摘要:
A blade (15) for use in an impeller assembly comprising: a top skin element (20); a bottom skin element (22); a first weld joint (24) attaching the top skin element (20) to the bottom skin element (22); and a second weld joint (26) attaching the top skin element (20) to the bottom skin element (22). A method of forming a blade for use in an impeller assembly and an impeller assembly are also claimed.
摘要:
A blade (15 ) for use in an impeller assembly comprising: a top skin element (20); a bottom skin element (22); and a unitary pre-shaped tip element (16) attached to the top and bottom skin elements without an internal framework and disposed at the radial outside end of the blade. A method of manufacturing a blade for an impeller assembly and an impeller assembly are also claimed.