Patent · US Expired

Apparatus and method for healing a workpiece of metal

US6689995B2 · kind B2 · utility

4Cited by

5References

2Claims

0Family size

Assignee

ALD VACUUM TECHNOLOGIES GMBH · DE

Inventors

Helmut Eberhardt · Gelnhausen, DE
Karl-Heinz Grosse · Grundau, DE
Karl Herchenrother · Birstein, DE
Jurgen Lemke · Weinheim, DE

Key dates

Filing date	Mar 25, 2003
Grant date	Feb 10, 2004
Priority date	—
Expiry date	Mar 25, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/60
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to an apparatus and a method for heating a workpiece of an inductively heatable material, for example a turbine blade. Such a turbine blade consists of a massive blade base and a low-mass blade leaf. To enable the blade base and blade leaf to be heated in a manner appropriate to each an induction coil is provided, which surrounds the blade base and the blade leaf. By suitable choice of the alternating currents which flow through the induction coil and/or through the interposition of a susceptor between turbine blade and induction coil, the blade base and blade leaf can be heated in an appropriate manner.

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