A sanding device, for, e.g., cosmetic and finishing applications, is provided. The sanding device includes a wire mesh having a plurality of apexes, the apexes having an abrasive affixed thereto. The wire mesh forms a substantially planar surface with a bent perimeter section. The sanding device further includes a rim made from a plastic material, the plastic material capping the bent perimeter section of the wire mesh and further extending from the bent perimeter section. The wire mesh and the rim defining a shallow bowl shape. The sanding devices also includes a carrier shell or grip received and captured with the bowl shape.

A super hard construction comprises a substrate and a super hard material layer formed over the substrate. One of the interface surface of the substrate or the interface surface of the super hard material layer comprises a plurality of spaced-apart projections arranged to project from the interface surface; the projections being arranged in a substantially annular discontinuous first array around the central longitudinal axis and spaced from the peripheral surface of the substrate by a distance of between around 1 mm to around 1.5 mm. A second substantially annular discontinuous array of projections is positioned radially within the first array. The projections in the second array are positioned to radially align with spaces between the projections in the first array, the interface surface between the projections being substantially planar; and the projections in the first array are of a greater height than the projections in the second array.

A polishing pad or polishing tape with abrasive particles (e.g., diamond, aluminum-oxide, silicon-carbide, etc.) having an average particle size of between approximately 0.5 micrometers (m) and 5.0 m, which are strongly adhered with water-insoluble binders to a flexible and lens-conformable substrate having a cushion so that there is little-to-no shedding or release of the particles from the substrate.

PDCs, methods of fabricating the PDCs, and methods of using the PDCs are disclosed herein. The PDCs include a PCD table bonded to a substrate. The PCD table includes an upper surface having a plurality of recessed features formed therein. The plurality of recessed features are configured to attract at least some cracks that form in the PCD table. As such, the plurality of recessed features limit or prevent crack propagation into other portions of the PCD table and limit a volume of the PCD table that spalls. Methods of fabricating the PDCs include partially leaching the PCD table and, after leaching the PCD table, forming the plurality of recessed features in the upper surface thereof. Method of using the PDCs include rotating a PDC that has spalled relative to a rotary drill bit such that a portion of the upper surface of the PDC that has not spalled forms a cutting surface thereof.

A dresser includes: a mount component; and a cutting edge component inserted in the mount component at a base end portion side, wherein the portion of the cutting edge component inserted in the mount component has one or more portions in each of which an area of a cross section is increased from the front end portion side toward the base end portion side in the insertion direction, and a ratio L1/M1 of a length L1 and a maximum value M1 is more than or equal to 2.1, where L1 represents a length of the portion of the cutting edge component inserted in the mount component and M1 represents a maximum value of a diameter of a circle having an area equal to the area of the cross section of the portion of the cutting edge component inserted in the mount component.

An abrasive article including a substrate having an elongated body, a tacking layer overlying the substrate, and a first type of abrasive particle overlying the tacking layer and defining a first abrasive particle concentration at least about 10 particles per mm of substrate.

A coated abrasive article (10) having a flexible backing (12) and an abrasive coat (20) attached to the backing (12) by a tie coat (18), wherein the tie coat (18) is liquid-softenable such that the tie coat (18) maintains the flexible backing (12) in a substantially rigid state when the tie coat (18) is dry and allows the backing (12) to flex when the tie coat (18) is in its softened state.

An article (100) has a polyester film backing (110) and a primer layer (120) including a carboxylated styrene butadiene copolymer crosslinked with a polyfunctional aziridine disposed on a major surface of the polyester film backing (110). Another article includes a polyester backing (110), a primer layer (120) including a carboxylated styrene butadiene copolymer crosslinked with a polyfunctional aziridine disposed on a major surface of the polyester backing (110), and a phenolic layer (140) disposed on the primer layer (120) on a surface opposite the polyester backing (110). The phenolic layer (120) can include abrasive particles (160). Processes for making the articles are also described, as well as methods for abrading a workpiece and improving adhesion between a polyester film backing (110) and a phenolic layer (120) on the polyester backing (110).

A polishing pad or polishing tape with abrasive particles (e.g., diamond, aluminum-oxide, silicon-carbide, etc.) having an average particle size of between approximately 0.5 micrometers (m) and 5.0 m, which are strongly adhered with water-insoluble binders to a flexible and lens-conformable substrate having a cushion so that there is little-to-no shedding or release of the particles from the substrate.

A coated abrasive article (10) having a backing (12) and an abrasive coat (20) attached to the backing (12), the abrasive coat (20) comprising a cured abrasive slurry containing a plurality of abrasives particles, wherein the abrasive slurry is soluble such that it retains the abrasive particles on the backing (12) when in its solid state, and releases the abrasive particles from the backing (12) during the process of dissolution to a dissolved state.