INVESTIGATION OF ULTRASONIC WELDING OF REFRACTORY METALS AND ALLOYS Open PDF Document Details Document Type Technical Report Publication Date Jan 01, 1963 Accession Number AD0299397 Tags Communities of Interest Air Platforms Space Weapons Technologies DTIC Thesaurus Topics Aerospace Industry Air Force Aircrafts Contracts Engineering Intervals Materials Metallurgy Metals Military Research Munitions New York Ordnance Laboratories Production Engineering Refractory Metals Standards Ultrasonic Welding