Is it possible to sonic weld metal with plastic?

Ultrasonic welding uses vibration to melt the molecular structures of separate materials together into a single piece. As such, the molecular structures of materials being fused together must be both very similar and structurally compatible, not to mention that they must melt and cool at approximately the same temperature range. While sonic welding of a metallic material into a separate plastic material is possible in some cases, this is usually not a commercially viable fabrication method.