Ultrasonic welding system with dynamic pressure control
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United States of America Patent
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May 14, 2013
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N/A
app pub date -
Nov 4, 2011
filing date -
Nov 4, 2011
priority date (Note) -
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Abstract
An ultrasonic welding system for securing a first work piece to a second work piece includes a welding assembly and a loading assembly disposed adjacent to the welding assembly. The welding assembly includes an ultrasonic controller, an ultrasonic transducer, and a welding tip. The ultrasonic transducer is configured to impart an ultrasonic vibration to the welding tip in response to an electrical signal received from the ultrasonic controller. The loading assembly is configured to generate a pressure load between the welding tip and the first work piece, and includes a first actuator and a second actuator. The first actuator is configured to apply a substantially constant load to the welding assembly, and the second actuator is configured to apply a dynamically variable load to the welding assembly.
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