B24D3/34

Gimbal for CMP tool conditioning disk having flexible metal diaphragm

A gimbal for a conditioning system for a CMP tool is configured to maintain a conditioning disk in contact with a polishing pad of the CMP tool. The gimbal includes an arm coupling for coupling to a conditioning swing arm of the CMP tool; and a disk holder for holding the conditioning disk. A flexible diaphragm extends between the arm coupling and the disk holder. The flexible diaphragm allows the disk holder to flex relative to the arm coupling. The flexible diaphragm is made of a metal or metal alloy.

SUPERSIZE COMPOSITION, ABRASIVE ARTICLE AND METHOD OF MAKING AN ABRASIVE ARTICLE

Abrasive articles, along with related compositions and methods, are provided. The abrasive articles include a backing, abrasive layer, and supersize coat that includes calcium stearate and an ammonium salt of a modified styrene acrylic polymer. The supersize coat can be dried to a translucent film at temperatures well below the melting temperature of the binder without need for a surfactant. Advantageously, these abrasive articles can reduce swarf accumulation during an abrading operation and enhance cut performance while achieving a high degree of optical clarity.

ABRASIVE ARTICLE, ABRASIVE SYSTEM AND METHOD FOR USING AND FORMING SAME
20200316754 · 2020-10-08 ·

An abrasive article includes a body and an electronic assembly coupled to the body, the electronic assembly including an electronic device, and a first portion between the body and the communication device, the first portion having a material of an average relative magnetic permeability of not greater than 15.

Systems and methods for making abrasive articles

Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of walls defining a plurality of slots. Each slot is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the slots. The particle then passes partially through the slot such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the slot. The sequence then includes the particle remaining in simultaneous contact with one of the walls and the major face for a dwell period while the web moves relative to the tool.

Abrasive articles and related methods

Provided are abrasive articles that include a plurality of layers, in the following order: a backing; an abrasive layer; and a supersize coat. The supersize coat contains a metal salt of a long-chain fatty acid and clay particles dispersed therein. Advantageously, the clay particles enhance the optical clarity of the supersize coat, allowing printed abrasive articles to be made with thicker supersize coatings. The addition of clay was also found to improve cut performance of the abrasive article relative to articles in which the clay particles are absent.

ABRASIVE TOOL AND USE OF SUCH AN ABRASIVE TOOL

An abrasive tool, including an abrasive carrier (1) having a shaft (2) for connecting the abrasive carrier (1) to a driving device for rotatably driving the abrasive carrier (1) about a longitudinal axis (X) and having a core (3) connected to an axial end (4) of the shaft (2), and an abrasive article (15) having a surface (16) being circumferentially closed about the longitudinal axis (X) and enclosing a cavity (17) extending along the longitudinal axis (X), wherein the core (3) is accommodated at least partially in the cavity (17), and wherein the core (3) includes a material mixture which includes a plastic with a heat-conductive filler, wherein the plastic is foamed, and wherein the filler has a thermal conductivity greater than 35 watts per meter and per Kelvin.

FUSED ALUMINA GRAINS, METHOD FOR PRODUCING FUSED ALUMINA GRAINS, GRINDSTONE, AND COATED ABRASIVE
20200239369 · 2020-07-30 · ·

Provided are electrofused alumina grains capable of preventing grain binding on production and of achieving high grinding performance. The electrofused alumina grains of the present invention contain at least either one of tungsten or molybdenum.

Mirror finishing method and production method of mirror finishing tool
10717170 · 2020-07-21 · ·

A mirror finishing method for forming a mirror surface on a workpiece with a mirror finishing tool including a conically shaped cutting tool made of polycrystalline diamond or cubic boron nitride that is attached to a distal end of a shank, performs mirror polishing by abutting a conical surface of the cutting tool against a machined surface of the workpiece with the shank tilted with respect to the machined surface of the workpiece.

Curable composition, abrasive article, and method of making the same

A curable composition comprises a phenolic resin and isocyanate-functionalized abrasive particles. The isocyanate-functionalized abrasive particles consist of the reaction product of at least one isocyanate-functional organosilane and abrasive particles. Abrasive articles and methods of making them using the isocyanate-functionalized abrasive particles are also disclosed.

Curable composition, abrasive article, and method of making the same

A curable composition comprises a phenolic resin and isocyanate-functionalized abrasive particles. The isocyanate-functionalized abrasive particles consist of the reaction product of at least one isocyanate-functional organosilane and abrasive particles. Abrasive articles and methods of making them using the isocyanate-functionalized abrasive particles are also disclosed.