WO2002034468A1 - Procede de regeneration d"une meule - Google Patents

Procede de regeneration d"une meule Download PDF

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Publication number
WO2002034468A1
WO2002034468A1 PCT/JP2001/009374 JP0109374W WO0234468A1 WO 2002034468 A1 WO2002034468 A1 WO 2002034468A1 JP 0109374 W JP0109374 W JP 0109374W WO 0234468 A1 WO0234468 A1 WO 0234468A1
Authority
WO
WIPO (PCT)
Prior art keywords
grinding wheel
grindstone
core
grinding
outer peripheral
Prior art date
Application number
PCT/JP2001/009374
Other languages
English (en)
Japanese (ja)
Inventor
Akihiro Mizuno
Original Assignee
Noritake Co.,Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Noritake Co.,Limited filed Critical Noritake Co.,Limited
Publication of WO2002034468A1 publication Critical patent/WO2002034468A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
    • 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
    • B24D5/02—Wheels in one piece

Definitions

  • the present invention relates to a method for regenerating a grinding wheel.
  • the grinding performance of the grinding wheel is maintained by the autogenous action in which the abrasive grains are crushed or dropped and the cutting surface is regenerated. For this reason, the grinding surface of the grinding wheel recedes as it is used, but usable dimensions of the grinding wheel are determined within a certain range according to the structure of each grinding machine. Therefore, a grinding wheel whose grinding surface has receded to its usage limit is removed from the grinding machine and replaced with a new grinding wheel. Conventionally, such used grinding wheels have been discarded as they are.
  • the grinding wheel Even if the grinding wheel has reached the limit of use, it will remain attached to the grinding machine until it reaches that state, so the mounting part, that is, the supporting part of the grinding wheel, will be a large remaining part. Becomes Therefore, for example, when the entire grinding wheel is composed of a grinding stone structure in which abrasive grains are bonded with a binder, a large amount of abrasive grains are discarded without being used, and expensive abrasive grains are wasted. As a result, the grinding cost increases. In addition, even when the support portion is made of metal, resin, or the like, an increase in grinding cost due to discarding these, though not as much as abrasive grains, cannot be ignored. In addition, since a large amount of waste is generated each time one grinding wheel reaches its use limit, the environmental burden associated with effective use of resources and waste disposal has become a major problem in terms of dogs. Because
  • disc-shaped grinding wheels used for grinding a crankshaft of a vehicle, etc. have a diameter as large as 1 (m) in the initial stage, and have a diameter of 700 (mra) when the use limit is reached. ) Is relatively large and is discarded Material becomes extremely large.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for regenerating a grinding wheel that can effectively use abrasive grains and other resources. Disclosure of the invention
  • the gist of the present invention is to provide a grindstone portion composed of a grindstone structure in which abrasive grains are bonded by a binder, and a resin adhesive to support the grindstone portion.
  • a method of regenerating a grinding wheel provided with a metal supporting portion comprising: (a) a residual portion removing step of removing a remaining portion of the grinding wheel portion of a used grinding wheel from the supporting portion; A grinding wheel part joining step of joining a new grinding stone part to the supporting part from which the grinding stone part has been removed using a resin adhesive.
  • the grinding stone is composed of a metal support and a grindstone joined to it, and when the use limit is reached, the remaining portion of the grindstone is removed from the support in the residual portion removal process. Then, in a grinding wheel part bonding step, a newly manufactured grinding wheel part is bonded to its support part using a resin adhesive, whereby the grinding wheel is reproduced. As a result, only a small part of the grinding stone that remains on the support when it reaches the service limit and is removed therefrom is effectively discarded. Can be used.
  • the grinding wheel portion removing step includes: (a-2) a heating step of heating the grinding wheel at a predetermined temperature higher than a glass transition temperature of the resin adhesive.
  • the resin adhesive is generally softened when heated at a temperature higher than the glass transition temperature, so that the bonding strength between the support portion and the remaining portion k of the grindstone portion is significantly reduced. Therefore, the removal of the remaining portion from the surface of the support portion becomes easier and more reliable, and the regeneration of the grinding wheel becomes easier.
  • the remaining portion can be easily removed, the surface of the supporting portion (particularly, the joining surface of the grindstone portion) is not damaged at that time, and the surface does not change in size due to being cut off. Therefore, the more the number of times the support section can be used (the number of times of reproduction), the more effective use of resources.
  • the bonding surface of the whetstone portion and the support portion is respectively (B-2)
  • the grinding wheel portion bonding step includes: bonding the bonding surface of each of the grinding wheel portion and the support portion to the resin bonding surface. An agent is applied and fitted. This has the advantage that uneven bonding and misalignment are suitably suppressed.
  • the grinding wheel portion is made of a vitrified grinding stone structure in which abrasive grains are bound by an inorganic binder.
  • the strength of the supporting portion is made up of a metal material, so that the grinding wheel is a renewable and high-strength grinding wheel.
  • the grindstone portion forms an annular shape having a predetermined radial thickness, and the support portion is joined to an inner peripheral surface thereof.
  • the grinding wheel portion has a vitrified whetstone structure in which the abrasive grains are bonded with an inorganic binder, and the resin binder has an average particle size of 4.5 to 0.1%. m). In this way, even when regenerating a porous vitrified grinding wheel.
  • the inorganic powder for example, a silica powder containing SiO 2 (quartz) in a mass ratio of about 95 (approximately 95) is preferably used.
  • FIG. 1 is a perspective view showing a vitrified whetstone regenerated or reproducible by a regenerating method according to one embodiment of the present invention.
  • FIG. 2 is a cross-sectional view illustrating a bonding configuration of the vitrified whetstone of FIG.
  • FIG. 3 illustrates a main part of a method of regenerating the vitrified grinding wheel of the embodiment of FIG. It is a process drawing.
  • FIG. 1 is a diagram showing a vitrified grindstone 10 to which a regeneration method according to an embodiment of the present invention is applied.
  • This vitrified whetstone 10 has a disk shape with a size of about 1065 (mm) outer diameter x 20 to 50 (thickness) x inner diameter (hole diameter) 304.8 (band) as a whole.
  • An annular outer grindstone part 12 composed of a vitrified grindstone structure in which the abrasive grains are bonded by an inorganic binder to grind the workpiece, and a similar vitrified grindstone structure composed of
  • the inner peripheral side has a grinding wheel supporting portion, that is, a core 14, which is fixed to exclusively support the outer peripheral grinding stone portion 12.
  • the vitrified grindstone 10 is a reclaimed used grindstone as will be described later, or an unreproduced grindstone capable of such regeneration.
  • the peripheral stone portion 1 2 of Bitorifuaido abrasive structure has been well known, the abrasive grains or abrasive material such as silicon carbide (SiC) quality or fused alumina (Al 2 0 3) quality, oxidation silicon (S ⁇ ) Is a porous vitrified grindstone structure that is bound by a vitreous inorganic binder (vitrifide bond) mainly composed of, for example, vitreous bond wheels and has numerous pores that are continuous or discontinuous.
  • a vitrified whetstone structure at the time of grinding, the abrasive grains on the grinding surface that is in sliding contact with the workpiece are appropriately crushed or dropped, and the cutting edge of the abrasive grains is suitably regenerated.
  • the core 14 is made of an aluminum alloy having an outer diameter of about 700 (mm), a metal material such as steel or steel. That is, in this embodiment, the grindstone portion 12 of the vitrified grindstone 10 is provided in a range from the outer peripheral surface to a diameter of about 700 (mm).
  • the thermal expansion coefficient is 24 X 10- 6 (/ ° C ) about a A by going 8 X 10- 5 (/ ° C ) degree
  • this difference does not particularly affect the strength of the grindstone 10 while the difference in thermal expansion coefficient between steel and iron alloy is While the mass of core 14 increases. Therefore, use steel or steel In this case, for example, a portion having a reduced thickness dimension is provided in the inner peripheral portion of the core 14 in an annular or circumferential uniform distribution.
  • the inner peripheral surface 18 of the outer peripheral grindstone portion 12 is within a range of 1 to 3 degrees with respect to the center line (the axis of the grindstone 10) C.
  • the outer peripheral surface 20 of the core 14 is preferably in the range of 1 to 3 degrees with respect to the center line C, while being formed in a tapered surface inclined at an angle 0 of about 2 degrees. Are formed in a tapered surface inclined at an angle 0 of about 2 °, and the inner peripheral surface of the outer peripheral grinding stone portion 12 .
  • the outer peripheral surface 20 of the core 14 and the outer peripheral surface 20 of the core 14 form an adhesive layer 22.
  • the outer peripheral grindstone portion 12 and the core 14 are integrally bonded to each other by being bonded to each other.
  • the thickness of the adhesive layer 22 is, for example, about 0.05 (mm) to 0.6 (mm), although it is drawn much thicker than it is for easy understanding.
  • the above-mentioned adhesive layer 22 includes a room-temperature curing type resin-based adhesive such as a two-part epoxy resin-based adhesive obtained by mixing aliphatic amine as a curing agent with a bisphenol A-type epoxy resin. For example, a mixture of fine inorganic fillers at a ratio of about 25 (%) is used.
  • the inorganic filler has a composition as shown in Table 1 below and an average particle size of 4.5 to 7.0 (/ m ) Of silica powder is preferably used.
  • Table 1 an average particle size of 4.5 to 7.0 (/ m ) Of silica powder is preferably used.
  • the angle 0 between the inner peripheral surface 18 and the outer peripheral surface 20 is, for example, in the range of 1 to 3 degrees, and preferably in the range of 1.5 to 1.5 degrees. Used for 1. If the angle is less than 5 degrees, it becomes difficult to work with the adhesive and uneven adhesion is likely to occur. When the angle is smaller than 1 degree, the work of interposing the adhesive becomes extremely difficult, and uneven bonding occurs. In addition, when the angle is greater than 2.5 degrees, misalignment between the outer peripheral grindstone portion 12 and the core 14 tends to occur, and when the angle is greater than 3 degrees, the outer peripheral grindstone The misalignment between the part 12 and the core 14 becomes extremely large, and the work load in the finishing process of the grindstone increases.
  • FIG. 3 shows a main part of a process for regenerating the vitrified grindstone 10.
  • the core receiving process 30 has the same configuration as the vitrified grindstone 10, but the outer peripheral grinding surface is worn by being subjected to grinding, and the outer diameter dimension is reduced to, for example, about 700 (mm). Used whetstones (core 14) that have receded to the use limit are accepted.
  • a grindstone portion 12 having a thickness of about 10 (mm) in the radial direction, for example, remains on the outer peripheral surface of the core 14.
  • a grindstone peeling step (remaining portion removing step) 32 the grindstone portion 12 remaining on the outer peripheral surface of the core 14 is peeled off from the core 14 and removed.
  • the vitrified grindstone 10 is heated to the glass transition point of the adhesive layer 22 by a dryer, a high-frequency heating device or another heating device (heating step), and the remaining portion of the grindstone portion 12 is removed.
  • the adhesive layer 22 and the grindstone structure remaining on the outer peripheral surface of the core 14 exposed by being broken down are peeled off with a blade.
  • the resin adhesive which is the main component of the adhesive layer 22, has a property of softening when exposed to a temperature exceeding the glass transition point.
  • the two-component epoxy resin as described above has a glass transition point of about 70 CC), so if the above-mentioned heating temperature is set to about 170 CC), its elastic modulus is remarkably reduced and the fluidity is reduced. Can be enhanced. Therefore, if the used vitrified rubble 10 is heated at the above-described temperature, the remaining grindstone portion 12 having a small thickness is cracked due to a difference in thermal expansion coefficient with the core 14. The adhesive layer 22 comes off due to a decrease in the adhesive strength. '
  • the core 14 from which the grindstone portion 12 has been removed in this way is subjected to a core inspection step 34 where the appearance, dimensions, shape and angle of the taper surface, etc. are inspected.
  • a protective agent or the like is applied and stored indoors until it is used in the bonding step 50 described later. Since the softened adhesive layer 22 can be removed very easily, When the stone is removed in the stone removing step 32, the outer peripheral surface of the core 14 is not easily damaged or changed in size. However, as described above, it is desired that the gap between the outer peripheral surface of the core 14 and the inner peripheral surface of the grindstone portion 12 be within a narrow range of about 0.05 to 0.6 (inversion). It is desired that the core 14 has high dimensional accuracy of the outer diameter and high smoothness of the outer peripheral surface thereof. Therefore, the outer peripheral surface of the core 14 is subjected to finishing with a sandpaper or the like as necessary.
  • the raw material of the outer stone block 12 is mixed with general abrasives such as silicon carbide abrasives (SiC abrasives) and fused alumina abrasives (A abrasives).
  • general abrasives such as silicon carbide abrasives (SiC abrasives) and fused alumina abrasives (A abrasives).
  • An inorganic binder consisting of a mixture of silicalite powder, feldspar powder, clay, glass frit, etc. to form a vitreous material containing silicon dioxide (SiO 2 ) as a main component.
  • a binding agent such as dextrin which generates a certain amount of mutual binding force in order to enhance the shape retention property
  • a pore-forming agent such as an organic substance or an inorganic balloon
  • WA white alundum
  • the mixture is mixed by a well-known mixer.
  • the mixed raw material is filled in a forming die and pressurized at a relatively high pressure by a press machine, thereby forming a circle as shown in the outer grinding wheel portion 12 in FIG.
  • An annular molded body can be integrally obtained, and dimensional finishing is performed using a cutting tool or the like in such an unfired stage.
  • the annular molded body is sintered in a sintering furnace at a sintering temperature corresponding to the melting temperature of the inorganic binder, for example, about 900 CC) or about 1300 CC).
  • the outer peripheral grindstone portion 12 having the vitrified grindstone structure is created.
  • the chemical composition of the inorganic binder for example, SiO 2 is 60 (), ⁇ 1 2 0 3 is 20,), Na 2 0 3 is 5 (3 ⁇ 4), K 2 0 is 5 (%), CaO 300 , gO is 2 (%), B 2 0 3 is a 5 (, as a primary component, silicon dioxide SiO 2.
  • the outer peripheral grindstone portion 12 fired as described above is inspected for its dimensions, shape (deformation), cracks, and the like.
  • the inner peripheral surface 18 of the outer peripheral grindstone portion 12 that passed the inspection is dressed so that the diameter of the tapered inner peripheral surface 18 and the inclination angle 0 are within a preset tolerance.
  • the inner peripheral surface 18 having a tapered surface shape is finished to a predetermined diameter and taper angle by being removed by a predetermined depth using a cutting tool or a cutting tool.
  • the bonding step (grinding part joining step) 50 the outer peripheral whetstone and the part 12 finished in the hole finishing step 48 and the core part 14 stored in the core storing step 36 are horizontal.
  • the bases 56 are bonded to each other via an adhesive layer 22 made of an epoxy resin between the inner peripheral surface 18 and the outer peripheral surface 20.
  • This bonding is performed, for example, by applying an appropriate amount of an adhesive to each of the bonding surfaces of the outer peripheral grindstone portion 12 and the core 14, that is, the inner peripheral surface and the outer peripheral surface thereof, then fitting them in the axial direction, and leaving them for a predetermined time. Or by heating at low temperature in a dryer.
  • the surface of the vitrified whetstone 10 is removed by a depth of about 1 to 2 (thigh) using a dressing tool or a cutting tool.
  • the vitrified grindstone 10 shown in FIG. 1 is obtained by performing a surface finish for adjusting the outer diameter, roundness, thickness, etc. of the vitrified grindstone 10.
  • the final inspection step 54 a final inspection is performed to determine whether or not the vitrified grindstone 10 satisfies the expected standard.
  • the vitrified grindstone 10 is configured by joining the outer peripheral grindstone portion 12 to the metal core 14, and when the use limit is reached, in the grindstone removing step 32. Then, the remaining portion of the grinding wheel portion 12 is removed from the core 14, and then, in a bonding step 50, a new peripheral grinding wheel portion 12, which is separately manufactured, attaches the adhesive layer 22 to the core 14.
  • the vitrified grinding wheel 10 is regenerated by being joined through the intermediary. For this reason, only a small part of the grinding wheel portion 12 that remains on the core 14 (that is, its outer peripheral surface) when the usage limit is reached and is removed therefrom is used. Therefore, abrasive grains and other resources can be used effectively.
  • the vitrified grindstone 10 is heated at a temperature of about 170 (° C.) higher than the glass transition temperature of the adhesive layer 22.
  • the resin adhesive is softened, and the bonding strength between the core 14 and the remaining portion of the outer peripheral grindstone portion 12 is reduced, so that the remaining portion can be easily removed from the surface of the core 14. And be sure. Therefore, the regeneration of the vitrified grindstone 10 is further facilitated, and the remaining portion can be easily removed.Therefore, the surface of the core 14 may be damaged at that time, or the surface may be cut off to change its dimensions. Absent. P was but that connexion, usable count (Views) of the core 1 4 can effectively utilize many more resources Te summer
  • the adhesive for bonding the outer peripheral grindstone portion 12 and the core 14 includes silica powder having an average particle diameter in a range of 4.5 to 7.0 m). Therefore, when regenerating the porous vitrified grindstone 10, in the bonding step 50, the permeation of the adhesive into the outer peripheral grindstone portion 12 is suitably controlled by the silica powder. Therefore, a high bonding strength between the outer peripheral grindstone portion 12 of the regenerated vitrified grindstone 10 and the core 14 can be obtained.
  • the core portion 14 fixed to the inner peripheral side of the annular outer peripheral grindstone portion 12 has a substantially disk shape, but may have a polygonal shape.
  • the vitrified grindstone 10 reproduced in the process of FIG. 3 has a disk shape as shown in FIG. 1 in which an annular outer grindstone portion 12 is adhered to the outer peripheral surface of the core 14.
  • the grinding wheel is such that the inner peripheral grindstone is adhered to the inner peripheral surface of the annular core, or the wedge-shaped grindstone has the grindstone adhered to the end surface of the cylindrical support. If so, it can be played back in the same way.
  • the outer peripheral grindstone portion 12 adhered to the core 14 is an integral member having an annular shape as shown in FIG.
  • the present invention can also be applied to a segment whetstone for bonding individual segments to the core 14.
  • the outer peripheral grinding wheel portion 1 2 is silicon carbide (Si C) quality or melt alumina (A1 2 0 3), but the quality abrasives has been made which has been coupled with an inorganic binder, diamond
  • Si C silicon carbide
  • A1 2 0 3 melt alumina
  • the quality abrasives has been made which has been coupled with an inorganic binder, diamond
  • ⁇ polycrystalline abrasive grains are combined with an inorganic binder
  • resin grindstone in which general abrasive grains ⁇ super-abrasive grains are combined by resin bonding, etc.
  • the present invention can also be applied.
  • the heating temperature in the grinding stone peeling step 32 is appropriately set within a range in which the adhesive layer 22 is sufficiently softened, and the treatment is performed at a temperature higher or lower than 170 C) shown in the embodiment. I can do it. Also, this temperature is determined according to the glass transition point of the adhesive layer 22 and is appropriately changed according to the type.
  • the grinding stone removing step 32 (remaining portion removing step) includes a heating step of heating the grinding stone 10 to soften the adhesive layer 22, but the grinding stone part 12
  • an appropriate method such as a physical method such as shaping and impact force can be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

L"invention concerne un procédé de régénération d"une meule vitrifiée comprenant un noyau métallique et une roue périphérique extérieure connectée à celui-ci et pouvant utiliser de manière efficace des grains abrasifs ainsi que d"autres ressources. Ledit procédé comprend un processus (32) de décapage de la roue permettant d"éliminer la partie résiduelle de la roue du noyau lorsque la roue est utilisée jusqu"à sa limite d"utilisation, et un processus (50) de collage destiné à connecter la nouvelle roue périphérique extérieure fabriquée séparément au noyau par l"intermédiaire d"une couche d"agent adhésif. Ainsi, étant donné que seule la faible partie résiduelle de la roue accumulée sur le noyau (à savoir sur la surface périphérique extérieure de celui-ci) et éliminée du noyau lorsque la roue est utilisée jusqu"à sa limite d"utilisation est mise au rebut, les grains abrasifs et les autres ressources peuvent être utilisées de manière efficace.
PCT/JP2001/009374 2000-10-26 2001-10-25 Procede de regeneration d"une meule WO2002034468A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000-327685 2000-10-26
JP2000327685A JP2002127020A (ja) 2000-10-26 2000-10-26 研削砥石の再生方法

Publications (1)

Publication Number Publication Date
WO2002034468A1 true WO2002034468A1 (fr) 2002-05-02

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WO (1) WO2002034468A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111993300A (zh) * 2020-09-22 2020-11-27 苏州浩耐特磨具有限公司 一种应用于磨料磨具的磨料层分离装置及方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004299019A (ja) * 2003-03-31 2004-10-28 Noritake Co Ltd セグメント型超砥粒砥石
CN108326763A (zh) * 2018-02-02 2018-07-27 福建胜多砂轮有限公司 复合材料砂轮磨具

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0699358A (ja) * 1992-09-21 1994-04-12 Osaka Diamond Ind Co Ltd 超砥粒砥石の再生方法
JPH08112768A (ja) * 1994-10-14 1996-05-07 Honda Motor Co Ltd 砥石の再生方法
JPH08150566A (ja) * 1994-11-28 1996-06-11 Nikon Corp 研削用砥石
US5584755A (en) * 1993-02-15 1996-12-17 August Ruggeberg Abrasive wheel for hand-guided grinding machines, in particular abrasive cutting-off wheel
US5832360A (en) * 1997-08-28 1998-11-03 Norton Company Bond for abrasive tool
JP2000079565A (ja) * 1998-09-02 2000-03-21 Noritake Co Ltd ２重構造ビトリファイド砥石車

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0699358A (ja) * 1992-09-21 1994-04-12 Osaka Diamond Ind Co Ltd 超砥粒砥石の再生方法
US5584755A (en) * 1993-02-15 1996-12-17 August Ruggeberg Abrasive wheel for hand-guided grinding machines, in particular abrasive cutting-off wheel
JPH08112768A (ja) * 1994-10-14 1996-05-07 Honda Motor Co Ltd 砥石の再生方法
JPH08150566A (ja) * 1994-11-28 1996-06-11 Nikon Corp 研削用砥石
US5832360A (en) * 1997-08-28 1998-11-03 Norton Company Bond for abrasive tool
JP2000079565A (ja) * 1998-09-02 2000-03-21 Noritake Co Ltd ２重構造ビトリファイド砥石車

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111993300A (zh) * 2020-09-22 2020-11-27 苏州浩耐特磨具有限公司 一种应用于磨料磨具的磨料层分离装置及方法
CN111993300B (zh) * 2020-09-22 2021-08-10 苏州浩耐特磨具有限公司 一种应用于磨料磨具的磨料层分离装置及方法

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