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:
Jul. 27, 2021
Filed:
Mar. 30, 2017
3m Innovative Properties Company, St. Paul, MN (US);
Carsten Franke, St. Paul, MN (US);
Maiken Givot, St. Paul, MN (US);
Malte Korten, Moorenweis, DE;
Robert L. W. Smithson, Mahtomedi, MN (US);
Brian D. Goers, Minneapolis, MN (US);
Negus B. Adefris, St. Paul, MN (US);
Thomas J. Anderson, Cottage Grove, MN (US);
Brian A. Shukla, Woodbury, MN (US);
Michael C. Harper, Hudson, WI (US);
Elizaveta Y. Plotnikov, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. An abrasive article preform is produced by an additive manufacturing sub-process comprising the deposition of a layer of loose powder particles in a confined region and selective heating via conduction or irradiation to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The abrasive article preform produced by additive manufacturing is subsequently heated to provide the vitreous bond abrasive article comprising the abrasive particles retained in a vitreous bond material, or to provide the metal bond abrasive article. Also, the methods include receiving, by an additive manufacturing device having a processor, a digital object specifying data for an abrasive article, and generating the abrasive article with the manufacturing device.