A manufacturing method of a polishing layer is provided. First, a mold for which the mold cavity has a contour pattern is provided, and the cross section of the contour pattern along a direction includes a plurality of recessions and at least one concavity portion, wherein the at least one concavity portion is disposed on the bottom of at least one of the recessions. A polymer material is disposed in the mold cavity. The polymer material is cured to form a semifinished product, wherein the cross section of the semifinished product along the direction includes a plurality of polishing portions corresponding to the recessions and at least one protruding portion corresponding to the at least one concavity portion. A flattening process is performed on the semifinished product to remove the at least one protruding portion.

An integrated system for automatic forming, picking, and inspection of a grinding wheel mesh piece and a method thereof, including a visual inspection system (1), a conveying system (2), a cutting system (3), and a picking system (4); the conveying system (2) is used to precisely control a conveying action of a cutting section conveying platform (51) and a picking section conveying platform (52), and the visual inspection system (1) is used to acquire an image of a grinding wheel mesh cloth, establish virtual origin coordinates of a cutting layout and center coordinates of the grinding wheel mesh piece after cutting, recognize defects of the grinding wheel mesh cloth, and calibrate qualified center coordinates and unqualified center coordinates; the cutting system (3) is used to cut the grinding wheel mesh cloth moved to the cutting section conveying platform (51) to obtain a circular grinding wheel mesh piece.

A coated abrasive article is presented. The coated abrasive article includes a backing having first and second opposed major surfaces. The coated abrasive article also includes a make layer bonded to the first major surface. The coated abrasive article also includes abrasive particles directly bonded to the make layer. The abrasive particles are at least partially embedded in the make layer. The coated abrasive article also includes a size layer directly bonded to the make layer, and abrasive particles. One of the make layer and size layer comprise a patterned coating.

A porous coated abrasive article comprises a porous backing having opposed first and second major surfaces, and a porous abrasive layer disposed on the first major surface. The porous backing comprises a porous oriented thermoplastic film. The porous backing has a land portion and openings extending between the first and second major surfaces. Each opening has a respective area at the first surface, wherein the openings have a number density of 5 to 4600 openings per square inch, and wherein the total area of the openings is from 1 to 90 area percent, based on the combined total areas of the land portion and the openings. The porous abrasive layer is disposed on the first major surface of the porous backing. The porous abrasive layer comprises abrasive particles retained in a binder and has an abrading surface opposite the porous backing, and the second major surface of the porous backing and the abrading surface are in fluid communication through at least some of the openings. A method of making the porous coated abrasive article using flame perforation is also disclosed.

Provided are a polishing pad including a porous protrusion pattern, a polishing device including the same, and a manufacturing method of a polishing pad. The polishing pad includes a support layer, and a pattern layer disposed directly on the support layer, the pattern layer comprising a protrusion pattern having a plurality of pores. The pores contribute to an increase in perimeter length of the protrusion pattern in plan view, and a perimeter length of a polishing surface formed by the protrusion pattern per unit area is in a range of 1.0 mm/mm.sup.2 to 50.0 mm/mm.sup.2.

Provided are a polishing pad including a porous protrusion pattern, a polishing device including the same, and a manufacturing method of a polishing pad. The polishing pad includes a support layer, and a pattern layer disposed directly on the support layer, the pattern layer comprising a protrusion pattern having a plurality of pores. The pores contribute to an increase in perimeter length of the protrusion pattern in plan view, and a perimeter length of a polishing surface formed by the protrusion pattern per unit area is in a range of 1.0 mm/mm.sup.2 to 50.0 mm/mm.sup.2.

The present disclosure relates to a polishing pad including a polishing layer. The polishing layer defines a plurality of foaming pores, and a diameter of each of the foaming pores is 1 μm to 10 μm. The present disclosure also relates to a method for manufacturing a polishing pad and a polishing apparatus.

The present disclosure relates to a polishing pad including a polishing layer. The polishing layer defines a plurality of foaming pores, and a diameter of each of the foaming pores is 1 μm to 10 μm. The present disclosure also relates to a method for manufacturing a polishing pad and a polishing apparatus.

Methods of making polymer bond abrasive articles and their precursors using powder bed jetting are disclosed. Polymer bond abrasive articles prepared by the method include abrasive articles having arcuate or tortuous cooling channels, unitary structured abrasive discs, abrasive segments, shaped abrasive particles, and abrasive wheels.

According to an embodiment, an electrodeposition whetstone includes a plating layer, first abrasive grains protruding from the plating layer, and second abrasive grains which are arranged between the first abrasive grains. The amount of protrusion of the second abrasive grains from the plating layer is smaller than the amount of protrusion of the first abrasive grains from the plating layer. A grain size of the second abrasive grains is smaller than a grain size of the first abrasive grains.