Ultrasonic Welding Using Amplitude Profiling
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United States of America Patent
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Issued Date -
Mar 6, 2008
app pub date -
Aug 13, 2007
filing date -
Sep 1, 2006
priority date (Note) -
Abandoned
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Abstract
An ultrasonic welding apparatus has a power supply coupled to a weld stack. The weld stack has an ultrasonic transducer coupled to a horn by a booster. The horn has a horn tip. The weld cycle of the ultrasonic welding apparatus is amplitude profiled so that during an initial period, the weld amplitude at the horn tip is high and after the initial period, the weld amplitude is low.
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