US20050188981A1 - Diamond blade having rim type cutting tip for use in grinding or cutting apparatus - Google Patents
Diamond blade having rim type cutting tip for use in grinding or cutting apparatus Download PDFInfo
- Publication number
- US20050188981A1 US20050188981A1 US11/071,521 US7152105A US2005188981A1 US 20050188981 A1 US20050188981 A1 US 20050188981A1 US 7152105 A US7152105 A US 7152105A US 2005188981 A1 US2005188981 A1 US 2005188981A1
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- US
- United States
- Prior art keywords
- diamond
- cutting
- blade
- rim type
- cutting tip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 169
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 163
- 239000010432 diamond Substances 0.000 title claims abstract description 163
- 230000000994 depressogenic effect Effects 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 27
- 239000010410 layer Substances 0.000 claims 6
- 239000002356 single layer Substances 0.000 claims 1
- 238000011109 contamination Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 44
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910000906 Bronze Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- -1 etc. Substances 0.000 description 3
- 239000010438 granite Substances 0.000 description 3
- 239000004579 marble Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/12—Saw-blades or saw-discs specially adapted for working stone
- B28D1/121—Circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
Definitions
- the present invention relates to a diamond blade for use in apparatus such as a cutting saw machine for grinding or cutting crushable materials such as brick, concrete, granite, marble, etc., and more particularly to a diamond blade having rim type cutting tip in which at least two diamond layers are longitudinally disposed along the rotation direction of the blade to form microscopic linear cutting grooves to cause portions of the crushable materials between the cutting grooves to be crushed in chips of relative large size by non-diamond portion of the cutting tip during cutting operation and thereby to enhance cutting ability of the blade and to prevent crushed chips dispersing easily in the air and giving rise to the bad effects to user's health and the contamination of environment.
- a conventional diamond blade 1 for use in apparatus for cutting crushable materials such as cutting saw machine comprises steel wheel body 2 connected with a shaft of electric motor, and rim type cutting tip 3 disposed circumferentially and fixedly on the steel wheel body 2 , as shown in FIG. 1 .
- Rim type cutting tip 3 is fabricated by mixing particles of diamond and grinding materials, particles of metals composing of cobalt, nickel, bronze, copper, etc., and particles of resin or ceramic and forming a rim of given shape out of the mixed particles by plastic working including press work.
- diamond particles 4 are randomly distributed in the inside and surfaces of rim type cutting tip 3 as shown in FIG. 3 .
- upper surface of rim type cutting tip 3 contacts with corresponding surface portion of crushable materials 18 to be cut and grinds it to form cutting slot 16 in crushable materials during cutting operation as shown in FIG. 3 .
- Minute chips produced by cutting operation of rim type cutting tip 3 are gathered in cutting slot 16 and then discharged from there to outside by the rotation of rim type cutting tip 3 .
- both edges 15 of upper surface contacting with side wall and bottom of cutting slot 16 formed in crushable materials 18 during cutting operation are defaced faster than center 17 thereof contacting only with bottom of cutting slot 16 of crushable materials 18 .
- the contacting area between upper surface of rim type cutting tip 3 and crushable materials 18 to be cut is enlarged to increase resistance of crushable materials 18 and thereby be able to induce poor cutting and decrease cutting ability and life of blade 1 .
- a diamond blade for use in apparatus for grinding or cutting crushable materials comprises a wheel body connected with a shaft of electric motor, and rim type cutting tip for grinding or cutting crushable materials disposed on the circumference of wheel body and composed of at least two diamond layers longitudinally disposed parallel with the rotation direction of the blade in which diamond particles are included, and non-diamond portion disposed between the diamond layers in which diamond particles are not included.
- diamond layers are disposed each other at predetermined intervals perpendicular with the rotation direction of the blade.
- diamond layers are disposed only on inner and outer surface of rim type cutting tip.
- diamond particles in each diamond layer of rim type cutting tip are distributed in a given pattern or arrangement such a single or double layer figure with grid shaped spots.
- diamond particles can be distributed in the density lower than that of diamond layers.
- a diamond blade for use in apparatus for grinding or cutting crushable materials comprises a wheel body connected with a shaft of electric motor, and rim type cutting tip for grinding or cutting crushable materials disposed on the circumference of wheel body and composed of non-diamond portion having a plurality of depressed portions disposed at predetermined intervals to cross each other in inner and outer surfaces of non-diamond portion, and a plurality of diamond layers longitudinally disposed parallel with the rotation direction of the blade respectively on bottom surfaces of depressed portions of non-diamond portion and inner and outer surfaces of non-diamond portion divided by depressed portions thereof.
- bottom surfaces of depressed portions of non-diamond portion are positioned in the plane forming the center between inner and outer surfaces of non-diamond portion to let diamond layers disposed thereon to form one cutting line during the cutting operation of blade.
- the depth of all bottom surfaces of depressed portions of inner and outer surfaces of non-diamond portion can be set up to be less than a half of the thickness of non-diamond portion to let diamond layers disposed thereon to form at least two linear cutting line during the cutting operation of blade.
- FIG. 1 is a front view of one conventional diamond blade for use in cutting saw machine in which diamond particles are randomly distributed in rim type cutting tip thereof;
- FIG. 2 is a front view of the other conventional diamond blade in which diamond particles are randomly distributed in rim type cutting tip thereof and a plurality of depressed portions are disposed in inner and outer surfaces of rim type cutting tip thereof;
- FIG. 3 is a partial cross-sectional view of the conventional diamond blade shown in FIG. 1 to illustrate state in which rim type cutting tip thereof is operated;
- FIG. 4 is a perspective view of diamond blade for use in cutting saw machine according to one preferred embodiment of the present invention which two diamond layers are longitudinally disposed respectively in inner and outer surfaces of non-diamond portion of rim type cutting tip to form two microscopic linear cutting grooves in the crushable materials during cutting operation;
- FIG. 5 is a partial cross-sectional view of the diamond blade of the present invention taken along line A-A of FIG. 4 to illustrate state which rim type diamond cutting tip is operated;
- FIG. 6 is a perspective view of a diamond blade for use in cutting saw machine according to the other embodiment of the present invention in which a plurality of diamond layers are longitudinally disposed respectively on bottom surfaces of depressed portions of non-diamond portion and inner and outer surfaces of non-diamond portion and the depth of bottom surfaces of depressed portions of non-diamond portion is a half of the entire thickness of non-diamond portion;
- FIG. 7 is a partial cross-sectional view of the diamond blade of the present invention overlapping cross-sections taken along lines B-B and C-C of FIG. 6 to illustrate state which rim type diamond cutting tip is operated;
- FIG. 8 is a perspective view of diamond blade of the present invention which the depth of bottom surfaces of depressed portions of non-diamond portion is less than a half of the entire thickness of non-diamond portion;
- FIG. 9 is a partial perspective view of diamond blade of the present invention shown in FIG. 8 ;
- FIG. 10 is a partial cross-sectional view of the diamond blade of the present invention overlapping cross-sections taken along lines E-E and F-F of FIG. 9 to illustrate state which rim type diamond cutting tip is operated.
- diamond blade 31 having rim type cutting tip 33 according to one preferred embodiment of the present invention for use in apparatus for grinding or cutting crushable materials such as cutting saw machine.
- Diamond blade 31 for cutting saw machine comprises wheel body 32 connected with a shaft of electric motor, and rim type cutting tip 33 for cutting or grinding crushable materials fixedly disposed circumferentially on the wheel body 32 .
- Rim type cutting tip 33 comprises two thin diamond layers 38 and 38 ′ longitudinally disposed respectively in inner and outer surfaces thereof parallel with the rotation direction of the blade 31 , and non-diamond portion 35 disposed between two diamond layers 38 and 38 ′, as shown in FIGS. 4 and 5 .
- Thin diamond layers 38 and 38 ′ are composed of particles of diamond and grinding material, particles of metals composing of cobalt, nickel, bronze, copper, etc., and particles of resin or ceramic.
- Particles 39 of diamond in thin diamond layers 38 and 38 ′ are randomly distributed, or in a given pattern or arrangement such a single or double layer figure with grid shaped spots to reduce the amount of diamond particles used.
- Non-diamond portion 35 is composed of grinding materials, metals such as cobalt, nickel, bronze, copper, etc., and resin or ceramic.
- Thin diamond layers 38 and 38 ′ function to prevent edge area of upper surface of rim type cutting tip 33 defacing and to form two microscopic linear cutting grooves 37 ′ and 37 ′′ in the crushable materials 37 during cutting operation, as shown in FIG. 5 .
- portion 40 of crushable materials 37 between two cutting grooves 37 ′ and 37 ′′ can be easily crushed by small friction and rotation impact power of non-diamond portion 35 and thereby non-diamond portion 35 of rim type cutting tip 33 is able to produce cutting chips with relative large size during cutting operation so that those chips are easily discharged outside with reducing the friction with rim type cutting tip 33 of blade, thereby to increase cutting ability and to prevent it dispersing in the air.
- rim type cutting tip 33 can be substituted by cutting tip composed of three or four thin diamond layers longitudinally disposed therein parallel with the rotation direction of the blade respectively to form three or four microscopic linear cutting grooves in the crushable materials during cutting operation, and non-diamond portions disposed between the three or four diamond layers.
- the diamond layers are each other disposed at predetermined intervals perpendicular with the rotation direction of the blade between non-diamond portions of cutting tip.
- portion of crushable materials between the microscopic linear cutting grooves can be easily crushed by friction and rotation impact power smaller than that of non-diamond portion 35 of rim type cutting tip 33 having two thin diamond layers 38 and 38 ′.
- diamond particles can be distributed in the density lower than that of diamond layers of rim type cutting tip.
- diamond blade 41 according to the other preferred embodiment of the present invention for use in apparatus for cutting and drilling crushable materials such as cutting saw machine.
- Diamond blade 41 for cutting saw machine comprises wheel body 42 connected with a shaft of electric motor, and rim type cutting tip 43 disposed fixedly on the circumference of wheel body Rim type cutting tip 43 has non-diamond portion 45 having a plurality of depressed portions 44 disposed at predetermined intervals to cross each other in inner and outer surfaces of non-diamond portion 45 .
- Rim type cutting tip 43 further includes a plurality of diamond layers 48 , 48 ′, and 48 ′′ longitudinally disposed parallel with the rotation direction of the blade 41 respectively on bottom surfaces of depressed portions 44 of non-diamond portion 45 and inner and outer divided surfaces of non-diamond portion 45 divided by depressed portions 44 , as shown in FIG. 6 .
- Bottom surfaces of depressed portions 44 of non-diamond portion 45 are positioned on the plane forming the center between inner and outer surfaces of non-diamond portions 45 to let diamond layers 48 ′ disposed thereon to form one microscopic linear cutting groove 47 ′′ in crushable materials 47 during the cutting operation of blade 41 , as shown in FIG. 7 .
- diamond layers 48 , 48 ′, and 48 ′′ on bottom surfaces of depressed portions 44 of non-diamond portion 45 and inner and outer surfaces of non-diamond portion 45 form three microscopic linear cutting grooves 47 ′, 47 ′′, 47 ′ ′′ in crushable materials 47 to let the protruded portions 50 and 50 ′ of crushable materials 47 between the microscopic linear cutting grooves 47 , 47 ′, 47 ′′ to be easily crushed by small friction and rotation impact power of non-diamond portion 45 during the cutting operation of blade 41 , as shown in FIG. 7 .
- diamond particles can be distributed in the density lower than that of diamond layers 48 , 48 ′ and 48 ′′.
- the depth of bottom surfaces of depressed portions 54 in non-diamond portion 55 can be less than a half of the entire thickness of non-diamond portion 55 to let diamond layers 58 ′ and 58 ′′ disposed thereon to form two microscopic linear cutting grooves 57 ′′ and 57 ′′ ′ in crushable materials 57 during the cutting operation of blade 51 , as shown in FIG. 10 .
- diamond layers 58 , 58 ′, 58 ′′, and 58 ′′ ′ on inner and outer surfaces of non-diamond portion 55 and bottom surfaces of depressed portions 54 thereof form four microscopic linear cutting grooves 57 ′, 57 ′′, 57 ′ ′ and 57 ′′ ′′ in crushable materials 57 to let protruded portions 60 , 60 ′ and 60 ′′ of crushable materials 57 between the cutting grooves 57 ′, 57 ′′, 57 ′ ′ and 57 ′′ ′′ to be easily crushed by small friction and rotation impact power of non-diamond portions 55 during the cutting operation of blade 51 , as shown in FIG. 10 .
- FIG. 4 there is illustrated the operation of diamond blades 31 of one embodiment of the present invention which two thin diamond layers 38 and 38 ′ are longitudinally disposed respectively in inner and outer surfaces of rim type cutting tip 33 .
- wheel body 32 is rotated by an electric motor connected with a shaft thereof to cut crushable materials 37 such as brick, concrete, granite, marble, etc.
- cutting tip 33 begins to grind crushable materials 37 to form a cutting slot 36 therein along a predetermined line thereon.
- portion 40 of crushable materials 37 therebetween is weakened and easily crushed by small friction and rotation impact power of non-diamond portion 35 .
- non-diamond portion 35 of cutting tip 33 is able to produce cutting chips with relative large size and produced chips are easily discharged outside with reducing the friction with cutting tip 33 of blade 31 , thereby to increase cutting ability and to prevent produced chips dispersing in the air.
- FIGS. 7 and 10 there are illustrated the operation of diamond blades 41 and 51 of the other embodiment of the present invention.
- diamond blades 41 and 51 are same that of the diamond blade 31 of embodiment noted above expect that diamond layers 48 , 48 ′′, and 48 ′′, or 58 , 58 ′, 58 ′′, 58 ′′ ′, and 58 ′′ ′′ on inner and outer surfaces of non-diamond portion 45 or 55 and bottom surfaces of depressed portions 44 or 54 form three or four linear cutting grooves 47 ′, 47 ′′, and 47 ′′ ′, or 57 ′, 57 ′′, 57 ′ ′, and 57 ′′ ′′ in crushable materials 47 or 57 .
- the present invention provides a diamond blade having rim type cutting tip which at least two diamond layers are longitudinally disposed along the rotation direction of the blade to form at least two microscopic linear cutting grooves in the crushable materials during cutting operation and thereby to cause portions of crushable materials between the cutting grooves to be easily crushed by non-diamond portions of cutting tip to enhance cutting ability of the blade.
- the present invention provides a diamond blade having a structure which cutting tip are able to produce cutting chips with relative large size during cutting operation so that those chip are easily discharged outside with reducing the friction with cutting tip of blade, thereby to increase cutting ability and to prevent it dispersing in the air and giving rise to the bad effects to user's health and the contamination of environment.
- the present invention provides a diamond blade having a rim type cutting tip which diamond particles in diamond layer thereof are distributed in a given pattern to reduce the amount of diamond particles used and thereby reduce the manufacturing cost of blade.
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- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
A diamond blade having a rim type cutting tip for an apparatus such as cutting saw machine having a structure which rim type cutting tip is able to produce cutting chips with relative large size during the cutting operation so that those chips are easily discharged outside with reducing the friction with the rim type cutting tip of the diamond blade, thereby it increases cutting ability and prevents the chips from dispersing in the air and from causing the bad affects to user's health and the contamination of environment. The diamond blade comprises a wheel body and a rim type cutting tip for cutting or grinding workpieces, which is disposed on the circumference of the wheel body.
Description
- The present invention relates to a diamond blade for use in apparatus such as a cutting saw machine for grinding or cutting crushable materials such as brick, concrete, granite, marble, etc., and more particularly to a diamond blade having rim type cutting tip in which at least two diamond layers are longitudinally disposed along the rotation direction of the blade to form microscopic linear cutting grooves to cause portions of the crushable materials between the cutting grooves to be crushed in chips of relative large size by non-diamond portion of the cutting tip during cutting operation and thereby to enhance cutting ability of the blade and to prevent crushed chips dispersing easily in the air and giving rise to the bad effects to user's health and the contamination of environment.
- A conventional diamond blade 1 for use in apparatus for cutting crushable materials such as cutting saw machine comprises
steel wheel body 2 connected with a shaft of electric motor, and rimtype cutting tip 3 disposed circumferentially and fixedly on thesteel wheel body 2, as shown inFIG. 1 . Rimtype cutting tip 3 is fabricated by mixing particles of diamond and grinding materials, particles of metals composing of cobalt, nickel, bronze, copper, etc., and particles of resin or ceramic and forming a rim of given shape out of the mixed particles by plastic working including press work. - Thus,
diamond particles 4 are randomly distributed in the inside and surfaces of rimtype cutting tip 3 as shown inFIG. 3 . - In the blade 1, upper surface of rim
type cutting tip 3 contacts with corresponding surface portion ofcrushable materials 18 to be cut and grinds it to formcutting slot 16 in crushable materials during cutting operation as shown inFIG. 3 . - Minute chips produced by cutting operation of rim
type cutting tip 3 are gathered incutting slot 16 and then discharged from there to outside by the rotation of rimtype cutting tip 3. - However, since the blade 1, i.e., upper surface of rim
type cutting tip 3 has same shape and material composition on the whole, bothedges 15 of upper surface contacting with side wall and bottom ofcutting slot 16 formed incrushable materials 18 during cutting operation are defaced faster thancenter 17 thereof contacting only with bottom ofcutting slot 16 ofcrushable materials 18. - Accordingly, the contacting area between upper surface of rim
type cutting tip 3 andcrushable materials 18 to be cut is enlarged to increase resistance ofcrushable materials 18 and thereby be able to induce poor cutting and decrease cutting ability and life of blade 1. - Further, since size of chips produced during cutting operation is very minute, these chips are easy to remain in
cutting slot 16 ofcrushable materials 18 to prevent upper surface of rimtype cutting tip 3 grinding bottom ofcutting slot 16 and thereby decrease cutting ability. Also, in case of those minute chips discharged fromcutting slot 16 are dispersed in the air, it gave rise to the bad effects to user's health and the contamination of environment. - To improve these problem, there has been proposed a
diamond blade 11 that a plurality of depressed portions 19 are at given intervals formed in inner and outer surfaces of rimtype cutting tip 13, as shown inFIG. 2 . - By virtue of this blade, discharging of minute chips remaining in cutting slot of crushable materials causing rim type cutting tip to be defaced during cutting operation has been improved, but defacement of both edges of upper surface to induce poor cutting and decrease cutting ability and life of blade, producing very minute chips to decrease cutting ability, and dispersing produced minute chips in the air to give rise to the bad effects to user's health and the contamination of environment are still remained in problems to solve.
- It is an object of the present invention to provide a diamond blade for use in apparatus such as a cutting saw machine for cutting crushable materials such as brick, concrete, granite, marble, etc., having rim type cutting tip in which at least two diamond layers are longitudinally disposed along the rotation direction of the blade to form microscopic cutting grooves in the crushable materials during cutting operation and thereby to cause portion of crushable materials between the cutting grooves to be easily crushed by non-diamond portion of the rim type cutting tip to enhance cutting ability of the blade.
- It is another object of the present invention to provide a diamond blade for use in apparatus such as cutting saw machine having a structure which rim type cutting tip is able to produce cutting chips with relative large size during cutting operation so that those chips are easily discharged outside with reducing the friction with cutting tip of blade, thereby to increase cutting ability and to prevent those chips dispersing in the air and giving rise to the bad effects to user's health and the contamination of environment.
- It is the other object of the present invention to provide a diamond blade or use in apparatus such as cutting saw machine having rim type cutting tip which diamond particles in diamond layer thereof are distributed in a given pattern to reduce the amount of diamond particles used and thereby reduce the manufacturing cost of blade.
- To accomplish these objects, a diamond blade for use in apparatus for grinding or cutting crushable materials according to the present invention comprises a wheel body connected with a shaft of electric motor, and rim type cutting tip for grinding or cutting crushable materials disposed on the circumference of wheel body and composed of at least two diamond layers longitudinally disposed parallel with the rotation direction of the blade in which diamond particles are included, and non-diamond portion disposed between the diamond layers in which diamond particles are not included.
- In this embodiment of the present invention, diamond layers are disposed each other at predetermined intervals perpendicular with the rotation direction of the blade.
- It is desirable that diamond layers are disposed only on inner and outer surface of rim type cutting tip.
- Alternatively, diamond particles in each diamond layer of rim type cutting tip are distributed in a given pattern or arrangement such a single or double layer figure with grid shaped spots.
- Also, in the non-diamond portion of rim type cutting tip, diamond particles can be distributed in the density lower than that of diamond layers.
- In the other embodiment of the present invention, a diamond blade for use in apparatus for grinding or cutting crushable materials comprises a wheel body connected with a shaft of electric motor, and rim type cutting tip for grinding or cutting crushable materials disposed on the circumference of wheel body and composed of non-diamond portion having a plurality of depressed portions disposed at predetermined intervals to cross each other in inner and outer surfaces of non-diamond portion, and a plurality of diamond layers longitudinally disposed parallel with the rotation direction of the blade respectively on bottom surfaces of depressed portions of non-diamond portion and inner and outer surfaces of non-diamond portion divided by depressed portions thereof.
- In this embodiment of the present invention, it is desirable that bottom surfaces of depressed portions of non-diamond portion are positioned in the plane forming the center between inner and outer surfaces of non-diamond portion to let diamond layers disposed thereon to form one cutting line during the cutting operation of blade.
- Also, the depth of all bottom surfaces of depressed portions of inner and outer surfaces of non-diamond portion can be set up to be less than a half of the thickness of non-diamond portion to let diamond layers disposed thereon to form at least two linear cutting line during the cutting operation of blade.
- The above objects and other advantages of the present invention will become more apparent by describing in detail preferred embodiments thereof with reference to the attached drawings in which:
-
FIG. 1 is a front view of one conventional diamond blade for use in cutting saw machine in which diamond particles are randomly distributed in rim type cutting tip thereof; -
FIG. 2 is a front view of the other conventional diamond blade in which diamond particles are randomly distributed in rim type cutting tip thereof and a plurality of depressed portions are disposed in inner and outer surfaces of rim type cutting tip thereof; -
FIG. 3 is a partial cross-sectional view of the conventional diamond blade shown inFIG. 1 to illustrate state in which rim type cutting tip thereof is operated; -
FIG. 4 is a perspective view of diamond blade for use in cutting saw machine according to one preferred embodiment of the present invention which two diamond layers are longitudinally disposed respectively in inner and outer surfaces of non-diamond portion of rim type cutting tip to form two microscopic linear cutting grooves in the crushable materials during cutting operation; -
FIG. 5 is a partial cross-sectional view of the diamond blade of the present invention taken along line A-A ofFIG. 4 to illustrate state which rim type diamond cutting tip is operated; -
FIG. 6 is a perspective view of a diamond blade for use in cutting saw machine according to the other embodiment of the present invention in which a plurality of diamond layers are longitudinally disposed respectively on bottom surfaces of depressed portions of non-diamond portion and inner and outer surfaces of non-diamond portion and the depth of bottom surfaces of depressed portions of non-diamond portion is a half of the entire thickness of non-diamond portion; -
FIG. 7 is a partial cross-sectional view of the diamond blade of the present invention overlapping cross-sections taken along lines B-B and C-C ofFIG. 6 to illustrate state which rim type diamond cutting tip is operated; -
FIG. 8 is a perspective view of diamond blade of the present invention which the depth of bottom surfaces of depressed portions of non-diamond portion is less than a half of the entire thickness of non-diamond portion; -
FIG. 9 is a partial perspective view of diamond blade of the present invention shown inFIG. 8 ; and -
FIG. 10 is a partial cross-sectional view of the diamond blade of the present invention overlapping cross-sections taken along lines E-E and F-F ofFIG. 9 to illustrate state which rim type diamond cutting tip is operated. - In several embodiments of this invention described below with reference to the accompanying drawings, the invention is applied to cutting saw machine.
- Referring to
FIG. 4 , there is illustrateddiamond blade 31 having rimtype cutting tip 33 according to one preferred embodiment of the present invention for use in apparatus for grinding or cutting crushable materials such as cutting saw machine. -
Diamond blade 31 for cutting saw machine compriseswheel body 32 connected with a shaft of electric motor, and rimtype cutting tip 33 for cutting or grinding crushable materials fixedly disposed circumferentially on thewheel body 32. - Rim
type cutting tip 33 comprises twothin diamond layers blade 31, and non-diamondportion 35 disposed between twodiamond layers FIGS. 4 and 5 . -
Thin diamond layers -
Particles 39 of diamond inthin diamond layers -
Non-diamond portion 35 is composed of grinding materials, metals such as cobalt, nickel, bronze, copper, etc., and resin or ceramic. -
Thin diamond layers type cutting tip 33 defacing and to form two microscopiclinear cutting grooves 37′ and 37″ in thecrushable materials 37 during cutting operation, as shown inFIG. 5 . Thus, portion 40 ofcrushable materials 37 between twocutting grooves 37′ and 37″ can be easily crushed by small friction and rotation impact power ofnon-diamond portion 35 and thereby non-diamondportion 35 of rimtype cutting tip 33 is able to produce cutting chips with relative large size during cutting operation so that those chips are easily discharged outside with reducing the friction with rimtype cutting tip 33 of blade, thereby to increase cutting ability and to prevent it dispersing in the air. - In this embodiment of the present invention, it is noted that rim
type cutting tip 33 can be substituted by cutting tip composed of three or four thin diamond layers longitudinally disposed therein parallel with the rotation direction of the blade respectively to form three or four microscopic linear cutting grooves in the crushable materials during cutting operation, and non-diamond portions disposed between the three or four diamond layers. - The diamond layers are each other disposed at predetermined intervals perpendicular with the rotation direction of the blade between non-diamond portions of cutting tip.
- In this case, portion of crushable materials between the microscopic linear cutting grooves can be easily crushed by friction and rotation impact power smaller than that of
non-diamond portion 35 of rimtype cutting tip 33 having twothin diamond layers - Also, in the non-diamond portion of rim type cutting tip, diamond particles can be distributed in the density lower than that of diamond layers of rim type cutting tip.
- Referring to
FIGS. 6 and 7 , there are illustrateddiamond blade 41 according to the other preferred embodiment of the present invention for use in apparatus for cutting and drilling crushable materials such as cutting saw machine. -
Diamond blade 41 for cutting saw machine compriseswheel body 42 connected with a shaft of electric motor, and rimtype cutting tip 43 disposed fixedly on the circumference of wheel body Rimtype cutting tip 43 hasnon-diamond portion 45 having a plurality ofdepressed portions 44 disposed at predetermined intervals to cross each other in inner and outer surfaces ofnon-diamond portion 45. - Rim
type cutting tip 43 further includes a plurality ofdiamond layers blade 41 respectively on bottom surfaces ofdepressed portions 44 ofnon-diamond portion 45 and inner and outer divided surfaces ofnon-diamond portion 45 divided bydepressed portions 44, as shown inFIG. 6 . - Bottom surfaces of
depressed portions 44 ofnon-diamond portion 45 are positioned on the plane forming the center between inner and outer surfaces ofnon-diamond portions 45 to letdiamond layers 48′ disposed thereon to form one microscopiclinear cutting groove 47″ incrushable materials 47 during the cutting operation ofblade 41, as shown inFIG. 7 . - Thus,
diamond layers depressed portions 44 ofnon-diamond portion 45 and inner and outer surfaces ofnon-diamond portion 45 form three microscopiclinear cutting grooves 47′, 47″, 47′ ″ incrushable materials 47 to let the protrudedportions crushable materials 47 between the microscopiclinear cutting grooves non-diamond portion 45 during the cutting operation ofblade 41, as shown inFIG. 7 . - Also, in the
non-diamond portion 45 of rimtype cutting tip 43, diamond particles can be distributed in the density lower than that ofdiamond layers - Alternatively, in this embodiment of the present invention, the depth of bottom surfaces of
depressed portions 54 innon-diamond portion 55 can be less than a half of the entire thickness ofnon-diamond portion 55 to letdiamond layers 58′ and 58″ disposed thereon to form two microscopiclinear cutting grooves 57″ and 57″ ′ incrushable materials 57 during the cutting operation ofblade 51, as shown inFIG. 10 . - Thus, in this case,
diamond layers non-diamond portion 55 and bottom surfaces ofdepressed portions 54 thereof form four microscopiclinear cutting grooves 57′, 57″, 57′ ′ and 57″ ″ incrushable materials 57 to let protrudedportions crushable materials 57 between thecutting grooves 57′, 57″, 57′ ′ and 57″ ″ to be easily crushed by small friction and rotation impact power ofnon-diamond portions 55 during the cutting operation ofblade 51, as shown inFIG. 10 . - Operation of diamond blades having rim type cutting tip for use in apparatus such as cutting saw machine according to embodiments of the present invention will de described, hereinafter.
- Referring to
FIG. 4 , there is illustrated the operation ofdiamond blades 31 of one embodiment of the present invention which twothin diamond layers type cutting tip 33. At first, whenwheel body 32 is rotated by an electric motor connected with a shaft thereof to cutcrushable materials 37 such as brick, concrete, granite, marble, etc., cuttingtip 33 begins to grindcrushable materials 37 to form acutting slot 36 therein along a predetermined line thereon. - At this time, since
thin diamond layers ′ including particles 39 of diamond are disposed in inner and outer surfaces ofcutting tip 33, both edges ofcutting tip 33 are defaced less than center thereof and thereby two microscopiclinear cutting grooves 37′ and 37″ are formed in thecutting slot 36 ofcrushable materials 37, as shown inFIG. 5 . - By forming
cutting grooves 37′ and 37″, portion 40 ofcrushable materials 37 therebetween is weakened and easily crushed by small friction and rotation impact power ofnon-diamond portion 35. Thus,non-diamond portion 35 ofcutting tip 33 is able to produce cutting chips with relative large size and produced chips are easily discharged outside with reducing the friction with cuttingtip 33 ofblade 31, thereby to increase cutting ability and to prevent produced chips dispersing in the air. - In this way, by repeating the operation of cutting
tip 33 ofdiamond blade 31, cuttingcrushable materials 37 along the predetermined line thereon is completed. - Referring to
FIGS. 7 and 10 , there are illustrated the operation ofdiamond blades - The operation of these
diamond blades diamond blade 31 of embodiment noted above expect that diamond layers 48, 48″, and 48″, or 58, 58′, 58″, 58″ ′, and 58″ ″ on inner and outer surfaces ofnon-diamond portion depressed portions linear cutting grooves 47′, 47″, and 47″ ′, or 57′, 57″, 57′ ′, and 57″ ″ incrushable materials - As apparent from the foregoing description, it can be appreciated that the present invention provides a diamond blade having rim type cutting tip which at least two diamond layers are longitudinally disposed along the rotation direction of the blade to form at least two microscopic linear cutting grooves in the crushable materials during cutting operation and thereby to cause portions of crushable materials between the cutting grooves to be easily crushed by non-diamond portions of cutting tip to enhance cutting ability of the blade.
- Also, the present invention provides a diamond blade having a structure which cutting tip are able to produce cutting chips with relative large size during cutting operation so that those chip are easily discharged outside with reducing the friction with cutting tip of blade, thereby to increase cutting ability and to prevent it dispersing in the air and giving rise to the bad effects to user's health and the contamination of environment.
- Also, the present invention provides a diamond blade having a rim type cutting tip which diamond particles in diamond layer thereof are distributed in a given pattern to reduce the amount of diamond particles used and thereby reduce the manufacturing cost of blade.
Claims (8)
1-8. (canceled)
9. The diamond blade of claim 1 further comprising:
said non-diamond portion having a plurality of depressed portions, the depressed portions being disposed at predetermined intervals to cross each other on the inner and outer surfaces of the non-diamond portion; and
a plurality of diamond layers longitudinally disposed parallel with the rotation direction of the diamond blade respectively on depressed bottom surfaces of the depressed portions, and on the inner and outer surfaces of the non-diamond portion divided by the depressed portions of the non-diamond portion, wherein the depressed bottom surfaces and the inner and outer surfaces are parallel to the rotation direction of the diamond blade.
10. The diamond blade as claimed in claim 9 , wherein the bottom surfaces of the depressed portions of the non-diamond portion are positioned in a plane between the inner and outer surfaces of the non-diamond portion.
11. The diamond blade as claimed in claim 9 , wherein the depth of the depressed bottom surfaces of the depressed portions surfaces of the non-diamond portion is less than a half of the thickness of the non-diamond portion.
12. The diamond blade as claimed in claim 9 , wherein the diamond particles in each diamond layer of the rim type cutting tip are distributed in a predetermined pattern or arrangement.
13. The diamond blade as claimed in claim 12 , wherein the diamond particles in each diamond layer of the rim type cutting tip are distributed in a single layer with grid shaped spots.
14. The diamond blade as claimed in claim 12 , wherein the diamond particles in each diamond layer of the rim type cutting tip are distributed in a double layer with grid shaped spots.
15. The diamond blade as claimed in claim 9 , wherein the diamond particles in each diamond layer of the rim type cutting tip are randomly distributed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/071,521 US20050188981A1 (en) | 1998-09-03 | 2005-03-03 | Diamond blade having rim type cutting tip for use in grinding or cutting apparatus |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980036321A KR100285413B1 (en) | 1998-09-03 | 1998-09-03 | Rim type diamond blade |
KR1998-36321 | 1998-09-03 | ||
US09/786,307 US6890250B1 (en) | 1998-09-03 | 1999-09-03 | Diamond blade having rim type cutting tip for use in grinding or cutting apparatus |
PCT/KR1999/000514 WO2000013868A1 (en) | 1998-09-03 | 1999-09-03 | Diamond blade having rim type cutting tip for use in grinding or cutting apparatus |
WOPCT/KR99/00514 | 1999-09-03 | ||
US11/071,521 US20050188981A1 (en) | 1998-09-03 | 2005-03-03 | Diamond blade having rim type cutting tip for use in grinding or cutting apparatus |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/786,307 Division US6890250B1 (en) | 1998-09-03 | 1999-09-03 | Diamond blade having rim type cutting tip for use in grinding or cutting apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050188981A1 true US20050188981A1 (en) | 2005-09-01 |
Family
ID=19549497
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/786,307 Expired - Fee Related US6890250B1 (en) | 1998-09-03 | 1999-09-03 | Diamond blade having rim type cutting tip for use in grinding or cutting apparatus |
US11/071,521 Abandoned US20050188981A1 (en) | 1998-09-03 | 2005-03-03 | Diamond blade having rim type cutting tip for use in grinding or cutting apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/786,307 Expired - Fee Related US6890250B1 (en) | 1998-09-03 | 1999-09-03 | Diamond blade having rim type cutting tip for use in grinding or cutting apparatus |
Country Status (10)
Country | Link |
---|---|
US (2) | US6890250B1 (en) |
EP (1) | EP1117514B1 (en) |
JP (1) | JP3923729B2 (en) |
KR (1) | KR100285413B1 (en) |
CN (1) | CN1185087C (en) |
AT (1) | ATE283156T1 (en) |
AU (1) | AU5532899A (en) |
DE (1) | DE69922230T2 (en) |
ES (1) | ES2233068T3 (en) |
WO (1) | WO2000013868A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US7833088B1 (en) | 2006-08-11 | 2010-11-16 | Studer Ronald M | Construction method and tool supporting said method |
US20100326416A1 (en) * | 2008-03-19 | 2010-12-30 | Ronald Schwarz | High speed abrasive cutting blade with simulated teeth |
US20130331016A1 (en) * | 2012-06-11 | 2013-12-12 | Goei Co., Ltd. | Cup type grinding wheel |
US20160129544A1 (en) * | 2013-06-07 | 2016-05-12 | 3M Innovative Properties Company | Method of forming a recess in a substrate, abrasive wheel, and cover |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100285413B1 (en) * | 1998-09-03 | 2001-04-02 | 김세광 | Rim type diamond blade |
TWI238753B (en) * | 2002-12-19 | 2005-09-01 | Miyanaga Kk | Diamond disk for grinding |
KR100597717B1 (en) * | 2005-02-15 | 2006-07-10 | 이화다이아몬드공업 주식회사 | Diamond tool |
ITMO20050005U1 (en) * | 2005-03-23 | 2006-09-21 | Giovanni Ficai | PERFECTED CUTTING WHEEL |
KR100764912B1 (en) * | 2005-04-21 | 2007-10-09 | 이화다이아몬드공업 주식회사 | Cutting Segment for Cutting Tool and Cutting Tools |
US20070180779A1 (en) * | 2006-02-07 | 2007-08-09 | Fang-Chun Yu | Saw blade for diamond tool |
WO2009094377A1 (en) * | 2008-01-22 | 2009-07-30 | Saint-Gobain Abrasives, Inc. | Circular saw blade with offset gullets |
KR20100138359A (en) * | 2009-06-25 | 2010-12-31 | 신한다이아몬드공업 주식회사 | Diamond tools |
US20110073094A1 (en) * | 2009-09-28 | 2011-03-31 | 3M Innovative Properties Company | Abrasive article with solid core and methods of making the same |
EP2509751A4 (en) * | 2009-12-11 | 2015-09-09 | Saint Gobain Abrasives Inc | Abrasive article for use with a grinding wheel |
KR101157569B1 (en) * | 2010-02-12 | 2012-06-19 | 이화다이아몬드공업 주식회사 | Cutting Tool |
KR101101884B1 (en) * | 2010-12-22 | 2012-01-05 | 한국기계연구원 | Actuator, magnetic bearing and magnetic levitation apparatus |
CN102172899A (en) * | 2011-02-17 | 2011-09-07 | 巩亚东 | Novel superspeed point grinding wheel and grinding method thereof |
CN102773806A (en) * | 2012-07-19 | 2012-11-14 | 姜堰市吉祥磨料厂 | Double-molding density resin cutting sheet |
US10351686B2 (en) | 2013-03-13 | 2019-07-16 | Baker Hughes, A Ge Company, Llc | Methods of forming modified thermoplastic structures for down-hole applications |
DE102013110009B3 (en) * | 2013-09-12 | 2015-02-05 | Rhodius Schleifwerkzeuge Gmbh & Co. Kg | cutting tool |
US10932402B2 (en) * | 2016-10-11 | 2021-03-02 | Deere & Company | Wear resistant disk blade and agricultural machine with wear resistant disk blade |
JP6844430B2 (en) * | 2017-06-09 | 2021-03-17 | 信越化学工業株式会社 | Peripheral cutting blade and its manufacturing method |
USD994737S1 (en) | 2020-08-28 | 2023-08-08 | Husqvarna Ab | Cutting blade |
USD995585S1 (en) | 2020-08-28 | 2023-08-15 | Husqvarna Ab | Cutting blade |
USD999265S1 (en) | 2020-08-28 | 2023-09-19 | Husqvarna Ab | Cutting blade |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2361492A (en) * | 1942-10-01 | 1944-10-31 | Rca Corp | Diamond saw and method of making the same |
US2811960A (en) * | 1957-02-26 | 1957-11-05 | Fessel Paul | Abrasive cutting body |
US6890250B1 (en) * | 1998-09-03 | 2005-05-10 | Ehwa Diamond Ind., Co., Ltd. | Diamond blade having rim type cutting tip for use in grinding or cutting apparatus |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2072152A (en) * | 1934-11-27 | 1937-03-02 | Kenneth B Blake | Heat insulating material |
NL42790C (en) * | 1935-02-14 | |||
US3048160A (en) * | 1960-09-26 | 1962-08-07 | Trurun Inc | Attachment of cutting elements to wear resistant blades |
US3353526A (en) | 1963-10-18 | 1967-11-21 | Boart & Hard Metal Products S | Abrasive cutting tools such as saws |
DE2438601A1 (en) * | 1974-08-10 | 1976-02-26 | Winter & Sohn Ernst | Rotating cut-off tools such as slitting wheels - where hard outer layer covers diamond or boron nitride grains in binder matrix |
JPH02298421A (en) * | 1989-05-09 | 1990-12-10 | Kaken:Kk | Structure of tooth part of rotational saw and manufacture thereof |
US6250192B1 (en) * | 1996-11-12 | 2001-06-26 | Micron Technology, Inc. | Method for sawing wafers employing multiple indexing techniques for multiple die dimensions |
KR100285415B1 (en) * | 1998-09-03 | 2001-04-02 | 김세광 | Segment type diamond saw blade |
-
1998
- 1998-09-03 KR KR1019980036321A patent/KR100285413B1/en not_active IP Right Cessation
-
1999
- 1999-09-03 WO PCT/KR1999/000514 patent/WO2000013868A1/en active Application Filing
- 1999-09-03 CN CNB998120480A patent/CN1185087C/en not_active Expired - Fee Related
- 1999-09-03 AT AT99941845T patent/ATE283156T1/en not_active IP Right Cessation
- 1999-09-03 US US09/786,307 patent/US6890250B1/en not_active Expired - Fee Related
- 1999-09-03 ES ES99941845T patent/ES2233068T3/en not_active Expired - Lifetime
- 1999-09-03 DE DE69922230T patent/DE69922230T2/en not_active Expired - Lifetime
- 1999-09-03 EP EP99941845A patent/EP1117514B1/en not_active Expired - Lifetime
- 1999-09-03 AU AU55328/99A patent/AU5532899A/en not_active Abandoned
- 1999-09-03 JP JP2000568655A patent/JP3923729B2/en not_active Expired - Fee Related
-
2005
- 2005-03-03 US US11/071,521 patent/US20050188981A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2361492A (en) * | 1942-10-01 | 1944-10-31 | Rca Corp | Diamond saw and method of making the same |
US2811960A (en) * | 1957-02-26 | 1957-11-05 | Fessel Paul | Abrasive cutting body |
US6890250B1 (en) * | 1998-09-03 | 2005-05-10 | Ehwa Diamond Ind., Co., Ltd. | Diamond blade having rim type cutting tip for use in grinding or cutting apparatus |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7833088B1 (en) | 2006-08-11 | 2010-11-16 | Studer Ronald M | Construction method and tool supporting said method |
US20100326416A1 (en) * | 2008-03-19 | 2010-12-30 | Ronald Schwarz | High speed abrasive cutting blade with simulated teeth |
US20130331016A1 (en) * | 2012-06-11 | 2013-12-12 | Goei Co., Ltd. | Cup type grinding wheel |
US20160129544A1 (en) * | 2013-06-07 | 2016-05-12 | 3M Innovative Properties Company | Method of forming a recess in a substrate, abrasive wheel, and cover |
US10265826B2 (en) * | 2013-06-07 | 2019-04-23 | 3M Innovative Properties Company | Method of forming a recess in a substrate |
Also Published As
Publication number | Publication date |
---|---|
CN1323253A (en) | 2001-11-21 |
EP1117514B1 (en) | 2004-11-24 |
ATE283156T1 (en) | 2004-12-15 |
WO2000013868A1 (en) | 2000-03-16 |
KR100285413B1 (en) | 2001-04-02 |
US6890250B1 (en) | 2005-05-10 |
CN1185087C (en) | 2005-01-19 |
JP3923729B2 (en) | 2007-06-06 |
ES2233068T3 (en) | 2005-06-01 |
JP2002524287A (en) | 2002-08-06 |
AU5532899A (en) | 2000-03-27 |
DE69922230D1 (en) | 2004-12-30 |
KR20000018647A (en) | 2000-04-06 |
DE69922230T2 (en) | 2005-11-24 |
EP1117514A1 (en) | 2001-07-25 |
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