Process for making an interlocking flanged bushing and products made by this process
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United States of America Patent
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Nov 15, 2016
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N/A
app pub date -
May 18, 2015
filing date -
Aug 30, 2012
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Abstract
The provided process creates a fully flanged interlocked bushing by feeding a metal strip into a stamping assembly having a plurality of tool stations. The stations blank a workpiece from the metal strip, and trim the workpiece's two opposing ends forming a triangular shaped tab and a puzzle locking feature on either end. The workpiece is then formed into an annular shape, wherein the triangular shaped tabs are overlapped as the opposing ends are abutted and interlocked. A flange is then imparted into the side wall of the workpiece relieving the tab's overlapping condition, causing the tabs to abut one another and become co-planar with the flange. This creating a fully flanged part with a tightly fitted parting line. This invention also includes products formed by the aforementioned process.
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