Twist drill having a sintered cemented carbide body, and like tools, and use thereof

US6655882B2 · kind B2 · utility

Assignee

• KENNAMETAL INC. · US

Inventors

• Hans-Wilm Heinrich · Bayreuth, DE
• Manfred Wolf · Wertheim, DE
• Dieter Schmidt · Bayreuth, DE

Key dates

• Filing date: Aug 22, 2001
• Grant date: Dec 2, 2003
• Expiry date: Dec 14, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12021
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

There is now provided a twist drill having an elongate body at a first end, a shank at a second and opposite end, the elongate body and the shank sharing a common axis, at least one face on the elongate body at an end opposite the shank, wherein the at least one face defines a corresponding flute extending along the elongate body toward the shank, at least one flank on an end of the elongate body at an end opposite the shank, and a cutting edge at a juncture of the at least one face and the at least one flank, and the like tools, having a sintered cemented carbide body, and the use thereof in material removing and dislodging tools.