Patent · US Expired

Method for removing coating from power unit components and device for carrying out the method

US7452476B2 · kind B2 · utility

15Cited by

15References

11Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Erwin Bayer · Dachau, DE
Karsten Gold · Stade, DE
Albin Platz · Mering, DE
Matthias Schmidt · Munich, DE

Key dates

Filing date	Mar 10, 2003
Grant date	Nov 18, 2008
Priority date	—
Expiry date	Mar 17, 2024

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K2103/52
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for the selective removal of one or more layers from a power unit component, e.g., a turbine blade of a heavy-duty turbine, using high-energy radiation of such a wavelength that the supplied energy is so strongly absorbed by the layer to be removed in each case that the removal threshold of the specific material of the layer to be removed is exceeded, while this removal threshold is not reached in the subsurface to be preserved, a spectrometer connected to a control unit via a light-conducting fiber cable such that the method-specific characteristic values are determinable by spectroscopic methods during the removal of the respective layer and are used for the self-regulating process limitation.

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