Method for producing rotors with blades
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United States of America Patent
Stats
-
Aug 25, 1998
Grant Date -
N/A
app pub date -
Nov 7, 1996
filing date -
Nov 11, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A blade for a rotor, especially a turborotor, is made of two hollow blade foot sections having matching seam surfaces to form a hollow blade with a thickened foot that is butt-welded with its blade foot sole (7) to an integral welding stub of a rotor hub or disk. The two hollow blade foot sections are soldered to each other along a radially outer seam section (5) between the seam surfaces and welded to each other along a radially inner seam section (6) between the seam surface. The radially inner seam section extends from said blade foot sole. The welded seam normally ends in the thickened blade foot section (6) and is thus shorter than the soldered seam section (5).
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