B - Operations – Transporting – 24 – B
Patent
B - Operations, Transporting
24
B
B24B 1/00 (2006.01) B24B 19/02 (2006.01) B24D 11/00 (2006.01) B64C 21/10 (2006.01)
Patent
CA 2060583
45716 CAN 5A ABSTRACT OF THE DISCLOSURE This invention relates to a method of providing a predetermined pattern to the surface of a workpiece, and, more particularly, a method for providing such a pattern by means of abrading. Many articles, e.g., boats, airplanes, skis, air foils, mixing blades, have fluids flow over their surface. Such fluids include air, other gases, liquids, and semi-solids. The roughness of the surface of the article is critical, because it directly affects how efficiently the fluid flows over the article. The more efficiently a fluid flows, the less energy is required to transport it. It would be desirable to provide an efficient method for treating the surface of a workpiece such that the surface will be provided with the type of profile that promotes efficient flow of fluids over it. This invention provides a method of treating a workpiece by an abrasive article, the surface of which has a specified pattern. The abrasive article comprises a backing having at least one abrasive composite bonded thereto. The abrasive composite or composites comprise a plurality of abrasive grains dispersed in a binder. The abrasive composite or composites have a predetermined shape and are disposed in a predetermined array, which typically consists of a plurality of peaks and valleys. As a result of the method of this invention, the surface of the workpiece can be provided with a profile that is similar to or substantially identical to the inverse of the pattern of the abrasive article.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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