| 摘要 |
A blade outer air seal (BOAS) casting core (200) has first and second end portions (202, 204) and a plurality of legs. Of these legs, first legs (210, 214, 218) each have: a first end (230, 240, 250) joining the first end portion (202); a main body portion; and a second end (230, 242, 252). Second legs (212, 216, 220) each have: a second end (239, 256, 254) joining the second end portion (204); a main body portio; and a first end (236, 246, 248). At least one of the second legs (212, 216, 220) may have its first end (236, 246, 248) joining the core first end portion (202) and a plurality of apertures (272) in the main body portion. Alternatively, at least one of the first legs (210, 214, 218) may have its second end (230, 242, 252) joining the core second end portion (204) and a plurality of apertures (272) in its main body portion. |
