Manufacturing for a cast engine part having a bearing arrangement shaped in several parts via fracture separating
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 14, 2000
Grant Date -
N/A
app pub date -
Apr 6, 1999
filing date -
Dec 19, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A core is formed and a prefabricated bearing bore is provided. Two separate projections are provided on the core wherein free projection edges of the two separate projections have a respective shaping radius between R=0.sub.mm and R.ltoreq.0.45.sub.mm. Subsequently indentations are produced in a circumferential area of the bearing bore by the two separate projections on the core wherein the indentations serve as fracture notches. The cast engine part is then formed by casting metal around the core using said fraction notches as incipient crack sites.
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