Patent · US Active

Blank and tool with cooling channels

US8998543B2 · kind B2 · utility

5Cited by

13References

16Claims

0Family size

Assignee

Guehring OHG · DE

Inventors

Manfred Schwenck · Albstadt, DE
Armin Helbig · Albstadt, DE

Key dates

Filing date	Nov 4, 2011
Grant date	Apr 7, 2015
Priority date	—
Expiry date	Dec 6, 2031

Classification

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

Abstract

The application comprises a blank for producing a cutting tool with at least one inner bore for conducting fluids, wherein the blank comprises at least a first and a second portion along, its longitudinal axis, wherein the inner bore in the first portion is formed substantially in a straight line and parallel to the longitudinal axis of the blank, and the inner bore in the second portion has a first twist with a first twist angle greater than zero, wherein the blank can be obtained by a continuous pressing operation, in particular a continuous extruding operation. The application also describes an extrusion device for producing a blank, wherein the extrusion device comprises a control element for controlling the twist angle, in particular the first and/or second twist angle.

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