VERFAHREN ZUM INDUKTIVEN HOCHFREQUENZPRESSSCHWEISSVERBINDEN VON METALLISCHEN BAUELEMENTEN UNTER VERWENDUNG MINDESTENS ZWEIER UNTERSCHIEDLICHEN FREQUENZEN
The method involves connecting corresponding connecting surfaces of metallic parts e.g. disk and ring, of a gas turbine engine, by using inductive high frequency pressure welding, under heating of connecting surfaces. Two different frequencies induced by an inductor are used for heating the connecti...
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| Zusammenfassung: | The method involves connecting corresponding connecting surfaces of metallic parts e.g. disk and ring, of a gas turbine engine, by using inductive high frequency pressure welding, under heating of connecting surfaces. Two different frequencies induced by an inductor are used for heating the connecting surfaces. Edge regions of the connecting surfaces with a higher and inside lying range are heated with a lower frequency, which is in the range of 7 kilohertz to 1 megahertz. The frequencies are selected in dependence on condition and geometry of the connecting surfaces. An independent claim is also included for a construction unit of a gas turbine. |
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