B - Operations – Transporting – 24 – D
Patent
B - Operations, Transporting
24
D
B24D 3/28 (2006.01) B24D 11/00 (2006.01)
Patent
CA 2086360
46913CAN6A ABSTRACT OF THE DISCLOSURE This invention relates to abrasive articles, and more particularly, to an abrasive article having a backing that carries abrasive composite members that have a precise lateral spacing and orientation. It has long been recognized that the abrading surface of an abrasive article can be clogged or gummed by material worn from the workpiece. One way this problem has been addressed is by applying the abrasive grains on a backing in a dot pattern or matrix pattern. When abrasive grains are disposed in a pattern, pathways exist for abraded material to be removed. There is a need for an abrasive article that has abrasive members having a precise, lateral spacing and a consistent and desired orientation relative to the backing. The present invention provides a method of forming an abrasive article comprising the steps of providing an embossed carrier web having a plurality of recesses formed in the front surface thereof; filling the recesses with an abrasive composite slurry that includes a plurality of abrasive grains dispersed in a hardenable binder precursor, hardening the binder precursor to form individual abrasive composite members, laminating a backing sheet to the front surface of the embossed carrier web. The resulting article includes a plurality of precisely spaced abrasive composite members, positioned in a predetermined pattern and orientation on a backing sheet.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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