A fixed abrasive article having a body including abrasive particles contained within a bond material, the abrasive particles including shaped abrasive particles or elongated abrasive particles having an aspect ratio of length:width of at least 1.1:1, each of the shaped abrasive particles or elongated abrasive particles having a predetermined position or a predetermined three-axis orientation, including a placement angle ranging from +90 degrees to −90 degrees and a rake angle ranging from +90 degrees to −90 degrees.

Abrasive articles are disclosed comprising at least one primary elongate abrasive element extending along an element axis. The primary elongate abrasive element comprises a plurality of formed abrasive particles, wherein at least 50% of the formed abrasive particles are orientationally aligned along the element axis.

A method and systems for controlling optical transmissivity of a polish pad material are provided. The method and systems may include adjusting control parameters to determine the optical transmissivity of a polish pad material. The control parameters may also include pre-processing controls, casting controls, and/or curing controls. Methods and systems also provided for assembling a polish pad that controls the optical transmissivity of the polish pad. Additionally, a polish pad with a controlled optical transmissivity is provided.

An abrasive article comprising a first group including a plurality of shaped abrasive particles overlying a backing, wherein the plurality of shaped abrasive particles of the first group defines a first non-shadowing distribution relative to each other.

A coated abrasive belt (100) includes a belt backing (110) and an abrasive layer disposed thereon. The abrasive layer comprises abrasive elements (160) secured to at least a portion of a major surface of the belt backing (110) by at least one binder material. The abrasive elements are disposed at contiguous intersections of horizontal (192) and vertical lines (194) of a rectangular grid pattern. Each abrasive element has at least two triangular abrasive platelets (130), each having respective top and bottom surfaces connected to each other, and separated by, three sidewalls. On a respective basis, one sidewall of the triangular abrasive platelets is disposed facing and proximate to the belt backing A first portion of the abrasive elements is arranged in alternating first rows (16) wherein the triangular abrasive platelets are disposed lengthwise aligned with the vertical lines (194). A second portion of the abrasive elements is arranged in alternating second rows (168) wherein the triangular abrasive platelets (130) are disposed lengthwise aligned with the horizontal lines (194). The first and second rows repeatedly alternate along the vertical lines. Methods of making and using the coated abrasive belt are also disclosed.

An abrasive wheel maker apparatus comprising: a wheel substrate (710) having a dispensing surface; an abrasive material dispenser (720) to dispose a binder precursor onto a circular section of the dispensing surface and to dispose a plurality of abrasive particles at least partially within the binder precursor; and a rotation device (700) to rotate the dispensing surface relative to the abrasive material dispenser (720) to form a continuous single layer bonded abrasive wheel.

An abrasive article comprises: a substrate comprising strands forming first void spaces between strands; a laminate joined to the substrate, wherein the laminate comprises a surface opposite to the substrate; a resin composition joined to the surface of the laminate. First and second portions of the surface of the laminate have respective first and second surface free energies that are different. Another abrasive article comprises: a substrate comprising strands forming first void spaces between strands; a laminate joined to the substrate, wherein the laminate comprises a first polymer and a second polymer; a resin composition joined to the laminate; In both embodiments, abrasive particles are joined to the resin composition, and a plurality of second void spaces extends through the laminate coinciding with first void spaces in the porous substrate. A method of making abrasive articles is also disclosed.

An abrasive disc sheet article having patterns of vitrified abrasive particle agglomerate molded islands attached in annular bands on a flexible disc backing is used for high-speed water-spray cooled abrading and polishing without hydroplaning of workpieces. Hydroplaning is prevented as excess coolant water flows around the islands instead of forming a thick water film that separates the island abrasive and the workpiece. Vitrification encapsulates individual abrasive particles in glass to strongly support them to resist abrading forces and to allow them to be progressively worn down for full utilization of expensive diamond particles. Slow eroding of the agglomerates also results in very long abrade life of the abrasive discs. A porous filler material attached to the disc backing between the island structures carries water to contact the wafer surface and cool it during abrading. Interchangeable discs having different abrasive particle sizes are quickly attached with vacuum to flat rotatable platens.

A multiphase abrasive particle precursor is disclosed. The precursor includes a first phase of a first material with a substantially constant first composition throughout the first phase. The precursor also includes a second phase, of a second material, with a substantially constant composition throughout the second phase. The precursor includes an interface between the first and second phases. The multiphase abrasive particle precursor is a shaped abrasive particle precursor.

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.