A coated cutting tool having a substrate and a surface coating, wherein the coating includes a Ti(C,N) layer of at least one columnar fine-grained MTCVD Ti(C,N) layer with an average grain width of 0.05-0.2 μm and an atomic ratio of carbon to the sum of carbon and nitrogen (C/(C+N)) contained in the MTCVD Ti(C,N) layer is in average 0.50-0.65.

A bonded abrasive wheel comprises magnetizable abrasive particles retained in an organic binder. The bonded abrasive wheel has a central portion adjacent to a central hub, an outer circumference and a rotational axis extending through the central hub. The magnetizable abrasive particles adjacent to the central hub are aligned at an average angle of less than 35 degrees with respect to the rotational axis, and the magnetizable abrasive particles adjacent to the outer circumference of the bonded abrasive wheel are aligned at an average angle that is from 35 and 90 degrees, inclusive, with respect to the rotational axis. Methods of making a bonded abrasive wheel are also disclosed.

An abrasive agglomerate particle includes fused aluminum oxide mineral bonded in a vitreous matrix. The fused aluminum oxide mineral is present in a range from 70 percent by weight to 95 percent by weight and the vitreous matrix is present at least at five percent by weight, based on the weight of the abrasive agglomerate particle. The fused aluminum oxide mineral has an average particle size of up to 300 micrometers, and the abrasive agglomerate particle has a frusto-pyramidal shape with side walls having a taper angle in a range from 2 to 15 degrees and a dimension of at least 400 micrometers. The abrasive agglomerate particles are useful in abrasive articles. The method includes contacting the workpiece with an abrasive article and moving the workpiece and the abrasive article relative to each other to abrade the workpiece.

A shaped abrasive agglomerate particle includes a shaped abrasive particle bonded in a vitreous matrix. The shaped abrasive particles have a longest particle lineal dimension on a surface and a shortest particle dimension perpendicular to the longest particle lineal dimension, and the longest particle lineal dimension is at least twice the shortest particle dimension. The shaped abrasive agglomerate particle has a longest agglomerate lineal dimension on a surface and a shortest agglomerate dimension perpendicular to the longest agglomerate lineal dimension, and the longest agglomerate lineal dimension is at least twice the shortest agglomerate dimension. The abrasive agglomerate particles are useful in abrasive articles. Methods of making the shaped abrasive agglomerate particle and abrading a workpiece are also described.

Systems and methods include providing a coated abrasive article with an enhanced anti-loading composition in a supersize coat. The anti-loading composition includes a mixture of a metal stearate, at least one performance component, and a polymeric binder composition.

A polishing tool with a carrier comprising a polishing surface on which a polishing paste is applied at least in some areas, wherein the polishing surface consists of a nonwoven fabric, the polishing paste is in a solid state at room temperature and is applied on the polishing surface to be covered in an amount of 0.08 g/cm.sup.2 to 0.30 g/cm.sup.2.

Method for reinforcing a grinding wheel, preferably for grinding gears. By means of at least one plastic that is poured in, both a ring lining a bore of the grinding wheel and a reinforcing layer are formed in the grinding wheel pores. The plastic that is poured in preferably consists of a potting compound, used in the raw state, made of a 2-component polyurethane system. In order to produce the reinforcement, the grinding wheel is set rotating, i.e., rotated, and, at the same time, a specific quantity of potting compound is poured into the bore. An increase in the explosion speed during operation of the grinding wheel is thereby made possible.

Methods for manufacturing bonded abrasive articles, for example vitrified bonded grinding wheels. A bondable abrasive composition is prepared including abrasive particles, a binder medium and a gamma-pyrone pore inducing material, such as ethyl maltol. A precursor abrasive structure is formed from the composition. The gamma-pyrone pore inducing material is removed from the precursor abrasive structure to provide a porous precursor abrasive structure that is further processed to provide a bonded abrasive article. In some embodiments, the binder medium includes a vitreous bonding material, and the bonded abrasive article is a porous vitrified bonded grinding wheel.

An abrasive article including a substrate; and an abrasive layer overlying the substrate, where the abrasive layer includes a blend of abrasive particles including a first type of abrasive particle comprising a polycrystalline material and having a first average friability F.sub.1, and a second type of abrasive particle comprising a polycrystalline material and having a second average friability, F.sub.2, where the blend comprises an average friability difference, ΔF=|F.sub.1−F.sub.2|, within a range of at least 0.5% to not greater than 80%.

The present disclosure relates to a chemical mechanical planarization pad and a method of making and using a chemical mechanical planarization pad. The chemical mechanical planarization pad may include a first component including a water soluble composition and water insoluble composition exhibiting a solubility in water of less than that of the water soluble composition, wherein at least one of the water soluble and water insoluble compositions of the first component is formed of fibers. The chemical mechanical planarization pad may also include a second component, wherein the first component is present as a discrete phase in a continuous of the second component.