the sixth protrusion 36; the fourth groove 310 is located on one side of the third protrusion 33, and the two ends of the fourth groove 310 respectively separate the third protrusion 33 from the fourth protrusion 34, the fifth protrusion 35 from the sixth protrusion 36; the second slicing group also includes a sixth groove 48, a seventh groove 49, and an eighth groove 410; the sixth groove 48 is located on one side of the seventh protrusion 41, and the two ends of the sixth groove 48 respectively separate the seventh protrusion 41 from the ninth protrusion 43, the eighth protrusion 42 from the tenth protrusion 44; The seventh groove 49 is located on one side of the ninth protrusion 43, and the two ends of the seventh groove 49 respectively separate the ninth protrusion 43 from the eleventh protrusion 45, the tenth protrusion 44 and the twelfth protrusion 46; the eighth groove 410 is located on one side of the ninth protrusion 43, and the two ends of the eighth groove 410 respectively separate the ninth protrusion 43 from the tenth protrusion 44, the eleventh protrusion 45 and the twelfth protrusion 46; the third protrusion 33 and the fourth protrusion 34 are arc-shaped on the side near the inner circumference of the saw blade body 2, and the fifth protrusion 35 and the second protrusion 32 are arc-shaped on the side away from the inner circumference of the saw blade body 2. The arrangement and interconnection of the first groove 37, the second groove 38, the third groove 39, the fourth groove 310, the fifth groove 47, the sixth groove 48, the seventh groove 49 and the eighth groove 410 can better guide the chips during the cutting process and avoid blockage caused by the absence of chip removal channels or the chip removal channels being too small, which would affect the cutting effect.

[0065] Specifically, the base 1 is made of steel and is circular. The center of the base 1 is provided with a mounting hole 11. The base 1 is provided with multiple stress holes 12. The stress holes 12 are evenly distributed in a circular array with the mounting hole 11 as the center. By setting the stress holes 12, the toughness and impact resistance of the base 1 can be improved. The outer side of the base 1 is provided with evenly distributed protrusions 13, and the outer side of the protrusions 13 is arc-shaped. The height of the protrusions 13 is 2 / 3 of the height of the base 1, which can improve the pressing strength between the base 1 and the saw blade body 2.

[0066] The working principle of this utility model is as follows: After the saw blade is installed through the mounting hole 11, the base 1 drives the saw blade body 2 to cut the workpiece. The different patterns and grooves formed by the cross arrangement of the first and second slice groups can reduce the cutting resistance during cutting and discharge the debris in time to avoid blockage, so that the saw blade has a high sharpness and improves the utilization rate of the saw blade.

[0067] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A diamond saw blade with high sharpness, comprising a substrate (1) and a saw blade body (2), characterized in that: The saw blade body (2) is disposed on the outer circumference of the base (1); The saw blade body (2) is provided with multiple first slice groups and second slice groups, which are arranged in a crisscross pattern along the circumference of the saw blade body (2). A separating groove (5) is provided between adjacent first slice groups and second slice groups; The first slice group includes a first protrusion (31), a second protrusion (32), a third protrusion (33), a fourth protrusion (34), a fifth protrusion (35), and a sixth protrusion (36); The first protrusion (31) and the second protrusion (32) are located on the outer edge of the saw blade body (2); A first groove (37) is provided between the first protrusion (31) and the second protrusion (32). The first groove (37) is U-shaped, and the opening of the first groove (37) faces the inner circumference of the saw blade body (2). The third protrusion (33) is located on the side of the first protrusion (31) near the inner circumference of the saw blade body (2); The fourth protrusion (34) is located on the side of the second protrusion (32) near the inner circumference of the saw blade body (2); The fifth protrusion (35) is located on the side of the third protrusion (33) near the inner circumference of the saw blade body (2); The sixth protrusion (36) is located on the side of the fourth protrusion (34) near the inner circumference of the saw blade body (2); The second slice group includes a seventh protrusion (41), an eighth protrusion (42), a ninth protrusion (43), a tenth protrusion (44), an eleventh protrusion (45), and a twelfth protrusion (46); The seventh protrusion (41) and the eighth protrusion (42) are located on the outer edge of the saw blade body (2); A fifth groove (47) is provided between the seventh protrusion (41) and the eighth protrusion (42). The first groove (37) is U-shaped, and the opening of the fifth groove (47) faces the inner circumference of the saw blade body (2). The ninth protrusion (43) is located on the side of the seventh protrusion (41) near the inner circumference of the saw blade body (2); The tenth protrusion (44) is located on the side of the eighth protrusion (42) near the inner circumference of the saw blade body (2); The eleventh protrusion (45) is located on the side of the ninth protrusion (43) near the inner circumference of the saw blade body (2); The twelfth protrusion (46) is located on the side of the tenth protrusion (44) near the inner circumference of the saw blade body (2).

2. The high-sharpness diamond saw blade according to claim 1, characterized in that: The heights of the first protrusion (31), the third protrusion (33), and the fifth protrusion (35) increase sequentially; The heights of the second protrusion (32), the fourth protrusion (34), and the sixth protrusion (36) increase sequentially; The heights of the seventh protrusion (41), the ninth protrusion (43), and the eleventh protrusion (45) increase sequentially. The heights of the eighth protrusion (42), the tenth protrusion (44), and the twelfth protrusion (46) increase sequentially; The first protrusion (31), the second protrusion (32), the third protrusion (33), the fourth protrusion (34), the fifth protrusion (35), the sixth protrusion (36), the seventh protrusion (41), the eighth protrusion (42), the ninth protrusion (43), the tenth protrusion (44), the eleventh protrusion (45), and the twelfth protrusion (46) have trapezoidal cross sections and increase in height from the outer circumference to the inner circumference of the saw blade body (2).

3. The high-sharpness diamond saw blade according to claim 1, characterized in that: The first slice group also includes a second groove (38), a third groove (39) and a fourth groove (310); The second groove (38) is provided on one side of the first protrusion (31), and the two ends of the second groove (38) respectively separate the first protrusion (31) and the third protrusion (33), the second protrusion (32) and the fourth protrusion (34); The third groove (39) is provided on one side of the third protrusion (33), and the two ends of the third groove (39) respectively separate the third protrusion (33) from the fifth protrusion (35), the fourth protrusion (34) from the sixth protrusion (36); The fourth groove (310) is located on one side of the third protrusion (33), and the two ends of the fourth groove (310) respectively separate the third protrusion (33) and the fourth protrusion (34), the fifth protrusion (35) and the sixth protrusion (36).

4. The high-sharpness diamond saw blade according to claim 3, characterized in that: The second slice group also includes a sixth groove (48), a seventh groove (49) and an eighth groove (410); The sixth groove (48) is provided on one side of the seventh protrusion (41), and the two ends of the sixth groove (48) respectively separate the seventh protrusion (41) from the ninth protrusion (43), the eighth protrusion (42) from the tenth protrusion (44); The seventh groove (49) is located on one side of the ninth protrusion (43), and the two ends of the seventh groove (49) respectively separate the ninth protrusion (43) from the eleventh protrusion (45), the tenth protrusion (44) and the twelfth protrusion (46); The eighth groove (410) is located on one side of the ninth protrusion (43), and the two ends of the eighth groove (410) respectively separate the ninth protrusion (43) from the tenth protrusion (44), the eleventh protrusion (45) and the twelfth protrusion (46).

5. The high-sharpness diamond saw blade according to claim 4, characterized in that: The first and second slicing groups are inclined and the inclination direction is consistent with the rotation direction of the saw blade body (2) during use.

6. The high-sharpness diamond saw blade according to claim 1, characterized in that: The third protrusion (33) and the fourth protrusion (34) are arc-shaped on the side of the inner circumference of the saw blade body (2); The fifth protrusion (35) and the second protrusion (32) are arc-shaped on the side away from the inner circumference of the saw blade body (2).

7. The high-sharpness diamond saw blade according to claim 1, characterized in that: The base (1) is made of steel and is circular, and the base (1) has a mounting hole (11) in the center.

8. The high-sharpness diamond saw blade according to claim 7, characterized in that: The substrate (1) is provided with a plurality of stress holes (12), which are evenly distributed in a circular array with the mounting hole (11) as the center.

9. The high-sharpness diamond saw blade according to claim 8, characterized in that: The outer side of the substrate (1) is provided with uniformly distributed protrusions (13), and the outer side of the protrusions (13) is arc-shaped.

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