ULTRASONIC WELDING OF REFRACTORY METALS
Abstract
INTERNAL PLASTIC DEFORMATION IS COMMONLY OBSERVED IN MICROSECTIONS OF ULTRASONIC WELDS AND WAS NOTED IN WELD SECTIONS OF BRITTLE MATERIALS SUCH AS Be. Certain brittle materials tend to crack during ultrasonic welding. Consideration of means to eliminate this occasional cracking tendency suggests methods to permit plastic flow and to inhibit cracking: (1) use of temperatures above the ductile-brittle transition point prior to the application of stresses; (2) welding with the weld locale in compression; (3) decreasing the number of stress cycles to which the material is subjected during ultrasonic welding.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 09, 1961
- Accession Number
- AD0267314
Entities
People
- C. R. Frownfelter