B24D3/344

FIXED ABRASIVE THREE-DIMENSIONAL LAPPING AND POLISHING PLATE AND METHODS OF MAKING AND USING THE SAME
20190255676 · 2019-08-22 ·

A fixed abrasive three-dimensional plate includes micron size diamond beads or a mixture of abrasive particles and metal oxide beads, ranging in size from a few microns to a few tens of microns, incorporated into a matrix of one or more inorganic binders and fillers. The composition is formed into a rigid plate blank, and the abrasive plate is mounted on a substrate forming a lapping/polishing plate. The abrasive plate is capable of delivering high material removal rates coupled with reduced surface roughness when lapping/polishing advanced materials, including sapphire, titanium carbide reinforced alumina, silicon carbide, gallium nitride, aluminum nitride, zinc selenide, and other compound semiconductor materials, as well as, glass, ceramic, metallic, and composite workpieces. The diamond beads incorporated in the fixed abrasive three-dimensional plate include diamond particles ranging in size from a few nanometers to a few tens of microns, bonded with one or more inorganic binders and additives.

ABRASIVE ARTICLES AND METHODS OF FORMING THE SAME

An abrasive article may include an organic bond material, abrasive particles contained within the organic bond material and a plasticizer contained within the organic bond material. The plasticizer may include at least one of an aromatic phenyl group, a heteroaromatic furyl group, or a saturated aliphatic hydrocarbon. The plasticizer may further include a polar group.

Abrasive articles including a blend of abrasive particles and method of forming and using the same

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, ?F=|F.sub.1?F.sub.2|, within a range of at least 0.5% to not greater than 80%.

ABRASIVE ARTICLES INCLUDING A BLEND OF ABRASIVE PARTICLES AND METHOD OF FORMING AND USING THE SAME
20190061107 · 2019-02-28 ·

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, ?F=|F.sub.1?F.sub.2|, within a range of at least 0.5% to not greater than 80%.

Rigid backsize to prevent fiber disc curling

Systems and methods include providing a coated abrasive article with a substrate formed from a plurality of hygroscopic fibers, an abrasive layer comprising a make coat, a size coat, a supersize coat, or combinations thereof disposed on a first side of substrate, and an anti-curl layer disposed on a second side of the substrate. The polymer-based anti-curl layer allows the coated abrasive article to achieve a change in curl between ?5 millimeters and 25 millimeters, the change in curl being expressed as the curl of the coated abrasive article in millimeters at 90% relative humidity minus the curl of the coated abrasive article in millimeters at 20% relative humidity. The coated abrasive article exhibits substantially no loss of grinding performance, burst speed, or a combination thereof as compared to coated abrasive articles free of the anti-curl layer.

COATED ABRASIVE ARTICLE

An abrasive article (100) comprising a backing (102); a make resin (112) contacting the backing (102); abrasive particles (114) contacting the make resin (112); and a size resin (116) contacting both the abrasive particles (114) and the make resin (112), wherein the make resin (112) includes an alkyl quaternary ammonium clay, which can take the form of Garamite.

GRINDING MEANS AND METHOD FOR PRODUCING THE GRINDING MEANS
20240293914 · 2024-09-05 ·

The invention relates to a grinding means (1) for grinding workpieces, comprising: a carrier (2), e.g., a carrier disk or a carrier strip, abrasive grains (4) applied to the carrier (2), and a binder (6) applied to the carrier (2).

To enable material saving and energy efficient production nanoparticles (8) are held in the binder (6) which comprise a superparamagnetic, ferrimagnetic and/or ferromagnetic material which can be excited by means of one or more of the following measures: an alternating electric induction field, an alternating magnetic field microwave radiation, where the nanoparticles (8) can be heated by means of the excitation, and where the binder (6) thermally cures.

Furthermore, a method for producing is provided.

METHOD FOR MANUFACTURING CUTTING BLADE, AND CUTTING BLADE
20180264627 · 2018-09-20 · ·

This method for manufacturing a cutting blade includes: a mixing step of adding a liquid dispersion medium to a mixed powder containing a resin powder of a thermocompression-bondable resin, abrasive grains and fibrous fillers; a compression step of cold pressing, in a forming die, the mixed powder to which the dispersion medium has been added to form an original plate of a blade main body; and a sintering step of hot pressing and sintering the original plate.

ABRASIVE TOOLS AND METHODS FOR FORMING SAME

An abrasive tool including a bonded abrasive including a body comprising abrasive particles contained within a three-dimensional matrix of bond material, the bond material including an organic material, the abrasive tool further including a first filler contained within the three-dimensional matrix of bond material including a silicate in a first content and a second filler contained within the three-dimensional matrix of bond material including a sulfate in a second content, and the first content is greater than the second content.

POLISHING PAD, POLISHING APPARATUS AND METHOD FOR MANUFACTURING POLISHING PAD

The present invention relates to a polishing pad with improved slurry retention capacity, which includes a polishing layer. The polishing layer includes an elastomer main body and a plurality of titanium dioxide nanowires. Each of the titanium dioxide nanowires is independent and is distributed evenly and randomly in the elastomer main body. The present invention further provides a polishing apparatus and a method for manufacturing the polishing pad.