The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 2017
Filed:
Aug. 28, 2012
Applicants:
Mark G. Schwabel, Lake Elmo, MN (US);
Josef Kofler, Treffnerstrasse, AT;
Inventors:
Mark G. Schwabel, Lake Elmo, MN (US);
Josef Kofler, Treffnerstrasse, AT;
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D 5/12 (2006.01); B24D 18/00 (2006.01); B24B 27/06 (2006.01); B24D 3/20 (2006.01); B24D 3/34 (2006.01);
U.S. Cl.
CPC ...
B24D 5/12 (2013.01); B24B 27/0675 (2013.01); B24D 3/20 (2013.01); B24D 3/344 (2013.01);
Abstract
A method of abrading a workpiece includes: contacting a metallic workpiece, having a bulk temperature of less than 500 degrees Celsius, with a stationary rotating bonded abrasive wheel having a diameter of at least 150 millimeters, wherein the bonded abrasive wheel comprises ceramic shaped abrasive particles retained in a binder, and wherein metallic swarf is formed, and at least 20 percent by weight of the metallic swarf is filamentary metallic swarf having a length of at least 3 mm.