Patent · US Active

Multi-blade cutting and drilling finishing tool

US9056360B2 · kind B2 · utility

2Cited by

16References

19Claims

0Family size

Assignee

Guehring OHG · DE

Inventors

Holger Ast · Albstadt, DE
Lutfi Bozkurt · Winterlingen, DE
Peter Sommerfeldt · Hallungen, DE
Jochen Bitzer · Tailfingen, DE

Key dates

Filing date	Nov 12, 2009
Grant date	Jun 16, 2015
Priority date	—
Expiry date	Oct 6, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/906
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Described is a multi-blade cutting and drilling finishing tool for machining deep or stepped bores. The tool comprises at least a first blade set having a nominal diameter and blades distributed essentially uniformly over the circumference. In order to make it easier to guide the tool along the central axis, a guiding strip set in the form of very accurately positioned cutting inserts is located axially behind the first blade set with respect to the axial direction of the tool in which the tool advances forward to machine the deep or stepped bores. Each of the cutting inserts is aligned with one of the blades of the first blade set in a direction parallel to an axis of the tool, and each of the cutting inserts has a nominal diameter which is smaller than the nominal diameter of the first blade set by essentially twice the size of a lubrication gap forming between the guiding strip set and the deep or stepped bores when the tool is used.

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