Siemens Energy, Inc.

Phillip Behling

Ahmed Kamel

Anand A Kulkarni

Allister William James

Christian X Campbell

Daniel M Eshak

Christian Xavier Campbell

A gas turbine engine blade (), including a base portion () having a cast wall, and a tip portion () attached to the base portion and having a wall () formed by an additive manufacturing process. The tip portion wall may be formed to be solid and less than 2 mm in thickness, or it may be corrugated and be greater than 2 mm in thickness. Openings () defining the wall corrugations may be semi-circular, rectangular, trapezoidal, or elliptical in cross-sectional shape. The resulting blade has lower tip mass while retaining adequate mechanical properties. The tip portion may be formed to have a directionally solidified grain structure on a base portion having an equiaxed grain structure.

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Palm Beach Gardens, FL, United States of America

Phillip Behling