Two-piece wheel for a motor vehicle
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United States of America Patent
Stats
-
Mar 11, 2003
Grant Date -
Nov 1, 2001
app pub date -
Mar 16, 2001
filing date -
Mar 16, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The rim spider of a two-piece wheel for a motor vehicle is provided with hollow spokes in which a metal foam core is arranged and remains. The rim spider is connected with a rim by way of weld ring surfaces which are friction welded. The metal foam core is provided in a special manner with a partial core which is supported on a top core of a casting die tool so as to provide positioned bearing in the casting die tool. By way of slides, which are arranged in a distributed manner on a circumference of the rim spider, an influence on heating and cooling behavior, during and after casting, is exercised.
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