General Electric Company

Lara Liou

Joshua L Miller

Gregory Carl Gemeinhardt

Michael John Franks

Manuel Acosta

James Andrew Hahn

Trevor Howard Wood

Wendy Wenling Lin

Casey Lauren Berschback

A bonded part includes: a substrate including a polymer matrix material; a metal layer; a layer of adhesive between the substrate and the metal layer; and a layer of smut between the layer of adhesive and the metal layer.

Metal surface preparation

A part that includes a metal layer positioned on it. The part includes a composite core. A metal layer is positioned on the composite core such that the layer of adhesive is sandwiched between the composite core and the metal layer. A layer of smut that is positioned between the layer of adhesive and the metal layer.

An airfoil of a propulsion device having a first riblet laminate with a first adhesive layer on at least a first portion of the airfoil surface and a first riblet array sheet disposed on at least a portion of the first adhesive layer. The first riblet array sheet defines a first plurality of contiguous geometric features having rigid peaks and valleys extending in a first rib direction. The first plurality of contiguous geometric features define a total width to total height ratio W:H of about 1:1 to about 2.5:1 with a maximum total height of about 0.65 mm or less. A second riblet array laminate is also disclosed in an embodiment.

Durable riblets for engine environment

Growing community of inventors

Cincinnati, OH, United States of America

Lara Liou