Engine cast component having witness marks and method of...

F - Mech Eng,Light,Heat,Weapons – 02 – F

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F02F 7/00 (2006.01)

Patent

CA 2660652

A component (100) for an internal combustion engine includes a plurality of ascast features (e.g. 116) formed thereon, and a plurality of machined features (e.g. 120). The component (100) also includes at least one witness mark (128), the witness mark (128) including a cavity (202) surrounded by a first lateral surface (204), a first inclined surface (208), a second inclined surface (210), and a valley surface (212). The at least one witness mark (128) is formed during a casting operation, and is used to locate the component (100) on a fixture (300). The plurality of machined features (120) do not encroach onto an area of the at least one witness mark (128). The first inclined surface (208) and the second inclined surface (210) are at an angle (á) with respect to each other.

L'invention concerne un composant (100) pour un moteur à combustion interne, comprenant une pluralité de caractéristiques brutes de coulée (par exemple, 116) formées sur celui-ci, et une pluralité de caractéristiques usinées (par exemple, 120). Le composant (100) comprend aussi au moins un repère (128), le repère (128) comprenant une cavité (202) entourée par une première surface latérale (204), une première surface inclinée (208), une deuxième surface inclinée (210) et une surface de vallée (212). Ledit ou lesdits repères (128) sont formés pendant une opération de coulée et sont utilisés pour positionner le composant (100) sur une fixation (300). La pluralité de caractéristiques usinées (120) n'empiète pas sur la région dudit ou desdits repères (128). La première surface inclinée (208) et la deuxième surface inclinée (210) s'étendent selon un certain angle (á) l'une par rapport à l'autre.

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