Light metal molded part, especially a crankcase for an internal combustion engine
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United States of America Patent
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Jan 13, 2004
Grant Date -
N/A
app pub date -
Feb 26, 2002
filing date -
Mar 19, 1999
priority date (Note) -
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Abstract
Described is a molded part made of light metal, in particular a crankcase for an internal combustion engine, comprising holes (5) for receiving fastening screws (6) with the help of which compressive strains can be exerted on the molded body in a light metal area. In order to create advantageous constructional conditions, it is proposed that at least one open-pored sintered body (7) is cast in the light metal area exposed to compressive strains with infiltration of the light metal at least in the pores of a surface layer; and that the sintered body (7) having a lower coefficient of thermal expansion than the light metal has a strength at least corresponding with the strength of the light area when combined with the infiltrated light metal.
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