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. 31, 2012
Filed:
Feb. 07, 2011
Heeman Choe, Seoul, KR;
John H. Stevens, Spring, TX (US);
James C. Westhoff, The Woodlands, TX (US);
Jimmy W. Eason, The Woodlands, TX (US);
James L. Overstreet, Tomball, TX (US);
Heeman Choe, Seoul, KR;
John H. Stevens, Spring, TX (US);
James C. Westhoff, The Woodlands, TX (US);
Jimmy W. Eason, The Woodlands, TX (US);
James L. Overstreet, Tomball, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Methods of manufacturing rotary drill bits for drilling subterranean formations include forming a plurality of boron carbide particles into a body having a shape corresponding to at least a portion of a bit body of a rotary drill bit, infiltrating the plurality of boron carbide particles with a molten aluminum or aluminum-based material, and cooling the molten aluminum or aluminum-based material to form a solid matrix material surrounding the boron carbide particles. In additional methods, a green powder component is provided that includes a plurality of particles each comprising boron carbide and a plurality of particles each comprising aluminum or an aluminum-based alloy material. The green powder component is at least partially sintered to provide a bit body, and a shank is attached to the bit body.