ABRASIVE CUT-OFF WHEELS AND METHODS OF MAKING THE SAME

Methods of making thin abrasive cut-off wheels with low pinhole occurrence are disclosed. An abrasive cut-off wheel has a thickness of less than or equal to 1.6 millimeters. It comprises at least one reinforcing scrim and abrasive particles retained in a phenolic binder. The abrasive particles compr...

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Bibliographische Detailangaben
Hauptverfasser:	Beiermann, Brett A, Schillo-Armstrong, Melissa C
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES GRINDING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES POLISHING THEIR PREPARATION OR CHEMICAL WORKING-UP TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	Methods of making thin abrasive cut-off wheels with low pinhole occurrence are disclosed. An abrasive cut-off wheel has a thickness of less than or equal to 1.6 millimeters. It comprises at least one reinforcing scrim and abrasive particles retained in a phenolic binder. The abrasive particles comprise first and second triangular abrasive platelets. The first triangular platelets have a first average maximum side length and a first total weight. The second triangular platelets have a second average maximum side length and a second total weight. The first and second total weights combined comprise at least 30 weight percent of the abrasive cut-off wheel. The ratio of the first average maximum side length to the second average maximum side length is 1.25:1 to 5:1, and the ratio of first total weight to the second total weight is 1:2 to 5:1.