Differential housing with integrated ring gear
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United States of America Patent
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Apr 24, 2007
Grant Date -
Jul 15, 2004
app pub date -
Dec 2, 2003
filing date -
Dec 2, 2002
priority date (Note) -
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Abstract
A method is disclosed for making a differential housing having a ring gear integrally formed therein. The method includes the steps of forging a conical frustum from a steel rod; deforming the frustum between upper and lower die halves of a tool to produce a differential housing having an annular rim; and forging a plurality of teeth in the annular rim defining the rim gear.
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