A dressing tool, to be used in dressing a plurality of grindstones arrayed in an annular pattern on one surface side of a grinding wheel, includes a dressing section for dressing the plurality of grindstones, a support plate that is located on a side opposite to a front surface side of the dressing section making contact with the plurality of grindstones and that supports a back surface side of the dressing section, and an RFID tag from and in which information concerning the dressing tool is read and written. One of or both the support plate and the dressing section are provided with a recess, and the RFID tag is disposed in the recess and is fixed by a non-conductive material provided in the recess.

Method and systems are disclosed for plunge dressing of a spiral bevel gear-grinding wheel. The method includes providing a dressing roll for plunge dressing of a spiral bevel gear-grinding wheel, the dressing roll including: a body portion having an axis of rotation, a radial extent about said axis, and an axial extent, the body portion integrally comprising: a base portion configured for connection to a drive motor, a first cutting surface, and a second cutting surface, and plunge dressing of the spiral bevel gear-grinding wheel based upon the interference calculation. Some embodiments include determining whether interference will occur between the grinding wheel and the dressing roll before plunge dressing.

Method and systems are disclosed for plunge dressing of a spiral bevel gear-grinding wheel. The method includes providing a dressing roll for plunge dressing of a spiral bevel gear-grinding wheel, the dressing roll including: a body portion having an axis of rotation, a radial extent about said axis, and an axial extent, the body portion integrally comprising: a base portion configured for connection to a drive motor, a first cutting surface, and a second cutting surface, and plunge dressing of the spiral bevel gear-grinding wheel based upon the interference calculation. Some embodiments include determining whether interference will occur between the grinding wheel and the dressing roll before plunge dressing.

A pad conditioner for conditioning a polishing surface of a polishing pad includes a conditioning disk, a disk holder, and a disk arm. The conditioning disk includes a substrate plate and at least two abrasive segments. The conditioning disk includes at least one channel by which debris and spent slurry may be evacuated. The abrasive segments are on a surface of the substrate plate, and form at least one channel segment therebetween. Each channel segment extends from about the center of the surface to substantially the outer rim of the substrate plate. The disk holder to which the conditioning disk is mounted includes a through hole. The disk arm to which the conditioning disk is mounted includes an opening in fluid communication with the at least one channel segment via the through hole for evacuating the debris and spent slurry by a vacuum module.

A pad conditioner for conditioning a polishing surface of a polishing pad includes a conditioning disk, a disk holder, and a disk arm. The conditioning disk includes a substrate plate and at least two abrasive segments. The conditioning disk includes at least one channel by which debris and spent slurry may be evacuated. The abrasive segments are on a surface of the substrate plate, and form at least one channel segment therebetween. Each channel segment extends from about the center of the surface to substantially the outer rim of the substrate plate. The disk holder to which the conditioning disk is mounted includes a through hole. The disk arm to which the conditioning disk is mounted includes an opening in fluid communication with the at least one channel segment via the through hole for evacuating the debris and spent slurry by a vacuum module.

A rotary abrasive machining tool (101) is shown. The tool comprises a hub (103) having plurality of axially-oriented radial slots in the outer circumference thereof, and plurality of abrasive segments each of which is located in a respective slot in the hub and which form an abrading surface (102). The abrasive segments comprise a tab for location in a slot in the hub, and an abrading edge defining a plurality of abrasive elements.

A rotary abrasive machining tool (101) is shown. The tool comprises a hub (103) having plurality of axially-oriented radial slots in the outer circumference thereof, and plurality of abrasive segments each of which is located in a respective slot in the hub and which form an abrading surface (102). The abrasive segments comprise a tab for location in a slot in the hub, and an abrading edge defining a plurality of abrasive elements.

A grinding apparatus according to an embodiment comprises: a table to hold a substrate; a grinding stone driver to be rotatable while holding a grinding stone; and a location adjuster to adjust a relative location between the grinding stone driver and the table. The grinding stone has steps including a first grinding face and a second grinding face, and a first distance between a rotation center of the grinding stone driver and the first grinding face is different from a second distance between the rotation center and the second grinding face. The location adjuster adjusts the relative location from a first state in which the first grinding face is in contact with an end face of the substrate to a second state in which the second grinding face is in contact with the end face.

A dressing board having, on a surface, a two-dimensional code including information relating to properties of the dressing board and a barcode including identification information associated with the information relating to the properties is provided. Furthermore, there is provided a cutting apparatus including a determining part that determines whether or not the properties of the dressing board read out from an information registration part based on the identification information match the kind of dressing board suitable for dressing of a cutting blade.

A dressing board having, on a surface, a two-dimensional code including information relating to properties of the dressing board and a barcode including identification information associated with the information relating to the properties is provided. Furthermore, there is provided a cutting apparatus including a determining part that determines whether or not the properties of the dressing board read out from an information registration part based on the identification information match the kind of dressing board suitable for dressing of a cutting blade.