Investigation of Ultrasonic Welding of All-Beta Titanium Alloy
Abstract
The results of this work indicate the feasibility of using ultrasonic spot-type welding to fabricate structural members from thin strips of conditioned all-beta Ti alloy. The strength/weight ratio of the all-beta alloy used for these welding studies had been increased to approximately 1.4 million by heat treatment alone and to slightly more than 1.5 million by cold-rolling the heat-treated material. Furthermore, the ultimate strength/weight ratio of the conditioned all-beta alloy is superior to that obtainable with strips of stainless steel, or special alloys, in similar thicknesses. Successful multi-ply structures were assembled by both through-welding and ply-by-ply ultrasonic welding techniques. The welding characteristics of hardened, tool-steel welding tips were found to be superior to those of Inconel X. Satisfactory levels for input power, clamping force, and welding interval were established by statistical methods in order to secure ultrasonic welds of high strength. From the information obtained in the present work, structural assemblies of high strength, but lighter in weight than the ones currently in use, can be fabricated from thin strips of conditioned, all-beta Ti alloy by ultrasonic spot-type welding.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1961
- Accession Number
- AD0264117
Entities
People
- H. L. Mckaig
- J. B. Jone
- John G. Thomas