Ultrasonic powdered metal compaction
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United States of America Patent
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N/A
Issued Date -
Mar 18, 2004
app pub date -
Sep 12, 2002
filing date -
Sep 12, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An apparatus for making cores for ignition coil assemblies using powdered metal having magnetically permeable material is disclosed. The apparatus includes an ultrasonic tool that includes a cavity having a first axis. The tool vibrates to provide radial compression of powdered metal placed in the cavity. The apparatus also includes a first ram and a second ram. The cavity is located between the rams; the rams are located along the first axis. The rams are configured for opposing movement toward the cavity to provide axial compression of the powdered metal placed in the cavity. The apparatus also includes a control unit that controls the operation of the ultrasonic tool and the rams, allowing for simultaneous radial and axial compression of the powdered metal for a pre-determined time into a completed core. The control unit also controls removal of the core.
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