Patent · US Active

Method for the electrochemical machining of a workpiece

US8956527B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignee

KENNAMETAL EXTRUDE HONE GMBH · DE

Inventors

Patrick Matt · Marktoberdorf, DE
Michael Riester · Seligenstadt, DE
Johannes Schreiner · Memmingen, DE

Key dates

Filing date	Aug 2, 2010
Grant date	Feb 17, 2015
Priority date	—
Expiry date	Aug 9, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25F3/16
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a method for electrochemical processing of at least one workpiece, comprising at least the following steps: a) setting a first flow density during a first phase in an electrolyte, b) retaining the first flow density during a second phase following the first phase, c) increasing the first flow density during a third phase following the second phase to a second flow density at least 30% greater than the first flow density, and d) reducing the second flow density during a fourth phase following the third phase within a maximum of 100 microseconds to a maximum of 1% of the second flow density.

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