摘要:
A method of manufacturing a core for casting a component (20) can include manufacturing a core for at least partially forming an internal passage architecture of a component with a material including radiopaque particles. A method can include removing a material including radio opaque particles from an internal passage architecture of a component; and inspecting the component via radiographic imaging at gamma/X-ray wavelengths to detect residual material. A core for use in casting an internal passage architecture of a component can include a material with radiopaque particles dispersed therein.
摘要:
A core assembly (200) for casting an internal cooling circuit within a gas turbine engine component including a core portion (400) having a recess and a cooling hole solid (404) that is at least partially received into the recess.
摘要:
A core (400) for an investment casting process in which a component to be cast has an internal passageway, the internal passageway being provided by the core (400), the core (400) comprising: a first core passage (401) having a first point (405) and a second point (406) therein and including no straight path between the first point (405) and the second point (406); and a first core bridge (421a) which extends away from the first core passage (401) between the first and second points (405, 406), wherein the first core bridge (421a) comprises a first pillar (422) and a second pillar (412a) which connect to the first and second points (405, 406) respectively, and a bridge portion (423a) which extends between the first and second pillars (422, 412a); wherein the first pillar (422) comprises a core inlet portion (408) having a thickness at the first point (405) and the second pillar (412a) has a thickness at the second point (406), the thickness of the core inlet portion (408) at the first point (405) being less than the thickness of the second pillar (412a) at the second point (406).
摘要:
This vehicle subframe (15) includes a main body section (32) that results from a top section (41) and a bottom section (42) being provided with a predetermined gap in the vertical direction by means of being formed in a hollow shape by means of a core unit (80). A central joining section (38) is provided to the front-half section (32g) at the center (32h) in the vehicle widthwise direction of the main body section (32). Furthermore, in the main body section (32), a rear partition wall (64) is joined to the top section (41) and the bottom section (42) at the rearwards direction of the vehicle with respect to the central joining section (38). The rear partition wall (64) extends in the front-back direction of the vehicle.
摘要:
A core (200) for use in casting an internal cooling circuit (30) within a gas turbine engine component (20), the core (200) including a core body with an outer skin (400) in which a core body additive manufacturing binder is locally eliminated.
摘要:
A method (700) of forming a component (80) having an internal passage (82) defined therein includes positioning (702) a jacketed core (310) with respect to a mold (300). The jacketed core includes a hollow structure (320) formed from a first material (322), an inner core (324) disposed within the hollow structure, and a core channel (360) that extends from at least a first end (311) of the inner core through at least a portion of inner core. The method also includes introducing (704) a component material (78) in a molten state into a cavity (304) of the mold, such that the component material in the molten state at least partially absorbs the first material from the jacketed core within the cavity. The method further includes cooling (706) the component material in the cavity to form the component. The inner core defines the internal passage within the component.
摘要:
[Object] To provide a technique for further improving fuel economy. [Solution] An intake port 24 has a quadrangular port region that is substantially quadrangular in a cross section perpendicular to a longitudinal direction (flowing direction of intake air), and openings of injector attachment holes 26 to branch ports 24b and 24c are nearly entirely provided in upper flat wall portions 122b and 122c in quadrangular port regions of the branch ports 24b and 24c. Thus, the size of a dead volume 92 can be made smaller than when the injector attachment holes are provided in an intake port of circular cross section. Therefore, turbulence of intake air flowing in the intake port 24, particularly in the branch ports 24b and 24c can be suppressed, and mixability of fuel and intake air can be enhanced to improve combustion efficiency. As a result, fuel economy can be improved further.