Patent · US Active

Method for the production of drill holes in difficult to machine materials

US11471964B2 · kind B2 · utility

0Cited by

5References

10Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Albin Platz · Mering, DE
Nicole Feiling · Munich, DE
Anna Carina Kuepper · Munich, DE
Norbert Huber · Erlangen, DE

Key dates

Filing date	Aug 7, 2019
Grant date	Oct 18, 2022
Priority date	—
Expiry date	Oct 4, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23H2600/10
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The present invention relates to a method for the production of drill holes in difficult to machine materials, in which a removal of material takes place in order to produce a drill hole by electrochemical erosion of material by an electrode that is moved in the longitudinal direction of the drill hole being produced in the direction onto the material to be processed at a feed rate, wherein the drilling has at least two steps, wherein, in the first step, the electrochemical processing takes place, and wherein, in a second step, the further processing of the drill hole to the final diameter takes place by machining processing or by erosion or by an electrochemical processing.

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