Presentations
- David Grewell. Controlling Amplitude During the Ultrasonic Welding of Thermoplastics. Presentation at 10th Annual Meeting of The Polymer Processing Society (1994). Akron: OH.
- David Grewell, Wilma Nijenhuis. TTIr Welding of Aliphatic Polyketone. IIW Annual Assembly (July 2000). Society of Plastic Engineers: Florence, Italy.
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