Patent · US Active

Multi-blade solid carbide drill

US9039336B2 · kind B2 · utility

3Cited by

14References

18Claims

0Family size

Assignee

Guehring OHG · DE

Inventors

Ingo Von Puttkamer · Meßstetten, DE
Karl Trauner · Bingen, DE
Armin Helbig · Albstadt, DE

Key dates

Filing date	Nov 15, 2010
Grant date	May 26, 2015
Priority date	—
Expiry date	May 12, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/9097
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a multi-blade solid carbide drill for cutting high-strength sandwich materials. The tool comprises a shaft section and an adjoining cutting part, into which a number of chip flutes that corresponds to the number of main blades is incorporated. In order to reinforce the curvature of the resulting chip, the chip flute of the drill comprises a chip flute rib in the region of the chip formation zone, said rib protruding from the chip flute surface and having a substantially wave-shaped cross-section (28), and said rib dividing the chip flute into two sections, a first chip flute section (30) forming the cutting rake and a second chip flute (32) forming the chip flute runout.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.