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. 04, 2010
Filed:
May. 23, 2006
Krishnamoorthy Subramanian, Lexington, MA (US);
John A. Webster, Storrs, CT (US);
Peter Caputa, Iv, Marlborough, MA (US);
Krishnamoorthy Subramanian, Lexington, MA (US);
John A. Webster, Storrs, CT (US);
Peter Caputa, IV, Marlborough, MA (US);
Saint-Gobain Abrasives, Inc., Worcester, MA (US);
Saint-Gobain Abrasifs, Conflans-Sainte-Honorine, FR;
Abstract
A method of producing a complex shape in a workpiece includes the steps of: i) grinding a workpiece at a maximum specific cutting energy of about 10 Hp/in·min with at least one bonded abrasive tool, thereby forming a slot in the workpiece; and ii) grinding the slot with at least one mounted point tool, thereby producing the complex shape in the slot. The bonded abrasive tool includes at least about 3 volume % of a filamentary sol-gel alpha-alumina abrasive grain having an average length-to-cross-sectional-width ratio of greater than about 4:1 or an agglomerate thereof. A method of producing a slot in a metallic workpiece having a maximum hardness value of equal to, or less than, about 65 Rc includes the step of grinding the workpiece with a bonded abrasive tool at a material removal rate in a range of between about 0.25 in/min·in and about 60 in/min·in and at a maximum specific cutting energy of about 10 Hp/in·min.