Blade outer air seal cores and manufacture methods

摘要

A blade outer air seal (BOAS) casting core (200) has first and second end portions (202,204) and a plurality of legs (210...220). Of these legs, first legs (210,214,218) each have: a proximal end (242,246,250) joining the first end portion (202); a main body portion; and a free distal portion (230,234,238). Second legs (212,216,220) each have: a proximal end (244,248,252) joining the second end portion (204); a main body portion; and a free distal portion (232,236,240).