Amplitude and Force Profiling: Studies in Ultrasonic Welding of Thermoplastics
نویسنده
چکیده
This paper reviews effects of amplitude and force control during the ultrasonic welding cycle of thermoplastics. In a previously published paper, the benefits of amplitude profiling were detailed as increased strength and reduced part marking. This paper reviews the mechanisms for such observations and details additional benefits, such as decreased residual stresses and increased solvent resistance of the resulting bonds. Force profiling was also studied. Similar results were found. However, one notable difference was that force profiling could decrease weld time. Lastly, by combining amplitude and force profiling, weld strength, consistency and weld times were further improved compared to any approach studied so far.
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