Podcasts Other Tech Briefs: Who's Who at NASA Jeff Ding: Who's Who at NASA

Jeff Ding: Who's Who at NASA

Published: Nov. 1, 2014, 5 p.m.

Jeff Ding developed Ultrasonic Stir Welding (USW) to join large pieces of very high‑strength metals, such as titanium and Inconel. The solid-state weld process improves the current Thermal Stir Welding process by adding high-power ultrasonic (HPU) energy at 20 kHz frequency.