Composite brake drum
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United States of America Patent
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Jun 5, 2001
Grant Date -
N/A
app pub date -
Dec 29, 1998
filing date -
Dec 29, 1998
priority date (Note) -
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Abstract
A composite brake drum for a motor vehicle or the like. The brake drum has a drum body that is comprised of a first material, preferably a cast metal, such as gray iron. The drum body has a cylindrical section, a shoulder, and a mounting face. The brake drum also includes an annular band formed from a second material, preferably a stamped metal such as steel. The annular band encircles the cylindrical section of the drum body. The steel annular band is positioned in a mold apparatus and molten iron is introduced into a mold cavity defined thereby. The mold and annular band are maintained in a static condition during the casting process.
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